./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/weaver/loop-tiling-eq.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_ba1821d1-e2ee-48c8-bf8d-6f49f60f7fb9/bin/uautomizer-YU5uOKAj3y/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba1821d1-e2ee-48c8-bf8d-6f49f60f7fb9/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_ba1821d1-e2ee-48c8-bf8d-6f49f60f7fb9/bin/uautomizer-YU5uOKAj3y/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba1821d1-e2ee-48c8-bf8d-6f49f60f7fb9/bin/uautomizer-YU5uOKAj3y/config/AutomizerReach.xml -i ../../sv-benchmarks/c/weaver/loop-tiling-eq.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba1821d1-e2ee-48c8-bf8d-6f49f60f7fb9/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_ba1821d1-e2ee-48c8-bf8d-6f49f60f7fb9/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 2bf204635285748ea2bd88f763410b9afff54eeccde3aa0a970ff723633af9c2
--- Real Ultimate output ---
This is Ultimate 0.2.1-dev-63182f1
[2021-11-13 18:39:24,061 INFO L177 SettingsManager]: Resetting all preferences to default values...
[2021-11-13 18:39:24,065 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values
[2021-11-13 18:39:24,134 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2021-11-13 18:39:24,135 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2021-11-13 18:39:24,141 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2021-11-13 18:39:24,143 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2021-11-13 18:39:24,148 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values
[2021-11-13 18:39:24,152 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values
[2021-11-13 18:39:24,159 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values
[2021-11-13 18:39:24,160 INFO L181 SettingsManager]: Resetting Sifa preferences to default values
[2021-11-13 18:39:24,163 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2021-11-13 18:39:24,163 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values
[2021-11-13 18:39:24,166 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values
[2021-11-13 18:39:24,169 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2021-11-13 18:39:24,181 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values
[2021-11-13 18:39:24,183 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2021-11-13 18:39:24,185 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2021-11-13 18:39:24,188 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2021-11-13 18:39:24,197 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values
[2021-11-13 18:39:24,200 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2021-11-13 18:39:24,202 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values
[2021-11-13 18:39:24,207 INFO L181 SettingsManager]: Resetting Referee preferences to default values
[2021-11-13 18:39:24,208 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values
[2021-11-13 18:39:24,222 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2021-11-13 18:39:24,223 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2021-11-13 18:39:24,223 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values
[2021-11-13 18:39:24,226 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values
[2021-11-13 18:39:24,227 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values
[2021-11-13 18:39:24,229 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring...
[2021-11-13 18:39:24,229 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values
[2021-11-13 18:39:24,230 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values
[2021-11-13 18:39:24,233 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values
[2021-11-13 18:39:24,235 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values
[2021-11-13 18:39:24,237 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2021-11-13 18:39:24,237 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values
[2021-11-13 18:39:24,238 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring...
[2021-11-13 18:39:24,238 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring...
[2021-11-13 18:39:24,239 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values
[2021-11-13 18:39:24,240 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values
[2021-11-13 18:39:24,241 INFO L188 SettingsManager]: Finished resetting all preferences to default values...
[2021-11-13 18:39:24,242 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba1821d1-e2ee-48c8-bf8d-6f49f60f7fb9/bin/uautomizer-YU5uOKAj3y/config/svcomp-Reach-32bit-Automizer_Default.epf
[2021-11-13 18:39:24,298 INFO L113 SettingsManager]: Loading preferences was successful
[2021-11-13 18:39:24,298 INFO L115 SettingsManager]: Preferences different from defaults after loading the file:
[2021-11-13 18:39:24,299 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2021-11-13 18:39:24,300 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2021-11-13 18:39:24,301 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2021-11-13 18:39:24,301 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2021-11-13 18:39:24,302 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2021-11-13 18:39:24,302 INFO L138 SettingsManager]: * Create parallel compositions if possible=false
[2021-11-13 18:39:24,303 INFO L138 SettingsManager]: * Use SBE=true
[2021-11-13 18:39:24,303 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2021-11-13 18:39:24,304 INFO L138 SettingsManager]: * sizeof long=4
[2021-11-13 18:39:24,305 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true
[2021-11-13 18:39:24,305 INFO L138 SettingsManager]: * sizeof POINTER=4
[2021-11-13 18:39:24,305 INFO L138 SettingsManager]: * Check division by zero=IGNORE
[2021-11-13 18:39:24,306 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE
[2021-11-13 18:39:24,306 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE
[2021-11-13 18:39:24,306 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE
[2021-11-13 18:39:24,306 INFO L138 SettingsManager]: * sizeof long double=12
[2021-11-13 18:39:24,307 INFO L138 SettingsManager]: * Check if freed pointer was valid=false
[2021-11-13 18:39:24,307 INFO L138 SettingsManager]: * Use constant arrays=true
[2021-11-13 18:39:24,307 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE
[2021-11-13 18:39:24,308 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2021-11-13 18:39:24,308 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements
[2021-11-13 18:39:24,308 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode
[2021-11-13 18:39:24,308 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2021-11-13 18:39:24,309 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2021-11-13 18:39:24,309 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP
[2021-11-13 18:39:24,309 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2021-11-13 18:39:24,310 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL
[2021-11-13 18:39:24,310 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2021-11-13 18:39:24,310 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF
[2021-11-13 18:39:24,310 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET
[2021-11-13 18:39:24,311 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2021-11-13 18:39:24,311 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE
[2021-11-13 18:39:24,311 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_ba1821d1-e2ee-48c8-bf8d-6f49f60f7fb9/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$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba1821d1-e2ee-48c8-bf8d-6f49f60f7fb9/bin/uautomizer-YU5uOKAj3y
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) )
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2bf204635285748ea2bd88f763410b9afff54eeccde3aa0a970ff723633af9c2
[2021-11-13 18:39:24,691 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp
[2021-11-13 18:39:24,718 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2021-11-13 18:39:24,721 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2021-11-13 18:39:24,723 INFO L271 PluginConnector]: Initializing CDTParser...
[2021-11-13 18:39:24,724 INFO L275 PluginConnector]: CDTParser initialized
[2021-11-13 18:39:24,726 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba1821d1-e2ee-48c8-bf8d-6f49f60f7fb9/bin/uautomizer-YU5uOKAj3y/../../sv-benchmarks/c/weaver/loop-tiling-eq.wvr.c
[2021-11-13 18:39:24,824 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba1821d1-e2ee-48c8-bf8d-6f49f60f7fb9/bin/uautomizer-YU5uOKAj3y/data/b274b844a/b37c142236a845629ce581a01e1e20ab/FLAG4c9376f46
[2021-11-13 18:39:25,498 INFO L306 CDTParser]: Found 1 translation units.
[2021-11-13 18:39:25,498 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba1821d1-e2ee-48c8-bf8d-6f49f60f7fb9/sv-benchmarks/c/weaver/loop-tiling-eq.wvr.c
[2021-11-13 18:39:25,516 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba1821d1-e2ee-48c8-bf8d-6f49f60f7fb9/bin/uautomizer-YU5uOKAj3y/data/b274b844a/b37c142236a845629ce581a01e1e20ab/FLAG4c9376f46
[2021-11-13 18:39:25,806 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba1821d1-e2ee-48c8-bf8d-6f49f60f7fb9/bin/uautomizer-YU5uOKAj3y/data/b274b844a/b37c142236a845629ce581a01e1e20ab
[2021-11-13 18:39:25,810 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2021-11-13 18:39:25,812 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements.
[2021-11-13 18:39:25,814 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2021-11-13 18:39:25,815 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator...
[2021-11-13 18:39:25,819 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized
[2021-11-13 18:39:25,820 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 06:39:25" (1/1) ...
[2021-11-13 18:39:25,822 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2a7989d9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:39:25, skipping insertion in model container
[2021-11-13 18:39:25,822 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 06:39:25" (1/1) ...
