./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/weaver/parallel-parallel-sum-2.wvr.c --full-output --architecture 32bit
--------------------------------------------------------------------------------
Checking for ERROR reachability
Using default analysis
Version 5e519f3a
Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d161bf1-07fc-43c6-82b1-602b81cc35e5/bin/uautomizer-Dbtcem3rbc/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d161bf1-07fc-43c6-82b1-602b81cc35e5/bin/uautomizer-Dbtcem3rbc/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d161bf1-07fc-43c6-82b1-602b81cc35e5/bin/uautomizer-Dbtcem3rbc/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d161bf1-07fc-43c6-82b1-602b81cc35e5/bin/uautomizer-Dbtcem3rbc/config/AutomizerReach.xml -i ../../sv-benchmarks/c/weaver/parallel-parallel-sum-2.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d161bf1-07fc-43c6-82b1-602b81cc35e5/bin/uautomizer-Dbtcem3rbc/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d161bf1-07fc-43c6-82b1-602b81cc35e5/bin/uautomizer-Dbtcem3rbc --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 c0b350b5c7953744a22c8334b20c4dc8efdff09f1ecb36de8b1744d1e20f0260
--- Real Ultimate output ---
[0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset.
This is Ultimate 0.2.2-dev-5e519f3
[2022-11-02 20:53:55,451 INFO L177 SettingsManager]: Resetting all preferences to default values...
[2022-11-02 20:53:55,453 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values
[2022-11-02 20:53:55,485 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2022-11-02 20:53:55,486 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2022-11-02 20:53:55,487 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2022-11-02 20:53:55,489 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2022-11-02 20:53:55,491 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values
[2022-11-02 20:53:55,493 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values
[2022-11-02 20:53:55,494 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values
[2022-11-02 20:53:55,496 INFO L181 SettingsManager]: Resetting Sifa preferences to default values
[2022-11-02 20:53:55,499 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2022-11-02 20:53:55,500 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values
[2022-11-02 20:53:55,506 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values
[2022-11-02 20:53:55,508 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2022-11-02 20:53:55,510 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values
[2022-11-02 20:53:55,512 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2022-11-02 20:53:55,514 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2022-11-02 20:53:55,516 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2022-11-02 20:53:55,518 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values
[2022-11-02 20:53:55,519 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2022-11-02 20:53:55,521 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values
[2022-11-02 20:53:55,522 INFO L181 SettingsManager]: Resetting Referee preferences to default values
[2022-11-02 20:53:55,523 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values
[2022-11-02 20:53:55,527 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2022-11-02 20:53:55,527 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2022-11-02 20:53:55,527 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values
[2022-11-02 20:53:55,529 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values
[2022-11-02 20:53:55,529 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values
[2022-11-02 20:53:55,530 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring...
[2022-11-02 20:53:55,531 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values
[2022-11-02 20:53:55,532 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values
[2022-11-02 20:53:55,533 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values
[2022-11-02 20:53:55,534 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values
[2022-11-02 20:53:55,535 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2022-11-02 20:53:55,535 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values
[2022-11-02 20:53:55,536 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring...
[2022-11-02 20:53:55,536 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring...
[2022-11-02 20:53:55,537 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values
[2022-11-02 20:53:55,538 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values
[2022-11-02 20:53:55,539 INFO L188 SettingsManager]: Finished resetting all preferences to default values...
[2022-11-02 20:53:55,540 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d161bf1-07fc-43c6-82b1-602b81cc35e5/bin/uautomizer-Dbtcem3rbc/config/svcomp-Reach-32bit-Automizer_Default.epf
[2022-11-02 20:53:55,563 INFO L113 SettingsManager]: Loading preferences was successful
[2022-11-02 20:53:55,564 INFO L115 SettingsManager]: Preferences different from defaults after loading the file:
[2022-11-02 20:53:55,564 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2022-11-02 20:53:55,564 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2022-11-02 20:53:55,565 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2022-11-02 20:53:55,565 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2022-11-02 20:53:55,566 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2022-11-02 20:53:55,566 INFO L138 SettingsManager]: * Create parallel compositions if possible=false
[2022-11-02 20:53:55,567 INFO L138 SettingsManager]: * Use SBE=true
[2022-11-02 20:53:55,567 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2022-11-02 20:53:55,567 INFO L138 SettingsManager]: * sizeof long=4
[2022-11-02 20:53:55,568 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true
[2022-11-02 20:53:55,568 INFO L138 SettingsManager]: * sizeof POINTER=4
[2022-11-02 20:53:55,568 INFO L138 SettingsManager]: * Check division by zero=IGNORE
[2022-11-02 20:53:55,568 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE
[2022-11-02 20:53:55,569 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE
[2022-11-02 20:53:55,569 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE
[2022-11-02 20:53:55,569 INFO L138 SettingsManager]: * sizeof long double=12
[2022-11-02 20:53:55,569 INFO L138 SettingsManager]: * Check if freed pointer was valid=false
[2022-11-02 20:53:55,570 INFO L138 SettingsManager]: * Use constant arrays=true
[2022-11-02 20:53:55,570 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE
[2022-11-02 20:53:55,570 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2022-11-02 20:53:55,570 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements
[2022-11-02 20:53:55,571 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode
[2022-11-02 20:53:55,571 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2022-11-02 20:53:55,571 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2022-11-02 20:53:55,571 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP
[2022-11-02 20:53:55,572 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2022-11-02 20:53:55,572 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL
[2022-11-02 20:53:55,572 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2022-11-02 20:53:55,572 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false
[2022-11-02 20:53:55,573 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET
[2022-11-02 20:53:55,573 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2022-11-02 20:53:55,573 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_5d161bf1-07fc-43c6-82b1-602b81cc35e5/bin/uautomizer-Dbtcem3rbc/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$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d161bf1-07fc-43c6-82b1-602b81cc35e5/bin/uautomizer-Dbtcem3rbc
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) )
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c0b350b5c7953744a22c8334b20c4dc8efdff09f1ecb36de8b1744d1e20f0260
[2022-11-02 20:53:55,820 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp
[2022-11-02 20:53:55,861 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2022-11-02 20:53:55,863 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2022-11-02 20:53:55,865 INFO L271 PluginConnector]: Initializing CDTParser...
[2022-11-02 20:53:55,866 INFO L275 PluginConnector]: CDTParser initialized
[2022-11-02 20:53:55,868 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d161bf1-07fc-43c6-82b1-602b81cc35e5/bin/uautomizer-Dbtcem3rbc/../../sv-benchmarks/c/weaver/parallel-parallel-sum-2.wvr.c
[2022-11-02 20:53:55,927 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d161bf1-07fc-43c6-82b1-602b81cc35e5/bin/uautomizer-Dbtcem3rbc/data/2ae5321df/7851541e38814e4096558fdc76f82c58/FLAGb67006f56
[2022-11-02 20:53:56,353 INFO L306 CDTParser]: Found 1 translation units.
