/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/list-properties/simple-1.i
--------------------------------------------------------------------------------
This is Ultimate 0.2.0-7d8eed3
[2020-11-06 22:27:24,334 INFO L177 SettingsManager]: Resetting all preferences to default values...
[2020-11-06 22:27:24,337 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values
[2020-11-06 22:27:24,372 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2020-11-06 22:27:24,372 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2020-11-06 22:27:24,374 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2020-11-06 22:27:24,376 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2020-11-06 22:27:24,378 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values
[2020-11-06 22:27:24,380 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values
[2020-11-06 22:27:24,381 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values
[2020-11-06 22:27:24,382 INFO L181 SettingsManager]: Resetting Sifa preferences to default values
[2020-11-06 22:27:24,384 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2020-11-06 22:27:24,384 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values
[2020-11-06 22:27:24,386 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values
[2020-11-06 22:27:24,387 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2020-11-06 22:27:24,388 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values
[2020-11-06 22:27:24,389 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2020-11-06 22:27:24,391 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2020-11-06 22:27:24,404 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2020-11-06 22:27:24,407 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values
[2020-11-06 22:27:24,414 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2020-11-06 22:27:24,416 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values
[2020-11-06 22:27:24,418 INFO L181 SettingsManager]: Resetting Referee preferences to default values
[2020-11-06 22:27:24,419 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values
[2020-11-06 22:27:24,427 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2020-11-06 22:27:24,427 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2020-11-06 22:27:24,428 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values
[2020-11-06 22:27:24,429 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values
[2020-11-06 22:27:24,432 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values
[2020-11-06 22:27:24,434 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring...
[2020-11-06 22:27:24,434 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values
[2020-11-06 22:27:24,435 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values
[2020-11-06 22:27:24,437 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values
[2020-11-06 22:27:24,439 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values
[2020-11-06 22:27:24,440 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2020-11-06 22:27:24,440 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values
[2020-11-06 22:27:24,442 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring...
[2020-11-06 22:27:24,442 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring...
[2020-11-06 22:27:24,442 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values
[2020-11-06 22:27:24,443 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values
[2020-11-06 22:27:24,444 INFO L188 SettingsManager]: Finished resetting all preferences to default values...
[2020-11-06 22:27:24,445 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf
[2020-11-06 22:27:24,495 INFO L113 SettingsManager]: Loading preferences was successful
[2020-11-06 22:27:24,495 INFO L115 SettingsManager]: Preferences different from defaults after loading the file:
[2020-11-06 22:27:24,499 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2020-11-06 22:27:24,500 INFO L138 SettingsManager]: * Create parallel compositions if possible=false
[2020-11-06 22:27:24,500 INFO L138 SettingsManager]: * Use SBE=true
[2020-11-06 22:27:24,500 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2020-11-06 22:27:24,500 INFO L138 SettingsManager]: * sizeof long=4
[2020-11-06 22:27:24,500 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true
[2020-11-06 22:27:24,501 INFO L138 SettingsManager]: * sizeof POINTER=4
[2020-11-06 22:27:24,501 INFO L138 SettingsManager]: * Check division by zero=IGNORE
[2020-11-06 22:27:24,502 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE
[2020-11-06 22:27:24,502 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE
[2020-11-06 22:27:24,502 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE
[2020-11-06 22:27:24,502 INFO L138 SettingsManager]: * sizeof long double=12
[2020-11-06 22:27:24,502 INFO L138 SettingsManager]: * Check if freed pointer was valid=false
[2020-11-06 22:27:24,503 INFO L138 SettingsManager]: * Use constant arrays=true
[2020-11-06 22:27:24,503 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE
[2020-11-06 22:27:24,503 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2020-11-06 22:27:24,503 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements
[2020-11-06 22:27:24,503 INFO L138 SettingsManager]: * To the following directory=./dump/
[2020-11-06 22:27:24,504 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode
[2020-11-06 22:27:24,504 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2020-11-06 22:27:24,504 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2020-11-06 22:27:24,504 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP
[2020-11-06 22:27:24,504 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2020-11-06 22:27:24,505 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL
[2020-11-06 22:27:24,505 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2020-11-06 22:27:24,505 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2020-11-06 22:27:24,505 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE
[2020-11-06 22:27:24,505 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode
WARNING: An illegal reflective access operation has occurred
WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int)
WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
[2020-11-06 22:27:24,875 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp
[2020-11-06 22:27:24,924 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2020-11-06 22:27:24,927 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2020-11-06 22:27:24,928 INFO L271 PluginConnector]: Initializing CDTParser...
