./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/weaver/popl20-min-max-inc-dec.wvr.c --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_2e985cc7-c95a-4813-94bc-ff4e92e70414/bin/uautomizer-YU5uOKAj3y/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e985cc7-c95a-4813-94bc-ff4e92e70414/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_2e985cc7-c95a-4813-94bc-ff4e92e70414/bin/uautomizer-YU5uOKAj3y/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e985cc7-c95a-4813-94bc-ff4e92e70414/bin/uautomizer-YU5uOKAj3y/config/AutomizerReach.xml -i ../../sv-benchmarks/c/weaver/popl20-min-max-inc-dec.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e985cc7-c95a-4813-94bc-ff4e92e70414/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_2e985cc7-c95a-4813-94bc-ff4e92e70414/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 a1648913be4b4e88120f8ece4966a58804b334c451c87254dfc42f8e396f396f
--- Real Ultimate output ---
This is Ultimate 0.2.1-dev-63182f1
[2021-11-13 17:34:09,238 INFO L177 SettingsManager]: Resetting all preferences to default values...
[2021-11-13 17:34:09,240 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values
[2021-11-13 17:34:09,277 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2021-11-13 17:34:09,278 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2021-11-13 17:34:09,279 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2021-11-13 17:34:09,281 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2021-11-13 17:34:09,283 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values
[2021-11-13 17:34:09,285 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values
[2021-11-13 17:34:09,286 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values
[2021-11-13 17:34:09,287 INFO L181 SettingsManager]: Resetting Sifa preferences to default values
[2021-11-13 17:34:09,289 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2021-11-13 17:34:09,289 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values
[2021-11-13 17:34:09,291 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values
[2021-11-13 17:34:09,292 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2021-11-13 17:34:09,294 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values
[2021-11-13 17:34:09,295 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2021-11-13 17:34:09,296 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2021-11-13 17:34:09,298 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2021-11-13 17:34:09,301 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values
[2021-11-13 17:34:09,302 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2021-11-13 17:34:09,304 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values
[2021-11-13 17:34:09,305 INFO L181 SettingsManager]: Resetting Referee preferences to default values
[2021-11-13 17:34:09,306 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values
[2021-11-13 17:34:09,310 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2021-11-13 17:34:09,311 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2021-11-13 17:34:09,311 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values
[2021-11-13 17:34:09,312 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values
[2021-11-13 17:34:09,313 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values
[2021-11-13 17:34:09,314 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring...
[2021-11-13 17:34:09,315 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values
[2021-11-13 17:34:09,316 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values
[2021-11-13 17:34:09,317 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values
[2021-11-13 17:34:09,318 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values
[2021-11-13 17:34:09,319 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2021-11-13 17:34:09,319 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values
[2021-11-13 17:34:09,320 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring...
[2021-11-13 17:34:09,320 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring...
[2021-11-13 17:34:09,321 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values
[2021-11-13 17:34:09,322 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values
[2021-11-13 17:34:09,323 INFO L188 SettingsManager]: Finished resetting all preferences to default values...
[2021-11-13 17:34:09,324 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e985cc7-c95a-4813-94bc-ff4e92e70414/bin/uautomizer-YU5uOKAj3y/config/svcomp-Reach-32bit-Automizer_Default.epf
[2021-11-13 17:34:09,348 INFO L113 SettingsManager]: Loading preferences was successful
[2021-11-13 17:34:09,349 INFO L115 SettingsManager]: Preferences different from defaults after loading the file:
[2021-11-13 17:34:09,349 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2021-11-13 17:34:09,349 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2021-11-13 17:34:09,350 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2021-11-13 17:34:09,350 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2021-11-13 17:34:09,351 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2021-11-13 17:34:09,352 INFO L138 SettingsManager]: * Create parallel compositions if possible=false
[2021-11-13 17:34:09,352 INFO L138 SettingsManager]: * Use SBE=true
[2021-11-13 17:34:09,352 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2021-11-13 17:34:09,352 INFO L138 SettingsManager]: * sizeof long=4
[2021-11-13 17:34:09,353 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true
[2021-11-13 17:34:09,353 INFO L138 SettingsManager]: * sizeof POINTER=4
[2021-11-13 17:34:09,353 INFO L138 SettingsManager]: * Check division by zero=IGNORE
[2021-11-13 17:34:09,353 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE
[2021-11-13 17:34:09,354 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE
[2021-11-13 17:34:09,354 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE
[2021-11-13 17:34:09,354 INFO L138 SettingsManager]: * sizeof long double=12
[2021-11-13 17:34:09,354 INFO L138 SettingsManager]: * Check if freed pointer was valid=false
[2021-11-13 17:34:09,355 INFO L138 SettingsManager]: * Use constant arrays=true
[2021-11-13 17:34:09,355 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE
[2021-11-13 17:34:09,355 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2021-11-13 17:34:09,356 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements
[2021-11-13 17:34:09,356 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode
[2021-11-13 17:34:09,356 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2021-11-13 17:34:09,357 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2021-11-13 17:34:09,357 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP
[2021-11-13 17:34:09,357 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2021-11-13 17:34:09,357 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL
[2021-11-13 17:34:09,358 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2021-11-13 17:34:09,358 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF
[2021-11-13 17:34:09,358 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET
[2021-11-13 17:34:09,358 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2021-11-13 17:34:09,359 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE
[2021-11-13 17:34:09,359 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_2e985cc7-c95a-4813-94bc-ff4e92e70414/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$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e985cc7-c95a-4813-94bc-ff4e92e70414/bin/uautomizer-YU5uOKAj3y
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) )
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a1648913be4b4e88120f8ece4966a58804b334c451c87254dfc42f8e396f396f
[2021-11-13 17:34:09,613 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp
[2021-11-13 17:34:09,633 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2021-11-13 17:34:09,635 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2021-11-13 17:34:09,637 INFO L271 PluginConnector]: Initializing CDTParser...
[2021-11-13 17:34:09,637 INFO L275 PluginConnector]: CDTParser initialized
[2021-11-13 17:34:09,639 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e985cc7-c95a-4813-94bc-ff4e92e70414/bin/uautomizer-YU5uOKAj3y/../../sv-benchmarks/c/weaver/popl20-min-max-inc-dec.wvr.c
[2021-11-13 17:34:09,707 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e985cc7-c95a-4813-94bc-ff4e92e70414/bin/uautomizer-YU5uOKAj3y/data/dd3033316/6902216887894ba3815e3dfa8fb0b431/FLAGd2d4cd604
[2021-11-13 17:34:10,121 INFO L306 CDTParser]: Found 1 translation units.
[2021-11-13 17:34:10,122 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e985cc7-c95a-4813-94bc-ff4e92e70414/sv-benchmarks/c/weaver/popl20-min-max-inc-dec.wvr.c
[2021-11-13 17:34:10,129 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e985cc7-c95a-4813-94bc-ff4e92e70414/bin/uautomizer-YU5uOKAj3y/data/dd3033316/6902216887894ba3815e3dfa8fb0b431/FLAGd2d4cd604
[2021-11-13 17:34:10,509 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e985cc7-c95a-4813-94bc-ff4e92e70414/bin/uautomizer-YU5uOKAj3y/data/dd3033316/6902216887894ba3815e3dfa8fb0b431
[2021-11-13 17:34:10,512 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2021-11-13 17:34:10,513 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements.
[2021-11-13 17:34:10,514 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2021-11-13 17:34:10,515 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator...
[2021-11-13 17:34:10,518 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized
[2021-11-13 17:34:10,519 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 05:34:10" (1/1) ...
[2021-11-13 17:34:10,520 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@33899a4c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:34:10, skipping insertion in model container
[2021-11-13 17:34:10,520 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 05:34:10" (1/1) ...
[2021-11-13 17:34:10,527 INFO L145 MainTranslator]: Starting translation in SV-COMP mode
[2021-11-13 17:34:10,552 INFO L178 MainTranslator]: Built tables and reachable declarations
[2021-11-13 17:34:10,769 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_2e985cc7-c95a-4813-94bc-ff4e92e70414/sv-benchmarks/c/weaver/popl20-min-max-inc-dec.wvr.c[3271,3284]
[2021-11-13 17:34:10,776 INFO L206 PostProcessor]: Analyzing one entry point: main
[2021-11-13 17:34:10,784 INFO L203 MainTranslator]: Completed pre-run
[2021-11-13 17:34:10,812 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_2e985cc7-c95a-4813-94bc-ff4e92e70414/sv-benchmarks/c/weaver/popl20-min-max-inc-dec.wvr.c[3271,3284]
[2021-11-13 17:34:10,815 INFO L206 PostProcessor]: Analyzing one entry point: main
[2021-11-13 17:34:10,829 INFO L208 MainTranslator]: Completed translation
[2021-11-13 17:34:10,830 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:34:10 WrapperNode
[2021-11-13 17:34:10,830 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2021-11-13 17:34:10,831 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2021-11-13 17:34:10,831 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner...