[2021-11-13 18:39:25,841 INFO L145 MainTranslator]: Starting translation in SV-COMP mode
[2021-11-13 18:39:25,880 INFO L178 MainTranslator]: Built tables and reachable declarations
[2021-11-13 18:39:26,078 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_ba1821d1-e2ee-48c8-bf8d-6f49f60f7fb9/sv-benchmarks/c/weaver/loop-tiling-eq.wvr.c[2618,2631]
[2021-11-13 18:39:26,103 INFO L206 PostProcessor]: Analyzing one entry point: main
[2021-11-13 18:39:26,127 INFO L203 MainTranslator]: Completed pre-run
[2021-11-13 18:39:26,168 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_ba1821d1-e2ee-48c8-bf8d-6f49f60f7fb9/sv-benchmarks/c/weaver/loop-tiling-eq.wvr.c[2618,2631]
[2021-11-13 18:39:26,178 INFO L206 PostProcessor]: Analyzing one entry point: main
[2021-11-13 18:39:26,196 INFO L208 MainTranslator]: Completed translation
[2021-11-13 18:39:26,197 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:39:26 WrapperNode
[2021-11-13 18:39:26,197 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2021-11-13 18:39:26,198 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2021-11-13 18:39:26,199 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner...
[2021-11-13 18:39:26,199 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized
[2021-11-13 18:39:26,208 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:39:26" (1/1) ...
[2021-11-13 18:39:26,220 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:39:26" (1/1) ...
[2021-11-13 18:39:26,266 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2021-11-13 18:39:26,267 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2021-11-13 18:39:26,267 INFO L271 PluginConnector]: Initializing Boogie Preprocessor...
[2021-11-13 18:39:26,267 INFO L275 PluginConnector]: Boogie Preprocessor initialized
[2021-11-13 18:39:26,279 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:39:26" (1/1) ...
[2021-11-13 18:39:26,281 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:39:26" (1/1) ...
[2021-11-13 18:39:26,286 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:39:26" (1/1) ...
[2021-11-13 18:39:26,288 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:39:26" (1/1) ...
[2021-11-13 18:39:26,310 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:39:26" (1/1) ...
[2021-11-13 18:39:26,323 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:39:26" (1/1) ...
[2021-11-13 18:39:26,326 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:39:26" (1/1) ...
[2021-11-13 18:39:26,335 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2021-11-13 18:39:26,336 INFO L113 PluginConnector]: ------------------------RCFGBuilder----------------------------
[2021-11-13 18:39:26,336 INFO L271 PluginConnector]: Initializing RCFGBuilder...
[2021-11-13 18:39:26,336 INFO L275 PluginConnector]: RCFGBuilder initialized
[2021-11-13 18:39:26,350 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:39:26" (1/1) ...
[2021-11-13 18:39:26,359 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2021-11-13 18:39:26,374 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba1821d1-e2ee-48c8-bf8d-6f49f60f7fb9/bin/uautomizer-YU5uOKAj3y/z3
[2021-11-13 18:39:26,394 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba1821d1-e2ee-48c8-bf8d-6f49f60f7fb9/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null)
[2021-11-13 18:39:26,409 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba1821d1-e2ee-48c8-bf8d-6f49f60f7fb9/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process
[2021-11-13 18:39:26,446 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$
[2021-11-13 18:39:26,447 INFO L130 BoogieDeclarations]: Found specification of procedure thread1
[2021-11-13 18:39:26,447 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1
[2021-11-13 18:39:26,447 INFO L130 BoogieDeclarations]: Found specification of procedure thread2
[2021-11-13 18:39:26,447 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2
[2021-11-13 18:39:26,447 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int
[2021-11-13 18:39:26,447 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$
[2021-11-13 18:39:26,448 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack
[2021-11-13 18:39:26,448 INFO L130 BoogieDeclarations]: Found specification of procedure write~int
[2021-11-13 18:39:26,448 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap
[2021-11-13 18:39:26,448 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2021-11-13 18:39:26,448 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2021-11-13 18:39:26,448 INFO L130 BoogieDeclarations]: Found specification of procedure read~int
[2021-11-13 18:39:26,448 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2021-11-13 18:39:26,450 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 18:39:27,117 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2021-11-13 18:39:27,117 INFO L299 CfgBuilder]: Removed 7 assume(true) statements.
[2021-11-13 18:39:27,120 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 06:39:27 BoogieIcfgContainer
[2021-11-13 18:39:27,120 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2021-11-13 18:39:27,121 INFO L113 PluginConnector]: ------------------------TraceAbstraction----------------------------
[2021-11-13 18:39:27,122 INFO L271 PluginConnector]: Initializing TraceAbstraction...
[2021-11-13 18:39:27,125 INFO L275 PluginConnector]: TraceAbstraction initialized
[2021-11-13 18:39:27,126 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.11 06:39:25" (1/3) ...
[2021-11-13 18:39:27,126 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@54895fe8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 06:39:27, skipping insertion in model container
[2021-11-13 18:39:27,127 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:39:26" (2/3) ...
[2021-11-13 18:39:27,127 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@54895fe8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 06:39:27, skipping insertion in model container
[2021-11-13 18:39:27,127 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 06:39:27" (3/3) ...
[2021-11-13 18:39:27,129 INFO L111 eAbstractionObserver]: Analyzing ICFG loop-tiling-eq.wvr.c
[2021-11-13 18:39:27,134 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program
[2021-11-13 18:39:27,135 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2021-11-13 18:39:27,135 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2021-11-13 18:39:27,135 INFO L513 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances.
[2021-11-13 18:39:27,182 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-13 18:39:27,183 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-13 18:39:27,183 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-13 18:39:27,183 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-13 18:39:27,184 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-13 18:39:27,184 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-13 18:39:27,184 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-13 18:39:27,184 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-13 18:39:27,185 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-13 18:39:27,185 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-13 18:39:27,185 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-13 18:39:27,185 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-13 18:39:27,186 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-13 18:39:27,186 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-13 18:39:27,186 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-13 18:39:27,186 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-13 18:39:27,187 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-13 18:39:27,187 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-13 18:39:27,187 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-13 18:39:27,188 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-13 18:39:27,188 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-13 18:39:27,188 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-13 18:39:27,188 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-13 18:39:27,189 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-13 18:39:27,189 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-13 18:39:27,189 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-13 18:39:27,189 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-13 18:39:27,190 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-13 18:39:27,190 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-13 18:39:27,190 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-13 18:39:27,191 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-13 18:39:27,191 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-13 18:39:27,191 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-13 18:39:27,192 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-13 18:39:27,192 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-13 18:39:27,192 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-13 18:39:27,192 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-13 18:39:27,193 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-13 18:39:27,193 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-13 18:39:27,193 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-13 18:39:27,193 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~j~0 not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-13 18:39:27,194 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~j~0 not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-13 18:39:27,194 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~j~0 not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-13 18:39:27,194 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~j~0 not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-13 18:39:27,194 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~j~0 not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-13 18:39:27,195 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~j~0 not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-13 18:39:27,195 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-13 18:39:27,195 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-13 18:39:27,195 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-13 18:39:27,196 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-13 18:39:27,196 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-13 18:39:27,196 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem7.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-13 18:39:27,196 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem7.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-13 18:39:27,197 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-13 18:39:27,197 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem7.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-13 18:39:27,197 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem7.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-13 18:39:27,198 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-13 18:39:27,198 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-13 18:39:27,198 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-13 18:39:27,198 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-13 18:39:27,199 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~j~0 not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-13 18:39:27,199 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-13 18:39:27,199 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem8| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-13 18:39:27,199 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~j~0 not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-13 18:39:27,200 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-13 18:39:27,200 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem8| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-13 18:39:27,200 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-13 18:39:27,200 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-13 18:39:27,201 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem7.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-13 18:39:27,201 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~j~0 not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-13 18:39:27,201 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem7.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-13 18:39:27,201 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem8| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-13 18:39:27,202 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem7.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-13 18:39:27,202 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~j~0 not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-13 18:39:27,202 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem7.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-13 18:39:27,202 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem8| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-13 18:39:27,203 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem7.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-13 18:39:27,203 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem7.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-13 18:39:27,203 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem7.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-13 18:39:27,203 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem7.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-13 18:39:27,204 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem8| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-13 18:39:27,204 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem8| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-13 18:39:27,204 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~j~0 not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-13 18:39:27,204 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-13 18:39:27,205 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~j~0 not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-13 18:39:27,205 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-13 18:39:27,205 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-13 18:39:27,205 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~j~0 not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-13 18:39:27,206 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-13 18:39:27,206 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~j~0 not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-13 18:39:27,206 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-13 18:39:27,206 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-13 18:39:27,210 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-13 18:39:27,210 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-13 18:39:27,210 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem8| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-13 18:39:27,211 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-13 18:39:27,211 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-13 18:39:27,211 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem7.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-13 18:39:27,211 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem7.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-13 18:39:27,212 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-13 18:39:27,212 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~j~0 not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-13 18:39:27,215 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-13 18:39:27,216 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-13 18:39:27,216 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-13 18:39:27,216 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-13 18:39:27,217 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-13 18:39:27,220 INFO L148 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions.
