/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/test14.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-b8ad66e [2020-10-23 20:34:56,648 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-23 20:34:56,652 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-23 20:34:56,706 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2020-10-23 20:34:56,735 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-23 20:34:56,738 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-23 20:34:56,740 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-23 20:34:56,742 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-23 20:34:56,743 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-23 20:34:56,746 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-23 20:34:56,776 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-23 20:34:56,785 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-23 20:34:56,790 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-23 20:34:56,800 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-23 20:34:56,802 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-23 20:34:56,805 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-23 20:34:56,820 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-10-23 20:34:56,836 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2020-10-23 20:34:56,860 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-23 20:34:56,860 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-23 20:34:56,865 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-23 20:34:56,866 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-23 20:34:56,866 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-23 20:34:56,866 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-23 20:34:56,866 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-23 20:34:56,866 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-23 20:34:56,866 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-23 20:34:56,867 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-23 20:34:56,867 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-23 20:34:56,867 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-23 20:34:56,867 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-23 20:34:56,867 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-23 20:34:56,867 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-23 20:34:56,868 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-10-23 20:34:56,868 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-23 20:34:56,868 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-23 20:34:56,868 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-23 20:34:56,870 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-23 20:34:56,870 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-10-23 20:34:56,870 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-23 20:34:56,871 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-10-23 20:34:57,231 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-23 20:34:57,281 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-23 20:34:57,285 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-23 20:34:57,287 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-23 20:34:57,287 INFO L275 PluginConnector]: CDTParser initialized [2020-10-23 20:34:57,288 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-regression/test14.c [2020-10-23 20:34:57,368 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/15692167a/09a42623c9cc4a6386741c51de70e7dc/FLAG3479eceba [2020-10-23 20:34:57,928 INFO L306 CDTParser]: Found 1 translation units. [2020-10-23 20:34:57,929 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-regression/test14.c [2020-10-23 20:34:57,937 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/15692167a/09a42623c9cc4a6386741c51de70e7dc/FLAG3479eceba [2020-10-23 20:34:58,281 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/15692167a/09a42623c9cc4a6386741c51de70e7dc [2020-10-23 20:34:58,287 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-23 20:34:58,294 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-23 20:34:58,295 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-23 20:34:58,296 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-23 20:34:58,300 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-23 20:34:58,301 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.10 08:34:58" (1/1) ... [2020-10-23 20:34:58,310 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@297f1cf5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:34:58, skipping insertion in model