/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.use.separate.solver.for.trace.checks true -s ../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf -i ../../../trunk/examples/svcomp/ldv-regression/nested_structure-2.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-36cd7be [2021-02-23 23:04:29,126 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-02-23 23:04:29,130 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-02-23 23:04:29,176 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-02-23 23:04:29,213 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-02-23 23:04:29,215 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-02-23 23:04:29,217 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-02-23 23:04:29,219 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-02-23 23:04:29,223 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-02-23 23:04:29,224 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-02-23 23:04:29,230 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-02-23 23:04:29,233 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-02-23 23:04:29,237 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-02-23 23:04:29,238 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-02-23 23:04:29,240 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-02-23 23:04:29,242 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-02-23 23:04:29,252 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-02-23 23:04:29,264 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-02-23 23:04:29,265 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-02-23 23:04:29,266 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-02-23 23:04:29,267 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2021-02-23 23:04:29,294 INFO L113 SettingsManager]: Loading preferences was successful [2021-02-23 23:04:29,295 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-02-23 23:04:29,296 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-02-23 23:04:29,297 INFO L138 SettingsManager]: * sizeof long=4 [2021-02-23 23:04:29,297 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-02-23 23:04:29,298 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-02-23 23:04:29,298 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-02-23 23:04:29,298 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-02-23 23:04:29,299 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-02-23 23:04:29,299 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-02-23 23:04:29,299 INFO L138 SettingsManager]: * sizeof long double=12 [2021-02-23 23:04:29,299 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-02-23 23:04:29,299 INFO L138 SettingsManager]: * Use constant arrays=true [2021-02-23 23:04:29,299 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-02-23 23:04:29,300 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-02-23 23:04:29,301 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2021-02-23 23:04:29,301 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-02-23 23:04:29,302 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-02-23 23:04:29,302 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-02-23 23:04:29,302 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-02-23 23:04:29,302 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2021-02-23 23:04:29,302 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-02-23 23:04:29,303 INFO L138 SettingsManager]: * Use separate solver for trace checks=false WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use separate solver for trace checks -> true [2021-02-23 23:04:29,653 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-02-23 23:04:29,677 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-02-23 23:04:29,680 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-02-23 23:04:29,681 INFO L271 PluginConnector]: Initializing CDTParser... [2021-02-23 23:04:29,682 INFO L275 PluginConnector]: CDTParser initialized [2021-02-23 23:04:29,683 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-regression/nested_structure-2.i [2021-02-23 23:04:29,764 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fd848919a/51d2d5b5c4e2469db4b6e3af55dd8b0c/FLAGf0b1ae17f [2021-02-23 23:04:30,361 INFO L306 CDTParser]: Found 1 translation units. [2021-02-23 23:04:30,362 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-regression/nested_structure-2.i [2021-02-23 23:04:30,369 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fd848919a/51d2d5b5c4e2469db4b6e3af55dd8b0c/FLAGf0b1ae17f [2021-02-23 23:04:30,749 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fd848919a/51d2d5b5c4e2469db4b6e3af55dd8b0c [2021-02-23 23:04:30,751 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-02-23 23:04:30,762 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-02-23 23:04:30,765 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-02-23 23:04:30,765 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-02-23 23:04:30,769 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-02-23 23:04:30,770 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.02 11:04:30" (1/1) ... [2021-02-23 23:04:30,772 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@70994b22 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 11:04:30, skipping insertion in model container [2021-02-23 23:04:30,772 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.02 11:04:30" (1/1) ... [2021-02-23 23:04:30,780 