[2020-11-06 22:27:24,930 INFO L275 PluginConnector]: CDTParser initialized
[2020-11-06 22:27:24,931 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/list-properties/simple-1.i
[2020-11-06 22:27:25,008 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ea122ddec/45d4f44dedc246c48e28e9bba0118cf4/FLAGc62d95971
[2020-11-06 22:27:25,626 INFO L306 CDTParser]: Found 1 translation units.
[2020-11-06 22:27:25,627 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/list-properties/simple-1.i
[2020-11-06 22:27:25,646 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ea122ddec/45d4f44dedc246c48e28e9bba0118cf4/FLAGc62d95971
[2020-11-06 22:27:25,948 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ea122ddec/45d4f44dedc246c48e28e9bba0118cf4
[2020-11-06 22:27:25,951 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2020-11-06 22:27:25,958 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements.
[2020-11-06 22:27:25,959 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2020-11-06 22:27:25,959 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator...
[2020-11-06 22:27:25,963 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized
[2020-11-06 22:27:25,964 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:27:25" (1/1) ...
[2020-11-06 22:27:25,968 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7e098116 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:27:25, skipping insertion in model container
[2020-11-06 22:27:25,968 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:27:25" (1/1) ...
[2020-11-06 22:27:25,976 INFO L145 MainTranslator]: Starting translation in SV-COMP mode
[2020-11-06 22:27:26,023 INFO L178 MainTranslator]: Built tables and reachable declarations
[2020-11-06 22:27:26,301 INFO L206 PostProcessor]: Analyzing one entry point: main
[2020-11-06 22:27:26,310 INFO L203 MainTranslator]: Completed pre-run
[2020-11-06 22:27:26,355 INFO L206 PostProcessor]: Analyzing one entry point: main
[2020-11-06 22:27:26,426 INFO L208 MainTranslator]: Completed translation
[2020-11-06 22:27:26,428 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:27:26 WrapperNode
[2020-11-06 22:27:26,428 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2020-11-06 22:27:26,429 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2020-11-06 22:27:26,429 INFO L271 PluginConnector]: Initializing Boogie Preprocessor...
[2020-11-06 22:27:26,429 INFO L275 PluginConnector]: Boogie Preprocessor initialized
[2020-11-06 22:27:26,441 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:27:26" (1/1) ...
[2020-11-06 22:27:26,443 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:27:26" (1/1) ...
[2020-11-06 22:27:26,460 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:27:26" (1/1) ...
[2020-11-06 22:27:26,460 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:27:26" (1/1) ...
[2020-11-06 22:27:26,477 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:27:26" (1/1) ...
[2020-11-06 22:27:26,482 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:27:26" (1/1) ...
[2020-11-06 22:27:26,485 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:27:26" (1/1) ...
[2020-11-06 22:27:26,491 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2020-11-06 22:27:26,492 INFO L113 PluginConnector]: ------------------------RCFGBuilder----------------------------
[2020-11-06 22:27:26,493 INFO L271 PluginConnector]: Initializing RCFGBuilder...
[2020-11-06 22:27:26,493 INFO L275 PluginConnector]: RCFGBuilder initialized
[2020-11-06 22:27:26,494 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:27:26" (1/1) ...
