/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/ldv-regression/test18.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-72570d3 [2020-08-22 16:45:20,641 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-08-22 16:45:20,644 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-08-22 16:45:20,689 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-08-22 16:45:20,689 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-08-22 16:45:20,701 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-08-22 16:45:20,703 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-08-22 16:45:20,706 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-08-22 16:45:20,710 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-08-22 16:45:20,714 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-08-22 16:45:20,715 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-08-22 16:45:20,717 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-08-22 16:45:20,718 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-08-22 16:45:20,720 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-08-22 16:45:20,723 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-08-22 16:45:20,724 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-08-22 16:45:20,726 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-08-22 16:45:20,728 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-08-22 16:45:20,730 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-08-22 16:45:20,738 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-08-22 16:45:20,741 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-08-22 16:45:20,742 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-08-22 16:45:20,743 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-08-22 16:45:20,744 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-08-22 16:45:20,749 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-08-22 16:45:20,749 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-08-22 16:45:20,749 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-08-22 16:45:20,752 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-08-22 16:45:20,753 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-08-22 16:45:20,756 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-08-22 16:45:20,756 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-08-22 16:45:20,757 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-08-22 16:45:20,758 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-08-22 16:45:20,758 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-08-22 16:45:20,760 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-08-22 16:45:20,760 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-08-22 16:45:20,761 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-08-22 16:45:20,761 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-08-22 16:45:20,761 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-08-22 16:45:20,762 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-08-22 16:45:20,764 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-08-22 16:45:20,765 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-08-22 16:45:20,813 INFO L113 SettingsManager]: Loading preferences was successful [2020-08-22 16:45:20,813 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-08-22 16:45:20,816 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-08-22 16:45:20,816 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-08-22 16:45:20,816 INFO L138 SettingsManager]: * Use SBE=true [2020-08-22 16:45:20,816 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-08-22 16:45:20,817 INFO L138 SettingsManager]: * sizeof long=4 [2020-08-22 16:45:20,817 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-08-22 16:45:20,817 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-08-22 16:45:20,817 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-08-22 16:45:20,819 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-08-22 16:45:20,819 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-08-22 16:45:20,819 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-08-22 16:45:20,820 INFO L138 SettingsManager]: * sizeof long double=12 [2020-08-22 16:45:20,820 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-08-22 16:45:20,820 INFO L138 SettingsManager]: * Use constant arrays=true [2020-08-22 16:45:20,820 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-08-22 16:45:20,821 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-08-22 16:45:20,821 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-08-22 16:45:20,821 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-08-22 16:45:20,821 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-08-22 16:45:20,821 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-08-22 16:45:20,822 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-08-22 16:45:20,822 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-08-22 16:45:20,822 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-08-22 16:45:20,822 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-08-22 16:45:20,822 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-08-22 16:45:20,823 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-08-22 16:45:20,823 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-08-22 16:45:20,823 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-08-22 16:45:21,194 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-08-22 16:45:21,216 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-08-22 16:45:21,227 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-08-22 16:45:21,229 INFO L271 PluginConnector]: Initializing CDTParser... [2020-08-22 16:45:21,229 INFO L275 PluginConnector]: CDTParser initialized [2020-08-22 16:45:21,231 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-regression/test18.c [2020-08-22 16:45:21,309 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ca746d23c/23c508be59b643fe825c8773a67d16c7/FLAGa2c513629 [2020-08-22 16:45:21,770 INFO L306 CDTParser]: Found 1 translation units. [2020-08-22 16:45:21,771 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-regression/test18.c [2020-08-22 16:45:21,776 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ca746d23c/23c508be59b643fe825c8773a67d16c7/FLAGa2c513629 [2020-08-22 16:45:22,193 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ca746d23c/23c508be59b643fe825c8773a67d16c7 [2020-08-22 16:45:22,204 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-08-22 16:45:22,207 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-08-22 16:45:22,208 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-08-22 16:45:22,208 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-08-22 16:45:22,213 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-08-22 16:45:22,214 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.08 04:45:22" (1/1) ... [2020-08-22 16:45:22,218 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@56390313 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 04:45:22, skipping insertion in model container [2020-08-22 16:45:22,218 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.08 04:45:22" (1/1) ... [2020-08-22 16:45:22,227 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-08-22 16:45:22,247 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-08-22 16:45:22,530 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-22 16:45:22,558 INFO L203 MainTranslator]: Completed pre-run [2020-08-22 16:45:22,579 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-22 16:45:22,603 INFO L208 MainTranslator]: Completed translation [2020-08-22 16:45:22,605 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 04:45:22 WrapperNode [2020-08-22 16:45:22,606 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-08-22 16:45:22,607 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-08-22 16:45:22,607 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-08-22 16:45:22,607 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-08-22 16:45:22,723 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 04:45:22" (1/1) ... [2020-08-22 16:45:22,725 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 04:45:22" (1/1) ... [2020-08-22 16:45:22,736 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 04:45:22" (1/1) ... [2020-08-22 16:45:22,736 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 04:45:22" (1/1) ... [2020-08-22 16:45:22,754 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 04:45:22" (1/1) ... [2020-08-22 16:45:22,758 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 04:45:22" (1/1) ... [2020-08-22 16:45:22,766 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 04:45:22" (1/1) ... [2020-08-22 16:45:22,769 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-08-22 16:45:22,770 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-08-22 16:45:22,770 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-08-22 16:45:22,770 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-08-22 16:45:22,771 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 04:45:22" (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 [2020-08-22 16:45:22,835 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-08-22 16:45:22,835 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-08-22 16:45:22,835 INFO L138 BoogieDeclarations]: Found implementation of procedure g [2020-08-22 16:45:22,835 INFO L138 BoogieDeclarations]: Found implementation of procedure f [2020-08-22 16:45:22,836 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-08-22 16:45:22,836 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-08-22 16:45:22,836 INFO L130 BoogieDeclarations]: Found specification of procedure g [2020-08-22 16:45:22,836 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-08-22 16:45:22,836 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-08-22 16:45:22,837 INFO L130 BoogieDeclarations]: Found specification of procedure f [2020-08-22 16:45:22,837 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-08-22 16:45:22,837 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-08-22 16:45:22,837 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-08-22 16:45:22,837 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-08-22 16:45:22,838 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-08-22 16:45:22,838 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-08-22 16:45:22,838 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-08-22 16:45:23,086 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-08-22 16:45:23,087 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-08-22 16:45:23,092 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.08 04:45:23 BoogieIcfgContainer [2020-08-22 16:45:23,093 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-08-22 16:45:23,094 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-08-22 16:45:23,094 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-08-22 16:45:23,098 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-08-22 16:45:23,098 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.08 04:45:22" (1/3) ... [2020-08-22 16:45:23,099 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@33908b37 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.08 04:45:23, skipping insertion in model container [2020-08-22 16:45:23,099 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 04:45:22" (2/3) ... [2020-08-22 16:45:23,100 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@33908b37 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.08 04:45:23, skipping insertion in model container [2020-08-22 16:45:23,100 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.08 04:45:23" (3/3) ... [2020-08-22 16:45:23,102 INFO L109 eAbstractionObserver]: Analyzing ICFG test18.c [2020-08-22 16:45:23,115 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-08-22 16:45:23,126 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-08-22 16:45:23,152 