[2021-11-13 18:39:27,287 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2021-11-13 18:39:27,305 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 18:39:27,306 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations.
[2021-11-13 18:39:27,336 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 260 places, 279 transitions, 574 flow
[2021-11-13 18:39:27,560 INFO L129 PetriNetUnfolder]: 26/277 cut-off events.
[2021-11-13 18:39:27,574 INFO L130 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES.
[2021-11-13 18:39:27,579 INFO L84 FinitePrefix]: Finished finitePrefix Result has 286 conditions, 277 events. 26/277 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 269 event pairs, 0 based on Foata normal form. 0/250 useless extension candidates. Maximal degree in co-relation 211. Up to 2 conditions per place.
[2021-11-13 18:39:27,583 INFO L82 GeneralOperation]: Start removeDead. Operand has 260 places, 279 transitions, 574 flow
[2021-11-13 18:39:27,592 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 249 places, 268 transitions, 548 flow
[2021-11-13 18:39:27,721 INFO L129 PetriNetUnfolder]: 26/267 cut-off events.
[2021-11-13 18:39:27,721 INFO L130 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES.
[2021-11-13 18:39:27,722 INFO L246 CegarLoopForPetriNet]: Found error trace
[2021-11-13 18:39:27,723 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, 1]
[2021-11-13 18:39:27,724 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] ===
[2021-11-13 18:39:27,735 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-11-13 18:39:27,735 INFO L85 PathProgramCache]: Analyzing trace with hash 1050114858, now seen corresponding path program 1 times
[2021-11-13 18:39:27,746 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-11-13 18:39:27,747 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [396665246]
[2021-11-13 18:39:27,748 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-11-13 18:39:27,749 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2021-11-13 18:39:27,900 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2021-11-13 18:39:27,901 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1340979305]
[2021-11-13 18:39:27,901 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-11-13 18:39:27,902 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2021-11-13 18:39:27,902 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba1821d1-e2ee-48c8-bf8d-6f49f60f7fb9/bin/uautomizer-YU5uOKAj3y/z3
[2021-11-13 18:39:27,904 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba1821d1-e2ee-48c8-bf8d-6f49f60f7fb9/bin/uautomizer-YU5uOKAj3y/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2021-11-13 18:39:27,918 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba1821d1-e2ee-48c8-bf8d-6f49f60f7fb9/bin/uautomizer-YU5uOKAj3y/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process
[2021-11-13 18:39:28,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-11-13 18:39:28,110 INFO L263 TraceCheckSpWp]: Trace formula consists of 335 conjuncts, 1 conjunts are in the unsatisfiable core
[2021-11-13 18:39:28,121 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2021-11-13 18:39:28,541 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 18:39:28,541 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2021-11-13 18:39:28,542 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-11-13 18:39:28,542 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [396665246]
[2021-11-13 18:39:28,542 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown
[2021-11-13 18:39:28,543 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1340979305]
[2021-11-13 18:39:28,546 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1340979305] provided 1 perfect and 0 imperfect interpolant sequences
[2021-11-13 18:39:28,547 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2021-11-13 18:39:28,547 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2021-11-13 18:39:28,550 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1174701062]
[2021-11-13 18:39:28,550 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2021-11-13 18:39:28,563 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2021-11-13 18:39:28,563 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-11-13 18:39:28,600 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2021-11-13 18:39:28,603 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2021-11-13 18:39:28,611 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 255 out of 279
[2021-11-13 18:39:28,620 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 249 places, 268 transitions, 548 flow. Second operand has 2 states, 2 states have (on average 258.5) internal successors, (517), 2 states have internal predecessors, (517), 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 18:39:28,621 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2021-11-13 18:39:28,621 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 255 of 279
[2021-11-13 18:39:28,623 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2021-11-13 18:39:28,705 INFO L129 PetriNetUnfolder]: 7/249 cut-off events.
[2021-11-13 18:39:28,706 INFO L130 PetriNetUnfolder]: For 8/8 co-relation queries the response was YES.
[2021-11-13 18:39:28,708 INFO L84 FinitePrefix]: Finished finitePrefix Result has 263 conditions, 249 events. 7/249 cut-off events. For 8/8 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 250 event pairs, 0 based on Foata normal form. 22/252 useless extension candidates. Maximal degree in co-relation 197. Up to 5 conditions per place.
[2021-11-13 18:39:28,712 INFO L132 encePairwiseOnDemand]: 260/279 looper letters, 4 selfloop transitions, 0 changer transitions 12/249 dead transitions.
[2021-11-13 18:39:28,712 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 250 places, 249 transitions, 518 flow
[2021-11-13 18:39:28,713 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states.
[2021-11-13 18:39:28,717 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states.
[2021-11-13 18:39:28,734 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 533 transitions.
[2021-11-13 18:39:28,738 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.9551971326164874
[2021-11-13 18:39:28,739 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 533 transitions.
[2021-11-13 18:39:28,739 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 533 transitions.
[2021-11-13 18:39:28,743 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic.
[2021-11-13 18:39:28,746 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 533 transitions.
[2021-11-13 18:39:28,753 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 266.5) internal successors, (533), 2 states have internal predecessors, (533), 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 18:39:28,774 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 279.0) internal successors, (837), 3 states have internal predecessors, (837), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-11-13 18:39:28,775 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 279.0) internal successors, (837), 3 states have internal predecessors, (837), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-11-13 18:39:28,778 INFO L186 Difference]: Start difference. First operand has 249 places, 268 transitions, 548 flow. Second operand 2 states and 533 transitions.
[2021-11-13 18:39:28,779 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 250 places, 249 transitions, 518 flow
[2021-11-13 18:39:28,786 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 246 places, 249 transitions, 510 flow, removed 0 selfloop flow, removed 4 redundant places.
[2021-11-13 18:39:28,794 INFO L242 Difference]: Finished difference. Result has 246 places, 237 transitions, 478 flow
[2021-11-13 18:39:28,797 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=279, PETRI_DIFFERENCE_MINUEND_FLOW=502, PETRI_DIFFERENCE_MINUEND_PLACES=245, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=249, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=249, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=478, PETRI_PLACES=246, PETRI_TRANSITIONS=237}
[2021-11-13 18:39:28,801 INFO L334 CegarLoopForPetriNet]: 249 programPoint places, -3 predicate places.
