./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/ps3-ll_unwindbound50.c --full-output --architecture 32bit
--------------------------------------------------------------------------------
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_5fb0d9e0-4f1c-4089-9ab1-2e2d3dba3da8/bin/uautomizer-Dbtcem3rbc/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fb0d9e0-4f1c-4089-9ab1-2e2d3dba3da8/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_5fb0d9e0-4f1c-4089-9ab1-2e2d3dba3da8/bin/uautomizer-Dbtcem3rbc/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fb0d9e0-4f1c-4089-9ab1-2e2d3dba3da8/bin/uautomizer-Dbtcem3rbc/config/AutomizerReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/ps3-ll_unwindbound50.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fb0d9e0-4f1c-4089-9ab1-2e2d3dba3da8/bin/uautomizer-Dbtcem3rbc/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fb0d9e0-4f1c-4089-9ab1-2e2d3dba3da8/bin/uautomizer-Dbtcem3rbc --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) )
--witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash eebd89172d2922b25518196d7199bdc2b40bcf663d7c245ca245657f0105901c
--- 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 20:44:19,491 INFO L177 SettingsManager]: Resetting all preferences to default values...
[2022-11-02 20:44:19,493 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values
[2022-11-02 20:44:19,525 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2022-11-02 20:44:19,526 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2022-11-02 20:44:19,527 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2022-11-02 20:44:19,529 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2022-11-02 20:44:19,531 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values
[2022-11-02 20:44:19,533 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values
[2022-11-02 20:44:19,535 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values
[2022-11-02 20:44:19,536 INFO L181 SettingsManager]: Resetting Sifa preferences to default values
[2022-11-02 20:44:19,537 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2022-11-02 20:44:19,538 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values
[2022-11-02 20:44:19,539 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values
[2022-11-02 20:44:19,541 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2022-11-02 20:44:19,542 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values
[2022-11-02 20:44:19,544 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2022-11-02 20:44:19,545 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2022-11-02 20:44:19,547 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2022-11-02 20:44:19,549 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values
[2022-11-02 20:44:19,551 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2022-11-02 20:44:19,553 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values
[2022-11-02 20:44:19,555 INFO L181 SettingsManager]: Resetting Referee preferences to default values
[2022-11-02 20:44:19,556 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values
[2022-11-02 20:44:19,560 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2022-11-02 20:44:19,561 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2022-11-02 20:44:19,561 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values
[2022-11-02 20:44:19,562 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values
[2022-11-02 20:44:19,563 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values
[2022-11-02 20:44:19,564 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring...
[2022-11-02 20:44:19,564 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values
[2022-11-02 20:44:19,565 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values
[2022-11-02 20:44:19,566 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values
[2022-11-02 20:44:19,567 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values
[2022-11-02 20:44:19,569 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2022-11-02 20:44:19,569 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values
[2022-11-02 20:44:19,570 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring...
[2022-11-02 20:44:19,570 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring...
[2022-11-02 20:44:19,571 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values
[2022-11-02 20:44:19,572 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values
[2022-11-02 20:44:19,573 INFO L188 SettingsManager]: Finished resetting all preferences to default values...
[2022-11-02 20:44:19,574 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fb0d9e0-4f1c-4089-9ab1-2e2d3dba3da8/bin/uautomizer-Dbtcem3rbc/config/svcomp-Reach-32bit-Automizer_Default.epf
[2022-11-02 20:44:19,613 INFO L113 SettingsManager]: Loading preferences was successful
[2022-11-02 20:44:19,614 INFO L115 SettingsManager]: Preferences different from defaults after loading the file:
[2022-11-02 20:44:19,614 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2022-11-02 20:44:19,614 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2022-11-02 20:44:19,615 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2022-11-02 20:44:19,615 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2022-11-02 20:44:19,616 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2022-11-02 20:44:19,617 INFO L138 SettingsManager]: * Create parallel compositions if possible=false
[2022-11-02 20:44:19,617 INFO L138 SettingsManager]: * Use SBE=true
[2022-11-02 20:44:19,617 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2022-11-02 20:44:19,617 INFO L138 SettingsManager]: * sizeof long=4
[2022-11-02 20:44:19,617 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true
[2022-11-02 20:44:19,618 INFO L138 SettingsManager]: * sizeof POINTER=4
[2022-11-02 20:44:19,618 INFO L138 SettingsManager]: * Check division by zero=IGNORE
[2022-11-02 20:44:19,618 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE
[2022-11-02 20:44:19,618 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE
[2022-11-02 20:44:19,619 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE
[2022-11-02 20:44:19,619 INFO L138 SettingsManager]: * sizeof long double=12
[2022-11-02 20:44:19,619 INFO L138 SettingsManager]: * Check if freed pointer was valid=false
[2022-11-02 20:44:19,619 INFO L138 SettingsManager]: * Use constant arrays=true
[2022-11-02 20:44:19,619 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE
[2022-11-02 20:44:19,620 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2022-11-02 20:44:19,620 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements
[2022-11-02 20:44:19,620 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode
[2022-11-02 20:44:19,620 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2022-11-02 20:44:19,621 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2022-11-02 20:44:19,621 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP
[2022-11-02 20:44:19,621 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2022-11-02 20:44:19,621 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL
[2022-11-02 20:44:19,621 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2022-11-02 20:44:19,622 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false
[2022-11-02 20:44:19,622 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET
[2022-11-02 20:44:19,622 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2022-11-02 20:44:19,622 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_5fb0d9e0-4f1c-4089-9ab1-2e2d3dba3da8/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$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fb0d9e0-4f1c-4089-9ab1-2e2d3dba3da8/bin/uautomizer-Dbtcem3rbc
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) )
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> eebd89172d2922b25518196d7199bdc2b40bcf663d7c245ca245657f0105901c
[2022-11-02 20:44:19,925 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp
[2022-11-02 20:44:19,947 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2022-11-02 20:44:19,950 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2022-11-02 20:44:19,951 INFO L271 PluginConnector]: Initializing CDTParser...
