/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data --core.log.level.for.class de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationQvasr_64.epf -i ../../../trunk/examples/svcomp/loops/verisec_OpenSER_cases1_stripFullBoth_arr.i
--------------------------------------------------------------------------------
This is Ultimate 0.2.2-dev-6c470ae
[2022-02-15 03:39:06,520 INFO L177 SettingsManager]: Resetting all preferences to default values...
[2022-02-15 03:39:06,522 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values
[2022-02-15 03:39:06,572 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2022-02-15 03:39:06,572 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2022-02-15 03:39:06,587 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2022-02-15 03:39:06,589 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2022-02-15 03:39:06,592 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values
[2022-02-15 03:39:06,593 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values
[2022-02-15 03:39:06,597 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values
[2022-02-15 03:39:06,598 INFO L181 SettingsManager]: Resetting Sifa preferences to default values
[2022-02-15 03:39:06,599 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2022-02-15 03:39:06,599 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values
[2022-02-15 03:39:06,601 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values
[2022-02-15 03:39:06,602 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2022-02-15 03:39:06,605 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values
[2022-02-15 03:39:06,605 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2022-02-15 03:39:06,606 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2022-02-15 03:39:06,607 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2022-02-15 03:39:06,612 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values
[2022-02-15 03:39:06,613 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2022-02-15 03:39:06,614 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values
[2022-02-15 03:39:06,615 INFO L181 SettingsManager]: Resetting Referee preferences to default values
[2022-02-15 03:39:06,616 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values
[2022-02-15 03:39:06,621 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2022-02-15 03:39:06,622 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2022-02-15 03:39:06,622 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values
[2022-02-15 03:39:06,623 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values
[2022-02-15 03:39:06,623 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values
[2022-02-15 03:39:06,624 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring...
[2022-02-15 03:39:06,624 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values
[2022-02-15 03:39:06,625 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values
[2022-02-15 03:39:06,626 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values
[2022-02-15 03:39:06,626 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values
[2022-02-15 03:39:06,627 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2022-02-15 03:39:06,628 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values
[2022-02-15 03:39:06,628 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring...
[2022-02-15 03:39:06,628 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring...
[2022-02-15 03:39:06,628 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values
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[2022-02-15 03:39:06,629 INFO L188 SettingsManager]: Finished resetting all preferences to default values...
[2022-02-15 03:39:06,630 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationQvasr_64.epf
[2022-02-15 03:39:06,641 INFO L113 SettingsManager]: Loading preferences was successful
[2022-02-15 03:39:06,641 INFO L115 SettingsManager]: Preferences different from defaults after loading the file:
[2022-02-15 03:39:06,642 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2022-02-15 03:39:06,643 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true
[2022-02-15 03:39:06,643 INFO L138 SettingsManager]: * Check division by zero=IGNORE
[2022-02-15 03:39:06,643 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE
[2022-02-15 03:39:06,643 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE
[2022-02-15 03:39:06,643 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE
[2022-02-15 03:39:06,643 INFO L138 SettingsManager]: * Check if freed pointer was valid=false
[2022-02-15 03:39:06,643 INFO L138 SettingsManager]: * Use constant arrays=true
[2022-02-15 03:39:06,644 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE
[2022-02-15 03:39:06,644 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2022-02-15 03:39:06,644 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements
[2022-02-15 03:39:06,644 INFO L138 SettingsManager]: * To the following directory=./dump/
[2022-02-15 03:39:06,644 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode
[2022-02-15 03:39:06,644 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2022-02-15 03:39:06,644 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2022-02-15 03:39:06,645 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation
[2022-02-15 03:39:06,645 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2022-02-15 03:39:06,645 INFO L138 SettingsManager]: * Loop acceleration method that is used by accelerated interpolation=QVASR
[2022-02-15 03:39:06,645 INFO L138 SettingsManager]: * Use separate solver for trace checks=false
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$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN;
[2022-02-15 03:39:06,866 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp
[2022-02-15 03:39:06,882 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2022-02-15 03:39:06,884 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2022-02-15 03:39:06,885 INFO L271 PluginConnector]: Initializing CDTParser...
[2022-02-15 03:39:06,886 INFO L275 PluginConnector]: CDTParser initialized
[2022-02-15 03:39:06,887 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loops/verisec_OpenSER_cases1_stripFullBoth_arr.i
[2022-02-15 03:39:06,947 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1123d2f3c/b4f508363b02490ea38d304af9f9a42b/FLAGfbddc94b1
[2022-02-15 03:39:07,370 INFO L306 CDTParser]: Found 1 translation units.
[2022-02-15 03:39:07,371 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loops/verisec_OpenSER_cases1_stripFullBoth_arr.i
[2022-02-15 03:39:07,384 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1123d2f3c/b4f508363b02490ea38d304af9f9a42b/FLAGfbddc94b1
[2022-02-15 03:39:07,739 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1123d2f3c/b4f508363b02490ea38d304af9f9a42b
[2022-02-15 03:39:07,741 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2022-02-15 03:39:07,743 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements.
[2022-02-15 03:39:07,747 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2022-02-15 03:39:07,747 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator...
[2022-02-15 03:39:07,750 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized
[2022-02-15 03:39:07,751 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.02 03:39:07" (1/1) ...
[2022-02-15 03:39:07,752 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1f23d495 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 03:39:07, skipping insertion in model container
[2022-02-15 03:39:07,752 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.02 03:39:07" (1/1) ...
[2022-02-15 03:39:07,757 INFO L145 MainTranslator]: Starting translation in SV-COMP mode
[2022-02-15 03:39:07,773 INFO L178 MainTranslator]: Built tables and reachable declarations
[2022-02-15 03:39:07,954 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loops/verisec_OpenSER_cases1_stripFullBoth_arr.i[840,853]
[2022-02-15 03:39:08,012 INFO L210 PostProcessor]: Analyzing one entry point: main
[2022-02-15 03:39:08,027 INFO L203 MainTranslator]: Completed pre-run
[2022-02-15 03:39:08,040 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loops/verisec_OpenSER_cases1_stripFullBoth_arr.i[840,853]
[2022-02-15 03:39:08,063 INFO L210 PostProcessor]: Analyzing one entry point: main
[2022-02-15 03:39:08,081 INFO L208 MainTranslator]: Completed translation
[2022-02-15 03:39:08,081 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 03:39:08 WrapperNode
[2022-02-15 03:39:08,081 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2022-02-15 03:39:08,082 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2022-02-15 03:39:08,082 INFO L271 PluginConnector]: Initializing Boogie Preprocessor...
[2022-02-15 03:39:08,082 INFO L275 PluginConnector]: Boogie Preprocessor initialized
[2022-02-15 03:39:08,091 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 03:39:08" (1/1) ...
[2022-02-15 03:39:08,091 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 03:39:08" (1/1) ...
[2022-02-15 03:39:08,106 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 03:39:08" (1/1) ...
[2022-02-15 03:39:08,106 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 03:39:08" (1/1) ...
[2022-02-15 03:39:08,119 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 03:39:08" (1/1) ...
[2022-02-15 03:39:08,124 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 03:39:08" (1/1) ...
[2022-02-15 03:39:08,126 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 03:39:08" (1/1) ...
[2022-02-15 03:39:08,128 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2022-02-15 03:39:08,129 INFO L113 PluginConnector]: ------------------------RCFGBuilder----------------------------
[2022-02-15 03:39:08,129 INFO L271 PluginConnector]: Initializing RCFGBuilder...
[2022-02-15 03:39:08,129 INFO L275 PluginConnector]: RCFGBuilder initialized
[2022-02-15 03:39:08,130 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 03:39:08" (1/1) ...
[2022-02-15 03:39:08,142 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2022-02-15 03:39:08,149 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2022-02-15 03:39:08,168 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)
[2022-02-15 03:39:08,172 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
[2022-02-15 03:39:08,206 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init
[2022-02-15 03:39:08,206 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2022-02-15 03:39:08,206 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error
[2022-02-15 03:39:08,206 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert
[2022-02-15 03:39:08,206 INFO L138 BoogieDeclarations]: Found implementation of procedure r_strncpy
[2022-02-15 03:39:08,207 INFO L138 BoogieDeclarations]: Found implementation of procedure parse_expression_list
[2022-02-15 03:39:08,207 INFO L138 BoogieDeclarations]: Found implementation of procedure main
[2022-02-15 03:39:08,207 INFO L130 BoogieDeclarations]: Found specification of procedure abort
[2022-02-15 03:39:08,207 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail
[2022-02-15 03:39:08,207 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_perror_fail
[2022-02-15 03:39:08,207 INFO L130 BoogieDeclarations]: Found specification of procedure __assert
[2022-02-15 03:39:08,207 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error
[2022-02-15 03:39:08,207 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2022-02-15 03:39:08,207 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert
[2022-02-15 03:39:08,207 INFO L130 BoogieDeclarations]: Found specification of procedure strchr
[2022-02-15 03:39:08,207 INFO L130 BoogieDeclarations]: Found specification of procedure strrchr
[2022-02-15 03:39:08,207 INFO L130 BoogieDeclarations]: Found specification of procedure strstr
[2022-02-15 03:39:08,207 INFO L130 BoogieDeclarations]: Found specification of procedure strncpy
[2022-02-15 03:39:08,207 INFO L130 BoogieDeclarations]: Found specification of procedure strncpy_ptr
[2022-02-15 03:39:08,208 INFO L130 BoogieDeclarations]: Found specification of procedure strcpy
[2022-02-15 03:39:08,208 INFO L130 BoogieDeclarations]: Found specification of procedure strlen
[2022-02-15 03:39:08,208 INFO L130 BoogieDeclarations]: Found specification of procedure strncmp
[2022-02-15 03:39:08,208 INFO L130 BoogieDeclarations]: Found specification of procedure strcmp
[2022-02-15 03:39:08,208 INFO L130 BoogieDeclarations]: Found specification of procedure strcat
[2022-02-15 03:39:08,208 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy
[2022-02-15 03:39:08,208 INFO L130 BoogieDeclarations]: Found specification of procedure isascii
[2022-02-15 03:39:08,208 INFO L130 BoogieDeclarations]: Found specification of procedure isspace
[2022-02-15 03:39:08,208 INFO L130 BoogieDeclarations]: Found specification of procedure getc
[2022-02-15 03:39:08,208 INFO L130 BoogieDeclarations]: Found specification of procedure strrand
[2022-02-15 03:39:08,208 INFO L130 BoogieDeclarations]: Found specification of procedure istrrand
[2022-02-15 03:39:08,208 INFO L130 BoogieDeclarations]: Found specification of procedure istrchr
[2022-02-15 03:39:08,208 INFO L130 BoogieDeclarations]: Found specification of procedure istrrchr
[2022-02-15 03:39:08,209 INFO L130 BoogieDeclarations]: Found specification of procedure istrncmp
[2022-02-15 03:39:08,209 INFO L130 BoogieDeclarations]: Found specification of procedure istrstr
[2022-02-15 03:39:08,209 INFO L130 BoogieDeclarations]: Found specification of procedure r_strncpy
[2022-02-15 03:39:08,209 INFO L130 BoogieDeclarations]: Found specification of procedure r_strcpy
[2022-02-15 03:39:08,209 INFO L130 BoogieDeclarations]: Found specification of procedure r_strcat
[2022-02-15 03:39:08,209 INFO L130 BoogieDeclarations]: Found specification of procedure r_strncat
[2022-02-15 03:39:08,209 INFO L130 BoogieDeclarations]: Found specification of procedure r_memcpy
[2022-02-15 03:39:08,209 INFO L130 BoogieDeclarations]: Found specification of procedure parse_expression_list
[2022-02-15 03:39:08,209 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack
[2022-02-15 03:39:08,209 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2022-02-15 03:39:08,209 INFO L130 BoogieDeclarations]: Found specification of procedure read~int
[2022-02-15 03:39:08,209 INFO L130 BoogieDeclarations]: Found specification of procedure write~int
[2022-02-15 03:39:08,209 INFO L130 BoogieDeclarations]: Found specification of procedure main
[2022-02-15 03:39:08,210 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init
[2022-02-15 03:39:08,210 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int
[2022-02-15 03:39:08,210 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2022-02-15 03:39:08,342 INFO L234 CfgBuilder]: Building ICFG
[2022-02-15 03:39:08,344 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation
[2022-02-15 03:39:08,499 INFO L275 CfgBuilder]: Performing block encoding
[2022-02-15 03:39:08,503 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2022-02-15 03:39:08,504 INFO L299 CfgBuilder]: Removed 3 assume(true) statements.
[2022-02-15 03:39:08,505 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.02 03:39:08 BoogieIcfgContainer
[2022-02-15 03:39:08,505 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2022-02-15 03:39:08,506 INFO L113 PluginConnector]: ------------------------TraceAbstraction----------------------------
[2022-02-15 03:39:08,506 INFO L271 PluginConnector]: Initializing TraceAbstraction...
[2022-02-15 03:39:08,512 INFO L275 PluginConnector]: TraceAbstraction initialized
[2022-02-15 03:39:08,512 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.02 03:39:07" (1/3) ...
[2022-02-15 03:39:08,512 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2d07ff39 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.02 03:39:08, skipping insertion in model container
[2022-02-15 03:39:08,512 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 03:39:08" (2/3) ...
[2022-02-15 03:39:08,514 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2d07ff39 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.02 03:39:08, skipping insertion in model container
[2022-02-15 03:39:08,514 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.02 03:39:08" (3/3) ...
[2022-02-15 03:39:08,515 INFO L111 eAbstractionObserver]: Analyzing ICFG verisec_OpenSER_cases1_stripFullBoth_arr.i
[2022-02-15 03:39:08,519 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION
[2022-02-15 03:39:08,519 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2022-02-15 03:39:08,552 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2022-02-15 03:39:08,557 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=AcceleratedInterpolation, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=All, 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=QVASR
[2022-02-15 03:39:08,557 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2022-02-15 03:39:08,568 INFO L276 IsEmpty]: Start isEmpty. Operand has 51 states, 39 states have (on average 1.435897435897436) internal successors, (56), 40 states have internal predecessors, (56), 5 states have call successors, (5), 5 states have call predecessors, (5), 5 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5)
[2022-02-15 03:39:08,574 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30
[2022-02-15 03:39:08,575 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-15 03:39:08,575 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-15 03:39:08,576 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2022-02-15 03:39:08,580 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-15 03:39:08,580 INFO L85 PathProgramCache]: Analyzing trace with hash 1687048304, now seen corresponding path program 1 times
[2022-02-15 03:39:08,587 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2022-02-15 03:39:08,587 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [719885426]
[2022-02-15 03:39:08,588 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-15 03:39:08,599 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-15 03:39:08,644 INFO L274 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation
[2022-02-15 03:39:08,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-15 03:39:08,781 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2022-02-15 03:39:08,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-15 03:39:08,793 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20
[2022-02-15 03:39:08,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-15 03:39:08,799 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-15 03:39:08,800 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace
[2022-02-15 03:39:08,800 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [719885426]
[2022-02-15 03:39:08,801 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [719885426] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-15 03:39:08,801 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-15 03:39:08,802 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2022-02-15 03:39:08,802 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1297300136]
[2022-02-15 03:39:08,803 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-15 03:39:08,806 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2022-02-15 03:39:08,807 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2022-02-15 03:39:08,829 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2022-02-15 03:39:08,831 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2022-02-15 03:39:08,833 INFO L87 Difference]: Start difference. First operand has 51 states, 39 states have (on average 1.435897435897436) internal successors, (56), 40 states have internal predecessors, (56), 5 states have call successors, (5), 5 states have call predecessors, (5), 5 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) Second operand has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 2 states have internal predecessors, (22), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2)
[2022-02-15 03:39:08,902 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-15 03:39:08,903 INFO L93 Difference]: Finished difference Result 93 states and 123 transitions.
[2022-02-15 03:39:08,904 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2022-02-15 03:39:08,905 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 2 states have internal predecessors, (22), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 29
[2022-02-15 03:39:08,905 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-15 03:39:08,910 INFO L225 Difference]: With dead ends: 93
[2022-02-15 03:39:08,911 INFO L226 Difference]: Without dead ends: 43
[2022-02-15 03:39:08,914 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2022-02-15 03:39:08,919 INFO L933 BasicCegarLoop]: 59 mSDtfsCounter, 49 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 52 SdHoareTripleChecker+Valid, 62 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2022-02-15 03:39:08,919 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [52 Valid, 62 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2022-02-15 03:39:08,932 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states.
[2022-02-15 03:39:08,953 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 43.
[2022-02-15 03:39:08,954 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43 states, 34 states have (on average 1.2941176470588236) internal successors, (44), 34 states have internal predecessors, (44), 5 states have call successors, (5), 5 states have call predecessors, (5), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3)
[2022-02-15 03:39:08,956 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 52 transitions.
[2022-02-15 03:39:08,958 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 52 transitions. Word has length 29
[2022-02-15 03:39:08,958 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-15 03:39:08,958 INFO L470 AbstractCegarLoop]: Abstraction has 43 states and 52 transitions.
[2022-02-15 03:39:08,958 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 2 states have internal predecessors, (22), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2)
[2022-02-15 03:39:08,959 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 52 transitions.
[2022-02-15 03:39:08,960 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34
[2022-02-15 03:39:08,960 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-15 03:39:08,960 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-15 03:39:08,961 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2022-02-15 03:39:08,961 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2022-02-15 03:39:08,962 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-15 03:39:08,962 INFO L85 PathProgramCache]: Analyzing trace with hash 1509330471, now seen corresponding path program 1 times
[2022-02-15 03:39:08,962 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2022-02-15 03:39:08,962 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1032465131]
[2022-02-15 03:39:08,963 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-15 03:39:08,963 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-15 03:39:08,965 INFO L274 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation
[2022-02-15 03:39:09,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-15 03:39:09,053 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2022-02-15 03:39:09,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-15 03:39:09,066 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24
[2022-02-15 03:39:09,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-15 03:39:09,080 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-15 03:39:09,081 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace
[2022-02-15 03:39:09,081 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1032465131]
[2022-02-15 03:39:09,082 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [1032465131] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-15 03:39:09,082 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-15 03:39:09,082 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2022-02-15 03:39:09,082 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1429983693]
[2022-02-15 03:39:09,083 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-15 03:39:09,085 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2022-02-15 03:39:09,087 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2022-02-15 03:39:09,087 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2022-02-15 03:39:09,088 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2022-02-15 03:39:09,088 INFO L87 Difference]: Start difference. First operand 43 states and 52 transitions. Second operand has 4 states, 4 states have (on average 6.5) internal successors, (26), 3 states have internal predecessors, (26), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2)
[2022-02-15 03:39:09,191 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-15 03:39:09,191 INFO L93 Difference]: Finished difference Result 78 states and 97 transitions.
[2022-02-15 03:39:09,191 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states.
[2022-02-15 03:39:09,192 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.5) internal successors, (26), 3 states have internal predecessors, (26), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 33
[2022-02-15 03:39:09,192 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-15 03:39:09,194 INFO L225 Difference]: With dead ends: 78
[2022-02-15 03:39:09,194 INFO L226 Difference]: Without dead ends: 44
[2022-02-15 03:39:09,197 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2022-02-15 03:39:09,198 INFO L933 BasicCegarLoop]: 49 mSDtfsCounter, 42 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 44 SdHoareTripleChecker+Valid, 56 SdHoareTripleChecker+Invalid, 55 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-15 03:39:09,198 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [44 Valid, 56 Invalid, 55 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-15 03:39:09,215 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states.
[2022-02-15 03:39:09,220 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 44.
[2022-02-15 03:39:09,220 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44 states, 35 states have (on average 1.2857142857142858) internal successors, (45), 35 states have internal predecessors, (45), 5 states have call successors, (5), 5 states have call predecessors, (5), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3)
[2022-02-15 03:39:09,235 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 53 transitions.
[2022-02-15 03:39:09,236 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 53 transitions. Word has length 33
[2022-02-15 03:39:09,236 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-15 03:39:09,236 INFO L470 AbstractCegarLoop]: Abstraction has 44 states and 53 transitions.
[2022-02-15 03:39:09,236 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.5) internal successors, (26), 3 states have internal predecessors, (26), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2)
[2022-02-15 03:39:09,236 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 53 transitions.
[2022-02-15 03:39:09,237 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34
[2022-02-15 03:39:09,237 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-15 03:39:09,237 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-15 03:39:09,238 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2022-02-15 03:39:09,238 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2022-02-15 03:39:09,238 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-15 03:39:09,238 INFO L85 PathProgramCache]: Analyzing trace with hash 1932032297, now seen corresponding path program 1 times
[2022-02-15 03:39:09,238 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2022-02-15 03:39:09,239 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1746858560]
[2022-02-15 03:39:09,239 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-15 03:39:09,239 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-15 03:39:09,241 INFO L274 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation
[2022-02-15 03:39:09,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-15 03:39:09,329 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2022-02-15 03:39:09,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-15 03:39:09,338 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24
[2022-02-15 03:39:09,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-15 03:39:09,344 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-15 03:39:09,345 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace
[2022-02-15 03:39:09,345 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1746858560]
[2022-02-15 03:39:09,345 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [1746858560] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-15 03:39:09,346 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-15 03:39:09,346 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2022-02-15 03:39:09,346 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1582876785]
[2022-02-15 03:39:09,346 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-15 03:39:09,347 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2022-02-15 03:39:09,347 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2022-02-15 03:39:09,348 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2022-02-15 03:39:09,348 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30
[2022-02-15 03:39:09,348 INFO L87 Difference]: Start difference. First operand 44 states and 53 transitions. Second operand has 6 states, 6 states have (on average 4.333333333333333) internal successors, (26), 5 states have internal predecessors, (26), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2)
[2022-02-15 03:39:09,503 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-15 03:39:09,504 INFO L93 Difference]: Finished difference Result 106 states and 136 transitions.
[2022-02-15 03:39:09,504 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states.
[2022-02-15 03:39:09,504 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 4.333333333333333) internal successors, (26), 5 states have internal predecessors, (26), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 33
[2022-02-15 03:39:09,504 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-15 03:39:09,506 INFO L225 Difference]: With dead ends: 106
[2022-02-15 03:39:09,506 INFO L226 Difference]: Without dead ends: 71
[2022-02-15 03:39:09,507 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90
[2022-02-15 03:39:09,508 INFO L933 BasicCegarLoop]: 44 mSDtfsCounter, 96 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 157 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 98 SdHoareTripleChecker+Valid, 61 SdHoareTripleChecker+Invalid, 175 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 157 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-15 03:39:09,508 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [98 Valid, 61 Invalid, 175 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 157 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-15 03:39:09,509 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71 states.
[2022-02-15 03:39:09,518 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71 to 52.
[2022-02-15 03:39:09,518 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52 states, 43 states have (on average 1.302325581395349) internal successors, (56), 43 states have internal predecessors, (56), 5 states have call successors, (5), 5 states have call predecessors, (5), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3)
[2022-02-15 03:39:09,519 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 64 transitions.
[2022-02-15 03:39:09,519 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 64 transitions. Word has length 33
[2022-02-15 03:39:09,520 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-15 03:39:09,520 INFO L470 AbstractCegarLoop]: Abstraction has 52 states and 64 transitions.
[2022-02-15 03:39:09,520 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 4.333333333333333) internal successors, (26), 5 states have internal predecessors, (26), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2)
[2022-02-15 03:39:09,520 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 64 transitions.
[2022-02-15 03:39:09,521 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34
[2022-02-15 03:39:09,521 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-15 03:39:09,521 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-15 03:39:09,521 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2022-02-15 03:39:09,521 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2022-02-15 03:39:09,521 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-15 03:39:09,521 INFO L85 PathProgramCache]: Analyzing trace with hash -1403704983, now seen corresponding path program 1 times
[2022-02-15 03:39:09,522 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2022-02-15 03:39:09,522 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [819173140]
[2022-02-15 03:39:09,522 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-15 03:39:09,522 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-15 03:39:09,524 INFO L274 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation
[2022-02-15 03:39:09,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-15 03:39:09,642 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2022-02-15 03:39:09,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-15 03:39:09,647 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24
[2022-02-15 03:39:09,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-15 03:39:09,652 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-15 03:39:09,652 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace
[2022-02-15 03:39:09,652 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [819173140]
[2022-02-15 03:39:09,653 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [819173140] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-15 03:39:09,653 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-15 03:39:09,653 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9
[2022-02-15 03:39:09,653 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [137365812]
[2022-02-15 03:39:09,653 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-15 03:39:09,654 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states
[2022-02-15 03:39:09,654 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2022-02-15 03:39:09,654 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants.
[2022-02-15 03:39:09,654 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72
[2022-02-15 03:39:09,654 INFO L87 Difference]: Start difference. First operand 52 states and 64 transitions. Second operand has 9 states, 9 states have (on average 2.888888888888889) internal successors, (26), 7 states have internal predecessors, (26), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2)
[2022-02-15 03:39:09,941 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-15 03:39:09,941 INFO L93 Difference]: Finished difference Result 106 states and 136 transitions.
[2022-02-15 03:39:09,941 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states.
[2022-02-15 03:39:09,942 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 2.888888888888889) internal successors, (26), 7 states have internal predecessors, (26), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 33
[2022-02-15 03:39:09,942 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-15 03:39:09,943 INFO L225 Difference]: With dead ends: 106
[2022-02-15 03:39:09,943 INFO L226 Difference]: Without dead ends: 104
[2022-02-15 03:39:09,944 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=68, Invalid=204, Unknown=0, NotChecked=0, Total=272
[2022-02-15 03:39:09,944 INFO L933 BasicCegarLoop]: 46 mSDtfsCounter, 187 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 277 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 189 SdHoareTripleChecker+Valid, 68 SdHoareTripleChecker+Invalid, 316 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 277 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time
[2022-02-15 03:39:09,945 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [189 Valid, 68 Invalid, 316 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 277 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time]
[2022-02-15 03:39:09,945 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 104 states.
[2022-02-15 03:39:09,955 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 104 to 84.
[2022-02-15 03:39:09,956 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 84 states, 72 states have (on average 1.3194444444444444) internal successors, (95), 73 states have internal predecessors, (95), 7 states have call successors, (7), 6 states have call predecessors, (7), 4 states have return successors, (5), 4 states have call predecessors, (5), 5 states have call successors, (5)
[2022-02-15 03:39:09,963 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 84 states and 107 transitions.
[2022-02-15 03:39:09,963 INFO L78 Accepts]: Start accepts. Automaton has 84 states and 107 transitions. Word has length 33
[2022-02-15 03:39:09,964 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-15 03:39:09,964 INFO L470 AbstractCegarLoop]: Abstraction has 84 states and 107 transitions.
[2022-02-15 03:39:09,964 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 2.888888888888889) internal successors, (26), 7 states have internal predecessors, (26), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2)
[2022-02-15 03:39:09,964 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 107 transitions.
[2022-02-15 03:39:09,970 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34
[2022-02-15 03:39:09,970 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-15 03:39:09,970 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-15 03:39:09,970 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3
[2022-02-15 03:39:09,971 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2022-02-15 03:39:09,972 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-15 03:39:09,974 INFO L85 PathProgramCache]: Analyzing trace with hash 590439723, now seen corresponding path program 1 times
[2022-02-15 03:39:09,974 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2022-02-15 03:39:09,974 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1074472112]
[2022-02-15 03:39:09,975 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-15 03:39:09,976 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-15 03:39:09,978 INFO L274 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation
[2022-02-15 03:39:09,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-15 03:39:10,098 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2022-02-15 03:39:10,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-15 03:39:10,117 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24
[2022-02-15 03:39:10,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-15 03:39:10,122 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-15 03:39:10,123 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace
[2022-02-15 03:39:10,123 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1074472112]
[2022-02-15 03:39:10,123 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [1074472112] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-15 03:39:10,123 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-15 03:39:10,123 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9
[2022-02-15 03:39:10,123 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1498995416]
[2022-02-15 03:39:10,123 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-15 03:39:10,124 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states
[2022-02-15 03:39:10,124 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2022-02-15 03:39:10,124 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants.
[2022-02-15 03:39:10,124 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72
[2022-02-15 03:39:10,125 INFO L87 Difference]: Start difference. First operand 84 states and 107 transitions. Second operand has 9 states, 9 states have (on average 2.888888888888889) internal successors, (26), 7 states have internal predecessors, (26), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2)
[2022-02-15 03:39:10,384 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-15 03:39:10,384 INFO L93 Difference]: Finished difference Result 195 states and 257 transitions.
[2022-02-15 03:39:10,384 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-15 03:39:10,384 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 2.888888888888889) internal successors, (26), 7 states have internal predecessors, (26), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 33
[2022-02-15 03:39:10,385 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-15 03:39:10,386 INFO L225 Difference]: With dead ends: 195
[2022-02-15 03:39:10,386 INFO L226 Difference]: Without dead ends: 127
[2022-02-15 03:39:10,387 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=139, Unknown=0, NotChecked=0, Total=182
[2022-02-15 03:39:10,388 INFO L933 BasicCegarLoop]: 50 mSDtfsCounter, 140 mSDsluCounter, 27 mSDsCounter, 0 mSdLazyCounter, 333 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 142 SdHoareTripleChecker+Valid, 77 SdHoareTripleChecker+Invalid, 365 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 333 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time
[2022-02-15 03:39:10,388 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [142 Valid, 77 Invalid, 365 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 333 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time]
[2022-02-15 03:39:10,388 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 127 states.
[2022-02-15 03:39:10,401 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 127 to 91.
[2022-02-15 03:39:10,401 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 91 states, 79 states have (on average 1.3037974683544304) internal successors, (103), 80 states have internal predecessors, (103), 7 states have call successors, (7), 6 states have call predecessors, (7), 4 states have return successors, (5), 4 states have call predecessors, (5), 5 states have call successors, (5)
[2022-02-15 03:39:10,402 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 91 states and 115 transitions.
[2022-02-15 03:39:10,403 INFO L78 Accepts]: Start accepts. Automaton has 91 states and 115 transitions. Word has length 33
[2022-02-15 03:39:10,403 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-15 03:39:10,403 INFO L470 AbstractCegarLoop]: Abstraction has 91 states and 115 transitions.
[2022-02-15 03:39:10,403 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 2.888888888888889) internal successors, (26), 7 states have internal predecessors, (26), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2)
[2022-02-15 03:39:10,403 INFO L276 IsEmpty]: Start isEmpty. Operand 91 states and 115 transitions.
[2022-02-15 03:39:10,404 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36
[2022-02-15 03:39:10,404 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-15 03:39:10,404 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-15 03:39:10,404 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4
[2022-02-15 03:39:10,404 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2022-02-15 03:39:10,404 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-15 03:39:10,405 INFO L85 PathProgramCache]: Analyzing trace with hash -532744798, now seen corresponding path program 1 times
[2022-02-15 03:39:10,405 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2022-02-15 03:39:10,405 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1965434855]
[2022-02-15 03:39:10,405 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-15 03:39:10,405 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-15 03:39:10,406 INFO L274 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation
[2022-02-15 03:39:10,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-15 03:39:10,441 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2022-02-15 03:39:10,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-15 03:39:10,445 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26
[2022-02-15 03:39:10,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-15 03:39:10,448 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-15 03:39:10,448 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace
[2022-02-15 03:39:10,448 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1965434855]
[2022-02-15 03:39:10,448 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [1965434855] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-15 03:39:10,448 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-15 03:39:10,448 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-15 03:39:10,449 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2018690152]
[2022-02-15 03:39:10,449 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-15 03:39:10,449 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2022-02-15 03:39:10,449 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2022-02-15 03:39:10,449 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2022-02-15 03:39:10,449 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42
[2022-02-15 03:39:10,449 INFO L87 Difference]: Start difference. First operand 91 states and 115 transitions. Second operand has 7 states, 7 states have (on average 4.0) internal successors, (28), 6 states have internal predecessors, (28), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2)
[2022-02-15 03:39:10,628 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-15 03:39:10,628 INFO L93 Difference]: Finished difference Result 180 states and 227 transitions.
[2022-02-15 03:39:10,628 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-15 03:39:10,628 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 4.0) internal successors, (28), 6 states have internal predecessors, (28), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 35
[2022-02-15 03:39:10,629 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-15 03:39:10,629 INFO L225 Difference]: With dead ends: 180
[2022-02-15 03:39:10,629 INFO L226 Difference]: Without dead ends: 116
[2022-02-15 03:39:10,630 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132
[2022-02-15 03:39:10,630 INFO L933 BasicCegarLoop]: 40 mSDtfsCounter, 125 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 200 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 127 SdHoareTripleChecker+Valid, 62 SdHoareTripleChecker+Invalid, 227 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 200 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-15 03:39:10,631 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [127 Valid, 62 Invalid, 227 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 200 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-15 03:39:10,631 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 116 states.
[2022-02-15 03:39:10,649 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 116 to 86.
[2022-02-15 03:39:10,650 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 86 states, 74 states have (on average 1.2432432432432432) internal successors, (92), 75 states have internal predecessors, (92), 7 states have call successors, (7), 6 states have call predecessors, (7), 4 states have return successors, (5), 4 states have call predecessors, (5), 5 states have call successors, (5)
[2022-02-15 03:39:10,650 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 86 states and 104 transitions.
[2022-02-15 03:39:10,651 INFO L78 Accepts]: Start accepts. Automaton has 86 states and 104 transitions. Word has length 35
[2022-02-15 03:39:10,651 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-15 03:39:10,651 INFO L470 AbstractCegarLoop]: Abstraction has 86 states and 104 transitions.
[2022-02-15 03:39:10,651 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 4.0) internal successors, (28), 6 states have internal predecessors, (28), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2)
[2022-02-15 03:39:10,651 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 104 transitions.
[2022-02-15 03:39:10,652 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39
[2022-02-15 03:39:10,652 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-15 03:39:10,652 INFO L514 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-15 03:39:10,652 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5
[2022-02-15 03:39:10,652 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2022-02-15 03:39:10,652 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-15 03:39:10,652 INFO L85 PathProgramCache]: Analyzing trace with hash -1949287377, now seen corresponding path program 1 times
[2022-02-15 03:39:10,652 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2022-02-15 03:39:10,652 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [715352925]
[2022-02-15 03:39:10,652 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-15 03:39:10,661 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays.
[2022-02-15 03:39:10,661 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-15 03:39:10,662 INFO L274 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation
[2022-02-15 03:39:10,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-15 03:39:10,725 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2022-02-15 03:39:10,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-15 03:39:10,732 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29
[2022-02-15 03:39:10,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-15 03:39:10,738 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-15 03:39:10,739 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace
[2022-02-15 03:39:10,739 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [715352925]
[2022-02-15 03:39:10,739 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [715352925] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-15 03:39:10,739 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-15 03:39:10,739 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9
[2022-02-15 03:39:10,739 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [914343221]
[2022-02-15 03:39:10,739 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-15 03:39:10,740 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states
[2022-02-15 03:39:10,740 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2022-02-15 03:39:10,740 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants.
[2022-02-15 03:39:10,740 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72
[2022-02-15 03:39:10,740 INFO L87 Difference]: Start difference. First operand 86 states and 104 transitions. Second operand has 9 states, 9 states have (on average 3.3333333333333335) internal successors, (30), 7 states have internal predecessors, (30), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2)
[2022-02-15 03:39:11,018 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-15 03:39:11,019 INFO L93 Difference]: Finished difference Result 163 states and 204 transitions.
[2022-02-15 03:39:11,019 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states.
[2022-02-15 03:39:11,019 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 3.3333333333333335) internal successors, (30), 7 states have internal predecessors, (30), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 38
[2022-02-15 03:39:11,019 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-15 03:39:11,020 INFO L225 Difference]: With dead ends: 163
[2022-02-15 03:39:11,020 INFO L226 Difference]: Without dead ends: 119
[2022-02-15 03:39:11,021 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=64, Invalid=208, Unknown=0, NotChecked=0, Total=272
[2022-02-15 03:39:11,021 INFO L933 BasicCegarLoop]: 59 mSDtfsCounter, 195 mSDsluCounter, 27 mSDsCounter, 0 mSdLazyCounter, 355 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 197 SdHoareTripleChecker+Valid, 86 SdHoareTripleChecker+Invalid, 391 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 355 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time
[2022-02-15 03:39:11,022 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [197 Valid, 86 Invalid, 391 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 355 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time]
[2022-02-15 03:39:11,022 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 119 states.
[2022-02-15 03:39:11,059 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 119 to 98.
[2022-02-15 03:39:11,060 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 98 states, 86 states have (on average 1.2674418604651163) internal successors, (109), 87 states have internal predecessors, (109), 7 states have call successors, (7), 6 states have call predecessors, (7), 4 states have return successors, (5), 4 states have call predecessors, (5), 5 states have call successors, (5)
[2022-02-15 03:39:11,060 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 98 states and 121 transitions.
[2022-02-15 03:39:11,061 INFO L78 Accepts]: Start accepts. Automaton has 98 states and 121 transitions. Word has length 38
[2022-02-15 03:39:11,061 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-15 03:39:11,061 INFO L470 AbstractCegarLoop]: Abstraction has 98 states and 121 transitions.
[2022-02-15 03:39:11,061 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 3.3333333333333335) internal successors, (30), 7 states have internal predecessors, (30), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2)
[2022-02-15 03:39:11,061 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states and 121 transitions.
[2022-02-15 03:39:11,061 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41
[2022-02-15 03:39:11,061 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-15 03:39:11,062 INFO L514 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-15 03:39:11,062 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6
[2022-02-15 03:39:11,062 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2022-02-15 03:39:11,062 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-15 03:39:11,062 INFO L85 PathProgramCache]: Analyzing trace with hash -1669063770, now seen corresponding path program 1 times
[2022-02-15 03:39:11,062 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2022-02-15 03:39:11,062 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1727925666]
[2022-02-15 03:39:11,062 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-15 03:39:11,064 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays.
[2022-02-15 03:39:11,064 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-15 03:39:11,065 INFO L274 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation
[2022-02-15 03:39:11,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-15 03:39:11,109 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2022-02-15 03:39:11,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-15 03:39:11,116 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31
[2022-02-15 03:39:11,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-15 03:39:11,120 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-15 03:39:11,120 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace
[2022-02-15 03:39:11,120 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1727925666]
[2022-02-15 03:39:11,120 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [1727925666] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-15 03:39:11,120 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-15 03:39:11,120 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8
[2022-02-15 03:39:11,120 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1660996391]
[2022-02-15 03:39:11,120 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-15 03:39:11,121 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-15 03:39:11,121 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2022-02-15 03:39:11,121 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-15 03:39:11,122 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56
[2022-02-15 03:39:11,122 INFO L87 Difference]: Start difference. First operand 98 states and 121 transitions. Second operand has 8 states, 8 states have (on average 4.125) internal successors, (33), 7 states have internal predecessors, (33), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2)
[2022-02-15 03:39:11,305 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-15 03:39:11,306 INFO L93 Difference]: Finished difference Result 243 states and 304 transitions.
[2022-02-15 03:39:11,306 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states.
[2022-02-15 03:39:11,306 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 4.125) internal successors, (33), 7 states have internal predecessors, (33), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 40
[2022-02-15 03:39:11,306 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-15 03:39:11,307 INFO L225 Difference]: With dead ends: 243
[2022-02-15 03:39:11,307 INFO L226 Difference]: Without dead ends: 173
[2022-02-15 03:39:11,308 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=69, Invalid=141, Unknown=0, NotChecked=0, Total=210
[2022-02-15 03:39:11,308 INFO L933 BasicCegarLoop]: 40 mSDtfsCounter, 202 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 208 mSolverCounterSat, 45 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 204 SdHoareTripleChecker+Valid, 57 SdHoareTripleChecker+Invalid, 253 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 208 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-15 03:39:11,308 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [204 Valid, 57 Invalid, 253 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 208 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-15 03:39:11,309 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 173 states.
[2022-02-15 03:39:11,332 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 173 to 135.
[2022-02-15 03:39:11,333 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 135 states, 121 states have (on average 1.2314049586776858) internal successors, (149), 122 states have internal predecessors, (149), 9 states have call successors, (9), 6 states have call predecessors, (9), 4 states have return successors, (7), 6 states have call predecessors, (7), 7 states have call successors, (7)
[2022-02-15 03:39:11,334 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 135 states to 135 states and 165 transitions.
[2022-02-15 03:39:11,335 INFO L78 Accepts]: Start accepts. Automaton has 135 states and 165 transitions. Word has length 40
[2022-02-15 03:39:11,335 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-15 03:39:11,335 INFO L470 AbstractCegarLoop]: Abstraction has 135 states and 165 transitions.
[2022-02-15 03:39:11,335 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 4.125) internal successors, (33), 7 states have internal predecessors, (33), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2)
[2022-02-15 03:39:11,335 INFO L276 IsEmpty]: Start isEmpty. Operand 135 states and 165 transitions.
[2022-02-15 03:39:11,336 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46
[2022-02-15 03:39:11,336 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-15 03:39:11,336 INFO L514 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-15 03:39:11,337 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7
[2022-02-15 03:39:11,337 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2022-02-15 03:39:11,337 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-15 03:39:11,337 INFO L85 PathProgramCache]: Analyzing trace with hash -1571153886, now seen corresponding path program 2 times
[2022-02-15 03:39:11,337 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2022-02-15 03:39:11,337 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [104268238]
[2022-02-15 03:39:11,337 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-15 03:39:11,340 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays.
[2022-02-15 03:39:11,340 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-15 03:39:11,342 INFO L274 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation
[2022-02-15 03:39:11,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-15 03:39:11,434 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2022-02-15 03:39:11,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-15 03:39:11,437 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36
[2022-02-15 03:39:11,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-15 03:39:11,441 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-15 03:39:11,441 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace
[2022-02-15 03:39:11,441 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [104268238]
[2022-02-15 03:39:11,441 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [104268238] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-15 03:39:11,441 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-15 03:39:11,441 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11
[2022-02-15 03:39:11,441 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [353259710]
[2022-02-15 03:39:11,441 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-15 03:39:11,442 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states
[2022-02-15 03:39:11,442 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2022-02-15 03:39:11,442 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants.
[2022-02-15 03:39:11,442 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110
[2022-02-15 03:39:11,442 INFO L87 Difference]: Start difference. First operand 135 states and 165 transitions. Second operand has 11 states, 11 states have (on average 3.4545454545454546) internal successors, (38), 9 states have internal predecessors, (38), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2)
[2022-02-15 03:39:11,786 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-15 03:39:11,787 INFO L93 Difference]: Finished difference Result 218 states and 270 transitions.
[2022-02-15 03:39:11,787 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states.
[2022-02-15 03:39:11,787 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 3.4545454545454546) internal successors, (38), 9 states have internal predecessors, (38), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 45
[2022-02-15 03:39:11,787 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-15 03:39:11,789 INFO L225 Difference]: With dead ends: 218
[2022-02-15 03:39:11,789 INFO L226 Difference]: Without dead ends: 216
[2022-02-15 03:39:11,789 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=95, Invalid=285, Unknown=0, NotChecked=0, Total=380
[2022-02-15 03:39:11,790 INFO L933 BasicCegarLoop]: 32 mSDtfsCounter, 305 mSDsluCounter, 32 mSDsCounter, 0 mSdLazyCounter, 425 mSolverCounterSat, 70 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 307 SdHoareTripleChecker+Valid, 64 SdHoareTripleChecker+Invalid, 495 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 70 IncrementalHoareTripleChecker+Valid, 425 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time
[2022-02-15 03:39:11,791 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [307 Valid, 64 Invalid, 495 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [70 Valid, 425 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time]
[2022-02-15 03:39:11,791 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 216 states.
[2022-02-15 03:39:11,814 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 216 to 174.
[2022-02-15 03:39:11,815 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 174 states, 157 states have (on average 1.267515923566879) internal successors, (199), 159 states have internal predecessors, (199), 11 states have call successors, (11), 7 states have call predecessors, (11), 5 states have return successors, (9), 7 states have call predecessors, (9), 9 states have call successors, (9)
[2022-02-15 03:39:11,816 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 174 states to 174 states and 219 transitions.
[2022-02-15 03:39:11,816 INFO L78 Accepts]: Start accepts. Automaton has 174 states and 219 transitions. Word has length 45
[2022-02-15 03:39:11,816 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-15 03:39:11,816 INFO L470 AbstractCegarLoop]: Abstraction has 174 states and 219 transitions.
[2022-02-15 03:39:11,816 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 3.4545454545454546) internal successors, (38), 9 states have internal predecessors, (38), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2)
[2022-02-15 03:39:11,816 INFO L276 IsEmpty]: Start isEmpty. Operand 174 states and 219 transitions.
[2022-02-15 03:39:11,817 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46
[2022-02-15 03:39:11,817 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-15 03:39:11,817 INFO L514 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-15 03:39:11,817 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8
[2022-02-15 03:39:11,817 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2022-02-15 03:39:11,818 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-15 03:39:11,818 INFO L85 PathProgramCache]: Analyzing trace with hash -870089308, now seen corresponding path program 1 times
[2022-02-15 03:39:11,818 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2022-02-15 03:39:11,818 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [232068220]
[2022-02-15 03:39:11,818 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-15 03:39:11,820 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays.
[2022-02-15 03:39:11,820 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-15 03:39:11,822 INFO L274 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation
[2022-02-15 03:39:11,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2022-02-15 03:39:11,846 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2022-02-15 03:39:11,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2022-02-15 03:39:11,876 INFO L138 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace
[2022-02-15 03:39:11,876 INFO L628 BasicCegarLoop]: Counterexample is feasible
[2022-02-15 03:39:11,880 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining)
[2022-02-15 03:39:11,891 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9
[2022-02-15 03:39:11,893 INFO L732 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-15 03:39:11,896 INFO L180 ceAbstractionStarter]: Computing trace abstraction results
[2022-02-15 03:39:11,907 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.02 03:39:11 BoogieIcfgContainer
[2022-02-15 03:39:11,908 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2022-02-15 03:39:11,908 INFO L158 Benchmark]: Toolchain (without parser) took 4165.22ms. Allocated memory was 196.1MB in the beginning and 242.2MB in the end (delta: 46.1MB). Free memory was 146.8MB in the beginning and 217.2MB in the end (delta: -70.4MB). Peak memory consumption was 111.2MB. Max. memory is 8.0GB.
[2022-02-15 03:39:11,908 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 196.1MB. Free memory was 163.3MB in the beginning and 163.2MB in the end (delta: 151.9kB). There was no memory consumed. Max. memory is 8.0GB.
[2022-02-15 03:39:11,909 INFO L158 Benchmark]: CACSL2BoogieTranslator took 334.61ms. Allocated memory is still 196.1MB. Free memory was 146.7MB in the beginning and 170.5MB in the end (delta: -23.9MB). Peak memory consumption was 9.5MB. Max. memory is 8.0GB.
[2022-02-15 03:39:11,909 INFO L158 Benchmark]: Boogie Preprocessor took 45.90ms. Allocated memory is still 196.1MB. Free memory was 170.5MB in the beginning and 168.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB.
[2022-02-15 03:39:11,909 INFO L158 Benchmark]: RCFGBuilder took 376.16ms. Allocated memory is still 196.1MB. Free memory was 168.4MB in the beginning and 152.7MB in the end (delta: 15.7MB). Peak memory consumption was 15.7MB. Max. memory is 8.0GB.
[2022-02-15 03:39:11,909 INFO L158 Benchmark]: TraceAbstraction took 3401.82ms. Allocated memory was 196.1MB in the beginning and 242.2MB in the end (delta: 46.1MB). Free memory was 152.7MB in the beginning and 217.2MB in the end (delta: -64.5MB). Peak memory consumption was 117.4MB. Max. memory is 8.0GB.
[2022-02-15 03:39:11,910 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] #######################
--- Results ---
* Results from de.uni_freiburg.informatik.ultimate.core:
- StatisticsResult: Toolchain Benchmarks
Benchmark results are:
* CDTParser took 0.11ms. Allocated memory is still 196.1MB. Free memory was 163.3MB in the beginning and 163.2MB in the end (delta: 151.9kB). There was no memory consumed. Max. memory is 8.0GB.
* CACSL2BoogieTranslator took 334.61ms. Allocated memory is still 196.1MB. Free memory was 146.7MB in the beginning and 170.5MB in the end (delta: -23.9MB). Peak memory consumption was 9.5MB. Max. memory is 8.0GB.
* Boogie Preprocessor took 45.90ms. Allocated memory is still 196.1MB. Free memory was 170.5MB in the beginning and 168.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB.
* RCFGBuilder took 376.16ms. Allocated memory is still 196.1MB. Free memory was 168.4MB in the beginning and 152.7MB in the end (delta: 15.7MB). Peak memory consumption was 15.7MB. Max. memory is 8.0GB.
* TraceAbstraction took 3401.82ms. Allocated memory was 196.1MB in the beginning and 242.2MB in the end (delta: 46.1MB). Free memory was 152.7MB in the beginning and 217.2MB in the end (delta: -64.5MB). Peak memory consumption was 117.4MB. Max. memory is 8.0GB.
* 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
- CounterExampleResult [Line: 15]: a call to reach_error is reachable
a call to reach_error is reachable
We found a FailurePath:
[L85] char A [2 + 2 + 4 +1];
[L86] A[2 + 2 + 4] = 0
[L87] CALL parse_expression_list (A)
[L59] int start=0, i=-1, j=-1;
[L60] char str2[2];
[L61] COND FALSE !(!str)
[L63] i++
[L64] str[i]
[L65] case 0:
[L80] EXPR str[i]
[L80] COND TRUE str[i] != 0
[L63] i++
[L64] str[i]
[L65] case 0:
[L80] EXPR str[i]
[L80] COND TRUE str[i] != 0
[L63] i++
[L64] str[i]
[L65] case 0:
[L66] EXPR str[start]
[L66] (str[start] == ' ') || (str[start] == '\t')
[L66] EXPR str[start]
[L66] (str[start] == ' ') || (str[start] == '\t')
[L66] COND FALSE !((str[start] == ' ') || (str[start] == '\t'))
[L67] EXPR str[start]
[L67] COND FALSE !(str[start] == '"')
[L68] j = i-1
[L69] (0 < j) && ((str[j] == ' ') || (str[j] == '\t'))
[L69] EXPR str[j]
[L69] EXPR (str[j] == ' ') || (str[j] == '\t')
[L69] EXPR str[j]
[L69] EXPR (str[j] == ' ') || (str[j] == '\t')
[L69] (0 < j) && ((str[j] == ' ') || (str[j] == '\t'))
[L69] COND FALSE !((0 < j) && ((str[j] == ' ') || (str[j] == '\t')))
[L70] (0 < j) && (str[j] == '"')
[L70] EXPR str[j]
[L70] (0 < j) && (str[j] == '"')
[L70] COND FALSE !((0 < j) && (str[j] == '"'))
[L71] COND TRUE start<=j
[L72] CALL r_strncpy(str2, str+start, j-start+1)
[L41] return strncpy(dest,src,n);
[L72] RET r_strncpy(str2, str+start, j-start+1)
[L73] CALL __VERIFIER_assert(j - start + 1 < 2)
[L14] COND TRUE !(cond)
[L15] reach_error()
- StatisticsResult: Ultimate Automizer benchmark data
CFG has 7 procedures, 54 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 3.3s, OverallIterations: 10, TraceHistogramMax: 3, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 2.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1360 SdHoareTripleChecker+Valid, 1.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1341 mSDsluCounter, 593 SdHoareTripleChecker+Invalid, 1.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 174 mSDsCounter, 276 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 2010 IncrementalHoareTripleChecker+Invalid, 2286 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 276 mSolverCounterUnsat, 419 mSDtfsCounter, 2010 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 142 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 95 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 190 ImplicationChecksByTransitivity, 0.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=174occurred in iteration=9, InterpolantAutomatonStates: 74, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 9 MinimizatonAttempts, 206 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: No data available, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available
RESULT: Ultimate proved your program to be incorrect!
[2022-02-15 03:39:11,941 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...