./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/geo1-ll_unwindbound20.c --full-output --architecture 32bit
--------------------------------------------------------------------------------
Checking for ERROR reachability
Using default analysis
Version 63182f13
Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b5d195b-4013-4fda-b28e-6df492beaa4e/bin/uautomizer-YU5uOKAj3y/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b5d195b-4013-4fda-b28e-6df492beaa4e/bin/uautomizer-YU5uOKAj3y/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b5d195b-4013-4fda-b28e-6df492beaa4e/bin/uautomizer-YU5uOKAj3y/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b5d195b-4013-4fda-b28e-6df492beaa4e/bin/uautomizer-YU5uOKAj3y/config/AutomizerReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/geo1-ll_unwindbound20.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b5d195b-4013-4fda-b28e-6df492beaa4e/bin/uautomizer-YU5uOKAj3y/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b5d195b-4013-4fda-b28e-6df492beaa4e/bin/uautomizer-YU5uOKAj3y --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) )
--witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 358d950fcb60363ca711e5ee684e998bf5a6b6b14c5043f9c788a7a76c08fd00
--- Real Ultimate output ---
This is Ultimate 0.2.1-dev-63182f1
[2021-11-13 17:32:29,066 INFO L177 SettingsManager]: Resetting all preferences to default values...
[2021-11-13 17:32:29,069 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values
[2021-11-13 17:32:29,111 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2021-11-13 17:32:29,112 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2021-11-13 17:32:29,118 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2021-11-13 17:32:29,121 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2021-11-13 17:32:29,126 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values
[2021-11-13 17:32:29,129 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values
[2021-11-13 17:32:29,134 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values
[2021-11-13 17:32:29,135 INFO L181 SettingsManager]: Resetting Sifa preferences to default values
[2021-11-13 17:32:29,137 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2021-11-13 17:32:29,138 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values
[2021-11-13 17:32:29,140 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values
[2021-11-13 17:32:29,143 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2021-11-13 17:32:29,145 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values
[2021-11-13 17:32:29,147 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2021-11-13 17:32:29,148 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2021-11-13 17:32:29,152 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2021-11-13 17:32:29,161 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values
[2021-11-13 17:32:29,163 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2021-11-13 17:32:29,164 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values
[2021-11-13 17:32:29,168 INFO L181 SettingsManager]: Resetting Referee preferences to default values
[2021-11-13 17:32:29,169 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values
[2021-11-13 17:32:29,173 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2021-11-13 17:32:29,174 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2021-11-13 17:32:29,174 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values
[2021-11-13 17:32:29,177 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values
[2021-11-13 17:32:29,177 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values
[2021-11-13 17:32:29,179 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring...
[2021-11-13 17:32:29,180 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values
[2021-11-13 17:32:29,181 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values
[2021-11-13 17:32:29,183 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values
[2021-11-13 17:32:29,185 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values
[2021-11-13 17:32:29,186 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2021-11-13 17:32:29,186 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values
[2021-11-13 17:32:29,187 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring...
[2021-11-13 17:32:29,188 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring...
[2021-11-13 17:32:29,188 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values
[2021-11-13 17:32:29,189 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values
[2021-11-13 17:32:29,190 INFO L188 SettingsManager]: Finished resetting all preferences to default values...
[2021-11-13 17:32:29,190 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b5d195b-4013-4fda-b28e-6df492beaa4e/bin/uautomizer-YU5uOKAj3y/config/svcomp-Reach-32bit-Automizer_Default.epf
[2021-11-13 17:32:29,239 INFO L113 SettingsManager]: Loading preferences was successful
[2021-11-13 17:32:29,240 INFO L115 SettingsManager]: Preferences different from defaults after loading the file:
[2021-11-13 17:32:29,241 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2021-11-13 17:32:29,241 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2021-11-13 17:32:29,242 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2021-11-13 17:32:29,242 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2021-11-13 17:32:29,244 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2021-11-13 17:32:29,244 INFO L138 SettingsManager]: * Create parallel compositions if possible=false
[2021-11-13 17:32:29,244 INFO L138 SettingsManager]: * Use SBE=true
[2021-11-13 17:32:29,244 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2021-11-13 17:32:29,246 INFO L138 SettingsManager]: * sizeof long=4
[2021-11-13 17:32:29,246 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true
[2021-11-13 17:32:29,246 INFO L138 SettingsManager]: * sizeof POINTER=4
[2021-11-13 17:32:29,246 INFO L138 SettingsManager]: * Check division by zero=IGNORE
[2021-11-13 17:32:29,247 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE
[2021-11-13 17:32:29,247 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE
[2021-11-13 17:32:29,247 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE
[2021-11-13 17:32:29,247 INFO L138 SettingsManager]: * sizeof long double=12
[2021-11-13 17:32:29,247 INFO L138 SettingsManager]: * Check if freed pointer was valid=false
[2021-11-13 17:32:29,248 INFO L138 SettingsManager]: * Use constant arrays=true
[2021-11-13 17:32:29,248 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE
[2021-11-13 17:32:29,248 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2021-11-13 17:32:29,248 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements
[2021-11-13 17:32:29,249 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode
[2021-11-13 17:32:29,249 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2021-11-13 17:32:29,249 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2021-11-13 17:32:29,249 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP
[2021-11-13 17:32:29,250 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2021-11-13 17:32:29,250 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL
[2021-11-13 17:32:29,251 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2021-11-13 17:32:29,252 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF
[2021-11-13 17:32:29,252 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET
[2021-11-13 17:32:29,252 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2021-11-13 17:32:29,252 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE
[2021-11-13 17:32:29,253 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_7b5d195b-4013-4fda-b28e-6df492beaa4e/bin/uautomizer-YU5uOKAj3y/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int)
WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b5d195b-4013-4fda-b28e-6df492beaa4e/bin/uautomizer-YU5uOKAj3y
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) )
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 358d950fcb60363ca711e5ee684e998bf5a6b6b14c5043f9c788a7a76c08fd00
[2021-11-13 17:32:29,561 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp
[2021-11-13 17:32:29,587 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2021-11-13 17:32:29,589 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2021-11-13 17:32:29,591 INFO L271 PluginConnector]: Initializing CDTParser...
[2021-11-13 17:32:29,591 INFO L275 PluginConnector]: CDTParser initialized
[2021-11-13 17:32:29,593 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b5d195b-4013-4fda-b28e-6df492beaa4e/bin/uautomizer-YU5uOKAj3y/../../sv-benchmarks/c/nla-digbench-scaling/geo1-ll_unwindbound20.c
[2021-11-13 17:32:29,674 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b5d195b-4013-4fda-b28e-6df492beaa4e/bin/uautomizer-YU5uOKAj3y/data/680769c9c/498d399bf1fa4bb1a40ade716112e9a4/FLAG27a03aa59
[2021-11-13 17:32:30,170 INFO L306 CDTParser]: Found 1 translation units.
[2021-11-13 17:32:30,171 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b5d195b-4013-4fda-b28e-6df492beaa4e/sv-benchmarks/c/nla-digbench-scaling/geo1-ll_unwindbound20.c
[2021-11-13 17:32:30,183 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b5d195b-4013-4fda-b28e-6df492beaa4e/bin/uautomizer-YU5uOKAj3y/data/680769c9c/498d399bf1fa4bb1a40ade716112e9a4/FLAG27a03aa59
[2021-11-13 17:32:30,528 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b5d195b-4013-4fda-b28e-6df492beaa4e/bin/uautomizer-YU5uOKAj3y/data/680769c9c/498d399bf1fa4bb1a40ade716112e9a4
[2021-11-13 17:32:30,530 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2021-11-13 17:32:30,533 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements.
[2021-11-13 17:32:30,537 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2021-11-13 17:32:30,537 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator...
[2021-11-13 17:32:30,541 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized
[2021-11-13 17:32:30,542 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 05:32:30" (1/1) ...
[2021-11-13 17:32:30,544 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3e5e30c4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:32:30, skipping insertion in model container
[2021-11-13 17:32:30,544 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 05:32:30" (1/1) ...
[2021-11-13 17:32:30,551 INFO L145 MainTranslator]: Starting translation in SV-COMP mode
[2021-11-13 17:32:30,567 INFO L178 MainTranslator]: Built tables and reachable declarations
[2021-11-13 17:32:30,790 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b5d195b-4013-4fda-b28e-6df492beaa4e/sv-benchmarks/c/nla-digbench-scaling/geo1-ll_unwindbound20.c[546,559]
[2021-11-13 17:32:30,803 INFO L206 PostProcessor]: Analyzing one entry point: main
[2021-11-13 17:32:30,811 INFO L203 MainTranslator]: Completed pre-run
[2021-11-13 17:32:30,823 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b5d195b-4013-4fda-b28e-6df492beaa4e/sv-benchmarks/c/nla-digbench-scaling/geo1-ll_unwindbound20.c[546,559]
[2021-11-13 17:32:30,829 INFO L206 PostProcessor]: Analyzing one entry point: main
[2021-11-13 17:32:30,842 INFO L208 MainTranslator]: Completed translation
[2021-11-13 17:32:30,842 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:32:30 WrapperNode
[2021-11-13 17:32:30,843 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2021-11-13 17:32:30,844 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2021-11-13 17:32:30,844 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner...
[2021-11-13 17:32:30,844 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized
[2021-11-13 17:32:30,851 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:32:30" (1/1) ...
[2021-11-13 17:32:30,858 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:32:30" (1/1) ...
[2021-11-13 17:32:30,875 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2021-11-13 17:32:30,876 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2021-11-13 17:32:30,876 INFO L271 PluginConnector]: Initializing Boogie Preprocessor...
[2021-11-13 17:32:30,876 INFO L275 PluginConnector]: Boogie Preprocessor initialized
[2021-11-13 17:32:30,885 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:32:30" (1/1) ...
[2021-11-13 17:32:30,885 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:32:30" (1/1) ...
[2021-11-13 17:32:30,886 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:32:30" (1/1) ...
[2021-11-13 17:32:30,887 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:32:30" (1/1) ...
[2021-11-13 17:32:30,890 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:32:30" (1/1) ...
[2021-11-13 17:32:30,894 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:32:30" (1/1) ...
[2021-11-13 17:32:30,895 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:32:30" (1/1) ...
[2021-11-13 17:32:30,897 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2021-11-13 17:32:30,898 INFO L113 PluginConnector]: ------------------------RCFGBuilder----------------------------
[2021-11-13 17:32:30,898 INFO L271 PluginConnector]: Initializing RCFGBuilder...
[2021-11-13 17:32:30,898 INFO L275 PluginConnector]: RCFGBuilder initialized
[2021-11-13 17:32:30,899 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:32:30" (1/1) ...
[2021-11-13 17:32:30,909 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2021-11-13 17:32:30,920 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b5d195b-4013-4fda-b28e-6df492beaa4e/bin/uautomizer-YU5uOKAj3y/z3
[2021-11-13 17:32:30,947 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b5d195b-4013-4fda-b28e-6df492beaa4e/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null)
[2021-11-13 17:32:30,977 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b5d195b-4013-4fda-b28e-6df492beaa4e/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process
[2021-11-13 17:32:30,996 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not
[2021-11-13 17:32:30,996 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not
[2021-11-13 17:32:30,996 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int
[2021-11-13 17:32:30,997 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack
[2021-11-13 17:32:30,997 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2021-11-13 17:32:30,997 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2021-11-13 17:32:30,997 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert
[2021-11-13 17:32:30,997 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert
[2021-11-13 17:32:31,277 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2021-11-13 17:32:31,277 INFO L299 CfgBuilder]: Removed 1 assume(true) statements.
[2021-11-13 17:32:31,279 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 05:32:31 BoogieIcfgContainer
[2021-11-13 17:32:31,279 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2021-11-13 17:32:31,281 INFO L113 PluginConnector]: ------------------------TraceAbstraction----------------------------
[2021-11-13 17:32:31,297 INFO L271 PluginConnector]: Initializing TraceAbstraction...
[2021-11-13 17:32:31,300 INFO L275 PluginConnector]: TraceAbstraction initialized
[2021-11-13 17:32:31,300 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.11 05:32:30" (1/3) ...
[2021-11-13 17:32:31,301 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2781cd2b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 05:32:31, skipping insertion in model container
[2021-11-13 17:32:31,301 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:32:30" (2/3) ...
[2021-11-13 17:32:31,302 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2781cd2b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 05:32:31, skipping insertion in model container
[2021-11-13 17:32:31,302 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 05:32:31" (3/3) ...
[2021-11-13 17:32:31,303 INFO L111 eAbstractionObserver]: Analyzing ICFG geo1-ll_unwindbound20.c
[2021-11-13 17:32:31,309 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2021-11-13 17:32:31,309 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2021-11-13 17:32:31,357 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2021-11-13 17:32:31,364 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR
[2021-11-13 17:32:31,364 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2021-11-13 17:32:31,381 INFO L276 IsEmpty]: Start isEmpty. Operand has 25 states, 17 states have (on average 1.3529411764705883) internal successors, (23), 18 states have internal predecessors, (23), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4)
[2021-11-13 17:32:31,387 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20
[2021-11-13 17:32:31,387 INFO L506 BasicCegarLoop]: Found error trace
[2021-11-13 17:32:31,388 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-11-13 17:32:31,389 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2021-11-13 17:32:31,410 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-11-13 17:32:31,410 INFO L85 PathProgramCache]: Analyzing trace with hash 995043441, now seen corresponding path program 1 times
[2021-11-13 17:32:31,419 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-11-13 17:32:31,420 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [21989719]
[2021-11-13 17:32:31,429 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-11-13 17:32:31,430 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2021-11-13 17:32:31,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-11-13 17:32:31,675 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2
[2021-11-13 17:32:31,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-11-13 17:32:31,684 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7
[2021-11-13 17:32:31,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-11-13 17:32:31,693 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked.
[2021-11-13 17:32:31,694 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-11-13 17:32:31,695 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [21989719]
[2021-11-13 17:32:31,695 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [21989719] provided 1 perfect and 0 imperfect interpolant sequences
[2021-11-13 17:32:31,696 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2021-11-13 17:32:31,696 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2021-11-13 17:32:31,698 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1750222402]
[2021-11-13 17:32:31,699 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2021-11-13 17:32:31,704 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2021-11-13 17:32:31,704 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-11-13 17:32:31,743 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2021-11-13 17:32:31,746 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2021-11-13 17:32:31,749 INFO L87 Difference]: Start difference. First operand has 25 states, 17 states have (on average 1.3529411764705883) internal successors, (23), 18 states have internal predecessors, (23), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) Second operand has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2)
[2021-11-13 17:32:31,775 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-11-13 17:32:31,775 INFO L93 Difference]: Finished difference Result 47 states and 62 transitions.
[2021-11-13 17:32:31,777 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states.
[2021-11-13 17:32:31,779 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) Word has length 19
[2021-11-13 17:32:31,779 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-11-13 17:32:31,785 INFO L225 Difference]: With dead ends: 47
[2021-11-13 17:32:31,785 INFO L226 Difference]: Without dead ends: 21
[2021-11-13 17:32:31,787 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2021-11-13 17:32:31,791 INFO L933 BasicCegarLoop]: 28 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.00ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 28 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.50ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.00ms IncrementalHoareTripleChecker+Time
[2021-11-13 17:32:31,792 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 1.50ms Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.00ms Time]
[2021-11-13 17:32:31,811 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states.
[2021-11-13 17:32:31,827 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 21.
[2021-11-13 17:32:31,829 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21 states, 14 states have (on average 1.2142857142857142) internal successors, (17), 15 states have internal predecessors, (17), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3)
[2021-11-13 17:32:31,830 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 24 transitions.
[2021-11-13 17:32:31,831 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 24 transitions. Word has length 19
[2021-11-13 17:32:31,832 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-11-13 17:32:31,832 INFO L470 AbstractCegarLoop]: Abstraction has 21 states and 24 transitions.
[2021-11-13 17:32:31,832 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2)
[2021-11-13 17:32:31,833 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 24 transitions.
[2021-11-13 17:32:31,834 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20
[2021-11-13 17:32:31,835 INFO L506 BasicCegarLoop]: Found error trace
[2021-11-13 17:32:31,835 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-11-13 17:32:31,835 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2021-11-13 17:32:31,836 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2021-11-13 17:32:31,837 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-11-13 17:32:31,837 INFO L85 PathProgramCache]: Analyzing trace with hash -1059321002, now seen corresponding path program 1 times
[2021-11-13 17:32:31,837 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-11-13 17:32:31,838 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1639820280]
[2021-11-13 17:32:31,838 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-11-13 17:32:31,838 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2021-11-13 17:32:31,856 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2021-11-13 17:32:31,857 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [588086989]
[2021-11-13 17:32:31,857 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-11-13 17:32:31,857 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2021-11-13 17:32:31,858 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b5d195b-4013-4fda-b28e-6df492beaa4e/bin/uautomizer-YU5uOKAj3y/z3
[2021-11-13 17:32:31,860 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b5d195b-4013-4fda-b28e-6df492beaa4e/bin/uautomizer-YU5uOKAj3y/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2021-11-13 17:32:31,881 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b5d195b-4013-4fda-b28e-6df492beaa4e/bin/uautomizer-YU5uOKAj3y/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process
[2021-11-13 17:32:31,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-11-13 17:32:31,947 INFO L263 TraceCheckSpWp]: Trace formula consists of 75 conjuncts, 7 conjunts are in the unsatisfiable core
[2021-11-13 17:32:31,953 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2021-11-13 17:32:32,145 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked.
[2021-11-13 17:32:32,146 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2021-11-13 17:32:32,146 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-11-13 17:32:32,147 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1639820280]
[2021-11-13 17:32:32,147 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown
[2021-11-13 17:32:32,148 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [588086989]
[2021-11-13 17:32:32,149 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [588086989] provided 1 perfect and 0 imperfect interpolant sequences
[2021-11-13 17:32:32,150 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2021-11-13 17:32:32,150 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2021-11-13 17:32:32,152 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [344964311]
[2021-11-13 17:32:32,154 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2021-11-13 17:32:32,155 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2021-11-13 17:32:32,155 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-11-13 17:32:32,157 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2021-11-13 17:32:32,157 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2021-11-13 17:32:32,158 INFO L87 Difference]: Start difference. First operand 21 states and 24 transitions. Second operand has 5 states, 5 states have (on average 2.2) internal successors, (11), 4 states have internal predecessors, (11), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2)
[2021-11-13 17:32:32,232 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-11-13 17:32:32,232 INFO L93 Difference]: Finished difference Result 32 states and 37 transitions.
[2021-11-13 17:32:32,233 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states.
[2021-11-13 17:32:32,233 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), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 19
[2021-11-13 17:32:32,234 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-11-13 17:32:32,237 INFO L225 Difference]: With dead ends: 32
[2021-11-13 17:32:32,240 INFO L226 Difference]: Without dead ends: 30
[2021-11-13 17:32:32,241 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30
[2021-11-13 17:32:32,243 INFO L933 BasicCegarLoop]: 20 mSDtfsCounter, 7 mSDsluCounter, 56 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 31.71ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 76 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 5.11ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 41.54ms IncrementalHoareTripleChecker+Time
[2021-11-13 17:32:32,244 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [8 Valid, 76 Invalid, 22 Unknown, 0 Unchecked, 5.11ms Time], IncrementalHoareTripleChecker [0 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 41.54ms Time]
[2021-11-13 17:32:32,247 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states.
[2021-11-13 17:32:32,258 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 28.
[2021-11-13 17:32:32,260 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28 states, 19 states have (on average 1.2105263157894737) internal successors, (23), 21 states have internal predecessors, (23), 5 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (4), 3 states have call predecessors, (4), 4 states have call successors, (4)
[2021-11-13 17:32:32,263 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 32 transitions.
[2021-11-13 17:32:32,264 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 32 transitions. Word has length 19
[2021-11-13 17:32:32,272 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-11-13 17:32:32,272 INFO L470 AbstractCegarLoop]: Abstraction has 28 states and 32 transitions.
[2021-11-13 17:32:32,273 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.2) internal successors, (11), 4 states have internal predecessors, (11), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2)
[2021-11-13 17:32:32,273 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 32 transitions.
[2021-11-13 17:32:32,274 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21
[2021-11-13 17:32:32,274 INFO L506 BasicCegarLoop]: Found error trace
[2021-11-13 17:32:32,275 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-11-13 17:32:32,309 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b5d195b-4013-4fda-b28e-6df492beaa4e/bin/uautomizer-YU5uOKAj3y/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0
[2021-11-13 17:32:32,501 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b5d195b-4013-4fda-b28e-6df492beaa4e/bin/uautomizer-YU5uOKAj3y/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2021-11-13 17:32:32,501 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2021-11-13 17:32:32,502 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-11-13 17:32:32,502 INFO L85 PathProgramCache]: Analyzing trace with hash 1437250441, now seen corresponding path program 1 times
[2021-11-13 17:32:32,502 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-11-13 17:32:32,502 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [701639680]
[2021-11-13 17:32:32,503 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-11-13 17:32:32,503 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2021-11-13 17:32:32,527 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2021-11-13 17:32:32,530 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1648183307]
[2021-11-13 17:32:32,531 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-11-13 17:32:32,531 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2021-11-13 17:32:32,531 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b5d195b-4013-4fda-b28e-6df492beaa4e/bin/uautomizer-YU5uOKAj3y/z3
[2021-11-13 17:32:32,532 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b5d195b-4013-4fda-b28e-6df492beaa4e/bin/uautomizer-YU5uOKAj3y/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2021-11-13 17:32:32,554 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b5d195b-4013-4fda-b28e-6df492beaa4e/bin/uautomizer-YU5uOKAj3y/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process
[2021-11-13 17:32:32,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-11-13 17:32:32,601 INFO L263 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 3 conjunts are in the unsatisfiable core
[2021-11-13 17:32:32,603 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2021-11-13 17:32:32,699 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked.
[2021-11-13 17:32:32,699 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2021-11-13 17:32:32,700 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-11-13 17:32:32,700 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [701639680]
[2021-11-13 17:32:32,700 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown
[2021-11-13 17:32:32,700 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1648183307]
[2021-11-13 17:32:32,701 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1648183307] provided 1 perfect and 0 imperfect interpolant sequences
[2021-11-13 17:32:32,701 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2021-11-13 17:32:32,701 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2021-11-13 17:32:32,702 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1126164174]
[2021-11-13 17:32:32,702 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2021-11-13 17:32:32,702 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2021-11-13 17:32:32,703 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-11-13 17:32:32,703 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2021-11-13 17:32:32,703 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2021-11-13 17:32:32,704 INFO L87 Difference]: Start difference. First operand 28 states and 32 transitions. Second operand has 4 states, 4 states have (on average 3.0) internal successors, (12), 3 states have internal predecessors, (12), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2)
[2021-11-13 17:32:32,724 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-11-13 17:32:32,724 INFO L93 Difference]: Finished difference Result 36 states and 39 transitions.
[2021-11-13 17:32:32,725 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states.
[2021-11-13 17:32:32,725 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.0) internal successors, (12), 3 states have internal predecessors, (12), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 20
[2021-11-13 17:32:32,725 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-11-13 17:32:32,728 INFO L225 Difference]: With dead ends: 36
[2021-11-13 17:32:32,729 INFO L226 Difference]: Without dead ends: 28
[2021-11-13 17:32:32,730 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2021-11-13 17:32:32,731 INFO L933 BasicCegarLoop]: 22 mSDtfsCounter, 0 mSDsluCounter, 32 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.48ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 54 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.00ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.35ms IncrementalHoareTripleChecker+Time
[2021-11-13 17:32:32,733 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 54 Invalid, 8 Unknown, 0 Unchecked, 1.00ms Time], IncrementalHoareTripleChecker [0 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 14.35ms Time]
[2021-11-13 17:32:32,736 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states.
[2021-11-13 17:32:32,741 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 28.
[2021-11-13 17:32:32,743 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28 states, 19 states have (on average 1.1578947368421053) internal successors, (22), 21 states have internal predecessors, (22), 5 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (4), 3 states have call predecessors, (4), 4 states have call successors, (4)
[2021-11-13 17:32:32,745 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 31 transitions.
[2021-11-13 17:32:32,745 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 31 transitions. Word has length 20
[2021-11-13 17:32:32,746 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-11-13 17:32:32,746 INFO L470 AbstractCegarLoop]: Abstraction has 28 states and 31 transitions.
[2021-11-13 17:32:32,747 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.0) internal successors, (12), 3 states have internal predecessors, (12), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2)
[2021-11-13 17:32:32,747 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 31 transitions.
[2021-11-13 17:32:32,749 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27
[2021-11-13 17:32:32,749 INFO L506 BasicCegarLoop]: Found error trace
[2021-11-13 17:32:32,749 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-11-13 17:32:32,773 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b5d195b-4013-4fda-b28e-6df492beaa4e/bin/uautomizer-YU5uOKAj3y/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0
[2021-11-13 17:32:32,953 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b5d195b-4013-4fda-b28e-6df492beaa4e/bin/uautomizer-YU5uOKAj3y/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2021-11-13 17:32:32,953 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2021-11-13 17:32:32,954 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-11-13 17:32:32,954 INFO L85 PathProgramCache]: Analyzing trace with hash -833627624, now seen corresponding path program 1 times
[2021-11-13 17:32:32,954 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-11-13 17:32:32,955 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1439418406]
[2021-11-13 17:32:32,955 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-11-13 17:32:32,955 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2021-11-13 17:32:32,973 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2021-11-13 17:32:32,982 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [733926444]
[2021-11-13 17:32:32,982 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-11-13 17:32:32,982 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2021-11-13 17:32:32,984 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b5d195b-4013-4fda-b28e-6df492beaa4e/bin/uautomizer-YU5uOKAj3y/z3
[2021-11-13 17:32:32,986 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b5d195b-4013-4fda-b28e-6df492beaa4e/bin/uautomizer-YU5uOKAj3y/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2021-11-13 17:32:33,001 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b5d195b-4013-4fda-b28e-6df492beaa4e/bin/uautomizer-YU5uOKAj3y/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process
[2021-11-13 17:32:33,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-11-13 17:32:33,043 INFO L263 TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 10 conjunts are in the unsatisfiable core
[2021-11-13 17:32:33,045 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2021-11-13 17:32:33,312 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked.
[2021-11-13 17:32:33,314 INFO L328 TraceCheckSpWp]: Computing backward predicates...
[2021-11-13 17:32:33,518 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked.
[2021-11-13 17:32:33,519 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-11-13 17:32:33,520 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1439418406]
[2021-11-13 17:32:33,520 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown
[2021-11-13 17:32:33,520 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [733926444]
[2021-11-13 17:32:33,520 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [733926444] provided 0 perfect and 2 imperfect interpolant sequences
[2021-11-13 17:32:33,520 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences.
[2021-11-13 17:32:33,520 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 10
[2021-11-13 17:32:33,521 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1709355082]
[2021-11-13 17:32:33,521 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton
[2021-11-13 17:32:33,521 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states
[2021-11-13 17:32:33,522 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-11-13 17:32:33,523 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants.
[2021-11-13 17:32:33,524 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90
[2021-11-13 17:32:33,524 INFO L87 Difference]: Start difference. First operand 28 states and 31 transitions. Second operand has 10 states, 8 states have (on average 2.375) internal successors, (19), 9 states have internal predecessors, (19), 3 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3)
[2021-11-13 17:32:33,799 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-11-13 17:32:33,799 INFO L93 Difference]: Finished difference Result 28 states and 31 transitions.
[2021-11-13 17:32:33,800 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states.
[2021-11-13 17:32:33,800 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 8 states have (on average 2.375) internal successors, (19), 9 states have internal predecessors, (19), 3 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) Word has length 26
[2021-11-13 17:32:33,800 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-11-13 17:32:33,801 INFO L225 Difference]: With dead ends: 28
[2021-11-13 17:32:33,801 INFO L226 Difference]: Without dead ends: 0
[2021-11-13 17:32:33,801 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 41 SyntacticMatches, 2 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110
[2021-11-13 17:32:33,802 INFO L933 BasicCegarLoop]: 17 mSDtfsCounter, 10 mSDsluCounter, 70 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 210.30ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 87 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 7.12ms SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 216.22ms IncrementalHoareTripleChecker+Time
[2021-11-13 17:32:33,803 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [10 Valid, 87 Invalid, 31 Unknown, 0 Unchecked, 7.12ms Time], IncrementalHoareTripleChecker [5 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 216.22ms Time]
[2021-11-13 17:32:33,804 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states.
[2021-11-13 17:32:33,804 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0.
[2021-11-13 17:32:33,804 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)
[2021-11-13 17:32:33,804 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions.
[2021-11-13 17:32:33,805 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 26
[2021-11-13 17:32:33,805 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-11-13 17:32:33,805 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions.
[2021-11-13 17:32:33,805 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 8 states have (on average 2.375) internal successors, (19), 9 states have internal predecessors, (19), 3 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3)
[2021-11-13 17:32:33,805 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions.
[2021-11-13 17:32:33,806 INFO L282 IsEmpty]: Finished isEmpty. No accepting run.
[2021-11-13 17:32:33,808 INFO L764 garLoopResultBuilder]: Registering result SAFE for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining)
[2021-11-13 17:32:33,844 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b5d195b-4013-4fda-b28e-6df492beaa4e/bin/uautomizer-YU5uOKAj3y/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0
[2021-11-13 17:32:34,037 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b5d195b-4013-4fda-b28e-6df492beaa4e/bin/uautomizer-YU5uOKAj3y/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2021-11-13 17:32:34,038 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions.
[2021-11-13 17:32:34,063 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed.
[2021-11-13 17:32:34,063 INFO L854 garLoopResultBuilder]: At program point L35-3(lines 35 45) the Hoare annotation is: (= (+ |ULTIMATE.start_main_~x~0#1| |ULTIMATE.start_main_~y~0#1|) (+ (* |ULTIMATE.start_main_~x~0#1| |ULTIMATE.start_main_~z~0#1|) 1))
[2021-11-13 17:32:34,063 INFO L858 garLoopResultBuilder]: For program point L35-4(lines 35 45) no Hoare annotation was computed.
[2021-11-13 17:32:34,063 INFO L858 garLoopResultBuilder]: For program point L29(line 29) no Hoare annotation was computed.
[2021-11-13 17:32:34,063 INFO L861 garLoopResultBuilder]: At program point L50(lines 23 51) the Hoare annotation is: true
[2021-11-13 17:32:34,063 INFO L854 garLoopResultBuilder]: At program point L36(line 36) the Hoare annotation is: (= (+ |ULTIMATE.start_main_~x~0#1| |ULTIMATE.start_main_~y~0#1|) (+ (* |ULTIMATE.start_main_~x~0#1| |ULTIMATE.start_main_~z~0#1|) 1))
[2021-11-13 17:32:34,064 INFO L858 garLoopResultBuilder]: For program point L36-1(lines 35 45) no Hoare annotation was computed.
[2021-11-13 17:32:34,064 INFO L858 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed.
[2021-11-13 17:32:34,064 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed.
[2021-11-13 17:32:34,064 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed.
[2021-11-13 17:32:34,064 INFO L854 garLoopResultBuilder]: At program point L28(line 28) the Hoare annotation is: (<= ~counter~0 0)
[2021-11-13 17:32:34,064 INFO L854 garLoopResultBuilder]: At program point L28-1(line 28) the Hoare annotation is: (<= ~counter~0 0)
[2021-11-13 17:32:34,064 INFO L854 garLoopResultBuilder]: At program point L49(line 49) the Hoare annotation is: (= |ULTIMATE.start_main_~y~0#1| (+ |ULTIMATE.start_main_~x~0#1| 1))
[2021-11-13 17:32:34,064 INFO L858 garLoopResultBuilder]: For program point L49-1(line 49) no Hoare annotation was computed.
[2021-11-13 17:32:34,064 INFO L858 garLoopResultBuilder]: For program point L35-1(lines 35 45) no Hoare annotation was computed.
[2021-11-13 17:32:34,065 INFO L861 garLoopResultBuilder]: At program point assume_abort_if_notENTRY(lines 12 14) the Hoare annotation is: true
[2021-11-13 17:32:34,065 INFO L858 garLoopResultBuilder]: For program point L13(line 13) no Hoare annotation was computed.
[2021-11-13 17:32:34,065 INFO L858 garLoopResultBuilder]: For program point L13-2(lines 12 14) no Hoare annotation was computed.
[2021-11-13 17:32:34,065 INFO L858 garLoopResultBuilder]: For program point assume_abort_if_notEXIT(lines 12 14) no Hoare annotation was computed.
[2021-11-13 17:32:34,065 INFO L858 garLoopResultBuilder]: For program point L17(lines 17 18) no Hoare annotation was computed.
[2021-11-13 17:32:34,065 INFO L858 garLoopResultBuilder]: For program point L16(lines 16 19) no Hoare annotation was computed.
[2021-11-13 17:32:34,065 INFO L861 garLoopResultBuilder]: At program point __VERIFIER_assertENTRY(lines 15 21) the Hoare annotation is: true
[2021-11-13 17:32:34,065 INFO L858 garLoopResultBuilder]: For program point L16-2(lines 15 21) no Hoare annotation was computed.
[2021-11-13 17:32:34,066 INFO L858 garLoopResultBuilder]: For program point __VERIFIER_assertEXIT(lines 15 21) no Hoare annotation was computed.
[2021-11-13 17:32:34,066 INFO L858 garLoopResultBuilder]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 18) no Hoare annotation was computed.
[2021-11-13 17:32:34,069 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1]
[2021-11-13 17:32:34,070 INFO L179 ceAbstractionStarter]: Computing trace abstraction results
[2021-11-13 17:32:34,083 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.11 05:32:34 BoogieIcfgContainer
[2021-11-13 17:32:34,084 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2021-11-13 17:32:34,084 INFO L113 PluginConnector]: ------------------------Witness Printer----------------------------
[2021-11-13 17:32:34,084 INFO L271 PluginConnector]: Initializing Witness Printer...
[2021-11-13 17:32:34,084 INFO L275 PluginConnector]: Witness Printer initialized
[2021-11-13 17:32:34,085 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 05:32:31" (3/4) ...
[2021-11-13 17:32:34,088 INFO L137 WitnessPrinter]: Generating witness for correct program
[2021-11-13 17:32:34,094 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure assume_abort_if_not
[2021-11-13 17:32:34,094 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure __VERIFIER_assert
[2021-11-13 17:32:34,098 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges
[2021-11-13 17:32:34,098 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges
[2021-11-13 17:32:34,098 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges
[2021-11-13 17:32:34,098 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges
[2021-11-13 17:32:34,130 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b5d195b-4013-4fda-b28e-6df492beaa4e/bin/uautomizer-YU5uOKAj3y/witness.graphml
[2021-11-13 17:32:34,130 INFO L132 PluginConnector]: ------------------------ END Witness Printer----------------------------
[2021-11-13 17:32:34,131 INFO L158 Benchmark]: Toolchain (without parser) took 3598.27ms. Allocated memory was 94.4MB in the beginning and 136.3MB in the end (delta: 41.9MB). Free memory was 53.0MB in the beginning and 83.5MB in the end (delta: -30.5MB). Peak memory consumption was 11.2MB. Max. memory is 16.1GB.
[2021-11-13 17:32:34,131 INFO L158 Benchmark]: CDTParser took 0.33ms. Allocated memory is still 94.4MB. Free memory is still 69.1MB. There was no memory consumed. Max. memory is 16.1GB.
[2021-11-13 17:32:34,132 INFO L158 Benchmark]: CACSL2BoogieTranslator took 305.88ms. Allocated memory is still 94.4MB. Free memory was 52.8MB in the beginning and 68.6MB in the end (delta: -15.8MB). Peak memory consumption was 8.0MB. Max. memory is 16.1GB.
[2021-11-13 17:32:34,132 INFO L158 Benchmark]: Boogie Procedure Inliner took 31.61ms. Allocated memory is still 94.4MB. Free memory was 68.6MB in the beginning and 67.1MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
[2021-11-13 17:32:34,132 INFO L158 Benchmark]: Boogie Preprocessor took 21.03ms. Allocated memory is still 94.4MB. Free memory was 67.1MB in the beginning and 66.1MB in the end (delta: 1.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
[2021-11-13 17:32:34,133 INFO L158 Benchmark]: RCFGBuilder took 381.65ms. Allocated memory is still 94.4MB. Free memory was 66.1MB in the beginning and 56.4MB in the end (delta: 9.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB.
[2021-11-13 17:32:34,133 INFO L158 Benchmark]: TraceAbstraction took 2802.60ms. Allocated memory was 94.4MB in the beginning and 136.3MB in the end (delta: 41.9MB). Free memory was 55.9MB in the beginning and 86.7MB in the end (delta: -30.7MB). Peak memory consumption was 13.4MB. Max. memory is 16.1GB.
[2021-11-13 17:32:34,133 INFO L158 Benchmark]: Witness Printer took 46.26ms. Allocated memory is still 136.3MB. Free memory was 86.7MB in the beginning and 83.5MB in the end (delta: 3.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB.
[2021-11-13 17:32:34,136 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 69.1MB. There was no memory consumed. Max. memory is 16.1GB.
* CACSL2BoogieTranslator took 305.88ms. Allocated memory is still 94.4MB. Free memory was 52.8MB in the beginning and 68.6MB in the end (delta: -15.8MB). Peak memory consumption was 8.0MB. Max. memory is 16.1GB.
* Boogie Procedure Inliner took 31.61ms. Allocated memory is still 94.4MB. Free memory was 68.6MB in the beginning and 67.1MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
* Boogie Preprocessor took 21.03ms. Allocated memory is still 94.4MB. Free memory was 67.1MB in the beginning and 66.1MB in the end (delta: 1.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
* RCFGBuilder took 381.65ms. Allocated memory is still 94.4MB. Free memory was 66.1MB in the beginning and 56.4MB in the end (delta: 9.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB.
* TraceAbstraction took 2802.60ms. Allocated memory was 94.4MB in the beginning and 136.3MB in the end (delta: 41.9MB). Free memory was 55.9MB in the beginning and 86.7MB in the end (delta: -30.7MB). Peak memory consumption was 13.4MB. Max. memory is 16.1GB.
* Witness Printer took 46.26ms. Allocated memory is still 136.3MB. Free memory was 86.7MB in the beginning and 83.5MB in the end (delta: 3.2MB). Peak memory consumption was 4.2MB. 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: 18]: 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 3 procedures, 25 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 2.7s, OverallIterations: 4, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 18 SdHoareTripleChecker+Valid, 272.11ms IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 17 mSDsluCounter, 245 SdHoareTripleChecker+Invalid, 250.49ms Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 158 mSDsCounter, 5 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 56 IncrementalHoareTripleChecker+Invalid, 61 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 5 mSolverCounterUnsat, 87 mSDtfsCounter, 56 mSolverCounterSat, 14.73ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 98 GetRequests, 81 SyntacticMatches, 2 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=28occurred in iteration=2, InterpolantAutomatonStates: 17, 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, 4 MinimizatonAttempts, 2 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 8 LocationsWithAnnotation, 15 PreInvPairs, 22 NumberOfFragments, 32 HoareAnnotationTreeSize, 15 FomulaSimplifications, 37 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 8 FomulaSimplificationsInter, 7 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.9s InterpolantComputationTime, 84 NumberOfCodeBlocks, 84 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 105 ConstructedInterpolants, 1 QuantifiedInterpolants, 237 SizeOfPredicates, 4 NumberOfNonLiveVariables, 239 ConjunctsInSsa, 20 ConjunctsInUnsatCore, 5 InterpolantComputations, 3 PerfectInterpolantSequences, 22/24 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: 23]: Loop Invariant
Derived loop invariant: 1
- InvariantResult [Line: 35]: Loop Invariant
Derived loop invariant: x + y == x * z + 1
RESULT: Ultimate proved your program to be correct!
[2021-11-13 17:32:34,157 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b5d195b-4013-4fda-b28e-6df492beaa4e/bin/uautomizer-YU5uOKAj3y/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