container [2020-10-23 20:34:58,311 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.10 08:34:58" (1/1) ... [2020-10-23 20:34:58,320 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-23 20:34:58,361 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-23 20:34:58,550 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-23 20:34:58,561 INFO L203 MainTranslator]: Completed pre-run [2020-10-23 20:34:58,579 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-23 20:34:58,595 INFO L208 MainTranslator]: Completed translation [2020-10-23 20:34:58,596 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:34:58 WrapperNode [2020-10-23 20:34:58,596 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-23 20:34:58,597 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-23 20:34:58,597 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-23 20:34:58,598 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-23 20:34:58,610 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:34:58" (1/1) ... [2020-10-23 20:34:58,610 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:34:58" (1/1) ... [2020-10-23 20:34:58,618 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:34:58" (1/1) ... [2020-10-23 20:34:58,619 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:34:58" (1/1) ... [2020-10-23 20:34:58,625 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:34:58" (1/1) ... [2020-10-23 20:34:58,628 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:34:58" (1/1) ... [2020-10-23 20:34:58,629 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:34:58" (1/1) ... [2020-10-23 20:34:58,631 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-23 20:34:58,632 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-23 20:34:58,633 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-23 20:34:58,633 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-23 20:34:58,634 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:34:58" (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 [2020-10-23 20:34:58,754 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-23 20:34:58,755 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-23 20:34:58,755 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-23 20:34:58,755 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dummy [2020-10-23 20:34:58,755 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-23 20:34:58,755 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-23 20:34:58,756 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-23 20:34:58,756 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-23 20:34:58,756 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-23 20:34:58,756 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-23 20:34:58,756 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2020-10-23 20:34:58,756 INFO L130 BoogieDeclarations]: Found specification of procedure get_dummy [2020-10-23 20:34:58,757 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-23 20:34:58,757 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-23 20:34:58,757 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-23 20:34:58,757 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-23 20:34:58,757 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-23 20:34:58,758 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-23 20:34:58,758 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-23 20:34:59,160 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-23 20:34:59,161 INFO L298 CfgBuilder]: Removed 0 assume(true) statements. [2020-10-23 20:34:59,163 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.10 08:34:59 BoogieIcfgContainer [2020-10-23 20:34:59,163 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-23 20:34:59,165 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-23 20:34:59,165 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-23 20:34:59,169 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-23 20:34:59,169 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.10 08:34:58" (1/3) ... [2020-10-23 20:34:59,170 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@45815a1e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.10 08:34:59, skipping insertion in model container [2020-10-23 20:34:59,170 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:34:58" (2/3) ... [2020-10-23 20:34:59,171 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@45815a1e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.10 08:34:59, skipping insertion in model container [2020-10-23 20:34:59,171 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.10 