/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/default/taipan/svcomp-Reach-32bit-Taipan_Default.epf -tc ../../../trunk/examples/toolchains/AutomizerC.xml --sifa.abstract.domain IntervalDomain -i ../sv-benchmarks/c/ldv-regression/test22-1.c -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-f954360 [2023-03-31 22:49:20,119 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-03-31 22:49:20,121 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-03-31 22:49:20,159 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-03-31 22:49:20,159 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-03-31 22:49:20,162 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-03-31 22:49:20,165 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-03-31 22:49:20,167 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-03-31 22:49:20,169 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-03-31 22:49:20,173 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-03-31 22:49:20,174 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-03-31 22:49:20,176 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-03-31 22:49:20,176 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-03-31 22:49:20,178 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-03-31 22:49:20,179 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-03-31 22:49:20,180 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-03-31 22:49:20,181 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-03-31 22:49:20,182 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-03-31 22:49:20,183 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-03-31 22:49:20,188 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-03-31 22:49:20,189 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-03-31 22:49:20,190 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-03-31 22:49:20,191 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-03-31 22:49:20,192 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-03-31 22:49:20,200 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-03-31 22:49:20,200 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-03-31 22:49:20,200 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-03-31 22:49:20,202 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-03-31 22:49:20,202 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-03-31 22:49:20,203 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-03-31 22:49:20,203 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-03-31 22:49:20,204 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-03-31 22:49:20,205 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-03-31 22:49:20,206 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-03-31 22:49:20,207 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-03-31 22:49:20,207 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-03-31 22:49:20,208 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-03-31 22:49:20,208 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-03-31 22:49:20,208 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-03-31 22:49:20,209 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-03-31 22:49:20,209 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-03-31 22:49:20,211 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/taipan/svcomp-Reach-32bit-Taipan_Default.epf [2023-03-31 22:49:20,238 INFO L113 SettingsManager]: Loading preferences was successful [2023-03-31 22:49:20,238 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-03-31 22:49:20,239 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-03-31 22:49:20,239 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-03-31 22:49:20,240 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-03-31 22:49:20,240 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-03-31 22:49:20,240 INFO L138 SettingsManager]: * User list type=DISABLED [2023-03-31 22:49:20,240 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-03-31 22:49:20,241 INFO L138 SettingsManager]: * Explicit value domain=true [2023-03-31 22:49:20,241 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-03-31 22:49:20,241 INFO L138 SettingsManager]: * Octagon Domain=false [2023-03-31 22:49:20,242 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2023-03-31 22:49:20,242 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-03-31 22:49:20,242 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-03-31 22:49:20,242 INFO L138 SettingsManager]: * Interval Domain=false [2023-03-31 22:49:20,242 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-03-31 22:49:20,242 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-03-31 22:49:20,242 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2023-03-31 22:49:20,243 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-03-31 22:49:20,243 INFO L138 SettingsManager]: * sizeof long=4 [2023-03-31 22:49:20,243 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-03-31 22:49:20,244 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-03-31 22:49:20,244 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-03-31 22:49:20,244 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-03-31 22:49:20,244 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-03-31 22:49:20,244 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-03-31 22:49:20,244 INFO L138 SettingsManager]: * sizeof long double=12 [2023-03-31 22:49:20,245 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-03-31 22:49:20,245 INFO L138 SettingsManager]: * Use constant arrays=true [2023-03-31 22:49:20,245 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-03-31 22:49:20,245 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-03-31 22:49:20,245 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-03-31 22:49:20,245 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-03-31 22:49:20,246 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-03-31 22:49:20,246 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2023-03-31 22:49:20,246 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-03-31 22:49:20,246 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-03-31 22:49:20,246 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-03-31 22:49:20,246 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-03-31 22:49:20,246 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-03-31 22:49:20,247 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-03-31 22:49:20,247 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Abstract Domain -> IntervalDomain [2023-03-31 22:49:20,499 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-03-31 22:49:20,529 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-03-31 22:49:20,532 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-03-31 22:49:20,533 INFO L271 PluginConnector]: Initializing CDTParser... [2023-03-31 22:49:20,533 INFO L275 PluginConnector]: CDTParser initialized [2023-03-31 22:49:20,535 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-regression/test22-1.c [2023-03-31 22:49:21,686 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-03-31 22:49:21,877 INFO L351 CDTParser]: Found 1 translation units. [2023-03-31 22:49:21,877 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-regression/test22-1.c [2023-03-31 22:49:21,883 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9d0c5bded/08932db807224b48adf447c079867b2c/FLAGd33933de6 [2023-03-31 22:49:21,900 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9d0c5bded/08932db807224b48adf447c079867b2c [2023-03-31 22:49:21,902 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-03-31 22:49:21,903 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2023-03-31 22:49:21,908 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-03-31 22:49:21,908 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-03-31 22:49:21,911 