./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.h_CRC.c --full-output --architecture 64bit
--------------------------------------------------------------------------------
Checking for ERROR reachability
Using default analysis
Version 5e519f3a
Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcca029c-c17a-4f9a-acfb-948995548b46/bin/uautomizer-Dbtcem3rbc/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcca029c-c17a-4f9a-acfb-948995548b46/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_fcca029c-c17a-4f9a-acfb-948995548b46/bin/uautomizer-Dbtcem3rbc/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcca029c-c17a-4f9a-acfb-948995548b46/bin/uautomizer-Dbtcem3rbc/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.h_CRC.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcca029c-c17a-4f9a-acfb-948995548b46/bin/uautomizer-Dbtcem3rbc/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcca029c-c17a-4f9a-acfb-948995548b46/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 64bit --witnessprinter.graph.data.programhash 3f9c397d5aa1cb71d12753e83c412ed40b6f0435c493fbfb32e773ed4e1a0a10
--- 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 20:54:51,494 INFO L177 SettingsManager]: Resetting all preferences to default values...
[2022-11-02 20:54:51,497 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values
[2022-11-02 20:54:51,544 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2022-11-02 20:54:51,545 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2022-11-02 20:54:51,548 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2022-11-02 20:54:51,550 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2022-11-02 20:54:51,555 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values
[2022-11-02 20:54:51,557 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values
[2022-11-02 20:54:51,562 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values
[2022-11-02 20:54:51,564 INFO L181 SettingsManager]: Resetting Sifa preferences to default values
[2022-11-02 20:54:51,566 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2022-11-02 20:54:51,566 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values
[2022-11-02 20:54:51,569 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values
[2022-11-02 20:54:51,570 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2022-11-02 20:54:51,573 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values
[2022-11-02 20:54:51,574 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2022-11-02 20:54:51,575 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2022-11-02 20:54:51,577 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2022-11-02 20:54:51,583 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values
[2022-11-02 20:54:51,585 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2022-11-02 20:54:51,586 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values
[2022-11-02 20:54:51,589 INFO L181 SettingsManager]: Resetting Referee preferences to default values
[2022-11-02 20:54:51,590 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values
[2022-11-02 20:54:51,598 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2022-11-02 20:54:51,599 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2022-11-02 20:54:51,599 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values
[2022-11-02 20:54:51,601 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values
[2022-11-02 20:54:51,602 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values
[2022-11-02 20:54:51,602 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring...
[2022-11-02 20:54:51,603 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values
[2022-11-02 20:54:51,604 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values
[2022-11-02 20:54:51,607 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values
[2022-11-02 20:54:51,608 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values
[2022-11-02 20:54:51,609 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2022-11-02 20:54:51,610 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values
[2022-11-02 20:54:51,610 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring...
[2022-11-02 20:54:51,610 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring...
[2022-11-02 20:54:51,611 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values
[2022-11-02 20:54:51,612 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values
[2022-11-02 20:54:51,612 INFO L188 SettingsManager]: Finished resetting all preferences to default values...
[2022-11-02 20:54:51,613 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcca029c-c17a-4f9a-acfb-948995548b46/bin/uautomizer-Dbtcem3rbc/config/svcomp-Reach-64bit-Automizer_Default.epf
[2022-11-02 20:54:51,652 INFO L113 SettingsManager]: Loading preferences was successful
[2022-11-02 20:54:51,653 INFO L115 SettingsManager]: Preferences different from defaults after loading the file:
[2022-11-02 20:54:51,653 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2022-11-02 20:54:51,654 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2022-11-02 20:54:51,655 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2022-11-02 20:54:51,655 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2022-11-02 20:54:51,656 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2022-11-02 20:54:51,656 INFO L138 SettingsManager]: * Create parallel compositions if possible=false
[2022-11-02 20:54:51,656 INFO L138 SettingsManager]: * Use SBE=true
[2022-11-02 20:54:51,656 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2022-11-02 20:54:51,658 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true
[2022-11-02 20:54:51,658 INFO L138 SettingsManager]: * Check division by zero=IGNORE
[2022-11-02 20:54:51,658 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE
[2022-11-02 20:54:51,658 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE
[2022-11-02 20:54:51,658 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE
[2022-11-02 20:54:51,659 INFO L138 SettingsManager]: * Check if freed pointer was valid=false
[2022-11-02 20:54:51,659 INFO L138 SettingsManager]: * Use constant arrays=true
[2022-11-02 20:54:51,659 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE
[2022-11-02 20:54:51,659 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2022-11-02 20:54:51,660 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements
[2022-11-02 20:54:51,660 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode
[2022-11-02 20:54:51,660 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2022-11-02 20:54:51,660 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2022-11-02 20:54:51,661 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP
[2022-11-02 20:54:51,661 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2022-11-02 20:54:51,661 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL
[2022-11-02 20:54:51,661 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2022-11-02 20:54:51,661 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false
[2022-11-02 20:54:51,662 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET
[2022-11-02 20:54:51,662 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2022-11-02 20:54:51,662 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_fcca029c-c17a-4f9a-acfb-948995548b46/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$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcca029c-c17a-4f9a-acfb-948995548b46/bin/uautomizer-Dbtcem3rbc
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) )
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3f9c397d5aa1cb71d12753e83c412ed40b6f0435c493fbfb32e773ed4e1a0a10
[2022-11-02 20:54:51,959 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp
[2022-11-02 20:54:51,990 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2022-11-02 20:54:51,993 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2022-11-02 20:54:51,994 INFO L271 PluginConnector]: Initializing CDTParser...
[2022-11-02 20:54:51,997 INFO L275 PluginConnector]: CDTParser initialized
[2022-11-02 20:54:51,999 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcca029c-c17a-4f9a-acfb-948995548b46/bin/uautomizer-Dbtcem3rbc/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.h_CRC.c
[2022-11-02 20:54:52,066 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcca029c-c17a-4f9a-acfb-948995548b46/bin/uautomizer-Dbtcem3rbc/data/75077c210/99401701dd844d88a5e115e5a14478c3/FLAGfc62550c3
[2022-11-02 20:54:52,597 INFO L306 CDTParser]: Found 1 translation units.
[2022-11-02 20:54:52,598 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcca029c-c17a-4f9a-acfb-948995548b46/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.h_CRC.c
[2022-11-02 20:54:52,616 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcca029c-c17a-4f9a-acfb-948995548b46/bin/uautomizer-Dbtcem3rbc/data/75077c210/99401701dd844d88a5e115e5a14478c3/FLAGfc62550c3
[2022-11-02 20:54:52,893 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcca029c-c17a-4f9a-acfb-948995548b46/bin/uautomizer-Dbtcem3rbc/data/75077c210/99401701dd844d88a5e115e5a14478c3
[2022-11-02 20:54:52,895 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2022-11-02 20:54:52,899 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements.
[2022-11-02 20:54:52,902 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2022-11-02 20:54:52,903 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator...
[2022-11-02 20:54:52,906 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized
[2022-11-02 20:54:52,907 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 08:54:52" (1/1) ...
[2022-11-02 20:54:52,909 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@147fd22e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:54:52, skipping insertion in model container
[2022-11-02 20:54:52,909 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 08:54:52" (1/1) ...
[2022-11-02 20:54:52,917 INFO L145 MainTranslator]: Starting translation in SV-COMP mode
[2022-11-02 20:54:52,980 INFO L178 MainTranslator]: Built tables and reachable declarations
[2022-11-02 20:54:53,171 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_fcca029c-c17a-4f9a-acfb-948995548b46/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.h_CRC.c[1107,1120]
[2022-11-02 20:54:53,438 INFO L210 PostProcessor]: Analyzing one entry point: main
[2022-11-02 20:54:53,441 INFO L203 MainTranslator]: Completed pre-run
[2022-11-02 20:54:53,452 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_fcca029c-c17a-4f9a-acfb-948995548b46/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.h_CRC.c[1107,1120]
[2022-11-02 20:54:53,582 INFO L210 PostProcessor]: Analyzing one entry point: main
[2022-11-02 20:54:53,594 INFO L208 MainTranslator]: Completed translation
[2022-11-02 20:54:53,595 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:54:53 WrapperNode
[2022-11-02 20:54:53,595 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2022-11-02 20:54:53,596 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2022-11-02 20:54:53,597 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner...
[2022-11-02 20:54:53,597 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized
[2022-11-02 20:54:53,609 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:54:53" (1/1) ...
[2022-11-02 20:54:53,665 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:54:53" (1/1) ...
[2022-11-02 20:54:53,768 INFO L138 Inliner]: procedures = 11, calls = 3, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 669
[2022-11-02 20:54:53,769 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2022-11-02 20:54:53,770 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2022-11-02 20:54:53,770 INFO L271 PluginConnector]: Initializing Boogie Preprocessor...
[2022-11-02 20:54:53,770 INFO L275 PluginConnector]: Boogie Preprocessor initialized
[2022-11-02 20:54:53,780 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:54:53" (1/1) ...
[2022-11-02 20:54:53,780 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:54:53" (1/1) ...
[2022-11-02 20:54:53,797 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:54:53" (1/1) ...
[2022-11-02 20:54:53,802 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:54:53" (1/1) ...
[2022-11-02 20:54:53,842 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:54:53" (1/1) ...
[2022-11-02 20:54:53,858 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:54:53" (1/1) ...
[2022-11-02 20:54:53,863 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:54:53" (1/1) ...
[2022-11-02 20:54:53,883 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:54:53" (1/1) ...
[2022-11-02 20:54:53,909 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2022-11-02 20:54:53,910 INFO L113 PluginConnector]: ------------------------RCFGBuilder----------------------------
[2022-11-02 20:54:53,910 INFO L271 PluginConnector]: Initializing RCFGBuilder...
[2022-11-02 20:54:53,911 INFO L275 PluginConnector]: RCFGBuilder initialized
[2022-11-02 20:54:53,912 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:54:53" (1/1) ...
[2022-11-02 20:54:53,919 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2022-11-02 20:54:53,935 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcca029c-c17a-4f9a-acfb-948995548b46/bin/uautomizer-Dbtcem3rbc/z3
[2022-11-02 20:54:53,950 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcca029c-c17a-4f9a-acfb-948995548b46/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null)
[2022-11-02 20:54:54,014 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcca029c-c17a-4f9a-acfb-948995548b46/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process
[2022-11-02 20:54:54,066 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2022-11-02 20:54:54,066 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2022-11-02 20:54:54,315 INFO L235 CfgBuilder]: Building ICFG
[2022-11-02 20:54:54,317 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation
[2022-11-02 20:55:17,514 INFO L276 CfgBuilder]: Performing block encoding
[2022-11-02 20:55:17,520 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2022-11-02 20:55:17,521 INFO L300 CfgBuilder]: Removed 1 assume(true) statements.
[2022-11-02 20:55:17,522 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 08:55:17 BoogieIcfgContainer
[2022-11-02 20:55:17,522 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2022-11-02 20:55:17,525 INFO L113 PluginConnector]: ------------------------TraceAbstraction----------------------------
[2022-11-02 20:55:17,525 INFO L271 PluginConnector]: Initializing TraceAbstraction...
[2022-11-02 20:55:17,528 INFO L275 PluginConnector]: TraceAbstraction initialized
[2022-11-02 20:55:17,529 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.11 08:54:52" (1/3) ...
[2022-11-02 20:55:17,529 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@68c9b397 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 08:55:17, skipping insertion in model container
[2022-11-02 20:55:17,530 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:54:53" (2/3) ...
[2022-11-02 20:55:17,530 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@68c9b397 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 08:55:17, skipping insertion in model container
[2022-11-02 20:55:17,530 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 08:55:17" (3/3) ...
[2022-11-02 20:55:17,531 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.h_CRC.c
[2022-11-02 20:55:17,549 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2022-11-02 20:55:17,549 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2022-11-02 20:55:17,601 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2022-11-02 20:55:17,616 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;@24ed4165, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2022-11-02 20:55:17,616 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2022-11-02 20:55:17,628 INFO L276 IsEmpty]: Start isEmpty. Operand has 19 states, 17 states have (on average 1.4705882352941178) internal successors, (25), 18 states have internal predecessors, (25), 0 states have call successors, (0), 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 20:55:17,634 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6
[2022-11-02 20:55:17,634 INFO L187 NwaCegarLoop]: Found error trace
[2022-11-02 20:55:17,635 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1]
[2022-11-02 20:55:17,635 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2022-11-02 20:55:17,642 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-11-02 20:55:17,642 INFO L85 PathProgramCache]: Analyzing trace with hash 28698761, now seen corresponding path program 1 times
[2022-11-02 20:55:17,651 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-11-02 20:55:17,651 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1677774070]
[2022-11-02 20:55:17,652 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-11-02 20:55:17,652 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-11-02 20:55:17,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2022-11-02 20:55:17,948 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2022-11-02 20:55:18,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2022-11-02 20:55:18,080 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2022-11-02 20:55:18,087 INFO L359 BasicCegarLoop]: Counterexample is feasible
[2022-11-02 20:55:18,088 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining)
[2022-11-02 20:55:18,090 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2022-11-02 20:55:18,095 INFO L444 BasicCegarLoop]: Path program histogram: [1]
[2022-11-02 20:55:18,098 INFO L178 ceAbstractionStarter]: Computing trace abstraction results
[2022-11-02 20:55:18,132 WARN L320 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null
[2022-11-02 20:55:18,144 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.11 08:55:18 BoogieIcfgContainer
[2022-11-02 20:55:18,144 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2022-11-02 20:55:18,146 INFO L113 PluginConnector]: ------------------------Witness Printer----------------------------
[2022-11-02 20:55:18,146 INFO L271 PluginConnector]: Initializing Witness Printer...
[2022-11-02 20:55:18,147 INFO L275 PluginConnector]: Witness Printer initialized
[2022-11-02 20:55:18,148 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 08:55:17" (3/4) ...
[2022-11-02 20:55:18,151 INFO L140 WitnessPrinter]: No result that supports witness generation found
[2022-11-02 20:55:18,151 INFO L132 PluginConnector]: ------------------------ END Witness Printer----------------------------
[2022-11-02 20:55:18,153 INFO L158 Benchmark]: Toolchain (without parser) took 25253.37ms. Allocated memory was 102.8MB in the beginning and 511.7MB in the end (delta: 408.9MB). Free memory was 78.3MB in the beginning and 285.6MB in the end (delta: -207.3MB). Peak memory consumption was 201.2MB. Max. memory is 16.1GB.
[2022-11-02 20:55:18,153 INFO L158 Benchmark]: CDTParser took 0.27ms. Allocated memory is still 102.8MB. Free memory is still 56.1MB. There was no memory consumed. Max. memory is 16.1GB.
[2022-11-02 20:55:18,155 INFO L158 Benchmark]: CACSL2BoogieTranslator took 693.25ms. Allocated memory was 102.8MB in the beginning and 136.3MB in the end (delta: 33.6MB). Free memory was 78.0MB in the beginning and 91.8MB in the end (delta: -13.8MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB.
[2022-11-02 20:55:18,155 INFO L158 Benchmark]: Boogie Procedure Inliner took 172.47ms. Allocated memory is still 136.3MB. Free memory was 91.8MB in the beginning and 78.7MB in the end (delta: 13.1MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB.
[2022-11-02 20:55:18,156 INFO L158 Benchmark]: Boogie Preprocessor took 139.46ms. Allocated memory is still 136.3MB. Free memory was 78.7MB in the beginning and 71.1MB in the end (delta: 7.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB.
[2022-11-02 20:55:18,157 INFO L158 Benchmark]: RCFGBuilder took 23612.93ms. Allocated memory was 136.3MB in the beginning and 511.7MB in the end (delta: 375.4MB). Free memory was 71.1MB in the beginning and 325.4MB in the end (delta: -254.3MB). Peak memory consumption was 280.6MB. Max. memory is 16.1GB.
[2022-11-02 20:55:18,158 INFO L158 Benchmark]: TraceAbstraction took 619.38ms. Allocated memory is still 511.7MB. Free memory was 324.4MB in the beginning and 285.6MB in the end (delta: 38.8MB). Peak memory consumption was 39.8MB. Max. memory is 16.1GB.
[2022-11-02 20:55:18,158 INFO L158 Benchmark]: Witness Printer took 5.20ms. Allocated memory is still 511.7MB. Free memory is still 285.6MB. There was no memory consumed. Max. memory is 16.1GB.
[2022-11-02 20:55:18,168 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] #######################
--- Results ---
* Results from de.uni_freiburg.informatik.ultimate.core:
- StatisticsResult: Toolchain Benchmarks
Benchmark results are:
* CDTParser took 0.27ms. Allocated memory is still 102.8MB. Free memory is still 56.1MB. There was no memory consumed. Max. memory is 16.1GB.
* CACSL2BoogieTranslator took 693.25ms. Allocated memory was 102.8MB in the beginning and 136.3MB in the end (delta: 33.6MB). Free memory was 78.0MB in the beginning and 91.8MB in the end (delta: -13.8MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB.
* Boogie Procedure Inliner took 172.47ms. Allocated memory is still 136.3MB. Free memory was 91.8MB in the beginning and 78.7MB in the end (delta: 13.1MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB.
* Boogie Preprocessor took 139.46ms. Allocated memory is still 136.3MB. Free memory was 78.7MB in the beginning and 71.1MB in the end (delta: 7.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB.
* RCFGBuilder took 23612.93ms. Allocated memory was 136.3MB in the beginning and 511.7MB in the end (delta: 375.4MB). Free memory was 71.1MB in the beginning and 325.4MB in the end (delta: -254.3MB). Peak memory consumption was 280.6MB. Max. memory is 16.1GB.
* TraceAbstraction took 619.38ms. Allocated memory is still 511.7MB. Free memory was 324.4MB in the beginning and 285.6MB in the end (delta: 38.8MB). Peak memory consumption was 39.8MB. Max. memory is 16.1GB.
* Witness Printer took 5.20ms. Allocated memory is still 511.7MB. Free memory is still 285.6MB. There was no memory consumed. Max. memory is 16.1GB.
* Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction:
- StatisticsResult: ErrorAutomatonStatistics
NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0
- UnprovableResult [Line: 20]: Unable to prove that call to reach_error is unreachable
Unable to prove that call to reach_error is unreachable
Reason: overapproximation of bitwiseComplement at line 155, overapproximation of bitwiseAnd at line 140.
Possible FailurePath:
[L25] const SORT_1 mask_SORT_1 = (SORT_1)-1 >> (sizeof(SORT_1) * 8 - 1);
[L26] const SORT_1 msb_SORT_1 = (SORT_1)1 << (1 - 1);
[L28] const SORT_5 mask_SORT_5 = (SORT_5)-1 >> (sizeof(SORT_5) * 8 - 8);
[L29] const SORT_5 msb_SORT_5 = (SORT_5)1 << (8 - 1);
[L31] const SORT_9 mask_SORT_9 = (SORT_9)-1 >> (sizeof(SORT_9) * 8 - 32);
[L32] const SORT_9 msb_SORT_9 = (SORT_9)1 << (32 - 1);
[L34] const SORT_161 mask_SORT_161 = (SORT_161)-1 >> (sizeof(SORT_161) * 8 - 2);
[L35] const SORT_161 msb_SORT_161 = (SORT_161)1 << (2 - 1);
[L37] const SORT_163 mask_SORT_163 = (SORT_163)-1 >> (sizeof(SORT_163) * 8 - 3);
[L38] const SORT_163 msb_SORT_163 = (SORT_163)1 << (3 - 1);
[L40] const SORT_165 mask_SORT_165 = (SORT_165)-1 >> (sizeof(SORT_165) * 8 - 4);
[L41] const SORT_165 msb_SORT_165 = (SORT_165)1 << (4 - 1);
[L43] const SORT_167 mask_SORT_167 = (SORT_167)-1 >> (sizeof(SORT_167) * 8 - 5);
[L44] const SORT_167 msb_SORT_167 = (SORT_167)1 << (5 - 1);
[L46] const SORT_169 mask_SORT_169 = (SORT_169)-1 >> (sizeof(SORT_169) * 8 - 6);
[L47] const SORT_169 msb_SORT_169 = (SORT_169)1 << (6 - 1);
[L49] const SORT_171 mask_SORT_171 = (SORT_171)-1 >> (sizeof(SORT_171) * 8 - 7);
[L50] const SORT_171 msb_SORT_171 = (SORT_171)1 << (7 - 1);
[L52] const SORT_174 mask_SORT_174 = (SORT_174)-1 >> (sizeof(SORT_174) * 8 - 9);
[L53] const SORT_174 msb_SORT_174 = (SORT_174)1 << (9 - 1);
[L55] const SORT_176 mask_SORT_176 = (SORT_176)-1 >> (sizeof(SORT_176) * 8 - 10);
[L56] const SORT_176 msb_SORT_176 = (SORT_176)1 << (10 - 1);
[L58] const SORT_178 mask_SORT_178 = (SORT_178)-1 >> (sizeof(SORT_178) * 8 - 11);
[L59] const SORT_178 msb_SORT_178 = (SORT_178)1 << (11 - 1);
[L61] const SORT_180 mask_SORT_180 = (SORT_180)-1 >> (sizeof(SORT_180) * 8 - 12);
[L62] const SORT_180 msb_SORT_180 = (SORT_180)1 << (12 - 1);
[L64] const SORT_182 mask_SORT_182 = (SORT_182)-1 >> (sizeof(SORT_182) * 8 - 13);
[L65] const SORT_182 msb_SORT_182 = (SORT_182)1 << (13 - 1);
[L67] const SORT_184 mask_SORT_184 = (SORT_184)-1 >> (sizeof(SORT_184) * 8 - 14);
[L68] const SORT_184 msb_SORT_184 = (SORT_184)1 << (14 - 1);
[L70] const SORT_186 mask_SORT_186 = (SORT_186)-1 >> (sizeof(SORT_186) * 8 - 15);
[L71] const SORT_186 msb_SORT_186 = (SORT_186)1 << (15 - 1);
[L73] const SORT_188 mask_SORT_188 = (SORT_188)-1 >> (sizeof(SORT_188) * 8 - 16);
[L74] const SORT_188 msb_SORT_188 = (SORT_188)1 << (16 - 1);
[L76] const SORT_190 mask_SORT_190 = (SORT_190)-1 >> (sizeof(SORT_190) * 8 - 17);
[L77] const SORT_190 msb_SORT_190 = (SORT_190)1 << (17 - 1);
[L79] const SORT_192 mask_SORT_192 = (SORT_192)-1 >> (sizeof(SORT_192) * 8 - 18);
[L80] const SORT_192 msb_SORT_192 = (SORT_192)1 << (18 - 1);
[L82] const SORT_194 mask_SORT_194 = (SORT_194)-1 >> (sizeof(SORT_194) * 8 - 19);
[L83] const SORT_194 msb_SORT_194 = (SORT_194)1 << (19 - 1);
[L85] const SORT_196 mask_SORT_196 = (SORT_196)-1 >> (sizeof(SORT_196) * 8 - 20);
[L86] const SORT_196 msb_SORT_196 = (SORT_196)1 << (20 - 1);
[L88] const SORT_198 mask_SORT_198 = (SORT_198)-1 >> (sizeof(SORT_198) * 8 - 21);
[L89] const SORT_198 msb_SORT_198 = (SORT_198)1 << (21 - 1);
[L91] const SORT_200 mask_SORT_200 = (SORT_200)-1 >> (sizeof(SORT_200) * 8 - 22);
[L92] const SORT_200 msb_SORT_200 = (SORT_200)1 << (22 - 1);
[L94] const SORT_202 mask_SORT_202 = (SORT_202)-1 >> (sizeof(SORT_202) * 8 - 23);
[L95] const SORT_202 msb_SORT_202 = (SORT_202)1 << (23 - 1);
[L97] const SORT_204 mask_SORT_204 = (SORT_204)-1 >> (sizeof(SORT_204) * 8 - 24);
[L98] const SORT_204 msb_SORT_204 = (SORT_204)1 << (24 - 1);
[L100] const SORT_206 mask_SORT_206 = (SORT_206)-1 >> (sizeof(SORT_206) * 8 - 25);
[L101] const SORT_206 msb_SORT_206 = (SORT_206)1 << (25 - 1);
[L103] const SORT_208 mask_SORT_208 = (SORT_208)-1 >> (sizeof(SORT_208) * 8 - 26);
[L104] const SORT_208 msb_SORT_208 = (SORT_208)1 << (26 - 1);
[L106] const SORT_210 mask_SORT_210 = (SORT_210)-1 >> (sizeof(SORT_210) * 8 - 27);
[L107] const SORT_210 msb_SORT_210 = (SORT_210)1 << (27 - 1);
[L109] const SORT_212 mask_SORT_212 = (SORT_212)-1 >> (sizeof(SORT_212) * 8 - 28);
[L110] const SORT_212 msb_SORT_212 = (SORT_212)1 << (28 - 1);
[L112] const SORT_214 mask_SORT_214 = (SORT_214)-1 >> (sizeof(SORT_214) * 8 - 29);
[L113] const SORT_214 msb_SORT_214 = (SORT_214)1 << (29 - 1);
[L115] const SORT_216 mask_SORT_216 = (SORT_216)-1 >> (sizeof(SORT_216) * 8 - 30);
[L116] const SORT_216 msb_SORT_216 = (SORT_216)1 << (30 - 1);
[L118] const SORT_218 mask_SORT_218 = (SORT_218)-1 >> (sizeof(SORT_218) * 8 - 31);
[L119] const SORT_218 msb_SORT_218 = (SORT_218)1 << (31 - 1);
[L121] const SORT_9 var_10 = 4294967295;
[L122] const SORT_9 var_13 = 2863311530;
[L123] const SORT_1 var_17 = 1;
[L125] SORT_1 input_2;
[L126] SORT_1 input_3;
[L127] SORT_1 input_4;
[L128] SORT_5 input_6;
[L129] SORT_1 input_7;
[L130] SORT_1 input_8;
[L132] SORT_9 state_11 = __VERIFIER_nondet_uint() & mask_SORT_9;
[L134] SORT_9 init_12_arg_1 = var_10;
[L135] state_11 = init_12_arg_1
VAL [init_12_arg_1=4294967295, mask_SORT_1=1, mask_SORT_161=3, mask_SORT_163=7, mask_SORT_165=15, mask_SORT_167=31, mask_SORT_169=63, mask_SORT_171=127, mask_SORT_174=511, mask_SORT_176=1023, mask_SORT_178=2047, mask_SORT_180=4095, mask_SORT_182=8191, mask_SORT_184=16383, mask_SORT_186=32767, mask_SORT_188=65535, mask_SORT_190=4294967295, mask_SORT_192=4294967295, mask_SORT_194=4294967295, mask_SORT_196=4294967295, mask_SORT_198=4294967295, mask_SORT_200=4294967295, mask_SORT_202=4294967295, mask_SORT_204=4294967295, mask_SORT_206=4294967295, mask_SORT_208=4294967295, mask_SORT_210=4294967295, mask_SORT_212=4294967295, mask_SORT_214=4294967295, mask_SORT_216=4294967295, mask_SORT_218=4294967295, mask_SORT_5=255, mask_SORT_9=4294967295, msb_SORT_1=1, msb_SORT_161=2, msb_SORT_163=4, msb_SORT_165=8, msb_SORT_167=16, msb_SORT_169=32, msb_SORT_171=64, msb_SORT_174=256, msb_SORT_176=512, msb_SORT_178=1024, msb_SORT_180=2048, msb_SORT_182=4096, msb_SORT_184=8192, msb_SORT_186=16384, msb_SORT_188=32768, msb_SORT_190=65536, msb_SORT_192=131072, msb_SORT_194=262144, msb_SORT_196=524288, msb_SORT_198=1048576, msb_SORT_200=2097152, msb_SORT_202=4194304, msb_SORT_204=8388608, msb_SORT_206=16777216, msb_SORT_208=33554432, msb_SORT_210=67108864, msb_SORT_212=134217728, msb_SORT_214=268435456, msb_SORT_216=536870912, msb_SORT_218=1073741824, msb_SORT_5=128, msb_SORT_9=2147483648, state_11=4294967295, var_10=4294967295, var_13=2863311530, var_17=1]
[L138] input_2 = __VERIFIER_nondet_uchar()
[L139] input_3 = __VERIFIER_nondet_uchar()
[L140] input_3 = input_3 & mask_SORT_1
[L141] input_4 = __VERIFIER_nondet_uchar()
[L142] input_4 = input_4 & mask_SORT_1
[L143] input_6 = __VERIFIER_nondet_uchar()
[L144] input_6 = input_6 & mask_SORT_5
[L145] input_7 = __VERIFIER_nondet_uchar()
[L146] input_7 = input_7 & mask_SORT_1
[L147] input_8 = __VERIFIER_nondet_uchar()
[L148] input_8 = input_8 & mask_SORT_1
[L151] SORT_9 var_14_arg_0 = state_11;
[L152] SORT_9 var_14_arg_1 = var_13;
[L153] SORT_1 var_14 = var_14_arg_0 != var_14_arg_1;
[L154] SORT_1 var_18_arg_0 = var_14;
[L155] SORT_1 var_18 = ~var_18_arg_0;
[L156] SORT_1 var_19_arg_0 = var_17;
[L157] SORT_1 var_19_arg_1 = var_18;
[L158] SORT_1 var_19 = var_19_arg_0 & var_19_arg_1;
[L159] var_19 = var_19 & mask_SORT_1
[L160] SORT_1 bad_20_arg_0 = var_19;
[L161] CALL __VERIFIER_assert(!(bad_20_arg_0))
[L20] COND TRUE !(cond)
VAL [\old(cond)=0, cond=0]
[L20] reach_error()
VAL [\old(cond)=0, cond=0]
- StatisticsResult: Ultimate Automizer benchmark data
CFG has 1 procedures, 19 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.5s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=19occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 5 NumberOfCodeBlocks, 5 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available
RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces
[2022-11-02 20:55:18,198 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcca029c-c17a-4f9a-acfb-948995548b46/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0
Received shutdown request...
--- End real Ultimate output ---
Execution finished normally
Using bit-precise analysis
Retrying with bit-precise analysis
### Bit-precise run ###
Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcca029c-c17a-4f9a-acfb-948995548b46/bin/uautomizer-Dbtcem3rbc/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcca029c-c17a-4f9a-acfb-948995548b46/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_fcca029c-c17a-4f9a-acfb-948995548b46/bin/uautomizer-Dbtcem3rbc/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcca029c-c17a-4f9a-acfb-948995548b46/bin/uautomizer-Dbtcem3rbc/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.h_CRC.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcca029c-c17a-4f9a-acfb-948995548b46/bin/uautomizer-Dbtcem3rbc/config/svcomp-Reach-64bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcca029c-c17a-4f9a-acfb-948995548b46/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 64bit --witnessprinter.graph.data.programhash 3f9c397d5aa1cb71d12753e83c412ed40b6f0435c493fbfb32e773ed4e1a0a10
--- 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 20:55:20,485 INFO L177 SettingsManager]: Resetting all preferences to default values...
[2022-11-02 20:55:20,488 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values
[2022-11-02 20:55:20,535 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2022-11-02 20:55:20,535 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2022-11-02 20:55:20,539 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2022-11-02 20:55:20,541 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2022-11-02 20:55:20,547 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values
[2022-11-02 20:55:20,552 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values
[2022-11-02 20:55:20,555 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values
[2022-11-02 20:55:20,557 INFO L181 SettingsManager]: Resetting Sifa preferences to default values
[2022-11-02 20:55:20,558 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2022-11-02 20:55:20,559 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values
[2022-11-02 20:55:20,561 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values
[2022-11-02 20:55:20,563 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2022-11-02 20:55:20,564 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values
[2022-11-02 20:55:20,566 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2022-11-02 20:55:20,566 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2022-11-02 20:55:20,568 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2022-11-02 20:55:20,574 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values
[2022-11-02 20:55:20,577 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2022-11-02 20:55:20,579 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values
[2022-11-02 20:55:20,582 INFO L181 SettingsManager]: Resetting Referee preferences to default values
[2022-11-02 20:55:20,583 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values
[2022-11-02 20:55:20,589 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2022-11-02 20:55:20,592 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2022-11-02 20:55:20,592 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values
[2022-11-02 20:55:20,593 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values
[2022-11-02 20:55:20,594 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values
[2022-11-02 20:55:20,595 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring...
[2022-11-02 20:55:20,595 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values
[2022-11-02 20:55:20,596 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values
[2022-11-02 20:55:20,598 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values
[2022-11-02 20:55:20,599 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values
[2022-11-02 20:55:20,599 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2022-11-02 20:55:20,600 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values
[2022-11-02 20:55:20,600 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring...
[2022-11-02 20:55:20,601 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring...
[2022-11-02 20:55:20,601 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values
[2022-11-02 20:55:20,602 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values
[2022-11-02 20:55:20,603 INFO L188 SettingsManager]: Finished resetting all preferences to default values...
[2022-11-02 20:55:20,604 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcca029c-c17a-4f9a-acfb-948995548b46/bin/uautomizer-Dbtcem3rbc/config/svcomp-Reach-64bit-Automizer_Bitvector.epf
[2022-11-02 20:55:20,638 INFO L113 SettingsManager]: Loading preferences was successful
[2022-11-02 20:55:20,638 INFO L115 SettingsManager]: Preferences different from defaults after loading the file:
[2022-11-02 20:55:20,638 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2022-11-02 20:55:20,639 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2022-11-02 20:55:20,639 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2022-11-02 20:55:20,639 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2022-11-02 20:55:20,640 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2022-11-02 20:55:20,640 INFO L138 SettingsManager]: * Create parallel compositions if possible=false
[2022-11-02 20:55:20,641 INFO L138 SettingsManager]: * Use SBE=true
[2022-11-02 20:55:20,641 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2022-11-02 20:55:20,641 INFO L138 SettingsManager]: * Check division by zero=IGNORE
[2022-11-02 20:55:20,641 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE
[2022-11-02 20:55:20,641 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE
[2022-11-02 20:55:20,642 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE
[2022-11-02 20:55:20,642 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true
[2022-11-02 20:55:20,642 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true
[2022-11-02 20:55:20,642 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution
[2022-11-02 20:55:20,642 INFO L138 SettingsManager]: * Check if freed pointer was valid=false
[2022-11-02 20:55:20,643 INFO L138 SettingsManager]: * Use constant arrays=true
[2022-11-02 20:55:20,643 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE
[2022-11-02 20:55:20,643 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2022-11-02 20:55:20,643 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements
[2022-11-02 20:55:20,644 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode
[2022-11-02 20:55:20,644 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2022-11-02 20:55:20,644 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2022-11-02 20:55:20,644 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP
[2022-11-02 20:55:20,645 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2022-11-02 20:55:20,645 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF
[2022-11-02 20:55:20,645 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt
[2022-11-02 20:55:20,645 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false
[2022-11-02 20:55:20,645 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET
[2022-11-02 20:55:20,646 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2022-11-02 20:55:20,646 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode
[2022-11-02 20:55:20,646 INFO L138 SettingsManager]: * Logic for external solver=AUFBV
WARNING: An illegal reflective access operation has occurred
WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcca029c-c17a-4f9a-acfb-948995548b46/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$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcca029c-c17a-4f9a-acfb-948995548b46/bin/uautomizer-Dbtcem3rbc
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) )
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3f9c397d5aa1cb71d12753e83c412ed40b6f0435c493fbfb32e773ed4e1a0a10
[2022-11-02 20:55:20,947 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp
[2022-11-02 20:55:20,979 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2022-11-02 20:55:20,982 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2022-11-02 20:55:20,983 INFO L271 PluginConnector]: Initializing CDTParser...
[2022-11-02 20:55:20,984 INFO L275 PluginConnector]: CDTParser initialized
[2022-11-02 20:55:20,985 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcca029c-c17a-4f9a-acfb-948995548b46/bin/uautomizer-Dbtcem3rbc/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.h_CRC.c
[2022-11-02 20:55:21,065 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcca029c-c17a-4f9a-acfb-948995548b46/bin/uautomizer-Dbtcem3rbc/data/13757e3bb/5a22644d778a416388167c5f319d1b11/FLAGa54c3520e
[2022-11-02 20:55:21,646 INFO L306 CDTParser]: Found 1 translation units.
[2022-11-02 20:55:21,646 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcca029c-c17a-4f9a-acfb-948995548b46/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.h_CRC.c
[2022-11-02 20:55:21,665 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcca029c-c17a-4f9a-acfb-948995548b46/bin/uautomizer-Dbtcem3rbc/data/13757e3bb/5a22644d778a416388167c5f319d1b11/FLAGa54c3520e
[2022-11-02 20:55:21,970 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcca029c-c17a-4f9a-acfb-948995548b46/bin/uautomizer-Dbtcem3rbc/data/13757e3bb/5a22644d778a416388167c5f319d1b11
[2022-11-02 20:55:21,974 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2022-11-02 20:55:21,976 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements.
[2022-11-02 20:55:21,979 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2022-11-02 20:55:21,979 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator...
[2022-11-02 20:55:21,983 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized
[2022-11-02 20:55:21,984 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 08:55:21" (1/1) ...
[2022-11-02 20:55:21,986 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7eb7a94b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:55:21, skipping insertion in model container
[2022-11-02 20:55:21,986 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 08:55:21" (1/1) ...
[2022-11-02 20:55:21,993 INFO L145 MainTranslator]: Starting translation in SV-COMP mode
[2022-11-02 20:55:22,050 INFO L178 MainTranslator]: Built tables and reachable declarations
[2022-11-02 20:55:22,233 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_fcca029c-c17a-4f9a-acfb-948995548b46/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.h_CRC.c[1107,1120]
[2022-11-02 20:55:22,493 INFO L210 PostProcessor]: Analyzing one entry point: main
[2022-11-02 20:55:22,507 INFO L203 MainTranslator]: Completed pre-run
[2022-11-02 20:55:22,517 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_fcca029c-c17a-4f9a-acfb-948995548b46/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.h_CRC.c[1107,1120]
[2022-11-02 20:55:22,603 INFO L210 PostProcessor]: Analyzing one entry point: main
[2022-11-02 20:55:22,615 INFO L208 MainTranslator]: Completed translation
[2022-11-02 20:55:22,615 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:55:22 WrapperNode
[2022-11-02 20:55:22,615 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2022-11-02 20:55:22,616 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2022-11-02 20:55:22,617 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner...
[2022-11-02 20:55:22,617 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized
[2022-11-02 20:55:22,627 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:55:22" (1/1) ...
[2022-11-02 20:55:22,646 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:55:22" (1/1) ...
[2022-11-02 20:55:22,696 INFO L138 Inliner]: procedures = 11, calls = 3, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 669
[2022-11-02 20:55:22,696 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2022-11-02 20:55:22,697 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2022-11-02 20:55:22,697 INFO L271 PluginConnector]: Initializing Boogie Preprocessor...
[2022-11-02 20:55:22,697 INFO L275 PluginConnector]: Boogie Preprocessor initialized
[2022-11-02 20:55:22,710 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:55:22" (1/1) ...
[2022-11-02 20:55:22,711 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:55:22" (1/1) ...
[2022-11-02 20:55:22,720 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:55:22" (1/1) ...
[2022-11-02 20:55:22,720 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:55:22" (1/1) ...
[2022-11-02 20:55:22,736 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:55:22" (1/1) ...
[2022-11-02 20:55:22,740 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:55:22" (1/1) ...
[2022-11-02 20:55:22,757 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:55:22" (1/1) ...
[2022-11-02 20:55:22,759 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:55:22" (1/1) ...
[2022-11-02 20:55:22,765 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2022-11-02 20:55:22,766 INFO L113 PluginConnector]: ------------------------RCFGBuilder----------------------------
[2022-11-02 20:55:22,766 INFO L271 PluginConnector]: Initializing RCFGBuilder...
[2022-11-02 20:55:22,767 INFO L275 PluginConnector]: RCFGBuilder initialized
[2022-11-02 20:55:22,767 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:55:22" (1/1) ...
[2022-11-02 20:55:22,773 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2022-11-02 20:55:22,784 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcca029c-c17a-4f9a-acfb-948995548b46/bin/uautomizer-Dbtcem3rbc/z3
[2022-11-02 20:55:22,802 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcca029c-c17a-4f9a-acfb-948995548b46/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null)
[2022-11-02 20:55:22,827 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcca029c-c17a-4f9a-acfb-948995548b46/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process
[2022-11-02 20:55:22,852 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2022-11-02 20:55:22,852 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2022-11-02 20:55:23,071 INFO L235 CfgBuilder]: Building ICFG
[2022-11-02 20:55:23,073 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation
[2022-11-02 20:55:23,962 INFO L276 CfgBuilder]: Performing block encoding
[2022-11-02 20:55:23,969 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2022-11-02 20:55:23,969 INFO L300 CfgBuilder]: Removed 1 assume(true) statements.
[2022-11-02 20:55:23,971 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 08:55:23 BoogieIcfgContainer
[2022-11-02 20:55:23,972 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2022-11-02 20:55:23,974 INFO L113 PluginConnector]: ------------------------TraceAbstraction----------------------------
[2022-11-02 20:55:23,975 INFO L271 PluginConnector]: Initializing TraceAbstraction...
[2022-11-02 20:55:23,978 INFO L275 PluginConnector]: TraceAbstraction initialized
[2022-11-02 20:55:23,978 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.11 08:55:21" (1/3) ...
[2022-11-02 20:55:23,979 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4ae1cfb7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 08:55:23, skipping insertion in model container
[2022-11-02 20:55:23,979 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:55:22" (2/3) ...
[2022-11-02 20:55:23,979 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4ae1cfb7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 08:55:23, skipping insertion in model container
[2022-11-02 20:55:23,980 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 08:55:23" (3/3) ...
[2022-11-02 20:55:23,981 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.h_CRC.c
[2022-11-02 20:55:24,000 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2022-11-02 20:55:24,000 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2022-11-02 20:55:24,058 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2022-11-02 20:55:24,067 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;@663a5433, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2022-11-02 20:55:24,067 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2022-11-02 20:55:24,082 INFO L276 IsEmpty]: Start isEmpty. Operand has 19 states, 17 states have (on average 1.4705882352941178) internal successors, (25), 18 states have internal predecessors, (25), 0 states have call successors, (0), 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 20:55:24,087 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6
[2022-11-02 20:55:24,088 INFO L187 NwaCegarLoop]: Found error trace
[2022-11-02 20:55:24,088 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1]
[2022-11-02 20:55:24,089 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2022-11-02 20:55:24,096 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-11-02 20:55:24,097 INFO L85 PathProgramCache]: Analyzing trace with hash 28698761, now seen corresponding path program 1 times
[2022-11-02 20:55:24,112 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF
[2022-11-02 20:55:24,112 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1894248001]
[2022-11-02 20:55:24,112 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-11-02 20:55:24,113 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3
[2022-11-02 20:55:24,113 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcca029c-c17a-4f9a-acfb-948995548b46/bin/uautomizer-Dbtcem3rbc/mathsat
[2022-11-02 20:55:24,117 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcca029c-c17a-4f9a-acfb-948995548b46/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2022-11-02 20:55:24,124 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcca029c-c17a-4f9a-acfb-948995548b46/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process
[2022-11-02 20:55:24,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-11-02 20:55:24,336 INFO L263 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 16 conjunts are in the unsatisfiable core
[2022-11-02 20:55:24,345 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2022-11-02 20:55:24,520 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 20:55:24,520 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2022-11-02 20:55:24,521 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2022-11-02 20:55:24,521 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1894248001]
[2022-11-02 20:55:24,522 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1894248001] provided 1 perfect and 0 imperfect interpolant sequences
[2022-11-02 20:55:24,522 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-11-02 20:55:24,522 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2022-11-02 20:55:24,524 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1681470476]
[2022-11-02 20:55:24,525 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-11-02 20:55:24,530 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2022-11-02 20:55:24,530 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2022-11-02 20:55:24,563 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2022-11-02 20:55:24,564 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2022-11-02 20:55:24,566 INFO L87 Difference]: Start difference. First operand has 19 states, 17 states have (on average 1.4705882352941178) internal successors, (25), 18 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 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 20:55:24,751 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-11-02 20:55:24,751 INFO L93 Difference]: Finished difference Result 44 states and 66 transitions.
[2022-11-02 20:55:24,752 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states.
[2022-11-02 20:55:24,753 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5
[2022-11-02 20:55:24,753 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-11-02 20:55:24,760 INFO L225 Difference]: With dead ends: 44
[2022-11-02 20:55:24,760 INFO L226 Difference]: Without dead ends: 27
[2022-11-02 20:55:24,764 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2022-11-02 20:55:24,769 INFO L413 NwaCegarLoop]: 16 mSDtfsCounter, 28 mSDsluCounter, 30 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 46 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-11-02 20:55:24,771 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [28 Valid, 46 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-11-02 20:55:24,786 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states.
[2022-11-02 20:55:24,800 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 17.
[2022-11-02 20:55:24,802 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17 states, 16 states have (on average 1.3125) internal successors, (21), 16 states have internal predecessors, (21), 0 states have call successors, (0), 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 20:55:24,803 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 21 transitions.
[2022-11-02 20:55:24,805 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 21 transitions. Word has length 5
[2022-11-02 20:55:24,805 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-11-02 20:55:24,805 INFO L495 AbstractCegarLoop]: Abstraction has 17 states and 21 transitions.
[2022-11-02 20:55:24,805 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 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 20:55:24,806 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 21 transitions.
[2022-11-02 20:55:24,806 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17
[2022-11-02 20:55:24,807 INFO L187 NwaCegarLoop]: Found error trace
[2022-11-02 20:55:24,807 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-11-02 20:55:24,822 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcca029c-c17a-4f9a-acfb-948995548b46/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0
[2022-11-02 20:55:25,018 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcca029c-c17a-4f9a-acfb-948995548b46/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3
[2022-11-02 20:55:25,019 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2022-11-02 20:55:25,019 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-11-02 20:55:25,020 INFO L85 PathProgramCache]: Analyzing trace with hash -1667101803, now seen corresponding path program 1 times
[2022-11-02 20:55:25,021 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF
[2022-11-02 20:55:25,021 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [244906248]
[2022-11-02 20:55:25,022 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-11-02 20:55:25,022 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3
[2022-11-02 20:55:25,022 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcca029c-c17a-4f9a-acfb-948995548b46/bin/uautomizer-Dbtcem3rbc/mathsat
[2022-11-02 20:55:25,023 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcca029c-c17a-4f9a-acfb-948995548b46/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2022-11-02 20:55:25,024 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcca029c-c17a-4f9a-acfb-948995548b46/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process
[2022-11-02 20:55:25,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-11-02 20:55:25,458 INFO L263 TraceCheckSpWp]: Trace formula consists of 620 conjuncts, 23 conjunts are in the unsatisfiable core
[2022-11-02 20:55:25,464 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2022-11-02 20:55:25,860 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-11-02 20:55:25,861 INFO L328 TraceCheckSpWp]: Computing backward predicates...
[2022-11-02 20:55:26,609 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-11-02 20:55:26,609 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2022-11-02 20:55:26,609 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [244906248]
[2022-11-02 20:55:26,610 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [244906248] provided 0 perfect and 2 imperfect interpolant sequences
[2022-11-02 20:55:26,610 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences.
[2022-11-02 20:55:26,610 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 16
[2022-11-02 20:55:26,610 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [416458584]
[2022-11-02 20:55:26,611 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton
[2022-11-02 20:55:26,612 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states
[2022-11-02 20:55:26,612 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2022-11-02 20:55:26,613 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants.
[2022-11-02 20:55:26,613 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=204, Unknown=0, NotChecked=0, Total=240
[2022-11-02 20:55:26,614 INFO L87 Difference]: Start difference. First operand 17 states and 21 transitions. Second operand has 16 states, 16 states have (on average 1.875) internal successors, (30), 16 states have internal predecessors, (30), 0 states have call successors, (0), 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 20:55:27,444 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-11-02 20:55:27,444 INFO L93 Difference]: Finished difference Result 64 states and 82 transitions.
[2022-11-02 20:55:27,445 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states.
[2022-11-02 20:55:27,445 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 1.875) internal successors, (30), 16 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16
[2022-11-02 20:55:27,445 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-11-02 20:55:27,446 INFO L225 Difference]: With dead ends: 64
[2022-11-02 20:55:27,446 INFO L226 Difference]: Without dead ends: 62
[2022-11-02 20:55:27,447 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 131 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=201, Invalid=729, Unknown=0, NotChecked=0, Total=930
[2022-11-02 20:55:27,448 INFO L413 NwaCegarLoop]: 19 mSDtfsCounter, 152 mSDsluCounter, 169 mSDsCounter, 0 mSdLazyCounter, 57 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 152 SdHoareTripleChecker+Valid, 188 SdHoareTripleChecker+Invalid, 164 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 57 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 84 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time
[2022-11-02 20:55:27,448 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [152 Valid, 188 Invalid, 164 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 57 Invalid, 0 Unknown, 84 Unchecked, 0.3s Time]
[2022-11-02 20:55:27,449 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62 states.
[2022-11-02 20:55:27,455 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62 to 28.
[2022-11-02 20:55:27,455 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28 states, 27 states have (on average 1.3333333333333333) internal successors, (36), 27 states have internal predecessors, (36), 0 states have call successors, (0), 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 20:55:27,456 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 36 transitions.
[2022-11-02 20:55:27,456 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 36 transitions. Word has length 16
[2022-11-02 20:55:27,456 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-11-02 20:55:27,456 INFO L495 AbstractCegarLoop]: Abstraction has 28 states and 36 transitions.
[2022-11-02 20:55:27,456 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 1.875) internal successors, (30), 16 states have internal predecessors, (30), 0 states have call successors, (0), 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 20:55:27,457 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 36 transitions.
[2022-11-02 20:55:27,458 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17
[2022-11-02 20:55:27,458 INFO L187 NwaCegarLoop]: Found error trace
[2022-11-02 20:55:27,458 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-11-02 20:55:27,480 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcca029c-c17a-4f9a-acfb-948995548b46/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0
[2022-11-02 20:55:27,673 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcca029c-c17a-4f9a-acfb-948995548b46/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3
[2022-11-02 20:55:27,673 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2022-11-02 20:55:27,674 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-11-02 20:55:27,674 INFO L85 PathProgramCache]: Analyzing trace with hash -1665254761, now seen corresponding path program 1 times
[2022-11-02 20:55:27,675 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF
[2022-11-02 20:55:27,675 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [481404137]
[2022-11-02 20:55:27,676 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-11-02 20:55:27,676 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3
[2022-11-02 20:55:27,676 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcca029c-c17a-4f9a-acfb-948995548b46/bin/uautomizer-Dbtcem3rbc/mathsat
[2022-11-02 20:55:27,677 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcca029c-c17a-4f9a-acfb-948995548b46/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2022-11-02 20:55:27,681 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcca029c-c17a-4f9a-acfb-948995548b46/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process
[2022-11-02 20:55:28,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-11-02 20:55:28,070 INFO L263 TraceCheckSpWp]: Trace formula consists of 620 conjuncts, 22 conjunts are in the unsatisfiable core
[2022-11-02 20:55:28,076 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2022-11-02 20:55:28,313 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-11-02 20:55:28,313 INFO L328 TraceCheckSpWp]: Computing backward predicates...
[2022-11-02 20:55:28,826 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-11-02 20:55:28,826 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2022-11-02 20:55:28,827 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [481404137]
[2022-11-02 20:55:28,827 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [481404137] provided 0 perfect and 2 imperfect interpolant sequences
[2022-11-02 20:55:28,830 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences.
[2022-11-02 20:55:28,831 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 12
[2022-11-02 20:55:28,831 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [872722839]
[2022-11-02 20:55:28,831 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton
[2022-11-02 20:55:28,832 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states
[2022-11-02 20:55:28,832 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2022-11-02 20:55:28,833 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants.
[2022-11-02 20:55:28,833 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132
[2022-11-02 20:55:28,833 INFO L87 Difference]: Start difference. First operand 28 states and 36 transitions. Second operand has 12 states, 12 states have (on average 2.5) internal successors, (30), 12 states have internal predecessors, (30), 0 states have call successors, (0), 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 20:55:29,159 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-11-02 20:55:29,159 INFO L93 Difference]: Finished difference Result 54 states and 69 transitions.
[2022-11-02 20:55:29,160 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states.
[2022-11-02 20:55:29,160 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 2.5) internal successors, (30), 12 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16
[2022-11-02 20:55:29,160 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-11-02 20:55:29,161 INFO L225 Difference]: With dead ends: 54
[2022-11-02 20:55:29,161 INFO L226 Difference]: Without dead ends: 52
[2022-11-02 20:55:29,161 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=77, Invalid=195, Unknown=0, NotChecked=0, Total=272
[2022-11-02 20:55:29,162 INFO L413 NwaCegarLoop]: 31 mSDtfsCounter, 85 mSDsluCounter, 111 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 85 SdHoareTripleChecker+Valid, 142 SdHoareTripleChecker+Invalid, 71 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 34 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time
[2022-11-02 20:55:29,163 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [85 Valid, 142 Invalid, 71 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 30 Invalid, 0 Unknown, 34 Unchecked, 0.2s Time]
[2022-11-02 20:55:29,164 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states.
[2022-11-02 20:55:29,171 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 39.
[2022-11-02 20:55:29,171 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39 states, 38 states have (on average 1.3421052631578947) internal successors, (51), 38 states have internal predecessors, (51), 0 states have call successors, (0), 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 20:55:29,172 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 51 transitions.
[2022-11-02 20:55:29,172 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 51 transitions. Word has length 16
[2022-11-02 20:55:29,172 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-11-02 20:55:29,173 INFO L495 AbstractCegarLoop]: Abstraction has 39 states and 51 transitions.
[2022-11-02 20:55:29,173 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 2.5) internal successors, (30), 12 states have internal predecessors, (30), 0 states have call successors, (0), 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 20:55:29,173 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 51 transitions.
[2022-11-02 20:55:29,174 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17
[2022-11-02 20:55:29,174 INFO L187 NwaCegarLoop]: Found error trace
[2022-11-02 20:55:29,174 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-11-02 20:55:29,194 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcca029c-c17a-4f9a-acfb-948995548b46/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0
[2022-11-02 20:55:29,389 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcca029c-c17a-4f9a-acfb-948995548b46/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3
[2022-11-02 20:55:29,390 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2022-11-02 20:55:29,390 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-11-02 20:55:29,390 INFO L85 PathProgramCache]: Analyzing trace with hash 107905559, now seen corresponding path program 1 times
[2022-11-02 20:55:29,391 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF
[2022-11-02 20:55:29,391 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1405497413]
[2022-11-02 20:55:29,392 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-11-02 20:55:29,392 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3
[2022-11-02 20:55:29,392 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcca029c-c17a-4f9a-acfb-948995548b46/bin/uautomizer-Dbtcem3rbc/mathsat
[2022-11-02 20:55:29,393 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcca029c-c17a-4f9a-acfb-948995548b46/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2022-11-02 20:55:29,412 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcca029c-c17a-4f9a-acfb-948995548b46/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process
[2022-11-02 20:55:29,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-11-02 20:55:29,774 INFO L263 TraceCheckSpWp]: Trace formula consists of 620 conjuncts, 107 conjunts are in the unsatisfiable core
[2022-11-02 20:55:29,782 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2022-11-02 20:56:57,997 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-11-02 20:56:57,997 INFO L328 TraceCheckSpWp]: Computing backward predicates...
[2022-11-02 20:57:02,808 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-11-02 20:57:02,809 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2022-11-02 20:57:02,810 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1405497413]
[2022-11-02 20:57:02,813 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1405497413] provided 0 perfect and 2 imperfect interpolant sequences
[2022-11-02 20:57:02,813 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences.
[2022-11-02 20:57:02,814 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 24
[2022-11-02 20:57:02,817 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [688156234]
[2022-11-02 20:57:02,818 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton
[2022-11-02 20:57:02,818 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 24 states
[2022-11-02 20:57:02,818 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2022-11-02 20:57:02,820 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants.
[2022-11-02 20:57:02,820 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=465, Unknown=29, NotChecked=0, Total=552
[2022-11-02 20:57:02,820 INFO L87 Difference]: Start difference. First operand 39 states and 51 transitions. Second operand has 24 states, 24 states have (on average 1.25) internal successors, (30), 24 states have internal predecessors, (30), 0 states have call successors, (0), 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 20:57:03,822 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-11-02 20:57:03,823 INFO L93 Difference]: Finished difference Result 84 states and 111 transitions.
[2022-11-02 20:57:03,824 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states.
[2022-11-02 20:57:03,824 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 24 states have (on average 1.25) internal successors, (30), 24 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16
[2022-11-02 20:57:03,824 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-11-02 20:57:03,826 INFO L225 Difference]: With dead ends: 84
[2022-11-02 20:57:03,826 INFO L226 Difference]: Without dead ends: 82
[2022-11-02 20:57:03,827 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 68 ImplicationChecksByTransitivity, 92.5s TimeCoverageRelationStatistics Valid=85, Invalid=588, Unknown=29, NotChecked=0, Total=702
[2022-11-02 20:57:03,828 INFO L413 NwaCegarLoop]: 25 mSDtfsCounter, 87 mSDsluCounter, 330 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 87 SdHoareTripleChecker+Valid, 355 SdHoareTripleChecker+Invalid, 153 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 142 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-11-02 20:57:03,828 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [87 Valid, 355 Invalid, 153 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 10 Invalid, 0 Unknown, 142 Unchecked, 0.1s Time]
[2022-11-02 20:57:03,829 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82 states.
[2022-11-02 20:57:03,839 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82 to 43.
[2022-11-02 20:57:03,839 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43 states, 42 states have (on average 1.3571428571428572) internal successors, (57), 42 states have internal predecessors, (57), 0 states have call successors, (0), 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 20:57:03,840 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 57 transitions.
[2022-11-02 20:57:03,840 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 57 transitions. Word has length 16
[2022-11-02 20:57:03,841 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-11-02 20:57:03,841 INFO L495 AbstractCegarLoop]: Abstraction has 43 states and 57 transitions.
[2022-11-02 20:57:03,841 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 1.25) internal successors, (30), 24 states have internal predecessors, (30), 0 states have call successors, (0), 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 20:57:03,841 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 57 transitions.
[2022-11-02 20:57:03,842 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17
[2022-11-02 20:57:03,842 INFO L187 NwaCegarLoop]: Found error trace
[2022-11-02 20:57:03,842 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-11-02 20:57:03,861 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcca029c-c17a-4f9a-acfb-948995548b46/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (5)] Ended with exit code 0
[2022-11-02 20:57:04,059 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcca029c-c17a-4f9a-acfb-948995548b46/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3
[2022-11-02 20:57:04,060 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2022-11-02 20:57:04,060 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-11-02 20:57:04,061 INFO L85 PathProgramCache]: Analyzing trace with hash -572152811, now seen corresponding path program 1 times
[2022-11-02 20:57:04,061 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF
[2022-11-02 20:57:04,062 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [611563779]
[2022-11-02 20:57:04,062 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-11-02 20:57:04,062 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3
[2022-11-02 20:57:04,062 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcca029c-c17a-4f9a-acfb-948995548b46/bin/uautomizer-Dbtcem3rbc/mathsat
[2022-11-02 20:57:04,063 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcca029c-c17a-4f9a-acfb-948995548b46/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2022-11-02 20:57:04,067 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcca029c-c17a-4f9a-acfb-948995548b46/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process
[2022-11-02 20:57:04,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-11-02 20:57:04,472 INFO L263 TraceCheckSpWp]: Trace formula consists of 620 conjuncts, 32 conjunts are in the unsatisfiable core
[2022-11-02 20:57:04,479 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2022-11-02 20:57:05,020 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-11-02 20:57:05,021 INFO L328 TraceCheckSpWp]: Computing backward predicates...
[2022-11-02 20:57:06,215 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-11-02 20:57:06,216 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2022-11-02 20:57:06,216 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [611563779]
[2022-11-02 20:57:06,216 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [611563779] provided 0 perfect and 2 imperfect interpolant sequences
[2022-11-02 20:57:06,217 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences.
[2022-11-02 20:57:06,217 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12] total 22
[2022-11-02 20:57:06,217 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1301394843]
[2022-11-02 20:57:06,217 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton
[2022-11-02 20:57:06,218 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states
[2022-11-02 20:57:06,218 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2022-11-02 20:57:06,218 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants.
[2022-11-02 20:57:06,219 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=409, Unknown=0, NotChecked=0, Total=462
[2022-11-02 20:57:06,219 INFO L87 Difference]: Start difference. First operand 43 states and 57 transitions. Second operand has 22 states, 22 states have (on average 1.3636363636363635) internal successors, (30), 22 states have internal predecessors, (30), 0 states have call successors, (0), 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 20:57:06,438 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-11-02 20:57:06,438 INFO L93 Difference]: Finished difference Result 64 states and 83 transitions.
[2022-11-02 20:57:06,439 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states.
[2022-11-02 20:57:06,439 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 1.3636363636363635) internal successors, (30), 22 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16
[2022-11-02 20:57:06,440 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-11-02 20:57:06,440 INFO L225 Difference]: With dead ends: 64
[2022-11-02 20:57:06,441 INFO L226 Difference]: Without dead ends: 62
[2022-11-02 20:57:06,441 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 57 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=80, Invalid=520, Unknown=0, NotChecked=0, Total=600
[2022-11-02 20:57:06,442 INFO L413 NwaCegarLoop]: 18 mSDtfsCounter, 54 mSDsluCounter, 167 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 54 SdHoareTripleChecker+Valid, 185 SdHoareTripleChecker+Invalid, 134 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 127 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-11-02 20:57:06,443 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [54 Valid, 185 Invalid, 134 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 6 Invalid, 0 Unknown, 127 Unchecked, 0.1s Time]
[2022-11-02 20:57:06,444 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62 states.
[2022-11-02 20:57:06,451 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62 to 43.
[2022-11-02 20:57:06,452 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43 states, 42 states have (on average 1.3571428571428572) internal successors, (57), 42 states have internal predecessors, (57), 0 states have call successors, (0), 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 20:57:06,453 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 57 transitions.
[2022-11-02 20:57:06,453 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 57 transitions. Word has length 16
[2022-11-02 20:57:06,454 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-11-02 20:57:06,454 INFO L495 AbstractCegarLoop]: Abstraction has 43 states and 57 transitions.
[2022-11-02 20:57:06,454 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 1.3636363636363635) internal successors, (30), 22 states have internal predecessors, (30), 0 states have call successors, (0), 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 20:57:06,454 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 57 transitions.
[2022-11-02 20:57:06,455 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17
[2022-11-02 20:57:06,455 INFO L187 NwaCegarLoop]: Found error trace
[2022-11-02 20:57:06,456 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-11-02 20:57:06,477 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcca029c-c17a-4f9a-acfb-948995548b46/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0
[2022-11-02 20:57:06,674 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcca029c-c17a-4f9a-acfb-948995548b46/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3
[2022-11-02 20:57:06,674 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2022-11-02 20:57:06,675 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-11-02 20:57:06,675 INFO L85 PathProgramCache]: Analyzing trace with hash 808970137, now seen corresponding path program 1 times
[2022-11-02 20:57:06,675 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF
[2022-11-02 20:57:06,675 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [516459771]
[2022-11-02 20:57:06,676 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-11-02 20:57:06,676 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3
[2022-11-02 20:57:06,676 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcca029c-c17a-4f9a-acfb-948995548b46/bin/uautomizer-Dbtcem3rbc/mathsat
[2022-11-02 20:57:06,677 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcca029c-c17a-4f9a-acfb-948995548b46/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2022-11-02 20:57:06,686 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcca029c-c17a-4f9a-acfb-948995548b46/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process
[2022-11-02 20:57:07,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-11-02 20:57:07,064 INFO L263 TraceCheckSpWp]: Trace formula consists of 620 conjuncts, 31 conjunts are in the unsatisfiable core
[2022-11-02 20:57:07,069 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2022-11-02 20:57:07,527 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-11-02 20:57:07,528 INFO L328 TraceCheckSpWp]: Computing backward predicates...
[2022-11-02 20:57:08,830 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-11-02 20:57:08,831 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2022-11-02 20:57:08,831 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [516459771]
[2022-11-02 20:57:08,831 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [516459771] provided 0 perfect and 2 imperfect interpolant sequences
[2022-11-02 20:57:08,831 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences.
[2022-11-02 20:57:08,832 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 24
[2022-11-02 20:57:08,832 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2114315251]
[2022-11-02 20:57:08,832 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton
[2022-11-02 20:57:08,832 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 24 states
[2022-11-02 20:57:08,833 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2022-11-02 20:57:08,833 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants.
[2022-11-02 20:57:08,834 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=494, Unknown=0, NotChecked=0, Total=552
[2022-11-02 20:57:08,834 INFO L87 Difference]: Start difference. First operand 43 states and 57 transitions. Second operand has 24 states, 24 states have (on average 1.25) internal successors, (30), 24 states have internal predecessors, (30), 0 states have call successors, (0), 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 20:57:10,763 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-11-02 20:57:10,763 INFO L93 Difference]: Finished difference Result 140 states and 180 transitions.
[2022-11-02 20:57:10,763 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states.
[2022-11-02 20:57:10,763 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 24 states have (on average 1.25) internal successors, (30), 24 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16
[2022-11-02 20:57:10,764 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-11-02 20:57:10,764 INFO L225 Difference]: With dead ends: 140
[2022-11-02 20:57:10,765 INFO L226 Difference]: Without dead ends: 138
[2022-11-02 20:57:10,766 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 409 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=552, Invalid=1998, Unknown=0, NotChecked=0, Total=2550
[2022-11-02 20:57:10,767 INFO L413 NwaCegarLoop]: 39 mSDtfsCounter, 150 mSDsluCounter, 470 mSDsCounter, 0 mSdLazyCounter, 191 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 150 SdHoareTripleChecker+Valid, 509 SdHoareTripleChecker+Invalid, 411 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 191 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 204 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time
[2022-11-02 20:57:10,767 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [150 Valid, 509 Invalid, 411 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 191 Invalid, 0 Unknown, 204 Unchecked, 0.6s Time]
[2022-11-02 20:57:10,768 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 138 states.
[2022-11-02 20:57:10,777 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 138 to 56.
[2022-11-02 20:57:10,778 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 56 states, 55 states have (on average 1.3636363636363635) internal successors, (75), 55 states have internal predecessors, (75), 0 states have call successors, (0), 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 20:57:10,778 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 75 transitions.
[2022-11-02 20:57:10,779 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 75 transitions. Word has length 16
[2022-11-02 20:57:10,779 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-11-02 20:57:10,779 INFO L495 AbstractCegarLoop]: Abstraction has 56 states and 75 transitions.
[2022-11-02 20:57:10,779 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 1.25) internal successors, (30), 24 states have internal predecessors, (30), 0 states have call successors, (0), 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 20:57:10,780 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 75 transitions.
[2022-11-02 20:57:10,780 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28
[2022-11-02 20:57:10,781 INFO L187 NwaCegarLoop]: Found error trace
[2022-11-02 20:57:10,781 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1]
[2022-11-02 20:57:10,792 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcca029c-c17a-4f9a-acfb-948995548b46/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0
[2022-11-02 20:57:10,985 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcca029c-c17a-4f9a-acfb-948995548b46/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3
[2022-11-02 20:57:10,985 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2022-11-02 20:57:10,986 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-11-02 20:57:10,986 INFO L85 PathProgramCache]: Analyzing trace with hash -601503479, now seen corresponding path program 2 times
[2022-11-02 20:57:10,987 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF
[2022-11-02 20:57:10,987 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [449366437]
[2022-11-02 20:57:10,987 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1
[2022-11-02 20:57:10,987 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3
[2022-11-02 20:57:10,987 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcca029c-c17a-4f9a-acfb-948995548b46/bin/uautomizer-Dbtcem3rbc/mathsat
[2022-11-02 20:57:10,988 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcca029c-c17a-4f9a-acfb-948995548b46/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2022-11-02 20:57:11,010 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcca029c-c17a-4f9a-acfb-948995548b46/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process
[2022-11-02 20:57:11,518 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s)
[2022-11-02 20:57:11,518 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat
[2022-11-02 20:57:11,546 INFO L263 TraceCheckSpWp]: Trace formula consists of 1149 conjuncts, 23 conjunts are in the unsatisfiable core
[2022-11-02 20:57:11,552 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2022-11-02 20:57:11,977 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked.
[2022-11-02 20:57:11,977 INFO L328 TraceCheckSpWp]: Computing backward predicates...
[2022-11-02 20:57:12,799 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked.
[2022-11-02 20:57:12,799 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2022-11-02 20:57:12,799 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [449366437]
[2022-11-02 20:57:12,799 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [449366437] provided 0 perfect and 2 imperfect interpolant sequences
[2022-11-02 20:57:12,800 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences.
[2022-11-02 20:57:12,800 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 16
[2022-11-02 20:57:12,800 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [796673756]
[2022-11-02 20:57:12,800 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton
[2022-11-02 20:57:12,801 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states
[2022-11-02 20:57:12,801 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2022-11-02 20:57:12,802 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants.
[2022-11-02 20:57:12,802 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=204, Unknown=0, NotChecked=0, Total=240
[2022-11-02 20:57:12,802 INFO L87 Difference]: Start difference. First operand 56 states and 75 transitions. Second operand has 16 states, 16 states have (on average 2.5) internal successors, (40), 16 states have internal predecessors, (40), 0 states have call successors, (0), 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 20:57:13,700 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-11-02 20:57:13,700 INFO L93 Difference]: Finished difference Result 116 states and 149 transitions.
[2022-11-02 20:57:13,701 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states.
[2022-11-02 20:57:13,701 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.5) internal successors, (40), 16 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 27
[2022-11-02 20:57:13,701 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-11-02 20:57:13,702 INFO L225 Difference]: With dead ends: 116
[2022-11-02 20:57:13,702 INFO L226 Difference]: Without dead ends: 114
[2022-11-02 20:57:13,703 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 143 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=279, Invalid=777, Unknown=0, NotChecked=0, Total=1056
[2022-11-02 20:57:13,704 INFO L413 NwaCegarLoop]: 17 mSDtfsCounter, 158 mSDsluCounter, 114 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 158 SdHoareTripleChecker+Valid, 131 SdHoareTripleChecker+Invalid, 175 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 90 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time
[2022-11-02 20:57:13,704 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [158 Valid, 131 Invalid, 175 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 50 Invalid, 0 Unknown, 90 Unchecked, 0.3s Time]
[2022-11-02 20:57:13,705 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 114 states.
[2022-11-02 20:57:13,715 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 114 to 58.
[2022-11-02 20:57:13,715 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 58 states, 57 states have (on average 1.368421052631579) internal successors, (78), 57 states have internal predecessors, (78), 0 states have call successors, (0), 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 20:57:13,716 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 78 transitions.
[2022-11-02 20:57:13,716 INFO L78 Accepts]: Start accepts. Automaton has 58 states and 78 transitions. Word has length 27
[2022-11-02 20:57:13,717 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-11-02 20:57:13,717 INFO L495 AbstractCegarLoop]: Abstraction has 58 states and 78 transitions.
[2022-11-02 20:57:13,717 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.5) internal successors, (40), 16 states have internal predecessors, (40), 0 states have call successors, (0), 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 20:57:13,717 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 78 transitions.
[2022-11-02 20:57:13,718 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28
[2022-11-02 20:57:13,718 INFO L187 NwaCegarLoop]: Found error trace
[2022-11-02 20:57:13,718 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1]
[2022-11-02 20:57:13,745 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcca029c-c17a-4f9a-acfb-948995548b46/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0
[2022-11-02 20:57:13,939 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcca029c-c17a-4f9a-acfb-948995548b46/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3
[2022-11-02 20:57:13,939 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2022-11-02 20:57:13,940 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-11-02 20:57:13,940 INFO L85 PathProgramCache]: Analyzing trace with hash -599656437, now seen corresponding path program 1 times
[2022-11-02 20:57:13,941 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF
[2022-11-02 20:57:13,941 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1889156899]
[2022-11-02 20:57:13,941 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-11-02 20:57:13,942 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3
[2022-11-02 20:57:13,942 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcca029c-c17a-4f9a-acfb-948995548b46/bin/uautomizer-Dbtcem3rbc/mathsat
[2022-11-02 20:57:13,943 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcca029c-c17a-4f9a-acfb-948995548b46/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2022-11-02 20:57:13,982 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcca029c-c17a-4f9a-acfb-948995548b46/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process
[2022-11-02 20:57:14,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-11-02 20:57:14,462 INFO L263 TraceCheckSpWp]: Trace formula consists of 1149 conjuncts, 28 conjunts are in the unsatisfiable core
[2022-11-02 20:57:14,469 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2022-11-02 20:57:14,984 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked.
[2022-11-02 20:57:14,984 INFO L328 TraceCheckSpWp]: Computing backward predicates...
[2022-11-02 20:57:15,945 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked.
[2022-11-02 20:57:15,945 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2022-11-02 20:57:15,945 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1889156899]
[2022-11-02 20:57:15,945 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1889156899] provided 0 perfect and 2 imperfect interpolant sequences
[2022-11-02 20:57:15,946 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences.
[2022-11-02 20:57:15,946 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 20
[2022-11-02 20:57:15,946 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1346855397]
[2022-11-02 20:57:15,946 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton
[2022-11-02 20:57:15,947 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 20 states
[2022-11-02 20:57:15,947 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2022-11-02 20:57:15,947 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants.
[2022-11-02 20:57:15,948 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=332, Unknown=0, NotChecked=0, Total=380
[2022-11-02 20:57:15,948 INFO L87 Difference]: Start difference. First operand 58 states and 78 transitions. Second operand has 20 states, 20 states have (on average 2.6) internal successors, (52), 20 states have internal predecessors, (52), 0 states have call successors, (0), 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 20:57:17,649 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-11-02 20:57:17,649 INFO L93 Difference]: Finished difference Result 156 states and 203 transitions.
[2022-11-02 20:57:17,649 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states.
[2022-11-02 20:57:17,650 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 2.6) internal successors, (52), 20 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 27
[2022-11-02 20:57:17,650 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-11-02 20:57:17,651 INFO L225 Difference]: With dead ends: 156
[2022-11-02 20:57:17,651 INFO L226 Difference]: Without dead ends: 154
[2022-11-02 20:57:17,652 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 33 SyntacticMatches, 3 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 528 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=641, Invalid=2011, Unknown=0, NotChecked=0, Total=2652
[2022-11-02 20:57:17,653 INFO L413 NwaCegarLoop]: 19 mSDtfsCounter, 235 mSDsluCounter, 224 mSDsCounter, 0 mSdLazyCounter, 107 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 235 SdHoareTripleChecker+Valid, 243 SdHoareTripleChecker+Invalid, 322 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 107 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 183 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time
[2022-11-02 20:57:17,653 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [235 Valid, 243 Invalid, 322 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 107 Invalid, 0 Unknown, 183 Unchecked, 0.4s Time]
[2022-11-02 20:57:17,654 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 154 states.
[2022-11-02 20:57:17,663 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 154 to 60.
[2022-11-02 20:57:17,663 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 60 states, 59 states have (on average 1.3728813559322033) internal successors, (81), 59 states have internal predecessors, (81), 0 states have call successors, (0), 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 20:57:17,664 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 81 transitions.
[2022-11-02 20:57:17,664 INFO L78 Accepts]: Start accepts. Automaton has 60 states and 81 transitions. Word has length 27
[2022-11-02 20:57:17,664 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-11-02 20:57:17,665 INFO L495 AbstractCegarLoop]: Abstraction has 60 states and 81 transitions.
[2022-11-02 20:57:17,665 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 2.6) internal successors, (52), 20 states have internal predecessors, (52), 0 states have call successors, (0), 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 20:57:17,665 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 81 transitions.
[2022-11-02 20:57:17,666 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28
[2022-11-02 20:57:17,666 INFO L187 NwaCegarLoop]: Found error trace
[2022-11-02 20:57:17,666 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1]
[2022-11-02 20:57:17,686 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcca029c-c17a-4f9a-acfb-948995548b46/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0
[2022-11-02 20:57:17,873 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcca029c-c17a-4f9a-acfb-948995548b46/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3
[2022-11-02 20:57:17,873 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2022-11-02 20:57:17,874 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-11-02 20:57:17,874 INFO L85 PathProgramCache]: Analyzing trace with hash 1173503883, now seen corresponding path program 1 times
[2022-11-02 20:57:17,874 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF
[2022-11-02 20:57:17,874 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [937848102]
[2022-11-02 20:57:17,875 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-11-02 20:57:17,875 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3
[2022-11-02 20:57:17,875 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcca029c-c17a-4f9a-acfb-948995548b46/bin/uautomizer-Dbtcem3rbc/mathsat
[2022-11-02 20:57:17,875 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcca029c-c17a-4f9a-acfb-948995548b46/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2022-11-02 20:57:17,877 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcca029c-c17a-4f9a-acfb-948995548b46/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process
[2022-11-02 20:57:18,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-11-02 20:57:18,357 INFO L263 TraceCheckSpWp]: Trace formula consists of 1149 conjuncts, 113 conjunts are in the unsatisfiable core
[2022-11-02 20:57:18,366 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2022-11-02 20:58:03,480 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-11-02 20:58:03,481 INFO L328 TraceCheckSpWp]: Computing backward predicates...