./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/nla-digbench-scaling/geo3-ll_unwindbound10.c --full-output --architecture 32bit
--------------------------------------------------------------------------------
Checking for ERROR reachability
Using default analysis
Version c3fed411
Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/nla-digbench-scaling/geo3-ll_unwindbound10.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --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 2bd6e67b7fa2ee5ce263daa222a7fee92baa3ec009b3953f796d40da324e5524
--- Real Ultimate output ---
This is Ultimate 0.2.2-tmp.no-commuhash-c3fed41
[2021-12-16 00:25:36,535 INFO L177 SettingsManager]: Resetting all preferences to default values...
[2021-12-16 00:25:36,536 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values
[2021-12-16 00:25:36,590 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2021-12-16 00:25:36,590 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2021-12-16 00:25:36,594 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2021-12-16 00:25:36,595 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2021-12-16 00:25:36,598 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values
[2021-12-16 00:25:36,599 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values
[2021-12-16 00:25:36,605 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values
[2021-12-16 00:25:36,605 INFO L181 SettingsManager]: Resetting Sifa preferences to default values
[2021-12-16 00:25:36,606 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2021-12-16 00:25:36,607 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values
[2021-12-16 00:25:36,609 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values
[2021-12-16 00:25:36,610 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2021-12-16 00:25:36,612 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values
[2021-12-16 00:25:36,615 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2021-12-16 00:25:36,616 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2021-12-16 00:25:36,619 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2021-12-16 00:25:36,622 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values
[2021-12-16 00:25:36,626 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2021-12-16 00:25:36,627 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values
[2021-12-16 00:25:36,628 INFO L181 SettingsManager]: Resetting Referee preferences to default values
[2021-12-16 00:25:36,629 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values
[2021-12-16 00:25:36,631 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2021-12-16 00:25:36,631 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2021-12-16 00:25:36,633 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values
[2021-12-16 00:25:36,634 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values
[2021-12-16 00:25:36,634 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values
[2021-12-16 00:25:36,635 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring...
[2021-12-16 00:25:36,636 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values
[2021-12-16 00:25:36,636 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values
[2021-12-16 00:25:36,638 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values
[2021-12-16 00:25:36,639 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values
[2021-12-16 00:25:36,640 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2021-12-16 00:25:36,640 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values
[2021-12-16 00:25:36,641 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring...
[2021-12-16 00:25:36,641 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring...
[2021-12-16 00:25:36,641 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values
[2021-12-16 00:25:36,642 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values
[2021-12-16 00:25:36,642 INFO L188 SettingsManager]: Finished resetting all preferences to default values...
[2021-12-16 00:25:36,644 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf
[2021-12-16 00:25:36,681 INFO L113 SettingsManager]: Loading preferences was successful
[2021-12-16 00:25:36,681 INFO L115 SettingsManager]: Preferences different from defaults after loading the file:
[2021-12-16 00:25:36,682 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2021-12-16 00:25:36,682 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2021-12-16 00:25:36,683 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2021-12-16 00:25:36,683 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2021-12-16 00:25:36,683 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2021-12-16 00:25:36,684 INFO L138 SettingsManager]: * Create parallel compositions if possible=false
[2021-12-16 00:25:36,684 INFO L138 SettingsManager]: * Use SBE=true
[2021-12-16 00:25:36,684 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2021-12-16 00:25:36,685 INFO L138 SettingsManager]: * sizeof long=4
[2021-12-16 00:25:36,685 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true
[2021-12-16 00:25:36,685 INFO L138 SettingsManager]: * sizeof POINTER=4
[2021-12-16 00:25:36,685 INFO L138 SettingsManager]: * Check division by zero=IGNORE
[2021-12-16 00:25:36,686 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE
[2021-12-16 00:25:36,686 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE
[2021-12-16 00:25:36,686 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE
[2021-12-16 00:25:36,686 INFO L138 SettingsManager]: * sizeof long double=12
[2021-12-16 00:25:36,686 INFO L138 SettingsManager]: * Check if freed pointer was valid=false
[2021-12-16 00:25:36,686 INFO L138 SettingsManager]: * Use constant arrays=true
[2021-12-16 00:25:36,687 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE
[2021-12-16 00:25:36,687 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2021-12-16 00:25:36,687 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements
[2021-12-16 00:25:36,687 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode
[2021-12-16 00:25:36,687 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2021-12-16 00:25:36,688 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2021-12-16 00:25:36,688 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP
[2021-12-16 00:25:36,688 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2021-12-16 00:25:36,688 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL
[2021-12-16 00:25:36,689 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2021-12-16 00:25:36,690 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF
[2021-12-16 00:25:36,690 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET
[2021-12-16 00:25:36,690 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2021-12-16 00:25:36,690 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE
[2021-12-16 00:25:36,690 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:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) )
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2bd6e67b7fa2ee5ce263daa222a7fee92baa3ec009b3953f796d40da324e5524
[2021-12-16 00:25:36,906 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp
[2021-12-16 00:25:36,927 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2021-12-16 00:25:36,931 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2021-12-16 00:25:36,932 INFO L271 PluginConnector]: Initializing CDTParser...
[2021-12-16 00:25:36,932 INFO L275 PluginConnector]: CDTParser initialized
[2021-12-16 00:25:36,933 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/nla-digbench-scaling/geo3-ll_unwindbound10.c
[2021-12-16 00:25:36,990 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a88855ab2/83ec7fdddd184f2fa20a2e0328b07240/FLAG413d2d034
[2021-12-16 00:25:37,419 INFO L306 CDTParser]: Found 1 translation units.
[2021-12-16 00:25:37,419 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/nla-digbench-scaling/geo3-ll_unwindbound10.c
[2021-12-16 00:25:37,424 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a88855ab2/83ec7fdddd184f2fa20a2e0328b07240/FLAG413d2d034
[2021-12-16 00:25:37,436 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a88855ab2/83ec7fdddd184f2fa20a2e0328b07240
[2021-12-16 00:25:37,438 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2021-12-16 00:25:37,439 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements.
[2021-12-16 00:25:37,441 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2021-12-16 00:25:37,441 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator...
[2021-12-16 00:25:37,443 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized
[2021-12-16 00:25:37,444 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 12:25:37" (1/1) ...
[2021-12-16 00:25:37,445 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4523383b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 12:25:37, skipping insertion in model container
[2021-12-16 00:25:37,445 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 12:25:37" (1/1) ...
[2021-12-16 00:25:37,452 INFO L145 MainTranslator]: Starting translation in SV-COMP mode
[2021-12-16 00:25:37,467 INFO L178 MainTranslator]: Built tables and reachable declarations
[2021-12-16 00:25:37,579 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/nla-digbench-scaling/geo3-ll_unwindbound10.c[525,538]
[2021-12-16 00:25:37,599 INFO L209 PostProcessor]: Analyzing one entry point: main
[2021-12-16 00:25:37,606 INFO L203 MainTranslator]: Completed pre-run
[2021-12-16 00:25:37,619 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/nla-digbench-scaling/geo3-ll_unwindbound10.c[525,538]
[2021-12-16 00:25:37,634 INFO L209 PostProcessor]: Analyzing one entry point: main
[2021-12-16 00:25:37,648 INFO L208 MainTranslator]: Completed translation
[2021-12-16 00:25:37,649 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 12:25:37 WrapperNode
[2021-12-16 00:25:37,649 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2021-12-16 00:25:37,650 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2021-12-16 00:25:37,650 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner...
[2021-12-16 00:25:37,650 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized
[2021-12-16 00:25:37,655 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 12:25:37" (1/1) ...
[2021-12-16 00:25:37,662 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 12:25:37" (1/1) ...
[2021-12-16 00:25:37,676 INFO L137 Inliner]: procedures = 14, calls = 9, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 48
[2021-12-16 00:25:37,676 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2021-12-16 00:25:37,677 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2021-12-16 00:25:37,677 INFO L271 PluginConnector]: Initializing Boogie Preprocessor...
[2021-12-16 00:25:37,677 INFO L275 PluginConnector]: Boogie Preprocessor initialized
[2021-12-16 00:25:37,684 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 12:25:37" (1/1) ...
[2021-12-16 00:25:37,684 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 12:25:37" (1/1) ...
[2021-12-16 00:25:37,687 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 12:25:37" (1/1) ...
[2021-12-16 00:25:37,687 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 12:25:37" (1/1) ...
[2021-12-16 00:25:37,689 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 12:25:37" (1/1) ...
[2021-12-16 00:25:37,692 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 12:25:37" (1/1) ...
[2021-12-16 00:25:37,693 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 12:25:37" (1/1) ...
[2021-12-16 00:25:37,694 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2021-12-16 00:25:37,695 INFO L113 PluginConnector]: ------------------------RCFGBuilder----------------------------
[2021-12-16 00:25:37,695 INFO L271 PluginConnector]: Initializing RCFGBuilder...
[2021-12-16 00:25:37,695 INFO L275 PluginConnector]: RCFGBuilder initialized
[2021-12-16 00:25:37,696 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 12:25:37" (1/1) ...
[2021-12-16 00:25:37,710 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2021-12-16 00:25:37,719 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2021-12-16 00:25:37,732 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null)
[2021-12-16 00:25:37,758 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process
[2021-12-16 00:25:37,778 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2021-12-16 00:25:37,778 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int
[2021-12-16 00:25:37,778 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2021-12-16 00:25:37,779 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2021-12-16 00:25:37,779 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert
[2021-12-16 00:25:37,779 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert
[2021-12-16 00:25:37,835 INFO L236 CfgBuilder]: Building ICFG
[2021-12-16 00:25:37,837 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation
[2021-12-16 00:25:37,918 INFO L277 CfgBuilder]: Performing block encoding
[2021-12-16 00:25:37,922 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2021-12-16 00:25:37,923 INFO L301 CfgBuilder]: Removed 1 assume(true) statements.
[2021-12-16 00:25:37,924 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 12:25:37 BoogieIcfgContainer
[2021-12-16 00:25:37,924 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2021-12-16 00:25:37,925 INFO L113 PluginConnector]: ------------------------TraceAbstraction----------------------------
[2021-12-16 00:25:37,926 INFO L271 PluginConnector]: Initializing TraceAbstraction...
[2021-12-16 00:25:37,928 INFO L275 PluginConnector]: TraceAbstraction initialized
[2021-12-16 00:25:37,928 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.12 12:25:37" (1/3) ...
[2021-12-16 00:25:37,929 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@44d1a274 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 12:25:37, skipping insertion in model container
[2021-12-16 00:25:37,929 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 12:25:37" (2/3) ...
[2021-12-16 00:25:37,930 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@44d1a274 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 12:25:37, skipping insertion in model container
[2021-12-16 00:25:37,930 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 12:25:37" (3/3) ...
[2021-12-16 00:25:37,931 INFO L111 eAbstractionObserver]: Analyzing ICFG geo3-ll_unwindbound10.c
[2021-12-16 00:25:37,935 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2021-12-16 00:25:37,935 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2021-12-16 00:25:37,974 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2021-12-16 00:25:37,979 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR
[2021-12-16 00:25:37,980 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2021-12-16 00:25:37,992 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)
[2021-12-16 00:25:37,996 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8
[2021-12-16 00:25:37,996 INFO L506 BasicCegarLoop]: Found error trace
[2021-12-16 00:25:37,996 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1]
[2021-12-16 00:25:37,997 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2021-12-16 00:25:38,004 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-12-16 00:25:38,004 INFO L85 PathProgramCache]: Analyzing trace with hash 1819757606, now seen corresponding path program 1 times
[2021-12-16 00:25:38,011 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-12-16 00:25:38,011 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [916377021]
[2021-12-16 00:25:38,012 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-12-16 00:25:38,012 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2021-12-16 00:25:38,072 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2021-12-16 00:25:38,073 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1188642289]
[2021-12-16 00:25:38,073 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-12-16 00:25:38,073 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2021-12-16 00:25:38,074 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2021-12-16 00:25:38,075 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2021-12-16 00:25:38,076 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process
[2021-12-16 00:25:38,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-12-16 00:25:38,129 INFO L263 TraceCheckSpWp]: Trace formula consists of 51 conjuncts, 1 conjunts are in the unsatisfiable core
[2021-12-16 00:25:38,131 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2021-12-16 00:25:38,165 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-12-16 00:25:38,165 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2021-12-16 00:25:38,165 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-12-16 00:25:38,165 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [916377021]
[2021-12-16 00:25:38,165 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2021-12-16 00:25:38,166 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1188642289]
[2021-12-16 00:25:38,166 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1188642289] provided 1 perfect and 0 imperfect interpolant sequences
[2021-12-16 00:25:38,166 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2021-12-16 00:25:38,166 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2021-12-16 00:25:38,168 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [856257206]
[2021-12-16 00:25:38,168 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2021-12-16 00:25:38,171 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2021-12-16 00:25:38,171 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-12-16 00:25:38,193 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2021-12-16 00:25:38,196 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2021-12-16 00:25:38,197 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)
[2021-12-16 00:25:38,224 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-12-16 00:25:38,225 INFO L93 Difference]: Finished difference Result 32 states and 42 transitions.
[2021-12-16 00:25:38,225 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states.
[2021-12-16 00:25:38,226 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
[2021-12-16 00:25:38,227 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-12-16 00:25:38,232 INFO L225 Difference]: With dead ends: 32
[2021-12-16 00:25:38,232 INFO L226 Difference]: Without dead ends: 13
[2021-12-16 00:25:38,237 INFO L932 BasicCegarLoop]: 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
[2021-12-16 00:25:38,241 INFO L933 BasicCegarLoop]: 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
[2021-12-16 00:25:38,243 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2021-12-16 00:25:38,258 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states.
[2021-12-16 00:25:38,280 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 13.
[2021-12-16 00:25:38,281 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)
[2021-12-16 00:25:38,282 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 15 transitions.
[2021-12-16 00:25:38,283 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 15 transitions. Word has length 7
[2021-12-16 00:25:38,283 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-12-16 00:25:38,284 INFO L470 AbstractCegarLoop]: Abstraction has 13 states and 15 transitions.
[2021-12-16 00:25:38,284 INFO L471 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)
[2021-12-16 00:25:38,284 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 15 transitions.
[2021-12-16 00:25:38,285 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9
[2021-12-16 00:25:38,286 INFO L506 BasicCegarLoop]: Found error trace
[2021-12-16 00:25:38,286 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1]
[2021-12-16 00:25:38,307 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0
[2021-12-16 00:25:38,499 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0
[2021-12-16 00:25:38,500 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2021-12-16 00:25:38,501 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-12-16 00:25:38,501 INFO L85 PathProgramCache]: Analyzing trace with hash 178410715, now seen corresponding path program 1 times
[2021-12-16 00:25:38,501 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-12-16 00:25:38,501 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [325515]
[2021-12-16 00:25:38,501 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-12-16 00:25:38,501 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2021-12-16 00:25:38,509 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2021-12-16 00:25:38,509 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [246349514]
[2021-12-16 00:25:38,509 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-12-16 00:25:38,509 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2021-12-16 00:25:38,510 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2021-12-16 00:25:38,511 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2021-12-16 00:25:38,512 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process
[2021-12-16 00:25:38,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-12-16 00:25:38,572 INFO L263 TraceCheckSpWp]: Trace formula consists of 55 conjuncts, 3 conjunts are in the unsatisfiable core
[2021-12-16 00:25:38,573 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2021-12-16 00:25:38,639 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-12-16 00:25:38,639 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2021-12-16 00:25:38,639 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-12-16 00:25:38,640 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [325515]
[2021-12-16 00:25:38,640 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2021-12-16 00:25:38,640 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [246349514]
[2021-12-16 00:25:38,641 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [246349514] provided 1 perfect and 0 imperfect interpolant sequences
[2021-12-16 00:25:38,641 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2021-12-16 00:25:38,641 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2021-12-16 00:25:38,642 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [106476944]
[2021-12-16 00:25:38,642 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2021-12-16 00:25:38,643 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2021-12-16 00:25:38,643 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-12-16 00:25:38,644 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2021-12-16 00:25:38,644 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2021-12-16 00:25:38,644 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)
[2021-12-16 00:25:38,663 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-12-16 00:25:38,664 INFO L93 Difference]: Finished difference Result 22 states and 24 transitions.
[2021-12-16 00:25:38,664 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states.
[2021-12-16 00:25:38,664 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
[2021-12-16 00:25:38,665 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-12-16 00:25:38,666 INFO L225 Difference]: With dead ends: 22
[2021-12-16 00:25:38,666 INFO L226 Difference]: Without dead ends: 15
[2021-12-16 00:25:38,666 INFO L932 BasicCegarLoop]: 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
[2021-12-16 00:25:38,669 INFO L933 BasicCegarLoop]: 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
[2021-12-16 00:25:38,670 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 35 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2021-12-16 00:25:38,671 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states.
[2021-12-16 00:25:38,676 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15.
[2021-12-16 00:25:38,676 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)
[2021-12-16 00:25:38,677 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 17 transitions.
[2021-12-16 00:25:38,677 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 17 transitions. Word has length 8
[2021-12-16 00:25:38,677 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-12-16 00:25:38,678 INFO L470 AbstractCegarLoop]: Abstraction has 15 states and 17 transitions.
[2021-12-16 00:25:38,678 INFO L471 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)
[2021-12-16 00:25:38,678 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 17 transitions.
[2021-12-16 00:25:38,678 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9
[2021-12-16 00:25:38,679 INFO L506 BasicCegarLoop]: Found error trace
[2021-12-16 00:25:38,679 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1]
[2021-12-16 00:25:38,702 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0
[2021-12-16 00:25:38,895 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1
[2021-12-16 00:25:38,896 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2021-12-16 00:25:38,896 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-12-16 00:25:38,897 INFO L85 PathProgramCache]: Analyzing trace with hash 180198175, now seen corresponding path program 1 times
[2021-12-16 00:25:38,897 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-12-16 00:25:38,897 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [467165401]
[2021-12-16 00:25:38,897 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-12-16 00:25:38,897 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2021-12-16 00:25:38,904 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2021-12-16 00:25:38,904 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [220356927]
[2021-12-16 00:25:38,904 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-12-16 00:25:38,904 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2021-12-16 00:25:38,905 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2021-12-16 00:25:38,906 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2021-12-16 00:25:38,907 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process
[2021-12-16 00:25:38,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-12-16 00:25:38,949 INFO L263 TraceCheckSpWp]: Trace formula consists of 55 conjuncts, 9 conjunts are in the unsatisfiable core
[2021-12-16 00:25:38,950 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2021-12-16 00:25:39,033 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-12-16 00:25:39,034 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2021-12-16 00:25:39,034 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-12-16 00:25:39,034 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [467165401]
[2021-12-16 00:25:39,034 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2021-12-16 00:25:39,034 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [220356927]
[2021-12-16 00:25:39,034 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [220356927] provided 1 perfect and 0 imperfect interpolant sequences
[2021-12-16 00:25:39,034 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2021-12-16 00:25:39,035 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2021-12-16 00:25:39,035 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1424274630]
[2021-12-16 00:25:39,035 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2021-12-16 00:25:39,035 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2021-12-16 00:25:39,035 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-12-16 00:25:39,036 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2021-12-16 00:25:39,036 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2021-12-16 00:25:39,036 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)
[2021-12-16 00:25:39,063 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-12-16 00:25:39,063 INFO L93 Difference]: Finished difference Result 24 states and 27 transitions.
[2021-12-16 00:25:39,063 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states.
[2021-12-16 00:25:39,063 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
[2021-12-16 00:25:39,064 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-12-16 00:25:39,064 INFO L225 Difference]: With dead ends: 24
[2021-12-16 00:25:39,064 INFO L226 Difference]: Without dead ends: 21
[2021-12-16 00:25:39,065 INFO L932 BasicCegarLoop]: 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
[2021-12-16 00:25:39,066 INFO L933 BasicCegarLoop]: 12 mSDtfsCounter, 6 mSDsluCounter, 33 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 45 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2021-12-16 00:25:39,066 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7 Valid, 45 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2021-12-16 00:25:39,067 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states.
[2021-12-16 00:25:39,070 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 21.
[2021-12-16 00:25:39,070 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)
[2021-12-16 00:25:39,071 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 23 transitions.
[2021-12-16 00:25:39,071 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 23 transitions. Word has length 8
[2021-12-16 00:25:39,071 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-12-16 00:25:39,071 INFO L470 AbstractCegarLoop]: Abstraction has 21 states and 23 transitions.
[2021-12-16 00:25:39,071 INFO L471 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)
[2021-12-16 00:25:39,071 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 23 transitions.
[2021-12-16 00:25:39,072 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17
[2021-12-16 00:25:39,072 INFO L506 BasicCegarLoop]: Found error trace
[2021-12-16 00:25:39,072 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-12-16 00:25:39,090 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0
[2021-12-16 00:25:39,279 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2021-12-16 00:25:39,279 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2021-12-16 00:25:39,280 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-12-16 00:25:39,280 INFO L85 PathProgramCache]: Analyzing trace with hash -1542398814, now seen corresponding path program 1 times
[2021-12-16 00:25:39,280 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-12-16 00:25:39,280 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [760529099]
[2021-12-16 00:25:39,280 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-12-16 00:25:39,281 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2021-12-16 00:25:39,293 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2021-12-16 00:25:39,293 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1610019921]
[2021-12-16 00:25:39,294 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-12-16 00:25:39,294 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2021-12-16 00:25:39,294 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2021-12-16 00:25:39,295 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2021-12-16 00:25:39,299 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process
[2021-12-16 00:25:39,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-12-16 00:25:39,333 INFO L263 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 5 conjunts are in the unsatisfiable core
[2021-12-16 00:25:39,334 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2021-12-16 00:25:39,406 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-12-16 00:25:39,406 INFO L328 TraceCheckSpWp]: Computing backward predicates...
[2021-12-16 00:25:39,456 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-12-16 00:25:39,457 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-12-16 00:25:39,457 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [760529099]
[2021-12-16 00:25:39,457 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2021-12-16 00:25:39,457 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1610019921]
[2021-12-16 00:25:39,457 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1610019921] provided 0 perfect and 2 imperfect interpolant sequences
[2021-12-16 00:25:39,457 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences.
[2021-12-16 00:25:39,457 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 5] total 8
[2021-12-16 00:25:39,458 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1133085550]
[2021-12-16 00:25:39,458 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton
[2021-12-16 00:25:39,458 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2021-12-16 00:25:39,458 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-12-16 00:25:39,459 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2021-12-16 00:25:39,459 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56
[2021-12-16 00:25:39,459 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)
[2021-12-16 00:25:39,510 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-12-16 00:25:39,510 INFO L93 Difference]: Finished difference Result 52 states and 58 transitions.
[2021-12-16 00:25:39,510 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states.
[2021-12-16 00:25:39,510 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
[2021-12-16 00:25:39,511 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-12-16 00:25:39,511 INFO L225 Difference]: With dead ends: 52
[2021-12-16 00:25:39,511 INFO L226 Difference]: Without dead ends: 45
[2021-12-16 00:25:39,512 INFO L932 BasicCegarLoop]: 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
[2021-12-16 00:25:39,513 INFO L933 BasicCegarLoop]: 16 mSDtfsCounter, 32 mSDsluCounter, 50 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s 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, 0.0s IncrementalHoareTripleChecker+Time
[2021-12-16 00:25:39,513 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [32 Valid, 66 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2021-12-16 00:25:39,514 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states.
[2021-12-16 00:25:39,519 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 41.
[2021-12-16 00:25:39,519 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)
[2021-12-16 00:25:39,520 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 47 transitions.
[2021-12-16 00:25:39,520 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 47 transitions. Word has length 16
[2021-12-16 00:25:39,520 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-12-16 00:25:39,520 INFO L470 AbstractCegarLoop]: Abstraction has 41 states and 47 transitions.
[2021-12-16 00:25:39,520 INFO L471 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)
[2021-12-16 00:25:39,521 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 47 transitions.
[2021-12-16 00:25:39,521 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17
[2021-12-16 00:25:39,521 INFO L506 BasicCegarLoop]: Found error trace
[2021-12-16 00:25:39,521 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-12-16 00:25:39,546 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0
[2021-12-16 00:25:39,743 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2021-12-16 00:25:39,744 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2021-12-16 00:25:39,744 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-12-16 00:25:39,744 INFO L85 PathProgramCache]: Analyzing trace with hash -1540611354, now seen corresponding path program 1 times
[2021-12-16 00:25:39,744 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-12-16 00:25:39,745 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2005302307]
[2021-12-16 00:25:39,745 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-12-16 00:25:39,745 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2021-12-16 00:25:39,750 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2021-12-16 00:25:39,751 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [263481395]
[2021-12-16 00:25:39,751 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-12-16 00:25:39,751 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2021-12-16 00:25:39,751 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2021-12-16 00:25:39,752 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2021-12-16 00:25:39,753 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process
[2021-12-16 00:25:39,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-12-16 00:25:39,804 INFO L263 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 18 conjunts are in the unsatisfiable core
[2021-12-16 00:25:39,805 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2021-12-16 00:25:39,969 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-12-16 00:25:39,969 INFO L328 TraceCheckSpWp]: Computing backward predicates...
[2021-12-16 00:25:40,258 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-12-16 00:25:40,259 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-12-16 00:25:40,259 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2005302307]
[2021-12-16 00:25:40,259 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2021-12-16 00:25:40,259 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [263481395]
[2021-12-16 00:25:40,259 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [263481395] provided 0 perfect and 2 imperfect interpolant sequences
[2021-12-16 00:25:40,259 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences.
[2021-12-16 00:25:40,259 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 11
[2021-12-16 00:25:40,260 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1070491489]
[2021-12-16 00:25:40,260 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton
[2021-12-16 00:25:40,261 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states
[2021-12-16 00:25:40,261 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-12-16 00:25:40,261 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants.
[2021-12-16 00:25:40,262 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110
[2021-12-16 00:25:40,263 INFO L87 Difference]: Start difference. First operand 41 states and 47 transitions. Second operand has 11 states, 11 states have (on average 1.9090909090909092) internal successors, (21), 9 states have internal predecessors, (21), 4 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2)
[2021-12-16 00:25:40,472 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-12-16 00:25:40,472 INFO L93 Difference]: Finished difference Result 41 states and 47 transitions.
[2021-12-16 00:25:40,473 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states.
[2021-12-16 00:25:40,473 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 1.9090909090909092) internal successors, (21), 9 states have internal predecessors, (21), 4 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 16
[2021-12-16 00:25:40,474 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-12-16 00:25:40,474 INFO L225 Difference]: With dead ends: 41
[2021-12-16 00:25:40,474 INFO L226 Difference]: Without dead ends: 0
[2021-12-16 00:25:40,474 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 18 SyntacticMatches, 3 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=35, Invalid=97, Unknown=0, NotChecked=0, Total=132
[2021-12-16 00:25:40,475 INFO L933 BasicCegarLoop]: 12 mSDtfsCounter, 16 mSDsluCounter, 71 mSDsCounter, 0 mSdLazyCounter, 51 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 83 SdHoareTripleChecker+Invalid, 61 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 51 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time
[2021-12-16 00:25:40,475 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [18 Valid, 83 Invalid, 61 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 51 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time]
[2021-12-16 00:25:40,476 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states.
[2021-12-16 00:25:40,476 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0.
[2021-12-16 00:25:40,476 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)
[2021-12-16 00:25:40,476 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions.
[2021-12-16 00:25:40,476 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 16
[2021-12-16 00:25:40,476 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-12-16 00:25:40,476 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions.
[2021-12-16 00:25:40,477 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 1.9090909090909092) internal successors, (21), 9 states have internal predecessors, (21), 4 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2)
[2021-12-16 00:25:40,477 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions.
[2021-12-16 00:25:40,477 INFO L282 IsEmpty]: Finished isEmpty. No accepting run.
[2021-12-16 00:25:40,479 INFO L764 garLoopResultBuilder]: Registering result SAFE for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining)
[2021-12-16 00:25:40,497 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0
[2021-12-16 00:25:40,683 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2021-12-16 00:25:40,685 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions.
[2021-12-16 00:25:40,868 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed.
[2021-12-16 00:25:40,868 INFO L858 garLoopResultBuilder]: For program point L44(line 44) no Hoare annotation was computed.
[2021-12-16 00:25:40,868 INFO L858 garLoopResultBuilder]: For program point L34-1(lines 34 43) no Hoare annotation was computed.
[2021-12-16 00:25:40,868 INFO L858 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed.
[2021-12-16 00:25:40,868 INFO L854 garLoopResultBuilder]: At program point L34-3(lines 34 43) the Hoare annotation is: (= (+ |ULTIMATE.start_main_~x~0#1| (* |ULTIMATE.start_main_~y~0#1| |ULTIMATE.start_main_~az~0#1|)) (+ |ULTIMATE.start_main_~a~0#1| (* |ULTIMATE.start_main_~x~0#1| |ULTIMATE.start_main_~z~0#1|)))
[2021-12-16 00:25:40,868 INFO L854 garLoopResultBuilder]: At program point L34-4(lines 34 43) the Hoare annotation is: (= (+ |ULTIMATE.start_main_~x~0#1| (* |ULTIMATE.start_main_~y~0#1| |ULTIMATE.start_main_~az~0#1|)) (+ |ULTIMATE.start_main_~a~0#1| (* |ULTIMATE.start_main_~x~0#1| |ULTIMATE.start_main_~z~0#1|)))
[2021-12-16 00:25:40,869 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed.
[2021-12-16 00:25:40,869 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed.
[2021-12-16 00:25:40,869 INFO L861 garLoopResultBuilder]: At program point L45(lines 22 46) the Hoare annotation is: true
[2021-12-16 00:25:40,869 INFO L854 garLoopResultBuilder]: At program point L35(line 35) the Hoare annotation is: (= (+ |ULTIMATE.start_main_~x~0#1| (* |ULTIMATE.start_main_~y~0#1| |ULTIMATE.start_main_~az~0#1|)) (+ |ULTIMATE.start_main_~a~0#1| (* |ULTIMATE.start_main_~x~0#1| |ULTIMATE.start_main_~z~0#1|)))
[2021-12-16 00:25:40,869 INFO L858 garLoopResultBuilder]: For program point L35-1(lines 34 43) no Hoare annotation was computed.
[2021-12-16 00:25:40,869 INFO L858 garLoopResultBuilder]: For program point L16(lines 16 17) no Hoare annotation was computed.
[2021-12-16 00:25:40,869 INFO L858 garLoopResultBuilder]: For program point L15(lines 15 18) no Hoare annotation was computed.
[2021-12-16 00:25:40,869 INFO L861 garLoopResultBuilder]: At program point __VERIFIER_assertENTRY(lines 14 20) the Hoare annotation is: true
[2021-12-16 00:25:40,869 INFO L858 garLoopResultBuilder]: For program point L15-2(lines 14 20) no Hoare annotation was computed.
[2021-12-16 00:25:40,869 INFO L858 garLoopResultBuilder]: For program point __VERIFIER_assertEXIT(lines 14 20) no Hoare annotation was computed.
[2021-12-16 00:25:40,869 INFO L858 garLoopResultBuilder]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 17) no Hoare annotation was computed.
[2021-12-16 00:25:40,872 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1]
[2021-12-16 00:25:40,873 INFO L179 ceAbstractionStarter]: Computing trace abstraction results
[2021-12-16 00:25:40,884 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.12 12:25:40 BoogieIcfgContainer
[2021-12-16 00:25:40,884 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2021-12-16 00:25:40,885 INFO L113 PluginConnector]: ------------------------Witness Printer----------------------------
[2021-12-16 00:25:40,885 INFO L271 PluginConnector]: Initializing Witness Printer...
[2021-12-16 00:25:40,885 INFO L275 PluginConnector]: Witness Printer initialized
[2021-12-16 00:25:40,885 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 12:25:37" (3/4) ...
[2021-12-16 00:25:40,887 INFO L137 WitnessPrinter]: Generating witness for correct program
[2021-12-16 00:25:40,892 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure __VERIFIER_assert
[2021-12-16 00:25:40,894 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges
[2021-12-16 00:25:40,894 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges
[2021-12-16 00:25:40,895 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges
[2021-12-16 00:25:40,895 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges
[2021-12-16 00:25:40,917 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml
[2021-12-16 00:25:40,918 INFO L132 PluginConnector]: ------------------------ END Witness Printer----------------------------
[2021-12-16 00:25:40,918 INFO L158 Benchmark]: Toolchain (without parser) took 3478.96ms. Allocated memory was 96.5MB in the beginning and 119.5MB in the end (delta: 23.1MB). Free memory was 67.8MB in the beginning and 92.0MB in the end (delta: -24.2MB). There was no memory consumed. Max. memory is 16.1GB.
[2021-12-16 00:25:40,918 INFO L158 Benchmark]: CDTParser took 0.21ms. Allocated memory is still 96.5MB. Free memory was 54.6MB in the beginning and 54.5MB in the end (delta: 43.6kB). There was no memory consumed. Max. memory is 16.1GB.
[2021-12-16 00:25:40,919 INFO L158 Benchmark]: CACSL2BoogieTranslator took 208.61ms. Allocated memory was 96.5MB in the beginning and 119.5MB in the end (delta: 23.1MB). Free memory was 67.8MB in the beginning and 95.5MB in the end (delta: -27.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB.
[2021-12-16 00:25:40,919 INFO L158 Benchmark]: Boogie Procedure Inliner took 26.82ms. Allocated memory is still 119.5MB. Free memory was 95.5MB in the beginning and 93.8MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
[2021-12-16 00:25:40,919 INFO L158 Benchmark]: Boogie Preprocessor took 17.21ms. Allocated memory is still 119.5MB. Free memory was 93.8MB in the beginning and 92.9MB in the end (delta: 883.8kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
[2021-12-16 00:25:40,920 INFO L158 Benchmark]: RCFGBuilder took 229.33ms. Allocated memory is still 119.5MB. Free memory was 92.9MB in the beginning and 83.4MB in the end (delta: 9.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB.
[2021-12-16 00:25:40,920 INFO L158 Benchmark]: TraceAbstraction took 2958.64ms. Allocated memory is still 119.5MB. Free memory was 82.9MB in the beginning and 94.1MB in the end (delta: -11.2MB). Peak memory consumption was 48.8MB. Max. memory is 16.1GB.
[2021-12-16 00:25:40,920 INFO L158 Benchmark]: Witness Printer took 33.03ms. Allocated memory is still 119.5MB. Free memory was 94.1MB in the beginning and 92.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
[2021-12-16 00:25:40,922 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] #######################
--- Results ---
* Results from de.uni_freiburg.informatik.ultimate.core:
- StatisticsResult: Toolchain Benchmarks
Benchmark results are:
* CDTParser took 0.21ms. Allocated memory is still 96.5MB. Free memory was 54.6MB in the beginning and 54.5MB in the end (delta: 43.6kB). There was no memory consumed. Max. memory is 16.1GB.
* CACSL2BoogieTranslator took 208.61ms. Allocated memory was 96.5MB in the beginning and 119.5MB in the end (delta: 23.1MB). Free memory was 67.8MB in the beginning and 95.5MB in the end (delta: -27.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB.
* Boogie Procedure Inliner took 26.82ms. Allocated memory is still 119.5MB. Free memory was 95.5MB in the beginning and 93.8MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
* Boogie Preprocessor took 17.21ms. Allocated memory is still 119.5MB. Free memory was 93.8MB in the beginning and 92.9MB in the end (delta: 883.8kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
* RCFGBuilder took 229.33ms. Allocated memory is still 119.5MB. Free memory was 92.9MB in the beginning and 83.4MB in the end (delta: 9.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB.
* TraceAbstraction took 2958.64ms. Allocated memory is still 119.5MB. Free memory was 82.9MB in the beginning and 94.1MB in the end (delta: -11.2MB). Peak memory consumption was 48.8MB. Max. memory is 16.1GB.
* Witness Printer took 33.03ms. Allocated memory is still 119.5MB. Free memory was 94.1MB in the beginning and 92.0MB 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: 17]: 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: 2.9s, OverallIterations: 5, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.2s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 57 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 54 mSDsluCounter, 248 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 176 mSDsCounter, 21 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 103 IncrementalHoareTripleChecker+Invalid, 124 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 21 mSolverCounterUnsat, 72 mSDtfsCounter, 103 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 85 GetRequests, 57 SyntacticMatches, 3 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=41occurred in iteration=4, InterpolantAutomatonStates: 28, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 5 MinimizatonAttempts, 4 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 5 LocationsWithAnnotation, 16 PreInvPairs, 30 NumberOfFragments, 35 HoareAnnotationTreeSize, 16 FomulaSimplifications, 60 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 5 FomulaSimplificationsInter, 150 FormulaSimplificationTreeSizeReductionInter, 0.2s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.8s InterpolantComputationTime, 55 NumberOfCodeBlocks, 55 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 80 ConstructedInterpolants, 0 QuantifiedInterpolants, 323 SizeOfPredicates, 4 NumberOfNonLiveVariables, 313 ConjunctsInSsa, 36 ConjunctsInUnsatCore, 7 InterpolantComputations, 3 PerfectInterpolantSequences, 9/18 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: 22]: Loop Invariant
Derived loop invariant: 1
- InvariantResult [Line: 34]: Loop Invariant
Derived loop invariant: x + y * az == a + x * z
RESULT: Ultimate proved your program to be correct!
[2021-12-16 00:25:40,939 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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