No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null)
Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2020-11-06 22:27:26,584 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init
[2020-11-06 22:27:26,584 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2020-11-06 22:27:26,584 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error
[2020-11-06 22:27:26,585 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32
[2020-11-06 22:27:26,585 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64
[2020-11-06 22:27:26,585 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint16_identity
[2020-11-06 22:27:26,585 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint32_identity
[2020-11-06 22:27:26,585 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint64_identity
[2020-11-06 22:27:26,585 INFO L138 BoogieDeclarations]: Found implementation of procedure myexit
[2020-11-06 22:27:26,585 INFO L138 BoogieDeclarations]: Found implementation of procedure main
[2020-11-06 22:27:26,586 INFO L130 BoogieDeclarations]: Found specification of procedure abort
[2020-11-06 22:27:26,586 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail
[2020-11-06 22:27:26,586 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_perror_fail
[2020-11-06 22:27:26,586 INFO L130 BoogieDeclarations]: Found specification of procedure __assert
[2020-11-06 22:27:26,586 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error
[2020-11-06 22:27:26,586 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack
[2020-11-06 22:27:26,587 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int
[2020-11-06 22:27:26,587 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max
[2020-11-06 22:27:26,587 INFO L130 BoogieDeclarations]: Found specification of procedure atof
[2020-11-06 22:27:26,587 INFO L130 BoogieDeclarations]: Found specification of procedure atoi
[2020-11-06 22:27:26,587 INFO L130 BoogieDeclarations]: Found specification of procedure atol
[2020-11-06 22:27:26,587 INFO L130 BoogieDeclarations]: Found specification of procedure atoll
[2020-11-06 22:27:26,588 INFO L130 BoogieDeclarations]: Found specification of procedure strtod
[2020-11-06 22:27:26,588 INFO L130 BoogieDeclarations]: Found specification of procedure strtof
[2020-11-06 22:27:26,588 INFO L130 BoogieDeclarations]: Found specification of procedure strtold
[2020-11-06 22:27:26,588 INFO L130 BoogieDeclarations]: Found specification of procedure strtol
[2020-11-06 22:27:26,588 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul
[2020-11-06 22:27:26,588 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq
[2020-11-06 22:27:26,588 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq
[2020-11-06 22:27:26,589 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll
[2020-11-06 22:27:26,589 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull
[2020-11-06 22:27:26,589 INFO L130 BoogieDeclarations]: Found specification of procedure l64a
[2020-11-06 22:27:26,589 INFO L130 BoogieDeclarations]: Found specification of procedure a64l
[2020-11-06 22:27:26,589 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32
[2020-11-06 22:27:26,589 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64
[2020-11-06 22:27:26,589 INFO L130 BoogieDeclarations]: Found specification of procedure __uint16_identity
[2020-11-06 22:27:26,590 INFO L130 BoogieDeclarations]: Found specification of procedure __uint32_identity
[2020-11-06 22:27:26,590 INFO L130 BoogieDeclarations]: Found specification of procedure __uint64_identity
[2020-11-06 22:27:26,590 INFO L130 BoogieDeclarations]: Found specification of procedure select
[2020-11-06 22:27:26,590 INFO L130 BoogieDeclarations]: Found specification of procedure pselect
[2020-11-06 22:27:26,590 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major
[2020-11-06 22:27:26,590 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor
[2020-11-06 22:27:26,590 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev
[2020-11-06 22:27:26,591 INFO L130 BoogieDeclarations]: Found specification of procedure random
[2020-11-06 22:27:26,591 INFO L130 BoogieDeclarations]: Found specification of procedure srandom
[2020-11-06 22:27:26,591 INFO L130 BoogieDeclarations]: Found specification of procedure initstate
[2020-11-06 22:27:26,591 INFO L130 BoogieDeclarations]: Found specification of procedure setstate
[2020-11-06 22:27:26,591 INFO L130 BoogieDeclarations]: Found specification of procedure random_r
[2020-11-06 22:27:26,591 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r
[2020-11-06 22:27:26,591 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r
[2020-11-06 22:27:26,592 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r
[2020-11-06 22:27:26,592 INFO L130 BoogieDeclarations]: Found specification of procedure rand
[2020-11-06 22:27:26,592 INFO L130 BoogieDeclarations]: Found specification of procedure srand
[2020-11-06 22:27:26,592 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r
[2020-11-06 22:27:26,592 INFO L130 BoogieDeclarations]: Found specification of procedure drand48
[2020-11-06 22:27:26,592 INFO L130 BoogieDeclarations]: Found specification of procedure erand48
[2020-11-06 22:27:26,592 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48
[2020-11-06 22:27:26,592 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48
[2020-11-06 22:27:26,593 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48
[2020-11-06 22:27:26,593 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48
[2020-11-06 22:27:26,593 INFO L130 BoogieDeclarations]: Found specification of procedure srand48
[2020-11-06 22:27:26,593 INFO L130 BoogieDeclarations]: Found specification of procedure seed48
[2020-11-06 22:27:26,593 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48
[2020-11-06 22:27:26,593 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r
[2020-11-06 22:27:26,594 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r
[2020-11-06 22:27:26,594 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r
[2020-11-06 22:27:26,594 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r