08:34:59" (3/3) ... [2020-10-23 20:34:59,172 INFO L111 eAbstractionObserver]: Analyzing ICFG test14.c [2020-10-23 20:34:59,185 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-23 20:34:59,195 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-23 20:34:59,231 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-23 20:34:59,286 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-23 20:34:59,286 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-23 20:34:59,286 INFO L379 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2020-10-23 20:34:59,286 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-23 20:34:59,287 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-23 20:34:59,287 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-23 20:34:59,292 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-23 20:34:59,292 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-23 20:34:59,325 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states. [2020-10-23 20:34:59,340 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2020-10-23 20:34:59,341 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 20:34:59,342 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-23 20:34:59,342 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 20:34:59,358 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 20:34:59,359 INFO L82 PathProgramCache]: Analyzing trace with hash -1318884326, now seen corresponding path program 1 times [2020-10-23 20:34:59,369 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 20:34:59,369 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1667623218] [2020-10-23 20:34:59,370 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 20:34:59,464 INFO L321 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-10-23 20:34:59,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:34:59,868 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 20:34:59,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:34:59,890 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-10-23 20:34:59,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:34:59,950 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-23 20:34:59,953 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1667623218] [2020-10-23 20:34:59,958 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 20:34:59,958 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-23 20:34:59,959 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1865987725] [2020-10-23 20:34:59,985 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-23 20:34:59,986 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 20:35:00,000 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-23 20:35:00,001 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-10-23 20:35:00,003 INFO L87 Difference]: Start difference. First operand 74 states. Second operand 6 states. [2020-10-23 20:35:00,286 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 20:35:00,286 INFO L93 Difference]: Finished difference Result 93 states and 97 transitions. [2020-10-23 20:35:00,287 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-23 20:35:00,288 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 49 [2020-10-23 20:35:00,289 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 20:35:00,297 INFO L225 Difference]: With dead ends: 93 [2020-10-23 20:35:00,297 INFO L226 Difference]: Without dead ends: 57 [2020-10-23 20:35:00,301 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2020-10-23 20:35:00,318 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57 states. [2020-10-23 20:35:00,349 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 57. [2020-10-23 20:35:00,350 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 57 states. [2020-10-23 20:35:00,352 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 58 transitions. [2020-10-23 20:35:00,354 INFO L78 Accepts]: Start accepts. Automaton has 57 states and 58 transitions. Word has length 49 [2020-10-23 20:35:00,355 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 20:35:00,355 INFO L481 AbstractCegarLoop]: Abstraction has 57 states and 58 transitions. [2020-10-23 20:35:00,355 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-23 20:35:00,355 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 58 transitions. [2020-10-23 20:35:00,357 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2020-10-23 20:35:00,357 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 20:35:00,358 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-23 20:35:00,358 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-23 20:35:00,358 