[2021-11-13 18:39:28,801 INFO L470 AbstractCegarLoop]: Abstraction has has 246 places, 237 transitions, 478 flow
[2021-11-13 18:39:28,802 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 258.5) internal successors, (517), 2 states have internal predecessors, (517), 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 18:39:28,803 INFO L246 CegarLoopForPetriNet]: Found error trace
[2021-11-13 18:39:28,803 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, 1]
[2021-11-13 18:39:28,846 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba1821d1-e2ee-48c8-bf8d-6f49f60f7fb9/bin/uautomizer-YU5uOKAj3y/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0
[2021-11-13 18:39:29,030 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba1821d1-e2ee-48c8-bf8d-6f49f60f7fb9/bin/uautomizer-YU5uOKAj3y/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0
[2021-11-13 18:39:29,031 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] ===
[2021-11-13 18:39:29,031 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-11-13 18:39:29,032 INFO L85 PathProgramCache]: Analyzing trace with hash -1625615327, now seen corresponding path program 1 times
[2021-11-13 18:39:29,032 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-11-13 18:39:29,032 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [698362662]
[2021-11-13 18:39:29,032 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-11-13 18:39:29,033 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2021-11-13 18:39:29,093 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2021-11-13 18:39:29,094 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1163616615]
[2021-11-13 18:39:29,094 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-11-13 18:39:29,094 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2021-11-13 18:39:29,095 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba1821d1-e2ee-48c8-bf8d-6f49f60f7fb9/bin/uautomizer-YU5uOKAj3y/z3
[2021-11-13 18:39:29,096 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba1821d1-e2ee-48c8-bf8d-6f49f60f7fb9/bin/uautomizer-YU5uOKAj3y/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2021-11-13 18:39:29,104 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba1821d1-e2ee-48c8-bf8d-6f49f60f7fb9/bin/uautomizer-YU5uOKAj3y/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process
[2021-11-13 18:39:29,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-11-13 18:39:29,232 INFO L263 TraceCheckSpWp]: Trace formula consists of 335 conjuncts, 7 conjunts are in the unsatisfiable core
[2021-11-13 18:39:29,239 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2021-11-13 18:39:29,825 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 18:39:29,825 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2021-11-13 18:39:29,826 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-11-13 18:39:29,826 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [698362662]
[2021-11-13 18:39:29,826 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown
[2021-11-13 18:39:29,826 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1163616615]
[2021-11-13 18:39:29,826 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1163616615] provided 1 perfect and 0 imperfect interpolant sequences
[2021-11-13 18:39:29,827 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2021-11-13 18:39:29,827 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2021-11-13 18:39:29,827 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1479953156]
[2021-11-13 18:39:29,827 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2021-11-13 18:39:29,829 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2021-11-13 18:39:29,829 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-11-13 18:39:29,830 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2021-11-13 18:39:29,830 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30
[2021-11-13 18:39:29,832 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 182 out of 279
[2021-11-13 18:39:29,834 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 246 places, 237 transitions, 478 flow. Second operand has 6 states, 6 states have (on average 190.66666666666666) internal successors, (1144), 6 states have internal predecessors, (1144), 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 18:39:29,835 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2021-11-13 18:39:29,835 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 182 of 279
[2021-11-13 18:39:29,835 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2021-11-13 18:39:30,133 INFO L129 PetriNetUnfolder]: 21/377 cut-off events.
[2021-11-13 18:39:30,133 INFO L130 PetriNetUnfolder]: For 8/8 co-relation queries the response was YES.
[2021-11-13 18:39:30,135 INFO L84 FinitePrefix]: Finished finitePrefix Result has 483 conditions, 377 events. 21/377 cut-off events. For 8/8 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 666 event pairs, 4 based on Foata normal form. 1/356 useless extension candidates. Maximal degree in co-relation 480. Up to 66 conditions per place.
[2021-11-13 18:39:30,138 INFO L132 encePairwiseOnDemand]: 271/279 looper letters, 73 selfloop transitions, 4 changer transitions 10/259 dead transitions.
[2021-11-13 18:39:30,138 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 240 places, 259 transitions, 700 flow
[2021-11-13 18:39:30,138 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states.
[2021-11-13 18:39:30,139 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states.
[2021-11-13 18:39:30,145 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 1362 transitions.
[2021-11-13 18:39:30,147 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.6973886328725039
[2021-11-13 18:39:30,147 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 1362 transitions.
[2021-11-13 18:39:30,147 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 1362 transitions.
[2021-11-13 18:39:30,149 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic.
[2021-11-13 18:39:30,149 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 1362 transitions.
[2021-11-13 18:39:30,155 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 194.57142857142858) internal successors, (1362), 7 states have internal predecessors, (1362), 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 18:39:30,163 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 279.0) internal successors, (2232), 8 states have internal predecessors, (2232), 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 18:39:30,165 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 279.0) internal successors, (2232), 8 states have internal predecessors, (2232), 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 18:39:30,166 INFO L186 Difference]: Start difference. First operand has 246 places, 237 transitions, 478 flow. Second operand 7 states and 1362 transitions.
[2021-11-13 18:39:30,166 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 240 places, 259 transitions, 700 flow
[2021-11-13 18:39:30,171 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 240 places, 259 transitions, 700 flow, removed 0 selfloop flow, removed 0 redundant places.
[2021-11-13 18:39:30,182 INFO L242 Difference]: Finished difference. Result has 244 places, 238 transitions, 500 flow
[2021-11-13 18:39:30,182 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=279, PETRI_DIFFERENCE_MINUEND_FLOW=478, PETRI_DIFFERENCE_MINUEND_PLACES=234, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=237, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=233, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=500, PETRI_PLACES=244, PETRI_TRANSITIONS=238}
[2021-11-13 18:39:30,183 INFO L334 CegarLoopForPetriNet]: 249 programPoint places, -5 predicate places.
[2021-11-13 18:39:30,184 INFO L470 AbstractCegarLoop]: Abstraction has has 244 places, 238 transitions, 500 flow
[2021-11-13 18:39:30,185 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 190.66666666666666) internal successors, (1144), 6 states have internal predecessors, (1144), 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 18:39:30,185 INFO L246 CegarLoopForPetriNet]: Found error trace
[2021-11-13 18:39:30,186 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, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:39:30,222 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba1821d1-e2ee-48c8-bf8d-6f49f60f7fb9/bin/uautomizer-YU5uOKAj3y/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0
[2021-11-13 18:39:30,402 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba1821d1-e2ee-48c8-bf8d-6f49f60f7fb9/bin/uautomizer-YU5uOKAj3y/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2021-11-13 18:39:30,402 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] ===
[2021-11-13 18:39:30,403 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-11-13 18:39:30,403 INFO L85 PathProgramCache]: Analyzing trace with hash -1714519334, now seen corresponding path program 1 times
[2021-11-13 18:39:30,403 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-11-13 18:39:30,404 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [914587078]
[2021-11-13 18:39:30,404 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-11-13 18:39:30,404 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2021-11-13 18:39:30,431 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2021-11-13 18:39:30,431 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2050942505]
[2021-11-13 18:39:30,432 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-11-13 18:39:30,432 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2021-11-13 18:39:30,432 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba1821d1-e2ee-48c8-bf8d-6f49f60f7fb9/bin/uautomizer-YU5uOKAj3y/z3
[2021-11-13 18:39:30,433 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba1821d1-e2ee-48c8-bf8d-6f49f60f7fb9/bin/uautomizer-YU5uOKAj3y/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2021-11-13 18:39:30,470 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba1821d1-e2ee-48c8-bf8d-6f49f60f7fb9/bin/uautomizer-YU5uOKAj3y/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process
[2021-11-13 18:39:30,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-11-13 18:39:30,609 INFO L263 TraceCheckSpWp]: Trace formula consists of 393 conjuncts, 4 conjunts are in the unsatisfiable core
[2021-11-13 18:39:30,623 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2021-11-13 18:39:31,094 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-11-13 18:39:31,095 INFO L328 TraceCheckSpWp]: Computing backward predicates...
[2021-11-13 18:39:31,465 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-11-13 18:39:31,465 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-11-13 18:39:31,465 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [914587078]
[2021-11-13 18:39:31,465 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown
[2021-11-13 18:39:31,466 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2050942505]
[2021-11-13 18:39:31,466 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2050942505] provided 0 perfect and 2 imperfect interpolant sequences
[2021-11-13 18:39:31,466 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences.