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-03-31 22:49:21,912 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.03 10:49:21" (1/1) ... [2023-03-31 22:49:21,913 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@22afdf33 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 10:49:21, skipping insertion in model container [2023-03-31 22:49:21,913 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.03 10:49:21" (1/1) ... [2023-03-31 22:49:21,919 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-03-31 22:49:21,932 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-03-31 22:49:22,086 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-regression/test22-1.c[1029,1042] [2023-03-31 22:49:22,089 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-03-31 22:49:22,099 INFO L203 MainTranslator]: Completed pre-run [2023-03-31 22:49:22,112 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-regression/test22-1.c[1029,1042] [2023-03-31 22:49:22,112 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-03-31 22:49:22,125 INFO L208 MainTranslator]: Completed translation [2023-03-31 22:49:22,125 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 10:49:22 WrapperNode [2023-03-31 22:49:22,125 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-03-31 22:49:22,126 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-03-31 22:49:22,126 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-03-31 22:49:22,126 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-03-31 22:49:22,133 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 10:49:22" (1/1) ... [2023-03-31 22:49:22,133 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 10:49:22" (1/1) ... [2023-03-31 22:49:22,139 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 10:49:22" (1/1) ... [2023-03-31 22:49:22,139 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 10:49:22" (1/1) ... [2023-03-31 22:49:22,146 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 10:49:22" (1/1) ... [2023-03-31 22:49:22,148 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 10:49:22" (1/1) ... [2023-03-31 22:49:22,150 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 10:49:22" (1/1) ... [2023-03-31 22:49:22,151 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 10:49:22" (1/1) ... [2023-03-31 22:49:22,154 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-03-31 22:49:22,155 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-03-31 22:49:22,155 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-03-31 22:49:22,155 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-03-31 22:49:22,156 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 10:49:22" (1/1) ... [2023-03-31 22:49:22,164 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-03-31 22:49:22,176 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-03-31 22:49:22,190 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-03-31 22:49:22,191 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-03-31 22:49:22,221 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2023-03-31 22:49:22,221 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-03-31 22:49:22,221 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2023-03-31 22:49:22,221 INFO L138 BoogieDeclarations]: Found implementation of procedure init [2023-03-31 22:49:22,221 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dummy [2023-03-31 22:49:22,221 INFO L138 BoogieDeclarations]: Found implementation of procedure check [2023-03-31 22:49:22,221 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2023-03-31 22:49:22,221 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2023-03-31 22:49:22,222 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2023-03-31 22:49:22,222 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2023-03-31 22:49:22,222 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-03-31 22:49:22,222 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2023-03-31 22:49:22,222 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2023-03-31 22:49:22,222 INFO L130 BoogieDeclarations]: Found specification of procedure init [2023-03-31 22:49:22,222 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-03-31 22:49:22,222 INFO L130 BoogieDeclarations]: Found specification of procedure get_dummy [2023-03-31 22:49:22,223 INFO L130 BoogieDeclarations]: Found specification of procedure check [2023-03-31 22:49:22,223 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-03-31 22:49:22,223 INFO L130 BoogieDeclarations]: Found specification of procedure main [2023-03-31 22:49:22,223 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2023-03-31 22:49:22,223 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-03-31 22:49:22,223 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-03-31 22:49:22,223 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-03-31 22:49:22,284 INFO L236 CfgBuilder]: Building ICFG [2023-03-31 22:49:22,286 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-03-31 22:49:22,483 INFO L277 CfgBuilder]: Performing block encoding [2023-03-31 22:49:22,557 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-03-31 22:49:22,557 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-03-31 22:49:22,559 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.03 10:49:22 BoogieIcfgContainer [2023-03-31 22:49:22,560 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-03-31 22:49:22,562 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-03-31 22:49:22,562 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-03-31 22:49:22,565 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-03-31 22:49:22,565 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 31.03 10:49:21" (1/3) ... [2023-03-31 22:49:22,566 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@25d035c4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.03 10:49:22, skipping insertion in model container [2023-03-31 22:49:22,566 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 10:49:22" (2/3) ... [2023-03-31 22:49:22,566 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@25d035c4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.03 10:49:22, skipping insertion in model container [2023-03-31 22:49:22,566 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.03 10:49:22" (3/3) ... [2023-03-31 22:49:22,567 INFO L112 eAbstractionObserver]: Analyzing ICFG test22-1.c [2023-03-31 22:49:22,584 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-03-31 22:49:22,584 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-03-31 22:49:22,638 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-03-31 22:49:22,648 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@d45f4cc, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-03-31 22:49:22,649 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-03-31 22:49:22,653 INFO L276 IsEmpty]: Start isEmpty. Operand has 30 states, 16 states have (on average 1.3125) internal successors, (21), 17 states have internal predecessors, (21), 7 states have call successors, (7), 5 states have call predecessors, (7), 5 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2023-03-31 22:49:22,660 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2023-03-31 22:49:22,660 INFO L187 NwaCegarLoop]: Found error trace [2023-03-31 22:49:22,661 INFO L195 NwaCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-03-31 22:49:22,663 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-03-31 22:49:22,670 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-03-31 22:49:22,670 INFO L85 PathProgramCache]: Analyzing trace with hash 1399689756, now seen corresponding path program 1 times [2023-03-31 22:49:22,679 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-03-31 22:49:22,680 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [613666456] [2023-03-31 22:49:22,680 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 22:49:22,681 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-03-31 22:49:22,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 22:49:22,905 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-03-31 22:49:22,905 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-03-31 22:49:22,906 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [613666456] [2023-03-31 22:49:22,906 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [613666456] provided 1 perfect and 0 imperfect interpolant sequences [2023-03-31 22:49:22,906 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-03-31 22:49:22,907 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-03-31 22:49:22,908 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [678947053] [2023-03-31 22:49:22,908 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-03-31 22:49:22,911 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-03-31 22:49:22,911 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-03-31 22:49:22,933 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-03-31 22:49:22,934 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-03-31 22:49:22,937 INFO L87 Difference]: Start difference. First operand has 30 states, 16 states have (on average 1.3125) internal successors, (21), 17 states have internal predecessors, (21), 7 states have call successors, (7), 5 states have call predecessors, (7), 5 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) Second operand has 2 states, 2 states have (on average 6.0) internal successors, (12), 2 states have internal predecessors, (12), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2023-03-31 22:49:22,979 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-03-31 22:49:22,979 INFO L93 Difference]: Finished difference Result 42 states and 47 transitions. [2023-03-31 22:49:22,988 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-03-31 22:49:22,989 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 6.0) internal successors, (12), 2 states have internal predecessors, (12), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 27 [2023-03-31 22:49:22,990 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-03-31 22:49:22,995 INFO L225 Difference]: With dead ends: 42 [2023-03-31 22:49:22,995 INFO L226 Difference]: Without dead ends: 25 [2023-03-31 22:49:22,997 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-03-31 22:49:23,000 INFO L413 NwaCegarLoop]: 28 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 28 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-03-31 22:49:23,001 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 28 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-03-31 22:49:23,015 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2023-03-31 22:49:23,042 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 25. [2023-03-31 22:49:23,044 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25 states, 13 states have (on average 1.0769230769230769) internal successors, (14), 13 states have internal predecessors, (14), 7 states have call successors, (7), 5 states have call predecessors, (7), 4 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2023-03-31 22:49:23,046 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 27 transitions. [2023-03-31 22:49:23,047 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 27 transitions. Word has length 27 [2023-03-31 22:49:23,048 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-03-31 22:49:23,049 INFO L495 AbstractCegarLoop]: Abstraction has 25 states and 27 transitions. [2023-03-31 22:49:23,049 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 6.0) internal successors, (12), 2 states have internal predecessors, (12), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2023-03-31 22:49:23,049 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 27 transitions. [2023-03-31 22:49:23,050 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2023-03-31 22:49:23,050 INFO L187 NwaCegarLoop]: Found error trace [2023-03-31 22:49:23,050 INFO L195 NwaCegarLoop]: trace histogram [3, 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] [2023-03-31 22:49:23,051 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-03-31 22:49:23,067 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-03-31 22:49:23,070 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-03-31 22:49:23,070 INFO L85 PathProgramCache]: Analyzing trace with hash -1813162942, now seen corresponding path program 1 times [2023-03-31 22:49:23,070 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-03-31 22:49:23,071 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [799348225] [2023-03-31 22:49:23,071 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 22:49:23,071 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-03-31 22:49:23,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 22:49:23,551 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-03-31 22:49:23,551 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-03-31 22:49:23,551 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [799348225] [2023-03-31 22:49:23,552 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [799348225] provided 1 perfect and 0 imperfect interpolant sequences [2023-03-31 22:49:23,552 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-03-31 22:49:23,552 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-03-31 22:49:23,552 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2009583901] [2023-03-31 22:49:23,552 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-03-31 22:49:23,553 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-03-31 22:49:23,553 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-03-31 22:49:23,554 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-03-31 22:49:23,554 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-03-31 22:49:23,554 INFO L87 Difference]: Start difference. First operand 25 states and 27 transitions. Second operand has 5 states, 5 states have (on average 2.6) internal successors, (13), 5 states have internal predecessors, (13), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2023-03-31 22:49:23,656 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-03-31 22:49:23,656 INFO L93 Difference]: Finished difference Result 34 states and 36 transitions. [2023-03-31 22:49:23,656 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-03-31 22:49:23,657 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.6) internal successors, (13), 5 states have internal predecessors, (13), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 28 [2023-03-31 22:49:23,658 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-03-31 22:49:23,660 INFO L225 Difference]: With dead ends: 34 [2023-03-31 22:49:23,660 INFO L226 Difference]: Without dead ends: 27 [2023-03-31 22:49:23,665 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-03-31 22:49:23,670 INFO L413 NwaCegarLoop]: 19 mSDtfsCounter, 9 mSDsluCounter, 43 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 62 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-03-31 22:49:23,671 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 62 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-03-31 22:49:23,671 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2023-03-31 22:49:23,676 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 27. [2023-03-31 22:49:23,676 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27 states, 15 states have (on average 1.0666666666666667) internal successors, (16), 15 states have internal predecessors, (16), 7 states have call successors, (7), 5 states have call predecessors, (7), 4 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2023-03-31 22:49:23,677 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 29 transitions. [2023-03-31 22:49:23,677 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 29 transitions. Word