/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc config/AutomizerReach.xml -s config/svcomp-Reach-64bit-Automizer_Default.epf -i ../sv-benchmarks/c/nla-digbench-scaling/geo2-ll_valuebound1.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-4f750a8 [2020-12-22 05:21:43,111 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-22 05:21:43,116 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-22 05:21:43,170 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-22 05:21:43,170 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-22 05:21:43,174 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-22 05:21:43,177 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-22 05:21:43,193 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-22 05:21:43,197 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-22 05:21:43,202 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-22 05:21:43,203 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-22 05:21:43,205 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-22 05:21:43,205 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-22 05:21:43,208 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-22 05:21:43,210 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-22 05:21:43,212 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-22 05:21:43,213 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-22 05:21:43,216 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-22 05:21:43,222 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-22 05:21:43,229 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-22 05:21:43,231 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-22 05:21:43,233 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-22 05:21:43,234 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-22 05:21:43,236 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-22 05:21:43,245 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-12-22 05:21:43,249 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-22 05:21:43,250 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-22 05:21:43,252 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-22 05:21:43,252 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-22 05:21:43,253 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-22 05:21:43,254 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-22 05:21:43,254 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-22 05:21:43,255 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-22 05:21:43,255 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-22 05:21:43,256 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-22 05:21:43,256 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-22 05:21:43,257 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2020-12-22 05:21:43,302 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-22 05:21:43,302 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-22 05:21:43,304 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-22 05:21:43,304 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-22 05:21:43,304 INFO L138 SettingsManager]: * Use SBE=true [2020-12-22 05:21:43,305 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-22 05:21:43,305 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-22 05:21:43,305 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-22 05:21:43,305 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-22 05:21:43,305 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-22 05:21:43,306 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-22 05:21:43,306 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-22 05:21:43,306 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-22 05:21:43,306 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-22 05:21:43,306 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-22 05:21:43,307 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-22 05:21:43,307 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-22 05:21:43,307 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-22 05:21:43,307 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-22 05:21:43,307 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-22 05:21:43,308 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-22 05:21:43,308 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-12-22 05:21:43,308 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-22 05:21:43,308 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-22 05:21:43,308 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-22 05:21:43,308 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-12-22 05:21:43,660 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-22 05:21:43,687 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-22 05:21:43,690 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-22 05:21:43,691 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-22 05:21:43,692 INFO L275 PluginConnector]: CDTParser initialized [2020-12-22 05:21:43,693 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/nla-digbench-scaling/geo2-ll_valuebound1.c [2020-12-22 05:21:43,763 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5ae0e5d70/6644c761dacf40a3b47b4eb3f715d498/FLAG9fb15ee42 [2020-12-22 05:21:44,404 INFO L306 CDTParser]: Found 1 translation units. [2020-12-22 05:21:44,405 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/nla-digbench-scaling/geo2-ll_valuebound1.c [2020-12-22 05:21:44,412 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5ae0e5d70/6644c761dacf40a3b47b4eb3f715d498/FLAG9fb15ee42 [2020-12-22 05:21:44,770 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5ae0e5d70/6644c761dacf40a3b47b4eb3f715d498 [2020-12-22 05:21:44,778 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-22 05:21:44,780 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-22 05:21:44,785 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-22 05:21:44,785 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-22 05:21:44,788 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-22 05:21:44,789 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 