[2022-11-02 20:53:56,354 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d161bf1-07fc-43c6-82b1-602b81cc35e5/sv-benchmarks/c/weaver/parallel-parallel-sum-2.wvr.c
[2022-11-02 20:53:56,361 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d161bf1-07fc-43c6-82b1-602b81cc35e5/bin/uautomizer-Dbtcem3rbc/data/2ae5321df/7851541e38814e4096558fdc76f82c58/FLAGb67006f56
[2022-11-02 20:53:56,743 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d161bf1-07fc-43c6-82b1-602b81cc35e5/bin/uautomizer-Dbtcem3rbc/data/2ae5321df/7851541e38814e4096558fdc76f82c58
[2022-11-02 20:53:56,746 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2022-11-02 20:53:56,747 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements.
[2022-11-02 20:53:56,753 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2022-11-02 20:53:56,753 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator...
[2022-11-02 20:53:56,757 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized
[2022-11-02 20:53:56,758 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 08:53:56" (1/1) ...
[2022-11-02 20:53:56,759 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6ac3186a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:53:56, skipping insertion in model container
[2022-11-02 20:53:56,760 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 08:53:56" (1/1) ...
[2022-11-02 20:53:56,767 INFO L145 MainTranslator]: Starting translation in SV-COMP mode
[2022-11-02 20:53:56,792 INFO L178 MainTranslator]: Built tables and reachable declarations
[2022-11-02 20:53:57,075 WARN L230 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_5d161bf1-07fc-43c6-82b1-602b81cc35e5/sv-benchmarks/c/weaver/parallel-parallel-sum-2.wvr.c[4225,4238]
[2022-11-02 20:53:57,093 INFO L210 PostProcessor]: Analyzing one entry point: main
[2022-11-02 20:53:57,113 INFO L203 MainTranslator]: Completed pre-run
[2022-11-02 20:53:57,167 WARN L230 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_5d161bf1-07fc-43c6-82b1-602b81cc35e5/sv-benchmarks/c/weaver/parallel-parallel-sum-2.wvr.c[4225,4238]
[2022-11-02 20:53:57,182 INFO L210 PostProcessor]: Analyzing one entry point: main
[2022-11-02 20:53:57,197 INFO L208 MainTranslator]: Completed translation
[2022-11-02 20:53:57,197 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:53:57 WrapperNode
[2022-11-02 20:53:57,197 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2022-11-02 20:53:57,198 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2022-11-02 20:53:57,199 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner...
[2022-11-02 20:53:57,199 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized
[2022-11-02 20:53:57,206 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:53:57" (1/1) ...
[2022-11-02 20:53:57,219 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:53:57" (1/1) ...
[2022-11-02 20:53:57,267 INFO L138 Inliner]: procedures = 29, calls = 88, calls flagged for inlining = 22, calls inlined = 32, statements flattened = 386
[2022-11-02 20:53:57,274 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2022-11-02 20:53:57,281 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2022-11-02 20:53:57,281 INFO L271 PluginConnector]: Initializing Boogie Preprocessor...
[2022-11-02 20:53:57,281 INFO L275 PluginConnector]: Boogie Preprocessor initialized
[2022-11-02 20:53:57,289 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:53:57" (1/1) ...
[2022-11-02 20:53:57,289 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:53:57" (1/1) ...
[2022-11-02 20:53:57,294 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:53:57" (1/1) ...
[2022-11-02 20:53:57,294 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:53:57" (1/1) ...
[2022-11-02 20:53:57,304 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:53:57" (1/1) ...
[2022-11-02 20:53:57,310 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:53:57" (1/1) ...
[2022-11-02 20:53:57,313 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:53:57" (1/1) ...
[2022-11-02 20:53:57,315 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:53:57" (1/1) ...
[2022-11-02 20:53:57,319 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2022-11-02 20:53:57,320 INFO L113 PluginConnector]: ------------------------RCFGBuilder----------------------------
[2022-11-02 20:53:57,320 INFO L271 PluginConnector]: Initializing RCFGBuilder...
[2022-11-02 20:53:57,320 INFO L275 PluginConnector]: RCFGBuilder initialized
[2022-11-02 20:53:57,325 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:53:57" (1/1) ...
[2022-11-02 20:53:57,332 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2022-11-02 20:53:57,358 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d161bf1-07fc-43c6-82b1-602b81cc35e5/bin/uautomizer-Dbtcem3rbc/z3
[2022-11-02 20:53:57,370 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d161bf1-07fc-43c6-82b1-602b81cc35e5/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null)
[2022-11-02 20:53:57,387 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d161bf1-07fc-43c6-82b1-602b81cc35e5/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process
[2022-11-02 20:53:57,418 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2022-11-02 20:53:57,418 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack
[2022-11-02 20:53:57,419 INFO L130 BoogieDeclarations]: Found specification of procedure write~int
[2022-11-02 20:53:57,419 INFO L130 BoogieDeclarations]: Found specification of procedure read~int
[2022-11-02 20:53:57,419 INFO L130 BoogieDeclarations]: Found specification of procedure thread1
[2022-11-02 20:53:57,419 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1
[2022-11-02 20:53:57,419 INFO L130 BoogieDeclarations]: Found specification of procedure thread2
[2022-11-02 20:53:57,420 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2
[2022-11-02 20:53:57,420 INFO L130 BoogieDeclarations]: Found specification of procedure thread3
[2022-11-02 20:53:57,420 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3
[2022-11-02 20:53:57,420 INFO L130 BoogieDeclarations]: Found specification of procedure thread4
[2022-11-02 20:53:57,420 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4
[2022-11-02 20:53:57,421 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int
[2022-11-02 20:53:57,421 INFO L130 BoogieDeclarations]: Found specification of procedure thread5
[2022-11-02 20:53:57,421 INFO L138 BoogieDeclarations]: Found implementation of procedure thread5
[2022-11-02 20:53:57,421 INFO L130 BoogieDeclarations]: Found specification of procedure thread6
[2022-11-02 20:53:57,421 INFO L138 BoogieDeclarations]: Found implementation of procedure thread6
[2022-11-02 20:53:57,421 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end
[2022-11-02 20:53:57,422 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin
[2022-11-02 20:53:57,422 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap
[2022-11-02 20:53:57,422 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2022-11-02 20:53:57,422 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2022-11-02 20:53:57,422 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2022-11-02 20:53:57,424 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement
[2022-11-02 20:53:57,584 INFO L235 CfgBuilder]: Building ICFG
[2022-11-02 20:53:57,586 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation
[2022-11-02 20:53:58,264 INFO L276 CfgBuilder]: Performing block encoding
[2022-11-02 20:53:58,567 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2022-11-02 20:53:58,567 INFO L300 CfgBuilder]: Removed 5 assume(true) statements.
[2022-11-02 20:53:58,571 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 08:53:58 BoogieIcfgContainer
[2022-11-02 20:53:58,571 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2022-11-02 20:53:58,575 INFO L113 PluginConnector]: ------------------------TraceAbstraction----------------------------
[2022-11-02 20:53:58,575 INFO L271 PluginConnector]: Initializing TraceAbstraction...