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 20:35:00,359 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 20:35:00,359 INFO L82 PathProgramCache]: Analyzing trace with hash -1960927892, now seen corresponding path program 1 times [2020-10-23 20:35:00,359 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 20:35:00,360 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [369756815] [2020-10-23 20:35:00,360 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 20:35:00,364 INFO L321 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-10-23 20:35:00,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:35:00,533 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 20:35:00,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:35:00,563 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-10-23 20:35:00,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:35:00,584 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-23 20:35:00,587 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [369756815] [2020-10-23 20:35:00,588 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 20:35:00,588 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-23 20:35:00,588 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [13344900] [2020-10-23 20:35:00,589 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-23 20:35:00,590 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 20:35:00,595 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-23 20:35:00,595 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-23 20:35:00,595 INFO L87 Difference]: Start difference. First operand 57 states and 58 transitions. Second operand 5 states. [2020-10-23 20:35:00,775 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 20:35:00,776 INFO L93 Difference]: Finished difference Result 66 states and 66 transitions. [2020-10-23 20:35:00,777 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-23 20:35:00,777 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 52 [2020-10-23 20:35:00,778 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 20:35:00,781 INFO L225 Difference]: With dead ends: 66 [2020-10-23 20:35:00,781 INFO L226 Difference]: Without dead ends: 57 [2020-10-23 20:35:00,784 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-23 20:35:00,785 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57 states. [2020-10-23 20:35:00,809 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 57. [2020-10-23 20:35:00,809 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 57 states. [2020-10-23 20:35:00,811 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 57 transitions. [2020-10-23 20:35:00,811 INFO L78 Accepts]: Start accepts. Automaton has 57 states and 57 transitions. Word has length 52 [2020-10-23 20:35:00,811 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 20:35:00,812 INFO L481 AbstractCegarLoop]: Abstraction has 57 states and 57 transitions. [2020-10-23 20:35:00,812 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-23 20:35:00,812 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 57 transitions. [2020-10-23 20:35:00,816 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2020-10-23 20:35:00,817 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 20:35:00,817 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-23 20:35:00,818 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-23 20:35:00,819 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 20:35:00,819 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 20:35:00,820 INFO L82 PathProgramCache]: Analyzing trace with hash -113796720, now seen corresponding path program 1 times [2020-10-23 20:35:00,820 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 20:35:00,821 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1833591163] [2020-10-23 20:35:00,822 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 20:35:00,829 INFO L321 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-10-23 20:35:00,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:35:00,978 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 20:35:00,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:35:00,989 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-10-23 20:35:00,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:35:00,999 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-23 20:35:01,000 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1833591163] [2020-10-23 20:35:01,000 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 20:35:01,000 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-23 20:35:01,001 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1368134910] [2020-10-23 20:35:01,001 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-23 20:35:01,001 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 20:35:01,002 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-23 20:35:01,002 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2020-10-23 20:35:01,003 INFO L87 Difference]: Start difference. First operand 57 states and 57 transitions. Second operand 8 states. [2020-10-23 20:35:01,197 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 20:35:01,197 INFO L93 Difference]: Finished difference Result 57 states and 57 transitions. [2020-10-23 20:35:01,197 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-23 20:35:01,198 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 55 [2020-10-23 20:35:01,198 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 20:35:01,198 INFO L225 Difference]: With dead ends: 57 [2020-10-23 20:35:01,199 INFO L226 Difference]: Without dead ends: 0 [2020-10-23 20:35:01,200 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2020-10-23 20:35:01,200 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-23 20:35:01,200 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-23 20:35:01,200 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-23 20:35:01,200 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-23 20:35:01,201 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 55 [2020-10-23 20:35:01,201 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 20:35:01,201 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-23 20:35:01,201 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-23 20:35:01,201 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-23 20:35:01,201 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-23 20:35:01,202 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-23 20:35:01,204 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-10-23 20:35:01,617 INFO L277 CegarLoopResult]: At program point reach_errorEXIT(line 3) the Hoare annotation is: true [2020-10-23 20:35:01,618 INFO L277 CegarLoopResult]: At program point reach_errorENTRY(line 3) the Hoare annotation is: true [2020-10-23 20:35:01,618 INFO L277 CegarLoopResult]: At program point reach_errorFINAL(line 3) the Hoare annotation is: true [2020-10-23 20:35:01,618 INFO L277 CegarLoopResult]: At program point reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION(line 3) the Hoare annotation is: true [2020-10-23 20:35:01,618 INFO L277 CegarLoopResult]: At program point L3-2(line 3) the Hoare annotation is: true [2020-10-23 20:35:01,618 INFO L277 CegarLoopResult]: At program point L3-3(line 3) the Hoare annotation is: true [2020-10-23 20:35:01,618 INFO L277 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true [2020-10-23 20:35:01,618 INFO L277 CegarLoopResult]: At program point L3-4(line 3) the Hoare annotation is: true [2020-10-23 20:35:01,619 INFO L277 CegarLoopResult]: At program point L-1-1(line -1) the Hoare annotation is: true [2020-10-23 20:35:01,619 INFO L277 CegarLoopResult]: At program point L3-5(line 3) the Hoare annotation is: true [2020-10-23 20:35:01,619 INFO L277 CegarLoopResult]: At program point ULTIMATE.initFINAL(line 7) the Hoare annotation is: true [2020-10-23 20:35:01,619 INFO L270 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= |#t~string5.offset| |old(#t~string5.offset)|) (= |old(#length)| |#length|) (= |#t~string6.base| |old(#t~string6.base)|) (= |#t~string6.offset| |old(#t~string6.offset)|) (= |~#a~0.offset| |old(~#a~0.offset)|) (= |~#b~0.base| |old(~#b~0.base)|) (= |~#a~0.base| |old(~#a~0.base)|) (= |#t~string4.offset| |old(#t~string4.offset)|) (= |old(#valid)| |#valid|) (= |#t~string5.base| |old(#t~string5.base)|) (= |~#b~0.offset| |old(~#b~0.offset)|) (= |#t~string4.base| |old(#t~string4.base)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|)) [2020-10-23 20:35:01,620 INFO L277 CegarLoopResult]: At program point L7(line 7) the Hoare annotation is: true [2020-10-23 20:35:01,620 INFO L277 CegarLoopResult]: At program point L7-1(line 7) the Hoare annotation is: true [2020-10-23 20:35:01,620 INFO L277 CegarLoopResult]: At program point L7-2(line 7) the Hoare annotation is: true [2020-10-23 20:35:01,620 INFO L277 CegarLoopResult]: At program point L3(line 3) the Hoare annotation is: true [2020-10-23 20:35:01,620 INFO L277 CegarLoopResult]: At program point L3-1(line 3) the Hoare annotation is: true [2020-10-23 20:35:01,620 INFO L277 CegarLoopResult]: At program point ULTIMATE.initEXIT(line -1) the Hoare annotation is: true [2020-10-23 20:35:01,620 INFO L277 CegarLoopResult]: At program