05:21:44" (1/1) ... [2020-12-22 05:21:44,791 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2768442e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 05:21:44, skipping insertion in model container [2020-12-22 05:21:44,792 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 05:21:44" (1/1) ... [2020-12-22 05:21:44,801 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-22 05:21:44,820 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-22 05:21:44,969 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/nla-digbench-scaling/geo2-ll_valuebound1.c[525,538] [2020-12-22 05:21:44,982 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-22 05:21:44,991 INFO L203 MainTranslator]: Completed pre-run [2020-12-22 05:21:45,005 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/nla-digbench-scaling/geo2-ll_valuebound1.c[525,538] [2020-12-22 05:21:45,011 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-22 05:21:45,027 INFO L208 MainTranslator]: Completed translation [2020-12-22 05:21:45,027 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 05:21:45 WrapperNode [2020-12-22 05:21:45,027 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-22 05:21:45,029 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-22 05:21:45,029 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-22 05:21:45,029 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-22 05:21:45,037 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 05:21:45" (1/1) ... [2020-12-22 05:21:45,044 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 05:21:45" (1/1) ... [2020-12-22 05:21:45,064 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-22 05:21:45,065 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-22 05:21:45,065 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-22 05:21:45,065 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-22 05:21:45,074 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 05:21:45" (1/1) ... [2020-12-22 05:21:45,074 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 05:21:45" (1/1) ... [2020-12-22 05:21:45,076 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 05:21:45" (1/1) ... [2020-12-22 05:21:45,076 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 05:21:45" (1/1) ... [2020-12-22 05:21:45,080 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 05:21:45" (1/1) ... [2020-12-22 05:21:45,084 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 05:21:45" (1/1) ... [2020-12-22 05:21:45,086 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 05:21:45" (1/1) ... [2020-12-22 05:21:45,087 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-22 05:21:45,088 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-22 05:21:45,089 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-22 05:21:45,089 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-22 05:21:45,089 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 05:21:45" (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 [2020-12-22 05:21:45,183 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-22 05:21:45,183 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-22 05:21:45,183 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-22 05:21:45,183 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-22 05:21:45,390 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-22 05:21:45,391 INFO L299 CfgBuilder]: Removed 13 assume(true) statements. [2020-12-22 05:21:45,392 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 05:21:45 BoogieIcfgContainer [2020-12-22 05:21:45,392 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-22 05:21:45,394 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-22 05:21:45,394 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-22 05:21:45,398 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-22 05:21:45,398 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.12 05:21:44" (1/3) ... [2020-12-22 05:21:45,399 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4aa44a32 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 05:21:45, skipping insertion in model container [2020-12-22 05:21:45,399 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 05:21:45" (2/3) ... [2020-12-22 05:21:45,400 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4aa44a32 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 05:21:45, skipping insertion in model container [2020-12-22 05:21:45,400 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 05:21:45" (3/3) ... [2020-12-22 05:21:45,401 INFO L111 eAbstractionObserver]: Analyzing ICFG geo2-ll_valuebound1.c [2020-12-22 05:21:45,409 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-22 05:21:45,413 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2020-12-22 05:21:45,433 INFO L253 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2020-12-22 05:21:45,492 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-22 05:21:45,492 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-22 05:21:45,493 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-22 05:21:45,493 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-22 05:21:45,493 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-22 05:21:45,493 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-22 05:21:45,493 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-22 05:21:45,493 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-22 05:21:45,535 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states. [2020-12-22 05:21:45,546 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-12-22 05:21:45,546 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 05:21:45,547 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 05:21:45,548 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 05:21:45,556 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 05:21:45,557 INFO L82 PathProgramCache]: Analyzing trace with hash -594062832, now seen corresponding path program 1 times [2020-12-22 05:21:45,568 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 05:21:45,569 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2062633621] [2020-12-22 05:21:45,569 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 05:21:45,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 05:21:45,797 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 05:21:45,798 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2062633621] [2020-12-22 05:21:45,799 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 05:21:45,799 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-22 05:21:45,800 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1600531347] [2020-12-22 05:21:45,807 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-12-22 05:21:45,807 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 05:21:45,825 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-12-22 05:21:45,827 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-12-22 05:21:45,829 INFO L87 Difference]: Start difference. First operand 19 states. Second operand 2 states. [2020-12-22 05:21:45,848 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 05:21:45,849 INFO L93 Difference]: Finished difference Result 35 states and 46 transitions. [2020-12-22 05:21:45,849 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-12-22 05:21:45,850 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 9 [2020-12-22 05:21:45,851 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 05:21:45,871 INFO L225 Difference]: With dead ends: 35 [2020-12-22 05:21:45,875 INFO L226 Difference]: Without dead ends: 15 [2020-12-22 05:21:45,879 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-12-22 05:21:45,898 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2020-12-22 05:21:45,914 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2020-12-22 05:21:45,916 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2020-12-22 05:21:45,918 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 15 transitions. [2020-12-22 05:21:45,920 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 15 transitions. Word has length 9 [2020-12-22 05:21:45,920 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 05:21:45,920 INFO L481 AbstractCegarLoop]: Abstraction has 15 states and 15 transitions. [2020-12-22 05:21:45,920 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-12-22 05:21:45,920 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 15 transitions. [2020-12-22 05:21:45,921 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-12-22 05:21:45,921 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 05:21:45,921 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 05:21:45,923 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-22 05:21:45,923 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 05:21:45,926 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 05:21:45,926 INFO L82 PathProgramCache]: Analyzing trace with hash 1182791572, now seen corresponding path program 1 times [2020-12-22 05:21:45,927 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 05:21:45,927 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [12060516] [2020-12-22 05:21:45,928 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 05:21:45,973 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-12-22 05:21:45,973 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1586822975] [2020-12-22 05:21:45,974 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 05:21:46,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 05:21:46,072 INFO L263 TraceCheckSpWp]: Trace formula consists of 62 conjuncts, 15 conjunts are in the unsatisfiable core [2020-12-22 05:21:46,081 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-22 05:21:46,261 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 05:21:46,262 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [12060516] [2020-12-22 05:21:46,262 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-12-22 05:21:46,262 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1586822975] [2020-12-22 05:21:46,263 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 05:21:46,263 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-12-22 05:21:46,263 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [424045949] [2020-12-22 05:21:46,265 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-22 05:21:46,265 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 05:21:46,266 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-22 05:21:46,266 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-12-22 05:21:46,266 INFO L87 Difference]: Start difference. First operand 15 states and 15 transitions. Second operand 6 states. [2020-12-22 05:21:46,364 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 05:21:46,364 INFO L93 Difference]: Finished difference Result 25 states and 25 transitions. [2020-12-22 05:21:46,365 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-12-22 05:21:46,365 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 9 [2020-12-22 05:21:46,365 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 05:21:46,366 INFO L225 Difference]: With dead ends: 25 [2020-12-22 05:21:46,366 INFO L226 Difference]: Without dead ends: 19 [2020-12-22 05:21:46,367 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2020-12-22 05:21:46,368 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2020-12-22 05:21:46,372 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 18. [2020-12-22 05:21:46,372 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2020-12-22 05:21:46,373 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 18 transitions. [2020-12-22 05:21:46,373 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 18 transitions. Word has length 9 [2020-12-22 05:21:46,373 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 05:21:46,374 INFO L481 AbstractCegarLoop]: Abstraction has 18 states and 18 transitions. [2020-12-22 05:21:46,374 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-12-22 05:21:46,374 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 18 transitions. [2020-12-22 05:21:46,374 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-12-22 05:21:46,375 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 05:21:46,375 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 05:21:46,588 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2020-12-22 05:21:46,589 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 05:21:46,589 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 05:21:46,590 INFO L82 PathProgramCache]: Analyzing trace with hash 636965506, now seen corresponding path program 1 times [2020-12-22 05:21:46,591 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 05:21:46,591 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1377794060] [2020-12-22 05:21:46,592 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 05:21:46,608 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-12-22 05:21:46,609 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1591555663] [2020-12-22 05:21:46,609 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 05:21:46,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 05:21:46,664 INFO L263 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 7 conjunts are in the unsatisfiable core [2020-12-22 05:21:46,666 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-22 05:21:46,767 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 05:21:46,768 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1377794060] [2020-12-22 05:21:46,771 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-12-22 05:21:46,771 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1591555663] [2020-12-22 05:21:46,772 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 05:21:46,772 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-22 05:21:46,773 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1662700367] [2020-12-22 05:21:46,774 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-22 05:21:46,774 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 05:21:46,776 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-22 05:21:46,776 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-12-22 05:21:46,777 INFO L87 Difference]: Start difference. First operand 18 states and 18 transitions. Second operand 5 states. [2020-12-22 05:21:46,851 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 05:21:46,851 INFO L93 Difference]: Finished difference Result 18 states and 18 transitions. [2020-12-22 05:21:46,852 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-22 05:21:46,852 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 12 [2020-12-22 05:21:46,852 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 05:21:46,852 INFO L225 Difference]: With dead ends: 18 [2020-12-22 05:21:46,852 INFO L226 Difference]: Without dead ends: 0 [2020-12-22 05:21:46,854 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-12-22 05:21:46,855 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-12-22 05:21:46,855 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-12-22 05:21:46,855 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-12-22 05:21:46,855 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-12-22 05:21:46,855 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 12 [2020-12-22 05:21:46,856 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 05:21:46,856 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-12-22 05:21:46,856 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-22 05:21:46,856 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-12-22 05:21:46,856 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-12-22 05:21:47,069 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 05:21:47,074 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-12-22 05:21:47,128 INFO L185 CegarLoopUtils]: At program point L35-2(lines 35 44) the Hoare annotation is: (and (<= 0 ULTIMATE.start_main_~z~0) (= ULTIMATE.start_main_~x~0 1) (<= 1 ULTIMATE.start_main_~c~0) (= ULTIMATE.start_main_~y~0 1) (= ULTIMATE.start_assume_abort_if_not_~cond 1) (<= 0 ULTIMATE.start_main_~k~0) (<= ULTIMATE.start_main_~z~0 1) (<= ULTIMATE.start_main_~k~0 1)) [2020-12-22 05:21:47,128 INFO L189 CegarLoopUtils]: For program point L35-3(lines 35 44) no Hoare annotation was computed. [2020-12-22 05:21:47,128 INFO L189 CegarLoopUtils]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION(line 17) no Hoare annotation was computed. [2020-12-22 05:21:47,128 INFO L189 CegarLoopUtils]: For program point L15(lines 15 18) no Hoare annotation was computed. [2020-12-22 05:21:47,129 INFO L185 CegarLoopUtils]: At program point L15-2(lines 38 39) the Hoare annotation is: (and (<= 0 ULTIMATE.start_main_~z~0) (= ULTIMATE.start_main_~x~0 1) (= 1 ULTIMATE.start___VERIFIER_assert_~cond) (<= 1 ULTIMATE.start_main_~c~0) (= ULTIMATE.start_main_~y~0 1) (= ULTIMATE.start_assume_abort_if_not_~cond 1) (<= 0 ULTIMATE.start_main_~k~0) (<= ULTIMATE.start_main_~z~0 1) (<= ULTIMATE.start_main_~k~0 1)) [2020-12-22 05:21:47,129 INFO L189 CegarLoopUtils]: For program point L15-3(lines 15 18) no Hoare annotation was computed. [2020-12-22 05:21:47,129 INFO L189 CegarLoopUtils]: For program point L11(lines 11 13) no Hoare annotation was computed. [2020-12-22 05:21:47,129 INFO L189 CegarLoopUtils]: For program point L11-1(lines 11 13) no Hoare annotation was computed. [2020-12-22 05:21:47,129 INFO L192 CegarLoopUtils]: At program point L15-5(lines 14 20) the Hoare annotation is: true [2020-12-22 05:21:47,130 INFO L189 CegarLoopUtils]: For program point L-1(line -1) no Hoare annotation was computed. [2020-12-22 05:21:47,130 INFO L189 CegarLoopUtils]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-12-22 05:21:47,130 INFO L189 CegarLoopUtils]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-12-22 05:21:47,130 INFO L189 CegarLoopUtils]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 17) no Hoare annotation was computed. [2020-12-22 05:21:47,131 INFO L189 CegarLoopUtils]: For program point L16(lines 16 17) no Hoare annotation was computed. [2020-12-22 05:21:47,131 INFO L189 CegarLoopUtils]: For program point L16-1(lines 16 17) no Hoare annotation was computed. [2020-12-22 05:21:47,131 INFO L189 CegarLoopUtils]: For program point L12(line 12) no Hoare annotation was computed. [2020-12-22 05:21:47,131 INFO L189 CegarLoopUtils]: For program point L12-2(line 12) no Hoare annotation was computed. [2020-12-22 05:21:47,131 INFO L189 