has length 28 [2023-03-31 22:49:23,677 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-03-31 22:49:23,677 INFO L495 AbstractCegarLoop]: Abstraction has 27 states and 29 transitions. [2023-03-31 22:49:23,677 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.6) internal successors, (13), 5 states have internal predecessors, (13), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2023-03-31 22:49:23,678 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 29 transitions. [2023-03-31 22:49:23,678 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2023-03-31 22:49:23,678 INFO L187 NwaCegarLoop]: Found error trace [2023-03-31 22:49:23,679 INFO L195 NwaCegarLoop]: trace histogram [3, 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] [2023-03-31 22:49:23,679 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-03-31 22:49:23,679 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-03-31 22:49:23,679 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-03-31 22:49:23,679 INFO L85 PathProgramCache]: Analyzing trace with hash 1491747335, now seen corresponding path program 1 times [2023-03-31 22:49:23,680 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-03-31 22:49:23,680 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1588347433] [2023-03-31 22:49:23,680 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 22:49:23,680 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-03-31 22:49:23,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 22:49:24,136 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-03-31 22:49:24,136 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-03-31 22:49:24,136 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1588347433] [2023-03-31 22:49:24,137 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1588347433] provided 0 perfect and 1 imperfect interpolant sequences [2023-03-31 22:49:24,137 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1525284475] [2023-03-31 22:49:24,137 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 22:49:24,138 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-03-31 22:49:24,138 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-03-31 22:49:24,141 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-03-31 22:49:24,161 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-03-31 22:49:24,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 22:49:24,245 INFO L262 TraceCheckSpWp]: Trace formula consists of 193 conjuncts, 19 conjunts are in the unsatisfiable core [2023-03-31 22:49:24,253 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-03-31 22:49:24,563 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 12 [2023-03-31 22:49:24,581 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-03-31 22:49:24,582 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-03-31 22:49:24,708 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-03-31 22:49:24,710 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1525284475] provided 0 perfect and 2 imperfect interpolant sequences [2023-03-31 22:49:24,711 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [141543111] [2023-03-31 22:49:24,731 INFO L159 IcfgInterpreter]: Started Sifa with 25 locations of interest [2023-03-31 22:49:24,731 INFO L166 IcfgInterpreter]: Building call graph [2023-03-31 22:49:24,739 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-03-31 22:49:24,744 INFO L176 IcfgInterpreter]: Starting interpretation [2023-03-31 22:49:24,745 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-03-31 22:49:24,888 INFO L197 IcfgInterpreter]: Interpreting procedure main with input of size 21 for LOIs [2023-03-31 22:49:25,264 INFO L197 IcfgInterpreter]: Interpreting procedure check with input of size 26 for LOIs [2023-03-31 22:49:25,272 INFO L197 IcfgInterpreter]: Interpreting procedure get_dummy with input of size 18 for LOIs [2023-03-31 22:49:25,286 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.init with input of size 19 for LOIs [2023-03-31 22:49:25,302 INFO L197 IcfgInterpreter]: Interpreting procedure init with input of size 21 for LOIs [2023-03-31 22:49:25,311 INFO L180 IcfgInterpreter]: Interpretation finished [2023-03-31 22:49:25,937 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '424#(and (= |~#d2~0.offset| 0) (= |~#d1~0.base| 4) (= 5 |~#d2~0.base|) (= |~#d1~0.offset| 0) (= |#NULL.offset| 0) (<= 0 |#StackHeapBarrier|) (= |#NULL.base| 0))' at error location [2023-03-31 22:49:25,937 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2023-03-31 22:49:25,937 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-03-31 22:49:25,938 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 6, 6] total 15 [2023-03-31 22:49:25,938 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [222486474] [2023-03-31 22:49:25,938 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-03-31 22:49:25,938 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2023-03-31 22:49:25,939 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-03-31 22:49:25,939 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2023-03-31 22:49:25,940 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=89, Invalid=605, Unknown=8, NotChecked=0, Total=702 [2023-03-31 22:49:25,941 INFO L87 Difference]: Start difference. First operand 27 states and 29 transitions. Second operand has 15 states, 15 states have (on average 1.8666666666666667) internal successors, (28), 15 states have internal predecessors, (28), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-03-31 22:49:26,227 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-03-31 22:49:26,227 INFO L93 Difference]: Finished difference Result 40 states and 44 transitions. [2023-03-31 22:49:26,229 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-03-31 22:49:26,229 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 1.8666666666666667) internal successors, (28), 15 states have internal predecessors, (28), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 30 [2023-03-31 22:49:26,230 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-03-31 22:49:26,230 INFO L225 Difference]: With dead ends: 40 [2023-03-31 22:49:26,230 INFO L226 Difference]: Without dead ends: 33 [2023-03-31 22:49:26,231 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 104 GetRequests, 71 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 323 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=178, Invalid=1004, Unknown=8, NotChecked=0, Total=1190 [2023-03-31 22:49:26,232 INFO L413 NwaCegarLoop]: 19 mSDtfsCounter, 32 mSDsluCounter, 98 mSDsCounter, 0 mSdLazyCounter, 76 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 117 SdHoareTripleChecker+Invalid, 80 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 76 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-03-31 22:49:26,234 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [33 Valid, 117 Invalid, 80 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 76 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-03-31 22:49:26,236 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2023-03-31 22:49:26,240 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 33. [2023-03-31 22:49:26,242 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33 states, 21 states have (on average 1.0476190476190477) internal successors, (22), 21 states have internal predecessors, (22), 7 states have call successors, (7), 5 states have call predecessors, (7), 4 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2023-03-31 22:49:26,245 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 35 transitions. [2023-03-31 22:49:26,245 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 35 transitions. Word has length 30 [2023-03-31 22:49:26,245 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-03-31 22:49:26,246 INFO L495 AbstractCegarLoop]: Abstraction has 33 states and 35 transitions. [2023-03-31 22:49:26,246 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 1.8666666666666667) internal successors, (28), 15 states have internal predecessors, (28), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-03-31 22:49:26,246 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 35 transitions. [2023-03-31 22:49:26,248 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2023-03-31 22:49:26,248 INFO L187 NwaCegarLoop]: Found error trace [2023-03-31 22:49:26,248 INFO L195 NwaCegarLoop]: trace histogram [5, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-03-31 22:49:26,255 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-03-31 22:49:26,454 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-03-31 22:49:26,454 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-03-31 22:49:26,454 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-03-31 22:49:26,455 INFO L85 PathProgramCache]: Analyzing trace with hash -1040442410, now seen corresponding path program 2 times [2023-03-31 22:49:26,455 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-03-31 22:49:26,455 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [576263580] [2023-03-31 22:49:26,455 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 22:49:26,455 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-03-31 22:49:26,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 22:49:26,724 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-03-31 22:49:26,724 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-03-31 22:49:26,724 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [576263580] [2023-03-31 22:49:26,724 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [576263580] provided 0 perfect and 1 imperfect interpolant sequences [2023-03-31 22:49:26,724 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1177147993] [2023-03-31 22:49:26,725 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-03-31 22:49:26,725 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-03-31 22:49:26,725 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-03-31 22:49:26,726 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-03-31 22:49:26,742 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-03-31 22:49:26,814 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2023-03-31 22:49:26,815 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-03-31 22:49:26,817 INFO L262 TraceCheckSpWp]: Trace formula consists of 198 conjuncts, 38 conjunts are in the unsatisfiable core [2023-03-31 22:49:26,823 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-03-31 22:49:27,280 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-03-31 22:49:27,281 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 71 treesize of output 79 [2023-03-31 22:49:27,317 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 7 proven. 4 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2023-03-31 22:49:27,318 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-03-31 22:49:27,653 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 1 [2023-03-31 22:49:27,672 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2023-03-31 22:49:27,672 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1177147993] provided 0 perfect and 2 imperfect interpolant sequences [2023-03-31 22:49:27,674 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1752835037] [2023-03-31 22:49:27,679 INFO L159 IcfgInterpreter]: Started Sifa with 25 locations of interest [2023-03-31 22:49:27,679 INFO L166 IcfgInterpreter]: Building call graph [2023-03-31 22:49:27,679 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-03-31 22:49:27,680 INFO L176 IcfgInterpreter]: Starting interpretation [2023-03-31 22:49:27,680 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-03-31 22:49:27,727 INFO L197 IcfgInterpreter]: Interpreting procedure main with input of size 21 for LOIs [2023-03-31 22:49:27,960 INFO L197 IcfgInterpreter]: Interpreting procedure check with input of size 26 for LOIs [2023-03-31 22:49:27,966 INFO L197 IcfgInterpreter]: Interpreting procedure get_dummy with input of size 18 for LOIs [2023-03-31 22:49:27,977 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.init with input of size 19 for LOIs [2023-03-31 22:49:27,997 INFO L197 IcfgInterpreter]: Interpreting procedure init with input of size 21 for LOIs [2023-03-31 22:49:28,008 INFO L180 IcfgInterpreter]: Interpretation finished [2023-03-31 22:49:30,649 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '802#(and (= |~#d2~0.offset| 0) (= |~#d1~0.base| 4) (= 5 |~#d2~0.base|) (= |~#d1~0.offset| 0) (= |#NULL.offset| 0) (<= 0 |#StackHeapBarrier|) (= |#NULL.base| 0))' at error location [2023-03-31 22:49:30,649 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2023-03-31 22:49:30,649 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-03-31 22:49:30,650 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 11, 10] total 27 [2023-03-31 22:49:30,650 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1116663548] [2023-03-31 22:49:30,650 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-03-31 22:49:30,650 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2023-03-31 22:49:30,650 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-03-31 22:49:30,651 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2023-03-31 22:49:30,652 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=139, Invalid=1334, Unknown=9, NotChecked=0, Total=1482 [2023-03-31 22:49:30,652 INFO L87 Difference]: Start difference. First operand 33 states and 35 transitions. Second operand has 27 states, 23 states have (on average 1.8695652173913044) internal successors, (43), 26 states have internal predecessors, (43), 4 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) [2023-03-31 22:49:32,695 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-03-31 22:49:33,488 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-03-31 22:49:33,488 INFO L93 Difference]: Finished difference Result 40 states and 43 transitions. [2023-03-31 22:49:33,489 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2023-03-31 22:49:33,489 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 23 states have (on average 1.8695652173913044) internal successors, (43), 26 states have internal predecessors, (43), 4 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) Word has length 36 [2023-03-31 22:49:33,489 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-03-31 22:49:33,489 INFO L225 Difference]: With dead ends: 40 [2023-03-31 22:49:33,489 INFO L226 Difference]: Without dead ends: 0 [2023-03-31 22:49:33,491 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 131 GetRequests, 80 SyntacticMatches, 0 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 640 ImplicationChecksByTransitivity, 3.7s TimeCoverageRelationStatistics Valid=387, Invalid=2360, Unknown=9, NotChecked=0, Total=2756 [2023-03-31 22:49:33,491 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 51 mSDsluCounter, 113 mSDsCounter, 0 mSdLazyCounter, 182 mSolverCounterSat, 13 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 51 SdHoareTripleChecker+Valid, 127 SdHoareTripleChecker+Invalid, 196 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 182 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2023-03-31 22:49:33,492 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [51 Valid, 127 Invalid, 196 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 182 Invalid, 1 Unknown, 0 Unchecked, 2.2s Time] [2023-03-31 22:49:33,492 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-03-31 22:49:33,492 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-03-31 22:49:33,492 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-03-31 22:49:33,493 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-03-31 22:49:33,493 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 36 [2023-03-31 22:49:33,493 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-03-31 22:49:33,493 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-03-31 22:49:33,493 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 23 states have (on average 1.8695652173913044) internal successors, (43), 26 states have internal predecessors, (43), 4 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) [2023-03-31 22:49:33,493 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-03-31 22:49:33,493 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-03-31 22:49:33,495 INFO L805 garLoopResultBuilder]: Registering result SAFE for location mainErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-03-31 22:49:33,503 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-03-31 22:49:33,696 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable3 [2023-03-31 22:49:33,698 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-03-31 22:49:33,874 INFO L899 garLoopResultBuilder]: For program point reach_errorEXIT(line 3) no Hoare annotation was computed. [2023-03-31 22:49:33,874 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line 3) no Hoare annotation was computed. [2023-03-31 22:49:33,874 INFO L899 garLoopResultBuilder]: For program point initEXIT(lines 13 20) no Hoare annotation was computed. [2023-03-31 22:49:33,875 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 13 20) the Hoare annotation is: (or (exists ((v_main_~pd2~0.base_BEFORE_CALL_4 Int) (v_main_~pd2~0.offset_BEFORE_CALL_4 Int)) (and (< 0 (select (select |#memory_int| v_main_~pd2~0.base_BEFORE_CALL_4) v_main_~pd2~0.offset_BEFORE_CALL_4)) (not (= v_main_~pd2~0.offset_BEFORE_CALL_4 0)))) (and (forall ((v_main_~pd2~0.base_BEFORE_CALL_4 Int) (v_main_~pd2~0.offset_BEFORE_CALL_4 Int)) (or (= v_main_~pd2~0.offset_BEFORE_CALL_4 0) (<= (select (select |old(#memory_int)| v_main_~pd2~0.base_BEFORE_CALL_4) v_main_~pd2~0.offset_BEFORE_CALL_4) 0))) (forall ((v_main_~pd2~0.base_BEFORE_CALL_4 Int) (v_main_~pd2~0.offset_BEFORE_CALL_4 Int)) (or (<= (select (select |old(#memory_int)| v_main_~pd2~0.base_BEFORE_CALL_4) v_main_~pd2~0.offset_BEFORE_CALL_4) 0) (= v_main_~pd2~0.base_BEFORE_CALL_4 0)))) (exists ((v_main_~pd2~0.base_BEFORE_CALL_4 Int) (v_main_~pd2~0.offset_BEFORE_CALL_4 Int)) (and (not (= v_main_~pd2~0.base_BEFORE_CALL_4 0)) (< 0 (select (select |#memory_int| v_main_~pd2~0.base_BEFORE_CALL_4) v_main_~pd2~0.offset_BEFORE_CALL_4))))) [2023-03-31 22:49:33,875 INFO L899 garLoopResultBuilder]: For program point L35-2(line 35) no Hoare annotation was computed. [2023-03-31 22:49:33,875 INFO L899 garLoopResultBuilder]: For program point L37-4(lines 37 46) no Hoare annotation was computed. [2023-03-31 22:49:33,875 INFO L902 garLoopResultBuilder]: At program point L35-3(line 35) the Hoare annotation is: true [2023-03-31 22:49:33,875 INFO L899 garLoopResultBuilder]: For program point L35-4(line 35) no Hoare annotation was computed. [2023-03-31 22:49:33,875 INFO L899 garLoopResultBuilder]: For program point mainEXIT(lines 32 52) no Hoare annotation was computed. [2023-03-31 22:49:33,876 INFO L899 garLoopResultBuilder]: For program point mainFINAL(lines 32 52) no Hoare annotation was computed. [2023-03-31 22:49:33,876 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 32 52) the Hoare annotation is: (or (exists ((v_main_~pd2~0.base_BEFORE_CALL_4 Int) (v_main_~pd2~0.offset_BEFORE_CALL_4 Int)) (and (< 0 (select (select |#memory_int| v_main_~pd2~0.base_BEFORE_CALL_4) v_main_~pd2~0.offset_BEFORE_CALL_4)) (not (= v_main_~pd2~0.offset_BEFORE_CALL_4 0)))) (and (forall ((v_main_~pd2~0.base_BEFORE_CALL_4 Int) (v_main_~pd2~0.offset_BEFORE_CALL_4 Int)) (or (= v_main_~pd2~0.offset_BEFORE_CALL_4 0) (<= (select (select |old(#memory_int)| v_main_~pd2~0.base_BEFORE_CALL_4) v_main_~pd2~0.offset_BEFORE_CALL_4) 0))) (forall ((v_main_~pd2~0.base_BEFORE_CALL_4 Int) (v_main_~pd2~0.offset_BEFORE_CALL_4 Int)) (or (<= (select (select |old(#memory_int)| v_main_~pd2~0.base_BEFORE_CALL_4) v_main_~pd2~0.offset_BEFORE_CALL_4) 0) (= v_main_~pd2~0.base_BEFORE_CALL_4 0)))) (exists ((v_main_~pd2~0.base_BEFORE_CALL_4 Int) (v_main_~pd2~0.offset_BEFORE_CALL_4 Int)) (and (not (= v_main_~pd2~0.base_BEFORE_CALL_4 0)) (< 0 (select (select |#memory_int| v_main_~pd2~0.base_BEFORE_CALL_4) v_main_~pd2~0.offset_BEFORE_CALL_4))))) [2023-03-31 22:49:33,876 INFO L899 garLoopResultBuilder]: For program point L40-1(lines 40 42) no Hoare annotation was computed. [2023-03-31 22:49:33,876 INFO L895 garLoopResultBuilder]: At program point L40-3(lines 40 42) the Hoare annotation is: (or (and (forall ((v_main_~pd2~0.base_BEFORE_CALL_4 Int) (v_main_~pd2~0.offset_BEFORE_CALL_4 Int)) (or (= v_main_~pd2~0.offset_BEFORE_CALL_4 0) (<= (select (select |old(#memory_int)| v_main_~pd2~0.base_BEFORE_CALL_4) v_main_~pd2~0.offset_BEFORE_CALL_4) 0))) (forall ((v_main_~pd2~0.base_BEFORE_CALL_4 Int) (v_main_~pd2~0.offset_BEFORE_CALL_4 Int)) (or (<= (select (select |old(#memory_int)| v_main_~pd2~0.base_BEFORE_CALL_4) v_main_~pd2~0.offset_BEFORE_CALL_4) 0) (= v_main_~pd2~0.base_BEFORE_CALL_4 0)))) (and (< 0 (select (select |#memory_int| main_~pd2~0.base) main_~pd2~0.offset)) (or (not |main_#t~short15|) (and (= main_~pd2~0.base main_~pd1~0.base) (= main_~pd2~0.offset main_~pd1~0.offset))) (= main_~pd2~0.base main_~pa~0.base) (or (not (= main_~pd2~0.base 0)) (not (= main_~pd2~0.offset 0))) (= main_~pd2~0.offset main_~pa~0.offset) (<= main_~i~0 (select (select |#memory_int| main_~pa~0.base) main_~pa~0.offset)))) [2023-03-31 22:49:33,877 INFO L895 garLoopResultBuilder]: At program point L40-4(lines 40 42) the Hoare annotation is: (or (and (forall ((v_main_~pd2~0.base_BEFORE_CALL_4 Int) (v_main_~pd2~0.offset_BEFORE_CALL_4 Int)) (or (= v_main_~pd2~0.offset_BEFORE_CALL_4 0) (<= (select (select |old(#memory_int)| v_main_~pd2~0.base_BEFORE_CALL_4) v_main_~pd2~0.offset_BEFORE_CALL_4) 0))) (forall ((v_main_~pd2~0.base_BEFORE_CALL_4 Int) (v_main_~pd2~0.offset_BEFORE_CALL_4 Int)) (or (<= (select (select |old(#memory_int)| v_main_~pd2~0.base_BEFORE_CALL_4) v_main_~pd2~0.offset_BEFORE_CALL_4) 0) (= v_main_~pd2~0.base_BEFORE_CALL_4 0)))) (let ((.cse0 (select (select |#memory_int| main_~pd2~0.base) main_~pd2~0.offset))) (and (< 0 .cse0) (or (not |main_#t~short15|) (and (= main_~pd2~0.base main_~pd1~0.base) (= main_~pd2~0.offset main_~pd1~0.offset))) (= main_~pd2~0.base main_~pa~0.base) (or (not (= main_~pd2~0.base 0)) (not (= main_~pd2~0.offset 0))) (= main_~pd2~0.offset main_~pa~0.offset) (<= .cse0 main_~i~0) (<= main_~i~0 (select (select |#memory_int| main_~pa~0.base) main_~pa~0.offset))))) [2023-03-31 22:49:33,877 INFO L902 garLoopResultBuilder]: At program point L34(line 34) the Hoare annotation is: true [2023-03-31 22:49:33,877 INFO L899 garLoopResultBuilder]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 50) no Hoare annotation was computed. [2023-03-31 22:49:33,877 INFO L895 garLoopResultBuilder]: At program point ERROR(lines 33 52) the Hoare annotation is: (and (forall ((v_main_~pd2~0.base_BEFORE_CALL_4 Int) (v_main_~pd2~0.offset_BEFORE_CALL_4 Int)) (or (= v_main_~pd2~0.offset_BEFORE_CALL_4 0) (<= (select (select |old(#memory_int)| v_main_~pd2~0.base_BEFORE_CALL_4) v_main_~pd2~0.offset_BEFORE_CALL_4) 0))) (forall ((v_main_~pd2~0.base_BEFORE_CALL_4 Int) (v_main_~pd2~0.offset_BEFORE_CALL_4 Int)) (or (<= (select (select |old(#memory_int)| v_main_~pd2~0.base_BEFORE_CALL_4) v_main_~pd2~0.offset_BEFORE_CALL_4) 0) (= v_main_~pd2~0.base_BEFORE_CALL_4 0)))) [2023-03-31 22:49:33,877 INFO L899 garLoopResultBuilder]: For program point L43(line 43) no Hoare annotation was computed. [2023-03-31 22:49:33,877 INFO L899 garLoopResultBuilder]: For program point L43-1(lines 43 45) no Hoare annotation was computed. [2023-03-31 22:49:33,877 INFO L899 garLoopResultBuilder]: For program point L35(line 35) no Hoare annotation was computed. [2023-03-31 22:49:33,878 INFO L899 garLoopResultBuilder]: For program point L37-2(lines 37 46) no Hoare annotation was computed. [2023-03-31 22:49:33,878 INFO L902 garLoopResultBuilder]: At program point L35-1(line 35) the Hoare annotation is: true [2023-03-31 22:49:33,878 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 27 30) the Hoare annotation is: true [2023-03-31 22:49:33,878 INFO L899 garLoopResultBuilder]: For program point checkEXIT(lines 27 30) no Hoare annotation was computed. [2023-03-31 22:49:33,878 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(line -1) the Hoare annotation is: true [2023-03-31 22:49:33,878 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2023-03-31 22:49:33,878 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 22 25) the Hoare annotation is: true [2023-03-31 22:49:33,878 INFO L899 garLoopResultBuilder]: For program point get_dummyEXIT(lines 22 25) no Hoare annotation was computed. [2023-03-31 22:49:33,878 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2023-03-31 22:49:33,878 INFO L895 garLoopResultBuilder]: At program point L-1(line -1) the Hoare annotation is: (or (exists ((v_main_~pd2~0.base_BEFORE_CALL_4 Int) (v_main_~pd2~0.offset_BEFORE_CALL_4 Int)) (and (< 0 (select (select |#memory_int| v_main_~pd2~0.base_BEFORE_CALL_4) v_main_~pd2~0.offset_BEFORE_CALL_4)) (not (= v_main_~pd2~0.offset_BEFORE_CALL_4 0)))) (exists ((v_main_~pd2~0.base_BEFORE_CALL_4 Int) (v_main_~pd2~0.offset_BEFORE_CALL_4 Int)) (and (not (= v_main_~pd2~0.base_BEFORE_CALL_4 0)) (< 0 (select (select |#memory_int| v_main_~pd2~0.base_BEFORE_CALL_4) v_main_~pd2~0.offset_BEFORE_CALL_4))))) [2023-03-31 22:49:33,879 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2023-03-31 22:49:33,879 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(line -1) the Hoare annotation is: true [2023-03-31 22:49:33,882 INFO L445 BasicCegarLoop]: Path program histogram: [2, 1, 1] [2023-03-31 22:49:33,883 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-03-31 22:49:33,889 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~pd2~0.offset_BEFORE_CALL_4,QUANTIFIED] [2023-03-31 22:49:33,890 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~pd2~0.base_BEFORE_CALL_4,QUANTIFIED] [2023-03-31 22:49:33,890 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~pd2~0.offset_BEFORE_CALL_4,QUANTIFIED] [2023-03-31 22:49:33,890 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~pd2~0.base_BEFORE_CALL_4,QUANTIFIED] [2023-03-31 22:49:33,890 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~pd2~0.offset_BEFORE_CALL_4,QUANTIFIED] [2023-03-31 22:49:33,890 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~pd2~0.base_BEFORE_CALL_4,QUANTIFIED] [2023-03-31 22:49:33,896 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~pd2~0.offset_BEFORE_CALL_4,QUANTIFIED] [2023-03-31 22:49:33,896 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~pd2~0.base_BEFORE_CALL_4,QUANTIFIED] [2023-03-31 22:49:33,896 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~pd2~0.offset_BEFORE_CALL_4,QUANTIFIED] [2023-03-31 22:49:33,897 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~pd2~0.base_BEFORE_CALL_4,QUANTIFIED] [2023-03-31 22:49:33,897 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~pd2~0.offset_BEFORE_CALL_4,QUANTIFIED] [2023-03-31 22:49:33,897 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~pd2~0.base_BEFORE_CALL_4,QUANTIFIED] [2023-03-31 22:49:33,898 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~pd2~0.offset_BEFORE_CALL_4,QUANTIFIED] [2023-03-31 22:49:33,898 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~pd2~0.base_BEFORE_CALL_4,QUANTIFIED] [2023-03-31 22:49:33,898 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~pd2~0.offset_BEFORE_CALL_4,QUANTIFIED] [2023-03-31 22:49:33,898 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~pd2~0.base_BEFORE_CALL_4,QUANTIFIED] [2023-03-31 22:49:33,898 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~pd2~0.offset_BEFORE_CALL_4,QUANTIFIED] [2023-03-31 22:49:33,898 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~pd2~0.base_BEFORE_CALL_4,QUANTIFIED] [2023-03-31 22:49:33,899 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~pd2~0.offset_BEFORE_CALL_4,QUANTIFIED] [2023-03-31 22:49:33,899 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~pd2~0.base_BEFORE_CALL_4,QUANTIFIED] [2023-03-31 22:49:33,899 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~pd2~0.offset_BEFORE_CALL_4,QUANTIFIED] [2023-03-31 22:49:33,899 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~pd2~0.base_BEFORE_CALL_4,QUANTIFIED] [2023-03-31 22:49:33,899 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~pd2~0.offset_BEFORE_CALL_4,QUANTIFIED] [2023-03-31 22:49:33,899 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~pd2~0.base_BEFORE_CALL_4,QUANTIFIED] [2023-03-31 22:49:33,900 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 31.03 10:49:33 BoogieIcfgContainer [2023-03-31 22:49:33,900 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-03-31 22:49:33,901 INFO L158 Benchmark]: Toolchain (without parser) took 11997.25ms. Allocated memory was 225.4MB in the beginning and 343.9MB in the end (delta: 118.5MB). Free memory was 173.4MB in the beginning and 282.5MB in the end (delta: -109.1MB). Peak memory consumption was 10.4MB. Max. memory is 8.0GB. [2023-03-31 22:49:33,901 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 187.7MB. Free memory was 132.0MB in the beginning and 131.9MB in the end (delta: 146.9kB). There was no memory consumed. Max. memory is 8.0GB. [2023-03-31 22:49:33,901 INFO L158 Benchmark]: CACSL2BoogieTranslator took 217.55ms. Allocated memory is still 225.4MB. Free memory was 173.4MB in the beginning and 162.8MB in the end (delta: 10.6MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. [2023-03-31 22:49:33,901 INFO L158 Benchmark]: Boogie Preprocessor took 28.33ms. Allocated memory is still 225.4MB. Free memory was 162.8MB in the beginning and 161.3MB in the end (delta: 1.4MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2023-03-31 22:49:33,902 INFO L158 Benchmark]: RCFGBuilder took 404.84ms. Allocated memory is still 225.4MB. Free memory was 161.3MB in the beginning and 146.1MB in the end (delta: 15.2MB). Peak memory consumption was 15.7MB. Max. memory is 8.0GB. [2023-03-31 22:49:33,902 INFO L158 Benchmark]: TraceAbstraction took 11338.34ms. Allocated memory was 225.4MB in the beginning and 343.9MB in the end (delta: 118.5MB). Free memory was 145.1MB in the beginning and 282.5MB in the end (delta: -137.4MB). There was no memory consumed. Max. memory is 8.0GB. [2023-03-31 22:49:33,903 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14ms. Allocated memory is still 187.7MB. Free memory was 132.0MB in the beginning and 131.9MB in the end (delta: 146.9kB). There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 217.55ms. Allocated memory is still 225.4MB. Free memory was 173.4MB in the beginning and 162.8MB in the end (delta: 10.6MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. * Boogie Preprocessor took 28.33ms. Allocated memory is still 225.4MB. Free memory was 162.8MB in the beginning and 161.3MB in the end (delta: 1.4MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 404.84ms. Allocated memory is still 225.4MB. Free memory was 161.3MB in the beginning and 146.1MB in the end (delta: 15.2MB). Peak memory consumption was 15.7MB. Max. memory is 8.0GB. * TraceAbstraction took 11338.34ms. Allocated memory was 225.4MB in the beginning and 343.9MB in the end (delta: 118.5MB). Free memory was 145.1MB in the beginning and 282.5MB in the end (delta: -137.4MB). There was no memory consumed. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~pd2~0.offset_BEFORE_CALL_4,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~pd2~0.base_BEFORE_CALL_4,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~pd2~0.offset_BEFORE_CALL_4,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~pd2~0.base_BEFORE_CALL_4,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~pd2~0.offset_BEFORE_CALL_4,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~pd2~0.base_BEFORE_CALL_4,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~pd2~0.offset_BEFORE_CALL_4,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~pd2~0.base_BEFORE_CALL_4,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~pd2~0.offset_BEFORE_CALL_4,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~pd2~0.base_BEFORE_CALL_4,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~pd2~0.offset_BEFORE_CALL_4,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~pd2~0.base_BEFORE_CALL_4,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~pd2~0.offset_BEFORE_CALL_4,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~pd2~0.base_BEFORE_CALL_4,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~pd2~0.offset_BEFORE_CALL_4,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~pd2~0.base_BEFORE_CALL_4,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~pd2~0.offset_BEFORE_CALL_4,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~pd2~0.base_BEFORE_CALL_4,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~pd2~0.offset_BEFORE_CALL_4,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~pd2~0.base_BEFORE_CALL_4,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~pd2~0.offset_BEFORE_CALL_4,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~pd2~0.base_BEFORE_CALL_4,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~pd2~0.offset_BEFORE_CALL_4,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~pd2~0.base_BEFORE_CALL_4,QUANTIFIED] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 50]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 7 procedures, 32 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 11.3s, OverallIterations: 4, TraceHistogramMax: 5, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 3.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.2s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1 mSolverCounterUnknown, 94 SdHoareTripleChecker+Valid, 2.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 92 mSDsluCounter, 334 SdHoareTripleChecker+Invalid, 2.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 254 mSDsCounter, 18 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 299 IncrementalHoareTripleChecker+Invalid, 318 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 18 mSolverCounterUnsat, 80 mSDtfsCounter, 299 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 244 GetRequests, 155 SyntacticMatches, 0 SemanticMatches, 89 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 963 ImplicationChecksByTransitivity, 4.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=33occurred in iteration=3, InterpolantAutomatonStates: 38, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 13 LocationsWithAnnotation, 19 PreInvPairs, 25 NumberOfFragments, 302 HoareAnnotationTreeSize, 19 FomulaSimplifications, 16 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 13 FomulaSimplificationsInter, 302 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 2.5s InterpolantComputationTime, 187 NumberOfCodeBlocks, 183 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 245 ConstructedInterpolants, 2 QuantifiedInterpolants, 1299 SizeOfPredicates, 27 NumberOfNonLiveVariables, 391 ConjunctsInSsa, 57 ConjunctsInUnsatCore, 8 InterpolantComputations, 2 PerfectInterpolantSequences, 73/114 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 40]: Loop Invariant [2023-03-31 22:49:33,908 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~pd2~0.offset_BEFORE_CALL_4,QUANTIFIED] [2023-03-31 22:49:33,909 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~pd2~0.base_BEFORE_CALL_4,QUANTIFIED] [2023-03-31 22:49:33,909 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~pd2~0.offset_BEFORE_CALL_4,QUANTIFIED] [2023-03-31 22:49:33,909 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~pd2~0.base_BEFORE_CALL_4,QUANTIFIED] [2023-03-31 22:49:33,909 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~pd2~0.offset_BEFORE_CALL_4,QUANTIFIED] [2023-03-31 22:49:33,909 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~pd2~0.base_BEFORE_CALL_4,QUANTIFIED] [2023-03-31 22:49:33,910 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~pd2~0.offset_BEFORE_CALL_4,QUANTIFIED] [2023-03-31 22:49:33,910 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~pd2~0.base_BEFORE_CALL_4,QUANTIFIED] [2023-03-31 22:49:33,910 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~pd2~0.offset_BEFORE_CALL_4,QUANTIFIED] [2023-03-31 22:49:33,910 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~pd2~0.base_BEFORE_CALL_4,QUANTIFIED] [2023-03-31 22:49:33,910 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~pd2~0.offset_BEFORE_CALL_4,QUANTIFIED] [2023-03-31 22:49:33,910 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~pd2~0.base_BEFORE_CALL_4,QUANTIFIED] Derived loop invariant: ((forall v_main_~pd2~0.base_BEFORE_CALL_4 : int, v_main_~pd2~0.offset_BEFORE_CALL_4 : int :: v_main_~pd2~0.offset_BEFORE_CALL_4 == 0 || \old(unknown-#memory_int-unknown)[v_main_~pd2~0.base_BEFORE_CALL_4][v_main_~pd2~0.offset_BEFORE_CALL_4] <= 0) && (forall v_main_~pd2~0.base_BEFORE_CALL_4 : int, v_main_~pd2~0.offset_BEFORE_CALL_4 : int :: \old(unknown-#memory_int-unknown)[v_main_~pd2~0.base_BEFORE_CALL_4][v_main_~pd2~0.offset_BEFORE_CALL_4] <= 0 || v_main_~pd2~0.base_BEFORE_CALL_4 == 0)) || (((((0 < unknown-#memory_int-unknown[pd2][pd2] && (!aux-pd1 != 0 && pd1 == pd2 && (*pd2).a > 0-aux || (pd2 == pd1 && pd2 == pd1))) && pd2 == pa) && (!(pd2 == 0) || !(pd2 == 0))) && pd2 == pa) && i <= unknown-#memory_int-unknown[pa][pa]) - InvariantResult [Line: 33]: Loop Invariant [2023-03-31 22:49:33,911 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~pd2~0.offset_BEFORE_CALL_4,QUANTIFIED] [2023-03-31 22:49:33,911 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~pd2~0.base_BEFORE_CALL_4,QUANTIFIED] [2023-03-31 22:49:33,911 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~pd2~0.offset_BEFORE_CALL_4,QUANTIFIED] [2023-03-31 22:49:33,911 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~pd2~0.base_BEFORE_CALL_4,QUANTIFIED] [2023-03-31 22:49:33,911 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~pd2~0.offset_BEFORE_CALL_4,QUANTIFIED] [2023-03-31 22:49:33,911 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~pd2~0.base_BEFORE_CALL_4,QUANTIFIED] [2023-03-31 22:49:33,912 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~pd2~0.offset_BEFORE_CALL_4,QUANTIFIED] [2023-03-31 22:49:33,912 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~pd2~0.base_BEFORE_CALL_4,QUANTIFIED] [2023-03-31 22:49:33,912 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~pd2~0.offset_BEFORE_CALL_4,QUANTIFIED] [2023-03-31 22:49:33,912 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~pd2~0.base_BEFORE_CALL_4,QUANTIFIED] [2023-03-31 22:49:33,912 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~pd2~0.offset_BEFORE_CALL_4,QUANTIFIED] [2023-03-31 22:49:33,912 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~pd2~0.base_BEFORE_CALL_4,QUANTIFIED] Derived loop invariant: (forall v_main_~pd2~0.base_BEFORE_CALL_4 : int, v_main_~pd2~0.offset_BEFORE_CALL_4 : int :: v_main_~pd2~0.offset_BEFORE_CALL_4 == 0 || \old(unknown-#memory_int-unknown)[v_main_~pd2~0.base_BEFORE_CALL_4][v_main_~pd2~0.offset_BEFORE_CALL_4] <= 0) && (forall v_main_~pd2~0.base_BEFORE_CALL_4 : int, v_main_~pd2~0.offset_BEFORE_CALL_4 : int :: \old(unknown-#memory_int-unknown)[v_main_~pd2~0.base_BEFORE_CALL_4][v_main_~pd2~0.offset_BEFORE_CALL_4] <= 0 || v_main_~pd2~0.base_BEFORE_CALL_4 == 0) RESULT: Ultimate proved your program to be correct! [2023-03-31 22:49:33,931 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request...