point get_dummyFINAL(lines 9 12) the Hoare annotation is: true [2020-10-23 20:35:01,621 INFO L277 CegarLoopResult]: At program point L11(line 11) the Hoare annotation is: true [2020-10-23 20:35:01,621 INFO L277 CegarLoopResult]: At program point L11-2(line 11) the Hoare annotation is: true [2020-10-23 20:35:01,621 INFO L277 CegarLoopResult]: At program point L11-3(line 11) the Hoare annotation is: true [2020-10-23 20:35:01,621 INFO L277 CegarLoopResult]: At program point get_dummyENTRY(lines 9 12) the Hoare annotation is: true [2020-10-23 20:35:01,621 INFO L277 CegarLoopResult]: At program point L11-4(line 11) the Hoare annotation is: true [2020-10-23 20:35:01,621 INFO L277 CegarLoopResult]: At program point L11-5(line 11) the Hoare annotation is: true [2020-10-23 20:35:01,622 INFO L277 CegarLoopResult]: At program point get_dummyEXIT(lines 9 12) the Hoare annotation is: true [2020-10-23 20:35:01,622 INFO L277 CegarLoopResult]: At program point ULTIMATE.startEXIT(line -1) the Hoare annotation is: true [2020-10-23 20:35:01,622 INFO L277 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true [2020-10-23 20:35:01,622 INFO L277 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-10-23 20:35:01,622 INFO L277 CegarLoopResult]: At program point ULTIMATE.startFINAL(line -1) the Hoare annotation is: true [2020-10-23 20:35:01,622 INFO L270 CegarLoopResult]: At program point L27(line 27) the Hoare annotation is: false [2020-10-23 20:35:01,622 INFO L270 CegarLoopResult]: At program point mainEXIT(lines 14 29) the Hoare annotation is: (not (= main_~pc~0.base 0)) [2020-10-23 20:35:01,623 INFO L270 CegarLoopResult]: At program point L19(line 19) the Hoare annotation is: (and (not (= main_~pc~0.base 0)) (not (= |main_~#c~0.base| 0))) [2020-10-23 20:35:01,623 INFO L270 CegarLoopResult]: At program point L19-1(line 19) the Hoare annotation is: (and (not (= main_~pc~0.base 0)) (not (= |main_~#c~0.base| 0))) [2020-10-23 20:35:01,623 INFO L270 CegarLoopResult]: At program point L19-2(line 19) the Hoare annotation is: (and (not (= main_~pc~0.base 0)) (not (= |main_~#c~0.base| 0))) [2020-10-23 20:35:01,623 INFO L270 CegarLoopResult]: At program point L19-3(line 19) the Hoare annotation is: (and (not (= main_~pc~0.base 0)) (not (= |main_~#c~0.base| 0)) (= main_~pa~0.base main_~pb~0.base) (= main_~pb~0.offset main_~pa~0.offset)) [2020-10-23 20:35:01,623 INFO L270 CegarLoopResult]: At program point L15(line 15) the Hoare annotation is: (and (= |old(#length)| |#length|) (= |old(#valid)| |#valid|)) [2020-10-23 20:35:01,624 INFO L270 CegarLoopResult]: At program point L15-1(line 15) the Hoare annotation is: (and (= |old(#length)| |#length|) (= |old(#valid)| |#valid|)) [2020-10-23 20:35:01,624 INFO L270 CegarLoopResult]: At program point L15-2(line 15) the Hoare annotation is: (not (= |main_~#c~0.base| 0)) [2020-10-23 20:35:01,624 INFO L270 CegarLoopResult]: At program point L15-3(line 15) the Hoare annotation is: (not (= |main_~#c~0.base| 0)) [2020-10-23 20:35:01,624 INFO L270 CegarLoopResult]: At program point L15-4(line 15) the Hoare annotation is: (and (not (= main_~pc~0.base 0)) (not (= |main_~#c~0.base| 0))) [2020-10-23 20:35:01,624 INFO L270 CegarLoopResult]: At program point L15-5(line 15) the Hoare annotation is: (and (not (= main_~pc~0.base 0)) (not (= |main_~#c~0.base| 0))) [2020-10-23 20:35:01,625 INFO L270 CegarLoopResult]: At program point L15-6(line 15) the Hoare annotation is: false [2020-10-23 20:35:01,625 INFO L270 CegarLoopResult]: At program point L15-7(line 15) the Hoare annotation is: false [2020-10-23 20:35:01,625 INFO L270 CegarLoopResult]: At program point L28(line 28) the Hoare annotation is: false [2020-10-23 20:35:01,625 INFO L270 CegarLoopResult]: At program point L20(lines 20 21) the Hoare annotation is: (and (not (= main_~pc~0.base 0)) (not (= |main_~#c~0.base| 0)) (= main_~pa~0.base main_~pb~0.base) (= main_~pb~0.offset main_~pa~0.offset)) [2020-10-23 20:35:01,625 INFO L270 CegarLoopResult]: At program point L20-1(lines 20 21) the Hoare annotation is: (and (not (= main_~pc~0.base 0)) (not (= |main_~#c~0.base| 0)) (not |main_#t~short15|) (= main_~pa~0.base main_~pb~0.base) (= main_~pb~0.offset main_~pa~0.offset)) [2020-10-23 20:35:01,626 INFO L270 CegarLoopResult]: At program point L20-3(lines 20 23) the Hoare annotation is: (and (not (= main_~pc~0.base 0)) (= |main_#t~mem12| |main_#t~mem13|) (not (= |main_~#c~0.base| 0)) (not |main_#t~short14|) (not |main_#t~short15|) (= main_~pa~0.base main_~pb~0.base) (= |main_#t~mem12| (select (select |#memory_int| main_~pb~0.base) main_~pb~0.offset)) (= main_~pb~0.offset