[2020-11-06 22:27:26,594 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r
[2020-11-06 22:27:26,594 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r
[2020-11-06 22:27:26,594 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r
[2020-11-06 22:27:26,595 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r
[2020-11-06 22:27:26,595 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r
[2020-11-06 22:27:26,595 INFO L130 BoogieDeclarations]: Found specification of procedure malloc
[2020-11-06 22:27:26,595 INFO L130 BoogieDeclarations]: Found specification of procedure calloc
[2020-11-06 22:27:26,595 INFO L130 BoogieDeclarations]: Found specification of procedure realloc
[2020-11-06 22:27:26,595 INFO L130 BoogieDeclarations]: Found specification of procedure free
[2020-11-06 22:27:26,595 INFO L130 BoogieDeclarations]: Found specification of procedure alloca
[2020-11-06 22:27:26,596 INFO L130 BoogieDeclarations]: Found specification of procedure valloc
[2020-11-06 22:27:26,596 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign
[2020-11-06 22:27:26,596 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc
[2020-11-06 22:27:26,596 INFO L130 BoogieDeclarations]: Found specification of procedure atexit
[2020-11-06 22:27:26,596 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit
[2020-11-06 22:27:26,596 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit
[2020-11-06 22:27:26,596 INFO L130 BoogieDeclarations]: Found specification of procedure exit
[2020-11-06 22:27:26,597 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit
[2020-11-06 22:27:26,597 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit
[2020-11-06 22:27:26,597 INFO L130 BoogieDeclarations]: Found specification of procedure getenv
[2020-11-06 22:27:26,597 INFO L130 BoogieDeclarations]: Found specification of procedure putenv
[2020-11-06 22:27:26,597 INFO L130 BoogieDeclarations]: Found specification of procedure setenv
[2020-11-06 22:27:26,597 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv
[2020-11-06 22:27:26,597 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv
[2020-11-06 22:27:26,598 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp
[2020-11-06 22:27:26,598 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp
[2020-11-06 22:27:26,598 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps
[2020-11-06 22:27:26,598 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp
[2020-11-06 22:27:26,598 INFO L130 BoogieDeclarations]: Found specification of procedure system
[2020-11-06 22:27:26,598 INFO L130 BoogieDeclarations]: Found specification of procedure realpath
[2020-11-06 22:27:26,599 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch
[2020-11-06 22:27:26,599 INFO L130 BoogieDeclarations]: Found specification of procedure qsort
[2020-11-06 22:27:26,599 INFO L130 BoogieDeclarations]: Found specification of procedure abs
[2020-11-06 22:27:26,599 INFO L130 BoogieDeclarations]: Found specification of procedure labs
[2020-11-06 22:27:26,599 INFO L130 BoogieDeclarations]: Found specification of procedure llabs
[2020-11-06 22:27:26,599 INFO L130 BoogieDeclarations]: Found specification of procedure div
[2020-11-06 22:27:26,599 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv
[2020-11-06 22:27:26,600 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv
[2020-11-06 22:27:26,600 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt
[2020-11-06 22:27:26,600 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt
[2020-11-06 22:27:26,600 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt
[2020-11-06 22:27:26,600 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt
[2020-11-06 22:27:26,600 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt
[2020-11-06 22:27:26,600 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt
[2020-11-06 22:27:26,601 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r
[2020-11-06 22:27:26,601 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r
[2020-11-06 22:27:26,601 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r
[2020-11-06 22:27:26,601 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r
[2020-11-06 22:27:26,601 INFO L130 BoogieDeclarations]: Found specification of procedure mblen
[2020-11-06 22:27:26,601 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc
[2020-11-06 22:27:26,601 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb
[2020-11-06 22:27:26,602 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs
[2020-11-06 22:27:26,602 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs
[2020-11-06 22:27:26,602 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch
[2020-11-06 22:27:26,602 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt
[2020-11-06 22:27:26,602 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg
[2020-11-06 22:27:26,602 INFO L130 BoogieDeclarations]: Found specification of procedure myexit
[2020-11-06 22:27:26,602 INFO L130 BoogieDeclarations]: Found specification of procedure main
[2020-11-06 22:27:26,603 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap
[2020-11-06 22:27:26,603 INFO L130 BoogieDeclarations]: Found specification of procedure write~int
[2020-11-06 22:27:26,603 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$
[2020-11-06 22:27:26,603 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$
[2020-11-06 22:27:26,603 INFO L130 BoogieDeclarations]: Found specification of procedure read~int
[2020-11-06 22:27:26,603 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init
[2020-11-06 22:27:26,604 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int
[2020-11-06 22:27:26,604 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2020-11-06 22:27:26,604 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2020-11-06 22:27:26,986 INFO L751 $ProcedureCfgBuilder]: dead code at ProgramPoint myexitFINAL: assume true;
[2020-11-06 22:27:27,158 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2020-11-06 22:27:27,158 INFO L298 CfgBuilder]: Removed 2 assume(true) statements.