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-02-23 23:04:30,802 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-02-23 23:04:30,948 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/ldv-regression/nested_structure-2.i[818,831] [2021-02-23 23:04:30,961 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-23 23:04:30,971 INFO L203 MainTranslator]: Completed pre-run [2021-02-23 23:04:30,985 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/ldv-regression/nested_structure-2.i[818,831] [2021-02-23 23:04:30,991 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-23 23:04:31,008 INFO L208 MainTranslator]: Completed translation [2021-02-23 23:04:31,009 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 11:04:31 WrapperNode [2021-02-23 23:04:31,009 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-02-23 23:04:31,010 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-02-23 23:04:31,010 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-02-23 23:04:31,010 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-02-23 23:04:31,023 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 11:04:31" (1/1) ... [2021-02-23 23:04:31,024 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 11:04:31" (1/1) ... [2021-02-23 23:04:31,032 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 11:04:31" (1/1) ... [2021-02-23 23:04:31,033 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 11:04:31" (1/1) ... [2021-02-23 23:04:31,041 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 11:04:31" (1/1) ... [2021-02-23 23:04:31,043 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 11:04:31" (1/1) ... [2021-02-23 23:04:31,045 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 11:04:31" (1/1) ... [2021-02-23 23:04:31,047 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-02-23 23:04:31,048 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-02-23 23:04:31,049 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-02-23 23:04:31,049 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-02-23 23:04:31,050 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 11:04:31" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-02-23 23:04:31,151 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-02-23 23:04:31,151 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-02-23 23:04:31,152 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2021-02-23 23:04:31,152 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2021-02-23 23:04:31,152 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-02-23 23:04:31,152 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2021-02-23 23:04:31,153 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2021-02-23 23:04:31,153 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_perror_fail [2021-02-23 23:04:31,153 INFO L130 BoogieDeclarations]: Found specification of procedure __assert [2021-02-23 23:04:31,153 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2021-02-23 23:04:31,153 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-02-23 23:04:31,154 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2021-02-23 23:04:31,154 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-02-23 23:04:31,154 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-02-23 23:04:31,154 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-02-23 23:04:31,155 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-02-23 23:04:31,155 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-02-23 23:04:31,155 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-02-23 23:04:31,155 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-02-23 23:04:31,155 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-02-23 23:04:31,156 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-02-23 23:04:31,156 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-02-23 23:04:31,690 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-02-23 23:04:31,690 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-02-23 23:04:31,692 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.02 11:04:31 BoogieIcfgContainer [2021-02-23 23:04:31,692 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-02-23 23:04:31,694 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-02-23 23:04:31,694 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-02-23 23:04:31,697 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-02-23 23:04:31,699 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.02 11:04:30" (1/3) ... [2021-02-23 23:04:31,700 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@682a3538 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.02 11:04:31, skipping insertion in model container [2021-02-23 23:04:31,700 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 11:04:31" (2/3) ... [2021-02-23 23:04:31,701 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@682a3538 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.02 11:04:31, skipping insertion in model container [2021-02-23 23:04:31,701 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.02 11:04:31" (3/3) ... [2021-02-23 23:04:31,702 INFO L111 eAbstractionObserver]: Analyzing ICFG nested_structure-2.i [2021-02-23 23:04:31,710 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2021-02-23 23:04:31,716 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-02-23 23:04:31,739 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-02-23 23:04:31,765 