main_~pa~0.offset)) [2020-10-23 20:35:01,626 INFO L270 CegarLoopResult]: At program point L16(line 16) the Hoare annotation is: (not (= |main_~#c~0.base| 0)) [2020-10-23 20:35:01,626 INFO L270 CegarLoopResult]: At program point L20-4(lines 20 21) the Hoare annotation is: false [2020-10-23 20:35:01,626 INFO L270 CegarLoopResult]: At program point L16-1(line 16) the Hoare annotation is: (not (= |main_~#c~0.base| 0)) [2020-10-23 20:35:01,626 INFO L270 CegarLoopResult]: At program point L20-5(lines 20 21) the Hoare annotation is: (and (not (= main_~pc~0.base 0)) (not (= |main_~#c~0.base| 0)) (not |main_#t~short15|)) [2020-10-23 20:35:01,627 INFO L270 CegarLoopResult]: At program point L25(line 25) the Hoare annotation is: (and (not (= main_~pc~0.base 0)) (not (= |main_~#c~0.base| 0))) [2020-10-23 20:35:01,627 INFO L270 CegarLoopResult]: At program point L21(line 21) the Hoare annotation is: (and (not (= main_~pc~0.base 0)) (not (= |main_~#c~0.base| 0)) (not |main_#t~short15|) (= main_~pa~0.base main_~pb~0.base) (= main_~pb~0.offset main_~pa~0.offset)) [2020-10-23 20:35:01,627 INFO L270 CegarLoopResult]: At program point L21-1(line 21) the Hoare annotation is: (and |main_#t~short14| (not (= main_~pc~0.base 0)) (not (= |main_~#c~0.base| 0)) (not |main_#t~short15|) (= main_~pa~0.base main_~pb~0.base) (= main_~pb~0.offset main_~pa~0.offset)) [2020-10-23 20:35:01,627 INFO L270 CegarLoopResult]: At program point L21-2(line 21) the Hoare annotation is: (and |main_#t~short14| (not (= main_~pc~0.base 0)) (not (= |main_~#c~0.base| 0)) (not |main_#t~short15|) (= main_~pa~0.base main_~pb~0.base) (= main_~pb~0.offset main_~pa~0.offset)) [2020-10-23 20:35:01,627 INFO L270 CegarLoopResult]: At program point L21-3(line 21) the Hoare annotation is: (and |main_#t~short14| (not (= main_~pc~0.base 0)) (not (= |main_~#c~0.base| 0)) (not |main_#t~short15|) (= main_~pa~0.base main_~pb~0.base) (= |main_#t~mem12| (select (select |#memory_int| main_~pb~0.base) main_~pb~0.offset)) (= main_~pb~0.offset main_~pa~0.offset)) [2020-10-23 20:35:01,628 INFO L270 CegarLoopResult]: At program point L17(line 17) the Hoare annotation is: (not (= |main_~#c~0.base| 0)) [2020-10-23 20:35:01,628 INFO L270 CegarLoopResult]: At program point L21-4(line 21) the Hoare annotation is: (and |main_#t~short14| (not (= main_~pc~0.base 0)) (= |main_#t~mem12| |main_#t~mem13|) (not (= |main_~#c~0.base| 0)) (not |main_#t~short15|) (= main_~pa~0.base main_~pb~0.base) (= |main_#t~mem12| (select (select |#memory_int| main_~pb~0.base) main_~pb~0.offset)) (= main_~pb~0.offset main_~pa~0.offset)) [2020-10-23 20:35:01,628 INFO L270 CegarLoopResult]: At program point L17-1(line 17) the Hoare annotation is: (not (= |main_~#c~0.base| 0)) [2020-10-23 20:35:01,628 INFO L270 CegarLoopResult]: At program point L17-2(line 17) the Hoare annotation is: (not (= |main_~#c~0.base| 0)) [2020-10-23 20:35:01,629 INFO L270 CegarLoopResult]: At program point L21-6(line 21) the Hoare annotation is: (and (not (= main_~pc~0.base 0)) (= |main_#t~mem12| |main_#t~mem13|) (not (= |main_~#c~0.base| 0)) (not |main_#t~short14|) (not |main_#t~short15|) (= main_~pa~0.base main_~pb~0.base) (= |main_#t~mem12| (select (select |#memory_int| main_~pb~0.base) main_~pb~0.offset)) (= main_~pb~0.offset main_~pa~0.offset)) [2020-10-23 20:35:01,629 INFO L270 CegarLoopResult]: At program point L21-7(line 21) the Hoare annotation is: false [2020-10-23 20:35:01,629 INFO L270 CegarLoopResult]: At program point L21-8(line 21) the Hoare annotation is: false [2020-10-23 20:35:01,629 INFO L270 CegarLoopResult]: At program point mainFINAL(lines 14 29) the Hoare annotation is: (not (= main_~pc~0.base 0)) [2020-10-23 20:35:01,629 INFO L270 CegarLoopResult]: At program point L21-9(line 21) the Hoare annotation is: false [2020-10-23 20:35:01,629 INFO L270 CegarLoopResult]: At program point L21-10(line 21) the Hoare annotation is: (and (not (= main_~pc~0.base 0)) (not (= |main_~#c~0.base| 0)) (not |main_#t~short15|)) [2020-10-23 20:35:01,630 INFO L270 CegarLoopResult]: At program point L21-11(line 21) the Hoare annotation is: (and (not (= main_~pc~0.base 0)) (not (= |main_~#c~0.base| 0)) (not |main_#t~short15|)) [2020-10-23 20:35:01,630 INFO L270 CegarLoopResult]: At program point L21-12(line 21) the Hoare annotation is: (and (not (= main_~pc~0.base 0)) (not (= |main_~#c~0.base| 0))) [2020-10-23 20:35:01,630 INFO L270 CegarLoopResult]: At program point mainENTRY(lines 14 29) the Hoare annotation is: (and (= |old(#length)| |#length|) (= |old(#valid)| |#valid|)) [2020-10-23 20:35:01,630 INFO L270 CegarLoopResult]: At program point L22(lines 14 29) the Hoare annotation is: false [2020-10-23 20:35:01,630 INFO L270 CegarLoopResult]: At program point L18(line 18) the Hoare annotation is: (not (= |main_~#c~0.base| 0)) [2020-10-23 20:35:01,630 INFO L270 CegarLoopResult]: At program point L18-1(line 18) the Hoare annotation is: (not (= |main_~#c~0.base| 0)) [2020-10-23 20:35:01,631 INFO L270 CegarLoopResult]: At program point L18-2(line 18) the Hoare annotation is: (not (= |main_~#c~0.base| 0)) [2020-10-23 20:35:01,650 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.10 08:35:01 BoogieIcfgContainer [2020-10-23 20:35:01,650 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-23 20:35:01,653 INFO L168 Benchmark]: Toolchain (without parser) took 3363.13 ms. Allocated memory was 164.6 MB in the beginning and 198.2 MB in the end (delta: 33.6 MB). Free memory was 122.7 MB in the beginning and 138.7 MB in the end (delta: -16.0 MB). Peak memory consumption was 65.4 MB. Max. memory is 8.0 GB. [2020-10-23 20:35:01,654 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 164.6 MB. Free memory was 139.0 MB in the beginning and 138.9 MB in the end (delta: 108.2 kB). There was no memory consumed. Max. memory is 8.0 GB. [2020-10-23 20:35:01,656 INFO L168 Benchmark]: CACSL2BoogieTranslator took 301.17 ms. Allocated memory is still 164.6 MB. Free memory was 122.0 MB in the beginning and 140.8 MB in the end (delta: -18.8 MB). Peak memory consumption was 5.1 MB. Max. memory is 8.0 GB. [2020-10-23 20:35:01,657 INFO L168 Benchmark]: Boogie Preprocessor took 34.40 ms. Allocated memory is still 164.6 MB. Free memory was 140.8 MB in the beginning and 139.4 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2020-10-23 20:35:01,657 INFO L168 Benchmark]: RCFGBuilder took 530.78 ms. Allocated memory is still 164.6 MB. Free memory was 139.4 MB in the beginning and 130.0 MB in the end (delta: 9.4 MB). Peak memory consumption was 10.8 MB. Max. memory is 8.0 GB. [2020-10-23 20:35:01,659 INFO L168 Benchmark]: TraceAbstraction took 2485.64 ms. Allocated memory was 164.6 MB in the beginning and 198.2 MB in the end (delta: 33.6 MB). Free memory was 129.6 MB in the beginning and 138.7 MB in the end (delta: -9.1 MB). Peak memory consumption was 72.6 MB. Max. memory is 8.0 GB. [2020-10-23 20:35:01,662 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 164.6 MB. Free memory was 139.0 MB in the beginning and 138.9 MB in the end (delta: 108.2 kB). There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 301.17 ms. Allocated memory is still 164.6 MB. Free memory was 122.0 MB in the beginning and 140.8 MB in the end (delta: -18.8 MB). Peak memory consumption was 5.1 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 34.40 ms. Allocated memory is still 164.6 MB. Free memory was 140.8 MB in the beginning and 139.4 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 530.78 ms. Allocated memory is still 164.6 MB. Free memory was 139.4 MB in the beginning and 130.0 MB in the end (delta: 9.4 MB). Peak memory consumption was 10.8 MB. Max. memory is 8.0 GB. * TraceAbstraction took 2485.64 ms. Allocated memory was 164.6 MB in the beginning and 198.2 MB in the end (delta: 33.6 MB). Free memory was 129.6 MB in the beginning and 138.7 MB in the end (delta: -9.1 MB). Peak memory consumption was 72.6 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 3]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 14]: Loop Invariant Derived loop invariant: 0 - ProcedureContractResult [Line: 3]: Procedure Contract for reach_error Derived contract for procedure reach_error: 1 - ProcedureContractResult [Line: 9]: Procedure Contract for get_dummy Derived contract for procedure get_dummy: 1 - ProcedureContractResult [Line: 14]: Procedure Contract for main Derived contract for procedure main: !(pc == 0) - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 74 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 1.9s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 0.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.4s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 153 SDtfs, 114 SDslu, 314 SDs, 0 SdLazy, 293 SolverSat, 15 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 35 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=74occurred 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, 3 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 74 LocationsWithAnnotation, 82 PreInvPairs, 95 NumberOfFragments, 457 HoareAnnotationTreeSize, 82 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 74 FomulaSimplificationsInter, 444 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...