[2022-11-02 20:53:58,579 INFO L275 PluginConnector]: TraceAbstraction initialized
[2022-11-02 20:53:58,579 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.11 08:53:56" (1/3) ...
[2022-11-02 20:53:58,580 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@19c763dc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 08:53:58, skipping insertion in model container
[2022-11-02 20:53:58,581 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:53:57" (2/3) ...
[2022-11-02 20:53:58,581 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@19c763dc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 08:53:58, skipping insertion in model container
[2022-11-02 20:53:58,581 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 08:53:58" (3/3) ...
[2022-11-02 20:53:58,589 INFO L112 eAbstractionObserver]: Analyzing ICFG parallel-parallel-sum-2.wvr.c
[2022-11-02 20:53:58,598 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program
[2022-11-02 20:53:58,609 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2022-11-02 20:53:58,610 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2022-11-02 20:53:58,610 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances.
[2022-11-02 20:53:58,758 INFO L144 ThreadInstanceAdder]: Constructed 18 joinOtherThreadTransitions.
[2022-11-02 20:53:58,818 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 307 places, 311 transitions, 694 flow
[2022-11-02 20:53:59,016 INFO L130 PetriNetUnfolder]: 21/265 cut-off events.
[2022-11-02 20:53:59,018 INFO L131 PetriNetUnfolder]: For 6/6 co-relation queries the response was YES.
[2022-11-02 20:53:59,029 INFO L83 FinitePrefix]: Finished finitePrefix Result has 294 conditions, 265 events. 21/265 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 287 event pairs, 0 based on Foata normal form. 0/243 useless extension candidates. Maximal degree in co-relation 225. Up to 3 conditions per place.
[2022-11-02 20:53:59,029 INFO L82 GeneralOperation]: Start removeDead. Operand has 307 places, 311 transitions, 694 flow
[2022-11-02 20:53:59,043 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 254 places, 256 transitions, 560 flow
[2022-11-02 20:53:59,059 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2022-11-02 20:53:59,069 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@30dd6405, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2022-11-02 20:53:59,070 INFO L358 AbstractCegarLoop]: Starting to check reachability of 11 error locations.
[2022-11-02 20:53:59,149 INFO L130 PetriNetUnfolder]: 21/255 cut-off events.
[2022-11-02 20:53:59,149 INFO L131 PetriNetUnfolder]: For 6/6 co-relation queries the response was YES.
[2022-11-02 20:53:59,149 INFO L200 CegarLoopForPetriNet]: Found error trace
[2022-11-02 20:53:59,151 INFO L208 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]
[2022-11-02 20:53:59,152 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread1Err6INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] ===
[2022-11-02 20:53:59,158 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-11-02 20:53:59,158 INFO L85 PathProgramCache]: Analyzing trace with hash 1438536701, now seen corresponding path program 1 times
[2022-11-02 20:53:59,168 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-11-02 20:53:59,169 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1836355052]
[2022-11-02 20:53:59,169 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-11-02 20:53:59,169 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-11-02 20:53:59,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-11-02 20:53:59,598 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-11-02 20:53:59,599 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-11-02 20:53:59,599 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1836355052]
[2022-11-02 20:53:59,600 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1836355052] provided 1 perfect and 0 imperfect interpolant sequences
[2022-11-02 20:53:59,600 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-11-02 20:53:59,601 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2022-11-02 20:53:59,602 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [155773607]
[2022-11-02 20:53:59,603 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-11-02 20:53:59,614 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2022-11-02 20:53:59,614 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-11-02 20:53:59,650 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2022-11-02 20:53:59,653 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2022-11-02 20:53:59,657 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 264 out of 315
[2022-11-02 20:53:59,667 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 254 places, 256 transitions, 560 flow. Second operand has 2 states, 2 states have (on average 273.5) internal successors, (547), 2 states have internal predecessors, (547), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-11-02 20:53:59,667 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2022-11-02 20:53:59,667 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 264 of 315
[2022-11-02 20:53:59,668 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2022-11-02 20:54:00,114 INFO L130 PetriNetUnfolder]: 409/1072 cut-off events.
[2022-11-02 20:54:00,114 INFO L131 PetriNetUnfolder]: For 345/355 co-relation queries the response was YES.
[2022-11-02 20:54:00,122 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1956 conditions, 1072 events. 409/1072 cut-off events. For 345/355 co-relation queries the response was YES. Maximal size of possible extension queue 35. Compared 4707 event pairs, 192 based on Foata normal form. 170/1112 useless extension candidates. Maximal degree in co-relation 1710. Up to 553 conditions per place.
[2022-11-02 20:54:00,133 INFO L137 encePairwiseOnDemand]: 303/315 looper letters, 26 selfloop transitions, 0 changer transitions 5/244 dead transitions.
[2022-11-02 20:54:00,134 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 255 places, 244 transitions, 588 flow
[2022-11-02 20:54:00,135 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states.
[2022-11-02 20:54:00,138 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states.
[2022-11-02 20:54:00,153 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 566 transitions.
[2022-11-02 20:54:00,158 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.8984126984126984
[2022-11-02 20:54:00,159 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 566 transitions.
[2022-11-02 20:54:00,160 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 566 transitions.
[2022-11-02 20:54:00,164 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic.
[2022-11-02 20:54:00,167 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 566 transitions.
[2022-11-02 20:54:00,173 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 283.0) internal successors, (566), 2 states have internal predecessors, (566), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-11-02 20:54:00,181 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 315.0) internal successors, (945), 3 states have internal predecessors, (945), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-11-02 20:54:00,182 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 315.0) internal successors, (945), 3 states have internal predecessors, (945), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-11-02 20:54:00,184 INFO L175 Difference]: Start difference. First operand has 254 places, 256 transitions, 560 flow. Second operand 2 states and 566 transitions.
[2022-11-02 20:54:00,185 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 255 places, 244 transitions, 588 flow
[2022-11-02 20:54:00,197 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 243 places, 244 transitions, 556 flow, removed 0 selfloop flow, removed 12 redundant places.
[2022-11-02 20:54:00,204 INFO L231 Difference]: Finished difference. Result has 243 places, 239 transitions, 494 flow
[2022-11-02 20:54:00,207 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=315, PETRI_DIFFERENCE_MINUEND_FLOW=504, PETRI_DIFFERENCE_MINUEND_PLACES=242, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=244, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=244, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=494, PETRI_PLACES=243, PETRI_TRANSITIONS=239}
[2022-11-02 20:54:00,211 INFO L287 CegarLoopForPetriNet]: 254 programPoint places, -11 predicate places.
