/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/acceleratedInterpolationFastUPR_32.epf -i ../../../trunk/examples/svcomp/ldv-regression/test_address.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-36cd7be [2021-02-23 18:07:08,377 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-02-23 18:07:08,383 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-02-23 18:07:08,462 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-02-23 18:07:08,503 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-02-23 18:07:08,506 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-02-23 18:07:08,509 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-02-23 18:07:08,512 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-02-23 18:07:08,518 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-02-23 18:07:08,520 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-02-23 18:07:08,531 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-02-23 18:07:08,541 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-02-23 18:07:08,544 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-02-23 18:07:08,546 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-02-23 18:07:08,548 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-02-23 18:07:08,552 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-02-23 18:07:08,577 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-02-23 18:07:08,593 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-02-23 18:07:08,594 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-02-23 18:07:08,595 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-02-23 18:07:08,596 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 18:07:08,615 INFO L113 SettingsManager]: Loading preferences was successful [2021-02-23 18:07:08,616 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-02-23 18:07:08,618 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-02-23 18:07:08,619 INFO L138 SettingsManager]: * sizeof long=4 [2021-02-23 18:07:08,619 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-02-23 18:07:08,619 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-02-23 18:07:08,619 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-02-23 18:07:08,620 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-02-23 18:07:08,620 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-02-23 18:07:08,620 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-02-23 18:07:08,620 INFO L138 SettingsManager]: * sizeof long double=12 [2021-02-23 18:07:08,620 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-02-23 18:07:08,621 INFO L138 SettingsManager]: * Use constant arrays=true [2021-02-23 18:07:08,621 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-02-23 18:07:08,621 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-02-23 18:07:08,622 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2021-02-23 18:07:08,622 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-02-23 18:07:08,622 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-02-23 18:07:08,622 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-02-23 18:07:08,623 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-02-23 18:07:08,623 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2021-02-23 18:07:08,623 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-02-23 18:07:08,623 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-02-23 18:07:09,163 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-02-23 18:07:09,198 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-02-23 18:07:09,203 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-02-23 18:07:09,205 INFO L271 PluginConnector]: Initializing CDTParser... [2021-02-23 18:07:09,206 INFO L275 PluginConnector]: CDTParser initialized [2021-02-23 18:07:09,207 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-regression/test_address.c [2021-02-23 18:07:09,311 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/acf688d98/79b483ba1a51410daf052ce746f7eece/FLAGe9808c453 [2021-02-23 18:07:10,148 INFO L306 CDTParser]: Found 1 translation units. [2021-02-23 18:07:10,149 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-regression/test_address.c [2021-02-23 18:07:10,157 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/acf688d98/79b483ba1a51410daf052ce746f7eece/FLAGe9808c453 [2021-02-23 18:07:10,517 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/acf688d98/79b483ba1a51410daf052ce746f7eece [2021-02-23 18:07:10,521 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-02-23 18:07:10,532 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-02-23 18:07:10,539 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-02-23 18:07:10,539 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-02-23 18:07:10,545 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-02-23 18:07:10,546 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.02 06:07:10" (1/1) ... [2021-02-23 18:07:10,548 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4ba76cc9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 06:07:10, skipping insertion in model container [2021-02-23 18:07:10,549 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.02 06:07:10" (1/1) ... [2021-02-23 18:07:10,559 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-02-23 18:07:10,578 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-02-23 18:07:10,752 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/test_address.c[293,306] [2021-02-23 18:07:10,777 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-23 18:07:10,793 INFO L203 MainTranslator]: Completed pre-run [2021-02-23 18:07:10,811 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/test_address.c[293,306] [2021-02-23 18:07:10,815 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-23 18:07:10,838 INFO L208 MainTranslator]: Completed translation [2021-02-23 18:07:10,839 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 06:07:10 WrapperNode [2021-02-23 18:07:10,839 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-02-23 18:07:10,841 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-02-23 18:07:10,841 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-02-23 18:07:10,841 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-02-23 18:07:10,860 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 06:07:10" (1/1) ... [2021-02-23 18:07:10,861 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 06:07:10" (1/1) ... [2021-02-23 18:07:10,872 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 06:07:10" (1/1) ... [2021-02-23 18:07:10,872 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 06:07:10" (1/1) ... [2021-02-23 18:07:10,881 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 06:07:10" (1/1) ... [2021-02-23 18:07:10,884 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 06:07:10" (1/1) ... [2021-02-23 18:07:10,886 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 06:07:10" (1/1) ... [2021-02-23 18:07:10,889 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-02-23 18:07:10,891 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-02-23 18:07:10,891 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-02-23 18:07:10,891 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-02-23 18:07:10,892 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 06:07:10" (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 18:07:11,030 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-02-23 18:07:11,030 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-02-23 18:07:11,031 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2021-02-23 18:07:11,031 INFO L138 BoogieDeclarations]: Found implementation of procedure __blast_assert [2021-02-23 18:07:11,031 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add [2021-02-23 18:07:11,032 INFO L138 BoogieDeclarations]: Found implementation of procedure rr_fail_path [2021-02-23 18:07:11,032 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-02-23 18:07:11,032 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2021-02-23 18:07:11,032 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2021-02-23 18:07:11,032 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2021-02-23 18:07:11,032 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-02-23 18:07:11,033 INFO L130 BoogieDeclarations]: Found specification of procedure __blast_assert [2021-02-23 18:07:11,033 INFO L130 BoogieDeclarations]: Found specification of procedure list_add [2021-02-23 18:07:11,033 INFO L130 BoogieDeclarations]: Found specification of procedure rr_fail_path [2021-02-23 18:07:11,033 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-02-23 18:07:11,033 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-02-23 18:07:11,033 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-02-23 18:07:11,034 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-02-23 18:07:11,034 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-02-23 18:07:11,034 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-02-23 18:07:11,034 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-02-23 18:07:11,361 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-02-23 18:07:11,362 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-02-23 18:07:11,365 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.02 06:07:11 BoogieIcfgContainer [2021-02-23 18:07:11,365 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-02-23 18:07:11,368 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-02-23 18:07:11,368 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-02-23 18:07:11,397 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-02-23 18:07:11,398 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.02 06:07:10" (1/3) ... [2021-02-23 18:07:11,399 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@209d612e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.02 06:07:11, skipping insertion in model container [2021-02-23 18:07:11,400 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 06:07:10" (2/3) ... [2021-02-23 18:07:11,400 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@209d612e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.02 06:07:11, skipping insertion in model container [2021-02-23 18:07:11,401 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.02 06:07:11" (3/3) ... [2021-02-23 18:07:11,406 INFO L111 eAbstractionObserver]: Analyzing ICFG test_address.c [2021-02-23 18:07:11,448 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2021-02-23 18:07:11,491 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-02-23 18:07:11,521 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-02-23 18:07:11,555 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-02-23 18:07:11,555 INFO L377 AbstractCegarLoop]: Hoare is true [2021-02-23 18:07:11,556 INFO L378 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2021-02-23 18:07:11,556 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-02-23 18:07:11,556 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-02-23 18:07:11,556 INFO L381 AbstractCegarLoop]: Difference is false [2021-02-23 18:07:11,556 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-02-23 18:07:11,556 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-02-23 18:07:11,577 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states. [2021-02-23 18:07:11,588 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2021-02-23 18:07:11,588 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 18:07:11,589 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] [2021-02-23 18:07:11,590 INFO L428 AbstractCegarLoop]: === Iteration 1 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 18:07:11,599 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 18:07:11,600 INFO L82 PathProgramCache]: Analyzing trace with hash 1001076438, now seen corresponding path program 1 times [2021-02-23 18:07:11,612 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-23 18:07:11,613 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2010494445] [2021-02-23 18:07:11,613 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 18:07:11,710 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-23 18:07:11,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:07:12,003 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:07:12,005 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:07:12,008 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:07:12,010 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-23 18:07:12,032 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:07:12,034 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-23 18:07:12,042 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:07:12,044 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-23 18:07:12,054 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:07:12,055 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-23 18:07:12,066 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:07:12,067 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-23 18:07:12,080 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:07:12,081 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:07:12,127 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 18:07:12,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:07:12,153 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:07:12,154 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:07:12,162 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 18:07:12,164 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2010494445] [2021-02-23 18:07:12,167 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-23 18:07:12,168 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-02-23 18:07:12,169 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2005936930] [2021-02-23 18:07:12,175 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-02-23 18:07:12,176 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-23 18:07:12,194 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-02-23 18:07:12,195 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-02-23 18:07:12,199 INFO L87 Difference]: Start difference. First operand 34 states. Second operand 8 states. [2021-02-23 18:07:12,492 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 18:07:12,493 INFO L93 Difference]: Finished difference Result 44 states and 43 transitions. [2021-02-23 18:07:12,493 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-02-23 18:07:12,495 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 20 [2021-02-23 18:07:12,496 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 18:07:12,506 INFO L225 Difference]: With dead ends: 44 [2021-02-23 18:07:12,506 INFO L226 Difference]: Without dead ends: 0 [2021-02-23 18:07:12,512 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=33, Invalid=99, Unknown=0, NotChecked=0, Total=132 [2021-02-23 18:07:12,537 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-02-23 18:07:12,545 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-02-23 18:07:12,547 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2021-02-23 18:07:12,548 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-02-23 18:07:12,550 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 20 [2021-02-23 18:07:12,550 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 18:07:12,550 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-02-23 18:07:12,551 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2021-02-23 18:07:12,551 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-02-23 18:07:12,551 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-02-23 18:07:12,551 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-02-23 18:07:12,554 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-02-23 18:07:13,013 INFO L189 CegarLoopUtils]: For program point reach_errorEXIT(line 3) no Hoare annotation was computed. [2021-02-23 18:07:13,014 INFO L189 CegarLoopUtils]: For program point reach_errorENTRY(line 3) no Hoare annotation was computed. [2021-02-23 18:07:13,014 INFO L189 CegarLoopUtils]: For program point reach_errorFINAL(line 3) no Hoare annotation was computed. [2021-02-23 18:07:13,014 INFO L192 CegarLoopUtils]: At program point L3-2(line 3) the Hoare annotation is: true [2021-02-23 18:07:13,014 INFO L192 CegarLoopUtils]: At program point L3-3(line 3) the Hoare annotation is: true [2021-02-23 18:07:13,014 INFO L192 CegarLoopUtils]: At program point L-1(line -1) the Hoare annotation is: true [2021-02-23 18:07:13,015 INFO L192 CegarLoopUtils]: At program point L3-4(line 3) the Hoare annotation is: true [2021-02-23 18:07:13,015 INFO L192 CegarLoopUtils]: At program point L-1-1(line -1) the Hoare annotation is: true [2021-02-23 18:07:13,015 INFO L192 CegarLoopUtils]: At program point ULTIMATE.initFINAL(line 3) the Hoare annotation is: true [2021-02-23 18:07:13,015 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|)) [2021-02-23 18:07:13,015 INFO L192 CegarLoopUtils]: At program point L3(line 3) the Hoare annotation is: true [2021-02-23 18:07:13,016 INFO L192 CegarLoopUtils]: At program point L3-1(line 3) the Hoare annotation is: true [2021-02-23 18:07:13,016 INFO L192 CegarLoopUtils]: At program point ULTIMATE.initEXIT(line -1) the Hoare annotation is: true [2021-02-23 18:07:13,016 INFO L185 CegarLoopUtils]: At program point rr_fail_pathFINAL(lines 18 21) the Hoare annotation is: (or (not (= rr_fail_path_~pi.base 0)) (= |rr_fail_path_#in~pi.base| 0)) [2021-02-23 18:07:13,016 INFO L192 CegarLoopUtils]: At program point rr_fail_pathENTRY(lines 18 21) the Hoare annotation is: true [2021-02-23 18:07:13,016 INFO L185 CegarLoopUtils]: At program point L20(line 20) the Hoare annotation is: (or (not (= rr_fail_path_~pi.base 0)) (= |rr_fail_path_#in~pi.base| 0)) [2021-02-23 18:07:13,017 INFO L185 CegarLoopUtils]: At program point rr_fail_pathEXIT(lines 18 21) the Hoare annotation is: (or (not (= rr_fail_path_~pi.base 0)) (= |rr_fail_path_#in~pi.base| 0)) [2021-02-23 18:07:13,017 INFO L192 CegarLoopUtils]: At program point __blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 7) the Hoare annotation is: true [2021-02-23 18:07:13,017 INFO L192 CegarLoopUtils]: At program point __blast_assertEXIT(lines 5 8) the Hoare annotation is: true [2021-02-23 18:07:13,017 INFO L192 CegarLoopUtils]: At program point L7(line 7) the Hoare annotation is: true [2021-02-23 18:07:13,018 INFO L192 CegarLoopUtils]: At program point __blast_assertFINAL(lines 5 8) the Hoare annotation is: true [2021-02-23 18:07:13,018 INFO L192 CegarLoopUtils]: At program point __blast_assertENTRY(lines 5 8) the Hoare annotation is: true [2021-02-23 18:07:13,018 INFO L192 CegarLoopUtils]: At program point list_addENTRY(lines 14 16) the Hoare annotation is: true [2021-02-23 18:07:13,018 INFO L185 CegarLoopUtils]: At program point L15(line 15) the Hoare annotation is: (or (= |list_add_#in~new.base| 0) (not (= list_add_~new.base 0))) [2021-02-23 18:07:13,018 INFO L185 CegarLoopUtils]: At program point L15-2(line 15) the Hoare annotation is: (= |list_add_#in~new.base| 0) [2021-02-23 18:07:13,019 INFO L185 CegarLoopUtils]: At program point L15-3(lines 14 16) the Hoare annotation is: (or (= |list_add_#in~new.base| 0) (not (= list_add_~new.base 0))) [2021-02-23 18:07:13,019 INFO L185 CegarLoopUtils]: At program point list_addEXIT(lines 14 16) the Hoare annotation is: (or (= |list_add_#in~new.base| 0) (not (= list_add_~new.base 0))) [2021-02-23 18:07:13,019 INFO L192 CegarLoopUtils]: At program point ULTIMATE.startEXIT(line -1) the Hoare annotation is: true [2021-02-23 18:07:13,019 INFO L192 CegarLoopUtils]: At program point L-1(line -1) the Hoare annotation is: true [2021-02-23 18:07:13,019 INFO L192 CegarLoopUtils]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2021-02-23 18:07:13,020 INFO L192 CegarLoopUtils]: At program point ULTIMATE.startFINAL(line -1) the Hoare annotation is: true [2021-02-23 18:07:13,020 INFO L185 CegarLoopUtils]: At program point mainENTRY(lines 23 26) the Hoare annotation is: (and (= |old(#length)| |#length|) (= |old(#valid)| |#valid|)) [2021-02-23 18:07:13,020 INFO L192 CegarLoopUtils]: At program point mainFINAL(lines 23 26) the Hoare annotation is: true [2021-02-23 18:07:13,020 INFO L185 CegarLoopUtils]: At program point L25(line 25) the Hoare annotation is: (not (= |main_~#pi~0.base| 0)) [2021-02-23 18:07:13,020 INFO L192 CegarLoopUtils]: At program point mainEXIT(lines 23 26) the Hoare annotation is: true [2021-02-23 18:07:13,021 INFO L185 CegarLoopUtils]: At program point L24(line 24) the Hoare annotation is: (not (= |main_~#pi~0.base| 0)) [2021-02-23 18:07:13,021 INFO L185 CegarLoopUtils]: At program point L24-1(line 24) the Hoare annotation is: (not (= |main_~#pi~0.base| 0)) [2021-02-23 18:07:13,046 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.02 06:07:13 BoogieIcfgContainer [2021-02-23 18:07:13,046 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-02-23 18:07:13,049 INFO L168 Benchmark]: Toolchain (without parser) took 2525.36 ms. Allocated memory is still 151.0 MB. Free memory was 127.3 MB in the beginning and 89.5 MB in the end (delta: 37.9 MB). Peak memory consumption was 58.9 MB. Max. memory is 8.0 GB. [2021-02-23 18:07:13,050 INFO L168 Benchmark]: CDTParser took 0.44 ms. Allocated memory is still 151.0 MB. Free memory is still 126.5 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-02-23 18:07:13,051 INFO L168 Benchmark]: CACSL2BoogieTranslator took 300.54 ms. Allocated memory is still 151.0 MB. Free memory was 126.2 MB in the beginning and 117.1 MB in the end (delta: 9.1 MB). Peak memory consumption was 9.4 MB. Max. memory is 8.0 GB. [2021-02-23 18:07:13,052 INFO L168 Benchmark]: Boogie Preprocessor took 48.79 ms. Allocated memory is still 151.0 MB. Free memory was 117.1 MB in the beginning and 115.6 MB in the end (delta: 1.5 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2021-02-23 18:07:13,053 INFO L168 Benchmark]: RCFGBuilder took 475.08 ms. Allocated memory is still 151.0 MB. Free memory was 115.6 MB in the beginning and 102.4 MB in the end (delta: 13.2 MB). Peak memory consumption was 13.6 MB. Max. memory is 8.0 GB. [2021-02-23 18:07:13,054 INFO L168 Benchmark]: TraceAbstraction took 1678.69 ms. Allocated memory is still 151.0 MB. Free memory was 102.0 MB in the beginning and 89.5 MB in the end (delta: 12.5 MB). Peak memory consumption was 33.7 MB. Max. memory is 8.0 GB. [2021-02-23 18:07:13,058 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.44 ms. Allocated memory is still 151.0 MB. Free memory is still 126.5 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 300.54 ms. Allocated memory is still 151.0 MB. Free memory was 126.2 MB in the beginning and 117.1 MB in the end (delta: 9.1 MB). Peak memory consumption was 9.4 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 48.79 ms. Allocated memory is still 151.0 MB. Free memory was 117.1 MB in the beginning and 115.6 MB in the end (delta: 1.5 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 475.08 ms. Allocated memory is still 151.0 MB. Free memory was 115.6 MB in the beginning and 102.4 MB in the end (delta: 13.2 MB). Peak memory consumption was 13.6 MB. Max. memory is 8.0 GB. * TraceAbstraction took 1678.69 ms. Allocated memory is still 151.0 MB. Free memory was 102.0 MB in the beginning and 89.5 MB in the end (delta: 12.5 MB). Peak memory consumption was 33.7 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 7]: 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: 18]: Procedure Contract for rr_fail_path Derived contract for procedure rr_fail_path: !(pi == 0) || pi == 0 - ProcedureContractResult [Line: 5]: Procedure Contract for __blast_assert Derived contract for procedure __blast_assert: 1 - ProcedureContractResult [Line: 14]: Procedure Contract for list_add Derived contract for procedure list_add: new == 0 || !(new == 0) - ProcedureContractResult [Line: 23]: Procedure Contract for main Derived contract for procedure main: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 7 procedures, 37 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 1.0s, OverallIterations: 1, TraceHistogramMax: 1, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.4s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 20 SDtfs, 14 SDslu, 92 SDs, 0 SdLazy, 50 SolverSat, 6 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=34occurred 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, 34 LocationsWithAnnotation, 34 PreInvPairs, 44 NumberOfFragments, 123 HoareAnnotationTreeSize, 34 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.1s HoareSimplificationTime, 34 FomulaSimplificationsInter, 310 FormulaSimplificationTreeSizeReductionInter, 0.2s 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...