[2021-11-13 17:34:10,831 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized
[2021-11-13 17:34:10,838 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:34:10" (1/1) ...
[2021-11-13 17:34:10,848 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:34:10" (1/1) ...
[2021-11-13 17:34:10,873 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2021-11-13 17:34:10,874 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2021-11-13 17:34:10,874 INFO L271 PluginConnector]: Initializing Boogie Preprocessor...
[2021-11-13 17:34:10,874 INFO L275 PluginConnector]: Boogie Preprocessor initialized
[2021-11-13 17:34:10,882 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:34:10" (1/1) ...
[2021-11-13 17:34:10,882 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:34:10" (1/1) ...
[2021-11-13 17:34:10,886 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:34:10" (1/1) ...
[2021-11-13 17:34:10,887 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:34:10" (1/1) ...
[2021-11-13 17:34:10,895 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:34:10" (1/1) ...
[2021-11-13 17:34:10,900 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:34:10" (1/1) ...
[2021-11-13 17:34:10,902 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:34:10" (1/1) ...
[2021-11-13 17:34:10,906 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2021-11-13 17:34:10,906 INFO L113 PluginConnector]: ------------------------RCFGBuilder----------------------------
[2021-11-13 17:34:10,907 INFO L271 PluginConnector]: Initializing RCFGBuilder...
[2021-11-13 17:34:10,907 INFO L275 PluginConnector]: RCFGBuilder initialized
[2021-11-13 17:34:10,920 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:34:10" (1/1) ...
[2021-11-13 17:34:10,929 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2021-11-13 17:34:10,939 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e985cc7-c95a-4813-94bc-ff4e92e70414/bin/uautomizer-YU5uOKAj3y/z3
[2021-11-13 17:34:10,950 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e985cc7-c95a-4813-94bc-ff4e92e70414/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null)
[2021-11-13 17:34:10,963 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e985cc7-c95a-4813-94bc-ff4e92e70414/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process
[2021-11-13 17:34:10,990 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack
[2021-11-13 17:34:10,990 INFO L130 BoogieDeclarations]: Found specification of procedure write~int
[2021-11-13 17:34:10,990 INFO L130 BoogieDeclarations]: Found specification of procedure read~int
[2021-11-13 17:34:10,990 INFO L130 BoogieDeclarations]: Found specification of procedure thread1
[2021-11-13 17:34:10,990 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1
[2021-11-13 17:34:10,990 INFO L130 BoogieDeclarations]: Found specification of procedure thread2
[2021-11-13 17:34:10,990 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2
[2021-11-13 17:34:10,991 INFO L130 BoogieDeclarations]: Found specification of procedure thread3
[2021-11-13 17:34:10,991 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3
[2021-11-13 17:34:10,991 INFO L130 BoogieDeclarations]: Found specification of procedure thread4
[2021-11-13 17:34:10,991 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4
[2021-11-13 17:34:10,991 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int
[2021-11-13 17:34:10,991 INFO L130 BoogieDeclarations]: Found specification of procedure thread5
[2021-11-13 17:34:10,991 INFO L138 BoogieDeclarations]: Found implementation of procedure thread5
[2021-11-13 17:34:10,992 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end
[2021-11-13 17:34:10,992 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin
[2021-11-13 17:34:10,992 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap
[2021-11-13 17:34:10,992 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2021-11-13 17:34:10,992 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2021-11-13 17:34:10,992 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2021-11-13 17:34:10,994 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 17:34:11,598 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2021-11-13 17:34:11,598 INFO L299 CfgBuilder]: Removed 5 assume(true) statements.
[2021-11-13 17:34:11,605 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 05:34:11 BoogieIcfgContainer
[2021-11-13 17:34:11,606 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2021-11-13 17:34:11,607 INFO L113 PluginConnector]: ------------------------TraceAbstraction----------------------------
[2021-11-13 17:34:11,609 INFO L271 PluginConnector]: Initializing TraceAbstraction...
[2021-11-13 17:34:11,612 INFO L275 PluginConnector]: TraceAbstraction initialized
[2021-11-13 17:34:11,612 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.11 05:34:10" (1/3) ...
[2021-11-13 17:34:11,613 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1bb48b16 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 05:34:11, skipping insertion in model container
[2021-11-13 17:34:11,614 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:34:10" (2/3) ...
[2021-11-13 17:34:11,614 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1bb48b16 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 05:34:11, skipping insertion in model container
[2021-11-13 17:34:11,615 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 05:34:11" (3/3) ...
[2021-11-13 17:34:11,616 INFO L111 eAbstractionObserver]: Analyzing ICFG popl20-min-max-inc-dec.wvr.c
[2021-11-13 17:34:11,621 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program
[2021-11-13 17:34:11,622 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2021-11-13 17:34:11,622 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2021-11-13 17:34:11,622 INFO L513 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances.
[2021-11-13 17:34:11,689 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~mem3| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-13 17:34:11,689 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~mem3| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-13 17:34:11,690 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-13 17:34:11,690 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-13 17:34:11,690 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-13 17:34:11,691 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-13 17:34:11,691 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-13 17:34:11,692 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-13 17:34:11,692 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-13 17:34:11,692 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-13 17:34:11,692 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-13 17:34:11,692 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-13 17:34:11,693 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~mem6| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-13 17:34:11,693 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-13 17:34:11,693 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~mem5| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-13 17:34:11,694 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~mem6| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-13 17:34:11,694 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-13 17:34:11,695 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~mem6| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-13 17:34:11,695 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-13 17:34:11,695 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~mem5| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-13 17:34:11,696 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~mem6| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-13 17:34:11,696 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-13 17:34:11,697 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-13 17:34:11,697 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-13 17:34:11,698 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-13 17:34:11,698 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-13 17:34:11,698 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-13 17:34:11,698 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-13 17:34:11,698 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-13 17:34:11,699 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-13 17:34:11,699 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-13 17:34:11,699 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-13 17:34:11,701 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork4_#t~mem8| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-13 17:34:11,701 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork4_#t~mem8| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-13 17:34:11,701 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork4_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-13 17:34:11,701 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork4_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-13 17:34:11,702 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork4_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-13 17:34:11,702 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork4_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-13 17:34:11,702 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork4_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-13 17:34:11,702 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork4_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-13 17:34:11,702 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork4_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-13 17:34:11,703 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork4_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-13 17:34:11,703 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork4_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-13 17:34:11,703 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork4_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-13 17:34:11,703 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork4_#t~mem11| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-13 17:34:11,704 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork4_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-13 17:34:11,704 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork4_#t~mem11| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-13 17:34:11,704 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork4_#t~mem10| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-13 17:34:11,704 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork4_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-13 17:34:11,706 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork4_#t~mem11| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-13 17:34:11,706 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork4_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-13 17:34:11,706 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork4_#t~mem11| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-13 17:34:11,707 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork4_#t~mem10| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-13 17:34:11,707 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork4_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-13 17:34:11,707 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork4_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-13 17:34:11,707 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork4_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-13 17:34:11,708 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork4_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-13 17:34:11,709 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork4_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-13 17:34:11,709 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork4_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-13 17:34:11,709 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork4_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-13 17:34:11,710 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork4_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-13 17:34:11,710 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork4_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-13 17:34:11,710 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork4_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-13 17:34:11,710 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork4_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-13 17:34:11,711 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_~i~2#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-13 17:34:11,711 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_~i~2#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-13 17:34:11,711 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_~i~2#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-13 17:34:11,712 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_~i~2#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-13 17:34:11,712 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_~i~2#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-13 17:34:11,712 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_~i~2#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-13 17:34:11,712 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-13 17:34:11,712 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-13 17:34:11,713 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-13 17:34:11,713 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-13 17:34:11,713 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_~i~2#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-13 17:34:11,713 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~mem15#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-13 17:34:11,713 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~mem14#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-13 17:34:11,714 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-13 17:34:11,715 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~post16#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-13 17:34:11,718 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-13 17:34:11,718 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_~i~2#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-13 17:34:11,718 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~mem15#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-13 17:34:11,719 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~mem14#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-13 17:34:11,719 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-13 17:34:11,720 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~post16#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-13 17:34:11,721 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-13 17:34:11,722 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_~i~2#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-13 17:34:11,722 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~post13#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-13 17:34:11,724 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_~i~2#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-13 17:34:11,724 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~post13#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-13 17:34:11,724 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~post13#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-13 17:34:11,724 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_~i~2#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-13 17:34:11,725 