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-02-23 23:04:31,766 INFO L377 AbstractCegarLoop]: Hoare is true [2021-02-23 23:04:31,766 INFO L378 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2021-02-23 23:04:31,766 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-02-23 23:04:31,766 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-02-23 23:04:31,766 INFO L381 AbstractCegarLoop]: Difference is false [2021-02-23 23:04:31,767 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-02-23 23:04:31,767 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-02-23 23:04:31,782 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states. [2021-02-23 23:04:31,792 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-02-23 23:04:31,792 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 23:04:31,793 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-23 23:04:31,794 INFO L428 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 23:04:31,800 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 23:04:31,800 INFO L82 PathProgramCache]: Analyzing trace with hash -1621777824, now seen corresponding path program 1 times [2021-02-23 23:04:31,810 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-23 23:04:31,811 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [588668935] [2021-02-23 23:04:31,811 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 23:04:31,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:04:32,209 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:04:32,211 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:04:32,220 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:04:32,221 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-02-23 23:04:32,250 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:04:32,252 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-02-23 23:04:32,287 WARN L141 QuantifierPusher]: treesize reduction 5, result has 78.3 percent of original size [2021-02-23 23:04:32,290 WARN L147 QuantifierPusher]: treesize reduction 5, result has 78.3 percent of original size 18 [2021-02-23 23:04:32,330 WARN L141 QuantifierPusher]: treesize reduction 5, result has 84.4 percent of original size [2021-02-23 23:04:32,332 WARN L147 QuantifierPusher]: treesize reduction 5, result has 84.4 percent of original size 27 [2021-02-23 23:04:32,375 WARN L141 QuantifierPusher]: treesize reduction 5, result has 86.5 percent of original size [2021-02-23 23:04:32,377 WARN L147 QuantifierPusher]: treesize reduction 5, result has 86.5 percent of original size 32 [2021-02-23 23:04:32,434 WARN L141 QuantifierPusher]: treesize reduction 5, result has 82.8 percent of original size [2021-02-23 23:04:32,436 WARN L147 QuantifierPusher]: treesize reduction 5, result has 82.8 percent of original size 24 [2021-02-23 23:04:32,483 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:04:32,484 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-02-23 23:04:32,534 WARN L141 QuantifierPusher]: treesize reduction 5, result has 92.9 percent of original size [2021-02-23 23:04:32,536 WARN L147 QuantifierPusher]: treesize reduction 5, result has 92.9 percent of original size 65 [2021-02-23 23:04:32,615 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:04:32,617 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-02-23 23:04:32,658 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:04:32,659 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-02-23 23:04:32,683 WARN L141 QuantifierPusher]: treesize reduction 5, result has 82.1 percent of original size [2021-02-23 23:04:32,684 WARN L147 QuantifierPusher]: treesize reduction 5, result has 82.1 percent of original size 23 [2021-02-23 23:04:32,707 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:04:32,708 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 23:04:32,725 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:04:32,739 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 23:04:32,758 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:04:32,759 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-23 23:04:32,779 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:04:32,780 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-23 23:04:32,800 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:04:32,800 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:04:32,839 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 23:04:32,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:04:32,851 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:04:32,852 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:04:32,864 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-23 23:04:32,866 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [588668935] [2021-02-23 23:04:32,874 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-23 23:04:32,874 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-02-23 23:04:32,875 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [407064849] [2021-02-23 23:04:32,880 INFO L460 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-02-23 23:04:32,880 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-23 23:04:32,901 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-02-23 23:04:32,904 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-02-23 23:04:32,906 INFO L87 Difference]: Start difference. First operand 49 states. Second operand 18 states. [2021-02-23 23:04:33,878 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 23:04:33,879 INFO L93 Difference]: Finished difference Result 65 states and 64 transitions. [2021-02-23 23:04:33,879 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-02-23 23:04:33,880 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 31 [2021-02-23 23:04:33,881 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 23:04:33,887 INFO L225 Difference]: With dead ends: 65 [2021-02-23 23:04:33,887 INFO L226 Difference]: Without dead ends: 0 [2021-02-23 23:04:33,891 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 177 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=193, Invalid=997, Unknown=0, NotChecked=0, Total=1190 [2021-02-23 23:04:33,908 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-02-23 23:04:33,913 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-02-23 23:04:33,915 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2021-02-23 23:04:33,915 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-02-23 23:04:33,916 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 31 [2021-02-23 23:04:33,916 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 23:04:33,917 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-02-23 23:04:33,917 INFO L481 AbstractCegarLoop]: Interpolant automaton has 18 states. [2021-02-23 23:04:33,917 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-02-23 23:04:33,917 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-02-23 23:04:33,918 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-02-23 23:04:33,920 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-02-23 23:04:34,537 INFO L189 CegarLoopUtils]: For program point reach_errorEXIT(line 12) no Hoare annotation was computed. [2021-02-23 23:04:34,538 INFO L189 CegarLoopUtils]: For program point reach_errorENTRY(line 12) no Hoare annotation was computed. [2021-02-23 23:04:34,538 INFO L189 CegarLoopUtils]: For program point L12-1(line 12) no Hoare annotation was computed. [2021-02-23 23:04:34,538 INFO L189 CegarLoopUtils]: For program point L12-2(line 12) no Hoare annotation was computed. [2021-02-23 23:04:34,538 INFO L189 CegarLoopUtils]: For program point L12-3(line 12) no Hoare annotation was computed. [2021-02-23 23:04:34,538 INFO L192 CegarLoopUtils]: At program point L-1(line -1) the Hoare annotation is: true [2021-02-23 23:04:34,539 INFO L192 CegarLoopUtils]: At program point L-1-1(line -1) the Hoare annotation is: true [2021-02-23 23:04:34,539 INFO L192 CegarLoopUtils]: At program point ULTIMATE.initFINAL(line 12) the Hoare annotation is: true [2021-02-23 23:04:34,539 INFO L192 CegarLoopUtils]: At program point L12(line 12) the Hoare annotation is: true [2021-02-23 23:04:34,539 INFO L192 CegarLoopUtils]: At program point L12-1(line 12) the Hoare annotation is: true [2021-02-23 23:04:34,539 INFO L192 CegarLoopUtils]: At program point L12-2(line 12) the Hoare annotation is: true [2021-02-23 23:04:34,539 INFO L185 CegarLoopUtils]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= |#t~string0.offset| |old(#t~string0.offset)|) (= |old(#length)| |#length|) (= |#t~string1.base| |old(#t~string1.base)|) (= |#NULL.base| |old(#NULL.base)|) (= |#t~string0.base| |old(#t~string0.base)|) (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#valid)| |#valid|) (= |#t~string1.offset| |old(#t~string1.offset)|)) [2021-02-23 23:04:34,540 INFO L192 CegarLoopUtils]: At program point L12-3(line 12) the Hoare annotation is: true [2021-02-23 23:04:34,540 INFO L192 CegarLoopUtils]: At program point ULTIMATE.initEXIT(line -1) the Hoare annotation is: true [2021-02-23 23:04:34,540 INFO L192 CegarLoopUtils]: At program point ULTIMATE.startEXIT(line -1) the Hoare annotation is: true [2021-02-23 23:04:34,540 INFO L192 CegarLoopUtils]: At program point L-1(line -1) the Hoare annotation is: true [2021-02-23 23:04:34,540 INFO L192 CegarLoopUtils]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2021-02-23 23:04:34,540 INFO L192 CegarLoopUtils]: At program point ULTIMATE.startFINAL(line -1) the Hoare annotation is: true [2021-02-23 23:04:34,541 INFO L192 CegarLoopUtils]: At program point mainEXIT(lines 38 46) the Hoare annotation is: true [2021-02-23 23:04:34,541 INFO L192 CegarLoopUtils]: At program point mainFINAL(lines 38 46) the Hoare annotation is: true [2021-02-23 23:04:34,541 INFO L185 CegarLoopUtils]: At program point L44(line 44) the Hoare annotation is: (let ((.cse2 (+ |main_~#good~0.offset| 4))) (let ((.cse1 (select (select |#memory_$Pointer$.base| |main_~#good~0.base|) .cse2))) (let ((.cse0 (select (select |#memory_$Pointer$.base| .cse1) 4))) (and (not (= .cse0 .cse1)) (= (select (select |#memory_int| .cse0) (select (select |#memory_$Pointer$.offset| .cse1) 4)) 4) (= 0 |main_~#im~0.offset|) (not (= |main_~#good~0.base| .cse0)) (= (select (select |#memory_$Pointer$.offset| |main_~#good~0.base|) .cse2) 0) (= (select |#valid| |main_~#im~0.base|) 1))))) [2021-02-23 23:04:34,541 INFO L185 CegarLoopUtils]: At program point L44-1(line 44) the Hoare annotation is: (let ((.cse2 (+ |main_~#good~0.offset| 4))) (let ((.cse1 (select (select |#memory_$Pointer$.base| |main_~#good~0.base|) .cse2))) (let ((.cse0 (select (select |#memory_$Pointer$.base| .cse1) 4))) (and (not (= .cse0 .cse1)) (= (select (select |#memory_int| .cse0) (select (select |#memory_$Pointer$.offset| .cse1) 4)) 4) (= 0 |main_~#im~0.offset|) (not (= |main_~#good~0.base| .cse0)) (= (select (select |#memory_$Pointer$.offset| |main_~#good~0.base|) .cse2) 0) (= |main_#t~mem5.offset| 0) (= 4 (let ((.cse3 (+ |main_#t~mem5.offset| 4))) (select (select |#memory_int| (select (select |#memory_$Pointer$.base| |main_#t~mem5.base|) .cse3)) (select (select |#memory_$Pointer$.offset| |main_#t~mem5.base|) .cse3)))) (= (select |#valid| |main_~#im~0.base|) 1))))) [2021-02-23 23:04:34,542 INFO L185 CegarLoopUtils]: At program point L42(line 42) the Hoare annotation is: (let ((.cse0 (select (select |#memory_$Pointer$.base| |main_~#inner~0.base|) (+ |main_~#inner~0.offset| 4)))) (and (= 0 |main_~#im~0.offset|) (or (= 3 (select (select |#memory_int| |main_~#good~0.base|) |main_~#good~0.offset|)) (not (= |main_~#good~0.base| .cse0))) (= 3 (select (select |#memory_int| |main_~#im~0.base|) |main_~#im~0.offset|)) (not (= .cse0 |main_~#inner~0.base|)) (= |main_~#inner~0.offset| 0) (= (select (select |#memory_int| .cse0) 0) 3) (= (select |#valid| |main_~#im~0.base|) 1) (not (= |main_~#im~0.base| |main_~#inner~0.base|)))) [2021-02-23 23:04:34,542 INFO L185 CegarLoopUtils]: At program point L44-2(line 44) the Hoare annotation is: (let ((.cse2 (+ |main_~#good~0.offset| 4))) (let ((.cse1 (select (select |#memory_$Pointer$.base| |main_~#good~0.base|) .cse2))) (let ((.cse0 (select (select |#memory_$Pointer$.base| .cse1) 4))) (and (not (= .cse0 .cse1)) (= (select (select |#memory_int| .cse0) (select (select |#memory_$Pointer$.offset| .cse1) 4)) 4) (= 0 |main_~#im~0.offset|) (not (= |main_~#good~0.base| .cse0)) (= (select (select |#memory_$Pointer$.offset| |main_~#good~0.base|) .cse2) 0) (= |main_#t~mem5.offset| 0) (= 4 (let ((.cse3 (+ |main_#t~mem5.offset| 4))) (select (select |#memory_int| (select (select |#memory_$Pointer$.base| |main_#t~mem5.base|) .cse3)) (select (select |#memory_$Pointer$.offset| |main_#t~mem5.base|) .cse3)))) (= (select |#valid| |main_~#im~0.base|) 1) (= (select (select |#memory_int| |main_#t~mem6.base|) |main_#t~mem6.offset|) 4))))) [2021-02-23 23:04:34,542 INFO L185 CegarLoopUtils]: At program point L42-1(line 42) the Hoare annotation is: (let ((.cse0 (select (select |#memory_$Pointer$.base| |main_~#inner~0.base|) (+ |main_~#inner~0.offset| 4)))) (and (= 0 |main_~#im~0.offset|) (not (= |main_~#good~0.base| .cse0)) (= 3 (select (select |#memory_int| |main_~#im~0.base|) |main_~#im~0.offset|)) (not (= .cse0 |main_~#inner~0.base|)) (= |main_~#inner~0.offset| 0) (= (select (select |#memory_int| .cse0) 0) 3) (= (select |#valid| |main_~#im~0.base|) 1) (not (= |main_~#im~0.base| |main_~#inner~0.base|)))) [2021-02-23 23:04:34,543 INFO L185 CegarLoopUtils]: At program point L44-3(line 44) the Hoare annotation is: (let ((.cse2 (+ |main_~#good~0.offset| 4))) (let ((.cse1 (select (select |#memory_$Pointer$.base| |main_~#good~0.base|) .cse2))) (let ((.cse0 (select (select |#memory_$Pointer$.base| .cse1) 4))) (and (not (= .cse0 .cse1)) (= (select (select |#memory_int| .cse0) (select (select |#memory_$Pointer$.offset| .cse1) 4)) 4) (= 0 |main_~#im~0.offset|) (not (= |main_~#good~0.base| .cse0)) (= (select (select |#memory_$Pointer$.offset| |main_~#good~0.base|) .cse2) 0) (= |main_#t~mem5.offset| 0) (= 4 (let ((.cse3 (+ |main_#t~mem5.offset| 4))) (select (select |#memory_int| (select (select |#memory_$Pointer$.base| |main_#t~mem5.base|) .cse3)) (select (select |#memory_$Pointer$.offset| |main_#t~mem5.base|) .cse3)))) (= (select |#valid| |main_~#im~0.base|) 1) (= (select (select |#memory_int| |main_#t~mem6.base|) |main_#t~mem6.offset|) 4) (= |main_#t~mem7| 4))))) [2021-02-23 23:04:34,543 INFO L185 CegarLoopUtils]: At program point L40(line 40) the Hoare annotation is: (and (= 0 |main_~#im~0.offset|) (= (select |#valid| |main_~#im~0.base|) 1)) [2021-02-23 23:04:34,543 INFO L185 CegarLoopUtils]: At program point L42-2(line 42) the Hoare annotation is: (let ((.cse3 (+ |main_~#good~0.offset| 4))) (let ((.cse1 (select (select |#memory_$Pointer$.base| |main_~#good~0.base|) .cse3))) (let ((.cse0 (select (select |#memory_$Pointer$.base| .cse1) 4)) (.cse2 (select (select |#memory_$Pointer$.base| |main_~#inner~0.base|) (+ |main_~#inner~0.offset| 4)))) (and (not (= .cse0 .cse1)) (= 0 |main_~#im~0.offset|) (not (= |main_~#good~0.base| .cse2)) (= 3 (select (select |#memory_int| |main_~#im~0.base|) |main_~#im~0.offset|)) (not (= .cse2 |main_~#inner~0.base|)) (not (= |main_~#good~0.base| .cse0)) (= (select (select |#memory_$Pointer$.offset| |main_~#good~0.base|) .cse3) 0) (= |main_~#inner~0.offset| 0) (= (select (select |#memory_int| .cse2) 0) 3) (= (select |#valid| |main_~#im~0.base|) 1) (not (= |main_~#im~0.base| |main_~#inner~0.base|)))))) [2021-02-23 23:04:34,544 INFO L185 CegarLoopUtils]: At program point L44-4(line 44) the Hoare annotation is: (let ((.cse2 (+ |main_~#good~0.offset| 4))) (let ((.cse1 (select (select |#memory_$Pointer$.base| |main_~#good~0.base|) .cse2))) (let ((.cse0 (select (select |#memory_$Pointer$.base| .cse1) 4))) (and (not (= .cse0 .cse1)) (= (select (select |#memory_int| .cse0) (select (select |#memory_$Pointer$.offset| .cse1) 4)) 4) (= 0 |main_~#im~0.offset|) (not (= |main_~#good~0.base| .cse0)) (= (select (select |#memory_$Pointer$.offset| |main_~#good~0.base|) .cse2) 0) (= |main_#t~mem5.offset| 0) (= 4 (let ((.cse3 (+ |main_#t~mem5.offset| 4))) (select (select |#memory_int| (select (select |#memory_$Pointer$.base| |main_#t~mem5.base|) .cse3)) (select (select |#memory_$Pointer$.offset| |main_#t~mem5.base|) .cse3)))) (= (select |#valid| |main_~#im~0.base|) 1) (= (select (select |#memory_int| |main_#t~mem6.base|) |main_#t~mem6.offset|) 4) (= |main_#t~mem7| 4))))) [2021-02-23 23:04:34,544 INFO L185 CegarLoopUtils]: At program point L40-1(line 40) the Hoare annotation is: (and (= 0 |main_~#im~0.offset|) (= 3 (select (select |#memory_int| |main_~#im~0.base|) |main_~#im~0.offset|)) (= (select |#valid| |main_~#im~0.base|) 1)) [2021-02-23 23:04:34,544 INFO L185 CegarLoopUtils]: At program point L44-5(line 44) the Hoare annotation is: (let ((.cse2 (+ |main_~#good~0.offset| 4))) (let ((.cse1 (select (select |#memory_$Pointer$.base| |main_~#good~0.base|) .cse2))) (let ((.cse0 (select (select |#memory_$Pointer$.base| .cse1) 4))) (and (not (= .cse0 .cse1)) (= (select (select |#memory_int| .cse0) (select (select |#memory_$Pointer$.offset| .cse1) 4)) 4) (= 0 |main_~#im~0.offset|) (not (= |main_~#good~0.base| .cse0)) (= (select (select |#memory_$Pointer$.offset| |main_~#good~0.base|) .cse2) 0) (= (select |#valid| |main_~#im~0.base|) 1) (= (select (select |#memory_int| |main_#t~mem6.base|) |main_#t~mem6.offset|) 4) (= |main_#t~mem7| 4))))) [2021-02-23 23:04:34,545 INFO L185 CegarLoopUtils]: At program point L42-3(line 42) the Hoare annotation is: (let ((.cse2 (+ |main_~#good~0.offset| 4))) (let ((.cse1 (select (select |#memory_$Pointer$.base| |main_~#good~0.base|) .cse2))) (let ((.cse0 (select (select |#memory_$Pointer$.base| .cse1) 4))) (and (not (= .cse0 .cse1)) (= (select (select |#memory_int| .cse0) (select (select |#memory_$Pointer$.offset| .cse1) 4)) 4) (not (= |main_~#good~0.base| .cse0)) (= (select (select |#memory_$Pointer$.offset| |main_~#good~0.base|) .cse2) 0))))) [2021-02-23 23:04:34,545 INFO L185 CegarLoopUtils]: At program point L44-6(line 44) the Hoare annotation is: (let ((.cse2 (+ |main_~#good~0.offset| 4))) (let ((.cse1 (select (select |#memory_$Pointer$.base| |main_~#good~0.base|) .cse2))) (let ((.cse0 (select (select |#memory_$Pointer$.base| .cse1) 4))) (and (not (= .cse0 .cse1)) (= (select (select |#memory_int| .cse0) (select (select |#memory_$Pointer$.offset| .cse1) 4)) 4) (= 0 |main_~#im~0.offset|) (not (= |main_~#good~0.base| .cse0)) (= (select (select |#memory_$Pointer$.offset| |main_~#good~0.base|) .cse2) 0) (= (select |#valid| |main_~#im~0.base|) 1) (= (select (select |#memory_int| |main_#t~mem6.base|) |main_#t~mem6.offset|) 4))))) [2021-02-23 23:04:34,545 INFO L185 CegarLoopUtils]: At program point L40-2(line 40) the Hoare annotation is: (let ((.cse2 (+ |main_~#good~0.offset| 4))) (let ((.cse1 (select (select |#memory_$Pointer$.base| |main_~#good~0.base|) .cse2))) (let ((.cse0 (select (select |#memory_$Pointer$.base| .cse1) 4))) (and (not (= .cse0 .cse1)) (= (select (select |#memory_int| .cse0) (select (select |#memory_$Pointer$.offset| .cse1) 4)) 4) (= 0 |main_~#im~0.offset|) (not (= |main_~#good~0.base| .cse0)) (= (select (select |#memory_$Pointer$.offset| |main_~#good~0.base|) .cse2) 0) (= (select |#valid| |main_~#im~0.base|) 1))))) [2021-02-23 23:04:34,545 INFO L185 CegarLoopUtils]: At program point L42-4(line 42) the Hoare annotation is: (let ((.cse2 (+ |main_~#good~0.offset| 4))) (let ((.cse1 (select (select |#memory_$Pointer$.base| |main_~#good~0.base|) .cse2))) (let ((.cse0 (select (select |#memory_$Pointer$.base| .cse1) 4))) (and (not (= .cse0 .cse1)) (= (select (select |#memory_int| .cse0) (select (select |#memory_$Pointer$.offset| .cse1) 4)) 4) (not (= |main_~#good~0.base| .cse0)) (= (select (select |#memory_$Pointer$.offset| |main_~#good~0.base|) .cse2) 0))))) [2021-02-23 23:04:34,546 INFO L185 CegarLoopUtils]: At program point L40-3(line 40) the Hoare annotation is: (let ((.cse2 (+ |main_~#good~0.offset| 4))) (let ((.cse1 (select (select |#memory_$Pointer$.base| |main_~#good~0.base|) .cse2))) (let ((.cse0 (select (select |#memory_$Pointer$.base| .cse1) 4))) (and (not (= .cse0 .cse1)) (= (select (select |#memory_int| .cse0) (select (select |#memory_$Pointer$.offset| .cse1) 4)) 4) (not (= |main_~#good~0.base| .cse0)) (= (select (select |#memory_$Pointer$.offset| |main_~#good~0.base|) .cse2) 0))))) [2021-02-23 23:04:34,546 INFO L185 CegarLoopUtils]: At program point mainENTRY(lines 38 46) the Hoare annotation is: (and (= |old(#length)| |#length|) (= |old(#valid)| |#valid|)) [2021-02-23 23:04:34,546 INFO L185 CegarLoopUtils]: At program point L45(line 45) the Hoare annotation is: (let ((.cse2 (+ |main_~#good~0.offset| 4))) (let ((.cse1 (select (select |#memory_$Pointer$.base| |main_~#good~0.base|) .cse2))) (let ((.cse0 (select (select |#memory_$Pointer$.base| .cse1) 4))) (and (not (= .cse0 .cse1)) (= (select (select |#memory_int| .cse0) (select (select |#memory_$Pointer$.offset| .cse1) 4)) 4) (= 0 |main_~#im~0.offset|) (not (= |main_~#good~0.base| .cse0)) (= (select (select |#memory_$Pointer$.offset| |main_~#good~0.base|) .cse2) 0) (= (select |#valid| |main_~#im~0.base|) 1))))) [2021-02-23 23:04:34,547 INFO L185 CegarLoopUtils]: At program point L43(line 43) the Hoare annotation is: (let ((.cse4 (+ |main_~#good~0.offset| 4)) (.cse1 (select |#memory_$Pointer$.base| |main_#t~mem3.base|))) (let ((.cse2 (select (select |#memory_$Pointer$.base| |main_~#inner~0.base|) (+ |main_~#inner~0.offset| 4))) (.cse3 (select .cse1 (+ |main_#t~mem3.offset| 4))) (.cse0 (select (select |#memory_$Pointer$.base| |main_~#good~0.base|) .cse4))) (and (= (select |#memory_$Pointer$.base| .cse0) .cse1) (not (= |main_~#good~0.base| .cse2)) (not (= |main_~#good~0.base| .cse3)) (= (select (select |#memory_$Pointer$.offset| |main_~#good~0.base|) .cse4) 0) (= |main_~#inner~0.offset| 0) (= (select (select |#memory_int| .cse2) 0) 3) (= (select |#memory_$Pointer$.offset| |main_#t~mem3.base|) (select |#memory_$Pointer$.offset| .cse0)) (= |main_#t~mem3.offset| 0) (= 0 |main_~#im~0.offset|) (= 3 (select (select |#memory_int| |main_~#im~0.base|) |main_~#im~0.offset|)) (not (= .cse2 |main_~#inner~0.base|)) (= (select |#valid| |main_~#im~0.base|) 1) (not (= |main_~#im~0.base| |main_~#inner~0.base|)) (not (= .cse3 .cse0))))) [2021-02-23 23:04:34,547 INFO L185 CegarLoopUtils]: At program point L43-1(line 43) the Hoare annotation is: (let ((.cse4 (+ |main_~#good~0.offset| 4))) (let ((.cse5 (select (select |#memory_$Pointer$.base| |main_~#good~0.base|) .cse4))) (let ((.cse2 (select |#memory_$Pointer$.offset| .cse5)) (.cse0 (select |#memory_$Pointer$.base| .cse5)) (.cse3 (select (select |#memory_$Pointer$.base| |main_~#inner~0.base|) (+ |main_~#inner~0.offset| 4))) (.cse1 (select |#memory_$Pointer$.base| |main_#t~mem3.base|))) (and (= .cse0 .cse1) (= (select .cse2 4) |main_#t~mem4.offset|) (not (= |main_~#good~0.base| .cse3)) (= (select (select |#memory_$Pointer$.offset| |main_~#good~0.base|) .cse4) 0) (= |main_~#inner~0.offset| 0) (= (select (select |#memory_int| .cse3) 0) 3) (= (select |#memory_$Pointer$.offset| |main_#t~mem3.base|) .cse2) (= |main_#t~mem4.base| (select .cse0 4)) (= |main_#t~mem3.offset| 0) (= 0 |main_~#im~0.offset|) (not (= |main_~#good~0.base| |main_#t~mem4.base|)) (= 3 (select (select |#memory_int| |main_~#im~0.base|) |main_~#im~0.offset|)) (not (= .cse3 |main_~#inner~0.base|)) (= (select |#valid| |main_~#im~0.base|) 1) (not (= |main_~#im~0.base| |main_~#inner~0.base|)) (not (= (select .cse1 (+ |main_#t~mem3.offset| 4)) .cse5)))))) [2021-02-23 23:04:34,547 INFO L185 CegarLoopUtils]: At program point L41(line 41) the Hoare annotation is: (and (= 0 |main_~#im~0.offset|) (= 3 (select (select |#memory_int| |main_~#im~0.base|) |main_~#im~0.offset|)) (= |main_~#inner~0.offset| 0) (= (select |#valid| |main_~#im~0.base|) 1) (not (= |main_~#im~0.base| |main_~#inner~0.base|))) [2021-02-23 23:04:34,548 INFO L185 CegarLoopUtils]: At program point L43-2(line 43) the Hoare annotation is: (let ((.cse3 (+ |main_~#good~0.offset| 4))) (let ((.cse2 (select (select |#memory_$Pointer$.base| |main_~#good~0.base|) .cse3))) (let ((.cse1 (select (select |#memory_$Pointer$.offset| .cse2) 4)) (.cse0 (select (select |#memory_$Pointer$.base| .cse2) 4))) (and (= (select (select |#memory_int| .cse0) .cse1) 4) (= 0 |main_~#im~0.offset|) (not (= |main_~#good~0.base| |main_#t~mem4.base|)) (= .cse1 |main_#t~mem4.offset|) (not (= |main_#t~mem4.base| .cse2)) (= (select (select |#memory_$Pointer$.offset| |main_~#good~0.base|) .cse3) 0) (= (select |#valid| |main_~#im~0.base|) 1) (= |main_#t~mem4.base| .cse0))))) [2021-02-23 23:04:34,548 INFO L185 CegarLoopUtils]: At program point L41-1(line 41) the Hoare annotation is: (and (= 0 |main_~#im~0.offset|) (= 3 (select (select |#memory_int| |main_~#im~0.base|) |main_~#im~0.offset|)) (= |main_~#inner~0.offset| 0) (= (select |#valid| |main_~#im~0.base|) 1) (not (= |main_~#im~0.base| |main_~#inner~0.base|))) [2021-02-23 23:04:34,548 INFO L185 CegarLoopUtils]: At program point L43-3(line 43) the Hoare annotation is: (let ((.cse2 (+ |main_~#good~0.offset| 4))) (let ((.cse1 (select (select |#memory_$Pointer$.base| |main_~#good~0.base|) .cse2))) (let ((.cse0 (select (select |#memory_$Pointer$.base| .cse1) 4))) (and (not (= .cse0 .cse1)) (= (select (select |#memory_int| .cse0) (select (select |#memory_$Pointer$.offset| .cse1) 4)) 4) (= 0 |main_~#im~0.offset|) (not (= |main_~#good~0.base| .cse0)) (= (select (select |#memory_$Pointer$.offset| |main_~#good~0.base|) .cse2) 0) (= (select |#valid| |main_~#im~0.base|) 1))))) [2021-02-23 23:04:34,549 INFO L185 CegarLoopUtils]: At program point L41-2(line 41) the Hoare annotation is: (let ((.cse0 (select (select |#memory_$Pointer$.base| |main_~#inner~0.base|) (+ |main_~#inner~0.offset| 4)))) (and (= 0 |main_~#im~0.offset|) (= 3 (select (select |#memory_int| |main_~#im~0.base|) |main_~#im~0.offset|)) (not (= .cse0 |main_~#inner~0.base|)) (= |main_~#inner~0.offset| 0) (= (select (select |#memory_int| .cse0) 0) 3) (= (select |#valid| |main_~#im~0.base|) 1) (not (= |main_~#im~0.base| |main_~#inner~0.base|)))) [2021-02-23 23:04:34,549 INFO L185 CegarLoopUtils]: At program point L41-3(line 41) the Hoare annotation is: (let ((.cse2 (+ |main_~#good~0.offset| 4))) (let ((.cse1 (select (select |#memory_$Pointer$.base| |main_~#good~0.base|) .cse2))) (let ((.cse0 (select (select |#memory_$Pointer$.base| .cse1) 4))) (and (not (= .cse0 .cse1)) (= (select (select |#memory_int| .cse0) (select (select |#memory_$Pointer$.offset| .cse1) 4)) 4) (not (= |main_~#good~0.base| .cse0)) (= (select (select |#memory_$Pointer$.offset| |main_~#good~0.base|) .cse2) 0))))) [2021-02-23 23:04:34,549 INFO L185 CegarLoopUtils]: At program point L41-4(line 41) the Hoare annotation is: (let ((.cse2 (+ |main_~#good~0.offset| 4))) (let ((.cse1 (select (select |#memory_$Pointer$.base| |main_~#good~0.base|) .cse2))) (let ((.cse0 (select (select |#memory_$Pointer$.base| .cse1) 4))) (and (not (= .cse0 .cse1)) (= (select (select |#memory_int| .cse0) (select (select |#memory_$Pointer$.offset| .cse1) 4)) 4) (not (= |main_~#good~0.base| .cse0)) (= (select (select |#memory_$Pointer$.offset| |main_~#good~0.base|) .cse2) 0))))) [2021-02-23 23:04:34,549 INFO L185 CegarLoopUtils]: At program point L15(line 15) the Hoare annotation is: (= |__VERIFIER_assert_#in~cond| 0) [2021-02-23 23:04:34,549 INFO L192 CegarLoopUtils]: At program point __VERIFIER_assertENTRY(lines 13 18) the Hoare annotation is: true [2021-02-23 23:04:34,550 INFO L185 CegarLoopUtils]: At program point L14(lines 14 16) the Hoare annotation is: (or (= |__VERIFIER_assert_#in~cond| 0) (not (= __VERIFIER_assert_~cond 0))) [2021-02-23 23:04:34,550 INFO L185 CegarLoopUtils]: At program point L15-1(line 15) the Hoare annotation is: (= |__VERIFIER_assert_#in~cond| 0) [2021-02-23 23:04:34,550 INFO L185 CegarLoopUtils]: At program point L14-2(lines 13 18) the Hoare annotation is: (or (= |__VERIFIER_assert_#in~cond| 0) (not (= __VERIFIER_assert_~cond 0))) [2021-02-23 23:04:34,550 INFO L185 CegarLoopUtils]: At program point __VERIFIER_assertEXIT(lines 13 18) the Hoare annotation is: (or (= |__VERIFIER_assert_#in~cond| 0) (not (= __VERIFIER_assert_~cond 0))) [2021-02-23 23:04:34,550 INFO L185 CegarLoopUtils]: At program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 15) the Hoare annotation is: (= |__VERIFIER_assert_#in~cond| 0) [2021-02-23 23:04:34,569 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.02 11:04:34 BoogieIcfgContainer [2021-02-23 23:04:34,569 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-02-23 23:04:34,571 INFO L168 Benchmark]: Toolchain (without parser) took 3816.87 ms. Allocated memory was 168.8 MB in the beginning and 216.0 MB in the end (delta: 47.2 MB). Free memory was 144.3 MB in the beginning and 175.8 MB in the end (delta: -31.5 MB). Peak memory consumption was 121.5 MB. Max. memory is 8.0 GB. [2021-02-23 23:04:34,571 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 168.8 MB. Free memory is still 140.9 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-02-23 23:04:34,572 INFO L168 Benchmark]: CACSL2BoogieTranslator took 244.37 ms. Allocated memory is still 168.8 MB. Free memory was 143.0 MB in the beginning and 133.4 MB in the end (delta: 9.7 MB). Peak memory consumption was 10.5 MB. Max. memory is 8.0 GB. [2021-02-23 23:04:34,573 INFO L168 Benchmark]: Boogie Preprocessor took 37.64 ms. Allocated memory is still 168.8 MB. Free memory was 133.4 MB in the beginning and 131.7 MB in the end (delta: 1.7 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2021-02-23 23:04:34,574 INFO L168 Benchmark]: RCFGBuilder took 643.87 ms. Allocated memory is still 168.8 MB. Free memory was 131.7 MB in the beginning and 148.0 MB in the end (delta: -16.3 MB). Peak memory consumption was 19.7 MB. Max. memory is 8.0 GB. [2021-02-23 23:04:34,576 INFO L168 Benchmark]: TraceAbstraction took 2875.01 ms. Allocated memory was 168.8 MB in the beginning and 216.0 MB in the end (delta: 47.2 MB). Free memory was 147.5 MB in the beginning and 175.8 MB in the end (delta: -28.3 MB). Peak memory consumption was 123.9 MB. Max. memory is 8.0 GB. [2021-02-23 23:04:34,580 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 168.8 MB. Free memory is still 140.9 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 244.37 ms. Allocated memory is still 168.8 MB. Free memory was 143.0 MB in the beginning and 133.4 MB in the end (delta: 9.7 MB). Peak memory consumption was 10.5 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 37.64 ms. Allocated memory is still 168.8 MB. Free memory was 133.4 MB in the beginning and 131.7 MB in the end (delta: 1.7 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 643.87 ms. Allocated memory is still 168.8 MB. Free memory was 131.7 MB in the beginning and 148.0 MB in the end (delta: -16.3 MB). Peak memory consumption was 19.7 MB. Max. memory is 8.0 GB. * TraceAbstraction took 2875.01 ms. Allocated memory was 168.8 MB in the beginning and 216.0 MB in the end (delta: 47.2 MB). Free memory was 147.5 MB in the beginning and 175.8 MB in the end (delta: -28.3 MB). Peak memory consumption was 123.9 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 15]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - ProcedureContractResult [Line: 38]: Procedure Contract for main Derived contract for procedure main: 1 - ProcedureContractResult [Line: 13]: Procedure Contract for __VERIFIER_assert Derived contract for procedure __VERIFIER_assert: \old(cond) == 0 || !(cond == 0) - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 54 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 2.1s, OverallIterations: 1, TraceHistogramMax: 1, AutomataDifference: 1.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.6s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 26 SDtfs, 73 SDslu, 247 SDs, 0 SdLazy, 283 SolverSat, 17 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 36 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 177 ImplicationChecksByTransitivity, 1.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=49occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 49 LocationsWithAnnotation, 49 PreInvPairs, 65 NumberOfFragments, 2038 HoareAnnotationTreeSize, 49 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.1s HoareSimplificationTime, 49 FomulaSimplificationsInter, 137 FormulaSimplificationTreeSizeReductionInter, 0.4s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.8s InterpolantComputationTime, 31 NumberOfCodeBlocks, 31 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 30 ConstructedInterpolants, 0 QuantifiedInterpolants, 14730 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...