[2020-11-06 22:27:27,160 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:27:27 BoogieIcfgContainer
[2020-11-06 22:27:27,160 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2020-11-06 22:27:27,162 INFO L113 PluginConnector]: ------------------------TraceAbstraction----------------------------
[2020-11-06 22:27:27,162 INFO L271 PluginConnector]: Initializing TraceAbstraction...
[2020-11-06 22:27:27,165 INFO L275 PluginConnector]: TraceAbstraction initialized
[2020-11-06 22:27:27,166 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 10:27:25" (1/3) ...
[2020-11-06 22:27:27,166 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@373804da and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 10:27:27, skipping insertion in model container
[2020-11-06 22:27:27,167 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:27:26" (2/3) ...
[2020-11-06 22:27:27,167 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@373804da and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 10:27:27, skipping insertion in model container
[2020-11-06 22:27:27,167 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:27:27" (3/3) ...
[2020-11-06 22:27:27,169 INFO L111 eAbstractionObserver]: Analyzing ICFG simple-1.i
[2020-11-06 22:27:27,184 INFO L179 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2020-11-06 22:27:27,188 INFO L191 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations.
[2020-11-06 22:27:27,199 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2020-11-06 22:27:27,224 INFO L377 AbstractCegarLoop]: Interprodecural is true
[2020-11-06 22:27:27,224 INFO L378 AbstractCegarLoop]: Hoare is true
[2020-11-06 22:27:27,224 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP
[2020-11-06 22:27:27,224 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE
[2020-11-06 22:27:27,225 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION
[2020-11-06 22:27:27,225 INFO L382 AbstractCegarLoop]: Difference is false
[2020-11-06 22:27:27,225 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA
[2020-11-06 22:27:27,225 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce========
[2020-11-06 22:27:27,242 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states.
[2020-11-06 22:27:27,248 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16
[2020-11-06 22:27:27,248 INFO L414 BasicCegarLoop]: Found error trace
[2020-11-06 22:27:27,249 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-11-06 22:27:27,249 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-11-06 22:27:27,256 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-11-06 22:27:27,256 INFO L82 PathProgramCache]: Analyzing trace with hash 8074775, now seen corresponding path program 1 times
[2020-11-06 22:27:27,266 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2020-11-06 22:27:27,267 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1936259658]
[2020-11-06 22:27:27,267 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-11-06 22:27:27,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-11-06 22:27:27,510 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-11-06 22:27:27,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-11-06 22:27:27,550 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-11-06 22:27:27,551 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1936259658]
[2020-11-06 22:27:27,551 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-11-06 22:27:27,552 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2020-11-06 22:27:27,553 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [803833428]
[2020-11-06 22:27:27,558 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states
[2020-11-06 22:27:27,559 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2020-11-06 22:27:27,579 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2020-11-06 22:27:27,581 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2020-11-06 22:27:27,583 INFO L87 Difference]: Start difference. First operand 32 states. Second operand 3 states.
[2020-11-06 22:27:27,693 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-11-06 22:27:27,693 INFO L93 Difference]: Finished difference Result 45 states and 56 transitions.
[2020-11-06 22:27:27,694 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2020-11-06 22:27:27,695 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 15
[2020-11-06 22:27:27,696 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2020-11-06 22:27:27,703 INFO L225 Difference]: With dead ends: 45
[2020-11-06 22:27:27,704 INFO L226 Difference]: Without dead ends: 20
[2020-11-06 22:27:27,707 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2020-11-06 22:27:27,725 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states.
[2020-11-06 22:27:27,743 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 20.
[2020-11-06 22:27:27,744 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states.
[2020-11-06 22:27:27,745 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 21 transitions.
[2020-11-06 22:27:27,747 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 21 transitions. Word has length 15
[2020-11-06 22:27:27,747 INFO L84 Accepts]: Finished accepts. word is rejected.
[2020-11-06 22:27:27,748 INFO L481 AbstractCegarLoop]: Abstraction has 20 states and 21 transitions.
[2020-11-06 22:27:27,748 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states.
[2020-11-06 22:27:27,748 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 21 transitions.