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-08-22 16:45:23,189 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-08-22 16:45:23,190 INFO L376 AbstractCegarLoop]: Hoare is true [2020-08-22 16:45:23,200 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-08-22 16:45:23,201 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-08-22 16:45:23,201 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-08-22 16:45:23,201 INFO L380 AbstractCegarLoop]: Difference is false [2020-08-22 16:45:23,201 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-08-22 16:45:23,202 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-08-22 16:45:23,231 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states. [2020-08-22 16:45:23,237 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-08-22 16:45:23,247 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 16:45:23,249 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-22 16:45:23,252 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 16:45:23,262 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 16:45:23,263 INFO L82 PathProgramCache]: Analyzing trace with hash 731851180, now seen corresponding path program 1 times [2020-08-22 16:45:23,273 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-08-22 16:45:23,274 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2129337116] [2020-08-22 16:45:23,274 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 16:45:23,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:45:23,608 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 16:45:23,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:45:23,649 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-22 16:45:23,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:45:23,810 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 16:45:23,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:45:23,863 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-22 16:45:23,864 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2129337116] [2020-08-22 16:45:23,865 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 16:45:23,866 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-08-22 16:45:23,867 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1295510590] [2020-08-22 16:45:23,873 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-08-22 16:45:23,873 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-08-22 16:45:23,888 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-08-22 16:45:23,890 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2020-08-22 16:45:23,892 INFO L87 Difference]: Start difference. First operand 23 states. Second operand 11 states. [2020-08-22 16:45:24,168 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 16:45:24,169 INFO L93 Difference]: Finished difference Result 27 states and 26 transitions. [2020-08-22 16:45:24,169 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-08-22 16:45:24,171 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 18 [2020-08-22 16:45:24,172 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 16:45:24,178 INFO L225 Difference]: With dead ends: 27 [2020-08-22 16:45:24,178 INFO L226 Difference]: Without dead ends: 0 [2020-08-22 16:45:24,182 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=33, Invalid=149, Unknown=0, NotChecked=0, Total=182 [2020-08-22 16:45:24,201 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-08-22 16:45:24,206 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-08-22 16:45:24,207 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-08-22 16:45:24,207 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-08-22 16:45:24,209 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 18 [2020-08-22 16:45:24,209 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 16:45:24,209 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-08-22 16:45:24,209 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-08-22 16:45:24,209 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-08-22 16:45:24,210 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-08-22 16:45:24,210 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-08-22 16:45:24,212 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-08-22 16:45:24,397 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-08-22 16:45:24,398 INFO L264 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= |old(#NULL.base)| |#NULL.base|) (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#valid)| |#valid|)) [2020-08-22 16:45:24,398 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-08-22 16:45:24,398 INFO L264 CegarLoopResult]: At program point L9(line 9) the Hoare annotation is: (and (= (select (select |#memory_$Pointer$.offset| |f_~#pb.base|) |f_~#pb.offset|) |f_#in~pb.offset|) (= (select (select |#memory_$Pointer$.base| |f_~#pb.base|) |f_~#pb.offset|) |f_#in~pb.base|)) [2020-08-22 16:45:24,398 INFO L268 CegarLoopResult]: For program point L9-1(line 9) no Hoare annotation was computed. [2020-08-22 16:45:24,398 INFO L268 CegarLoopResult]: For program point fEXIT(lines 8 11) no Hoare annotation was computed. [2020-08-22 16:45:24,399 INFO L264 CegarLoopResult]: At program point fENTRY(lines 8 11) the Hoare annotation is: (and (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|) (= |old(#length)| |#length|) (= |#memory_int| |old(#memory_int)|) (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|) (= |old(#valid)| |#valid|)) [2020-08-22 16:45:24,399 INFO L268 CegarLoopResult]: For program point fFINAL(lines 8 11) no Hoare annotation was computed. [2020-08-22 16:45:24,399 INFO L268 CegarLoopResult]: For program point gEXIT(lines 4 6) no Hoare annotation was computed. [2020-08-22 16:45:24,399 INFO L268 CegarLoopResult]: For program point gFINAL(lines 4 6) no Hoare annotation was computed. [2020-08-22 16:45:24,399 INFO L264 CegarLoopResult]: At program point gENTRY(lines 4 6) the Hoare annotation is: (and (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|) (= |#memory_int| |old(#memory_int)|) (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|)) [2020-08-22 16:45:24,400 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-08-22 16:45:24,400 INFO L271 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true [2020-08-22 16:45:24,400 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-08-22 16:45:24,400 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-08-22 16:45:24,400 INFO L264 CegarLoopResult]: At program point L17(lines 13 24) the Hoare annotation is: false [2020-08-22 16:45:24,400 INFO L268 CegarLoopResult]: For program point L16(lines 16 18) no Hoare annotation was computed. [2020-08-22 16:45:24,401 INFO L268 CegarLoopResult]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 22) no Hoare annotation was computed. [2020-08-22 16:45:24,401 INFO L264 CegarLoopResult]: At program point L15(line 15) the Hoare annotation is: (and (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|) (= |#memory_int| |old(#memory_int)|) (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|)) [2020-08-22 16:45:24,401 INFO L268 CegarLoopResult]: For program point L15-1(line 15) no Hoare annotation was computed. [2020-08-22 16:45:24,402 INFO L264 CegarLoopResult]: At program point mainENTRY(lines 13 24) the Hoare annotation is: (and (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|) (= |old(#length)| |#length|) (= |#memory_int| |old(#memory_int)|) (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|) (= |old(#valid)| |#valid|)) [2020-08-22 16:45:24,402 INFO L268 CegarLoopResult]: For program point mainFINAL(lines 13 24) no Hoare annotation was computed. [2020-08-22 16:45:24,402 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 13 24) no Hoare annotation was computed. [2020-08-22 16:45:24,414 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.08 04:45:24 BoogieIcfgContainer [2020-08-22 16:45:24,415 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-08-22 16:45:24,418 INFO L168 Benchmark]: Toolchain (without parser) took 2210.71 ms. Allocated memory was 141.0 MB in the beginning and 234.9 MB in the end (delta: 93.8 MB). Free memory was 103.2 MB in the beginning and 193.1 MB in the end (delta: -90.0 MB). Peak memory consumption was 79.9 MB. Max. memory is 7.1 GB. [2020-08-22 16:45:24,419 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 141.0 MB. Free memory was 121.3 MB in the beginning and 120.9 MB in the end (delta: 419.7 kB). Peak memory consumption was 419.7 kB. Max. memory is 7.1 GB. [2020-08-22 16:45:24,420 INFO L168 Benchmark]: CACSL2BoogieTranslator took 398.39 ms. Allocated memory is still 141.0 MB. Free memory was 102.7 MB in the beginning and 93.3 MB in the end (delta: 9.4 MB). Peak memory consumption was 9.4 MB. Max. memory is 7.1 GB. [2020-08-22 16:45:24,421 INFO L168 Benchmark]: Boogie Preprocessor took 163.10 ms. Allocated memory was 141.0 MB in the beginning and 202.9 MB in the end (delta: 61.9 MB). Free memory was 93.3 MB in the beginning and 180.5 MB in the end (delta: -87.2 MB). Peak memory consumption was 12.6 MB. Max. memory is 7.1 GB. [2020-08-22 16:45:24,422 INFO L168 Benchmark]: RCFGBuilder took 322.64 ms. Allocated memory is still 202.9 MB. Free memory was 180.5 MB in the beginning and 165.1 MB in the end (delta: 15.4 MB). Peak memory consumption was 15.4 MB. Max. memory is 7.1 GB. [2020-08-22 16:45:24,423 INFO L168 Benchmark]: TraceAbstraction took 1320.80 ms. Allocated memory was 202.9 MB in the beginning and 234.9 MB in the end (delta: 32.0 MB). Free memory was 164.1 MB in the beginning and 193.1 MB in the end (delta: -29.0 MB). Peak memory consumption was 79.0 MB. Max. memory is 7.1 GB. [2020-08-22 16:45:24,428 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 141.0 MB. Free memory was 121.3 MB in the beginning and 120.9 MB in the end (delta: 419.7 kB). Peak memory consumption was 419.7 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 398.39 ms. Allocated memory is still 141.0 MB. Free memory was 102.7 MB in the beginning and 93.3 MB in the end (delta: 9.4 MB). Peak memory consumption was 9.4 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 163.10 ms. Allocated memory was 141.0 MB in the beginning and 202.9 MB in the end (delta: 61.9 MB). Free memory was 93.3 MB in the beginning and 180.5 MB in the end (delta: -87.2 MB). Peak memory consumption was 12.6 MB. Max. memory is 7.1 GB. * RCFGBuilder took 322.64 ms. Allocated memory is still 202.9 MB. Free memory was 180.5 MB in the beginning and 165.1 MB in the end (delta: 15.4 MB). Peak memory consumption was 15.4 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1320.80 ms. Allocated memory was 202.9 MB in the beginning and 234.9 MB in the end (delta: 32.0 MB). Free memory was 164.1 MB in the beginning and 193.1 MB in the end (delta: -29.0 MB). Peak memory consumption was 79.0 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 22]: 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: 13]: Loop Invariant Derived loop invariant: 0 - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 23 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 1.0s, OverallIterations: 1, TraceHistogramMax: 1, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.1s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 11 SDtfs, 3 SDslu, 45 SDs, 0 SdLazy, 105 SolverSat, 12 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 16 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=23occurred 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, 9 LocationsWithAnnotation, 9 PreInvPairs, 9 NumberOfFragments, 80 HoareAnnotationTreeSize, 9 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 9 FomulaSimplificationsInter, 36 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 18 NumberOfCodeBlocks, 18 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 17 ConstructedInterpolants, 0 QuantifiedInterpolants, 2414 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...