/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/automizer/acceleratedInterpolation/acceleratedInterpolationWernerOverapprox_32.epf -i ../../../trunk/examples/svcomp/ldv-regression/fo_test.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-36cd7be [2021-02-24 04:20:50,645 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-02-24 04:20:50,649 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-02-24 04:20:50,707 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-02-24 04:20:50,708 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-02-24 04:20:50,712 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-02-24 04:20:50,716 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-02-24 04:20:50,724 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-02-24 04:20:50,727 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-02-24 04:20:50,733 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-02-24 04:20:50,735 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-02-24 04:20:50,737 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-02-24 04:20:50,737 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-02-24 04:20:50,740 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-02-24 04:20:50,742 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-02-24 04:20:50,755 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-02-24 04:20:50,760 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-02-24 04:20:50,762 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-02-24 04:20:50,770 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-02-24 04:20:50,779 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-02-24 04:20:50,781 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-02-24 04:20:50,784 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-02-24 04:20:50,786 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-02-24 04:20:50,789 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-02-24 04:20:50,798 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-02-24 04:20:50,799 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-02-24 04:20:50,799 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-02-24 04:20:50,802 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-02-24 04:20:50,802 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-02-24 04:20:50,803 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-02-24 04:20:50,804 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-02-24 04:20:50,805 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-02-24 04:20:50,807 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-02-24 04:20:50,808 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-02-24 04:20:50,809 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-02-24 04:20:50,810 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-02-24 04:20:50,810 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-02-24 04:20:50,811 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-02-24 04:20:50,811 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-02-24 04:20:50,812 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-02-24 04:20:50,813 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-02-24 04:20:50,814 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationWernerOverapprox_32.epf [2021-02-24 04:20:50,842 INFO L113 SettingsManager]: Loading preferences was successful [2021-02-24 04:20:50,842 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-02-24 04:20:50,848 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-02-24 04:20:50,848 INFO L138 SettingsManager]: * sizeof long=4 [2021-02-24 04:20:50,848 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-02-24 04:20:50,848 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-02-24 04:20:50,849 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-02-24 04:20:50,849 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-02-24 04:20:50,849 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-02-24 04:20:50,849 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-02-24 04:20:50,850 INFO L138 SettingsManager]: * sizeof long double=12 [2021-02-24 04:20:50,851 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-02-24 04:20:50,851 INFO L138 SettingsManager]: * Use constant arrays=true [2021-02-24 04:20:50,851 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-02-24 04:20:50,852 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-02-24 04:20:50,852 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2021-02-24 04:20:50,852 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-02-24 04:20:50,852 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-02-24 04:20:50,853 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-02-24 04:20:50,853 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-02-24 04:20:50,853 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2021-02-24 04:20:50,853 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-02-24 04:20:50,854 INFO L138 SettingsManager]: * Loop acceleration method that is used by accelerated interpolation=WERNER_OVERAPPROX [2021-02-24 04:20:50,854 INFO L138 SettingsManager]: * Use separate solver for trace checks=false WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-02-24 04:20:51,261 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-02-24 04:20:51,287 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-02-24 