/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
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[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...