[2021-11-13 18:39:31,466 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 6
[2021-11-13 18:39:31,467 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1719821101]
[2021-11-13 18:39:31,467 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton
[2021-11-13 18:39:31,468 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2021-11-13 18:39:31,468 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-11-13 18:39:31,469 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2021-11-13 18:39:31,469 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30
[2021-11-13 18:39:31,472 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 233 out of 279
[2021-11-13 18:39:31,475 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 244 places, 238 transitions, 500 flow. Second operand has 6 states, 6 states have (on average 236.83333333333334) internal successors, (1421), 6 states have internal predecessors, (1421), 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 18:39:31,475 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2021-11-13 18:39:31,476 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 233 of 279
[2021-11-13 18:39:31,476 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2021-11-13 18:39:31,649 INFO L129 PetriNetUnfolder]: 23/334 cut-off events.
[2021-11-13 18:39:31,649 INFO L130 PetriNetUnfolder]: For 20/20 co-relation queries the response was YES.
[2021-11-13 18:39:31,652 INFO L84 FinitePrefix]: Finished finitePrefix Result has 412 conditions, 334 events. 23/334 cut-off events. For 20/20 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 600 event pairs, 4 based on Foata normal form. 0/322 useless extension candidates. Maximal degree in co-relation 404. Up to 17 conditions per place.
[2021-11-13 18:39:31,656 INFO L132 encePairwiseOnDemand]: 271/279 looper letters, 29 selfloop transitions, 8 changer transitions 0/248 dead transitions.
[2021-11-13 18:39:31,656 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 247 places, 248 transitions, 596 flow
[2021-11-13 18:39:31,656 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states.
[2021-11-13 18:39:31,657 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states.
[2021-11-13 18:39:31,662 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 1669 transitions.
[2021-11-13 18:39:31,663 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8545826932923707
[2021-11-13 18:39:31,663 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 1669 transitions.
[2021-11-13 18:39:31,664 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 1669 transitions.
[2021-11-13 18:39:31,666 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic.
[2021-11-13 18:39:31,666 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 1669 transitions.
[2021-11-13 18:39:31,672 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 238.42857142857142) internal successors, (1669), 7 states have internal predecessors, (1669), 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 18:39:31,679 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 279.0) internal successors, (2232), 8 states have internal predecessors, (2232), 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 18:39:31,682 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 279.0) internal successors, (2232), 8 states have internal predecessors, (2232), 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 18:39:31,682 INFO L186 Difference]: Start difference. First operand has 244 places, 238 transitions, 500 flow. Second operand 7 states and 1669 transitions.
[2021-11-13 18:39:31,682 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 247 places, 248 transitions, 596 flow
[2021-11-13 18:39:31,686 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 242 places, 248 transitions, 584 flow, removed 3 selfloop flow, removed 5 redundant places.
[2021-11-13 18:39:31,692 INFO L242 Difference]: Finished difference. Result has 245 places, 241 transitions, 527 flow
[2021-11-13 18:39:31,693 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=279, PETRI_DIFFERENCE_MINUEND_FLOW=488, PETRI_DIFFERENCE_MINUEND_PLACES=236, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=238, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=231, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=527, PETRI_PLACES=245, PETRI_TRANSITIONS=241}
[2021-11-13 18:39:31,696 INFO L334 CegarLoopForPetriNet]: 249 programPoint places, -4 predicate places.
[2021-11-13 18:39:31,696 INFO L470 AbstractCegarLoop]: Abstraction has has 245 places, 241 transitions, 527 flow
[2021-11-13 18:39:31,698 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 236.83333333333334) internal successors, (1421), 6 states have internal predecessors, (1421), 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 18:39:31,698 INFO L246 CegarLoopForPetriNet]: Found error trace
[2021-11-13 18:39:31,698 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:39:31,743 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba1821d1-e2ee-48c8-bf8d-6f49f60f7fb9/bin/uautomizer-YU5uOKAj3y/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0
[2021-11-13 18:39:31,914 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba1821d1-e2ee-48c8-bf8d-6f49f60f7fb9/bin/uautomizer-YU5uOKAj3y/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2021-11-13 18:39:31,914 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] ===
[2021-11-13 18:39:31,915 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-11-13 18:39:31,915 INFO L85 PathProgramCache]: Analyzing trace with hash -290004070, now seen corresponding path program 1 times
[2021-11-13 18:39:31,915 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-11-13 18:39:31,915 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1272042607]
[2021-11-13 18:39:31,916 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-11-13 18:39:31,916 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2021-11-13 18:39:31,941 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2021-11-13 18:39:31,941 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1379540379]
[2021-11-13 18:39:31,942 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-11-13 18:39:31,942 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2021-11-13 18:39:31,942 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba1821d1-e2ee-48c8-bf8d-6f49f60f7fb9/bin/uautomizer-YU5uOKAj3y/z3
[2021-11-13 18:39:31,943 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba1821d1-e2ee-48c8-bf8d-6f49f60f7fb9/bin/uautomizer-YU5uOKAj3y/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2021-11-13 18:39:31,962 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba1821d1-e2ee-48c8-bf8d-6f49f60f7fb9/bin/uautomizer-YU5uOKAj3y/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process
[2021-11-13 18:39:32,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-11-13 18:39:32,083 INFO L263 TraceCheckSpWp]: Trace formula consists of 402 conjuncts, 9 conjunts are in the unsatisfiable core
[2021-11-13 18:39:32,087 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2021-11-13 18:39:32,641 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 18:39:32,641 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2021-11-13 18:39:32,641 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-11-13 18:39:32,642 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1272042607]
[2021-11-13 18:39:32,642 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown
[2021-11-13 18:39:32,643 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1379540379]
[2021-11-13 18:39:32,643 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1379540379] provided 1 perfect and 0 imperfect interpolant sequences
[2021-11-13 18:39:32,644 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2021-11-13 18:39:32,646 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8
[2021-11-13 18:39:32,646 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [515918033]
[2021-11-13 18:39:32,646 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2021-11-13 18:39:32,647 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2021-11-13 18:39:32,647 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-11-13 18:39:32,648 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2021-11-13 18:39:32,649 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56
[2021-11-13 18:39:32,652 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 158 out of 279
[2021-11-13 18:39:32,655 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 245 places, 241 transitions, 527 flow. Second operand has 8 states, 8 states have (on average 167.375) internal successors, (1339), 8 states have internal predecessors, (1339), 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 18:39:32,658 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2021-11-13 18:39:32,659 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 158 of 279
[2021-11-13 18:39:32,659 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2021-11-13 18:39:33,183 INFO L129 PetriNetUnfolder]: 39/585 cut-off events.
[2021-11-13 18:39:33,183 INFO L130 PetriNetUnfolder]: For 47/47 co-relation queries the response was YES.
[2021-11-13 18:39:33,185 INFO L84 FinitePrefix]: Finished finitePrefix Result has 855 conditions, 585 events. 39/585 cut-off events. For 47/47 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 1935 event pairs, 18 based on Foata normal form. 2/564 useless extension candidates. Maximal degree in co-relation 847. Up to 64 conditions per place.
[2021-11-13 18:39:33,187 INFO L132 encePairwiseOnDemand]: 268/279 looper letters, 88 selfloop transitions, 7 changer transitions 46/293 dead transitions.
[2021-11-13 18:39:33,188 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 257 places, 293 transitions, 921 flow
[2021-11-13 18:39:33,188 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states.
[2021-11-13 18:39:33,188 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states.
[2021-11-13 18:39:33,196 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 2197 transitions.
[2021-11-13 18:39:33,198 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.6057347670250897
[2021-11-13 18:39:33,198 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 2197 transitions.
[2021-11-13 18:39:33,198 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 2197 transitions.
[2021-11-13 18:39:33,201 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic.
[2021-11-13 18:39:33,201 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 2197 transitions.
[2021-11-13 18:39:33,212 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 169.0) internal successors, (2197), 13 states have internal predecessors, (2197), 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 18:39:33,222 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 279.0) internal successors, (3906), 14 states have internal predecessors, (3906), 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 18:39:33,224 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 279.0) internal successors, (3906), 14 states have internal predecessors, (3906), 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 18:39:33,225 INFO L186 Difference]: Start difference. First operand has 245 places, 241 transitions, 527 flow. Second operand 13 states and 2197 transitions.