04:20:51,291 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-02-24 04:20:51,293 INFO L271 PluginConnector]: Initializing CDTParser... [2021-02-24 04:20:51,294 INFO L275 PluginConnector]: CDTParser initialized [2021-02-24 04:20:51,295 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-regression/fo_test.i [2021-02-24 04:20:51,394 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1a95c5dd3/03e66d7bd6f046c4b3b3cfc608ca6bfc/FLAG153df5720 [2021-02-24 04:20:52,281 INFO L306 CDTParser]: Found 1 translation units. [2021-02-24 04:20:52,282 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-regression/fo_test.i [2021-02-24 04:20:52,307 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1a95c5dd3/03e66d7bd6f046c4b3b3cfc608ca6bfc/FLAG153df5720 [2021-02-24 04:20:52,531 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1a95c5dd3/03e66d7bd6f046c4b3b3cfc608ca6bfc [2021-02-24 04:20:52,534 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-02-24 04:20:52,549 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-02-24 04:20:52,551 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-02-24 04:20:52,551 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-02-24 04:20:52,556 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-02-24 04:20:52,557 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.02 04:20:52" (1/1) ... [2021-02-24 04:20:52,559 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4da72e5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 04:20:52, skipping insertion in model container [2021-02-24 04:20:52,559 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.02 04:20:52" (1/1) ... [2021-02-24 04:20:52,568 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-02-24 04:20:52,619 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-02-24 04:20:53,104 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/ldv-regression/fo_test.i[40440,40453] [2021-02-24 04:20:53,124 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-24 04:20:53,133 INFO L203 MainTranslator]: Completed pre-run [2021-02-24 04:20:53,177 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/ldv-regression/fo_test.i[40440,40453] [2021-02-24 04:20:53,183 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-24 04:20:53,368 INFO L208 MainTranslator]: Completed translation [2021-02-24 04:20:53,368 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 04:20:53 WrapperNode [2021-02-24 04:20:53,368 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-02-24 04:20:53,370 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-02-24 04:20:53,370 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-02-24 04:20:53,370 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-02-24 04:20:53,384 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 04:20:53" (1/1) ... [2021-02-24 04:20:53,385 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 04:20:53" (1/1) ... [2021-02-24 04:20:53,424 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 04:20:53" (1/1) ... [2021-02-24 04:20:53,424 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 04:20:53" (1/1) ... [2021-02-24 04:20:53,453 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 04:20:53" (1/1) ... [2021-02-24 04:20:53,455 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 04:20:53" (1/1) ... [2021-02-24 04:20:53,471 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 04:20:53" (1/1) ... [2021-02-24 04:20:53,484 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-02-24 04:20:53,486 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-02-24 04:20:53,486 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-02-24 04:20:53,486 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-02-24 04:20:53,487 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 04:20:53" (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 [2021-02-24 04:20:53,621 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-02-24 04:20:53,622 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-02-24 04:20:53,622 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2021-02-24 04:20:53,622 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2021-02-24 04:20:53,622 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2021-02-24 04:20:53,622 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint16_identity [2021-02-24 04:20:53,622 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint32_identity [2021-02-24 04:20:53,623 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint64_identity [2021-02-24 04:20:53,623 INFO L138 BoogieDeclarations]: Found implementation of procedure __blast_assert [2021-02-24 04:20:53,624 INFO L138 BoogieDeclarations]: Found implementation of procedure open [2021-02-24 04:20:53,624 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-02-24 04:20:53,624 INFO L138 BoogieDeclarations]: Found implementation of procedure l_read [2021-02-24 04:20:53,624 INFO L138 BoogieDeclarations]: Found implementation of procedure l_open [2021-02-24 04:20:53,625 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2021-02-24 04:20:53,625 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2021-02-24 04:20:53,626 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2021-02-24 04:20:53,626 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-02-24 04:20:53,627 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2021-02-24 04:20:53,627 