[2020-11-06 22:27:27,749 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17
[2020-11-06 22:27:27,749 INFO L414 BasicCegarLoop]: Found error trace
[2020-11-06 22:27:27,749 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-11-06 22:27:27,749 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2020-11-06 22:27:27,750 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-11-06 22:27:27,751 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-11-06 22:27:27,751 INFO L82 PathProgramCache]: Analyzing trace with hash 76749922, now seen corresponding path program 1 times
[2020-11-06 22:27:27,751 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2020-11-06 22:27:27,751 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [153260734]
[2020-11-06 22:27:27,752 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-11-06 22:27:27,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-11-06 22:27:27,893 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-11-06 22:27:27,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-11-06 22:27:27,906 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-11-06 22:27:27,907 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [153260734]
[2020-11-06 22:27:27,907 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-11-06 22:27:27,907 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2020-11-06 22:27:27,908 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [783576497]
[2020-11-06 22:27:27,909 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states
[2020-11-06 22:27:27,909 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2020-11-06 22:27:27,910 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2020-11-06 22:27:27,911 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30
[2020-11-06 22:27:27,911 INFO L87 Difference]: Start difference. First operand 20 states and 21 transitions. Second operand 6 states.
[2020-11-06 22:27:28,064 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-11-06 22:27:28,065 INFO L93 Difference]: Finished difference Result 36 states and 39 transitions.
[2020-11-06 22:27:28,067 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states.
[2020-11-06 22:27:28,067 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 16
[2020-11-06 22:27:28,068 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2020-11-06 22:27:28,070 INFO L225 Difference]: With dead ends: 36
[2020-11-06 22:27:28,070 INFO L226 Difference]: Without dead ends: 32
[2020-11-06 22:27:28,072 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56
[2020-11-06 22:27:28,072 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states.
[2020-11-06 22:27:28,082 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 25.
[2020-11-06 22:27:28,082 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25 states.
[2020-11-06 22:27:28,087 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 27 transitions.
[2020-11-06 22:27:28,087 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 27 transitions. Word has length 16
[2020-11-06 22:27:28,087 INFO L84 Accepts]: Finished accepts. word is rejected.
[2020-11-06 22:27:28,087 INFO L481 AbstractCegarLoop]: Abstraction has 25 states and 27 transitions.
[2020-11-06 22:27:28,087 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states.
[2020-11-06 22:27:28,088 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 27 transitions.
[2020-11-06 22:27:28,090 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20
[2020-11-06 22:27:28,090 INFO L414 BasicCegarLoop]: Found error trace
[2020-11-06 22:27:28,090 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-11-06 22:27:28,090 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2020-11-06 22:27:28,090 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-11-06 22:27:28,091 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-11-06 22:27:28,091 INFO L82 PathProgramCache]: Analyzing trace with hash 1244663435, now seen corresponding path program 1 times
[2020-11-06 22:27:28,092 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2020-11-06 22:27:28,092 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [321082227]
[2020-11-06 22:27:28,092 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-11-06 22:27:28,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-11-06 22:27:28,272 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-11-06 22:27:28,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-11-06 22:27:28,284 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-11-06 22:27:28,284 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [321082227]
[2020-11-06 22:27:28,285 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [819900336]
[2020-11-06 22:27:28,285 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2020-11-06 22:27:28,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-11-06 22:27:28,415 INFO L263 TraceCheckSpWp]: Trace formula consists of 118 conjuncts, 19 conjunts are in the unsatisfiable core
[2020-11-06 22:27:28,421 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2020-11-06 22:27:28,496 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7
[2020-11-06 22:27:28,497 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts.
[2020-11-06 22:27:28,508 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2020-11-06 22:27:28,512 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7
[2020-11-06 22:27:28,512 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts.
[2020-11-06 22:27:28,519 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2020-11-06 22:27:28,519 INFO L547 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: and 1 xjuncts.
[2020-11-06 22:27:28,520 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:26, output treesize:18
[2020-11-06 22:27:28,551 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7
[2020-11-06 22:27:28,552 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts.
[2020-11-06 22:27:28,559 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2020-11-06 22:27:28,562 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7
[2020-11-06 22:27:28,562 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts.
[2020-11-06 22:27:28,567 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2020-11-06 22:27:28,567 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts.
[2020-11-06 22:27:28,568 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:29, output treesize:7
[2020-11-06 22:27:28,571 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-11-06 22:27:28,571 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences.
[2020-11-06 22:27:28,571 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 6] total 7
[2020-11-06 22:27:28,572 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [128718382]
[2020-11-06 22:27:28,572 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states
[2020-11-06 22:27:28,572 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2020-11-06 22:27:28,573 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2020-11-06 22:27:28,573 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42
[2020-11-06 22:27:28,573 INFO L87 Difference]: Start difference. First operand 25 states and 27 transitions. Second operand 7 states.
[2020-11-06 22:27:28,682 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-11-06 22:27:28,683 INFO L93 Difference]: Finished difference Result 40 states and 43 transitions.
[2020-11-06 22:27:28,683 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states.
[2020-11-06 22:27:28,683 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 19
[2020-11-06 22:27:28,684 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2020-11-06 22:27:28,684 INFO L225 Difference]: With dead ends: 40
[2020-11-06 22:27:28,684 INFO L226 Difference]: Without dead ends: 28
[2020-11-06 22:27:28,685 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 19 SyntacticMatches, 2 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72
[2020-11-06 22:27:28,686 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states.
[2020-11-06 22:27:28,690 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 22.
[2020-11-06 22:27:28,690 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states.
[2020-11-06 22:27:28,690 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 23 transitions.
[2020-11-06 22:27:28,691 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 23 transitions. Word has length 19
[2020-11-06 22:27:28,691 INFO L84 Accepts]: Finished accepts. word is rejected.
[2020-11-06 22:27:28,691 INFO L481 AbstractCegarLoop]: Abstraction has 22 states and 23 transitions.
[2020-11-06 22:27:28,691 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states.
[2020-11-06 22:27:28,691 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 23 transitions.
[2020-11-06 22:27:28,692 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21
[2020-11-06 22:27:28,692 INFO L414 BasicCegarLoop]: Found error trace
[2020-11-06 22:27:28,692 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-11-06 22:27:28,903 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2
[2020-11-06 22:27:28,904 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-11-06 22:27:28,904 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-11-06 22:27:28,904 INFO L82 PathProgramCache]: Analyzing trace with hash 927183817, now seen corresponding path program 1 times
[2020-11-06 22:27:28,904 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2020-11-06 22:27:28,905 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1958854163]
[2020-11-06 22:27:28,905 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-11-06 22:27:28,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2020-11-06 22:27:28,933 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2020-11-06 22:27:28,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2020-11-06 22:27:28,974 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2020-11-06 22:27:29,025 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2020-11-06 22:27:29,025 INFO L523 BasicCegarLoop]: Counterexample might be feasible
[2020-11-06 22:27:29,025 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3
[2020-11-06 22:27:29,076 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.11 10:27:29 BoogieIcfgContainer
[2020-11-06 22:27:29,077 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2020-11-06 22:27:29,079 INFO L168 Benchmark]: Toolchain (without parser) took 3125.30 ms. Allocated memory was 152.0 MB in the beginning and 183.5 MB in the end (delta: 31.5 MB). Free memory was 125.7 MB in the beginning and 78.0 MB in the end (delta: 47.7 MB). Peak memory consumption was 79.9 MB. Max. memory is 8.0 GB.
[2020-11-06 22:27:29,080 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 152.0 MB. Free memory is still 123.8 MB. There was no memory consumed. Max. memory is 8.0 GB.
[2020-11-06 22:27:29,082 INFO L168 Benchmark]: CACSL2BoogieTranslator took 469.09 ms. Allocated memory is still 152.0 MB. Free memory was 125.0 MB in the beginning and 103.4 MB in the end (delta: 21.6 MB). Peak memory consumption was 22.0 MB. Max. memory is 8.0 GB.
[2020-11-06 22:27:29,084 INFO L168 Benchmark]: Boogie Preprocessor took 62.70 ms. Allocated memory is still 152.0 MB. Free memory was 103.4 MB in the beginning and 101.0 MB in the end (delta: 2.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB.
[2020-11-06 22:27:29,089 INFO L168 Benchmark]: RCFGBuilder took 667.73 ms. Allocated memory is still 152.0 MB. Free memory was 100.8 MB in the beginning and 95.5 MB in the end (delta: 5.3 MB). Peak memory consumption was 6.8 MB. Max. memory is 8.0 GB.
[2020-11-06 22:27:29,090 INFO L168 Benchmark]: TraceAbstraction took 1915.14 ms. Allocated memory was 152.0 MB in the beginning and 183.5 MB in the end (delta: 31.5 MB). Free memory was 95.0 MB in the beginning and 78.0 MB in the end (delta: 17.0 MB). Peak memory consumption was 49.0 MB. Max. memory is 8.0 GB.