[2021-11-13 18:39:33,225 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 257 places, 293 transitions, 921 flow
[2021-11-13 18:39:33,230 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 256 places, 293 transitions, 920 flow, removed 0 selfloop flow, removed 1 redundant places.
[2021-11-13 18:39:33,236 INFO L242 Difference]: Finished difference. Result has 265 places, 244 transitions, 581 flow
[2021-11-13 18:39:33,237 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=279, PETRI_DIFFERENCE_MINUEND_FLOW=526, PETRI_DIFFERENCE_MINUEND_PLACES=244, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=241, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=234, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=581, PETRI_PLACES=265, PETRI_TRANSITIONS=244}
[2021-11-13 18:39:33,239 INFO L334 CegarLoopForPetriNet]: 249 programPoint places, 16 predicate places.
[2021-11-13 18:39:33,239 INFO L470 AbstractCegarLoop]: Abstraction has has 265 places, 244 transitions, 581 flow
[2021-11-13 18:39:33,242 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 167.375) internal successors, (1339), 8 states have internal predecessors, (1339), 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 18:39:33,242 INFO L246 CegarLoopForPetriNet]: Found error trace
[2021-11-13 18:39:33,243 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:39:33,282 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba1821d1-e2ee-48c8-bf8d-6f49f60f7fb9/bin/uautomizer-YU5uOKAj3y/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0
[2021-11-13 18:39:33,468 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba1821d1-e2ee-48c8-bf8d-6f49f60f7fb9/bin/uautomizer-YU5uOKAj3y/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2021-11-13 18:39:33,469 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] ===
[2021-11-13 18:39:33,469 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-11-13 18:39:33,469 INFO L85 PathProgramCache]: Analyzing trace with hash 1177867469, now seen corresponding path program 1 times
[2021-11-13 18:39:33,470 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-11-13 18:39:33,470 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [297258791]
[2021-11-13 18:39:33,470 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-11-13 18:39:33,470 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2021-11-13 18:39:33,538 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2021-11-13 18:39:33,539 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [186427740]
[2021-11-13 18:39:33,539 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-11-13 18:39:33,539 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2021-11-13 18:39:33,540 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba1821d1-e2ee-48c8-bf8d-6f49f60f7fb9/bin/uautomizer-YU5uOKAj3y/z3
[2021-11-13 18:39:33,562 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba1821d1-e2ee-48c8-bf8d-6f49f60f7fb9/bin/uautomizer-YU5uOKAj3y/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2021-11-13 18:39:33,588 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba1821d1-e2ee-48c8-bf8d-6f49f60f7fb9/bin/uautomizer-YU5uOKAj3y/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process
[2021-11-13 18:39:33,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-11-13 18:39:33,721 INFO L263 TraceCheckSpWp]: Trace formula consists of 414 conjuncts, 6 conjunts are in the unsatisfiable core
[2021-11-13 18:39:33,725 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2021-11-13 18:39:34,239 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-11-13 18:39:34,239 INFO L328 TraceCheckSpWp]: Computing backward predicates...
[2021-11-13 18:39:34,738 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-11-13 18:39:34,738 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-11-13 18:39:34,739 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [297258791]
[2021-11-13 18:39:34,739 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown
[2021-11-13 18:39:34,739 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [186427740]
[2021-11-13 18:39:34,739 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [186427740] provided 1 perfect and 1 imperfect interpolant sequences
[2021-11-13 18:39:34,739 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2021-11-13 18:39:34,740 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [7] total 11
[2021-11-13 18:39:34,740 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1351227926]
[2021-11-13 18:39:34,740 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2021-11-13 18:39:34,741 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2021-11-13 18:39:34,741 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-11-13 18:39:34,742 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2021-11-13 18:39:34,742 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=78, Unknown=0, NotChecked=0, Total=110
[2021-11-13 18:39:34,746 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 205 out of 279
[2021-11-13 18:39:34,748 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 265 places, 244 transitions, 581 flow. Second operand has 7 states, 7 states have (on average 210.85714285714286) internal successors, (1476), 7 states have internal predecessors, (1476), 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 18:39:34,749 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2021-11-13 18:39:34,749 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 205 of 279
[2021-11-13 18:39:34,749 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2021-11-13 18:39:35,027 INFO L129 PetriNetUnfolder]: 26/349 cut-off events.
[2021-11-13 18:39:35,027 INFO L130 PetriNetUnfolder]: For 56/56 co-relation queries the response was YES.
[2021-11-13 18:39:35,029 INFO L84 FinitePrefix]: Finished finitePrefix Result has 539 conditions, 349 events. 26/349 cut-off events. For 56/56 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 564 event pairs, 4 based on Foata normal form. 0/342 useless extension candidates. Maximal degree in co-relation 523. Up to 43 conditions per place.
[2021-11-13 18:39:35,031 INFO L132 encePairwiseOnDemand]: 267/279 looper letters, 54 selfloop transitions, 11 changer transitions 0/252 dead transitions.
[2021-11-13 18:39:35,031 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 266 places, 252 transitions, 735 flow
[2021-11-13 18:39:35,032 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states.
[2021-11-13 18:39:35,032 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states.
[2021-11-13 18:39:35,038 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1910 transitions.
[2021-11-13 18:39:35,041 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7606531262445241
[2021-11-13 18:39:35,041 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 1910 transitions.
[2021-11-13 18:39:35,041 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 1910 transitions.
[2021-11-13 18:39:35,043 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic.
[2021-11-13 18:39:35,044 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 1910 transitions.
[2021-11-13 18:39:35,051 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 212.22222222222223) internal successors, (1910), 9 states have internal predecessors, (1910), 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 18:39:35,059 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 279.0) internal successors, (2790), 10 states have internal predecessors, (2790), 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 18:39:35,061 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 279.0) internal successors, (2790), 10 states have internal predecessors, (2790), 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 18:39:35,061 INFO L186 Difference]: Start difference. First operand has 265 places, 244 transitions, 581 flow. Second operand 9 states and 1910 transitions.
[2021-11-13 18:39:35,061 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 266 places, 252 transitions, 735 flow
[2021-11-13 18:39:35,066 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 258 places, 252 transitions, 711 flow, removed 9 selfloop flow, removed 8 redundant places.
[2021-11-13 18:39:35,072 INFO L242 Difference]: Finished difference. Result has 263 places, 248 transitions, 617 flow
[2021-11-13 18:39:35,073 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=279, PETRI_DIFFERENCE_MINUEND_FLOW=558, PETRI_DIFFERENCE_MINUEND_PLACES=250, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=244, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=233, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=617, PETRI_PLACES=263, PETRI_TRANSITIONS=248}
[2021-11-13 18:39:35,074 INFO L334 CegarLoopForPetriNet]: 249 programPoint places, 14 predicate places.
[2021-11-13 18:39:35,075 INFO L470 AbstractCegarLoop]: Abstraction has has 263 places, 248 transitions, 617 flow
[2021-11-13 18:39:35,076 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 210.85714285714286) internal successors, (1476), 7 states have internal predecessors, (1476), 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 18:39:35,076 INFO L246 CegarLoopForPetriNet]: Found error trace
[2021-11-13 18:39:35,076 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:39:35,123 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba1821d1-e2ee-48c8-bf8d-6f49f60f7fb9/bin/uautomizer-YU5uOKAj3y/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0
[2021-11-13 18:39:35,290 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba1821d1-e2ee-48c8-bf8d-6f49f60f7fb9/bin/uautomizer-YU5uOKAj3y/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2021-11-13 18:39:35,290 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] ===
[2021-11-13 18:39:35,291 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-11-13 18:39:35,291 INFO L85 PathProgramCache]: Analyzing trace with hash -2142216354, now seen corresponding path program 1 times
[2021-11-13 18:39:35,291 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-11-13 18:39:35,291 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [312837139]
[2021-11-13 18:39:35,291 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-11-13 18:39:35,292 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2021-11-13 18:39:35,315 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2021-11-13 18:39:35,318 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1038659758]
[2021-11-13 18:39:35,318 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-11-13 18:39:35,319 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2021-11-13 18:39:35,319 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba1821d1-e2ee-48c8-bf8d-6f49f60f7fb9/bin/uautomizer-YU5uOKAj3y/z3
[2021-11-13 18:39:35,320 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba1821d1-e2ee-48c8-bf8d-6f49f60f7fb9/bin/uautomizer-YU5uOKAj3y/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2021-11-13 18:39:35,323 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba1821d1-e2ee-48c8-bf8d-6f49f60f7fb9/bin/uautomizer-YU5uOKAj3y/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process
[2021-11-13 18:39:35,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-11-13 18:39:35,504 INFO L263 TraceCheckSpWp]: Trace formula consists of 431 conjuncts, 11 conjunts are in the unsatisfiable core
[2021-11-13 18:39:35,508 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2021-11-13 18:39:37,073 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked.