[2022-11-02 20:54:00,211 INFO L495 AbstractCegarLoop]: Abstraction has has 243 places, 239 transitions, 494 flow
[2022-11-02 20:54:00,212 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 273.5) internal successors, (547), 2 states have internal predecessors, (547), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-11-02 20:54:00,212 INFO L200 CegarLoopForPetriNet]: Found error trace
[2022-11-02 20:54:00,213 INFO L208 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]
[2022-11-02 20:54:00,213 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2022-11-02 20:54:00,214 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread1Err6INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] ===
[2022-11-02 20:54:00,214 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-11-02 20:54:00,215 INFO L85 PathProgramCache]: Analyzing trace with hash 263388517, now seen corresponding path program 1 times
[2022-11-02 20:54:00,215 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-11-02 20:54:00,216 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [650133973]
[2022-11-02 20:54:00,216 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-11-02 20:54:00,219 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-11-02 20:54:00,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-11-02 20:54:01,823 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-11-02 20:54:01,824 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-11-02 20:54:01,824 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [650133973]
[2022-11-02 20:54:01,824 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [650133973] provided 1 perfect and 0 imperfect interpolant sequences
[2022-11-02 20:54:01,824 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-11-02 20:54:01,825 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13
[2022-11-02 20:54:01,825 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [957095734]
[2022-11-02 20:54:01,825 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-11-02 20:54:01,827 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states
[2022-11-02 20:54:01,827 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-11-02 20:54:01,828 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants.
[2022-11-02 20:54:01,828 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=124, Unknown=0, NotChecked=0, Total=156
[2022-11-02 20:54:01,832 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 208 out of 315
[2022-11-02 20:54:01,836 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 243 places, 239 transitions, 494 flow. Second operand has 13 states, 13 states have (on average 212.46153846153845) internal successors, (2762), 13 states have internal predecessors, (2762), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-11-02 20:54:01,836 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2022-11-02 20:54:01,836 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 208 of 315
[2022-11-02 20:54:01,836 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2022-11-02 20:54:05,042 INFO L130 PetriNetUnfolder]: 2512/6046 cut-off events.
[2022-11-02 20:54:05,042 INFO L131 PetriNetUnfolder]: For 512/528 co-relation queries the response was YES.
[2022-11-02 20:54:05,066 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10095 conditions, 6046 events. 2512/6046 cut-off events. For 512/528 co-relation queries the response was YES. Maximal size of possible extension queue 189. Compared 46992 event pairs, 445 based on Foata normal form. 52/5339 useless extension candidates. Maximal degree in co-relation 10092. Up to 780 conditions per place.
[2022-11-02 20:54:05,095 INFO L137 encePairwiseOnDemand]: 297/315 looper letters, 179 selfloop transitions, 16 changer transitions 145/504 dead transitions.
[2022-11-02 20:54:05,095 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 258 places, 504 transitions, 1824 flow
[2022-11-02 20:54:05,096 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states.
[2022-11-02 20:54:05,096 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states.
[2022-11-02 20:54:05,103 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 4713 transitions.
[2022-11-02 20:54:05,105 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.7124716553287982
[2022-11-02 20:54:05,105 INFO L72 ComplementDD]: Start complementDD. Operand 21 states and 4713 transitions.
[2022-11-02 20:54:05,105 INFO L73 IsDeterministic]: Start isDeterministic. Operand 21 states and 4713 transitions.
[2022-11-02 20:54:05,108 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic.
[2022-11-02 20:54:05,108 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 21 states and 4713 transitions.
[2022-11-02 20:54:05,119 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 22 states, 21 states have (on average 224.42857142857142) internal successors, (4713), 21 states have internal predecessors, (4713), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-11-02 20:54:05,131 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 22 states, 22 states have (on average 315.0) internal successors, (6930), 22 states have internal predecessors, (6930), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-11-02 20:54:05,136 INFO L81 ComplementDD]: Finished complementDD. Result has 22 states, 22 states have (on average 315.0) internal successors, (6930), 22 states have internal predecessors, (6930), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-11-02 20:54:05,136 INFO L175 Difference]: Start difference. First operand has 243 places, 239 transitions, 494 flow. Second operand 21 states and 4713 transitions.
[2022-11-02 20:54:05,136 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 258 places, 504 transitions, 1824 flow
[2022-11-02 20:54:05,140 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 258 places, 504 transitions, 1824 flow, removed 0 selfloop flow, removed 0 redundant places.
[2022-11-02 20:54:05,147 INFO L231 Difference]: Finished difference. Result has 269 places, 250 transitions, 596 flow
[2022-11-02 20:54:05,147 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=315, PETRI_DIFFERENCE_MINUEND_FLOW=494, PETRI_DIFFERENCE_MINUEND_PLACES=238, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=239, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=227, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=596, PETRI_PLACES=269, PETRI_TRANSITIONS=250}
[2022-11-02 20:54:05,148 INFO L287 CegarLoopForPetriNet]: 254 programPoint places, 15 predicate places.
[2022-11-02 20:54:05,148 INFO L495 AbstractCegarLoop]: Abstraction has has 269 places, 250 transitions, 596 flow
[2022-11-02 20:54:05,150 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 212.46153846153845) internal successors, (2762), 13 states have internal predecessors, (2762), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-11-02 20:54:05,150 INFO L200 CegarLoopForPetriNet]: Found error trace
[2022-11-02 20:54:05,150 INFO L208 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]
[2022-11-02 20:54:05,151 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2022-11-02 20:54:05,151 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread1Err6INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] ===
[2022-11-02 20:54:05,151 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-11-02 20:54:05,151 INFO L85 PathProgramCache]: Analyzing trace with hash -1395951233, now seen corresponding path program 1 times
[2022-11-02 20:54:05,152 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-11-02 20:54:05,152 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [242638613]
[2022-11-02 20:54:05,152 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-11-02 20:54:05,152 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-11-02 20:54:05,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-11-02 20:54:06,034 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-11-02 20:54:06,036 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-11-02 20:54:06,036 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [242638613]
[2022-11-02 20:54:06,036 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [242638613] provided 1 perfect and 0 imperfect interpolant sequences
[2022-11-02 20:54:06,038 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-11-02 20:54:06,038 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12
[2022-11-02 20:54:06,038 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [501807135]
[2022-11-02 20:54:06,039 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-11-02 20:54:06,039 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states
[2022-11-02 20:54:06,040 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-11-02 20:54:06,040 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants.
[2022-11-02 20:54:06,041 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132
[2022-11-02 20:54:06,046 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 208 out of 315
[2022-11-02 20:54:06,050 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 269 places, 250 transitions, 596 flow. Second operand has 12 states, 12 states have (on average 213.0) internal successors, (2556), 12 states have internal predecessors, (2556), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-11-02 20:54:06,051 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2022-11-02 20:54:06,052 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 208 of 315
[2022-11-02 20:54:06,052 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2022-11-02 20:54:07,706 INFO L130 PetriNetUnfolder]: 1643/3892 cut-off events.
[2022-11-02 20:54:07,707 INFO L131 PetriNetUnfolder]: For 845/856 co-relation queries the response was YES.