[2020-11-06 22:27:29,100 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] #######################
--- Results ---
* Results from de.uni_freiburg.informatik.ultimate.core:
- StatisticsResult: Toolchain Benchmarks
Benchmark results are:
* CDTParser took 0.16 ms. Allocated memory is still 152.0 MB. Free memory is still 123.8 MB. There was no memory consumed. Max. memory is 8.0 GB.
* CACSL2BoogieTranslator took 469.09 ms. Allocated memory is still 152.0 MB. Free memory was 125.0 MB in the beginning and 103.4 MB in the end (delta: 21.6 MB). Peak memory consumption was 22.0 MB. Max. memory is 8.0 GB.
* Boogie Preprocessor took 62.70 ms. Allocated memory is still 152.0 MB. Free memory was 103.4 MB in the beginning and 101.0 MB in the end (delta: 2.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB.
* RCFGBuilder took 667.73 ms. Allocated memory is still 152.0 MB. Free memory was 100.8 MB in the beginning and 95.5 MB in the end (delta: 5.3 MB). Peak memory consumption was 6.8 MB. Max. memory is 8.0 GB.
* TraceAbstraction took 1915.14 ms. Allocated memory was 152.0 MB in the beginning and 183.5 MB in the end (delta: 31.5 MB). Free memory was 95.0 MB in the beginning and 78.0 MB in the end (delta: 17.0 MB). Peak memory consumption was 49.0 MB. Max. memory is 8.0 GB.
* Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction:
- CounterExampleResult [Line: 12]: a call of __VERIFIER_error() is reachable
a call of __VERIFIER_error() is reachable
We found a FailurePath:
[L532] List a = (List) malloc(sizeof(struct node));
VAL [a={-1:0}, malloc(sizeof(struct node))={-1:0}]
[L533] COND FALSE !(a == 0)
VAL [a={-1:0}, malloc(sizeof(struct node))={-1:0}]
[L534] List t;
[L535] List p = a;
[L536] a->h = 2
VAL [a={-1:0}, malloc(sizeof(struct node))={-1:0}, p={-1:0}]
[L537] COND TRUE __VERIFIER_nondet_int()
[L538] p->h = 1
[L539] t = (List) malloc(sizeof(struct node))
VAL [a={-1:0}, malloc(sizeof(struct node))={-1:0}, malloc(sizeof(struct node))={-2:0}, p={-1:0}, t={-2:0}]
[L540] COND FALSE !(t == 0)
VAL [a={-1:0}, malloc(sizeof(struct node))={-1:0}, malloc(sizeof(struct node))={-2:0}, p={-1:0}, t={-2:0}]
[L541] p->n = t
[L542] EXPR p->n
[L542] p = p->n
[L537] COND FALSE !(__VERIFIER_nondet_int())
[L544] p->h = 2
[L545] p->n = 0
[L546] p = a
VAL [a={-1:0}, malloc(sizeof(struct node))={-1:0}, malloc(sizeof(struct node))={-2:0}, p={-1:0}, t={-2:0}]
[L547] COND TRUE p!=0
[L548] EXPR p->h
VAL [a={-1:0}, malloc(sizeof(struct node))={-1:0}, malloc(sizeof(struct node))={-2:0}, p={-1:0}, p->h=1, t={-2:0}]
[L548] COND TRUE p->h != 2
[L549] CALL reach_error()
[L12] COND FALSE !(0)
[L12] __assert_fail ("0", "simple-1.c", 3, __extension__ __PRETTY_FUNCTION__)
- StatisticsResult: Ultimate Automizer benchmark data
CFG has 10 procedures, 48 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 1.8s, OverallIterations: 4, TraceHistogramMax: 2, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 57 SDtfs, 43 SDslu, 74 SDs, 0 SdLazy, 130 SolverSat, 21 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 41 GetRequests, 25 SyntacticMatches, 2 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=32occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 13 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 89 NumberOfCodeBlocks, 89 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 65 ConstructedInterpolants, 0 QuantifiedInterpolants, 6187 SizeOfPredicates, 7 NumberOfNonLiveVariables, 118 ConjunctsInSsa, 19 ConjunctsInUnsatCore, 4 InterpolantComputations, 2 PerfectInterpolantSequences, 2/4 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available
RESULT: Ultimate proved your program to be incorrect!
Received shutdown request...