[2021-11-13 18:39:37,073 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2021-11-13 18:39:37,074 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-11-13 18:39:37,074 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [312837139]
[2021-11-13 18:39:37,077 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown
[2021-11-13 18:39:37,077 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1038659758]
[2021-11-13 18:39:37,077 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1038659758] provided 1 perfect and 0 imperfect interpolant sequences
[2021-11-13 18:39:37,077 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2021-11-13 18:39:37,078 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12
[2021-11-13 18:39:37,078 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2081369379]
[2021-11-13 18:39:37,078 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2021-11-13 18:39:37,079 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states
[2021-11-13 18:39:37,079 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-11-13 18:39:37,081 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants.
[2021-11-13 18:39:37,082 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132
[2021-11-13 18:39:37,087 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 192 out of 279
[2021-11-13 18:39:37,090 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 263 places, 248 transitions, 617 flow. Second operand has 12 states, 12 states have (on average 196.83333333333334) internal successors, (2362), 12 states have internal predecessors, (2362), 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 18:39:37,091 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2021-11-13 18:39:37,091 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 192 of 279
[2021-11-13 18:39:37,091 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2021-11-13 18:39:37,662 INFO L129 PetriNetUnfolder]: 67/594 cut-off events.
[2021-11-13 18:39:37,662 INFO L130 PetriNetUnfolder]: For 145/166 co-relation queries the response was YES.
[2021-11-13 18:39:37,664 INFO L84 FinitePrefix]: Finished finitePrefix Result has 972 conditions, 594 events. 67/594 cut-off events. For 145/166 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 1527 event pairs, 29 based on Foata normal form. 22/581 useless extension candidates. Maximal degree in co-relation 956. Up to 150 conditions per place.
[2021-11-13 18:39:37,667 INFO L132 encePairwiseOnDemand]: 260/279 looper letters, 73 selfloop transitions, 12 changer transitions 35/291 dead transitions.
[2021-11-13 18:39:37,667 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 279 places, 291 transitions, 996 flow
[2021-11-13 18:39:37,667 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states.
[2021-11-13 18:39:37,668 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states.
[2021-11-13 18:39:37,678 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 3377 transitions.
[2021-11-13 18:39:37,680 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7119966266076323
[2021-11-13 18:39:37,680 INFO L72 ComplementDD]: Start complementDD. Operand 17 states and 3377 transitions.
[2021-11-13 18:39:37,681 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 3377 transitions.
[2021-11-13 18:39:37,684 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic.
[2021-11-13 18:39:37,684 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 17 states and 3377 transitions.
[2021-11-13 18:39:37,696 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 18 states, 17 states have (on average 198.64705882352942) internal successors, (3377), 17 states have internal predecessors, (3377), 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 18:39:37,710 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 18 states, 18 states have (on average 279.0) internal successors, (5022), 18 states have internal predecessors, (5022), 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 18:39:37,713 INFO L81 ComplementDD]: Finished complementDD. Result has 18 states, 18 states have (on average 279.0) internal successors, (5022), 18 states have internal predecessors, (5022), 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 18:39:37,714 INFO L186 Difference]: Start difference. First operand has 263 places, 248 transitions, 617 flow. Second operand 17 states and 3377 transitions.
[2021-11-13 18:39:37,714 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 279 places, 291 transitions, 996 flow
[2021-11-13 18:39:37,719 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 275 places, 291 transitions, 968 flow, removed 2 selfloop flow, removed 4 redundant places.
[2021-11-13 18:39:37,725 INFO L242 Difference]: Finished difference. Result has 283 places, 250 transitions, 656 flow
[2021-11-13 18:39:37,726 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=279, PETRI_DIFFERENCE_MINUEND_FLOW=600, PETRI_DIFFERENCE_MINUEND_PLACES=259, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=248, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=236, PETRI_DIFFERENCE_SUBTRAHEND_STATES=17, PETRI_FLOW=656, PETRI_PLACES=283, PETRI_TRANSITIONS=250}
[2021-11-13 18:39:37,727 INFO L334 CegarLoopForPetriNet]: 249 programPoint places, 34 predicate places.
[2021-11-13 18:39:37,727 INFO L470 AbstractCegarLoop]: Abstraction has has 283 places, 250 transitions, 656 flow
[2021-11-13 18:39:37,729 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 196.83333333333334) internal successors, (2362), 12 states have internal predecessors, (2362), 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 18:39:37,729 INFO L246 CegarLoopForPetriNet]: Found error trace
[2021-11-13 18:39:37,729 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:39:37,774 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba1821d1-e2ee-48c8-bf8d-6f49f60f7fb9/bin/uautomizer-YU5uOKAj3y/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0
[2021-11-13 18:39:37,942 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba1821d1-e2ee-48c8-bf8d-6f49f60f7fb9/bin/uautomizer-YU5uOKAj3y/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2021-11-13 18:39:37,942 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] ===
[2021-11-13 18:39:37,943 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-11-13 18:39:37,943 INFO L85 PathProgramCache]: Analyzing trace with hash -2046181951, now seen corresponding path program 1 times
[2021-11-13 18:39:37,943 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-11-13 18:39:37,943 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [741459688]
[2021-11-13 18:39:37,943 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-11-13 18:39:37,944 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2021-11-13 18:39:37,971 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2021-11-13 18:39:37,971 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [510074459]
[2021-11-13 18:39:37,971 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-11-13 18:39:37,977 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2021-11-13 18:39:37,977 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba1821d1-e2ee-48c8-bf8d-6f49f60f7fb9/bin/uautomizer-YU5uOKAj3y/z3
[2021-11-13 18:39:37,978 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba1821d1-e2ee-48c8-bf8d-6f49f60f7fb9/bin/uautomizer-YU5uOKAj3y/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2021-11-13 18:39:38,024 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba1821d1-e2ee-48c8-bf8d-6f49f60f7fb9/bin/uautomizer-YU5uOKAj3y/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process
[2021-11-13 18:39:38,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-11-13 18:39:38,146 INFO L263 TraceCheckSpWp]: Trace formula consists of 455 conjuncts, 6 conjunts are in the unsatisfiable core
[2021-11-13 18:39:38,150 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2021-11-13 18:39:38,794 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked.
[2021-11-13 18:39:38,794 INFO L328 TraceCheckSpWp]: Computing backward predicates...
[2021-11-13 18:39:39,490 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked.
[2021-11-13 18:39:39,491 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-11-13 18:39:39,491 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [741459688]
[2021-11-13 18:39:39,491 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown
[2021-11-13 18:39:39,492 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [510074459]
[2021-11-13 18:39:39,492 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [510074459] provided 1 perfect and 1 imperfect interpolant sequences
[2021-11-13 18:39:39,492 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2021-11-13 18:39:39,492 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [7] total 11
[2021-11-13 18:39:39,493 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [920184775]
[2021-11-13 18:39:39,493 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2021-11-13 18:39:39,494 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2021-11-13 18:39:39,494 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-11-13 18:39:39,495 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2021-11-13 18:39:39,495 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=78, Unknown=0, NotChecked=0, Total=110
[2021-11-13 18:39:39,498 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 210 out of 279
[2021-11-13 18:39:39,500 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 283 places, 250 transitions, 656 flow. Second operand has 7 states, 7 states have (on average 216.28571428571428) internal successors, (1514), 7 states have internal predecessors, (1514), 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 18:39:39,500 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2021-11-13 18:39:39,500 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 210 of 279
[2021-11-13 18:39:39,501 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2021-11-13 18:39:39,649 INFO L129 PetriNetUnfolder]: 17/334 cut-off events.
