/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationWernerOverapprox_32.epf -i ../../../trunk/examples/svcomp/bitvector-regression/signextension2-1.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-36cd7be [2021-02-24 03:56:42,024 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-02-24 03:56:42,029 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-02-24 03:56:42,090 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-02-24 03:56:42,121 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-02-24 03:56:42,124 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-02-24 03:56:42,127 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-02-24 03:56:42,129 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-02-24 03:56:42,133 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-02-24 03:56:42,135 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-02-24 03:56:42,142 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-02-24 03:56:42,151 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-02-24 03:56:42,153 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-02-24 03:56:42,155 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-02-24 03:56:42,157 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-02-24 03:56:42,160 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-02-24 03:56:42,183 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-02-24 03:56:42,197 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-02-24 03:56:42,199 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-02-24 03:56:42,200 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-02-24 03:56:42,201 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationWernerOverapprox_32.epf [2021-02-24 03:56:42,224 INFO L113 SettingsManager]: Loading preferences was successful [2021-02-24 03:56:42,224 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-02-24 03:56:42,228 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-02-24 03:56:42,229 INFO L138 SettingsManager]: * sizeof long=4 [2021-02-24 03:56:42,229 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-02-24 03:56:42,229 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-02-24 03:56:42,230 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-02-24 03:56:42,230 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-02-24 03:56:42,230 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-02-24 03:56:42,230 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-02-24 03:56:42,231 INFO L138 SettingsManager]: * sizeof long double=12 [2021-02-24 03:56:42,232 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-02-24 03:56:42,232 INFO L138 SettingsManager]: * Use constant arrays=true [2021-02-24 03:56:42,232 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-02-24 03:56:42,233 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-02-24 03:56:42,233 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2021-02-24 03:56:42,233 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-02-24 03:56:42,233 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-02-24 03:56:42,234 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-02-24 03:56:42,234 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-02-24 03:56:42,234 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2021-02-24 03:56:42,234 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-02-24 03:56:42,235 INFO L138 SettingsManager]: * Loop acceleration method that is used by accelerated interpolation=WERNER_OVERAPPROX [2021-02-24 03:56:42,235 INFO L138 SettingsManager]: * Use separate solver for trace checks=false WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-02-24 03:56:42,639 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-02-24 03:56:42,680 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-02-24 03:56:42,683 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-02-24 03:56:42,685 INFO L271 PluginConnector]: Initializing CDTParser... [2021-02-24 03:56:42,686 INFO L275 PluginConnector]: CDTParser initialized [2021-02-24 03:56:42,687 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/bitvector-regression/signextension2-1.c [2021-02-24 03:56:42,775 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1883d9170/242a10bc60c34edcbec3c836fb3c7bf2/FLAG36dae29db [2021-02-24 03:56:43,393 INFO L306 CDTParser]: Found 1 translation units. [2021-02-24 03:56:43,394 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/bitvector-regression/signextension2-1.c [2021-02-24 03:56:43,403 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1883d9170/242a10bc60c34edcbec3c836fb3c7bf2/FLAG36dae29db [2021-02-24 03:56:43,766 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1883d9170/242a10bc60c34edcbec3c836fb3c7bf2 [2021-02-24 03:56:43,770 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-02-24 03:56:43,783 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-02-24 03:56:43,785 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-02-24 03:56:43,786 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-02-24 03:56:43,790 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-02-24 03:56:43,791 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.02 03:56:43" (1/1) ... [2021-02-24 03:56:43,793 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2317716a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 03:56:43, skipping insertion in model container [2021-02-24 03:56:43,793 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.02 03:56:43" (1/1) ... [2021-02-24 03:56:43,802 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-02-24 03:56:43,816 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-02-24 03:56:43,976 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/bitvector-regression/signextension2-1.c[589,602] [2021-02-24 03:56:43,981 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-24 03:56:43,992 INFO L203 MainTranslator]: Completed pre-run [2021-02-24 03:56:44,009 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/bitvector-regression/signextension2-1.c[589,602] [2021-02-24 03:56:44,010 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-24 03:56:44,026 INFO L208 MainTranslator]: Completed translation [2021-02-24 03:56:44,027 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 03:56:44 WrapperNode [2021-02-24 03:56:44,027 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-02-24 03:56:44,028 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-02-24 03:56:44,028 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-02-24 03:56:44,029 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-02-24 03:56:44,042 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 03:56:44" (1/1) ... [2021-02-24 03:56:44,043 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 03:56:44" (1/1) ... [2021-02-24 03:56:44,051 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 03:56:44" (1/1) ... [2021-02-24 03:56:44,051 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 03:56:44" (1/1) ... [2021-02-24 03:56:44,057 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 03:56:44" (1/1) ... [2021-02-24 03:56:44,059 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 03:56:44" (1/1) ... [2021-02-24 03:56:44,060 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 03:56:44" (1/1) ... [2021-02-24 03:56:44,063 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-02-24 03:56:44,064 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-02-24 03:56:44,064 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-02-24 03:56:44,064 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-02-24 03:56:44,065 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 03:56:44" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-02-24 03:56:44,181 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-02-24 03:56:44,182 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-02-24 03:56:44,182 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2021-02-24 03:56:44,182 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-02-24 03:56:44,182 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2021-02-24 03:56:44,182 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2021-02-24 03:56:44,183 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2021-02-24 03:56:44,183 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-02-24 03:56:44,183 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-02-24 03:56:44,183 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-02-24 03:56:44,183 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-02-24 03:56:44,184 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-02-24 03:56:44,184 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-02-24 03:56:44,184 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-02-24 03:56:44,184 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-02-24 03:56:44,511 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-02-24 03:56:44,511 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-02-24 03:56:44,513 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.02 03:56:44 BoogieIcfgContainer [2021-02-24 03:56:44,514 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-02-24 03:56:44,520 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-02-24 03:56:44,523 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-02-24 03:56:44,530 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-02-24 03:56:44,531 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.02 03:56:43" (1/3) ... [2021-02-24 03:56:44,532 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@55195a16 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.02 03:56:44, skipping insertion in model container [2021-02-24 03:56:44,532 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 03:56:44" (2/3) ... [2021-02-24 03:56:44,532 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@55195a16 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.02 03:56:44, skipping insertion in model container [2021-02-24 03:56:44,533 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.02 03:56:44" (3/3) ... [2021-02-24 03:56:44,538 INFO L111 eAbstractionObserver]: Analyzing ICFG signextension2-1.c [2021-02-24 03:56:44,554 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2021-02-24 03:56:44,568 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-02-24 03:56:44,597 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-02-24 03:56:44,624 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-02-24 03:56:44,625 INFO L377 AbstractCegarLoop]: Hoare is true [2021-02-24 03:56:44,625 INFO L378 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2021-02-24 03:56:44,625 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-02-24 03:56:44,625 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-02-24 03:56:44,626 INFO L381 AbstractCegarLoop]: Difference is false [2021-02-24 03:56:44,626 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-02-24 03:56:44,626 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-02-24 03:56:44,643 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states. [2021-02-24 03:56:44,654 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-02-24 03:56:44,655 INFO L414 BasicCegarLoop]: Found error trace [2021-02-24 03:56:44,656 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-24 03:56:44,656 INFO L428 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-24 03:56:44,663 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-24 03:56:44,663 INFO L82 PathProgramCache]: Analyzing trace with hash -1995346262, now seen corresponding path program 1 times [2021-02-24 03:56:44,673 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-24 03:56:44,673 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [751424939] [2021-02-24 03:56:44,674 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-24 03:56:44,766 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-24 03:56:44,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:56:45,174 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:56:45,176 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:56:45,205 WARN L141 QuantifierPusher]: treesize reduction 122, result has 43.8 percent of original size [2021-02-24 03:56:45,212 WARN L147 QuantifierPusher]: treesize reduction 122, result has 43.8 percent of original size 95 [2021-02-24 03:56:45,343 WARN L141 QuantifierPusher]: treesize reduction 190, result has 50.4 percent of original size [2021-02-24 03:56:45,366 WARN L147 QuantifierPusher]: treesize reduction 190, result has 50.4 percent of original size 193 [2021-02-24 03:56:45,531 WARN L141 QuantifierPusher]: treesize reduction 210, result has 54.6 percent of original size [2021-02-24 03:56:45,556 WARN L147 QuantifierPusher]: treesize reduction 210, result has 54.6 percent of original size 253 [2021-02-24 03:56:45,688 WARN L202 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 18 [2021-02-24 03:56:45,719 WARN L141 QuantifierPusher]: treesize reduction 208, result has 55.4 percent of original size [2021-02-24 03:56:45,730 WARN L147 QuantifierPusher]: treesize reduction 208, result has 55.4 percent of original size 258 [2021-02-24 03:56:45,835 WARN L141 QuantifierPusher]: treesize reduction 8, result has 89.0 percent of original size [2021-02-24 03:56:45,837 WARN L147 QuantifierPusher]: treesize reduction 8, result has 89.0 percent of original size 65 [2021-02-24 03:56:45,887 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:56:45,888 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:56:45,921 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-24 03:56:45,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:56:45,939 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:56:45,940 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:56:45,947 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-24 03:56:45,950 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [751424939] [2021-02-24 03:56:45,952 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-24 03:56:45,952 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-02-24 03:56:45,953 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1536685338] [2021-02-24 03:56:45,963 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-02-24 03:56:45,963 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-24 03:56:45,979 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-02-24 03:56:45,980 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2021-02-24 03:56:45,983 INFO L87 Difference]: Start difference. First operand 27 states. Second operand 8 states. [2021-02-24 03:56:46,362 WARN L202 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 58 [2021-02-24 03:56:46,388 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-24 03:56:46,388 INFO L93 Difference]: Finished difference Result 31 states and 30 transitions. [2021-02-24 03:56:46,389 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-02-24 03:56:46,391 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 19 [2021-02-24 03:56:46,392 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-24 03:56:46,401 INFO L225 Difference]: With dead ends: 31 [2021-02-24 03:56:46,401 INFO L226 Difference]: Without dead ends: 0 [2021-02-24 03:56:46,407 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=59, Invalid=97, Unknown=0, NotChecked=0, Total=156 [2021-02-24 03:56:46,428 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-02-24 03:56:46,435 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-02-24 03:56:46,436 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2021-02-24 03:56:46,437 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-02-24 03:56:46,438 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 19 [2021-02-24 03:56:46,439 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-24 03:56:46,439 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-02-24 03:56:46,439 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2021-02-24 03:56:46,439 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-02-24 03:56:46,439 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-02-24 03:56:46,440 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-02-24 03:56:46,442 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-02-24 03:56:46,962 INFO L189 CegarLoopUtils]: For program point reach_errorEXIT(line 3) no Hoare annotation was computed. [2021-02-24 03:56:46,962 INFO L189 CegarLoopUtils]: For program point reach_errorENTRY(line 3) no Hoare annotation was computed. [2021-02-24 03:56:46,962 INFO L189 CegarLoopUtils]: For program point reach_errorFINAL(line 3) no Hoare annotation was computed. [2021-02-24 03:56:46,963 INFO L192 CegarLoopUtils]: At program point L3-2(line 3) the Hoare annotation is: true [2021-02-24 03:56:46,963 INFO L192 CegarLoopUtils]: At program point L3-3(line 3) the Hoare annotation is: true [2021-02-24 03:56:46,963 INFO L192 CegarLoopUtils]: At program point L-1(line -1) the Hoare annotation is: true [2021-02-24 03:56:46,963 INFO L192 CegarLoopUtils]: At program point L3-4(line 3) the Hoare annotation is: true [2021-02-24 03:56:46,963 INFO L192 CegarLoopUtils]: At program point L-1-1(line -1) the Hoare annotation is: true [2021-02-24 03:56:46,963 INFO L192 CegarLoopUtils]: At program point ULTIMATE.initFINAL(line 3) the Hoare annotation is: true [2021-02-24 03:56:46,964 INFO L185 CegarLoopUtils]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= |#t~string5.base| |old(#t~string5.base)|) (= |#t~string5.offset| |old(#t~string5.offset)|) (= |old(#length)| |#length|) (= |#t~string6.base| |old(#t~string6.base)|) (= |#t~string6.offset| |old(#t~string6.offset)|) (= |#t~string4.base| |old(#t~string4.base)|) (= |#NULL.base| |old(#NULL.base)|) (= |#t~string4.offset| |old(#t~string4.offset)|) (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#valid)| |#valid|)) [2021-02-24 03:56:46,964 INFO L192 CegarLoopUtils]: At program point L3(line 3) the Hoare annotation is: true [2021-02-24 03:56:46,965 INFO L192 CegarLoopUtils]: At program point L3-1(line 3) the Hoare annotation is: true [2021-02-24 03:56:46,965 INFO L192 CegarLoopUtils]: At program point ULTIMATE.initEXIT(line -1) the Hoare annotation is: true [2021-02-24 03:56:46,965 INFO L192 CegarLoopUtils]: At program point ULTIMATE.startEXIT(line -1) the Hoare annotation is: true [2021-02-24 03:56:46,966 INFO L192 CegarLoopUtils]: At program point L-1(line -1) the Hoare annotation is: true [2021-02-24 03:56:46,967 INFO L192 CegarLoopUtils]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2021-02-24 03:56:46,967 INFO L192 CegarLoopUtils]: At program point ULTIMATE.startFINAL(line -1) the Hoare annotation is: true [2021-02-24 03:56:46,968 INFO L185 CegarLoopUtils]: At program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 19) the Hoare annotation is: false [2021-02-24 03:56:46,968 INFO L192 CegarLoopUtils]: At program point mainENTRY(lines 5 21) the Hoare annotation is: true [2021-02-24 03:56:46,970 INFO L185 CegarLoopUtils]: At program point mainEXIT(lines 5 21) the Hoare annotation is: (let ((.cse0 (div main_~allOne~0 4294967296))) (and (<= 0 (+ main_~allOne~0 1)) (= main_~allOne~0 (+ (* .cse0 4294967296) main_~castToLong~0 4294967296)) (<= (+ main_~castToULong~0 1) 0) (= (+ main_~castToLong2~0 1) 0) (= (+ main_~castToInt~0 1) 0) (<= (+ .cse0 1) 0) (< (+ (* 4294967296 (div main_~castToULong~0 4294967296)) 4294967294) main_~castToULong~0))) [2021-02-24 03:56:46,970 INFO L185 CegarLoopUtils]: At program point L20(line 20) the Hoare annotation is: false [2021-02-24 03:56:46,970 INFO L185 CegarLoopUtils]: At program point L19(line 19) the Hoare annotation is: false [2021-02-24 03:56:46,971 INFO L185 CegarLoopUtils]: At program point L18(line 18) the Hoare annotation is: (let ((.cse0 (div main_~allOne~0 4294967296))) (and (<= 0 (+ main_~allOne~0 1)) (= main_~allOne~0 (+ (* .cse0 4294967296) main_~castToLong~0 4294967296)) (<= (+ main_~castToULong~0 1) 0) (= (+ main_~castToLong2~0 1) 0) (= (+ main_~castToInt~0 1) 0) (<= (+ .cse0 1) 0) (< (+ (* 4294967296 (div main_~castToULong~0 4294967296)) 4294967294) main_~castToULong~0))) [2021-02-24 03:56:46,971 INFO L185 CegarLoopUtils]: At program point L15(lines 5 21) the Hoare annotation is: false [2021-02-24 03:56:46,971 INFO L185 CegarLoopUtils]: At program point L13(lines 13 16) the Hoare annotation is: (let ((.cse0 (div main_~allOne~0 4294967296))) (and (<= 0 (+ main_~allOne~0 1)) (= main_~allOne~0 (+ (* .cse0 4294967296) main_~castToLong~0 4294967296)) (<= (+ main_~castToULong~0 1) 0) (= (+ main_~castToLong2~0 1) 0) (= (+ main_~castToInt~0 1) 0) (<= (+ .cse0 1) 0) (< (+ (* 4294967296 (div main_~castToULong~0 4294967296)) 4294967294) main_~castToULong~0))) [2021-02-24 03:56:46,972 INFO L185 CegarLoopUtils]: At program point mainFINAL(lines 5 21) the Hoare annotation is: (let ((.cse0 (div main_~allOne~0 4294967296))) (and (<= 0 (+ main_~allOne~0 1)) (= main_~allOne~0 (+ (* .cse0 4294967296) main_~castToLong~0 4294967296)) (<= (+ main_~castToULong~0 1) 0) (= (+ main_~castToLong2~0 1) 0) (= (+ main_~castToInt~0 1) 0) (<= (+ .cse0 1) 0) (< (+ (* 4294967296 (div main_~castToULong~0 4294967296)) 4294967294) main_~castToULong~0))) [2021-02-24 03:56:46,972 INFO L185 CegarLoopUtils]: At program point L11(line 11) the Hoare annotation is: (let ((.cse0 (div main_~allOne~0 4294967296))) (and (<= 0 (+ main_~allOne~0 1)) (= main_~allOne~0 (+ (* .cse0 4294967296) main_~castToLong~0 4294967296)) (= (+ main_~castToLong2~0 1) 0) (= (+ main_~castToInt~0 1) 0) (<= (+ .cse0 1) 0))) [2021-02-24 03:56:46,973 INFO L185 CegarLoopUtils]: At program point L10(line 10) the Hoare annotation is: (let ((.cse0 (div main_~allOne~0 4294967296))) (and (<= 0 (+ main_~allOne~0 1)) (= main_~allOne~0 (+ (* .cse0 4294967296) main_~castToLong~0 4294967296)) (= (+ main_~castToInt~0 1) 0) (<= (+ .cse0 1) 0))) [2021-02-24 03:56:46,975 INFO L185 CegarLoopUtils]: At program point L9(line 9) the Hoare annotation is: (and (<= 0 (+ main_~allOne~0 1)) (= (+ main_~castToInt~0 1) 0) (<= (+ (div main_~allOne~0 4294967296) 1) 0)) [2021-02-24 03:56:46,975 INFO L185 CegarLoopUtils]: At program point L8(line 8) the Hoare annotation is: (and (<= 0 (+ main_~allOne~0 1)) (<= (+ (div main_~allOne~0 4294967296) 1) 0)) [2021-02-24 03:56:47,005 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.02 03:56:47 BoogieIcfgContainer [2021-02-24 03:56:47,005 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-02-24 03:56:47,013 INFO L168 Benchmark]: Toolchain (without parser) took 3235.07 ms. Allocated memory was 174.1 MB in the beginning and 233.8 MB in the end (delta: 59.8 MB). Free memory was 149.6 MB in the beginning and 130.7 MB in the end (delta: 18.9 MB). Peak memory consumption was 79.4 MB. Max. memory is 8.0 GB. [2021-02-24 03:56:47,014 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 174.1 MB. Free memory is still 149.2 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-02-24 03:56:47,017 INFO L168 Benchmark]: CACSL2BoogieTranslator took 242.07 ms. Allocated memory is still 174.1 MB. Free memory was 148.5 MB in the beginning and 139.3 MB in the end (delta: 9.2 MB). Peak memory consumption was 8.4 MB. Max. memory is 8.0 GB. [2021-02-24 03:56:47,019 INFO L168 Benchmark]: Boogie Preprocessor took 34.64 ms. Allocated memory is still 174.1 MB. Free memory was 139.3 MB in the beginning and 138.0 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2021-02-24 03:56:47,020 INFO L168 Benchmark]: RCFGBuilder took 450.07 ms. Allocated memory is still 174.1 MB. Free memory was 137.9 MB in the beginning and 125.1 MB in the end (delta: 12.8 MB). Peak memory consumption was 12.6 MB. Max. memory is 8.0 GB. [2021-02-24 03:56:47,021 INFO L168 Benchmark]: TraceAbstraction took 2485.85 ms. Allocated memory was 174.1 MB in the beginning and 233.8 MB in the end (delta: 59.8 MB). Free memory was 124.7 MB in the beginning and 130.7 MB in the end (delta: -6.0 MB). Peak memory consumption was 55.3 MB. Max. memory is 8.0 GB. [2021-02-24 03:56:47,036 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 174.1 MB. Free memory is still 149.2 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 242.07 ms. Allocated memory is still 174.1 MB. Free memory was 148.5 MB in the beginning and 139.3 MB in the end (delta: 9.2 MB). Peak memory consumption was 8.4 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 34.64 ms. Allocated memory is still 174.1 MB. Free memory was 139.3 MB in the beginning and 138.0 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 450.07 ms. Allocated memory is still 174.1 MB. Free memory was 137.9 MB in the beginning and 125.1 MB in the end (delta: 12.8 MB). Peak memory consumption was 12.6 MB. Max. memory is 8.0 GB. * TraceAbstraction took 2485.85 ms. Allocated memory was 174.1 MB in the beginning and 233.8 MB in the end (delta: 59.8 MB). Free memory was 124.7 MB in the beginning and 130.7 MB in the end (delta: -6.0 MB). Peak memory consumption was 55.3 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 19]: 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 - InvariantResult [Line: 5]: Loop Invariant Derived loop invariant: 0 - ProcedureContractResult [Line: 5]: Procedure Contract for main Derived contract for procedure main: (((((0 <= allOne + 1 && allOne == allOne / 4294967296 * 4294967296 + castToLong + 4294967296) && castToULong + 1 <= 0) && castToLong2 + 1 == 0) && castToInt + 1 == 0) && allOne / 4294967296 + 1 <= 0) && 4294967296 * (castToULong / 4294967296) + 4294967294 < castToULong - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 30 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 1.8s, OverallIterations: 1, TraceHistogramMax: 1, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.5s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 17 SDtfs, 33 SDslu, 32 SDs, 0 SdLazy, 20 SolverSat, 1 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=27occurred 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, 27 LocationsWithAnnotation, 27 PreInvPairs, 31 NumberOfFragments, 329 HoareAnnotationTreeSize, 27 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.1s HoareSimplificationTime, 27 FomulaSimplificationsInter, 270 FormulaSimplificationTreeSizeReductionInter, 0.3s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: No data available, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...