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2021-02-24 04:20:53,630 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2021-02-24 04:20:53,630 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2021-02-24 04:20:53,630 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2021-02-24 04:20:53,630 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2021-02-24 04:20:53,630 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2021-02-24 04:20:53,631 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2021-02-24 04:20:53,631 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2021-02-24 04:20:53,631 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2021-02-24 04:20:53,631 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2021-02-24 04:20:53,631 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2021-02-24 04:20:53,632 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2021-02-24 04:20:53,632 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2021-02-24 04:20:53,632 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2021-02-24 04:20:53,632 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2021-02-24 04:20:53,632 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2021-02-24 04:20:53,632 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2021-02-24 04:20:53,632 INFO L130 BoogieDeclarations]: Found specification of procedure __uint16_identity [2021-02-24 04:20:53,632 INFO L130 BoogieDeclarations]: Found specification of procedure __uint32_identity [2021-02-24 04:20:53,633 INFO L130 BoogieDeclarations]: Found specification of procedure __uint64_identity [2021-02-24 04:20:53,633 INFO L130 BoogieDeclarations]: Found specification of procedure select [2021-02-24 04:20:53,633 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2021-02-24 04:20:53,633 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2021-02-24 04:20:53,633 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2021-02-24 04:20:53,633 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2021-02-24 04:20:53,633 INFO L130 BoogieDeclarations]: Found specification of procedure random [2021-02-24 04:20:53,634 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2021-02-24 04:20:53,634 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2021-02-24 04:20:53,634 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2021-02-24 04:20:53,634 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2021-02-24 04:20:53,634 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2021-02-24 04:20:53,634 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2021-02-24 04:20:53,634 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2021-02-24 04:20:53,634 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2021-02-24 04:20:53,635 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2021-02-24 04:20:53,635 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2021-02-24 04:20:53,635 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2021-02-24 04:20:53,635 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2021-02-24 04:20:53,635 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2021-02-24 04:20:53,635 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2021-02-24 04:20:53,635 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2021-02-24 04:20:53,635 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2021-02-24 04:20:53,637 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2021-02-24 04:20:53,637 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2021-02-24 04:20:53,637 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2021-02-24 04:20:53,637 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2021-02-24 04:20:53,637 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2021-02-24 04:20:53,637 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2021-02-24 04:20:53,637 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2021-02-24 04:20:53,638 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2021-02-24 04:20:53,638 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2021-02-24 04:20:53,638 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2021-02-24 04:20:53,638 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2021-02-24 04:20:53,638 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2021-02-24 04:20:53,639 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2021-02-24 04:20:53,639 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2021-02-24 04:20:53,639 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2021-02-24 04:20:53,639 INFO L130 BoogieDeclarations]: Found specification of procedure free [2021-02-24 04:20:53,639 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2021-02-24 04:20:53,640 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2021-02-24 04:20:53,640 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2021-02-24 04:20:53,640 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2021-02-24 04:20:53,641 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2021-02-24 04:20:53,641 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2021-02-24 04:20:53,641 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2021-02-24 04:20:53,642 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2021-02-24 04:20:53,642 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2021-02-24 04:20:53,642 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2021-02-24 04:20:53,642 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2021-02-24 04:20:53,642 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2021-02-24 04:20:53,642 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2021-02-24 04:20:53,642 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2021-02-24 04:20:53,643 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2021-02-24 04:20:53,643 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2021-02-24 04:20:53,643 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2021-02-24 04:20:53,645 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2021-02-24 04:20:53,645 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2021-02-24 04:20:53,645 INFO L130 BoogieDeclarations]: Found specification of procedure system [2021-02-24 04:20:53,646 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2021-02-24 04:20:53,646 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2021-02-24 04:20:53,646 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2021-02-24 04:20:53,646 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2021-02-24 04:20:53,646 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2021-02-24 04:20:53,646 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2021-02-24 04:20:53,646 INFO L130 BoogieDeclarations]: Found specification of procedure div [2021-02-24 04:20:53,646 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2021-02-24 04:20:53,646 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2021-02-24 04:20:53,646 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2021-02-24 04:20:53,647 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2021-02-24 04:20:53,647 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2021-02-24 04:20:53,647 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2021-02-24 04:20:53,647 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2021-02-24 04:20:53,647 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2021-02-24 04:20:53,647 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2021-02-24 04:20:53,647 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2021-02-24 04:20:53,647 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2021-02-24 04:20:53,647 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2021-02-24 04:20:53,647 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2021-02-24 04:20:53,647 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2021-02-24 04:20:53,648 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2021-02-24 04:20:53,648 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2021-02-24 04:20:53,648 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2021-02-24 04:20:53,648 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2021-02-24 04:20:53,650 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2021-02-24 04:20:53,651 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2021-02-24 04:20:53,651 INFO L130 BoogieDeclarations]: Found specification of procedure access [2021-02-24 04:20:53,651 INFO L130 BoogieDeclarations]: Found specification of procedure faccessat [2021-02-24 04:20:53,651 INFO L130 BoogieDeclarations]: Found specification of procedure lseek [2021-02-24 04:20:53,651 INFO L130 BoogieDeclarations]: Found specification of procedure close [2021-02-24 04:20:53,651 INFO L130 BoogieDeclarations]: Found specification of procedure read [2021-02-24 04:20:53,651 INFO L130 BoogieDeclarations]: Found specification of procedure write [2021-02-24 04:20:53,652 INFO L130 BoogieDeclarations]: Found specification of procedure pread [2021-02-24 04:20:53,652 INFO L130 BoogieDeclarations]: Found specification of procedure pwrite [2021-02-24 04:20:53,652 INFO L130 BoogieDeclarations]: Found specification of procedure pipe [2021-02-24 04:20:53,652 INFO L130 BoogieDeclarations]: Found specification of procedure alarm [2021-02-24 04:20:53,652 INFO L130 BoogieDeclarations]: Found specification of procedure sleep [2021-02-24 04:20:53,653 INFO L130 BoogieDeclarations]: Found specification of procedure ualarm [2021-02-24 04:20:53,653 INFO L130 BoogieDeclarations]: Found specification of procedure usleep [2021-02-24 04:20:53,653 INFO L130 BoogieDeclarations]: Found specification of procedure pause [2021-02-24 04:20:53,653 INFO L130 BoogieDeclarations]: Found specification of procedure chown [2021-02-24 04:20:53,653 INFO L130 BoogieDeclarations]: Found specification of procedure fchown [2021-02-24 04:20:53,654 INFO L130 BoogieDeclarations]: Found specification of procedure lchown [2021-02-24 04:20:53,654 INFO L130 BoogieDeclarations]: Found specification of procedure fchownat [2021-02-24 04:20:53,654 INFO L130 BoogieDeclarations]: Found specification of procedure chdir [2021-02-24 04:20:53,654 INFO L130 BoogieDeclarations]: Found specification of procedure fchdir [2021-02-24 04:20:53,654 INFO L130 BoogieDeclarations]: Found specification of procedure getcwd [2021-02-24 04:20:53,654 INFO L130 BoogieDeclarations]: Found specification of procedure getwd [2021-02-24 04:20:53,654 INFO L130 BoogieDeclarations]: Found specification of procedure dup [2021-02-24 04:20:53,655 INFO L130 BoogieDeclarations]: Found specification of procedure dup2 [2021-02-24 04:20:53,655 INFO L130 BoogieDeclarations]: Found specification of procedure execve [2021-02-24 04:20:53,655 INFO L130 BoogieDeclarations]: Found specification of procedure fexecve [2021-02-24 04:20:53,655 INFO L130 BoogieDeclarations]: Found specification of procedure execv [2021-02-24 04:20:53,655 INFO L130 BoogieDeclarations]: Found specification of procedure execle [2021-02-24 04:20:53,655 INFO L130 BoogieDeclarations]: Found specification of procedure execl [2021-02-24 04:20:53,655 INFO L130 BoogieDeclarations]: Found specification of procedure execvp [2021-02-24 04:20:53,656 INFO L130 BoogieDeclarations]: Found specification of procedure execlp [2021-02-24 04:20:53,656 INFO L130 BoogieDeclarations]: Found specification of procedure nice [2021-02-24 04:20:53,656 INFO L130 BoogieDeclarations]: Found specification of procedure _exit [2021-02-24 04:20:53,656 INFO L130 BoogieDeclarations]: Found specification of procedure pathconf [2021-02-24 04:20:53,656 INFO L130 BoogieDeclarations]: Found specification of procedure fpathconf [2021-02-24 04:20:53,656 INFO L130 BoogieDeclarations]: Found specification of procedure sysconf [2021-02-24 04:20:53,656 INFO L130 BoogieDeclarations]: Found specification of procedure confstr [2021-02-24 04:20:53,657 INFO L130 BoogieDeclarations]: Found specification of procedure getpid [2021-02-24 04:20:53,657 INFO L130 BoogieDeclarations]: Found specification of procedure getppid [2021-02-24 04:20:53,657 INFO L130 BoogieDeclarations]: Found specification of procedure getpgrp [2021-02-24 04:20:53,657 INFO L130 BoogieDeclarations]: Found specification of procedure __getpgid [2021-02-24 04:20:53,657 INFO L130 BoogieDeclarations]: Found specification of procedure getpgid [2021-02-24 04:20:53,657 INFO L130 BoogieDeclarations]: Found specification of procedure setpgid [2021-02-24 04:20:53,657 INFO L130 BoogieDeclarations]: Found specification of procedure setpgrp [2021-02-24 04:20:53,658 INFO L130 BoogieDeclarations]: Found specification of procedure setsid [2021-02-24 04:20:53,658 INFO L130 BoogieDeclarations]: Found specification of procedure getsid [2021-02-24 04:20:53,658 INFO L130 BoogieDeclarations]: Found specification of procedure getuid [2021-02-24 04:20:53,658 INFO L130 BoogieDeclarations]: Found specification of procedure geteuid [2021-02-24 04:20:53,658 INFO L130 BoogieDeclarations]: Found specification of procedure getgid [2021-02-24 04:20:53,658 INFO L130 BoogieDeclarations]: Found specification of procedure getegid [2021-02-24 04:20:53,658 INFO L130 BoogieDeclarations]: Found specification of procedure getgroups [2021-02-24 04:20:53,658 INFO L130 BoogieDeclarations]: Found specification of procedure setuid [2021-02-24 04:20:53,659 INFO L130 BoogieDeclarations]: Found specification of procedure setreuid [2021-02-24 04:20:53,659 INFO L130 BoogieDeclarations]: Found specification of procedure seteuid [2021-02-24 04:20:53,659 INFO L130 BoogieDeclarations]: Found specification of procedure setgid [2021-02-24 04:20:53,659 INFO L130 BoogieDeclarations]: Found specification of procedure setregid [2021-02-24 04:20:53,659 INFO L130 BoogieDeclarations]: Found specification of procedure setegid [2021-02-24 04:20:53,659 INFO L130 BoogieDeclarations]: Found specification of procedure fork [2021-02-24 04:20:53,659 INFO L130 BoogieDeclarations]: Found specification of procedure vfork [2021-02-24 04:20:53,659 INFO L130 BoogieDeclarations]: Found specification of procedure ttyname [2021-02-24 04:20:53,660 INFO L130 BoogieDeclarations]: Found specification of procedure ttyname_r [2021-02-24 04:20:53,660 INFO L130 BoogieDeclarations]: Found specification of procedure isatty [2021-02-24 04:20:53,660 INFO L130 BoogieDeclarations]: Found specification of procedure ttyslot [2021-02-24 04:20:53,660 INFO L130 BoogieDeclarations]: Found specification of procedure link [2021-02-24 04:20:53,660 INFO L130 BoogieDeclarations]: Found specification of procedure linkat [2021-02-24 04:20:53,660 INFO L130 BoogieDeclarations]: Found specification of procedure symlink [2021-02-24 04:20:53,660 INFO L130 BoogieDeclarations]: Found specification of procedure readlink [2021-02-24 04:20:53,660 INFO L130 BoogieDeclarations]: Found specification of procedure symlinkat [2021-02-24 04:20:53,661 INFO L130 BoogieDeclarations]: Found specification of procedure readlinkat [2021-02-24 04:20:53,661 INFO L130 BoogieDeclarations]: Found specification of procedure unlink [2021-02-24 04:20:53,661 INFO L130 BoogieDeclarations]: Found specification of procedure unlinkat [2021-02-24 04:20:53,661 INFO L130 BoogieDeclarations]: Found specification of procedure rmdir [2021-02-24 04:20:53,661 INFO L130 BoogieDeclarations]: Found specification of procedure tcgetpgrp [2021-02-24 04:20:53,661 INFO L130 BoogieDeclarations]: Found specification of procedure tcsetpgrp [2021-02-24 04:20:53,662 INFO L130 BoogieDeclarations]: Found specification of procedure getlogin [2021-02-24 04:20:53,662 INFO L130 BoogieDeclarations]: Found specification of procedure getlogin_r [2021-02-24 04:20:53,662 INFO L130 BoogieDeclarations]: Found specification of procedure setlogin [2021-02-24 04:20:53,662 INFO L130 BoogieDeclarations]: Found specification of procedure getopt [2021-02-24 04:20:53,662 INFO L130 BoogieDeclarations]: Found specification of procedure gethostname [2021-02-24 04:20:53,662 INFO L130 BoogieDeclarations]: Found specification of procedure sethostname [2021-02-24 04:20:53,662 INFO L130 BoogieDeclarations]: Found specification of procedure sethostid [2021-02-24 04:20:53,662 INFO L130 BoogieDeclarations]: Found specification of procedure getdomainname [2021-02-24 04:20:53,663 INFO L130 BoogieDeclarations]: Found specification of procedure setdomainname [2021-02-24 04:20:53,663 INFO L130 BoogieDeclarations]: Found specification of procedure vhangup [2021-02-24 04:20:53,663 INFO L130 BoogieDeclarations]: Found specification of procedure revoke [2021-02-24 04:20:53,663 INFO L130 BoogieDeclarations]: Found specification of procedure profil [2021-02-24 04:20:53,663 INFO L130 BoogieDeclarations]: Found specification of procedure acct [2021-02-24 04:20:53,663 INFO L130 BoogieDeclarations]: Found specification of procedure getusershell [2021-02-24 04:20:53,663 INFO L130 BoogieDeclarations]: Found specification of procedure endusershell [2021-02-24 04:20:53,664 INFO L130 BoogieDeclarations]: Found specification of procedure setusershell [2021-02-24 04:20:53,664 INFO L130 BoogieDeclarations]: Found specification of procedure daemon [2021-02-24 04:20:53,664 INFO L130 BoogieDeclarations]: Found specification of procedure chroot [2021-02-24 04:20:53,664 INFO L130 BoogieDeclarations]: Found specification of procedure getpass [2021-02-24 04:20:53,664 INFO L130 BoogieDeclarations]: Found specification of procedure fsync [2021-02-24 04:20:53,664 INFO L130 BoogieDeclarations]: Found specification of procedure gethostid [2021-02-24 04:20:53,664 INFO L130 BoogieDeclarations]: Found specification of procedure sync [2021-02-24 04:20:53,664 INFO L130 BoogieDeclarations]: Found specification of procedure getpagesize [2021-02-24 04:20:53,664 INFO L130 BoogieDeclarations]: Found specification of procedure getdtablesize [2021-02-24 04:20:53,665 INFO L130 BoogieDeclarations]: Found specification of procedure truncate [2021-02-24 04:20:53,665 INFO L130 BoogieDeclarations]: Found specification of procedure ftruncate [2021-02-24 04:20:53,665 INFO L130 BoogieDeclarations]: Found specification of procedure brk [2021-02-24 04:20:53,665 INFO L130 BoogieDeclarations]: Found specification of procedure sbrk [2021-02-24 04:20:53,665 INFO L130 BoogieDeclarations]: Found specification of procedure syscall [2021-02-24 04:20:53,665 INFO L130 BoogieDeclarations]: Found specification of procedure lockf [2021-02-24 04:20:53,665 INFO L130 BoogieDeclarations]: Found specification of procedure fdatasync [2021-02-24 04:20:53,666 INFO L130 BoogieDeclarations]: Found specification of procedure getentropy [2021-02-24 04:20:53,666 INFO L130 BoogieDeclarations]: Found specification of procedure __blast_assert [2021-02-24 04:20:53,666 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2021-02-24 04:20:53,666 INFO L130 BoogieDeclarations]: Found specification of procedure open [2021-02-24 04:20:53,666 INFO L130 BoogieDeclarations]: Found specification of procedure l_read [2021-02-24 04:20:53,666 INFO L130 BoogieDeclarations]: Found specification of procedure l_open [2021-02-24 04:20:53,666 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-02-24 04:20:53,667 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-02-24 04:20:53,667 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-02-24 04:20:53,667 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-02-24 04:20:53,667 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-02-24 04:20:53,667 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-02-24 04:20:53,667 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-02-24 04:20:53,667 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-02-24 04:20:54,557 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-02-24 04:20:54,558 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-02-24 04:20:54,560 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.02 04:20:54 BoogieIcfgContainer [2021-02-24 04:20:54,560 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-02-24 04:20:54,563 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-02-24 04:20:54,563 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-02-24 04:20:54,567 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-02-24 04:20:54,568 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.02 04:20:52" (1/3) ... [2021-02-24 04:20:54,569 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1ee2c93f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.02 04:20:54, skipping insertion in model container [2021-02-24 04:20:54,569 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 04:20:53" (2/3) ... [2021-02-24 04:20:54,570 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1ee2c93f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.02 04:20:54, skipping insertion in model container [2021-02-24 04:20:54,570 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.02 04:20:54" (3/3) ... [2021-02-24 04:20:54,572 INFO L111 eAbstractionObserver]: Analyzing ICFG fo_test.i [2021-02-24 04:20:54,581 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2021-02-24 04:20:54,587 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-02-24 04:20:54,612 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-02-24 04:20:54,642 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-02-24 04:20:54,642 INFO L377 AbstractCegarLoop]: Hoare is true [2021-02-24 04:20:54,643 INFO L378 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2021-02-24 04:20:54,643 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-02-24 04:20:54,643 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-02-24 04:20:54,643 INFO L381 AbstractCegarLoop]: Difference is false [2021-02-24 04:20:54,643 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-02-24 04:20:54,643 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-02-24 04:20:54,664 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states. [2021-02-24 04:20:54,680 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2021-02-24 04:20:54,680 INFO L414 BasicCegarLoop]: Found error trace [2021-02-24 04:20:54,681 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-24 04:20:54,682 INFO L428 AbstractCegarLoop]: === Iteration 1 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-24 04:20:54,689 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-24 04:20:54,690 INFO L82 PathProgramCache]: Analyzing trace with hash -911001652, now seen corresponding path program 1 times [2021-02-24 04:20:54,701 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-24 04:20:54,701 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1930688060] [2021-02-24 04:20:54,702 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-24 04:20:54,882 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-24 04:20:55,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-02-24 04:20:55,060 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-02-24 04:20:55,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-02-24 04:20:55,148 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-02-24 04:20:55,225 INFO L173 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2021-02-24 04:20:55,225 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2021-02-24 04:20:55,226 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-02-24 04:20:55,267 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.02 04:20:55 BoogieIcfgContainer [2021-02-24 04:20:55,267 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-02-24 04:20:55,274 INFO L168 Benchmark]: Toolchain (without parser) took 2732.74 ms. Allocated memory is still 153.1 MB. Free memory was 128.1 MB in the beginning and 98.0 MB in the end (delta: 30.1 MB). Peak memory consumption was 30.7 MB. Max. memory is 8.0 GB. [2021-02-24 04:20:55,277 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 153.1 MB. Free memory is still 126.3 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-02-24 04:20:55,278 INFO L168 Benchmark]: CACSL2BoogieTranslator took 817.81 ms. Allocated memory is still 153.1 MB. Free memory was 127.0 MB in the beginning and 113.8 MB in the end (delta: 13.2 MB). Peak memory consumption was 29.1 MB. Max. memory is 8.0 GB. [2021-02-24 04:20:55,279 INFO L168 Benchmark]: Boogie Preprocessor took 115.31 ms. Allocated memory is still 153.1 MB. Free memory was 113.8 MB in the beginning and 107.4 MB in the end (delta: 6.4 MB). Peak memory consumption was 6.3 MB. Max. memory is 8.0 GB. [2021-02-24 04:20:55,280 INFO L168 Benchmark]: RCFGBuilder took 1074.46 ms. Allocated memory is still 153.1 MB. Free memory was 107.4 MB in the beginning and 120.5 MB in the end (delta: -13.1 MB). Peak memory consumption was 63.5 MB. Max. memory is 8.0 GB. [2021-02-24 04:20:55,281 INFO L168 Benchmark]: TraceAbstraction took 704.56 ms. Allocated memory is still 153.1 MB. Free memory was 120.0 MB in the beginning and 98.0 MB in the end (delta: 22.0 MB). Peak memory consumption was 21.0 MB. Max. memory is 8.0 GB. [2021-02-24 04:20:55,285 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 153.1 MB. Free memory is still 126.3 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 817.81 ms. Allocated memory is still 153.1 MB. Free memory was 127.0 MB in the beginning and 113.8 MB in the end (delta: 13.2 MB). Peak memory consumption was 29.1 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 115.31 ms. Allocated memory is still 153.1 MB. Free memory was 113.8 MB in the beginning and 107.4 MB in the end (delta: 6.4 MB). Peak memory consumption was 6.3 MB. Max. memory is 8.0 GB. * RCFGBuilder took 1074.46 ms. Allocated memory is still 153.1 MB. Free memory was 107.4 MB in the beginning and 120.5 MB in the end (delta: -13.1 MB). Peak memory consumption was 63.5 MB. Max. memory is 8.0 GB. * TraceAbstraction took 704.56 ms. Allocated memory is still 153.1 MB. Free memory was 120.0 MB in the beginning and 98.0 MB in the end (delta: 22.0 MB). Peak memory consumption was 21.0 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 980]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of large string literal at line 992. Possible FailurePath: [L987] int globalState = 0; [L992] CALL, EXPR l_open("unknown",00) [L1002] CALL, EXPR open(file,flags) [L985] return __VERIFIER_nondet_int(); [L1002] RET, EXPR open(file,flags) [L1002] int fd = open(file,flags); [L1003] COND FALSE !(fd>0) [L1004] return fd; [L992] RET, EXPR l_open("unknown",00) [L992] int file = l_open("unknown",00); [L993] void* cbuf = (void*) malloc(sizeof(char)*100); [L994] CALL l_read(file,cbuf,99) [L998] (globalState == 1) ? (0) : __blast_assert () [L998] CALL __blast_assert () [L980] reach_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 13 procedures, 88 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 0.5s, OverallIterations: 1, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=63occurred 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: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: No data available, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request...