[2022-11-02 20:44:19,952 INFO L275 PluginConnector]: CDTParser initialized
[2022-11-02 20:44:19,954 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fb0d9e0-4f1c-4089-9ab1-2e2d3dba3da8/bin/uautomizer-Dbtcem3rbc/../../sv-benchmarks/c/nla-digbench-scaling/ps3-ll_unwindbound50.c
[2022-11-02 20:44:20,045 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fb0d9e0-4f1c-4089-9ab1-2e2d3dba3da8/bin/uautomizer-Dbtcem3rbc/data/242a74048/6e1be8902fed411385b1136d27cb7035/FLAG64e2402f5
[2022-11-02 20:44:20,617 INFO L306 CDTParser]: Found 1 translation units.
[2022-11-02 20:44:20,618 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fb0d9e0-4f1c-4089-9ab1-2e2d3dba3da8/sv-benchmarks/c/nla-digbench-scaling/ps3-ll_unwindbound50.c
[2022-11-02 20:44:20,625 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fb0d9e0-4f1c-4089-9ab1-2e2d3dba3da8/bin/uautomizer-Dbtcem3rbc/data/242a74048/6e1be8902fed411385b1136d27cb7035/FLAG64e2402f5
[2022-11-02 20:44:20,969 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fb0d9e0-4f1c-4089-9ab1-2e2d3dba3da8/bin/uautomizer-Dbtcem3rbc/data/242a74048/6e1be8902fed411385b1136d27cb7035
[2022-11-02 20:44:20,976 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2022-11-02 20:44:20,980 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements.
[2022-11-02 20:44:20,982 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2022-11-02 20:44:20,982 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator...
[2022-11-02 20:44:20,987 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized
[2022-11-02 20:44:20,987 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 08:44:20" (1/1) ...
[2022-11-02 20:44:20,989 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@42c2a132 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:44:20, skipping insertion in model container
[2022-11-02 20:44:20,989 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 08:44:20" (1/1) ...
[2022-11-02 20:44:20,998 INFO L145 MainTranslator]: Starting translation in SV-COMP mode
[2022-11-02 20:44:21,014 INFO L178 MainTranslator]: Built tables and reachable declarations
[2022-11-02 20:44:21,230 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_5fb0d9e0-4f1c-4089-9ab1-2e2d3dba3da8/sv-benchmarks/c/nla-digbench-scaling/ps3-ll_unwindbound50.c[458,471]
[2022-11-02 20:44:21,253 INFO L210 PostProcessor]: Analyzing one entry point: main
[2022-11-02 20:44:21,263 INFO L203 MainTranslator]: Completed pre-run
[2022-11-02 20:44:21,280 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_5fb0d9e0-4f1c-4089-9ab1-2e2d3dba3da8/sv-benchmarks/c/nla-digbench-scaling/ps3-ll_unwindbound50.c[458,471]
[2022-11-02 20:44:21,294 INFO L210 PostProcessor]: Analyzing one entry point: main
[2022-11-02 20:44:21,316 INFO L208 MainTranslator]: Completed translation
[2022-11-02 20:44:21,316 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:44:21 WrapperNode
[2022-11-02 20:44:21,316 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2022-11-02 20:44:21,318 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2022-11-02 20:44:21,318 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner...
[2022-11-02 20:44:21,319 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized
[2022-11-02 20:44:21,328 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:44:21" (1/1) ...
[2022-11-02 20:44:21,336 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:44:21" (1/1) ...
[2022-11-02 20:44:21,358 INFO L138 Inliner]: procedures = 14, calls = 9, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 38
[2022-11-02 20:44:21,359 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2022-11-02 20:44:21,360 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2022-11-02 20:44:21,360 INFO L271 PluginConnector]: Initializing Boogie Preprocessor...
[2022-11-02 20:44:21,360 INFO L275 PluginConnector]: Boogie Preprocessor initialized
[2022-11-02 20:44:21,371 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:44:21" (1/1) ...
[2022-11-02 20:44:21,371 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:44:21" (1/1) ...
[2022-11-02 20:44:21,383 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:44:21" (1/1) ...
[2022-11-02 20:44:21,384 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:44:21" (1/1) ...
[2022-11-02 20:44:21,387 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:44:21" (1/1) ...
[2022-11-02 20:44:21,397 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:44:21" (1/1) ...
[2022-11-02 20:44:21,399 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:44:21" (1/1) ...
[2022-11-02 20:44:21,401 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:44:21" (1/1) ...
[2022-11-02 20:44:21,405 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2022-11-02 20:44:21,411 INFO L113 PluginConnector]: ------------------------RCFGBuilder----------------------------
[2022-11-02 20:44:21,411 INFO L271 PluginConnector]: Initializing RCFGBuilder...
[2022-11-02 20:44:21,411 INFO L275 PluginConnector]: RCFGBuilder initialized
[2022-11-02 20:44:21,413 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:44:21" (1/1) ...