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~post13#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-13 17:34:11,725 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_~i~2#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-13 17:34:11,725 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~post13#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-13 17:34:11,725 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~post13#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-13 17:34:11,725 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork3_~i~3#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-13 17:34:11,726 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork3_~i~3#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-13 17:34:11,726 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork3_~i~3#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-13 17:34:11,726 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork3_~i~3#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-13 17:34:11,726 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork3_~i~3#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-13 17:34:11,726 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork3_~i~3#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-13 17:34:11,726 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork3_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-13 17:34:11,727 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork3_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-13 17:34:11,727 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork3_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-13 17:34:11,727 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork3_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-13 17:34:11,727 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork3_~i~3#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-13 17:34:11,727 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork3_#t~post20#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-13 17:34:11,727 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork3_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-13 17:34:11,728 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork3_#t~mem19#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-13 17:34:11,728 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork3_#t~mem18#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-13 17:34:11,728 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork3_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-13 17:34:11,728 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork3_~i~3#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-13 17:34:11,728 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork3_#t~post20#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-13 17:34:11,728 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork3_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-13 17:34:11,728 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork3_#t~mem19#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-13 17:34:11,729 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork3_#t~mem18#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-13 17:34:11,729 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork3_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-13 17:34:11,729 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork3_~i~3#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-13 17:34:11,729 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork3_#t~post17#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-13 17:34:11,729 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork3_~i~3#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-13 17:34:11,729 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork3_#t~post17#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-13 17:34:11,730 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork3_#t~post17#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-13 17:34:11,730 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork3_~i~3#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-13 17:34:11,730 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork3_#t~post17#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-13 17:34:11,730 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork3_~i~3#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-13 17:34:11,730 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork3_#t~post17#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-13 17:34:11,730 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork3_#t~post17#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-13 17:34:11,731 WARN L322 ript$VariableManager]: TermVariabe |thread5Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-13 17:34:11,731 WARN L322 ript$VariableManager]: TermVariabe |thread5Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-13 17:34:11,731 WARN L322 ript$VariableManager]: TermVariabe |thread5Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-13 17:34:11,731 WARN L322 ript$VariableManager]: TermVariabe |thread5Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-13 17:34:11,734 WARN L322 ript$VariableManager]: TermVariabe |thread5Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-13 17:34:11,735 WARN L322 ript$VariableManager]: TermVariabe |thread5Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-13 17:34:11,736 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-13 17:34:11,736 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-13 17:34:11,736 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~post13#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-13 17:34:11,736 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-13 17:34:11,736 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-13 17:34:11,736 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~post16#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-13 17:34:11,737 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_~i~2#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-13 17:34:11,737 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~mem15#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-13 17:34:11,737 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~mem14#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-13 17:34:11,766 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-13 17:34:11,766 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~mem3| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-13 17:34:11,766 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-13 17:34:11,766 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~mem5| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-13 17:34:11,767 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~mem6| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-13 17:34:11,767 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-13 17:34:11,767 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-13 17:34:11,767 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-13 17:34:11,768 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork3_~i~3#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-13 17:34:11,768 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork3_#t~mem18#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-13 17:34:11,768 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork3_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-13 17:34:11,768 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork3_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-13 17:34:11,768 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork3_#t~mem19#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-13 17:34:11,769 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork3_#t~post20#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-13 17:34:11,769 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork3_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-13 17:34:11,769 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork3_#t~post17#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-13 17:34:11,769 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork3_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-13 17:34:11,770 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork4_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-13 17:34:11,770 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork4_#t~mem8| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-13 17:34:11,770 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork4_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-13 17:34:11,770 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork4_#t~mem10| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-13 17:34:11,770 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork4_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-13 17:34:11,771 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork4_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-13 17:34:11,771 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork4_#t~mem11| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-13 17:34:11,771 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork4_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-13 17:34:11,774 INFO L148 ThreadInstanceAdder]: Constructed 5 joinOtherThreadTransitions.
[2021-11-13 17:34:11,842 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2021-11-13 17:34:11,858 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 17:34:11,858 INFO L340 AbstractCegarLoop]: Starting to check reachability of 6 error locations.
[2021-11-13 17:34:11,881 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 197 places, 195 transitions, 430 flow
[2021-11-13 17:34:12,021 INFO L129 PetriNetUnfolder]: 14/190 cut-off events.
[2021-11-13 17:34:12,022 INFO L130 PetriNetUnfolder]: For 5/5 co-relation queries the response was YES.
[2021-11-13 17:34:12,028 INFO L84 FinitePrefix]: Finished finitePrefix Result has 211 conditions, 190 events. 14/190 cut-off events. For 5/5 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 134 event pairs, 0 based on Foata normal form. 0/175 useless extension candidates. Maximal degree in co-relation 153. Up to 2 conditions per place.
[2021-11-13 17:34:12,029 INFO L82 GeneralOperation]: Start removeDead. Operand has 197 places, 195 transitions, 430 flow
[2021-11-13 17:34:12,039 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 177 places, 175 transitions, 380 flow
[2021-11-13 17:34:12,106 INFO L129 PetriNetUnfolder]: 14/174 cut-off events.
[2021-11-13 17:34:12,107 INFO L130 PetriNetUnfolder]: For 5/5 co-relation queries the response was YES.
[2021-11-13 17:34:12,107 INFO L246 CegarLoopForPetriNet]: Found error trace
[2021-11-13 17:34:12,108 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:34:12,108 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 2 more)] ===
[2021-11-13 17:34:12,116 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-11-13 17:34:12,117 INFO L85 PathProgramCache]: Analyzing trace with hash 1870663669, now seen corresponding path program 1 times
[2021-11-13 17:34:12,126 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-11-13 17:34:12,127 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [423137200]
[2021-11-13 17:34:12,127 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-11-13 17:34:12,128 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2021-11-13 17:34:12,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-11-13 17:34:12,408 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 17:34:12,408 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-11-13 17:34:12,409 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [423137200]
[2021-11-13 17:34:12,409 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [423137200] provided 1 perfect and 0 imperfect interpolant sequences
[2021-11-13 17:34:12,410 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2021-11-13 17:34:12,410 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2021-11-13 17:34:12,411 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [935702555]
[2021-11-13 17:34:12,412 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2021-11-13 17:34:12,421 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2021-11-13 17:34:12,422 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-11-13 17:34:12,451 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2021-11-13 17:34:12,453 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2021-11-13 17:34:12,455 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 169 out of 195
[2021-11-13 17:34:12,464 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 177 places, 175 transitions, 380 flow. Second operand has 2 states, 2 states have (on average 175.5) internal successors, (351), 2 states have internal predecessors, (351), 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 17:34:12,464 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2021-11-13 17:34:12,464 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 169 of 195
[2021-11-13 17:34:12,467 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2021-11-13 17:34:12,854 INFO L129 PetriNetUnfolder]: 308/1173 cut-off events.
[2021-11-13 17:34:12,854 INFO L130 PetriNetUnfolder]: For 136/136 co-relation queries the response was YES.
[2021-11-13 17:34:12,866 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1738 conditions, 1173 events. 308/1173 cut-off events. For 136/136 co-relation queries the response was YES. Maximal size of possible extension queue 58. Compared 7407 event pairs, 205 based on Foata normal form. 235/1256 useless extension candidates. Maximal degree in co-relation 1528. Up to 402 conditions per place.
[2021-11-13 17:34:12,881 INFO L132 encePairwiseOnDemand]: 186/195 looper letters, 16 selfloop transitions, 0 changer transitions 4/166 dead transitions.
[2021-11-13 17:34:12,881 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 178 places, 166 transitions, 394 flow
[2021-11-13 17:34:12,882 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states.
[2021-11-13 17:34:12,885 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states.
[2021-11-13 17:34:12,896 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 363 transitions.
[2021-11-13 17:34:12,902 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.9307692307692308
[2021-11-13 17:34:12,904 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 363 transitions.
[2021-11-13 17:34:12,905 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 363 transitions.
[2021-11-13 17:34:12,909 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic.
[2021-11-13 17:34:12,911 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 363 transitions.
[2021-11-13 17:34:12,918 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 181.5) internal successors, (363), 2 states have internal predecessors, (363), 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 17:34:12,928 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 195.0) internal successors, (585), 3 states have internal predecessors, (585), 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 17:34:12,929 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 195.0) internal successors, (585), 3 states have internal predecessors, (585), 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 17:34:12,931 INFO L186 Difference]: Start difference. First operand has 177 places, 175 transitions, 380 flow. Second operand 2 states and 363 transitions.
[2021-11-13 17:34:12,932 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 178 places, 166 transitions, 394 flow
[2021-11-13 17:34:12,939 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 168 places, 166 transitions, 374 flow, removed 0 selfloop flow, removed 10 redundant places.