[2022-11-02 20:54:07,725 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7286 conditions, 3892 events. 1643/3892 cut-off events. For 845/856 co-relation queries the response was YES. Maximal size of possible extension queue 112. Compared 26622 event pairs, 853 based on Foata normal form. 24/3432 useless extension candidates. Maximal degree in co-relation 7271. Up to 2114 conditions per place.
[2022-11-02 20:54:07,804 INFO L137 encePairwiseOnDemand]: 301/315 looper letters, 78 selfloop transitions, 4 changer transitions 53/298 dead transitions.
[2022-11-02 20:54:07,804 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 269 places, 298 transitions, 999 flow
[2022-11-02 20:54:07,809 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states.
[2022-11-02 20:54:07,809 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states.
[2022-11-02 20:54:07,813 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 2628 transitions.
[2022-11-02 20:54:07,815 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.6952380952380952
[2022-11-02 20:54:07,815 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 2628 transitions.
[2022-11-02 20:54:07,815 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 2628 transitions.
[2022-11-02 20:54:07,817 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic.
[2022-11-02 20:54:07,818 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 2628 transitions.
[2022-11-02 20:54:07,823 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 219.0) internal successors, (2628), 12 states have internal predecessors, (2628), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-11-02 20:54:07,831 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 315.0) internal successors, (4095), 13 states have internal predecessors, (4095), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-11-02 20:54:07,833 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 315.0) internal successors, (4095), 13 states have internal predecessors, (4095), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-11-02 20:54:07,833 INFO L175 Difference]: Start difference. First operand has 269 places, 250 transitions, 596 flow. Second operand 12 states and 2628 transitions.
[2022-11-02 20:54:07,833 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 269 places, 298 transitions, 999 flow
[2022-11-02 20:54:07,838 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 261 places, 298 transitions, 983 flow, removed 6 selfloop flow, removed 8 redundant places.
[2022-11-02 20:54:07,842 INFO L231 Difference]: Finished difference. Result has 264 places, 242 transitions, 556 flow
[2022-11-02 20:54:07,843 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=315, PETRI_DIFFERENCE_MINUEND_FLOW=564, PETRI_DIFFERENCE_MINUEND_PLACES=250, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=247, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=243, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=556, PETRI_PLACES=264, PETRI_TRANSITIONS=242}
[2022-11-02 20:54:07,843 INFO L287 CegarLoopForPetriNet]: 254 programPoint places, 10 predicate places.
[2022-11-02 20:54:07,844 INFO L495 AbstractCegarLoop]: Abstraction has has 264 places, 242 transitions, 556 flow
[2022-11-02 20:54:07,845 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 213.0) internal successors, (2556), 12 states have internal predecessors, (2556), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-11-02 20:54:07,845 INFO L200 CegarLoopForPetriNet]: Found error trace
[2022-11-02 20:54:07,845 INFO L208 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]
[2022-11-02 20:54:07,846 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2022-11-02 20:54:07,846 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread1Err6INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] ===
[2022-11-02 20:54:07,847 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-11-02 20:54:07,847 INFO L85 PathProgramCache]: Analyzing trace with hash -164661684, now seen corresponding path program 1 times
[2022-11-02 20:54:07,847 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-11-02 20:54:07,847 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1241363499]
[2022-11-02 20:54:07,847 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-11-02 20:54:07,848 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-11-02 20:54:07,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-11-02 20:54:09,256 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked.
[2022-11-02 20:54:09,256 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-11-02 20:54:09,257 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1241363499]
[2022-11-02 20:54:09,257 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1241363499] provided 1 perfect and 0 imperfect interpolant sequences
[2022-11-02 20:54:09,258 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-11-02 20:54:09,258 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10
[2022-11-02 20:54:09,258 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1419037728]
[2022-11-02 20:54:09,258 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-11-02 20:54:09,260 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states
[2022-11-02 20:54:09,264 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-11-02 20:54:09,265 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants.
[2022-11-02 20:54:09,265 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90
[2022-11-02 20:54:09,268 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 228 out of 315
[2022-11-02 20:54:09,272 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 264 places, 242 transitions, 556 flow. Second operand has 10 states, 10 states have (on average 232.5) internal successors, (2325), 10 states have internal predecessors, (2325), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-11-02 20:54:09,272 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2022-11-02 20:54:09,272 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 228 of 315
[2022-11-02 20:54:09,273 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2022-11-02 20:54:10,601 INFO L130 PetriNetUnfolder]: 1535/4035 cut-off events.
[2022-11-02 20:54:10,602 INFO L131 PetriNetUnfolder]: For 1011/1020 co-relation queries the response was YES.
[2022-11-02 20:54:10,621 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7364 conditions, 4035 events. 1535/4035 cut-off events. For 1011/1020 co-relation queries the response was YES. Maximal size of possible extension queue 149. Compared 29672 event pairs, 313 based on Foata normal form. 1/3596 useless extension candidates. Maximal degree in co-relation 7351. Up to 1100 conditions per place.
[2022-11-02 20:54:10,642 INFO L137 encePairwiseOnDemand]: 302/315 looper letters, 111 selfloop transitions, 13 changer transitions 8/313 dead transitions.
[2022-11-02 20:54:10,646 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 261 places, 313 transitions, 1025 flow
[2022-11-02 20:54:10,646 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states.
[2022-11-02 20:54:10,647 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states.
[2022-11-02 20:54:10,650 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 2411 transitions.
[2022-11-02 20:54:10,652 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.7653968253968254
[2022-11-02 20:54:10,652 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 2411 transitions.
[2022-11-02 20:54:10,653 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 2411 transitions.
[2022-11-02 20:54:10,654 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic.
[2022-11-02 20:54:10,654 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 2411 transitions.
[2022-11-02 20:54:10,660 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 241.1) internal successors, (2411), 10 states have internal predecessors, (2411), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-11-02 20:54:10,671 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 315.0) internal successors, (3465), 11 states have internal predecessors, (3465), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-11-02 20:54:10,673 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 315.0) internal successors, (3465), 11 states have internal predecessors, (3465), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-11-02 20:54:10,673 INFO L175 Difference]: Start difference. First operand has 264 places, 242 transitions, 556 flow. Second operand 10 states and 2411 transitions.
[2022-11-02 20:54:10,673 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 261 places, 313 transitions, 1025 flow
[2022-11-02 20:54:10,680 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 252 places, 313 transitions, 1003 flow, removed 7 selfloop flow, removed 9 redundant places.
[2022-11-02 20:54:10,684 INFO L231 Difference]: Finished difference. Result has 257 places, 249 transitions, 607 flow
[2022-11-02 20:54:10,685 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=315, PETRI_DIFFERENCE_MINUEND_FLOW=534, PETRI_DIFFERENCE_MINUEND_PLACES=243, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=242, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=232, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=607, PETRI_PLACES=257, PETRI_TRANSITIONS=249}
[2022-11-02 20:54:10,687 INFO L287 CegarLoopForPetriNet]: 254 programPoint places, 3 predicate places.
[2022-11-02 20:54:10,687 INFO L495 AbstractCegarLoop]: Abstraction has has 257 places, 249 transitions, 607 flow
[2022-11-02 20:54:10,688 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 232.5) internal successors, (2325), 10 states have internal predecessors, (2325), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-11-02 20:54:10,688 INFO L200 CegarLoopForPetriNet]: Found error trace
[2022-11-02 20:54:10,689 INFO L208 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]
[2022-11-02 20:54:10,689 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3
[2022-11-02 20:54:10,689 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread1Err6INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] ===
[2022-11-02 20:54:10,690 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-11-02 20:54:10,690 INFO L85 PathProgramCache]: Analyzing trace with hash -150248614, now seen corresponding path program 1 times
[2022-11-02 20:54:10,690 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-11-02 20:54:10,691 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [7085982]
[2022-11-02 20:54:10,691 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-11-02 20:54:10,691 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-11-02 20:54:10,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-11-02 20:54:11,767 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked.
[2022-11-02 20:54:11,768 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-11-02 20:54:11,768 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [7085982]
[2022-11-02 20:54:11,768 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [7085982] provided 1 perfect and 0 imperfect interpolant sequences
[2022-11-02 20:54:11,768 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-11-02 20:54:11,768 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10
[2022-11-02 20:54:11,768 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1080231619]
[2022-11-02 20:54:11,768 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-11-02 20:54:11,769 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states
[2022-11-02 20:54:11,769 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-11-02 20:54:11,770 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants.
[2022-11-02 20:54:11,770 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90
[2022-11-02 20:54:11,772 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 228 out of 315
[2022-11-02 20:54:11,775 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 257 places, 249 transitions, 607 flow. Second operand has 10 states, 10 states have (on average 232.5) internal successors, (2325), 10 states have internal predecessors, (2325), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-11-02 20:54:11,775 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2022-11-02 20:54:11,775 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 228 of 315
[2022-11-02 20:54:11,775 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2022-11-02 20:54:13,345 INFO L130 PetriNetUnfolder]: 1535/4010 cut-off events.
[2022-11-02 20:54:13,345 INFO L131 PetriNetUnfolder]: For 1581/1591 co-relation queries the response was YES.
[2022-11-02 20:54:13,363 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8036 conditions, 4010 events. 1535/4010 cut-off events. For 1581/1591 co-relation queries the response was YES. Maximal size of possible extension queue 139. Compared 29160 event pairs, 193 based on Foata normal form. 1/3575 useless extension candidates. Maximal degree in co-relation 8023. Up to 1100 conditions per place.
[2022-11-02 20:54:13,385 INFO L137 encePairwiseOnDemand]: 302/315 looper letters, 106 selfloop transitions, 15 changer transitions 8/310 dead transitions.
[2022-11-02 20:54:13,385 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 263 places, 310 transitions, 1077 flow
[2022-11-02 20:54:13,385 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states.
[2022-11-02 20:54:13,386 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states.
[2022-11-02 20:54:13,390 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 2406 transitions.
[2022-11-02 20:54:13,392 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.7638095238095238
[2022-11-02 20:54:13,392 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 2406 transitions.
[2022-11-02 20:54:13,392 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 2406 transitions.
[2022-11-02 20:54:13,394 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic.
[2022-11-02 20:54:13,394 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 2406 transitions.
[2022-11-02 20:54:13,401 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 240.6) internal successors, (2406), 10 states have internal predecessors, (2406), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-11-02 20:54:13,406 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 315.0) internal successors, (3465), 11 states have internal predecessors, (3465), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-11-02 20:54:13,409 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 315.0) internal successors, (3465), 11 states have internal predecessors, (3465), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-11-02 20:54:13,409 INFO L175 Difference]: Start difference. First operand has 257 places, 249 transitions, 607 flow. Second operand 10 states and 2406 transitions.
[2022-11-02 20:54:13,409 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 263 places, 310 transitions, 1077 flow
[2022-11-02 20:54:13,417 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 257 places, 310 transitions, 1052 flow, removed 8 selfloop flow, removed 6 redundant places.
[2022-11-02 20:54:13,426 INFO L231 Difference]: Finished difference. Result has 262 places, 252 transitions, 659 flow
[2022-11-02 20:54:13,427 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=315, PETRI_DIFFERENCE_MINUEND_FLOW=593, PETRI_DIFFERENCE_MINUEND_PLACES=248, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=249, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=236, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=659, PETRI_PLACES=262, PETRI_TRANSITIONS=252}
[2022-11-02 20:54:13,429 INFO L287 CegarLoopForPetriNet]: 254 programPoint places, 8 predicate places.
[2022-11-02 20:54:13,429 INFO L495 AbstractCegarLoop]: Abstraction has has 262 places, 252 transitions, 659 flow
[2022-11-02 20:54:13,439 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 232.5) internal successors, (2325), 10 states have internal predecessors, (2325), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-11-02 20:54:13,445 INFO L200 CegarLoopForPetriNet]: Found error trace
[2022-11-02 20:54:13,446 INFO L208 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]
[2022-11-02 20:54:13,446 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4
[2022-11-02 20:54:13,446 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread1Err6INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] ===
[2022-11-02 20:54:13,447 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-11-02 20:54:13,447 INFO L85 PathProgramCache]: Analyzing trace with hash 9380976, now seen corresponding path program 1 times
[2022-11-02 20:54:13,449 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-11-02 20:54:13,449 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1111964933]
[2022-11-02 20:54:13,450 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-11-02 20:54:13,450 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-11-02 20:54:13,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-11-02 20:54:14,473 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-11-02 20:54:14,474 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-11-02 20:54:14,474 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1111964933]
[2022-11-02 20:54:14,474 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1111964933] provided 0 perfect and 1 imperfect interpolant sequences
[2022-11-02 20:54:14,474 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [991633163]
[2022-11-02 20:54:14,474 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-11-02 20:54:14,475 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2022-11-02 20:54:14,475 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d161bf1-07fc-43c6-82b1-602b81cc35e5/bin/uautomizer-Dbtcem3rbc/z3
[2022-11-02 20:54:14,481 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d161bf1-07fc-43c6-82b1-602b81cc35e5/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2022-11-02 20:54:14,492 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d161bf1-07fc-43c6-82b1-602b81cc35e5/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process
[2022-11-02 20:54:14,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-11-02 20:54:14,752 INFO L263 TraceCheckSpWp]: Trace formula consists of 614 conjuncts, 16 conjunts are in the unsatisfiable core
[2022-11-02 20:54:14,764 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2022-11-02 20:54:15,517 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked.
[2022-11-02 20:54:15,518 INFO L328 TraceCheckSpWp]: Computing backward predicates...
[2022-11-02 20:54:15,905 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked.
[2022-11-02 20:54:15,905 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [991633163] provided 0 perfect and 2 imperfect interpolant sequences
[2022-11-02 20:54:15,906 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2022-11-02 20:54:15,906 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 11, 11] total 29
[2022-11-02 20:54:15,906 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1321930998]
[2022-11-02 20:54:15,906 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2022-11-02 20:54:15,907 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 29 states
[2022-11-02 20:54:15,908 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-11-02 20:54:15,908 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants.
[2022-11-02 20:54:15,909 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=86, Invalid=726, Unknown=0, NotChecked=0, Total=812
[2022-11-02 20:54:15,914 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 203 out of 315
[2022-11-02 20:54:15,920 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 262 places, 252 transitions, 659 flow. Second operand has 29 states, 29 states have (on average 208.13793103448276) internal successors, (6036), 29 states have internal predecessors, (6036), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-11-02 20:54:15,920 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2022-11-02 20:54:15,920 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 203 of 315
[2022-11-02 20:54:15,921 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2022-11-02 20:54:25,418 INFO L130 PetriNetUnfolder]: 6819/15633 cut-off events.
[2022-11-02 20:54:25,418 INFO L131 PetriNetUnfolder]: For 8513/8521 co-relation queries the response was YES.
[2022-11-02 20:54:25,518 INFO L83 FinitePrefix]: Finished finitePrefix Result has 33154 conditions, 15633 events. 6819/15633 cut-off events. For 8513/8521 co-relation queries the response was YES. Maximal size of possible extension queue 525. Compared 142069 event pairs, 443 based on Foata normal form. 176/14132 useless extension candidates. Maximal degree in co-relation 33139. Up to 1378 conditions per place.
[2022-11-02 20:54:25,593 INFO L137 encePairwiseOnDemand]: 289/315 looper letters, 561 selfloop transitions, 103 changer transitions 245/1068 dead transitions.
[2022-11-02 20:54:25,593 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 318 places, 1068 transitions, 5228 flow
[2022-11-02 20:54:25,594 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 60 states.
[2022-11-02 20:54:25,594 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 60 states.
[2022-11-02 20:54:25,616 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 13074 transitions.
[2022-11-02 20:54:25,623 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.6917460317460318
[2022-11-02 20:54:25,623 INFO L72 ComplementDD]: Start complementDD. Operand 60 states and 13074 transitions.
[2022-11-02 20:54:25,624 INFO L73 IsDeterministic]: Start isDeterministic. Operand 60 states and 13074 transitions.
[2022-11-02 20:54:25,632 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic.
[2022-11-02 20:54:25,632 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 60 states and 13074 transitions.
[2022-11-02 20:54:25,663 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 61 states, 60 states have (on average 217.9) internal successors, (13074), 60 states have internal predecessors, (13074), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-11-02 20:54:25,698 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 61 states, 61 states have (on average 315.0) internal successors, (19215), 61 states have internal predecessors, (19215), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-11-02 20:54:25,706 INFO L81 ComplementDD]: Finished complementDD. Result has 61 states, 61 states have (on average 315.0) internal successors, (19215), 61 states have internal predecessors, (19215), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-11-02 20:54:25,706 INFO L175 Difference]: Start difference. First operand has 262 places, 252 transitions, 659 flow. Second operand 60 states and 13074 transitions.
[2022-11-02 20:54:25,706 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 318 places, 1068 transitions, 5228 flow
[2022-11-02 20:54:25,739 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 311 places, 1068 transitions, 5080 flow, removed 45 selfloop flow, removed 7 redundant places.
[2022-11-02 20:54:25,751 INFO L231 Difference]: Finished difference. Result has 358 places, 341 transitions, 1526 flow
[2022-11-02 20:54:25,752 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=315, PETRI_DIFFERENCE_MINUEND_FLOW=634, PETRI_DIFFERENCE_MINUEND_PLACES=252, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=252, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=20, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=224, PETRI_DIFFERENCE_SUBTRAHEND_STATES=60, PETRI_FLOW=1526, PETRI_PLACES=358, PETRI_TRANSITIONS=341}
[2022-11-02 20:54:25,753 INFO L287 CegarLoopForPetriNet]: 254 programPoint places, 104 predicate places.
[2022-11-02 20:54:25,753 INFO L495 AbstractCegarLoop]: Abstraction has has 358 places, 341 transitions, 1526 flow
[2022-11-02 20:54:25,755 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 29 states have (on average 208.13793103448276) internal successors, (6036), 29 states have internal predecessors, (6036), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-11-02 20:54:25,756 INFO L200 CegarLoopForPetriNet]: Found error trace
[2022-11-02 20:54:25,756 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-11-02 20:54:25,805 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d161bf1-07fc-43c6-82b1-602b81cc35e5/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0
[2022-11-02 20:54:25,981 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d161bf1-07fc-43c6-82b1-602b81cc35e5/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2022-11-02 20:54:25,982 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread1Err6INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] ===
[2022-11-02 20:54:25,982 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-11-02 20:54:25,983 INFO L85 PathProgramCache]: Analyzing trace with hash -1896035896, now seen corresponding path program 1 times
[2022-11-02 20:54:25,983 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-11-02 20:54:25,983 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1805168125]
[2022-11-02 20:54:25,983 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-11-02 20:54:25,983 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-11-02 20:54:26,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-11-02 20:54:27,047 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 1 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-11-02 20:54:27,047 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-11-02 20:54:27,047 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1805168125]
[2022-11-02 20:54:27,048 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1805168125] provided 0 perfect and 1 imperfect interpolant sequences
[2022-11-02 20:54:27,048 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1529152602]
[2022-11-02 20:54:27,048 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-11-02 20:54:27,048 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2022-11-02 20:54:27,048 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d161bf1-07fc-43c6-82b1-602b81cc35e5/bin/uautomizer-Dbtcem3rbc/z3
[2022-11-02 20:54:27,049 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d161bf1-07fc-43c6-82b1-602b81cc35e5/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2022-11-02 20:54:27,074 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d161bf1-07fc-43c6-82b1-602b81cc35e5/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process
[2022-11-02 20:54:27,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-11-02 20:54:27,273 INFO L263 TraceCheckSpWp]: Trace formula consists of 627 conjuncts, 16 conjunts are in the unsatisfiable core
[2022-11-02 20:54:27,280 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2022-11-02 20:54:27,876 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked.
[2022-11-02 20:54:27,876 INFO L328 TraceCheckSpWp]: Computing backward predicates...
[2022-11-02 20:54:28,283 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked.
[2022-11-02 20:54:28,283 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1529152602] provided 0 perfect and 2 imperfect interpolant sequences
[2022-11-02 20:54:28,283 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2022-11-02 20:54:28,283 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 11, 11] total 31
[2022-11-02 20:54:28,283 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [42759310]
[2022-11-02 20:54:28,284 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2022-11-02 20:54:28,285 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 31 states
[2022-11-02 20:54:28,285 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-11-02 20:54:28,285 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants.
[2022-11-02 20:54:28,286 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=91, Invalid=839, Unknown=0, NotChecked=0, Total=930
[2022-11-02 20:54:28,293 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 203 out of 315
[2022-11-02 20:54:28,299 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 358 places, 341 transitions, 1526 flow. Second operand has 31 states, 31 states have (on average 207.90322580645162) internal successors, (6445), 31 states have internal predecessors, (6445), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-11-02 20:54:28,299 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2022-11-02 20:54:28,299 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 203 of 315
[2022-11-02 20:54:28,299 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2022-11-02 20:54:37,190 INFO L130 PetriNetUnfolder]: 7947/17783 cut-off events.
[2022-11-02 20:54:37,191 INFO L131 PetriNetUnfolder]: For 98413/98420 co-relation queries the response was YES.
[2022-11-02 20:54:37,407 INFO L83 FinitePrefix]: Finished finitePrefix Result has 58211 conditions, 17783 events. 7947/17783 cut-off events. For 98413/98420 co-relation queries the response was YES. Maximal size of possible extension queue 575. Compared 163625 event pairs, 727 based on Foata normal form. 141/15842 useless extension candidates. Maximal degree in co-relation 58152. Up to 3718 conditions per place.
[2022-11-02 20:54:37,507 INFO L137 encePairwiseOnDemand]: 290/315 looper letters, 271 selfloop transitions, 69 changer transitions 256/755 dead transitions.
[2022-11-02 20:54:37,508 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 365 places, 755 transitions, 5592 flow
[2022-11-02 20:54:37,508 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states.
[2022-11-02 20:54:37,508 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38 states.
[2022-11-02 20:54:37,515 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 8220 transitions.
[2022-11-02 20:54:37,519 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.6867167919799498
[2022-11-02 20:54:37,519 INFO L72 ComplementDD]: Start complementDD. Operand 38 states and 8220 transitions.
[2022-11-02 20:54:37,519 INFO L73 IsDeterministic]: Start isDeterministic. Operand 38 states and 8220 transitions.
[2022-11-02 20:54:37,522 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic.
[2022-11-02 20:54:37,523 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 38 states and 8220 transitions.
[2022-11-02 20:54:37,535 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 39 states, 38 states have (on average 216.31578947368422) internal successors, (8220), 38 states have internal predecessors, (8220), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-11-02 20:54:37,550 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 39 states, 39 states have (on average 315.0) internal successors, (12285), 39 states have internal predecessors, (12285), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-11-02 20:54:37,555 INFO L81 ComplementDD]: Finished complementDD. Result has 39 states, 39 states have (on average 315.0) internal successors, (12285), 39 states have internal predecessors, (12285), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-11-02 20:54:37,555 INFO L175 Difference]: Start difference. First operand has 358 places, 341 transitions, 1526 flow. Second operand 38 states and 8220 transitions.
[2022-11-02 20:54:37,556 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 365 places, 755 transitions, 5592 flow
[2022-11-02 20:54:38,151 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 333 places, 755 transitions, 4626 flow, removed 435 selfloop flow, removed 32 redundant places.
[2022-11-02 20:54:38,166 INFO L231 Difference]: Finished difference. Result has 357 places, 330 transitions, 1517 flow
[2022-11-02 20:54:38,167 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=315, PETRI_DIFFERENCE_MINUEND_FLOW=1167, PETRI_DIFFERENCE_MINUEND_PLACES=296, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=326, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=51, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=271, PETRI_DIFFERENCE_SUBTRAHEND_STATES=38, PETRI_FLOW=1517, PETRI_PLACES=357, PETRI_TRANSITIONS=330}
[2022-11-02 20:54:38,168 INFO L287 CegarLoopForPetriNet]: 254 programPoint places, 103 predicate places.
[2022-11-02 20:54:38,168 INFO L495 AbstractCegarLoop]: Abstraction has has 357 places, 330 transitions, 1517 flow
[2022-11-02 20:54:38,170 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 31 states, 31 states have (on average 207.90322580645162) internal successors, (6445), 31 states have internal predecessors, (6445), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-11-02 20:54:38,170 INFO L200 CegarLoopForPetriNet]: Found error trace
[2022-11-02 20:54:38,171 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-11-02 20:54:38,208 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d161bf1-07fc-43c6-82b1-602b81cc35e5/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0
[2022-11-02 20:54:38,389 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d161bf1-07fc-43c6-82b1-602b81cc35e5/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2022-11-02 20:54:38,389 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread1Err6INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] ===
[2022-11-02 20:54:38,390 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-11-02 20:54:38,390 INFO L85 PathProgramCache]: Analyzing trace with hash -1264823088, now seen corresponding path program 1 times
[2022-11-02 20:54:38,390 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-11-02 20:54:38,390 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [807960973]
[2022-11-02 20:54:38,390 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-11-02 20:54:38,390 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-11-02 20:54:38,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-11-02 20:54:43,349 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-11-02 20:54:43,349 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-11-02 20:54:43,349 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [807960973]
[2022-11-02 20:54:43,349 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [807960973] provided 0 perfect and 1 imperfect interpolant sequences
[2022-11-02 20:54:43,349 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1674827049]
[2022-11-02 20:54:43,349 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-11-02 20:54:43,350 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2022-11-02 20:54:43,350 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d161bf1-07fc-43c6-82b1-602b81cc35e5/bin/uautomizer-Dbtcem3rbc/z3
[2022-11-02 20:54:43,351 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d161bf1-07fc-43c6-82b1-602b81cc35e5/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2022-11-02 20:54:43,373 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d161bf1-07fc-43c6-82b1-602b81cc35e5/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process
[2022-11-02 20:54:43,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-11-02 20:54:43,617 INFO L263 TraceCheckSpWp]: Trace formula consists of 658 conjuncts, 113 conjunts are in the unsatisfiable core
[2022-11-02 20:54:43,628 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2022-11-02 20:54:44,883 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 15 treesize of output 11
[2022-11-02 20:54:46,108 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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
[2022-11-02 20:54:46,511 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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
[2022-11-02 20:54:46,724 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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
[2022-11-02 20:54:47,193 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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
[2022-11-02 20:54:47,421 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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
[2022-11-02 20:54:47,649 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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
[2022-11-02 20:54:48,325 INFO L356 Elim1Store]: treesize reduction 11, result has 21.4 percent of original size
[2022-11-02 20:54:48,325 INFO L390 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 26 treesize of output 12
[2022-11-02 20:54:49,274 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-11-02 20:54:49,274 INFO L328 TraceCheckSpWp]: Computing backward predicates...
[2022-11-02 20:55:16,201 WARN L234 SmtUtils]: Spent 10.02s on a formula simplification that was a NOOP. DAG size: 52 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate)
[2022-11-02 20:55:42,552 WARN L234 SmtUtils]: Spent 8.01s on a formula simplification that was a NOOP. DAG size: 55 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate)
[2022-11-02 20:57:08,609 WARN L234 SmtUtils]: Spent 10.03s on a formula simplification that was a NOOP. DAG size: 70 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate)
[2022-11-02 20:57:53,344 WARN L234 SmtUtils]: Spent 10.04s on a formula simplification that was a NOOP. DAG size: 73 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate)