/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-b7b32d2 [2021-02-22 01:32:36,148 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-02-22 01:32:36,151 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-02-22 01:32:36,189 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-02-22 01:32:36,203 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-02-22 01:32:36,205 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-02-22 01:32:36,206 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-02-22 01:32:36,218 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-02-22 01:32:36,221 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-02-22 01:32:36,229 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-02-22 01:32:36,235 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-02-22 01:32:36,240 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-02-22 01:32:36,242 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-02-22 01:32:36,248 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-02-22 01:32:36,249 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-02-22 01:32:36,251 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-02-22 01:32:36,259 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-02-22 01:32:36,279 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-02-22 01:32:36,280 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-02-22 01:32:36,282 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-02-22 01:32:36,283 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationWernerOverapprox_32.epf [2021-02-22 01:32:36,306 INFO L113 SettingsManager]: Loading preferences was successful [2021-02-22 01:32:36,307 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-02-22 01:32:36,313 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-02-22 01:32:36,313 INFO L138 SettingsManager]: * sizeof long=4 [2021-02-22 01:32:36,313 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-02-22 01:32:36,314 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-02-22 01:32:36,314 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-02-22 01:32:36,314 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-02-22 01:32:36,314 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-02-22 01:32:36,315 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-02-22 01:32:36,316 INFO L138 SettingsManager]: * sizeof long double=12 [2021-02-22 01:32:36,316 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-02-22 01:32:36,317 INFO L138 SettingsManager]: * Use constant arrays=true [2021-02-22 01:32:36,317 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-02-22 01:32:36,317 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-02-22 01:32:36,317 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2021-02-22 01:32:36,318 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-02-22 01:32:36,318 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-02-22 01:32:36,318 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-02-22 01:32:36,318 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-02-22 01:32:36,319 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2021-02-22 01:32:36,319 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-02-22 01:32:36,319 INFO L138 SettingsManager]: * Loop acceleration method that is used by accelerated interpolation=WERNER_OVERAPPROX [2021-02-22 01:32:36,319 INFO L138 SettingsManager]: * Use separate solver for trace checks=false WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-02-22 01:32:36,797 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-02-22 01:32:36,828 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-02-22 01:32:36,832 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-02-22 01:32:36,833 INFO L271 PluginConnector]: Initializing CDTParser... [2021-02-22 01:32:36,834 INFO L275 PluginConnector]: CDTParser initialized [2021-02-22 01:32:36,835 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/bitvector-regression/signextension2-1.c [2021-02-22 01:32:36,921 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d0af9a20e/37aa21fdede84351ac8fb193806de961/FLAGe410d491a [2021-02-22 01:32:37,634 INFO L306 CDTParser]: Found 1 translation units. [2021-02-22 01:32:37,634 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/bitvector-regression/signextension2-1.c [2021-02-22 01:32:37,641 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d0af9a20e/37aa21fdede84351ac8fb193806de961/FLAGe410d491a [2021-02-22 01:32:37,656 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d0af9a20e/37aa21fdede84351ac8fb193806de961 [2021-02-22 01:32:37,659 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-02-22 01:32:37,673 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-02-22 01:32:37,675 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-02-22 01:32:37,675 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-02-22 01:32:37,679 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-02-22 01:32:37,680 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.02 01:32:37" (1/1) ... [2021-02-22 01:32:37,681 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@9dbf904 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 01:32:37, skipping insertion in model container [2021-02-22 01:32:37,681 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.02 01:32:37" (1/1) ... [2021-02-22 01:32:37,690 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-02-22 01:32:37,704 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-02-22 01:32:37,860 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] [2021-02-22 01:32:37,865 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-22 01:32:37,877 INFO L203 MainTranslator]: Completed pre-run [2021-02-22 01:32:37,896 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] [2021-02-22 01:32:37,897 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-22 01:32:37,924 INFO L208 MainTranslator]: Completed translation [2021-02-22 01:32:37,926 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 01:32:37 WrapperNode [2021-02-22 01:32:37,926 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-02-22 01:32:37,928 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-02-22 01:32:37,928 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-02-22 01:32:37,929 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-02-22 01:32:37,946 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 01:32:37" (1/1) ... [2021-02-22 01:32:37,946 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 01:32:37" (1/1) ... [2021-02-22 01:32:37,955 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 01:32:37" (1/1) ... [2021-02-22 01:32:37,956 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 01:32:37" (1/1) ... [2021-02-22 01:32:37,977 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 01:32:37" (1/1) ... [2021-02-22 01:32:37,980 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 01:32:37" (1/1) ... [2021-02-22 01:32:37,982 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 01:32:37" (1/1) ... [2021-02-22 01:32:37,989 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-02-22 01:32:37,992 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-02-22 01:32:37,992 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-02-22 01:32:37,992 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-02-22 01:32:37,994 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 01:32:37" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-02-22 01:32:38,108 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-02-22 01:32:38,108 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-02-22 01:32:38,108 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2021-02-22 01:32:38,109 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-02-22 01:32:38,109 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2021-02-22 01:32:38,109 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2021-02-22 01:32:38,110 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2021-02-22 01:32:38,110 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-02-22 01:32:38,110 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-02-22 01:32:38,111 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-02-22 01:32:38,111 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-02-22 01:32:38,111 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-02-22 01:32:38,112 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-02-22 01:32:38,112 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-02-22 01:32:38,113 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-02-22 01:32:38,613 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-02-22 01:32:38,614 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-02-22 01:32:38,616 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.02 01:32:38 BoogieIcfgContainer [2021-02-22 01:32:38,619 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-02-22 01:32:38,624 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-02-22 01:32:38,624 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-02-22 01:32:38,649 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-02-22 01:32:38,650 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.02 01:32:37" (1/3) ... [2021-02-22 01:32:38,651 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4bf9f61f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.02 01:32:38, skipping insertion in model container [2021-02-22 01:32:38,651 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 01:32:37" (2/3) ... [2021-02-22 01:32:38,651 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4bf9f61f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.02 01:32:38, skipping insertion in model container [2021-02-22 01:32:38,651 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.02 01:32:38" (3/3) ... [2021-02-22 01:32:38,655 INFO L111 eAbstractionObserver]: Analyzing ICFG signextension2-1.c [2021-02-22 01:32:38,671 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2021-02-22 01:32:38,675 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-02-22 01:32:38,694 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-02-22 01:32:38,719 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-02-22 01:32:38,719 INFO L377 AbstractCegarLoop]: Hoare is true [2021-02-22 01:32:38,720 INFO L378 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2021-02-22 01:32:38,720 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-02-22 01:32:38,720 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-02-22 01:32:38,720 INFO L381 AbstractCegarLoop]: Difference is false [2021-02-22 01:32:38,720 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-02-22 01:32:38,720 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-02-22 01:32:38,736 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states. [2021-02-22 01:32:38,745 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-02-22 01:32:38,746 INFO L414 BasicCegarLoop]: Found error trace [2021-02-22 01:32:38,747 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-22 01:32:38,747 INFO L428 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-22 01:32:38,753 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-22 01:32:38,753 INFO L82 PathProgramCache]: Analyzing trace with hash -1995346262, now seen corresponding path program 1 times [2021-02-22 01:32:38,763 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-22 01:32:38,763 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1338965494] [2021-02-22 01:32:38,764 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-22 01:32:38,844 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-22 01:32:38,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:32:39,196 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:32:39,197 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:32:39,225 WARN L141 QuantifierPusher]: treesize reduction 122, result has 43.8 percent of original size [2021-02-22 01:32:39,231 WARN L147 QuantifierPusher]: treesize reduction 122, result has 43.8 percent of original size 95 [2021-02-22 01:32:39,343 WARN L141 QuantifierPusher]: treesize reduction 190, result has 50.4 percent of original size [2021-02-22 01:32:39,352 WARN L147 QuantifierPusher]: treesize reduction 190, result has 50.4 percent of original size 193 [2021-02-22 01:32:39,475 WARN L141 QuantifierPusher]: treesize reduction 210, result has 54.6 percent of original size [2021-02-22 01:32:39,483 WARN L147 QuantifierPusher]: treesize reduction 210, result has 54.6 percent of original size 253 [2021-02-22 01:32:39,591 WARN L141 QuantifierPusher]: treesize reduction 208, result has 55.4 percent of original size [2021-02-22 01:32:39,599 WARN L147 QuantifierPusher]: treesize reduction 208, result has 55.4 percent of original size 258 [2021-02-22 01:32:39,729 WARN L141 QuantifierPusher]: treesize reduction 8, result has 89.0 percent of original size [2021-02-22 01:32:39,733 WARN L147 QuantifierPusher]: treesize reduction 8, result has 89.0 percent of original size 65 [2021-02-22 01:32:39,797 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:32:39,798 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:32:39,864 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-22 01:32:39,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:32:39,892 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:32:39,893 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:32:39,899 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-22 01:32:39,904 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1338965494] [2021-02-22 01:32:39,906 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-22 01:32:39,907 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-02-22 01:32:39,907 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [971239682] [2021-02-22 01:32:39,912 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-02-22 01:32:39,913 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-22 01:32:39,927 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-02-22 01:32:39,928 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2021-02-22 01:32:39,931 INFO L87 Difference]: Start difference. First operand 27 states. Second operand 8 states. [2021-02-22 01:32:40,328 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-22 01:32:40,329 INFO L93 Difference]: Finished difference Result 31 states and 30 transitions. [2021-02-22 01:32:40,330 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-02-22 01:32:40,331 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 19 [2021-02-22 01:32:40,332 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-22 01:32:40,339 INFO L225 Difference]: With dead ends: 31 [2021-02-22 01:32:40,339 INFO L226 Difference]: Without dead ends: 0 [2021-02-22 01:32:40,343 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=59, Invalid=97, Unknown=0, NotChecked=0, Total=156 [2021-02-22 01:32:40,362 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-02-22 01:32:40,368 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-02-22 01:32:40,370 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2021-02-22 01:32:40,370 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-02-22 01:32:40,372 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 19 [2021-02-22 01:32:40,372 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-22 01:32:40,372 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-02-22 01:32:40,372 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2021-02-22 01:32:40,373 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-02-22 01:32:40,373 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-02-22 01:32:40,373 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-02-22 01:32:40,375 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-02-22 01:32:40,802 INFO L189 CegarLoopUtils]: For program point reach_errorEXIT(line 3) no Hoare annotation was computed. [2021-02-22 01:32:40,802 INFO L189 CegarLoopUtils]: For program point reach_errorENTRY(line 3) no Hoare annotation was computed. [2021-02-22 01:32:40,803 INFO L189 CegarLoopUtils]: For program point reach_errorFINAL(line 3) no Hoare annotation was computed. [2021-02-22 01:32:40,803 INFO L192 CegarLoopUtils]: At program point L3-2(line 3) the Hoare annotation is: true [2021-02-22 01:32:40,803 INFO L192 CegarLoopUtils]: At program point L3-3(line 3) the Hoare annotation is: true [2021-02-22 01:32:40,803 INFO L192 CegarLoopUtils]: At program point L-1(line -1) the Hoare annotation is: true [2021-02-22 01:32:40,804 INFO L192 CegarLoopUtils]: At program point L3-4(line 3) the Hoare annotation is: true [2021-02-22 01:32:40,804 INFO L192 CegarLoopUtils]: At program point L-1-1(line -1) the Hoare annotation is: true [2021-02-22 01:32:40,804 INFO L192 CegarLoopUtils]: At program point ULTIMATE.initFINAL(line 3) the Hoare annotation is: true [2021-02-22 01:32:40,804 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|)) [2021-02-22 01:32:40,805 INFO L192 CegarLoopUtils]: At program point L3(line 3) the Hoare annotation is: true [2021-02-22 01:32:40,805 INFO L192 CegarLoopUtils]: At program point L3-1(line 3) the Hoare annotation is: true [2021-02-22 01:32:40,805 INFO L192 CegarLoopUtils]: At program point ULTIMATE.initEXIT(line -1) the Hoare annotation is: true [2021-02-22 01:32:40,805 INFO L192 CegarLoopUtils]: At program point ULTIMATE.startEXIT(line -1) the Hoare annotation is: true [2021-02-22 01:32:40,805 INFO L192 CegarLoopUtils]: At program point L-1(line -1) the Hoare annotation is: true [2021-02-22 01:32:40,806 INFO L192 CegarLoopUtils]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2021-02-22 01:32:40,806 INFO L192 CegarLoopUtils]: At program point ULTIMATE.startFINAL(line -1) the Hoare annotation is: true [2021-02-22 01:32:40,806 INFO L185 CegarLoopUtils]: At program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 19) the Hoare annotation is: false [2021-02-22 01:32:40,806 INFO L192 CegarLoopUtils]: At program point mainENTRY(lines 5 21) the Hoare annotation is: true [2021-02-22 01:32:40,807 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))) [2021-02-22 01:32:40,807 INFO L185 CegarLoopUtils]: At program point L20(line 20) the Hoare annotation is: false [2021-02-22 01:32:40,807 INFO L185 CegarLoopUtils]: At program point L19(line 19) the Hoare annotation is: false [2021-02-22 01:32:40,808 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))) [2021-02-22 01:32:40,808 INFO L185 CegarLoopUtils]: At program point L15(lines 5 21) the Hoare annotation is: false [2021-02-22 01:32:40,808 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))) [2021-02-22 01:32:40,809 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))) [2021-02-22 01:32:40,809 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))) [2021-02-22 01:32:40,809 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))) [2021-02-22 01:32:40,810 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)) [2021-02-22 01:32:40,810 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)) [2021-02-22 01:32:40,831 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.02 01:32:40 BoogieIcfgContainer [2021-02-22 01:32:40,832 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-02-22 01:32:40,834 INFO L168 Benchmark]: Toolchain (without parser) took 3171.92 ms. Allocated memory was 151.0 MB in the beginning and 190.8 MB in the end (delta: 39.8 MB). Free memory was 127.6 MB in the beginning and 150.0 MB in the end (delta: -22.4 MB). Peak memory consumption was 80.2 MB. Max. memory is 8.0 GB. [2021-02-22 01:32:40,835 INFO L168 Benchmark]: CDTParser took 0.27 ms. Allocated memory is still 151.0 MB. Free memory is still 124.7 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-02-22 01:32:40,836 INFO L168 Benchmark]: CACSL2BoogieTranslator took 251.97 ms. Allocated memory is still 151.0 MB. Free memory was 126.5 MB in the beginning and 116.7 MB in the end (delta: 9.7 MB). Peak memory consumption was 10.5 MB. Max. memory is 8.0 GB. [2021-02-22 01:32:40,837 INFO L168 Benchmark]: Boogie Preprocessor took 61.56 ms. Allocated memory is still 151.0 MB. Free memory was 116.7 MB in the beginning and 115.4 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2021-02-22 01:32:40,838 INFO L168 Benchmark]: RCFGBuilder took 627.48 ms. Allocated memory is still 151.0 MB. Free memory was 115.3 MB in the beginning and 134.3 MB in the end (delta: -18.9 MB). Peak memory consumption was 16.3 MB. Max. memory is 8.0 GB. [2021-02-22 01:32:40,839 INFO L168 Benchmark]: TraceAbstraction took 2207.52 ms. Allocated memory was 151.0 MB in the beginning and 190.8 MB in the end (delta: 39.8 MB). Free memory was 133.6 MB in the beginning and 150.0 MB in the end (delta: -16.4 MB). Peak memory consumption was 84.9 MB. Max. memory is 8.0 GB. [2021-02-22 01:32:40,843 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27 ms. Allocated memory is still 151.0 MB. Free memory is still 124.7 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 251.97 ms. Allocated memory is still 151.0 MB. Free memory was 126.5 MB in the beginning and 116.7 MB in the end (delta: 9.7 MB). Peak memory consumption was 10.5 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 61.56 ms. Allocated memory is still 151.0 MB. Free memory was 116.7 MB in the beginning and 115.4 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 627.48 ms. Allocated memory is still 151.0 MB. Free memory was 115.3 MB in the beginning and 134.3 MB in the end (delta: -18.9 MB). Peak memory consumption was 16.3 MB. Max. memory is 8.0 GB. * TraceAbstraction took 2207.52 ms. Allocated memory was 151.0 MB in the beginning and 190.8 MB in the end (delta: 39.8 MB). Free memory was 133.6 MB in the beginning and 150.0 MB in the end (delta: -16.4 MB). Peak memory consumption was 84.9 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: 1.6s, OverallIterations: 1, TraceHistogramMax: 1, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.4s, 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, 0.8s 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, 0.0s 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...