[2021-11-13 17:34:12,945 INFO L242 Difference]: Finished difference. Result has 168 places, 162 transitions, 334 flow
[2021-11-13 17:34:12,947 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=195, PETRI_DIFFERENCE_MINUEND_FLOW=342, PETRI_DIFFERENCE_MINUEND_PLACES=167, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=166, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=166, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=334, PETRI_PLACES=168, PETRI_TRANSITIONS=162}
[2021-11-13 17:34:12,953 INFO L334 CegarLoopForPetriNet]: 177 programPoint places, -9 predicate places.
[2021-11-13 17:34:12,953 INFO L470 AbstractCegarLoop]: Abstraction has has 168 places, 162 transitions, 334 flow
[2021-11-13 17:34:12,954 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 175.5) internal successors, (351), 2 states have internal predecessors, (351), 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 17:34:12,954 INFO L246 CegarLoopForPetriNet]: Found error trace
[2021-11-13 17:34:12,955 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:34:12,955 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2021-11-13 17:34:12,955 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 2 more)] ===
[2021-11-13 17:34:12,957 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-11-13 17:34:12,957 INFO L85 PathProgramCache]: Analyzing trace with hash 2114513440, now seen corresponding path program 1 times
[2021-11-13 17:34:12,957 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-11-13 17:34:12,957 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1798183663]
[2021-11-13 17:34:12,958 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-11-13 17:34:12,958 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2021-11-13 17:34:13,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-11-13 17:34:13,560 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 17:34:13,563 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-11-13 17:34:13,563 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1798183663]
[2021-11-13 17:34:13,563 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1798183663] provided 1 perfect and 0 imperfect interpolant sequences
[2021-11-13 17:34:13,564 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2021-11-13 17:34:13,564 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2021-11-13 17:34:13,564 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [31026665]
[2021-11-13 17:34:13,564 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2021-11-13 17:34:13,566 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2021-11-13 17:34:13,567 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-11-13 17:34:13,568 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2021-11-13 17:34:13,568 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30
[2021-11-13 17:34:13,572 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 135 out of 195
[2021-11-13 17:34:13,574 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 168 places, 162 transitions, 334 flow. Second operand has 6 states, 6 states have (on average 141.0) internal successors, (846), 6 states have internal predecessors, (846), 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 17:34:13,574 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2021-11-13 17:34:13,574 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 135 of 195
[2021-11-13 17:34:13,574 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2021-11-13 17:34:16,285 INFO L129 PetriNetUnfolder]: 8050/15230 cut-off events.
[2021-11-13 17:34:16,285 INFO L130 PetriNetUnfolder]: For 246/246 co-relation queries the response was YES.
[2021-11-13 17:34:16,352 INFO L84 FinitePrefix]: Finished finitePrefix Result has 26981 conditions, 15230 events. 8050/15230 cut-off events. For 246/246 co-relation queries the response was YES. Maximal size of possible extension queue 905. Compared 135615 event pairs, 4677 based on Foata normal form. 0/12261 useless extension candidates. Maximal degree in co-relation 26978. Up to 6422 conditions per place.
[2021-11-13 17:34:16,466 INFO L132 encePairwiseOnDemand]: 189/195 looper letters, 60 selfloop transitions, 5 changer transitions 0/181 dead transitions.
[2021-11-13 17:34:16,467 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 169 places, 181 transitions, 506 flow
[2021-11-13 17:34:16,467 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states.
[2021-11-13 17:34:16,467 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states.
[2021-11-13 17:34:16,471 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 876 transitions.
[2021-11-13 17:34:16,472 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7487179487179487
[2021-11-13 17:34:16,472 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 876 transitions.
[2021-11-13 17:34:16,472 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 876 transitions.
[2021-11-13 17:34:16,473 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic.
[2021-11-13 17:34:16,473 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 876 transitions.
[2021-11-13 17:34:16,476 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 146.0) internal successors, (876), 6 states have internal predecessors, (876), 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 17:34:16,481 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 195.0) internal successors, (1365), 7 states have internal predecessors, (1365), 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 17:34:16,482 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 195.0) internal successors, (1365), 7 states have internal predecessors, (1365), 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 17:34:16,483 INFO L186 Difference]: Start difference. First operand has 168 places, 162 transitions, 334 flow. Second operand 6 states and 876 transitions.
[2021-11-13 17:34:16,483 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 169 places, 181 transitions, 506 flow
[2021-11-13 17:34:16,486 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 169 places, 181 transitions, 506 flow, removed 0 selfloop flow, removed 0 redundant places.
[2021-11-13 17:34:16,493 INFO L242 Difference]: Finished difference. Result has 170 places, 163 transitions, 352 flow
[2021-11-13 17:34:16,494 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=195, PETRI_DIFFERENCE_MINUEND_FLOW=334, PETRI_DIFFERENCE_MINUEND_PLACES=164, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=162, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=157, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=352, PETRI_PLACES=170, PETRI_TRANSITIONS=163}
[2021-11-13 17:34:16,495 INFO L334 CegarLoopForPetriNet]: 177 programPoint places, -7 predicate places.
[2021-11-13 17:34:16,495 INFO L470 AbstractCegarLoop]: Abstraction has has 170 places, 163 transitions, 352 flow
[2021-11-13 17:34:16,496 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 141.0) internal successors, (846), 6 states have internal predecessors, (846), 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 17:34:16,497 INFO L246 CegarLoopForPetriNet]: Found error trace
[2021-11-13 17:34:16,497 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:34:16,497 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2021-11-13 17:34:16,497 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 2 more)] ===
[2021-11-13 17:34:16,499 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-11-13 17:34:16,499 INFO L85 PathProgramCache]: Analyzing trace with hash -1927208558, now seen corresponding path program 1 times
[2021-11-13 17:34:16,500 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-11-13 17:34:16,500 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1404096508]
[2021-11-13 17:34:16,500 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-11-13 17:34:16,500 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2021-11-13 17:34:16,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-11-13 17:34:16,692 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-11-13 17:34:16,693 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-11-13 17:34:16,694 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1404096508]
[2021-11-13 17:34:16,694 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1404096508] provided 1 perfect and 0 imperfect interpolant sequences
[2021-11-13 17:34:16,694 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2021-11-13 17:34:16,694 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2021-11-13 17:34:16,695 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1757894586]
[2021-11-13 17:34:16,695 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2021-11-13 17:34:16,697 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2021-11-13 17:34:16,697 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-11-13 17:34:16,698 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2021-11-13 17:34:16,698 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42
[2021-11-13 17:34:16,700 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 143 out of 195
[2021-11-13 17:34:16,702 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 170 places, 163 transitions, 352 flow. Second operand has 7 states, 7 states have (on average 147.57142857142858) internal successors, (1033), 7 states have internal predecessors, (1033), 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 17:34:16,702 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2021-11-13 17:34:16,702 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 143 of 195
[2021-11-13 17:34:16,702 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2021-11-13 17:34:19,430 INFO L129 PetriNetUnfolder]: 9579/16177 cut-off events.
[2021-11-13 17:34:19,431 INFO L130 PetriNetUnfolder]: For 2270/2270 co-relation queries the response was YES.
[2021-11-13 17:34:19,514 INFO L84 FinitePrefix]: Finished finitePrefix Result has 31815 conditions, 16177 events. 9579/16177 cut-off events. For 2270/2270 co-relation queries the response was YES. Maximal size of possible extension queue 912. Compared 131503 event pairs, 7218 based on Foata normal form. 249/13682 useless extension candidates. Maximal degree in co-relation 31810. Up to 10634 conditions per place.
[2021-11-13 17:34:19,753 INFO L132 encePairwiseOnDemand]: 186/195 looper letters, 41 selfloop transitions, 6 changer transitions 35/202 dead transitions.
[2021-11-13 17:34:19,753 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 177 places, 202 transitions, 608 flow
[2021-11-13 17:34:19,754 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2021-11-13 17:34:19,754 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states.
[2021-11-13 17:34:19,758 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 1226 transitions.
[2021-11-13 17:34:19,759 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7858974358974359
[2021-11-13 17:34:19,759 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 1226 transitions.
[2021-11-13 17:34:19,759 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 1226 transitions.
[2021-11-13 17:34:19,761 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic.
[2021-11-13 17:34:19,761 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 1226 transitions.
[2021-11-13 17:34:19,765 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 153.25) internal successors, (1226), 8 states have internal predecessors, (1226), 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 17:34:19,770 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 195.0) internal successors, (1755), 9 states have internal predecessors, (1755), 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 17:34:19,772 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 195.0) internal successors, (1755), 9 states have internal predecessors, (1755), 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 17:34:19,772 INFO L186 Difference]: Start difference. First operand has 170 places, 163 transitions, 352 flow. Second operand 8 states and 1226 transitions.