CegarLoopUtils]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-12-22 05:21:47,131 INFO L192 CegarLoopUtils]: At program point L46(lines 23 47) the Hoare annotation is: true [2020-12-22 05:21:47,157 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.12 05:21:47 BoogieIcfgContainer [2020-12-22 05:21:47,157 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-12-22 05:21:47,158 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-22 05:21:47,158 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-22 05:21:47,158 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-22 05:21:47,159 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 05:21:45" (3/4) ... [2020-12-22 05:21:47,164 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-12-22 05:21:47,177 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2020-12-22 05:21:47,177 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2020-12-22 05:21:47,178 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-12-22 05:21:47,178 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-12-22 05:21:47,227 INFO L141 WitnessManager]: Wrote witness to /storage/repos/svcomp/c/nla-digbench-scaling/geo2-ll_valuebound1.c-witness.graphml [2020-12-22 05:21:47,227 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-22 05:21:47,229 INFO L168 Benchmark]: Toolchain (without parser) took 2448.04 ms. Allocated memory is still 152.0 MB. Free memory was 126.9 MB in the beginning and 53.3 MB in the end (delta: 73.6 MB). Peak memory consumption was 73.5 MB. Max. memory is 8.0 GB. [2020-12-22 05:21:47,230 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 152.0 MB. Free memory is still 123.0 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-12-22 05:21:47,230 INFO L168 Benchmark]: CACSL2BoogieTranslator took 243.22 ms. Allocated memory is still 152.0 MB. Free memory was 126.7 MB in the beginning and 117.0 MB in the end (delta: 9.6 MB). Peak memory consumption was 9.4 MB. Max. memory is 8.0 GB. [2020-12-22 05:21:47,231 INFO L168 Benchmark]: Boogie Procedure Inliner took 35.79 ms. Allocated memory is still 152.0 MB. Free memory was 117.0 MB in the beginning and 115.6 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2020-12-22 05:21:47,232 INFO L168 Benchmark]: Boogie Preprocessor took 22.41 ms. Allocated memory is still 152.0 MB. Free memory was 115.6 MB in the beginning and 114.6 MB in the end (delta: 1.0 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2020-12-22 05:21:47,233 INFO L168 Benchmark]: RCFGBuilder took 304.23 ms. Allocated memory is still 152.0 MB. Free memory was 114.3 MB in the beginning and 101.7 MB in the end (delta: 12.6 MB). Peak memory consumption was 12.6 MB. Max. memory is 8.0 GB. [2020-12-22 05:21:47,233 INFO L168 Benchmark]: TraceAbstraction took 1763.23 ms. Allocated memory is still 152.0 MB. Free memory was 101.3 MB in the beginning and 56.0 MB in the end (delta: 45.3 MB). Peak memory consumption was 45.2 MB. Max. memory is 8.0 GB. [2020-12-22 05:21:47,234 INFO L168 Benchmark]: Witness Printer took 69.35 ms. Allocated memory is still 152.0 MB. Free memory was 56.0 MB in the beginning and 53.3 MB in the end (delta: 2.6 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. [2020-12-22 05:21:47,238 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 152.0 MB. Free memory is still 123.0 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 243.22 ms. Allocated memory is still 152.0 MB. Free memory was 126.7 MB in the beginning and 117.0 MB in the end (delta: 9.6 MB). Peak memory consumption was 9.4 MB. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 35.79 ms. Allocated memory is still 152.0 MB. Free memory was 117.0 MB in the beginning and 115.6 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 22.41 ms. Allocated memory is still 152.0 MB. Free memory was 115.6 MB in the beginning and 114.6 MB in the end (delta: 1.0 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 304.23 ms. Allocated memory is still 152.0 MB. Free memory was 114.3 MB in the beginning and 101.7 MB in the end (delta: 12.6 MB). Peak memory consumption was 12.6 MB. Max. memory is 8.0 GB. * TraceAbstraction took 1763.23 ms. Allocated memory is still 152.0 MB. Free memory was 101.3 MB in the beginning and 56.0 MB in the end (delta: 45.3 MB). Peak memory consumption was 45.2 MB. Max. memory is 8.0 GB. * Witness Printer took 69.35 ms. Allocated memory is still 152.0 MB. Free memory was 56.0 MB in the beginning and 53.3 MB in the end (delta: 2.6 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 17]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 17]: 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 2 specifications checked. All of them hold - InvariantResult [Line: 14]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 35]: Loop Invariant Derived loop invariant: ((((((0 <= z && x == 1) && 1 <= c) && y == 1) && cond == 1) && 0 <= k) && z <= 1) && k <= 1 - InvariantResult [Line: 38]: Loop Invariant Derived loop invariant: (((((((0 <= z && x == 1) && 1 == cond) && 1 <= c) && y == 1) && cond == 1) && 0 <= k) && z <= 1) && k <= 1 - InvariantResult [Line: 23]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 19 locations, 2 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 1.5s, OverallIterations: 3, TraceHistogramMax: 2, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 36 SDtfs, 26 SDslu, 29 SDs, 0 SdLazy, 33 SolverSat, 7 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 26 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=19occurred 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, 1 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 4 LocationsWithAnnotation, 4 PreInvPairs, 8 NumberOfFragments, 55 HoareAnnotationTreeSize, 4 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 4 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 30 NumberOfCodeBlocks, 30 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 27 ConstructedInterpolants, 0 QuantifiedInterpolants, 1267 SizeOfPredicates, 9 NumberOfNonLiveVariables, 136 ConjunctsInSsa, 22 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 2/2 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...