[2022-11-02 20:44:21,422 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2022-11-02 20:44:21,449 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fb0d9e0-4f1c-4089-9ab1-2e2d3dba3da8/bin/uautomizer-Dbtcem3rbc/z3
[2022-11-02 20:44:21,469 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fb0d9e0-4f1c-4089-9ab1-2e2d3dba3da8/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null)
[2022-11-02 20:44:21,504 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fb0d9e0-4f1c-4089-9ab1-2e2d3dba3da8/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process
[2022-11-02 20:44:21,525 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2022-11-02 20:44:21,525 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int
[2022-11-02 20:44:21,525 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2022-11-02 20:44:21,525 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2022-11-02 20:44:21,525 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert
[2022-11-02 20:44:21,526 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert
[2022-11-02 20:44:21,610 INFO L235 CfgBuilder]: Building ICFG
[2022-11-02 20:44:21,612 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation
[2022-11-02 20:44:21,740 INFO L276 CfgBuilder]: Performing block encoding
[2022-11-02 20:44:21,746 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2022-11-02 20:44:21,746 INFO L300 CfgBuilder]: Removed 1 assume(true) statements.
[2022-11-02 20:44:21,748 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 08:44:21 BoogieIcfgContainer
[2022-11-02 20:44:21,749 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2022-11-02 20:44:21,751 INFO L113 PluginConnector]: ------------------------TraceAbstraction----------------------------
[2022-11-02 20:44:21,751 INFO L271 PluginConnector]: Initializing TraceAbstraction...
[2022-11-02 20:44:21,759 INFO L275 PluginConnector]: TraceAbstraction initialized
[2022-11-02 20:44:21,759 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.11 08:44:20" (1/3) ...
[2022-11-02 20:44:21,760 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2fb804ba and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 08:44:21, skipping insertion in model container
[2022-11-02 20:44:21,760 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:44:21" (2/3) ...
[2022-11-02 20:44:21,760 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2fb804ba and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 08:44:21, skipping insertion in model container
[2022-11-02 20:44:21,760 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 08:44:21" (3/3) ...
[2022-11-02 20:44:21,762 INFO L112 eAbstractionObserver]: Analyzing ICFG ps3-ll_unwindbound50.c
[2022-11-02 20:44:21,781 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2022-11-02 20:44:21,782 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2022-11-02 20:44:21,838 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2022-11-02 20:44:21,846 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;@48bb6020, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2022-11-02 20:44:21,846 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2022-11-02 20:44:21,850 INFO L276 IsEmpty]: Start isEmpty. Operand has 17 states, 12 states have (on average 1.4166666666666667) internal successors, (17), 13 states have internal predecessors, (17), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2)
[2022-11-02 20:44:21,858 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8
[2022-11-02 20:44:21,858 INFO L187 NwaCegarLoop]: Found error trace
[2022-11-02 20:44:21,859 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1]
[2022-11-02 20:44:21,860 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2022-11-02 20:44:21,865 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-11-02 20:44:21,865 INFO L85 PathProgramCache]: Analyzing trace with hash 1819757606, now seen corresponding path program 1 times
[2022-11-02 20:44:21,876 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-11-02 20:44:21,876 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1611893625]
[2022-11-02 20:44:21,876 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-11-02 20:44:21,877 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-11-02 20:44:21,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-11-02 20:44:21,989 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-11-02 20:44:21,989 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1611893625]
[2022-11-02 20:44:21,990 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic
[2022-11-02 20:44:21,990 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1297789370]
[2022-11-02 20:44:21,990 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-11-02 20:44:21,991 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2022-11-02 20:44:21,991 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fb0d9e0-4f1c-4089-9ab1-2e2d3dba3da8/bin/uautomizer-Dbtcem3rbc/z3
[2022-11-02 20:44:21,995 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fb0d9e0-4f1c-4089-9ab1-2e2d3dba3da8/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2022-11-02 20:44:22,003 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fb0d9e0-4f1c-4089-9ab1-2e2d3dba3da8/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process
[2022-11-02 20:44:22,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-11-02 20:44:22,101 INFO L263 TraceCheckSpWp]: Trace formula consists of 45 conjuncts, 1 conjunts are in the unsatisfiable core
[2022-11-02 20:44:22,105 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2022-11-02 20:44:22,149 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 20:44:22,162 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2022-11-02 20:44:22,163 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1297789370] provided 1 perfect and 0 imperfect interpolant sequences
[2022-11-02 20:44:22,164 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-11-02 20:44:22,164 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2022-11-02 20:44:22,166 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1221078195]
[2022-11-02 20:44:22,167 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-11-02 20:44:22,172 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2022-11-02 20:44:22,172 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-11-02 20:44:22,225 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2022-11-02 20:44:22,231 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2022-11-02 20:44:22,233 INFO L87 Difference]: Start difference. First operand has 17 states, 12 states have (on average 1.4166666666666667) internal successors, (17), 13 states have internal predecessors, (17), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Second operand has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-11-02 20:44:22,274 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-11-02 20:44:22,275 INFO L93 Difference]: Finished difference Result 32 states and 42 transitions.
[2022-11-02 20:44:22,276 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states.
[2022-11-02 20:44:22,277 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7
[2022-11-02 20:44:22,277 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-11-02 20:44:22,287 INFO L225 Difference]: With dead ends: 32
[2022-11-02 20:44:22,287 INFO L226 Difference]: Without dead ends: 13
[2022-11-02 20:44:22,296 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2022-11-02 20:44:22,308 INFO L413 NwaCegarLoop]: 19 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 19 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2022-11-02 20:44:22,311 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2022-11-02 20:44:22,329 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states.
[2022-11-02 20:44:22,350 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 13.
[2022-11-02 20:44:22,351 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13 states, 9 states have (on average 1.3333333333333333) internal successors, (12), 10 states have internal predecessors, (12), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2022-11-02 20:44:22,353 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 15 transitions.