[2021-11-13 17:34:19,773 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 177 places, 202 transitions, 608 flow
[2021-11-13 17:34:19,777 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 173 places, 202 transitions, 599 flow, removed 0 selfloop flow, removed 4 redundant places.
[2021-11-13 17:34:19,784 INFO L242 Difference]: Finished difference. Result has 176 places, 164 transitions, 368 flow
[2021-11-13 17:34:19,785 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=195, PETRI_DIFFERENCE_MINUEND_FLOW=344, PETRI_DIFFERENCE_MINUEND_PLACES=166, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=163, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=157, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=368, PETRI_PLACES=176, PETRI_TRANSITIONS=164}
[2021-11-13 17:34:19,790 INFO L334 CegarLoopForPetriNet]: 177 programPoint places, -1 predicate places.
[2021-11-13 17:34:19,791 INFO L470 AbstractCegarLoop]: Abstraction has has 176 places, 164 transitions, 368 flow
[2021-11-13 17:34:19,795 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 147.57142857142858) internal successors, (1033), 7 states have internal predecessors, (1033), 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 17:34:19,795 INFO L246 CegarLoopForPetriNet]: Found error trace
[2021-11-13 17:34:19,796 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:34:19,796 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2021-11-13 17:34:19,796 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 2 more)] ===
[2021-11-13 17:34:19,798 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-11-13 17:34:19,798 INFO L85 PathProgramCache]: Analyzing trace with hash -1190333191, now seen corresponding path program 1 times
[2021-11-13 17:34:19,798 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-11-13 17:34:19,799 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [824555696]
[2021-11-13 17:34:19,800 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-11-13 17:34:19,800 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2021-11-13 17:34:19,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-11-13 17:34:19,990 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked.
[2021-11-13 17:34:19,991 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-11-13 17:34:19,991 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [824555696]
[2021-11-13 17:34:19,991 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [824555696] provided 0 perfect and 1 imperfect interpolant sequences
[2021-11-13 17:34:19,996 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1080571189]
[2021-11-13 17:34:19,996 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-11-13 17:34:19,996 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2021-11-13 17:34:19,997 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e985cc7-c95a-4813-94bc-ff4e92e70414/bin/uautomizer-YU5uOKAj3y/z3
[2021-11-13 17:34:19,999 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e985cc7-c95a-4813-94bc-ff4e92e70414/bin/uautomizer-YU5uOKAj3y/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2021-11-13 17:34:20,023 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e985cc7-c95a-4813-94bc-ff4e92e70414/bin/uautomizer-YU5uOKAj3y/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process
[2021-11-13 17:34:20,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-11-13 17:34:20,147 INFO L263 TraceCheckSpWp]: Trace formula consists of 363 conjuncts, 6 conjunts are in the unsatisfiable core
[2021-11-13 17:34:20,157 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2021-11-13 17:34:20,653 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked.
[2021-11-13 17:34:20,653 INFO L328 TraceCheckSpWp]: Computing backward predicates...
[2021-11-13 17:34:21,180 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked.
[2021-11-13 17:34:21,181 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1080571189] provided 1 perfect and 1 imperfect interpolant sequences
[2021-11-13 17:34:21,181 INFO L186 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences.
[2021-11-13 17:34:21,181 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [8, 7] total 14
[2021-11-13 17:34:21,182 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [290408692]
[2021-11-13 17:34:21,182 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2021-11-13 17:34:21,183 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2021-11-13 17:34:21,184 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-11-13 17:34:21,184 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2021-11-13 17:34:21,185 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=130, Unknown=0, NotChecked=0, Total=182
[2021-11-13 17:34:21,187 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 143 out of 195
[2021-11-13 17:34:21,189 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 176 places, 164 transitions, 368 flow. Second operand has 7 states, 7 states have (on average 147.85714285714286) internal successors, (1035), 7 states have internal predecessors, (1035), 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 17:34:21,189 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2021-11-13 17:34:21,189 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 143 of 195
[2021-11-13 17:34:21,190 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2021-11-13 17:34:23,131 INFO L129 PetriNetUnfolder]: 7859/14138 cut-off events.
[2021-11-13 17:34:23,131 INFO L130 PetriNetUnfolder]: For 1317/1688 co-relation queries the response was YES.
[2021-11-13 17:34:23,214 INFO L84 FinitePrefix]: Finished finitePrefix Result has 26955 conditions, 14138 events. 7859/14138 cut-off events. For 1317/1688 co-relation queries the response was YES. Maximal size of possible extension queue 838. Compared 118609 event pairs, 5749 based on Foata normal form. 371/12184 useless extension candidates. Maximal degree in co-relation 26947. Up to 4982 conditions per place.
[2021-11-13 17:34:23,294 INFO L132 encePairwiseOnDemand]: 187/195 looper letters, 52 selfloop transitions, 7 changer transitions 0/180 dead transitions.
[2021-11-13 17:34:23,294 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 180 places, 180 transitions, 526 flow
[2021-11-13 17:34:23,294 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states.
[2021-11-13 17:34:23,294 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states.
[2021-11-13 17:34:23,297 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 1060 transitions.
[2021-11-13 17:34:23,298 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7765567765567766
[2021-11-13 17:34:23,299 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 1060 transitions.
[2021-11-13 17:34:23,299 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 1060 transitions.
[2021-11-13 17:34:23,300 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic.
[2021-11-13 17:34:23,300 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 1060 transitions.
[2021-11-13 17:34:23,303 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 151.42857142857142) internal successors, (1060), 7 states have internal predecessors, (1060), 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 17:34:23,307 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 195.0) internal successors, (1560), 8 states have internal predecessors, (1560), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-11-13 17:34:23,309 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 195.0) internal successors, (1560), 8 states have internal predecessors, (1560), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-11-13 17:34:23,309 INFO L186 Difference]: Start difference. First operand has 176 places, 164 transitions, 368 flow. Second operand 7 states and 1060 transitions.
[2021-11-13 17:34:23,309 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 180 places, 180 transitions, 526 flow
[2021-11-13 17:34:23,315 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 174 places, 180 transitions, 510 flow, removed 3 selfloop flow, removed 6 redundant places.
[2021-11-13 17:34:23,318 INFO L242 Difference]: Finished difference. Result has 177 places, 166 transitions, 387 flow
[2021-11-13 17:34:23,319 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=195, PETRI_DIFFERENCE_MINUEND_FLOW=354, PETRI_DIFFERENCE_MINUEND_PLACES=168, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=164, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=157, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=387, PETRI_PLACES=177, PETRI_TRANSITIONS=166}
[2021-11-13 17:34:23,319 INFO L334 CegarLoopForPetriNet]: 177 programPoint places, 0 predicate places.
[2021-11-13 17:34:23,319 INFO L470 AbstractCegarLoop]: Abstraction has has 177 places, 166 transitions, 387 flow
[2021-11-13 17:34:23,320 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 147.85714285714286) internal successors, (1035), 7 states have internal predecessors, (1035), 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 17:34:23,320 INFO L246 CegarLoopForPetriNet]: Found error trace
[2021-11-13 17:34:23,321 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:34:23,360 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e985cc7-c95a-4813-94bc-ff4e92e70414/bin/uautomizer-YU5uOKAj3y/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0
[2021-11-13 17:34:23,536 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e985cc7-c95a-4813-94bc-ff4e92e70414/bin/uautomizer-YU5uOKAj3y/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2021-11-13 17:34:23,537 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 2 more)] ===
[2021-11-13 17:34:23,537 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-11-13 17:34:23,537 INFO L85 PathProgramCache]: Analyzing trace with hash 2134086853, now seen corresponding path program 1 times
[2021-11-13 17:34:23,538 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-11-13 17:34:23,538 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [806164224]
[2021-11-13 17:34:23,538 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-11-13 17:34:23,538 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2021-11-13 17:34:23,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-11-13 17:34:23,651 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked.
[2021-11-13 17:34:23,652 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-11-13 17:34:23,652 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [806164224]
[2021-11-13 17:34:23,652 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [806164224] provided 0 perfect and 1 imperfect interpolant sequences
[2021-11-13 17:34:23,652 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [131449205]
[2021-11-13 17:34:23,652 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-11-13 17:34:23,653 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2021-11-13 17:34:23,653 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e985cc7-c95a-4813-94bc-ff4e92e70414/bin/uautomizer-YU5uOKAj3y/z3
[2021-11-13 17:34:23,654 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e985cc7-c95a-4813-94bc-ff4e92e70414/bin/uautomizer-YU5uOKAj3y/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2021-11-13 17:34:23,673 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e985cc7-c95a-4813-94bc-ff4e92e70414/bin/uautomizer-YU5uOKAj3y/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process
[2021-11-13 17:34:23,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-11-13 17:34:23,772 INFO L263 TraceCheckSpWp]: Trace formula consists of 370 conjuncts, 6 conjunts are in the unsatisfiable core
[2021-11-13 17:34:23,777 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2021-11-13 17:34:24,260 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked.
[2021-11-13 17:34:24,260 INFO L328 TraceCheckSpWp]: Computing backward predicates...
[2021-11-13 17:34:24,774 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked.
[2021-11-13 17:34:24,774 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [131449205] provided 1 perfect and 1 imperfect interpolant sequences
[2021-11-13 17:34:24,774 INFO L186 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences.
[2021-11-13 17:34:24,775 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [8, 7] total 14
[2021-11-13 17:34:24,775 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [710568092]
[2021-11-13 17:34:24,775 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2021-11-13 17:34:24,776 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2021-11-13 17:34:24,776 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-11-13 17:34:24,777 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2021-11-13 17:34:24,777 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=130, Unknown=0, NotChecked=0, Total=182
[2021-11-13 17:34:24,779 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 143 out of 195
[2021-11-13 17:34:24,781 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 177 places, 166 transitions, 387 flow. Second operand has 7 states, 7 states have (on average 148.14285714285714) internal successors, (1037), 7 states have internal predecessors, (1037), 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 17:34:24,781 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2021-11-13 17:34:24,781 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 143 of 195
[2021-11-13 17:34:24,781 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2021-11-13 17:34:26,329 INFO L129 PetriNetUnfolder]: 8398/12890 cut-off events.
[2021-11-13 17:34:26,329 INFO L130 PetriNetUnfolder]: For 2831/4488 co-relation queries the response was YES.
[2021-11-13 17:34:26,371 INFO L84 FinitePrefix]: Finished finitePrefix Result has 27295 conditions, 12890 events. 8398/12890 cut-off events. For 2831/4488 co-relation queries the response was YES. Maximal size of possible extension queue 712. Compared 89345 event pairs, 3115 based on Foata normal form. 1657/12787 useless extension candidates. Maximal degree in co-relation 27286. Up to 5611 conditions per place.
[2021-11-13 17:34:26,450 INFO L132 encePairwiseOnDemand]: 187/195 looper letters, 54 selfloop transitions, 7 changer transitions 0/182 dead transitions.
[2021-11-13 17:34:26,451 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 183 places, 182 transitions, 555 flow
[2021-11-13 17:34:26,451 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states.
[2021-11-13 17:34:26,451 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states.
[2021-11-13 17:34:26,454 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 1060 transitions.
[2021-11-13 17:34:26,455 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7765567765567766
[2021-11-13 17:34:26,455 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 1060 transitions.
[2021-11-13 17:34:26,455 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 1060 transitions.
[2021-11-13 17:34:26,456 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic.
[2021-11-13 17:34:26,456 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 1060 transitions.
[2021-11-13 17:34:26,459 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 151.42857142857142) internal successors, (1060), 7 states have internal predecessors, (1060), 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 17:34:26,462 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 195.0) internal successors, (1560), 8 states have internal predecessors, (1560), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-11-13 17:34:26,463 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 195.0) internal successors, (1560), 8 states have internal predecessors, (1560), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-11-13 17:34:26,463 INFO L186 Difference]: Start difference. First operand has 177 places, 166 transitions, 387 flow. Second operand 7 states and 1060 transitions.
[2021-11-13 17:34:26,463 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 183 places, 182 transitions, 555 flow
[2021-11-13 17:34:26,465 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 179 places, 182 transitions, 546 flow, removed 0 selfloop flow, removed 4 redundant places.
[2021-11-13 17:34:26,468 INFO L242 Difference]: Finished difference. Result has 181 places, 167 transitions, 406 flow
[2021-11-13 17:34:26,469 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=195, PETRI_DIFFERENCE_MINUEND_FLOW=379, PETRI_DIFFERENCE_MINUEND_PLACES=173, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=166, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=159, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=406, PETRI_PLACES=181, PETRI_TRANSITIONS=167}
[2021-11-13 17:34:26,470 INFO L334 CegarLoopForPetriNet]: 177 programPoint places, 4 predicate places.
[2021-11-13 17:34:26,470 INFO L470 AbstractCegarLoop]: Abstraction has has 181 places, 167 transitions, 406 flow
[2021-11-13 17:34:26,470 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 148.14285714285714) internal successors, (1037), 7 states have internal predecessors, (1037), 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 17:34:26,471 INFO L246 CegarLoopForPetriNet]: Found error trace
[2021-11-13 17:34:26,471 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:34:26,509 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e985cc7-c95a-4813-94bc-ff4e92e70414/bin/uautomizer-YU5uOKAj3y/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0
[2021-11-13 17:34:26,692 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e985cc7-c95a-4813-94bc-ff4e92e70414/bin/uautomizer-YU5uOKAj3y/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2021-11-13 17:34:26,693 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 2 more)] ===
[2021-11-13 17:34:26,693 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-11-13 17:34:26,693 INFO L85 PathProgramCache]: Analyzing trace with hash 308230845, now seen corresponding path program 1 times
[2021-11-13 17:34:26,693 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-11-13 17:34:26,694 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [607300696]
[2021-11-13 17:34:26,694 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-11-13 17:34:26,694 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2021-11-13 17:34:26,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-11-13 17:34:26,773 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked.
[2021-11-13 17:34:26,773 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-11-13 17:34:26,773 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [607300696]
[2021-11-13 17:34:26,773 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [607300696] provided 0 perfect and 1 imperfect interpolant sequences
[2021-11-13 17:34:26,773 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [766870082]
[2021-11-13 17:34:26,774 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-11-13 17:34:26,774 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2021-11-13 17:34:26,774 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e985cc7-c95a-4813-94bc-ff4e92e70414/bin/uautomizer-YU5uOKAj3y/z3
[2021-11-13 17:34:26,775 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e985cc7-c95a-4813-94bc-ff4e92e70414/bin/uautomizer-YU5uOKAj3y/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2021-11-13 17:34:26,776 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e985cc7-c95a-4813-94bc-ff4e92e70414/bin/uautomizer-YU5uOKAj3y/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process
[2021-11-13 17:34:26,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-11-13 17:34:26,885 INFO L263 TraceCheckSpWp]: Trace formula consists of 377 conjuncts, 6 conjunts are in the unsatisfiable core
[2021-11-13 17:34:26,889 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2021-11-13 17:34:27,259 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked.
[2021-11-13 17:34:27,260 INFO L328 TraceCheckSpWp]: Computing backward predicates...
[2021-11-13 17:34:27,907 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked.
[2021-11-13 17:34:27,907 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [766870082] provided 1 perfect and 1 imperfect interpolant sequences
[2021-11-13 17:34:27,907 INFO L186 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences.
[2021-11-13 17:34:27,907 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [6, 7] total 14
[2021-11-13 17:34:27,907 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [361994853]
[2021-11-13 17:34:27,908 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2021-11-13 17:34:27,908 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2021-11-13 17:34:27,908 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-11-13 17:34:27,908 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2021-11-13 17:34:27,909 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=133, Unknown=0, NotChecked=0, Total=182
[2021-11-13 17:34:27,913 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 143 out of 195
[2021-11-13 17:34:27,916 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 181 places, 167 transitions, 406 flow. Second operand has 7 states, 7 states have (on average 148.42857142857142) internal successors, (1039), 7 states have internal predecessors, (1039), 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 17:34:27,916 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2021-11-13 17:34:27,916 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 143 of 195
[2021-11-13 17:34:27,917 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2021-11-13 17:34:29,798 INFO L129 PetriNetUnfolder]: 8242/16357 cut-off events.
[2021-11-13 17:34:29,799 INFO L130 PetriNetUnfolder]: For 5462/8567 co-relation queries the response was YES.
[2021-11-13 17:34:29,862 INFO L84 FinitePrefix]: Finished finitePrefix Result has 32389 conditions, 16357 events. 8242/16357 cut-off events. For 5462/8567 co-relation queries the response was YES. Maximal size of possible extension queue 898. Compared 150366 event pairs, 3210 based on Foata normal form. 3105/18886 useless extension candidates. Maximal degree in co-relation 32378. Up to 6073 conditions per place.
[2021-11-13 17:34:29,947 INFO L132 encePairwiseOnDemand]: 187/195 looper letters, 57 selfloop transitions, 7 changer transitions 0/185 dead transitions.
[2021-11-13 17:34:29,947 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 187 places, 185 transitions, 591 flow
[2021-11-13 17:34:29,948 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states.
[2021-11-13 17:34:29,948 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states.
[2021-11-13 17:34:29,952 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 1061 transitions.
[2021-11-13 17:34:29,954 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7772893772893773
[2021-11-13 17:34:29,954 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 1061 transitions.
[2021-11-13 17:34:29,954 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 1061 transitions.
[2021-11-13 17:34:29,957 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic.
[2021-11-13 17:34:29,957 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 1061 transitions.
[2021-11-13 17:34:29,961 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 151.57142857142858) internal successors, (1061), 7 states have internal predecessors, (1061), 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 17:34:29,968 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 195.0) internal successors, (1560), 8 states have internal predecessors, (1560), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-11-13 17:34:29,969 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 195.0) internal successors, (1560), 8 states have internal predecessors, (1560), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-11-13 17:34:29,969 INFO L186 Difference]: Start difference. First operand has 181 places, 167 transitions, 406 flow. Second operand 7 states and 1061 transitions.
[2021-11-13 17:34:29,969 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 187 places, 185 transitions, 591 flow
[2021-11-13 17:34:29,976 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 182 places, 185 transitions, 580 flow, removed 0 selfloop flow, removed 5 redundant places.
[2021-11-13 17:34:29,980 INFO L242 Difference]: Finished difference. Result has 184 places, 168 transitions, 423 flow
[2021-11-13 17:34:29,981 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=195, PETRI_DIFFERENCE_MINUEND_FLOW=396, PETRI_DIFFERENCE_MINUEND_PLACES=176, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=167, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=160, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=423, PETRI_PLACES=184, PETRI_TRANSITIONS=168}
[2021-11-13 17:34:29,984 INFO L334 CegarLoopForPetriNet]: 177 programPoint places, 7 predicate places.
[2021-11-13 17:34:29,984 INFO L470 AbstractCegarLoop]: Abstraction has has 184 places, 168 transitions, 423 flow
[2021-11-13 17:34:29,986 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 148.42857142857142) internal successors, (1039), 7 states have internal predecessors, (1039), 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 17:34:29,986 INFO L246 CegarLoopForPetriNet]: Found error trace
[2021-11-13 17:34:29,986 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:34:30,007 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e985cc7-c95a-4813-94bc-ff4e92e70414/bin/uautomizer-YU5uOKAj3y/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0
[2021-11-13 17:34:30,187 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e985cc7-c95a-4813-94bc-ff4e92e70414/bin/uautomizer-YU5uOKAj3y/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5
[2021-11-13 17:34:30,187 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 2 more)] ===
[2021-11-13 17:34:30,187 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-11-13 17:34:30,188 INFO L85 PathProgramCache]: Analyzing trace with hash 25711741, now seen corresponding path program 1 times
[2021-11-13 17:34:30,188 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-11-13 17:34:30,188 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1441990262]
[2021-11-13 17:34:30,188 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-11-13 17:34:30,188 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2021-11-13 17:34:30,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-11-13 17:34:30,446 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked.
[2021-11-13 17:34:30,446 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-11-13 17:34:30,447 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1441990262]
[2021-11-13 17:34:30,447 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1441990262] provided 0 perfect and 1 imperfect interpolant sequences
[2021-11-13 17:34:30,448 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [351589857]
[2021-11-13 17:34:30,448 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-11-13 17:34:30,448 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2021-11-13 17:34:30,448 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e985cc7-c95a-4813-94bc-ff4e92e70414/bin/uautomizer-YU5uOKAj3y/z3
[2021-11-13 17:34:30,449 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e985cc7-c95a-4813-94bc-ff4e92e70414/bin/uautomizer-YU5uOKAj3y/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2021-11-13 17:34:30,472 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e985cc7-c95a-4813-94bc-ff4e92e70414/bin/uautomizer-YU5uOKAj3y/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process
[2021-11-13 17:34:30,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-11-13 17:34:30,582 INFO L263 TraceCheckSpWp]: Trace formula consists of 389 conjuncts, 27 conjunts are in the unsatisfiable core
[2021-11-13 17:34:30,585 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2021-11-13 17:34:31,225 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7
[2021-11-13 17:34:31,357 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked.
[2021-11-13 17:34:31,357 INFO L328 TraceCheckSpWp]: Computing backward predicates...
[2021-11-13 17:34:32,159 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked.
[2021-11-13 17:34:32,160 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [351589857] provided 1 perfect and 1 imperfect interpolant sequences
[2021-11-13 17:34:32,160 INFO L186 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences.
[2021-11-13 17:34:32,160 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [8, 16] total 26
[2021-11-13 17:34:32,161 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1867428450]
[2021-11-13 17:34:32,161 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2021-11-13 17:34:32,161 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states
[2021-11-13 17:34:32,161 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-11-13 17:34:32,162 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants.
[2021-11-13 17:34:32,162 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=99, Invalid=551, Unknown=0, NotChecked=0, Total=650
[2021-11-13 17:34:32,164 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 120 out of 195
[2021-11-13 17:34:32,167 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 184 places, 168 transitions, 423 flow. Second operand has 10 states, 10 states have (on average 126.1) internal successors, (1261), 10 states have internal predecessors, (1261), 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 17:34:32,167 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2021-11-13 17:34:32,167 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 120 of 195
[2021-11-13 17:34:32,168 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2021-11-13 17:34:43,503 INFO L129 PetriNetUnfolder]: 44857/79203 cut-off events.
[2021-11-13 17:34:43,503 INFO L130 PetriNetUnfolder]: For 30395/30395 co-relation queries the response was YES.
[2021-11-13 17:34:43,985 INFO L84 FinitePrefix]: Finished finitePrefix Result has 166756 conditions, 79203 events. 44857/79203 cut-off events. For 30395/30395 co-relation queries the response was YES. Maximal size of possible extension queue 3346. Compared 788941 event pairs, 9151 based on Foata normal form. 2/77446 useless extension candidates. Maximal degree in co-relation 166743. Up to 15827 conditions per place.
[2021-11-13 17:34:44,239 INFO L132 encePairwiseOnDemand]: 179/195 looper letters, 231 selfloop transitions, 37 changer transitions 38/411 dead transitions.
[2021-11-13 17:34:44,240 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 198 places, 411 transitions, 1757 flow
[2021-11-13 17:34:44,240 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states.
[2021-11-13 17:34:44,240 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states.
[2021-11-13 17:34:44,246 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 2092 transitions.
[2021-11-13 17:34:44,248 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7152136752136752
[2021-11-13 17:34:44,248 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 2092 transitions.
[2021-11-13 17:34:44,248 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 2092 transitions.
[2021-11-13 17:34:44,250 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic.
[2021-11-13 17:34:44,250 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 2092 transitions.
[2021-11-13 17:34:44,257 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 139.46666666666667) internal successors, (2092), 15 states have internal predecessors, (2092), 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 17:34:44,264 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 195.0) internal successors, (3120), 16 states have internal predecessors, (3120), 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 17:34:44,266 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 195.0) internal successors, (3120), 16 states have internal predecessors, (3120), 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 17:34:44,267 INFO L186 Difference]: Start difference. First operand has 184 places, 168 transitions, 423 flow. Second operand 15 states and 2092 transitions.
[2021-11-13 17:34:44,267 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 198 places, 411 transitions, 1757 flow
[2021-11-13 17:34:44,856 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 193 places, 411 transitions, 1747 flow, removed 0 selfloop flow, removed 5 redundant places.
[2021-11-13 17:34:44,862 INFO L242 Difference]: Finished difference. Result has 207 places, 208 transitions, 713 flow
[2021-11-13 17:34:44,862 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=195, PETRI_DIFFERENCE_MINUEND_FLOW=413, PETRI_DIFFERENCE_MINUEND_PLACES=179, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=168, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=155, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=713, PETRI_PLACES=207, PETRI_TRANSITIONS=208}
[2021-11-13 17:34:44,863 INFO L334 CegarLoopForPetriNet]: 177 programPoint places, 30 predicate places.
[2021-11-13 17:34:44,863 INFO L470 AbstractCegarLoop]: Abstraction has has 207 places, 208 transitions, 713 flow
[2021-11-13 17:34:44,864 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 126.1) internal successors, (1261), 10 states have internal predecessors, (1261), 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 17:34:44,865 INFO L246 CegarLoopForPetriNet]: Found error trace
[2021-11-13 17:34:44,865 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:34:44,904 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e985cc7-c95a-4813-94bc-ff4e92e70414/bin/uautomizer-YU5uOKAj3y/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0
[2021-11-13 17:34:45,080 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e985cc7-c95a-4813-94bc-ff4e92e70414/bin/uautomizer-YU5uOKAj3y/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2021-11-13 17:34:45,080 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 2 more)] ===
[2021-11-13 17:34:45,081 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-11-13 17:34:45,081 INFO L85 PathProgramCache]: Analyzing trace with hash -563195497, now seen corresponding path program 2 times
[2021-11-13 17:34:45,081 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-11-13 17:34:45,081 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [944195442]
[2021-11-13 17:34:45,081 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-11-13 17:34:45,081 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2021-11-13 17:34:45,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-11-13 17:34:45,303 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked.