[2021-11-13 18:39:39,649 INFO L130 PetriNetUnfolder]: For 72/80 co-relation queries the response was YES.
[2021-11-13 18:39:39,651 INFO L84 FinitePrefix]: Finished finitePrefix Result has 546 conditions, 334 events. 17/334 cut-off events. For 72/80 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 381 event pairs, 2 based on Foata normal form. 1/330 useless extension candidates. Maximal degree in co-relation 524. Up to 67 conditions per place.
[2021-11-13 18:39:39,653 INFO L132 encePairwiseOnDemand]: 271/279 looper letters, 53 selfloop transitions, 7 changer transitions 0/253 dead transitions.
[2021-11-13 18:39:39,653 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 279 places, 253 transitions, 783 flow
[2021-11-13 18:39:39,654 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states.
[2021-11-13 18:39:39,654 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states.
[2021-11-13 18:39:39,671 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 1523 transitions.
[2021-11-13 18:39:39,672 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7798259088581669
[2021-11-13 18:39:39,672 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 1523 transitions.
[2021-11-13 18:39:39,672 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 1523 transitions.
[2021-11-13 18:39:39,673 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic.
[2021-11-13 18:39:39,674 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 1523 transitions.
[2021-11-13 18:39:39,679 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 217.57142857142858) internal successors, (1523), 7 states have internal predecessors, (1523), 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 18:39:39,684 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 279.0) internal successors, (2232), 8 states have internal predecessors, (2232), 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 18:39:39,686 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 279.0) internal successors, (2232), 8 states have internal predecessors, (2232), 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 18:39:39,686 INFO L186 Difference]: Start difference. First operand has 283 places, 250 transitions, 656 flow. Second operand 7 states and 1523 transitions.
[2021-11-13 18:39:39,686 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 279 places, 253 transitions, 783 flow
[2021-11-13 18:39:39,691 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 267 places, 253 transitions, 747 flow, removed 8 selfloop flow, removed 12 redundant places.
[2021-11-13 18:39:39,696 INFO L242 Difference]: Finished difference. Result has 270 places, 252 transitions, 653 flow
[2021-11-13 18:39:39,697 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=279, PETRI_DIFFERENCE_MINUEND_FLOW=620, PETRI_DIFFERENCE_MINUEND_PLACES=261, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=250, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=243, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=653, PETRI_PLACES=270, PETRI_TRANSITIONS=252}
[2021-11-13 18:39:39,697 INFO L334 CegarLoopForPetriNet]: 249 programPoint places, 21 predicate places.
[2021-11-13 18:39:39,697 INFO L470 AbstractCegarLoop]: Abstraction has has 270 places, 252 transitions, 653 flow
[2021-11-13 18:39:39,708 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 216.28571428571428) internal successors, (1514), 7 states have internal predecessors, (1514), 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 18:39:39,708 INFO L246 CegarLoopForPetriNet]: Found error trace
[2021-11-13 18:39:39,708 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:39:39,760 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba1821d1-e2ee-48c8-bf8d-6f49f60f7fb9/bin/uautomizer-YU5uOKAj3y/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0
[2021-11-13 18:39:39,930 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba1821d1-e2ee-48c8-bf8d-6f49f60f7fb9/bin/uautomizer-YU5uOKAj3y/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6
[2021-11-13 18:39:39,930 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] ===
[2021-11-13 18:39:39,931 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-11-13 18:39:39,931 INFO L85 PathProgramCache]: Analyzing trace with hash 1767131809, now seen corresponding path program 1 times
[2021-11-13 18:39:39,931 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-11-13 18:39:39,931 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1409378593]
[2021-11-13 18:39:39,931 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-11-13 18:39:39,931 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2021-11-13 18:39:39,947 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2021-11-13 18:39:39,947 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1833495219]
[2021-11-13 18:39:39,947 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-11-13 18:39:39,947 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2021-11-13 18:39:39,948 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba1821d1-e2ee-48c8-bf8d-6f49f60f7fb9/bin/uautomizer-YU5uOKAj3y/z3
[2021-11-13 18:39:39,948 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba1821d1-e2ee-48c8-bf8d-6f49f60f7fb9/bin/uautomizer-YU5uOKAj3y/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2021-11-13 18:39:39,974 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba1821d1-e2ee-48c8-bf8d-6f49f60f7fb9/bin/uautomizer-YU5uOKAj3y/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process
[2021-11-13 18:39:40,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-11-13 18:39:40,199 INFO L263 TraceCheckSpWp]: Trace formula consists of 467 conjuncts, 107 conjunts are in the unsatisfiable core
[2021-11-13 18:39:40,205 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2021-11-13 18:39:40,265 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5
[2021-11-13 18:39:40,612 INFO L354 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size
[2021-11-13 18:39:40,612 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 12 treesize of output 14
[2021-11-13 18:39:41,075 INFO L354 Elim1Store]: treesize reduction 44, result has 30.2 percent of original size
[2021-11-13 18:39:41,076 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 5 case distinctions, treesize of input 22 treesize of output 33
[2021-11-13 18:39:41,846 INFO L354 Elim1Store]: treesize reduction 62, result has 31.1 percent of original size
[2021-11-13 18:39:41,850 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 7 case distinctions, treesize of input 27 treesize of output 45
[2021-11-13 18:39:43,433 INFO L354 Elim1Store]: treesize reduction 24, result has 41.5 percent of original size
[2021-11-13 18:39:43,434 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 5 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 5 case distinctions, treesize of input 26 treesize of output 32
[2021-11-13 18:39:44,872 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 28
[2021-11-13 18:39:45,758 INFO L354 Elim1Store]: treesize reduction 29, result has 19.4 percent of original size
[2021-11-13 18:39:45,759 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 53 treesize of output 29
[2021-11-13 18:39:46,193 INFO L354 Elim1Store]: treesize reduction 29, result has 19.4 percent of original size
[2021-11-13 18:39:46,193 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 56 treesize of output 32
[2021-11-13 18:39:46,621 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 15
[2021-11-13 18:39:46,631 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 20
[2021-11-13 18:39:48,085 INFO L354 Elim1Store]: treesize reduction 41, result has 14.6 percent of original size
[2021-11-13 18:39:48,086 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 141 treesize of output 103
[2021-11-13 18:39:48,126 INFO L354 Elim1Store]: treesize reduction 92, result has 14.0 percent of original size
[2021-11-13 18:39:48,126 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 106 treesize of output 100
[2021-11-13 18:39:48,142 INFO L354 Elim1Store]: treesize reduction 41, result has 14.6 percent of original size
[2021-11-13 18:39:48,142 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 106 treesize of output 92
[2021-11-13 18:39:51,000 INFO L354 Elim1Store]: treesize reduction 7, result has 30.0 percent of original size
[2021-11-13 18:39:51,000 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 121 treesize of output 98
[2021-11-13 18:39:51,033 INFO L354 Elim1Store]: treesize reduction 7, result has 30.0 percent of original size
[2021-11-13 18:39:51,034 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 92 treesize of output 81
[2021-11-13 18:39:51,402 INFO L354 Elim1Store]: treesize reduction 158, result has 4.2 percent of original size
[2021-11-13 18:39:51,402 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 77 treesize of output 46
[2021-11-13 18:39:51,655 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked.
[2021-11-13 18:39:51,655 INFO L328 TraceCheckSpWp]: Computing backward predicates...
[2021-11-13 18:40:04,589 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size
[2021-11-13 18:40:04,590 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 418 treesize of output 362