/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/forester-heap/dll-circular-1.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-b7b32d2 [2021-02-22 02:00:29,079 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-02-22 02:00:29,082 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-02-22 02:00:29,119 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-02-22 02:00:29,120 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-02-22 02:00:29,122 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-02-22 02:00:29,123 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-02-22 02:00:29,126 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-02-22 02:00:29,128 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-02-22 02:00:29,130 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-02-22 02:00:29,131 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-02-22 02:00:29,133 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-02-22 02:00:29,133 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-02-22 02:00:29,134 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-02-22 02:00:29,136 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-02-22 02:00:29,138 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-02-22 02:00:29,139 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-02-22 02:00:29,153 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-02-22 02:00:29,158 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-02-22 02:00:29,166 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-02-22 02:00:29,168 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-02-22 02:00:29,176 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-02-22 02:00:29,179 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-02-22 02:00:29,180 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-02-22 02:00:29,188 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-02-22 02:00:29,189 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-02-22 02:00:29,189 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-02-22 02:00:29,190 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-02-22 02:00:29,192 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-02-22 02:00:29,194 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-02-22 02:00:29,194 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-02-22 02:00:29,195 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-02-22 02:00:29,197 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-02-22 02:00:29,198 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-02-22 02:00:29,200 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-02-22 02:00:29,200 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-02-22 02:00:29,201 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-02-22 02:00:29,202 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-02-22 02:00:29,202 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-02-22 02:00:29,204 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-02-22 02:00:29,205 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-02-22 02:00:29,211 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationWernerOverapprox_32.epf [2021-02-22 02:00:29,231 INFO L113 SettingsManager]: Loading preferences was successful [2021-02-22 02:00:29,232 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-02-22 02:00:29,237 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-02-22 02:00:29,237 INFO L138 SettingsManager]: * sizeof long=4 [2021-02-22 02:00:29,237 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-02-22 02:00:29,238 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-02-22 02:00:29,238 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-02-22 02:00:29,238 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-02-22 02:00:29,238 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-02-22 02:00:29,238 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-02-22 02:00:29,240 INFO L138 SettingsManager]: * sizeof long double=12 [2021-02-22 02:00:29,240 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-02-22 02:00:29,240 INFO L138 SettingsManager]: * Use constant arrays=true [2021-02-22 02:00:29,241 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-02-22 02:00:29,241 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-02-22 02:00:29,241 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2021-02-22 02:00:29,242 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-02-22 02:00:29,242 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-02-22 02:00:29,242 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-02-22 02:00:29,242 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-02-22 02:00:29,243 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2021-02-22 02:00:29,243 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-02-22 02:00:29,243 INFO L138 SettingsManager]: * Loop acceleration method that is used by accelerated interpolation=WERNER_OVERAPPROX [2021-02-22 02:00:29,243 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-02-22 02:00:29,661 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-02-22 02:00:29,693 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-02-22 02:00:29,697 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-02-22 02:00:29,701 INFO L271 PluginConnector]: Initializing CDTParser... [2021-02-22 02:00:29,703 INFO L275 PluginConnector]: CDTParser initialized [2021-02-22 02:00:29,705 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/forester-heap/dll-circular-1.i [2021-02-22 02:00:29,807 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8376506ae/2c7823913ac941cd80bab119ce4b9a8b/FLAG9dac481b1 [2021-02-22 02:00:30,660 INFO L306 CDTParser]: Found 1 translation units. [2021-02-22 02:00:30,661 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/forester-heap/dll-circular-1.i [2021-02-22 02:00:30,676 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8376506ae/2c7823913ac941cd80bab119ce4b9a8b/FLAG9dac481b1 [2021-02-22 02:00:30,923 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8376506ae/2c7823913ac941cd80bab119ce4b9a8b [2021-02-22 02:00:30,927 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-02-22 02:00:30,942 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-02-22 02:00:30,947 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-02-22 02:00:30,947 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-02-22 02:00:30,952 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-02-22 02:00:30,953 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.02 02:00:30" (1/1) ... [2021-02-22 02:00:30,954 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4646e5b4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 02:00:30, skipping insertion in model container [2021-02-22 02:00:30,954 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.02 02:00:30" (1/1) ... [2021-02-22 02:00:30,963 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-02-22 02:00:31,034 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-02-22 02:00:31,420 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/forester-heap/dll-circular-1.i[22365,22378] [2021-02-22 02:00:31,428 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/forester-heap/dll-circular-1.i[22471,22484] [2021-02-22 02:00:31,433 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/forester-heap/dll-circular-1.i[22595,22608] [2021-02-22 02:00:31,440 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-22 02:00:31,456 INFO L203 MainTranslator]: Completed pre-run [2021-02-22 02:00:31,495 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/forester-heap/dll-circular-1.i[22365,22378] [2021-02-22 02:00:31,497 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/forester-heap/dll-circular-1.i[22471,22484] [2021-02-22 02:00:31,499 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/forester-heap/dll-circular-1.i[22595,22608] [2021-02-22 02:00:31,502 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-22 02:00:31,564 INFO L208 MainTranslator]: Completed translation [2021-02-22 02:00:31,565 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 02:00:31 WrapperNode [2021-02-22 02:00:31,565 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-02-22 02:00:31,566 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-02-22 02:00:31,567 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-02-22 02:00:31,567 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-02-22 02:00:31,593 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 02:00:31" (1/1) ... [2021-02-22 02:00:31,593 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 02:00:31" (1/1) ... [2021-02-22 02:00:31,610 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 02:00:31" (1/1) ... [2021-02-22 02:00:31,610 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 02:00:31" (1/1) ... [2021-02-22 02:00:31,628 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 02:00:31" (1/1) ... [2021-02-22 02:00:31,635 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 02:00:31" (1/1) ... [2021-02-22 02:00:31,639 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 02:00:31" (1/1) ... [2021-02-22 02:00:31,646 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-02-22 02:00:31,647 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-02-22 02:00:31,647 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-02-22 02:00:31,647 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-02-22 02:00:31,672 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 02:00:31" (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 [2021-02-22 02:00:31,774 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-02-22 02:00:31,774 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-02-22 02:00:31,774 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2021-02-22 02:00:31,774 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-02-22 02:00:31,775 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2021-02-22 02:00:31,775 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2021-02-22 02:00:31,775 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2021-02-22 02:00:31,775 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2021-02-22 02:00:31,775 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2021-02-22 02:00:31,775 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2021-02-22 02:00:31,775 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2021-02-22 02:00:31,776 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2021-02-22 02:00:31,776 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2021-02-22 02:00:31,776 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2021-02-22 02:00:31,776 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2021-02-22 02:00:31,776 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2021-02-22 02:00:31,776 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2021-02-22 02:00:31,777 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2021-02-22 02:00:31,777 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2021-02-22 02:00:31,777 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2021-02-22 02:00:31,777 INFO L130 BoogieDeclarations]: Found specification of procedure select [2021-02-22 02:00:31,777 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2021-02-22 02:00:31,777 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2021-02-22 02:00:31,778 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2021-02-22 02:00:31,778 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2021-02-22 02:00:31,778 INFO L130 BoogieDeclarations]: Found specification of procedure random [2021-02-22 02:00:31,778 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2021-02-22 02:00:31,778 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2021-02-22 02:00:31,778 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2021-02-22 02:00:31,779 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2021-02-22 02:00:31,779 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2021-02-22 02:00:31,779 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2021-02-22 02:00:31,779 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2021-02-22 02:00:31,779 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2021-02-22 02:00:31,779 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2021-02-22 02:00:31,780 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2021-02-22 02:00:31,780 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2021-02-22 02:00:31,780 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2021-02-22 02:00:31,780 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2021-02-22 02:00:31,780 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2021-02-22 02:00:31,780 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2021-02-22 02:00:31,780 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2021-02-22 02:00:31,781 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2021-02-22 02:00:31,781 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2021-02-22 02:00:31,781 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2021-02-22 02:00:31,781 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2021-02-22 02:00:31,781 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2021-02-22 02:00:31,781 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2021-02-22 02:00:31,782 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2021-02-22 02:00:31,782 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2021-02-22 02:00:31,782 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2021-02-22 02:00:31,782 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2021-02-22 02:00:31,782 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2021-02-22 02:00:31,782 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2021-02-22 02:00:31,782 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2021-02-22 02:00:31,783 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2021-02-22 02:00:31,783 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2021-02-22 02:00:31,783 INFO L130 BoogieDeclarations]: Found specification of procedure free [2021-02-22 02:00:31,783 INFO L130 BoogieDeclarations]: Found specification of procedure cfree [2021-02-22 02:00:31,783 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2021-02-22 02:00:31,783 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2021-02-22 02:00:31,783 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2021-02-22 02:00:31,784 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2021-02-22 02:00:31,784 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2021-02-22 02:00:31,784 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2021-02-22 02:00:31,784 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2021-02-22 02:00:31,784 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2021-02-22 02:00:31,784 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2021-02-22 02:00:31,785 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2021-02-22 02:00:31,785 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2021-02-22 02:00:31,785 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2021-02-22 02:00:31,785 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2021-02-22 02:00:31,785 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2021-02-22 02:00:31,785 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2021-02-22 02:00:31,786 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2021-02-22 02:00:31,786 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2021-02-22 02:00:31,786 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2021-02-22 02:00:31,786 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2021-02-22 02:00:31,786 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2021-02-22 02:00:31,786 INFO L130 BoogieDeclarations]: Found specification of procedure system [2021-02-22 02:00:31,786 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2021-02-22 02:00:31,787 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2021-02-22 02:00:31,787 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2021-02-22 02:00:31,787 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2021-02-22 02:00:31,787 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2021-02-22 02:00:31,787 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2021-02-22 02:00:31,787 INFO L130 BoogieDeclarations]: Found specification of procedure div [2021-02-22 02:00:31,788 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2021-02-22 02:00:31,788 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2021-02-22 02:00:31,788 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2021-02-22 02:00:31,788 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2021-02-22 02:00:31,788 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2021-02-22 02:00:31,788 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2021-02-22 02:00:31,788 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2021-02-22 02:00:31,789 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2021-02-22 02:00:31,789 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2021-02-22 02:00:31,789 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2021-02-22 02:00:31,789 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2021-02-22 02:00:31,789 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2021-02-22 02:00:31,789 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2021-02-22 02:00:31,789 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2021-02-22 02:00:31,790 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2021-02-22 02:00:31,790 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2021-02-22 02:00:31,790 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2021-02-22 02:00:31,790 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2021-02-22 02:00:31,790 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2021-02-22 02:00:31,790 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2021-02-22 02:00:31,790 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2021-02-22 02:00:31,791 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2021-02-22 02:00:31,791 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_perror_fail [2021-02-22 02:00:31,791 INFO L130 BoogieDeclarations]: Found specification of procedure __assert [2021-02-22 02:00:31,791 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2021-02-22 02:00:31,791 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-02-22 02:00:31,791 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-02-22 02:00:31,791 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-02-22 02:00:31,791 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-02-22 02:00:31,792 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-02-22 02:00:31,792 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-02-22 02:00:31,792 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-02-22 02:00:31,792 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-02-22 02:00:31,792 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-02-22 02:00:31,792 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-02-22 02:00:31,792 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-02-22 02:00:32,453 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-02-22 02:00:32,453 INFO L299 CfgBuilder]: Removed 9 assume(true) statements. [2021-02-22 02:00:32,456 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.02 02:00:32 BoogieIcfgContainer [2021-02-22 02:00:32,456 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-02-22 02:00:32,458 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-02-22 02:00:32,458 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-02-22 02:00:32,462 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-02-22 02:00:32,463 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.02 02:00:30" (1/3) ... [2021-02-22 02:00:32,464 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@d3b8967 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.02 02:00:32, skipping insertion in model container [2021-02-22 02:00:32,464 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 02:00:31" (2/3) ... [2021-02-22 02:00:32,465 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@d3b8967 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.02 02:00:32, skipping insertion in model container [2021-02-22 02:00:32,465 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.02 02:00:32" (3/3) ... [2021-02-22 02:00:32,467 INFO L111 eAbstractionObserver]: Analyzing ICFG dll-circular-1.i [2021-02-22 02:00:32,475 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2021-02-22 02:00:32,481 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2021-02-22 02:00:32,504 INFO L253 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-02-22 02:00:32,533 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-02-22 02:00:32,533 INFO L377 AbstractCegarLoop]: Hoare is true [2021-02-22 02:00:32,533 INFO L378 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2021-02-22 02:00:32,533 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-02-22 02:00:32,534 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-02-22 02:00:32,534 INFO L381 AbstractCegarLoop]: Difference is false [2021-02-22 02:00:32,534 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-02-22 02:00:32,534 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-02-22 02:00:32,557 INFO L276 IsEmpty]: Start isEmpty. Operand 103 states. [2021-02-22 02:00:32,568 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-02-22 02:00:32,569 INFO L414 BasicCegarLoop]: Found error trace [2021-02-22 02:00:32,570 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] [2021-02-22 02:00:32,570 INFO L428 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-22 02:00:32,577 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-22 02:00:32,578 INFO L82 PathProgramCache]: Analyzing trace with hash 353569161, now seen corresponding path program 1 times [2021-02-22 02:00:32,589 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-22 02:00:32,590 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1986557935] [2021-02-22 02:00:32,590 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-22 02:00:32,690 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-22 02:00:32,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:00:32,870 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:00:32,872 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:00:32,873 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:00:32,875 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:00:32,923 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-22 02:00:32,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:00:32,986 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:00:32,987 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:00:32,999 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-22 02:00:33,003 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1986557935] [2021-02-22 02:00:33,005 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-22 02:00:33,006 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-02-22 02:00:33,006 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [612211600] [2021-02-22 02:00:33,013 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-02-22 02:00:33,014 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-22 02:00:33,029 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-02-22 02:00:33,031 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-02-22 02:00:33,034 INFO L87 Difference]: Start difference. First operand 103 states. Second operand 3 states. [2021-02-22 02:00:33,315 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-22 02:00:33,315 INFO L93 Difference]: Finished difference Result 186 states and 222 transitions. [2021-02-22 02:00:33,316 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-02-22 02:00:33,317 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 24 [2021-02-22 02:00:33,318 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-22 02:00:33,329 INFO L225 Difference]: With dead ends: 186 [2021-02-22 02:00:33,329 INFO L226 Difference]: Without dead ends: 81 [2021-02-22 02:00:33,333 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 [2021-02-22 02:00:33,354 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 81 states. [2021-02-22 02:00:33,381 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 81 to 81. [2021-02-22 02:00:33,383 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 81 states. [2021-02-22 02:00:33,385 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81 states to 81 states and 86 transitions. [2021-02-22 02:00:33,387 INFO L78 Accepts]: Start accepts. Automaton has 81 states and 86 transitions. Word has length 24 [2021-02-22 02:00:33,387 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-22 02:00:33,387 INFO L480 AbstractCegarLoop]: Abstraction has 81 states and 86 transitions. [2021-02-22 02:00:33,387 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-02-22 02:00:33,388 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states and 86 transitions. [2021-02-22 02:00:33,388 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2021-02-22 02:00:33,389 INFO L414 BasicCegarLoop]: Found error trace [2021-02-22 02:00:33,389 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] [2021-02-22 02:00:33,389 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-02-22 02:00:33,390 INFO L428 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-22 02:00:33,390 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-22 02:00:33,391 INFO L82 PathProgramCache]: Analyzing trace with hash 921610958, now seen corresponding path program 1 times [2021-02-22 02:00:33,391 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-22 02:00:33,391 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [873754236] [2021-02-22 02:00:33,391 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-22 02:00:33,397 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-22 02:00:33,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:00:33,553 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:00:33,554 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:00:33,567 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:00:33,569 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-02-22 02:00:33,578 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:00:33,579 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-02-22 02:00:33,596 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:00:33,597 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-02-22 02:00:33,609 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:00:33,610 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-02-22 02:00:33,619 WARN L141 QuantifierPusher]: treesize reduction 8, result has 80.5 percent of original size [2021-02-22 02:00:33,622 WARN L147 QuantifierPusher]: treesize reduction 8, result has 80.5 percent of original size 33 [2021-02-22 02:00:33,667 WARN L141 QuantifierPusher]: treesize reduction 8, result has 50.0 percent of original size [2021-02-22 02:00:33,667 WARN L147 QuantifierPusher]: treesize reduction 8, result has 50.0 percent of original size 8 [2021-02-22 02:00:33,677 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:00:33,678 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-22 02:00:33,687 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:00:33,688 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-22 02:00:33,698 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:00:33,699 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:00:33,725 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-22 02:00:33,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:00:33,738 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:00:33,738 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:00:33,743 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-22 02:00:33,743 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [873754236] [2021-02-22 02:00:33,744 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-22 02:00:33,744 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-02-22 02:00:33,744 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2086962664] [2021-02-22 02:00:33,745 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-02-22 02:00:33,745 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-22 02:00:33,746 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-02-22 02:00:33,747 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2021-02-22 02:00:33,747 INFO L87 Difference]: Start difference. First operand 81 states and 86 transitions. Second operand 10 states. [2021-02-22 02:00:34,294 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-22 02:00:34,294 INFO L93 Difference]: Finished difference Result 159 states and 167 transitions. [2021-02-22 02:00:34,294 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-02-22 02:00:34,295 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 26 [2021-02-22 02:00:34,295 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-22 02:00:34,302 INFO L225 Difference]: With dead ends: 159 [2021-02-22 02:00:34,302 INFO L226 Difference]: Without dead ends: 157 [2021-02-22 02:00:34,305 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=85, Invalid=187, Unknown=0, NotChecked=0, Total=272 [2021-02-22 02:00:34,307 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 157 states. [2021-02-22 02:00:34,334 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 157 to 89. [2021-02-22 02:00:34,334 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 89 states. [2021-02-22 02:00:34,338 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89 states to 89 states and 95 transitions. [2021-02-22 02:00:34,338 INFO L78 Accepts]: Start accepts. Automaton has 89 states and 95 transitions. Word has length 26 [2021-02-22 02:00:34,339 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-22 02:00:34,339 INFO L480 AbstractCegarLoop]: Abstraction has 89 states and 95 transitions. [2021-02-22 02:00:34,339 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2021-02-22 02:00:34,339 INFO L276 IsEmpty]: Start isEmpty. Operand 89 states and 95 transitions. [2021-02-22 02:00:34,341 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2021-02-22 02:00:34,341 INFO L414 BasicCegarLoop]: Found error trace [2021-02-22 02:00:34,342 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] [2021-02-22 02:00:34,342 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-02-22 02:00:34,342 INFO L428 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-22 02:00:34,343 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-22 02:00:34,343 INFO L82 PathProgramCache]: Analyzing trace with hash 2032897458, now seen corresponding path program 1 times [2021-02-22 02:00:34,343 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-22 02:00:34,344 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [574590446] [2021-02-22 02:00:34,344 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-22 02:00:34,362 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-22 02:00:34,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:00:34,477 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:00:34,477 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:00:34,478 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:00:34,479 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-22 02:00:34,483 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:00:34,485 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-22 02:00:34,491 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:00:34,492 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-22 02:00:34,499 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:00:34,500 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-02-22 02:00:34,512 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:00:34,513 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-02-22 02:00:34,528 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:00:34,529 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-02-22 02:00:34,543 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:00:34,544 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-02-22 02:00:34,555 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:00:34,556 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-22 02:00:34,569 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:00:34,569 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-22 02:00:34,582 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:00:34,582 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:00:34,613 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-22 02:00:34,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:00:34,623 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:00:34,624 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:00:34,628 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-22 02:00:34,629 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [574590446] [2021-02-22 02:00:34,630 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-22 02:00:34,630 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-02-22 02:00:34,630 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [229768386] [2021-02-22 02:00:34,630 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-02-22 02:00:34,631 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-22 02:00:34,631 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-02-22 02:00:34,632 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=109, Unknown=0, NotChecked=0, Total=132 [2021-02-22 02:00:34,632 INFO L87 Difference]: Start difference. First operand 89 states and 95 transitions. Second operand 12 states. [2021-02-22 02:00:35,218 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-22 02:00:35,218 INFO L93 Difference]: Finished difference Result 126 states and 136 transitions. [2021-02-22 02:00:35,219 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-02-22 02:00:35,219 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 35 [2021-02-22 02:00:35,219 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-22 02:00:35,221 INFO L225 Difference]: With dead ends: 126 [2021-02-22 02:00:35,221 INFO L226 Difference]: Without dead ends: 124 [2021-02-22 02:00:35,222 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=92, Invalid=288, Unknown=0, NotChecked=0, Total=380 [2021-02-22 02:00:35,222 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 124 states. [2021-02-22 02:00:35,246 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 124 to 109. [2021-02-22 02:00:35,246 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 109 states. [2021-02-22 02:00:35,248 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 109 states and 118 transitions. [2021-02-22 02:00:35,248 INFO L78 Accepts]: Start accepts. Automaton has 109 states and 118 transitions. Word has length 35 [2021-02-22 02:00:35,248 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-22 02:00:35,248 INFO L480 AbstractCegarLoop]: Abstraction has 109 states and 118 transitions. [2021-02-22 02:00:35,248 INFO L481 AbstractCegarLoop]: Interpolant automaton has 12 states. [2021-02-22 02:00:35,249 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states and 118 transitions. [2021-02-22 02:00:35,250 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2021-02-22 02:00:35,250 INFO L414 BasicCegarLoop]: Found error trace [2021-02-22 02:00:35,250 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] [2021-02-22 02:00:35,251 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-02-22 02:00:35,251 INFO L428 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-22 02:00:35,251 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-22 02:00:35,252 INFO L82 PathProgramCache]: Analyzing trace with hash -1829183814, now seen corresponding path program 1 times [2021-02-22 02:00:35,252 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-22 02:00:35,252 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1207700603] [2021-02-22 02:00:35,252 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-22 02:00:35,257 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-22 02:00:35,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:00:35,310 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:00:35,310 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:00:35,311 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:00:35,312 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 02:00:35,315 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:00:35,316 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:00:35,341 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-22 02:00:35,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:00:35,358 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:00:35,359 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:00:35,363 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-22 02:00:35,364 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1207700603] [2021-02-22 02:00:35,364 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-22 02:00:35,364 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-02-22 02:00:35,365 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1659580077] [2021-02-22 02:00:35,365 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-02-22 02:00:35,365 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-22 02:00:35,366 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-02-22 02:00:35,367 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-02-22 02:00:35,368 INFO L87 Difference]: Start difference. First operand 109 states and 118 transitions. Second operand 4 states. [2021-02-22 02:00:35,574 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-22 02:00:35,574 INFO L93 Difference]: Finished difference Result 238 states and 256 transitions. [2021-02-22 02:00:35,575 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-02-22 02:00:35,575 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 40 [2021-02-22 02:00:35,576 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-22 02:00:35,579 INFO L225 Difference]: With dead ends: 238 [2021-02-22 02:00:35,579 INFO L226 Difference]: Without dead ends: 170 [2021-02-22 02:00:35,580 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-02-22 02:00:35,584 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 170 states. [2021-02-22 02:00:35,636 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 170 to 129. [2021-02-22 02:00:35,636 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 129 states. [2021-02-22 02:00:35,638 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 129 states to 129 states and 139 transitions. [2021-02-22 02:00:35,638 INFO L78 Accepts]: Start accepts. Automaton has 129 states and 139 transitions. Word has length 40 [2021-02-22 02:00:35,639 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-22 02:00:35,639 INFO L480 AbstractCegarLoop]: Abstraction has 129 states and 139 transitions. [2021-02-22 02:00:35,639 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-02-22 02:00:35,639 INFO L276 IsEmpty]: Start isEmpty. Operand 129 states and 139 transitions. [2021-02-22 02:00:35,649 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2021-02-22 02:00:35,650 INFO L414 BasicCegarLoop]: Found error trace [2021-02-22 02:00:35,650 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] [2021-02-22 02:00:35,650 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-02-22 02:00:35,651 INFO L428 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-22 02:00:35,651 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-22 02:00:35,651 INFO L82 PathProgramCache]: Analyzing trace with hash -924058287, now seen corresponding path program 1 times [2021-02-22 02:00:35,651 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-22 02:00:35,652 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1495654772] [2021-02-22 02:00:35,652 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-22 02:00:35,657 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-22 02:00:35,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:00:35,786 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:00:35,787 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:00:35,788 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:00:35,788 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 02:00:35,792 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:00:35,793 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 02:00:35,798 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:00:35,799 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-02-22 02:00:35,818 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:00:35,819 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-02-22 02:00:35,822 WARN L141 QuantifierPusher]: treesize reduction 9, result has 83.3 percent of original size [2021-02-22 02:00:35,824 WARN L147 QuantifierPusher]: treesize reduction 9, result has 83.3 percent of original size 45 [2021-02-22 02:00:35,867 WARN L141 QuantifierPusher]: treesize reduction 5, result has 83.3 percent of original size [2021-02-22 02:00:35,869 WARN L147 QuantifierPusher]: treesize reduction 5, result has 83.3 percent of original size 25 [2021-02-22 02:00:35,871 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:00:35,872 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-02-22 02:00:35,892 WARN L141 QuantifierPusher]: treesize reduction 17, result has 51.4 percent of original size [2021-02-22 02:00:35,893 WARN L147 QuantifierPusher]: treesize reduction 17, result has 51.4 percent of original size 18 [2021-02-22 02:00:35,910 WARN L141 QuantifierPusher]: treesize reduction 17, result has 61.4 percent of original size [2021-02-22 02:00:35,913 WARN L147 QuantifierPusher]: treesize reduction 17, result has 61.4 percent of original size 27 [2021-02-22 02:00:35,934 WARN L141 QuantifierPusher]: treesize reduction 17, result has 62.2 percent of original size [2021-02-22 02:00:35,936 WARN L147 QuantifierPusher]: treesize reduction 17, result has 62.2 percent of original size 28 [2021-02-22 02:00:35,959 WARN L141 QuantifierPusher]: treesize reduction 14, result has 41.7 percent of original size [2021-02-22 02:00:35,960 WARN L147 QuantifierPusher]: treesize reduction 14, result has 41.7 percent of original size 10 [2021-02-22 02:00:35,973 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:00:35,974 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-22 02:00:35,987 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:00:35,987 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:00:36,003 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:00:36,004 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:00:36,048 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-22 02:00:36,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:00:36,057 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:00:36,058 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:00:36,066 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-22 02:00:36,066 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1495654772] [2021-02-22 02:00:36,067 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-22 02:00:36,067 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2021-02-22 02:00:36,067 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1092179790] [2021-02-22 02:00:36,068 INFO L460 AbstractCegarLoop]: Interpolant automaton has 14 states [2021-02-22 02:00:36,068 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-22 02:00:36,068 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-02-22 02:00:36,069 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2021-02-22 02:00:36,069 INFO L87 Difference]: Start difference. First operand 129 states and 139 transitions. Second operand 14 states. [2021-02-22 02:00:36,906 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-22 02:00:36,906 INFO L93 Difference]: Finished difference Result 219 states and 232 transitions. [2021-02-22 02:00:36,907 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-02-22 02:00:36,907 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 41 [2021-02-22 02:00:36,907 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-22 02:00:36,908 INFO L225 Difference]: With dead ends: 219 [2021-02-22 02:00:36,909 INFO L226 Difference]: Without dead ends: 189 [2021-02-22 02:00:36,910 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 109 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=204, Invalid=666, Unknown=0, NotChecked=0, Total=870 [2021-02-22 02:00:36,911 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 189 states. [2021-02-22 02:00:36,937 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 189 to 137. [2021-02-22 02:00:36,937 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 137 states. [2021-02-22 02:00:36,938 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 137 states to 137 states and 147 transitions. [2021-02-22 02:00:36,938 INFO L78 Accepts]: Start accepts. Automaton has 137 states and 147 transitions. Word has length 41 [2021-02-22 02:00:36,939 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-22 02:00:36,939 INFO L480 AbstractCegarLoop]: Abstraction has 137 states and 147 transitions. [2021-02-22 02:00:36,939 INFO L481 AbstractCegarLoop]: Interpolant automaton has 14 states. [2021-02-22 02:00:36,939 INFO L276 IsEmpty]: Start isEmpty. Operand 137 states and 147 transitions. [2021-02-22 02:00:36,940 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2021-02-22 02:00:36,940 INFO L414 BasicCegarLoop]: Found error trace [2021-02-22 02:00:36,940 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-22 02:00:36,940 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-02-22 02:00:36,941 INFO L428 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-22 02:00:36,941 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-22 02:00:36,941 INFO L82 PathProgramCache]: Analyzing trace with hash 1422998378, now seen corresponding path program 1 times [2021-02-22 02:00:36,941 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-22 02:00:36,942 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2092635844] [2021-02-22 02:00:36,942 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-22 02:00:37,004 WARN L141 QuantifierPusher]: treesize reduction 13, result has 96.0 percent of original size [2021-02-22 02:00:37,052 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-22 02:00:37,053 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:00:37,055 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-22 02:00:37,056 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:00:37,057 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 155 [2021-02-22 02:00:37,058 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 156 [2021-02-22 02:00:37,060 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-22 02:00:37,061 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:00:37,062 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-22 02:00:37,062 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:00:37,063 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 238 [2021-02-22 02:00:37,064 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 239 [2021-02-22 02:00:37,067 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-22 02:00:37,067 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:00:37,068 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-22 02:00:37,069 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:00:37,078 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 238 [2021-02-22 02:00:37,079 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 239 [2021-02-22 02:00:37,080 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-22 02:00:37,081 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:00:37,083 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-22 02:00:37,084 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:00:37,085 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-22 02:00:37,085 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:00:37,086 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 155 [2021-02-22 02:00:37,086 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 156 [2021-02-22 02:00:37,088 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-22 02:00:37,089 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:00:37,091 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 171 [2021-02-22 02:00:37,092 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 172 [2021-02-22 02:00:37,094 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-22 02:00:37,095 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:00:37,097 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-22 02:00:37,098 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:00:37,099 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-02-22 02:00:37,100 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-02-22 02:00:37,100 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-22 02:00:37,104 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:00:37,111 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-22 02:00:37,112 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:00:37,113 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-22 02:00:37,114 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:00:37,114 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 155 [2021-02-22 02:00:37,116 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 156 [2021-02-22 02:00:37,117 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-22 02:00:37,118 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:00:37,120 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-22 02:00:37,122 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:00:37,123 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 238 [2021-02-22 02:00:37,124 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 239 [2021-02-22 02:00:37,125 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-22 02:00:37,125 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:00:37,126 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-22 02:00:37,130 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:00:37,131 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 238 [2021-02-22 02:00:37,132 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 239 [2021-02-22 02:00:37,132 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-22 02:00:37,133 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:00:37,134 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-22 02:00:37,135 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:00:37,136 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-22 02:00:37,137 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:00:37,138 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 155 [2021-02-22 02:00:37,139 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 156 [2021-02-22 02:00:37,139 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-22 02:00:37,140 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:00:37,142 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 171 [2021-02-22 02:00:37,143 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 172 [2021-02-22 02:00:37,145 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-22 02:00:37,146 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:00:37,147 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 689 [2021-02-22 02:00:37,149 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 690 [2021-02-22 02:00:37,152 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-22 02:00:37,154 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:00:37,155 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 704 [2021-02-22 02:00:37,159 WARN L147 QuantifierPusher]: treesize reduction 13, result has 96.0 percent of original size 316 [2021-02-22 02:00:37,183 INFO L446 ElimStorePlain]: Different costs {0=[|v_#memory_int_40|, |v_#memory_$Pointer$.offset_25|, |v_#memory_$Pointer$.base_25|], 2=[|v_#memory_int_38|, |v_#memory_int_39|]} [2021-02-22 02:00:37,195 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:00:37,196 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 160 [2021-02-22 02:00:37,197 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:00:37,197 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:00:37,198 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:00:37,199 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:00:37,199 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-02-22 02:00:37,215 INFO L628 ElimStorePlain]: treesize reduction 557, result has 0.2 percent of original size [2021-02-22 02:00:37,216 INFO L518 ElimStorePlain]: Eliminatee |v_#memory_$Pointer$.offset_25| vanished before elimination [2021-02-22 02:00:37,216 INFO L518 ElimStorePlain]: Eliminatee |v_#memory_$Pointer$.base_25| vanished before elimination [2021-02-22 02:00:37,216 INFO L518 ElimStorePlain]: Eliminatee |v_#memory_int_38| vanished before elimination [2021-02-22 02:00:37,216 INFO L518 ElimStorePlain]: Eliminatee |v_#memory_int_39| vanished before elimination [2021-02-22 02:00:37,217 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:00:37,219 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:00:37,219 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 5 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-02-22 02:00:37,220 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 6 variables, input treesize:713, output treesize:1 [2021-02-22 02:00:37,224 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.IllegalArgumentException: cannot bring into simultaneous update form #memory_$Pointer$.base's outvar occurs in several conjuncts [(<= 0 (+ |v_main_#t~nondet4_7| 2147483648)), (= (let ((.cse0 (let ((.cse2 (store |v_#memory_$Pointer$.base_29| v_main_~x~0.base_28 (store (select |v_#memory_$Pointer$.base_29| v_main_~x~0.base_28) v_main_~x~0.offset_28 |v_main_#t~malloc5.base_3|)))) (store .cse2 |v_main_#t~malloc5.base_3| (store (select .cse2 |v_main_#t~malloc5.base_3|) (+ |v_main_#t~malloc5.offset_3| 4) v_main_~x~0.base_28))))) (store .cse0 v_main_~x~0.base_27 (let ((.cse1 (+ v_main_~x~0.offset_27 8))) (store (store (select .cse0 v_main_~x~0.base_27) v_main_~x~0.offset_27 v_main_~head~0.base_10) .cse1 (select (select |v_#memory_$Pointer$.base_25| v_main_~x~0.base_27) .cse1))))) |v_#memory_$Pointer$.base_25|), (= (let ((.cse0 (let ((.cse2 (store |v_#memory_$Pointer$.offset_29| v_main_~x~0.base_28 (store (select |v_#memory_$Pointer$.offset_29| v_main_~x~0.base_28) v_main_~x~0.offset_28 |v_main_#t~malloc5.offset_3|)))) (store .cse2 |v_main_#t~malloc5.base_3| (store (select .cse2 |v_main_#t~malloc5.base_3|) (+ |v_main_#t~malloc5.offset_3| 4) v_main_~x~0.offset_28))))) (store .cse0 v_main_~x~0.base_27 (let ((.cse1 (+ v_main_~x~0.offset_27 8))) (store (store (select .cse0 v_main_~x~0.base_27) v_main_~x~0.offset_27 v_main_~head~0.offset_10) .cse1 (select (select |v_#memory_$Pointer$.offset_25| v_main_~x~0.base_27) .cse1))))) |v_#memory_$Pointer$.offset_25|), (= (store |v_#memory_int_40| v_main_~x~0.base_27 (store (select |v_#memory_int_40| v_main_~x~0.base_27) (+ v_main_~x~0.offset_27 8) v_main_~state~0_10)) |v_#memory_int_24|), (= |v_main_#t~nondet8_7| 0), (= |v_#length_13| (store |v_#length_14| |v_main_#t~malloc5.base_3| 12)), (= (select |v_#valid_20| |v_main_#t~malloc5.base_3|) 0), (= |v_#memory_int_39| (store |v_#memory_int_28| v_main_~x~0.base_28 (store (select |v_#memory_int_28| v_main_~x~0.base_28) v_main_~x~0.offset_28 (select (select |v_#memory_int_39| v_main_~x~0.base_28) v_main_~x~0.offset_28)))), (< |v_main_#t~malloc5.base_3| |v_#StackHeapBarrier_6|), (< |v_main_#t~malloc5.base_3| 0), (<= 0 (+ |v_main_#t~nondet8_7| 2147483648)), (= |v_#valid_19| (store |v_#valid_20| |v_main_#t~malloc5.base_3| 1)), (<= |v_main_#t~nondet4_7| 2147483647), (= |v_#memory_int_38| (store |v_#memory_int_39| |v_main_#t~malloc5.base_3| (let ((.cse0 (+ |v_main_#t~malloc5.offset_3| 4))) (store (select |v_#memory_int_39| |v_main_#t~malloc5.base_3|) .cse0 (select (select |v_#memory_int_38| |v_main_#t~malloc5.base_3|) .cse0))))), (= (select (select (let ((.cse0 (store |v_#memory_$Pointer$.base_29| v_main_~x~0.base_28 (store (select |v_#memory_$Pointer$.base_29| v_main_~x~0.base_28) v_main_~x~0.offset_28 |v_main_#t~malloc5.base_3|)))) (store .cse0 |v_main_#t~malloc5.base_3| (store (select .cse0 |v_main_#t~malloc5.base_3|) (+ |v_main_#t~malloc5.offset_3| 4) v_main_~x~0.base_28))) v_main_~x~0.base_28) v_main_~x~0.offset_28) v_main_~x~0.base_27), (<= |v_main_#t~nondet8_7| 2147483647), (> |v_main_#t~nondet4_7| 0), (< v_main_~x~0.offset_27 0), (= |v_main_#t~malloc5.offset_3| 0), (= (select (select (let ((.cse0 (store |v_#memory_$Pointer$.offset_29| v_main_~x~0.base_28 (store (select |v_#memory_$Pointer$.offset_29| v_main_~x~0.base_28) v_main_~x~0.offset_28 |v_main_#t~malloc5.offset_3|)))) (store .cse0 |v_main_#t~malloc5.base_3| (store (select .cse0 |v_main_#t~malloc5.base_3|) (+ |v_main_#t~malloc5.offset_3| 4) v_main_~x~0.offset_28))) v_main_~x~0.base_28) v_main_~x~0.offset_28) v_main_~x~0.offset_27), (= |v_#memory_int_40| (store |v_#memory_int_38| v_main_~x~0.base_27 (store (select |v_#memory_int_38| v_main_~x~0.base_27) v_main_~x~0.offset_27 (select (select |v_#memory_int_40| v_main_~x~0.base_27) v_main_~x~0.offset_27))))] at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.SimultaneousUpdate.(SimultaneousUpdate.java:107) at de.uni_freiburg.informatik.ultimate.icfgtransformer.loopacceleration.werner.LoopAcceleratorLite.calculateSymbolicMemory(LoopAcceleratorLite.java:167) at de.uni_freiburg.informatik.ultimate.icfgtransformer.loopacceleration.werner.LoopAcceleratorLite.summarizeLoop(LoopAcceleratorLite.java:105) at de.uni_freiburg.informatik.ultimate.lib.acceleratedinterpolation.loopaccelerator.AcceleratorWernerOverapprox.accelerateLoop(AcceleratorWernerOverapprox.java:52) at de.uni_freiburg.informatik.ultimate.lib.acceleratedinterpolation.AcceleratedInterpolationCore.acceleratedInterpolationCoreIsCorrect(AcceleratedInterpolationCore.java:183) at de.uni_freiburg.informatik.ultimate.lib.acceleratedinterpolation.AcceleratedInterpolation.(AcceleratedInterpolation.java:162) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModulePreferences.construct(IpTcStrategyModulePreferences.java:145) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:100) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.isCorrect(IpTcStrategyModuleBase.java:56) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.checkFeasibility(AutomatonFreeRefinementEngine.java:241) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:165) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:84) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:74) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:511) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:437) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:372) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopUtils.getCegarLoopResult(CegarLoopUtils.java:68) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopUtils.getCegarLoopResult(CegarLoopUtils.java:62) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.iterateAllErrorsAtOnce(TraceAbstractionStarter.java:317) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:171) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:131) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:124) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2021-02-22 02:00:37,229 INFO L168 Benchmark]: Toolchain (without parser) took 6300.17 ms. Allocated memory was 151.0 MB in the beginning and 187.7 MB in the end (delta: 36.7 MB). Free memory was 126.6 MB in the beginning and 63.7 MB in the end (delta: 63.0 MB). Peak memory consumption was 100.2 MB. Max. memory is 8.0 GB. [2021-02-22 02:00:37,229 INFO L168 Benchmark]: CDTParser took 0.40 ms. Allocated memory is still 151.0 MB. Free memory is still 124.8 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-02-22 02:00:37,230 INFO L168 Benchmark]: CACSL2BoogieTranslator took 618.45 ms. Allocated memory is still 151.0 MB. Free memory was 125.6 MB in the beginning and 103.3 MB in the end (delta: 22.3 MB). Peak memory consumption was 22.0 MB. Max. memory is 8.0 GB. [2021-02-22 02:00:37,230 INFO L168 Benchmark]: Boogie Preprocessor took 79.66 ms. Allocated memory is still 151.0 MB. Free memory was 103.3 MB in the beginning and 131.9 MB in the end (delta: -28.6 MB). Peak memory consumption was 4.7 MB. Max. memory is 8.0 GB. [2021-02-22 02:00:37,231 INFO L168 Benchmark]: RCFGBuilder took 809.14 ms. Allocated memory is still 151.0 MB. Free memory was 131.9 MB in the beginning and 84.2 MB in the end (delta: 47.7 MB). Peak memory consumption was 48.2 MB. Max. memory is 8.0 GB. [2021-02-22 02:00:37,231 INFO L168 Benchmark]: TraceAbstraction took 4769.80 ms. Allocated memory was 151.0 MB in the beginning and 187.7 MB in the end (delta: 36.7 MB). Free memory was 83.7 MB in the beginning and 63.7 MB in the end (delta: 20.0 MB). Peak memory consumption was 57.7 MB. Max. memory is 8.0 GB. [2021-02-22 02:00:37,233 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.40 ms. Allocated memory is still 151.0 MB. Free memory is still 124.8 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 618.45 ms. Allocated memory is still 151.0 MB. Free memory was 125.6 MB in the beginning and 103.3 MB in the end (delta: 22.3 MB). Peak memory consumption was 22.0 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 79.66 ms. Allocated memory is still 151.0 MB. Free memory was 103.3 MB in the beginning and 131.9 MB in the end (delta: -28.6 MB). Peak memory consumption was 4.7 MB. Max. memory is 8.0 GB. * RCFGBuilder took 809.14 ms. Allocated memory is still 151.0 MB. Free memory was 131.9 MB in the beginning and 84.2 MB in the end (delta: 47.7 MB). Peak memory consumption was 48.2 MB. Max. memory is 8.0 GB. * TraceAbstraction took 4769.80 ms. Allocated memory was 151.0 MB in the beginning and 187.7 MB in the end (delta: 36.7 MB). Free memory was 83.7 MB in the beginning and 63.7 MB in the end (delta: 20.0 MB). Peak memory consumption was 57.7 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: IllegalArgumentException: cannot bring into simultaneous update form #memory_$Pointer$.base's outvar occurs in several conjuncts [(<= 0 (+ |v_main_#t~nondet4_7| 2147483648)), (= (let ((.cse0 (let ((.cse2 (store |v_#memory_$Pointer$.base_29| v_main_~x~0.base_28 (store (select |v_#memory_$Pointer$.base_29| v_main_~x~0.base_28) v_main_~x~0.offset_28 |v_main_#t~malloc5.base_3|)))) (store .cse2 |v_main_#t~malloc5.base_3| (store (select .cse2 |v_main_#t~malloc5.base_3|) (+ |v_main_#t~malloc5.offset_3| 4) v_main_~x~0.base_28))))) (store .cse0 v_main_~x~0.base_27 (let ((.cse1 (+ v_main_~x~0.offset_27 8))) (store (store (select .cse0 v_main_~x~0.base_27) v_main_~x~0.offset_27 v_main_~head~0.base_10) .cse1 (select (select |v_#memory_$Pointer$.base_25| v_main_~x~0.base_27) .cse1))))) |v_#memory_$Pointer$.base_25|), (= (let ((.cse0 (let ((.cse2 (store |v_#memory_$Pointer$.offset_29| v_main_~x~0.base_28 (store (select |v_#memory_$Pointer$.offset_29| v_main_~x~0.base_28) v_main_~x~0.offset_28 |v_main_#t~malloc5.offset_3|)))) (store .cse2 |v_main_#t~malloc5.base_3| (store (select .cse2 |v_main_#t~malloc5.base_3|) (+ |v_main_#t~malloc5.offset_3| 4) v_main_~x~0.offset_28))))) (store .cse0 v_main_~x~0.base_27 (let ((.cse1 (+ v_main_~x~0.offset_27 8))) (store (store (select .cse0 v_main_~x~0.base_27) v_main_~x~0.offset_27 v_main_~head~0.offset_10) .cse1 (select (select |v_#memory_$Pointer$.offset_25| v_main_~x~0.base_27) .cse1))))) |v_#memory_$Pointer$.offset_25|), (= (store |v_#memory_int_40| v_main_~x~0.base_27 (store (select |v_#memory_int_40| v_main_~x~0.base_27) (+ v_main_~x~0.offset_27 8) v_main_~state~0_10)) |v_#memory_int_24|), (= |v_main_#t~nondet8_7| 0), (= |v_#length_13| (store |v_#length_14| |v_main_#t~malloc5.base_3| 12)), (= (select |v_#valid_20| |v_main_#t~malloc5.base_3|) 0), (= |v_#memory_int_39| (store |v_#memory_int_28| v_main_~x~0.base_28 (store (select |v_#memory_int_28| v_main_~x~0.base_28) v_main_~x~0.offset_28 (select (select |v_#memory_int_39| v_main_~x~0.base_28) v_main_~x~0.offset_28)))), (< |v_main_#t~malloc5.base_3| |v_#StackHeapBarrier_6|), (< |v_main_#t~malloc5.base_3| 0), (<= 0 (+ |v_main_#t~nondet8_7| 2147483648)), (= |v_#valid_19| (store |v_#valid_20| |v_main_#t~malloc5.base_3| 1)), (<= |v_main_#t~nondet4_7| 2147483647), (= |v_#memory_int_38| (store |v_#memory_int_39| |v_main_#t~malloc5.base_3| (let ((.cse0 (+ |v_main_#t~malloc5.offset_3| 4))) (store (select |v_#memory_int_39| |v_main_#t~malloc5.base_3|) .cse0 (select (select |v_#memory_int_38| |v_main_#t~malloc5.base_3|) .cse0))))), (= (select (select (let ((.cse0 (store |v_#memory_$Pointer$.base_29| v_main_~x~0.base_28 (store (select |v_#memory_$Pointer$.base_29| v_main_~x~0.base_28) v_main_~x~0.offset_28 |v_main_#t~malloc5.base_3|)))) (store .cse0 |v_main_#t~malloc5.base_3| (store (select .cse0 |v_main_#t~malloc5.base_3|) (+ |v_main_#t~malloc5.offset_3| 4) v_main_~x~0.base_28))) v_main_~x~0.base_28) v_main_~x~0.offset_28) v_main_~x~0.base_27), (<= |v_main_#t~nondet8_7| 2147483647), (> |v_main_#t~nondet4_7| 0), (< v_main_~x~0.offset_27 0), (= |v_main_#t~malloc5.offset_3| 0), (= (select (select (let ((.cse0 (store |v_#memory_$Pointer$.offset_29| v_main_~x~0.base_28 (store (select |v_#memory_$Pointer$.offset_29| v_main_~x~0.base_28) v_main_~x~0.offset_28 |v_main_#t~malloc5.offset_3|)))) (store .cse0 |v_main_#t~malloc5.base_3| (store (select .cse0 |v_main_#t~malloc5.base_3|) (+ |v_main_#t~malloc5.offset_3| 4) v_main_~x~0.offset_28))) v_main_~x~0.base_28) v_main_~x~0.offset_28) v_main_~x~0.offset_27), (= |v_#memory_int_40| (store |v_#memory_int_38| v_main_~x~0.base_27 (store (select |v_#memory_int_38| v_main_~x~0.base_27) v_main_~x~0.offset_27 (select (select |v_#memory_int_40| v_main_~x~0.base_27) v_main_~x~0.offset_27))))] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: IllegalArgumentException: cannot bring into simultaneous update form #memory_$Pointer$.base's outvar occurs in several conjuncts [(<= 0 (+ |v_main_#t~nondet4_7| 2147483648)), (= (let ((.cse0 (let ((.cse2 (store |v_#memory_$Pointer$.base_29| v_main_~x~0.base_28 (store (select |v_#memory_$Pointer$.base_29| v_main_~x~0.base_28) v_main_~x~0.offset_28 |v_main_#t~malloc5.base_3|)))) (store .cse2 |v_main_#t~malloc5.base_3| (store (select .cse2 |v_main_#t~malloc5.base_3|) (+ |v_main_#t~malloc5.offset_3| 4) v_main_~x~0.base_28))))) (store .cse0 v_main_~x~0.base_27 (let ((.cse1 (+ v_main_~x~0.offset_27 8))) (store (store (select .cse0 v_main_~x~0.base_27) v_main_~x~0.offset_27 v_main_~head~0.base_10) .cse1 (select (select |v_#memory_$Pointer$.base_25| v_main_~x~0.base_27) .cse1))))) |v_#memory_$Pointer$.base_25|), (= (let ((.cse0 (let ((.cse2 (store |v_#memory_$Pointer$.offset_29| v_main_~x~0.base_28 (store (select |v_#memory_$Pointer$.offset_29| v_main_~x~0.base_28) v_main_~x~0.offset_28 |v_main_#t~malloc5.offset_3|)))) (store .cse2 |v_main_#t~malloc5.base_3| (store (select .cse2 |v_main_#t~malloc5.base_3|) (+ |v_main_#t~malloc5.offset_3| 4) v_main_~x~0.offset_28))))) (store .cse0 v_main_~x~0.base_27 (let ((.cse1 (+ v_main_~x~0.offset_27 8))) (store (store (select .cse0 v_main_~x~0.base_27) v_main_~x~0.offset_27 v_main_~head~0.offset_10) .cse1 (select (select |v_#memory_$Pointer$.offset_25| v_main_~x~0.base_27) .cse1))))) |v_#memory_$Pointer$.offset_25|), (= (store |v_#memory_int_40| v_main_~x~0.base_27 (store (select |v_#memory_int_40| v_main_~x~0.base_27) (+ v_main_~x~0.offset_27 8) v_main_~state~0_10)) |v_#memory_int_24|), (= |v_main_#t~nondet8_7| 0), (= |v_#length_13| (store |v_#length_14| |v_main_#t~malloc5.base_3| 12)), (= (select |v_#valid_20| |v_main_#t~malloc5.base_3|) 0), (= |v_#memory_int_39| (store |v_#memory_int_28| v_main_~x~0.base_28 (store (select |v_#memory_int_28| v_main_~x~0.base_28) v_main_~x~0.offset_28 (select (select |v_#memory_int_39| v_main_~x~0.base_28) v_main_~x~0.offset_28)))), (< |v_main_#t~malloc5.base_3| |v_#StackHeapBarrier_6|), (< |v_main_#t~malloc5.base_3| 0), (<= 0 (+ |v_main_#t~nondet8_7| 2147483648)), (= |v_#valid_19| (store |v_#valid_20| |v_main_#t~malloc5.base_3| 1)), (<= |v_main_#t~nondet4_7| 2147483647), (= |v_#memory_int_38| (store |v_#memory_int_39| |v_main_#t~malloc5.base_3| (let ((.cse0 (+ |v_main_#t~malloc5.offset_3| 4))) (store (select |v_#memory_int_39| |v_main_#t~malloc5.base_3|) .cse0 (select (select |v_#memory_int_38| |v_main_#t~malloc5.base_3|) .cse0))))), (= (select (select (let ((.cse0 (store |v_#memory_$Pointer$.base_29| v_main_~x~0.base_28 (store (select |v_#memory_$Pointer$.base_29| v_main_~x~0.base_28) v_main_~x~0.offset_28 |v_main_#t~malloc5.base_3|)))) (store .cse0 |v_main_#t~malloc5.base_3| (store (select .cse0 |v_main_#t~malloc5.base_3|) (+ |v_main_#t~malloc5.offset_3| 4) v_main_~x~0.base_28))) v_main_~x~0.base_28) v_main_~x~0.offset_28) v_main_~x~0.base_27), (<= |v_main_#t~nondet8_7| 2147483647), (> |v_main_#t~nondet4_7| 0), (< v_main_~x~0.offset_27 0), (= |v_main_#t~malloc5.offset_3| 0), (= (select (select (let ((.cse0 (store |v_#memory_$Pointer$.offset_29| v_main_~x~0.base_28 (store (select |v_#memory_$Pointer$.offset_29| v_main_~x~0.base_28) v_main_~x~0.offset_28 |v_main_#t~malloc5.offset_3|)))) (store .cse0 |v_main_#t~malloc5.base_3| (store (select .cse0 |v_main_#t~malloc5.base_3|) (+ |v_main_#t~malloc5.offset_3| 4) v_main_~x~0.offset_28))) v_main_~x~0.base_28) v_main_~x~0.offset_28) v_main_~x~0.offset_27), (= |v_#memory_int_40| (store |v_#memory_int_38| v_main_~x~0.base_27 (store (select |v_#memory_int_38| v_main_~x~0.base_27) v_main_~x~0.offset_27 (select (select |v_#memory_int_40| v_main_~x~0.base_27) v_main_~x~0.offset_27))))]: de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.SimultaneousUpdate.(SimultaneousUpdate.java:107) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...