[2022-11-02 20:44:22,354 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 15 transitions. Word has length 7
[2022-11-02 20:44:22,355 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-11-02 20:44:22,356 INFO L495 AbstractCegarLoop]: Abstraction has 13 states and 15 transitions.
[2022-11-02 20:44:22,357 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-11-02 20:44:22,358 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 15 transitions.
[2022-11-02 20:44:22,359 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9
[2022-11-02 20:44:22,360 INFO L187 NwaCegarLoop]: Found error trace
[2022-11-02 20:44:22,360 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1]
[2022-11-02 20:44:22,404 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fb0d9e0-4f1c-4089-9ab1-2e2d3dba3da8/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0
[2022-11-02 20:44:22,576 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fb0d9e0-4f1c-4089-9ab1-2e2d3dba3da8/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0
[2022-11-02 20:44:22,577 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2022-11-02 20:44:22,577 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-11-02 20:44:22,578 INFO L85 PathProgramCache]: Analyzing trace with hash 178410715, now seen corresponding path program 1 times
[2022-11-02 20:44:22,579 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-11-02 20:44:22,579 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [496197538]
[2022-11-02 20:44:22,579 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-11-02 20:44:22,579 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-11-02 20:44:22,610 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2022-11-02 20:44:22,610 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1171574152]
[2022-11-02 20:44:22,610 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-11-02 20:44:22,611 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2022-11-02 20:44:22,611 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fb0d9e0-4f1c-4089-9ab1-2e2d3dba3da8/bin/uautomizer-Dbtcem3rbc/z3
[2022-11-02 20:44:22,620 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fb0d9e0-4f1c-4089-9ab1-2e2d3dba3da8/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2022-11-02 20:44:22,634 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fb0d9e0-4f1c-4089-9ab1-2e2d3dba3da8/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process
[2022-11-02 20:44:22,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-11-02 20:44:22,692 INFO L263 TraceCheckSpWp]: Trace formula consists of 49 conjuncts, 3 conjunts are in the unsatisfiable core
[2022-11-02 20:44:22,694 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2022-11-02 20:44:22,771 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 20:44:22,771 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2022-11-02 20:44:22,771 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-11-02 20:44:22,771 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [496197538]
[2022-11-02 20:44:22,772 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2022-11-02 20:44:22,772 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1171574152]
[2022-11-02 20:44:22,772 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1171574152] provided 1 perfect and 0 imperfect interpolant sequences
[2022-11-02 20:44:22,772 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-11-02 20:44:22,772 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2022-11-02 20:44:22,773 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [860267571]
[2022-11-02 20:44:22,773 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-11-02 20:44:22,774 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2022-11-02 20:44:22,774 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-11-02 20:44:22,775 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2022-11-02 20:44:22,775 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2022-11-02 20:44:22,775 INFO L87 Difference]: Start difference. First operand 13 states and 15 transitions. Second operand has 4 states, 4 states have (on average 1.75) internal successors, (7), 3 states have internal predecessors, (7), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-11-02 20:44:22,804 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-11-02 20:44:22,805 INFO L93 Difference]: Finished difference Result 22 states and 24 transitions.
[2022-11-02 20:44:22,807 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states.
[2022-11-02 20:44:22,808 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 1.75) internal successors, (7), 3 states have internal predecessors, (7), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8
[2022-11-02 20:44:22,808 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-11-02 20:44:22,809 INFO L225 Difference]: With dead ends: 22
[2022-11-02 20:44:22,810 INFO L226 Difference]: Without dead ends: 15
[2022-11-02 20:44:22,811 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2022-11-02 20:44:22,813 INFO L413 NwaCegarLoop]: 13 mSDtfsCounter, 0 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 35 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2022-11-02 20:44:22,816 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 35 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2022-11-02 20:44:22,818 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states.
[2022-11-02 20:44:22,823 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15.
[2022-11-02 20:44:22,825 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15 states, 11 states have (on average 1.2727272727272727) internal successors, (14), 12 states have internal predecessors, (14), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2022-11-02 20:44:22,826 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 17 transitions.
[2022-11-02 20:44:22,827 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 17 transitions. Word has length 8
[2022-11-02 20:44:22,828 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-11-02 20:44:22,828 INFO L495 AbstractCegarLoop]: Abstraction has 15 states and 17 transitions.
[2022-11-02 20:44:22,829 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 1.75) internal successors, (7), 3 states have internal predecessors, (7), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-11-02 20:44:22,829 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 17 transitions.
[2022-11-02 20:44:22,829 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9
[2022-11-02 20:44:22,830 INFO L187 NwaCegarLoop]: Found error trace
[2022-11-02 20:44:22,830 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1]
[2022-11-02 20:44:22,878 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fb0d9e0-4f1c-4089-9ab1-2e2d3dba3da8/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0
[2022-11-02 20:44:23,051 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fb0d9e0-4f1c-4089-9ab1-2e2d3dba3da8/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1
[2022-11-02 20:44:23,051 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2022-11-02 20:44:23,052 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-11-02 20:44:23,052 INFO L85 PathProgramCache]: Analyzing trace with hash 180198175, now seen corresponding path program 1 times
[2022-11-02 20:44:23,052 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-11-02 20:44:23,053 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [482168581]
[2022-11-02 20:44:23,053 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-11-02 20:44:23,053 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-11-02 20:44:23,066 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2022-11-02 20:44:23,066 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1574158030]
[2022-11-02 20:44:23,066 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-11-02 20:44:23,067 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2022-11-02 20:44:23,067 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fb0d9e0-4f1c-4089-9ab1-2e2d3dba3da8/bin/uautomizer-Dbtcem3rbc/z3
[2022-11-02 20:44:23,070 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fb0d9e0-4f1c-4089-9ab1-2e2d3dba3da8/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2022-11-02 20:44:23,075 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fb0d9e0-4f1c-4089-9ab1-2e2d3dba3da8/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process
[2022-11-02 20:44:23,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-11-02 20:44:23,152 INFO L263 TraceCheckSpWp]: Trace formula consists of 49 conjuncts, 7 conjunts are in the unsatisfiable core
[2022-11-02 20:44:23,160 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2022-11-02 20:44:23,240 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 20:44:23,240 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2022-11-02 20:44:23,241 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-11-02 20:44:23,241 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [482168581]
[2022-11-02 20:44:23,241 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2022-11-02 20:44:23,242 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1574158030]
[2022-11-02 20:44:23,242 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1574158030] provided 1 perfect and 0 imperfect interpolant sequences
[2022-11-02 20:44:23,242 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-11-02 20:44:23,243 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2022-11-02 20:44:23,243 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [775917235]
[2022-11-02 20:44:23,243 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-11-02 20:44:23,244 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2022-11-02 20:44:23,244 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-11-02 20:44:23,245 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2022-11-02 20:44:23,245 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2022-11-02 20:44:23,246 INFO L87 Difference]: Start difference. First operand 15 states and 17 transitions. Second operand has 5 states, 5 states have (on average 1.4) internal successors, (7), 4 states have internal predecessors, (7), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-11-02 20:44:23,318 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-11-02 20:44:23,318 INFO L93 Difference]: Finished difference Result 24 states and 27 transitions.
[2022-11-02 20:44:23,319 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states.
[2022-11-02 20:44:23,320 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 1.4) internal successors, (7), 4 states have internal predecessors, (7), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8
[2022-11-02 20:44:23,320 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-11-02 20:44:23,321 INFO L225 Difference]: With dead ends: 24
[2022-11-02 20:44:23,321 INFO L226 Difference]: Without dead ends: 21
[2022-11-02 20:44:23,322 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30
[2022-11-02 20:44:23,327 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 6 mSDsluCounter, 29 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 41 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2022-11-02 20:44:23,334 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 41 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2022-11-02 20:44:23,337 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states.
[2022-11-02 20:44:23,353 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 21.
[2022-11-02 20:44:23,356 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21 states, 15 states have (on average 1.2) internal successors, (18), 16 states have internal predecessors, (18), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2)
[2022-11-02 20:44:23,358 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 23 transitions.
[2022-11-02 20:44:23,359 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 23 transitions. Word has length 8
[2022-11-02 20:44:23,359 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-11-02 20:44:23,360 INFO L495 AbstractCegarLoop]: Abstraction has 21 states and 23 transitions.
[2022-11-02 20:44:23,360 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 1.4) internal successors, (7), 4 states have internal predecessors, (7), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-11-02 20:44:23,361 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 23 transitions.
[2022-11-02 20:44:23,362 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17
[2022-11-02 20:44:23,363 INFO L187 NwaCegarLoop]: Found error trace
[2022-11-02 20:44:23,363 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-11-02 20:44:23,402 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fb0d9e0-4f1c-4089-9ab1-2e2d3dba3da8/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0
[2022-11-02 20:44:23,564 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fb0d9e0-4f1c-4089-9ab1-2e2d3dba3da8/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2022-11-02 20:44:23,564 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2022-11-02 20:44:23,565 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-11-02 20:44:23,565 INFO L85 PathProgramCache]: Analyzing trace with hash -1542398814, now seen corresponding path program 1 times
[2022-11-02 20:44:23,566 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-11-02 20:44:23,566 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1510260557]
[2022-11-02 20:44:23,566 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-11-02 20:44:23,566 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-11-02 20:44:23,584 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2022-11-02 20:44:23,585 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [772706394]
[2022-11-02 20:44:23,585 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-11-02 20:44:23,586 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2022-11-02 20:44:23,586 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fb0d9e0-4f1c-4089-9ab1-2e2d3dba3da8/bin/uautomizer-Dbtcem3rbc/z3
[2022-11-02 20:44:23,591 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fb0d9e0-4f1c-4089-9ab1-2e2d3dba3da8/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2022-11-02 20:44:23,596 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fb0d9e0-4f1c-4089-9ab1-2e2d3dba3da8/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process
[2022-11-02 20:44:23,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-11-02 20:44:23,650 INFO L263 TraceCheckSpWp]: Trace formula consists of 70 conjuncts, 5 conjunts are in the unsatisfiable core
[2022-11-02 20:44:23,652 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2022-11-02 20:44:23,700 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-11-02 20:44:23,701 INFO L328 TraceCheckSpWp]: Computing backward predicates...
[2022-11-02 20:44:23,757 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-11-02 20:44:23,757 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-11-02 20:44:23,758 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1510260557]
[2022-11-02 20:44:23,758 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2022-11-02 20:44:23,758 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [772706394]
[2022-11-02 20:44:23,758 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [772706394] provided 0 perfect and 2 imperfect interpolant sequences
[2022-11-02 20:44:23,759 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences.
[2022-11-02 20:44:23,759 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 5] total 8
[2022-11-02 20:44:23,759 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1654675360]
[2022-11-02 20:44:23,759 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton
[2022-11-02 20:44:23,760 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-11-02 20:44:23,760 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-11-02 20:44:23,761 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-11-02 20:44:23,761 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56
[2022-11-02 20:44:23,761 INFO L87 Difference]: Start difference. First operand 21 states and 23 transitions. Second operand has 8 states, 8 states have (on average 2.875) internal successors, (23), 8 states have internal predecessors, (23), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2)
[2022-11-02 20:44:23,883 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-11-02 20:44:23,883 INFO L93 Difference]: Finished difference Result 52 states and 58 transitions.
[2022-11-02 20:44:23,884 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states.
[2022-11-02 20:44:23,884 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 2.875) internal successors, (23), 8 states have internal predecessors, (23), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 16
[2022-11-02 20:44:23,885 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-11-02 20:44:23,885 INFO L225 Difference]: With dead ends: 52
[2022-11-02 20:44:23,886 INFO L226 Difference]: Without dead ends: 45
[2022-11-02 20:44:23,886 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110
[2022-11-02 20:44:23,887 INFO L413 NwaCegarLoop]: 16 mSDtfsCounter, 32 mSDsluCounter, 50 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 66 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-11-02 20:44:23,888 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [32 Valid, 66 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-11-02 20:44:23,888 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states.
[2022-11-02 20:44:23,894 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 41.
[2022-11-02 20:44:23,895 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41 states, 29 states have (on average 1.2413793103448276) internal successors, (36), 32 states have internal predecessors, (36), 7 states have call successors, (7), 4 states have call predecessors, (7), 4 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4)
[2022-11-02 20:44:23,901 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 47 transitions.
[2022-11-02 20:44:23,901 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 47 transitions. Word has length 16
[2022-11-02 20:44:23,901 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-11-02 20:44:23,901 INFO L495 AbstractCegarLoop]: Abstraction has 41 states and 47 transitions.
[2022-11-02 20:44:23,901 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 2.875) internal successors, (23), 8 states have internal predecessors, (23), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2)
[2022-11-02 20:44:23,902 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 47 transitions.
[2022-11-02 20:44:23,902 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17
[2022-11-02 20:44:23,902 INFO L187 NwaCegarLoop]: Found error trace
[2022-11-02 20:44:23,902 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-11-02 20:44:23,942 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fb0d9e0-4f1c-4089-9ab1-2e2d3dba3da8/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0
[2022-11-02 20:44:24,118 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fb0d9e0-4f1c-4089-9ab1-2e2d3dba3da8/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2022-11-02 20:44:24,119 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2022-11-02 20:44:24,119 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-11-02 20:44:24,119 INFO L85 PathProgramCache]: Analyzing trace with hash -1540611354, now seen corresponding path program 1 times
[2022-11-02 20:44:24,120 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-11-02 20:44:24,120 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1528612624]
[2022-11-02 20:44:24,120 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-11-02 20:44:24,120 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-11-02 20:44:24,130 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2022-11-02 20:44:24,130 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1192284603]
[2022-11-02 20:44:24,131 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-11-02 20:44:24,131 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2022-11-02 20:44:24,131 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fb0d9e0-4f1c-4089-9ab1-2e2d3dba3da8/bin/uautomizer-Dbtcem3rbc/z3
[2022-11-02 20:44:24,132 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fb0d9e0-4f1c-4089-9ab1-2e2d3dba3da8/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2022-11-02 20:44:24,151 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fb0d9e0-4f1c-4089-9ab1-2e2d3dba3da8/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process
[2022-11-02 20:44:24,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-11-02 20:44:24,186 INFO L263 TraceCheckSpWp]: Trace formula consists of 70 conjuncts, 11 conjunts are in the unsatisfiable core
[2022-11-02 20:44:24,188 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2022-11-02 20:44:24,333 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 2 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-11-02 20:44:24,334 INFO L328 TraceCheckSpWp]: Computing backward predicates...
[2022-11-02 20:44:24,455 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked.
[2022-11-02 20:44:24,455 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-11-02 20:44:24,456 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1528612624]
[2022-11-02 20:44:24,456 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2022-11-02 20:44:24,456 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1192284603]
[2022-11-02 20:44:24,457 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1192284603] provided 1 perfect and 1 imperfect interpolant sequences
[2022-11-02 20:44:24,457 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2022-11-02 20:44:24,457 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [6] total 7
[2022-11-02 20:44:24,458 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [74172573]
[2022-11-02 20:44:24,458 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-11-02 20:44:24,459 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2022-11-02 20:44:24,459 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-11-02 20:44:24,460 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2022-11-02 20:44:24,461 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42
[2022-11-02 20:44:24,461 INFO L87 Difference]: Start difference. First operand 41 states and 47 transitions. Second operand has 5 states, 5 states have (on average 2.2) internal successors, (11), 4 states have internal predecessors, (11), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2022-11-02 20:44:24,516 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-11-02 20:44:24,516 INFO L93 Difference]: Finished difference Result 41 states and 47 transitions.
[2022-11-02 20:44:24,517 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states.
[2022-11-02 20:44:24,517 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.2) internal successors, (11), 4 states have internal predecessors, (11), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 16
[2022-11-02 20:44:24,518 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-11-02 20:44:24,518 INFO L225 Difference]: With dead ends: 41
[2022-11-02 20:44:24,518 INFO L226 Difference]: Without dead ends: 0
[2022-11-02 20:44:24,520 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 23 SyntacticMatches, 2 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56
[2022-11-02 20:44:24,521 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 7 mSDsluCounter, 14 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 23 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2022-11-02 20:44:24,523 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 23 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2022-11-02 20:44:24,525 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states.
[2022-11-02 20:44:24,525 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0.
[2022-11-02 20:44:24,525 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 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 20:44:24,525 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions.
[2022-11-02 20:44:24,525 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 16
[2022-11-02 20:44:24,526 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-11-02 20:44:24,526 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions.
[2022-11-02 20:44:24,526 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.2) internal successors, (11), 4 states have internal predecessors, (11), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2022-11-02 20:44:24,526 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions.
[2022-11-02 20:44:24,526 INFO L282 IsEmpty]: Finished isEmpty. No accepting run.
[2022-11-02 20:44:24,530 INFO L805 garLoopResultBuilder]: Registering result SAFE for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining)
[2022-11-02 20:44:24,571 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fb0d9e0-4f1c-4089-9ab1-2e2d3dba3da8/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0
[2022-11-02 20:44:24,758 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fb0d9e0-4f1c-4089-9ab1-2e2d3dba3da8/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2022-11-02 20:44:24,760 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions.
[2022-11-02 20:44:24,827 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed.
[2022-11-02 20:44:24,827 INFO L899 garLoopResultBuilder]: For program point L27-1(lines 27 36) no Hoare annotation was computed.
[2022-11-02 20:44:24,827 INFO L895 garLoopResultBuilder]: At program point L27-3(lines 27 36) the Hoare annotation is: (= (* 6 |ULTIMATE.start_main_~x~0#1|) (+ (* 3 (* |ULTIMATE.start_main_~y~0#1| |ULTIMATE.start_main_~y~0#1|)) (* (* |ULTIMATE.start_main_~y~0#1| |ULTIMATE.start_main_~y~0#1| |ULTIMATE.start_main_~y~0#1|) 2) |ULTIMATE.start_main_~y~0#1|))
[2022-11-02 20:44:24,828 INFO L895 garLoopResultBuilder]: At program point L27-4(lines 27 36) the Hoare annotation is: (= (* 6 |ULTIMATE.start_main_~x~0#1|) (+ (* 3 (* |ULTIMATE.start_main_~y~0#1| |ULTIMATE.start_main_~y~0#1|)) (* (* |ULTIMATE.start_main_~y~0#1| |ULTIMATE.start_main_~y~0#1| |ULTIMATE.start_main_~y~0#1|) 2) |ULTIMATE.start_main_~y~0#1|))
[2022-11-02 20:44:24,828 INFO L902 garLoopResultBuilder]: At program point L38(lines 18 39) the Hoare annotation is: true
[2022-11-02 20:44:24,828 INFO L899 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed.
[2022-11-02 20:44:24,828 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed.
[2022-11-02 20:44:24,829 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed.
[2022-11-02 20:44:24,829 INFO L895 garLoopResultBuilder]: At program point L28(line 28) the Hoare annotation is: (= (* 6 |ULTIMATE.start_main_~x~0#1|) (+ (* 3 (* |ULTIMATE.start_main_~y~0#1| |ULTIMATE.start_main_~y~0#1|)) (* (* |ULTIMATE.start_main_~y~0#1| |ULTIMATE.start_main_~y~0#1| |ULTIMATE.start_main_~y~0#1|) 2) |ULTIMATE.start_main_~y~0#1|))
[2022-11-02 20:44:24,829 INFO L899 garLoopResultBuilder]: For program point L28-1(lines 27 36) no Hoare annotation was computed.
[2022-11-02 20:44:24,829 INFO L899 garLoopResultBuilder]: For program point L37(line 37) no Hoare annotation was computed.
[2022-11-02 20:44:24,829 INFO L902 garLoopResultBuilder]: At program point __VERIFIER_assertENTRY(lines 9 15) the Hoare annotation is: true
[2022-11-02 20:44:24,830 INFO L899 garLoopResultBuilder]: For program point L11(lines 11 12) no Hoare annotation was computed.
[2022-11-02 20:44:24,830 INFO L899 garLoopResultBuilder]: For program point L10(lines 10 13) no Hoare annotation was computed.
[2022-11-02 20:44:24,830 INFO L899 garLoopResultBuilder]: For program point __VERIFIER_assertEXIT(lines 9 15) no Hoare annotation was computed.
[2022-11-02 20:44:24,830 INFO L899 garLoopResultBuilder]: For program point L10-2(lines 9 15) no Hoare annotation was computed.
[2022-11-02 20:44:24,831 INFO L899 garLoopResultBuilder]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 12) no Hoare annotation was computed.
[2022-11-02 20:44:24,834 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1]
[2022-11-02 20:44:24,837 INFO L178 ceAbstractionStarter]: Computing trace abstraction results
[2022-11-02 20:44:24,851 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.11 08:44:24 BoogieIcfgContainer
[2022-11-02 20:44:24,851 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2022-11-02 20:44:24,852 INFO L113 PluginConnector]: ------------------------Witness Printer----------------------------
[2022-11-02 20:44:24,852 INFO L271 PluginConnector]: Initializing Witness Printer...
[2022-11-02 20:44:24,852 INFO L275 PluginConnector]: Witness Printer initialized
[2022-11-02 20:44:24,853 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 08:44:21" (3/4) ...
[2022-11-02 20:44:24,859 INFO L137 WitnessPrinter]: Generating witness for correct program
[2022-11-02 20:44:24,867 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure __VERIFIER_assert
[2022-11-02 20:44:24,872 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges
[2022-11-02 20:44:24,873 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges
[2022-11-02 20:44:24,873 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges
[2022-11-02 20:44:24,873 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges
[2022-11-02 20:44:24,914 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fb0d9e0-4f1c-4089-9ab1-2e2d3dba3da8/bin/uautomizer-Dbtcem3rbc/witness.graphml
[2022-11-02 20:44:24,915 INFO L132 PluginConnector]: ------------------------ END Witness Printer----------------------------
[2022-11-02 20:44:24,915 INFO L158 Benchmark]: Toolchain (without parser) took 3935.71ms. Allocated memory was 94.4MB in the beginning and 119.5MB in the end (delta: 25.2MB). Free memory was 50.9MB in the beginning and 90.4MB in the end (delta: -39.5MB). There was no memory consumed. Max. memory is 16.1GB.
[2022-11-02 20:44:24,916 INFO L158 Benchmark]: CDTParser took 0.33ms. Allocated memory is still 94.4MB. Free memory is still 67.0MB. There was no memory consumed. Max. memory is 16.1GB.
[2022-11-02 20:44:24,916 INFO L158 Benchmark]: CACSL2BoogieTranslator took 334.79ms. Allocated memory is still 94.4MB. Free memory was 50.7MB in the beginning and 69.1MB in the end (delta: -18.4MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB.
[2022-11-02 20:44:24,917 INFO L158 Benchmark]: Boogie Procedure Inliner took 41.08ms. Allocated memory is still 94.4MB. Free memory was 69.1MB in the beginning and 67.7MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
[2022-11-02 20:44:24,917 INFO L158 Benchmark]: Boogie Preprocessor took 50.27ms. Allocated memory is still 94.4MB. Free memory was 67.7MB in the beginning and 66.6MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB.
[2022-11-02 20:44:24,917 INFO L158 Benchmark]: RCFGBuilder took 338.14ms. Allocated memory is still 94.4MB. Free memory was 66.6MB in the beginning and 56.5MB in the end (delta: 10.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB.
[2022-11-02 20:44:24,918 INFO L158 Benchmark]: TraceAbstraction took 3100.60ms. Allocated memory was 94.4MB in the beginning and 119.5MB in the end (delta: 25.2MB). Free memory was 55.8MB in the beginning and 92.5MB in the end (delta: -36.7MB). Peak memory consumption was 41.6MB. Max. memory is 16.1GB.
[2022-11-02 20:44:24,920 INFO L158 Benchmark]: Witness Printer took 62.85ms. Allocated memory is still 119.5MB. Free memory was 92.5MB in the beginning and 90.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
[2022-11-02 20:44:24,922 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] #######################
--- Results ---
* Results from de.uni_freiburg.informatik.ultimate.core:
- StatisticsResult: Toolchain Benchmarks
Benchmark results are:
* CDTParser took 0.33ms. Allocated memory is still 94.4MB. Free memory is still 67.0MB. There was no memory consumed. Max. memory is 16.1GB.
* CACSL2BoogieTranslator took 334.79ms. Allocated memory is still 94.4MB. Free memory was 50.7MB in the beginning and 69.1MB in the end (delta: -18.4MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB.
* Boogie Procedure Inliner took 41.08ms. Allocated memory is still 94.4MB. Free memory was 69.1MB in the beginning and 67.7MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
* Boogie Preprocessor took 50.27ms. Allocated memory is still 94.4MB. Free memory was 67.7MB in the beginning and 66.6MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB.
* RCFGBuilder took 338.14ms. Allocated memory is still 94.4MB. Free memory was 66.6MB in the beginning and 56.5MB in the end (delta: 10.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB.
* TraceAbstraction took 3100.60ms. Allocated memory was 94.4MB in the beginning and 119.5MB in the end (delta: 25.2MB). Free memory was 55.8MB in the beginning and 92.5MB in the end (delta: -36.7MB). Peak memory consumption was 41.6MB. Max. memory is 16.1GB.
* Witness Printer took 62.85ms. Allocated memory is still 119.5MB. Free memory was 92.5MB in the beginning and 90.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. 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
- PositiveResult [Line: 12]: call to reach_error is unreachable
For all program executions holds that call to reach_error is unreachable at this location
- StatisticsResult: Ultimate Automizer benchmark data
CFG has 2 procedures, 17 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 3.0s, OverallIterations: 5, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.1s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 46 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 45 mSDsluCounter, 184 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 115 mSDsCounter, 12 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 70 IncrementalHoareTripleChecker+Invalid, 82 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 12 mSolverCounterUnsat, 69 mSDtfsCounter, 70 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 85 GetRequests, 62 SyntacticMatches, 2 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=41occurred in iteration=4, InterpolantAutomatonStates: 26, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 5 MinimizatonAttempts, 4 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 5 LocationsWithAnnotation, 16 PreInvPairs, 30 NumberOfFragments, 53 HoareAnnotationTreeSize, 16 FomulaSimplifications, 203 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 5 FomulaSimplificationsInter, 56 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 62 NumberOfCodeBlocks, 62 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 80 ConstructedInterpolants, 0 QuantifiedInterpolants, 312 SizeOfPredicates, 3 NumberOfNonLiveVariables, 283 ConjunctsInSsa, 27 ConjunctsInUnsatCore, 7 InterpolantComputations, 4 PerfectInterpolantSequences, 11/18 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
- AllSpecificationsHoldResult: All specifications hold
1 specifications checked. All of them hold
- InvariantResult [Line: 27]: Loop Invariant
Derived loop invariant: 6 * x == 3 * (y * y) + y * y * y * 2 + y
- InvariantResult [Line: 18]: Loop Invariant
Derived loop invariant: 1
RESULT: Ultimate proved your program to be correct!
[2022-11-02 20:44:24,942 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fb0d9e0-4f1c-4089-9ab1-2e2d3dba3da8/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
Writing output log to file Ultimate.log
Result:
TRUE