[2021-11-13 17:34:45,304 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-11-13 17:34:45,304 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [944195442]
[2021-11-13 17:34:45,304 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [944195442] provided 0 perfect and 1 imperfect interpolant sequences
[2021-11-13 17:34:45,304 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [514803528]
[2021-11-13 17:34:45,305 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1
[2021-11-13 17:34:45,305 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2021-11-13 17:34:45,305 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e985cc7-c95a-4813-94bc-ff4e92e70414/bin/uautomizer-YU5uOKAj3y/z3
[2021-11-13 17:34:45,306 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e985cc7-c95a-4813-94bc-ff4e92e70414/bin/uautomizer-YU5uOKAj3y/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2021-11-13 17:34:45,310 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e985cc7-c95a-4813-94bc-ff4e92e70414/bin/uautomizer-YU5uOKAj3y/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process
[2021-11-13 17:34:45,432 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s)
[2021-11-13 17:34:45,432 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat
[2021-11-13 17:34:45,434 INFO L263 TraceCheckSpWp]: Trace formula consists of 389 conjuncts, 9 conjunts are in the unsatisfiable core
[2021-11-13 17:34:45,437 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2021-11-13 17:34:45,845 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked.
[2021-11-13 17:34:45,845 INFO L328 TraceCheckSpWp]: Computing backward predicates...
[2021-11-13 17:34:46,294 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked.
[2021-11-13 17:34:46,295 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [514803528] provided 0 perfect and 2 imperfect interpolant sequences
[2021-11-13 17:34:46,295 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2021-11-13 17:34:46,295 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 9
[2021-11-13 17:34:46,295 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1538296675]
[2021-11-13 17:34:46,296 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2021-11-13 17:34:46,296 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states
[2021-11-13 17:34:46,297 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-11-13 17:34:46,297 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants.
[2021-11-13 17:34:46,297 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72
[2021-11-13 17:34:46,299 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 145 out of 195
[2021-11-13 17:34:46,301 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 207 places, 208 transitions, 713 flow. Second operand has 9 states, 9 states have (on average 153.66666666666666) internal successors, (1383), 9 states have internal predecessors, (1383), 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 17:34:46,302 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2021-11-13 17:34:46,302 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 145 of 195
[2021-11-13 17:34:46,302 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2021-11-13 17:34:48,594 INFO L129 PetriNetUnfolder]: 5844/15067 cut-off events.
[2021-11-13 17:34:48,594 INFO L130 PetriNetUnfolder]: For 22395/24595 co-relation queries the response was YES.
[2021-11-13 17:34:48,739 INFO L84 FinitePrefix]: Finished finitePrefix Result has 39897 conditions, 15067 events. 5844/15067 cut-off events. For 22395/24595 co-relation queries the response was YES. Maximal size of possible extension queue 699. Compared 156401 event pairs, 967 based on Foata normal form. 204/14535 useless extension candidates. Maximal degree in co-relation 39871. Up to 4639 conditions per place.
[2021-11-13 17:34:48,816 INFO L132 encePairwiseOnDemand]: 189/195 looper letters, 103 selfloop transitions, 6 changer transitions 6/268 dead transitions.
[2021-11-13 17:34:48,816 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 209 places, 268 transitions, 1250 flow
[2021-11-13 17:34:48,816 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states.
[2021-11-13 17:34:48,816 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states.
[2021-11-13 17:34:48,819 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 1080 transitions.
[2021-11-13 17:34:48,820 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7912087912087912
[2021-11-13 17:34:48,820 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 1080 transitions.
[2021-11-13 17:34:48,820 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 1080 transitions.
[2021-11-13 17:34:48,821 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic.
[2021-11-13 17:34:48,821 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 1080 transitions.
[2021-11-13 17:34:48,824 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 154.28571428571428) internal successors, (1080), 7 states have internal predecessors, (1080), 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 17:34:48,828 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 195.0) internal successors, (1560), 8 states have internal predecessors, (1560), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-11-13 17:34:48,829 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 195.0) internal successors, (1560), 8 states have internal predecessors, (1560), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-11-13 17:34:48,829 INFO L186 Difference]: Start difference. First operand has 207 places, 208 transitions, 713 flow. Second operand 7 states and 1080 transitions.
[2021-11-13 17:34:48,830 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 209 places, 268 transitions, 1250 flow
[2021-11-13 17:34:48,998 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 205 places, 268 transitions, 1238 flow, removed 6 selfloop flow, removed 4 redundant places.
[2021-11-13 17:34:49,001 INFO L242 Difference]: Finished difference. Result has 209 places, 212 transitions, 757 flow
[2021-11-13 17:34:49,002 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=195, PETRI_DIFFERENCE_MINUEND_FLOW=705, PETRI_DIFFERENCE_MINUEND_PLACES=199, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=208, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=203, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=757, PETRI_PLACES=209, PETRI_TRANSITIONS=212}
[2021-11-13 17:34:49,002 INFO L334 CegarLoopForPetriNet]: 177 programPoint places, 32 predicate places.
[2021-11-13 17:34:49,003 INFO L470 AbstractCegarLoop]: Abstraction has has 209 places, 212 transitions, 757 flow
[2021-11-13 17:34:49,003 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 153.66666666666666) internal successors, (1383), 9 states have internal predecessors, (1383), 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 17:34:49,004 INFO L246 CegarLoopForPetriNet]: Found error trace
[2021-11-13 17:34:49,004 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:34:49,028 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e985cc7-c95a-4813-94bc-ff4e92e70414/bin/uautomizer-YU5uOKAj3y/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0
[2021-11-13 17:34:49,209 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e985cc7-c95a-4813-94bc-ff4e92e70414/bin/uautomizer-YU5uOKAj3y/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2021-11-13 17:34:49,209 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 2 more)] ===
[2021-11-13 17:34:49,210 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-11-13 17:34:49,210 INFO L85 PathProgramCache]: Analyzing trace with hash -1268319345, now seen corresponding path program 3 times
[2021-11-13 17:34:49,210 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-11-13 17:34:49,210 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1284370603]
[2021-11-13 17:34:49,210 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-11-13 17:34:49,211 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2021-11-13 17:34:49,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-11-13 17:34:49,766 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked.
[2021-11-13 17:34:49,766 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-11-13 17:34:49,766 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1284370603]
[2021-11-13 17:34:49,767 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1284370603] provided 0 perfect and 1 imperfect interpolant sequences
[2021-11-13 17:34:49,767 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [79413145]
[2021-11-13 17:34:49,767 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2
[2021-11-13 17:34:49,767 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2021-11-13 17:34:49,768 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e985cc7-c95a-4813-94bc-ff4e92e70414/bin/uautomizer-YU5uOKAj3y/z3
[2021-11-13 17:34:49,768 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e985cc7-c95a-4813-94bc-ff4e92e70414/bin/uautomizer-YU5uOKAj3y/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2021-11-13 17:34:49,788 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e985cc7-c95a-4813-94bc-ff4e92e70414/bin/uautomizer-YU5uOKAj3y/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process
[2021-11-13 17:34:50,038 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s)
[2021-11-13 17:34:50,038 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat
[2021-11-13 17:34:50,041 INFO L263 TraceCheckSpWp]: Trace formula consists of 389 conjuncts, 24 conjunts are in the unsatisfiable core
[2021-11-13 17:34:50,044 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2021-11-13 17:34:50,391 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7
[2021-11-13 17:34:50,477 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 43 treesize of output 25
[2021-11-13 17:34:50,629 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked.
[2021-11-13 17:34:50,629 INFO L328 TraceCheckSpWp]: Computing backward predicates...
[2021-11-13 17:34:51,021 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 58 treesize of output 34
[2021-11-13 17:34:51,372 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked.
[2021-11-13 17:34:51,372 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [79413145] provided 1 perfect and 1 imperfect interpolant sequences
[2021-11-13 17:34:51,372 INFO L186 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences.
[2021-11-13 17:34:51,373 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [10, 15] total 24
[2021-11-13 17:34:51,373 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [783708628]
[2021-11-13 17:34:51,373 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2021-11-13 17:34:51,374 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states
[2021-11-13 17:34:51,374 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-11-13 17:34:51,375 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants.
[2021-11-13 17:34:51,375 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=96, Invalid=456, Unknown=0, NotChecked=0, Total=552
[2021-11-13 17:34:51,378 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 125 out of 195
[2021-11-13 17:34:51,380 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 209 places, 212 transitions, 757 flow. Second operand has 9 states, 9 states have (on average 131.22222222222223) internal successors, (1181), 9 states have internal predecessors, (1181), 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 17:34:51,380 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2021-11-13 17:34:51,380 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 125 of 195
[2021-11-13 17:34:51,380 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand