/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/dijkstra-u_unwindbound1.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-4f750a8 [2020-12-22 05:03:47,120 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-22 05:03:47,124 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-22 05:03:47,182 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-22 05:03:47,183 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-22 05:03:47,188 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-22 05:03:47,191 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-22 05:03:47,199 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-22 05:03:47,202 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-22 05:03:47,210 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-22 05:03:47,211 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-22 05:03:47,212 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-22 05:03:47,213 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-22 05:03:47,216 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-22 05:03:47,218 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-22 05:03:47,220 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-22 05:03:47,221 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-22 05:03:47,225 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-22 05:03:47,232 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-22 05:03:47,235 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-22 05:03:47,238 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-22 05:03:47,240 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-22 05:03:47,241 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-22 05:03:47,244 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-22 05:03:47,266 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-12-22 05:03:47,272 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-22 05:03:47,273 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-22 05:03:47,275 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-22 05:03:47,276 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-22 05:03:47,277 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-22 05:03:47,278 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-22 05:03:47,278 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-22 05:03:47,278 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-22 05:03:47,279 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-22 05:03:47,280 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-22 05:03:47,281 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-22 05:03:47,281 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2020-12-22 05:03:47,336 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-22 05:03:47,336 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-22 05:03:47,341 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-22 05:03:47,341 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-22 05:03:47,341 INFO L138 SettingsManager]: * Use SBE=true [2020-12-22 05:03:47,341 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-22 05:03:47,342 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-22 05:03:47,342 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-22 05:03:47,342 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-22 05:03:47,342 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-22 05:03:47,344 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-22 05:03:47,344 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-22 05:03:47,344 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-22 05:03:47,344 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-22 05:03:47,345 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-22 05:03:47,345 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-22 05:03:47,345 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-22 05:03:47,345 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-22 05:03:47,346 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-22 05:03:47,346 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-22 05:03:47,346 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-22 05:03:47,347 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-12-22 05:03:47,347 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-22 05:03:47,347 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-22 05:03:47,347 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-22 05:03:47,347 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-12-22 05:03:47,725 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-22 05:03:47,777 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-22 05:03:47,780 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-22 05:03:47,782 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-22 05:03:47,782 INFO L275 PluginConnector]: CDTParser initialized [2020-12-22 05:03:47,783 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/nla-digbench-scaling/dijkstra-u_unwindbound1.c [2020-12-22 05:03:47,872 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/666f61bcb/24623bb1e3e9470da989ba1b38ef0697/FLAG7622dffbc [2020-12-22 05:03:48,434 INFO L306 CDTParser]: Found 1 translation units. [2020-12-22 05:03:48,434 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/nla-digbench-scaling/dijkstra-u_unwindbound1.c [2020-12-22 05:03:48,448 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/666f61bcb/24623bb1e3e9470da989ba1b38ef0697/FLAG7622dffbc [2020-12-22 05:03:48,785 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/666f61bcb/24623bb1e3e9470da989ba1b38ef0697 [2020-12-22 05:03:48,788 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-22 05:03:48,791 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-22 05:03:48,795 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-22 05:03:48,796 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-22 05:03:48,801 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-22 05:03:48,802 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 05:03:48" (1/1) ... [2020-12-22 05:03:48,805 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@15fd6660 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 05:03:48, skipping insertion in model container [2020-12-22 05:03:48,805 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 05:03:48" (1/1) ... [2020-12-22 05:03:48,814 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-22 05:03:48,847 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-22 05:03:49,040 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/dijkstra-u_unwindbound1.c[525,538] [2020-12-22 05:03:49,088 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-22 05:03:49,107 INFO L203 MainTranslator]: Completed pre-run [2020-12-22 05:03:49,129 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/dijkstra-u_unwindbound1.c[525,538] [2020-12-22 05:03:49,163 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-22 05:03:49,182 INFO L208 MainTranslator]: Completed translation [2020-12-22 05:03:49,182 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 05:03:49 WrapperNode [2020-12-22 05:03:49,183 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-22 05:03:49,184 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-22 05:03:49,184 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-22 05:03:49,185 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-22 05:03:49,195 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 05:03:49" (1/1) ... [2020-12-22 05:03:49,204 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 05:03:49" (1/1) ... [2020-12-22 05:03:49,235 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-22 05:03:49,236 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-22 05:03:49,236 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-22 05:03:49,237 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-22 05:03:49,247 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 05:03:49" (1/1) ... [2020-12-22 05:03:49,248 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 05:03:49" (1/1) ... [2020-12-22 05:03:49,250 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 05:03:49" (1/1) ... [2020-12-22 05:03:49,251 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 05:03:49" (1/1) ... [2020-12-22 05:03:49,256 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 05:03:49" (1/1) ... [2020-12-22 05:03:49,262 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 05:03:49" (1/1) ... [2020-12-22 05:03:49,264 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 05:03:49" (1/1) ... [2020-12-22 05:03:49,267 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-22 05:03:49,268 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-22 05:03:49,268 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-22 05:03:49,268 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-22 05:03:49,270 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 05:03:49" (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 05:03:49,393 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-22 05:03:49,394 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-22 05:03:49,395 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-22 05:03:49,395 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-22 05:03:50,061 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-22 05:03:50,061 INFO L299 CfgBuilder]: Removed 26 assume(true) statements. [2020-12-22 05:03:50,063 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 05:03:50 BoogieIcfgContainer [2020-12-22 05:03:50,064 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-22 05:03:50,065 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-22 05:03:50,065 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-22 05:03:50,069 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-22 05:03:50,069 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.12 05:03:48" (1/3) ... [2020-12-22 05:03:50,070 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2e782429 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 05:03:50, skipping insertion in model container [2020-12-22 05:03:50,071 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 05:03:49" (2/3) ... [2020-12-22 05:03:50,071 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2e782429 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 05:03:50, skipping insertion in model container [2020-12-22 05:03:50,071 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 05:03:50" (3/3) ... [2020-12-22 05:03:50,073 INFO L111 eAbstractionObserver]: Analyzing ICFG dijkstra-u_unwindbound1.c [2020-12-22 05:03:50,080 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-22 05:03:50,085 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 9 error locations. [2020-12-22 05:03:50,107 INFO L253 AbstractCegarLoop]: Starting to check reachability of 9 error locations. [2020-12-22 05:03:50,135 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-22 05:03:50,135 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-22 05:03:50,135 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-22 05:03:50,135 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-22 05:03:50,136 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-22 05:03:50,136 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-22 05:03:50,136 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-22 05:03:50,136 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-22 05:03:50,154 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states. [2020-12-22 05:03:50,159 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-12-22 05:03:50,160 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 05:03:50,161 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 05:03:50,161 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 05:03:50,168 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 05:03:50,169 INFO L82 PathProgramCache]: Analyzing trace with hash -578123657, now seen corresponding path program 1 times [2020-12-22 05:03:50,179 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 05:03:50,180 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [535950863] [2020-12-22 05:03:50,180 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 05:03:50,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 05:03:50,366 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 05:03:50,367 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [535950863] [2020-12-22 05:03:50,368 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 05:03:50,368 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-22 05:03:50,369 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [195185351] [2020-12-22 05:03:50,374 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-12-22 05:03:50,374 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 05:03:50,388 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-12-22 05:03:50,389 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-12-22 05:03:50,391 INFO L87 Difference]: Start difference. First operand 50 states. Second operand 2 states. [2020-12-22 05:03:50,412 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 05:03:50,412 INFO L93 Difference]: Finished difference Result 97 states and 128 transitions. [2020-12-22 05:03:50,413 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-12-22 05:03:50,414 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 9 [2020-12-22 05:03:50,414 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 05:03:50,424 INFO L225 Difference]: With dead ends: 97 [2020-12-22 05:03:50,425 INFO L226 Difference]: Without dead ends: 46 [2020-12-22 05:03:50,428 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 05:03:50,448 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2020-12-22 05:03:50,465 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 46. [2020-12-22 05:03:50,467 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 46 states. [2020-12-22 05:03:50,468 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 50 transitions. [2020-12-22 05:03:50,470 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 50 transitions. Word has length 9 [2020-12-22 05:03:50,470 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 05:03:50,470 INFO L481 AbstractCegarLoop]: Abstraction has 46 states and 50 transitions. [2020-12-22 05:03:50,470 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-12-22 05:03:50,471 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 50 transitions. [2020-12-22 05:03:50,471 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-12-22 05:03:50,471 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 05:03:50,472 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 05:03:50,472 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-22 05:03:50,472 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 05:03:50,473 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 05:03:50,473 INFO L82 PathProgramCache]: Analyzing trace with hash -1987056657, now seen corresponding path program 1 times [2020-12-22 05:03:50,474 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 05:03:50,474 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [400737101] [2020-12-22 05:03:50,474 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 05:03:50,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 05:03:50,546 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 05:03:50,546 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [400737101] [2020-12-22 05:03:50,546 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 05:03:50,546 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 05:03:50,547 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [397001555] [2020-12-22 05:03:50,548 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-22 05:03:50,549 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 05:03:50,549 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-22 05:03:50,550 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-22 05:03:50,550 INFO L87 Difference]: Start difference. First operand 46 states and 50 transitions. Second operand 4 states. [2020-12-22 05:03:50,588 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 05:03:50,588 INFO L93 Difference]: Finished difference Result 87 states and 94 transitions. [2020-12-22 05:03:50,589 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-22 05:03:50,589 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 10 [2020-12-22 05:03:50,590 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 05:03:50,591 INFO L225 Difference]: With dead ends: 87 [2020-12-22 05:03:50,591 INFO L226 Difference]: Without dead ends: 48 [2020-12-22 05:03:50,592 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-22 05:03:50,593 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states. [2020-12-22 05:03:50,599 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 48. [2020-12-22 05:03:50,599 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 48 states. [2020-12-22 05:03:50,600 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 52 transitions. [2020-12-22 05:03:50,601 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 52 transitions. Word has length 10 [2020-12-22 05:03:50,601 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 05:03:50,601 INFO L481 AbstractCegarLoop]: Abstraction has 48 states and 52 transitions. [2020-12-22 05:03:50,601 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-22 05:03:50,601 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 52 transitions. [2020-12-22 05:03:50,602 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-12-22 05:03:50,602 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 05:03:50,602 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 05:03:50,602 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-12-22 05:03:50,603 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 05:03:50,603 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 05:03:50,604 INFO L82 PathProgramCache]: Analyzing trace with hash -1420419469, now seen corresponding path program 1 times [2020-12-22 05:03:50,604 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 05:03:50,604 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1994234277] [2020-12-22 05:03:50,604 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 05:03:50,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 05:03:50,689 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 05:03:50,689 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1994234277] [2020-12-22 05:03:50,690 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 05:03:50,690 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-22 05:03:50,690 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1093106781] [2020-12-22 05:03:50,691 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-22 05:03:50,691 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 05:03:50,692 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-22 05:03:50,692 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-12-22 05:03:50,693 INFO L87 Difference]: Start difference. First operand 48 states and 52 transitions. Second operand 5 states. [2020-12-22 05:03:50,742 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 05:03:50,742 INFO L93 Difference]: Finished difference Result 62 states and 66 transitions. [2020-12-22 05:03:50,743 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-22 05:03:50,743 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 11 [2020-12-22 05:03:50,743 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 05:03:50,744 INFO L225 Difference]: With dead ends: 62 [2020-12-22 05:03:50,744 INFO L226 Difference]: Without dead ends: 23 [2020-12-22 05:03:50,745 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-12-22 05:03:50,746 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2020-12-22 05:03:50,749 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 23. [2020-12-22 05:03:50,749 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2020-12-22 05:03:50,750 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 24 transitions. [2020-12-22 05:03:50,750 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 24 transitions. Word has length 11 [2020-12-22 05:03:50,750 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 05:03:50,750 INFO L481 AbstractCegarLoop]: Abstraction has 23 states and 24 transitions. [2020-12-22 05:03:50,750 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-22 05:03:50,751 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 24 transitions. [2020-12-22 05:03:50,751 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-12-22 05:03:50,751 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 05:03:50,751 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 05:03:50,752 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-12-22 05:03:50,752 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 05:03:50,753 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 05:03:50,753 INFO L82 PathProgramCache]: Analyzing trace with hash -1083313625, now seen corresponding path program 1 times [2020-12-22 05:03:50,753 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 05:03:50,754 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1905328839] [2020-12-22 05:03:50,754 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 05:03:50,776 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-12-22 05:03:50,779 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [346503058] [2020-12-22 05:03:50,780 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 05:03:50,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 05:03:50,900 INFO L263 TraceCheckSpWp]: Trace formula consists of 66 conjuncts, 15 conjunts are in the unsatisfiable core [2020-12-22 05:03:50,905 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-22 05:03:51,076 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 05:03:51,077 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1905328839] [2020-12-22 05:03:51,077 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-12-22 05:03:51,078 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [346503058] [2020-12-22 05:03:51,078 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 05:03:51,078 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-12-22 05:03:51,079 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1509453169] [2020-12-22 05:03:51,079 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-22 05:03:51,079 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 05:03:51,080 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-22 05:03:51,081 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-12-22 05:03:51,081 INFO L87 Difference]: Start difference. First operand 23 states and 24 transitions. Second operand 6 states. [2020-12-22 05:03:51,339 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 05:03:51,339 INFO L93 Difference]: Finished difference Result 23 states and 24 transitions. [2020-12-22 05:03:51,340 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-12-22 05:03:51,340 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 12 [2020-12-22 05:03:51,341 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 05:03:51,341 INFO L225 Difference]: With dead ends: 23 [2020-12-22 05:03:51,341 INFO L226 Difference]: Without dead ends: 17 [2020-12-22 05:03:51,342 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2020-12-22 05:03:51,343 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2020-12-22 05:03:51,346 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 17. [2020-12-22 05:03:51,346 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2020-12-22 05:03:51,347 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 18 transitions. [2020-12-22 05:03:51,347 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 18 transitions. Word has length 12 [2020-12-22 05:03:51,347 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 05:03:51,348 INFO L481 AbstractCegarLoop]: Abstraction has 17 states and 18 transitions. [2020-12-22 05:03:51,348 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-12-22 05:03:51,348 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 18 transitions. [2020-12-22 05:03:51,349 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-12-22 05:03:51,349 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 05:03:51,349 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 05:03:51,552 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 05:03:51,553 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 05:03:51,554 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 05:03:51,554 INFO L82 PathProgramCache]: Analyzing trace with hash -1682149110, now seen corresponding path program 1 times [2020-12-22 05:03:51,554 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 05:03:51,555 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [227869161] [2020-12-22 05:03:51,555 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 05:03:51,580 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-12-22 05:03:51,581 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [711097796] [2020-12-22 05:03:51,581 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 05:03:51,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 05:03:51,664 INFO L263 TraceCheckSpWp]: Trace formula consists of 71 conjuncts, 15 conjunts are in the unsatisfiable core [2020-12-22 05:03:51,668 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-22 05:03:51,847 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 05:03:51,848 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [227869161] [2020-12-22 05:03:51,848 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-12-22 05:03:51,848 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [711097796] [2020-12-22 05:03:51,848 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 05:03:51,849 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-12-22 05:03:51,849 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [567444085] [2020-12-22 05:03:51,849 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-22 05:03:51,850 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 05:03:51,850 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-22 05:03:51,851 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-12-22 05:03:51,851 INFO L87 Difference]: Start difference. First operand 17 states and 18 transitions. Second operand 6 states. [2020-12-22 05:03:52,024 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 05:03:52,024 INFO L93 Difference]: Finished difference Result 17 states and 18 transitions. [2020-12-22 05:03:52,025 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-12-22 05:03:52,025 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 14 [2020-12-22 05:03:52,025 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 05:03:52,025 INFO L225 Difference]: With dead ends: 17 [2020-12-22 05:03:52,025 INFO L226 Difference]: Without dead ends: 0 [2020-12-22 05:03:52,026 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2020-12-22 05:03:52,026 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-12-22 05:03:52,027 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-12-22 05:03:52,027 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-12-22 05:03:52,027 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-12-22 05:03:52,027 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 14 [2020-12-22 05:03:52,027 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 05:03:52,028 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-12-22 05:03:52,028 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-12-22 05:03:52,028 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-12-22 05:03:52,028 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-12-22 05:03:52,243 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 05:03:52,247 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-12-22 05:03:52,408 WARN L197 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 22 DAG size of output: 18 [2020-12-22 05:03:52,451 INFO L192 CegarLoopUtils]: At program point L60(lines 20 61) the Hoare annotation is: true [2020-12-22 05:03:52,451 INFO L189 CegarLoopUtils]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION(line 14) no Hoare annotation was computed. [2020-12-22 05:03:52,452 INFO L189 CegarLoopUtils]: For program point L52(lines 52 55) no Hoare annotation was computed. [2020-12-22 05:03:52,452 INFO L189 CegarLoopUtils]: For program point L52-2(lines 20 61) no Hoare annotation was computed. [2020-12-22 05:03:52,452 INFO L189 CegarLoopUtils]: For program point ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION(line 14) no Hoare annotation was computed. [2020-12-22 05:03:52,452 INFO L189 CegarLoopUtils]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-12-22 05:03:52,452 INFO L189 CegarLoopUtils]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-12-22 05:03:52,452 INFO L189 CegarLoopUtils]: For program point L12(lines 12 15) no Hoare annotation was computed. [2020-12-22 05:03:52,453 INFO L185 CegarLoopUtils]: At program point L12-2(lines 11 17) the Hoare annotation is: false [2020-12-22 05:03:52,453 INFO L189 CegarLoopUtils]: For program point L12-3(lines 12 15) no Hoare annotation was computed. [2020-12-22 05:03:52,453 INFO L185 CegarLoopUtils]: At program point L12-5(lines 11 17) the Hoare annotation is: false [2020-12-22 05:03:52,453 INFO L189 CegarLoopUtils]: For program point L12-6(lines 12 15) no Hoare annotation was computed. [2020-12-22 05:03:52,453 INFO L185 CegarLoopUtils]: At program point L12-8(lines 11 17) the Hoare annotation is: false [2020-12-22 05:03:52,453 INFO L189 CegarLoopUtils]: For program point L12-9(lines 12 15) no Hoare annotation was computed. [2020-12-22 05:03:52,454 INFO L185 CegarLoopUtils]: At program point L12-11(lines 11 17) the Hoare annotation is: false [2020-12-22 05:03:52,454 INFO L189 CegarLoopUtils]: For program point L12-12(lines 12 15) no Hoare annotation was computed. [2020-12-22 05:03:52,454 INFO L185 CegarLoopUtils]: At program point L12-14(lines 11 17) the Hoare annotation is: false [2020-12-22 05:03:52,454 INFO L189 CegarLoopUtils]: For program point L12-15(lines 12 15) no Hoare annotation was computed. [2020-12-22 05:03:52,454 INFO L185 CegarLoopUtils]: At program point L12-17(lines 46 47) the Hoare annotation is: false [2020-12-22 05:03:52,454 INFO L189 CegarLoopUtils]: For program point L12-18(lines 12 15) no Hoare annotation was computed. [2020-12-22 05:03:52,455 INFO L185 CegarLoopUtils]: At program point L12-20(lines 11 17) the Hoare annotation is: (and (<= 1 ~counter~0) (= ULTIMATE.start_main_~h~0 0) (= 1 ULTIMATE.start___VERIFIER_assert_~cond) (< (mod ULTIMATE.start_main_~n~0 4294967296) 1073741823) (= ULTIMATE.start_main_~n~0 ULTIMATE.start_main_~r~0) (= ULTIMATE.start_assume_abort_if_not_~cond 1) (= ULTIMATE.start_main_~p~0 0)) [2020-12-22 05:03:52,455 INFO L189 CegarLoopUtils]: For program point L12-21(lines 12 15) no Hoare annotation was computed. [2020-12-22 05:03:52,455 INFO L189 CegarLoopUtils]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION(line 14) no Hoare annotation was computed. [2020-12-22 05:03:52,455 INFO L185 CegarLoopUtils]: At program point L12-23(lines 11 17) the Hoare annotation is: (and (<= 1 ~counter~0) (= ULTIMATE.start_main_~h~0 0) (< (mod ULTIMATE.start_main_~n~0 4294967296) 1073741823) (= ULTIMATE.start_assume_abort_if_not_~cond 1) (= ULTIMATE.start_main_~p~0 0)) [2020-12-22 05:03:52,455 INFO L189 CegarLoopUtils]: For program point L12-24(lines 12 15) no Hoare annotation was computed. [2020-12-22 05:03:52,456 INFO L192 CegarLoopUtils]: At program point L12-26(lines 11 17) the Hoare annotation is: true [2020-12-22 05:03:52,456 INFO L189 CegarLoopUtils]: For program point L13(lines 13 14) no Hoare annotation was computed. [2020-12-22 05:03:52,456 INFO L189 CegarLoopUtils]: For program point L13-1(lines 13 14) no Hoare annotation was computed. [2020-12-22 05:03:52,456 INFO L189 CegarLoopUtils]: For program point L13-2(lines 13 14) no Hoare annotation was computed. [2020-12-22 05:03:52,456 INFO L189 CegarLoopUtils]: For program point L13-3(lines 13 14) no Hoare annotation was computed. [2020-12-22 05:03:52,456 INFO L189 CegarLoopUtils]: For program point L13-4(lines 13 14) no Hoare annotation was computed. [2020-12-22 05:03:52,457 INFO L189 CegarLoopUtils]: For program point L13-5(lines 13 14) no Hoare annotation was computed. [2020-12-22 05:03:52,457 INFO L189 CegarLoopUtils]: For program point L13-6(lines 13 14) no Hoare annotation was computed. [2020-12-22 05:03:52,457 INFO L189 CegarLoopUtils]: For program point L38(lines 38 56) no Hoare annotation was computed. [2020-12-22 05:03:52,457 INFO L189 CegarLoopUtils]: For program point L13-7(lines 13 14) no Hoare annotation was computed. [2020-12-22 05:03:52,457 INFO L189 CegarLoopUtils]: For program point L13-8(lines 13 14) no Hoare annotation was computed. [2020-12-22 05:03:52,457 INFO L189 CegarLoopUtils]: For program point L38-2(lines 38 56) no Hoare annotation was computed. [2020-12-22 05:03:52,458 INFO L189 CegarLoopUtils]: For program point ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION(line 14) no Hoare annotation was computed. [2020-12-22 05:03:52,458 INFO L189 CegarLoopUtils]: For program point L30-1(lines 30 35) no Hoare annotation was computed. [2020-12-22 05:03:52,458 INFO L185 CegarLoopUtils]: At program point L30-3(lines 30 35) the Hoare annotation is: (and (= ULTIMATE.start_main_~h~0 0) (< (mod ULTIMATE.start_main_~n~0 4294967296) 1073741823) (= ULTIMATE.start_main_~n~0 ULTIMATE.start_main_~r~0) (= ULTIMATE.start_assume_abort_if_not_~cond 1) (<= 0 ~counter~0) (= ULTIMATE.start_main_~p~0 0)) [2020-12-22 05:03:52,458 INFO L189 CegarLoopUtils]: For program point L31(lines 31 32) no Hoare annotation was computed. [2020-12-22 05:03:52,458 INFO L189 CegarLoopUtils]: For program point ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION(line 14) no Hoare annotation was computed. [2020-12-22 05:03:52,458 INFO L189 CegarLoopUtils]: For program point L-1(line -1) no Hoare annotation was computed. [2020-12-22 05:03:52,459 INFO L189 CegarLoopUtils]: For program point ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION(line 14) no Hoare annotation was computed. [2020-12-22 05:03:52,459 INFO L189 CegarLoopUtils]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 14) no Hoare annotation was computed. [2020-12-22 05:03:52,459 INFO L189 CegarLoopUtils]: For program point L8(lines 8 10) no Hoare annotation was computed. [2020-12-22 05:03:52,459 INFO L189 CegarLoopUtils]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-12-22 05:03:52,459 INFO L189 CegarLoopUtils]: For program point ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION(line 14) no Hoare annotation was computed. [2020-12-22 05:03:52,459 INFO L189 CegarLoopUtils]: For program point L9(line 9) no Hoare annotation was computed. [2020-12-22 05:03:52,460 INFO L189 CegarLoopUtils]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION(line 14) no Hoare annotation was computed. [2020-12-22 05:03:52,479 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.12 05:03:52 BoogieIcfgContainer [2020-12-22 05:03:52,479 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-12-22 05:03:52,480 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-22 05:03:52,480 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-22 05:03:52,481 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-22 05:03:52,481 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 05:03:50" (3/4) ... [2020-12-22 05:03:52,485 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-12-22 05:03:52,498 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 17 nodes and edges [2020-12-22 05:03:52,498 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2020-12-22 05:03:52,499 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-12-22 05:03:52,499 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-12-22 05:03:52,557 INFO L141 WitnessManager]: Wrote witness to /storage/repos/svcomp/c/nla-digbench-scaling/dijkstra-u_unwindbound1.c-witness.graphml [2020-12-22 05:03:52,557 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-22 05:03:52,558 INFO L168 Benchmark]: Toolchain (without parser) took 3768.20 ms. Allocated memory is still 158.3 MB. Free memory was 133.6 MB in the beginning and 98.7 MB in the end (delta: 34.9 MB). Peak memory consumption was 35.6 MB. Max. memory is 8.0 GB. [2020-12-22 05:03:52,559 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 158.3 MB. Free memory is still 131.9 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-12-22 05:03:52,560 INFO L168 Benchmark]: CACSL2BoogieTranslator took 388.06 ms. Allocated memory is still 158.3 MB. Free memory was 133.4 MB in the beginning and 122.3 MB in the end (delta: 11.2 MB). Peak memory consumption was 11.5 MB. Max. memory is 8.0 GB. [2020-12-22 05:03:52,560 INFO L168 Benchmark]: Boogie Procedure Inliner took 51.38 ms. Allocated memory is still 158.3 MB. Free memory was 122.1 MB in the beginning and 120.3 MB in the end (delta: 1.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2020-12-22 05:03:52,561 INFO L168 Benchmark]: Boogie Preprocessor took 30.85 ms. Allocated memory is still 158.3 MB. Free memory was 120.3 MB in the beginning and 119.0 MB in the end (delta: 1.2 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2020-12-22 05:03:52,562 INFO L168 Benchmark]: RCFGBuilder took 795.90 ms. Allocated memory is still 158.3 MB. Free memory was 119.0 MB in the beginning and 133.5 MB in the end (delta: -14.5 MB). Peak memory consumption was 14.9 MB. Max. memory is 8.0 GB. [2020-12-22 05:03:52,562 INFO L168 Benchmark]: TraceAbstraction took 2414.27 ms. Allocated memory is still 158.3 MB. Free memory was 133.5 MB in the beginning and 102.4 MB in the end (delta: 31.1 MB). Peak memory consumption was 32.2 MB. Max. memory is 8.0 GB. [2020-12-22 05:03:52,563 INFO L168 Benchmark]: Witness Printer took 77.02 ms. Allocated memory is still 158.3 MB. Free memory was 102.4 MB in the beginning and 98.7 MB in the end (delta: 3.7 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. [2020-12-22 05:03:52,566 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 158.3 MB. Free memory is still 131.9 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 388.06 ms. Allocated memory is still 158.3 MB. Free memory was 133.4 MB in the beginning and 122.3 MB in the end (delta: 11.2 MB). Peak memory consumption was 11.5 MB. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 51.38 ms. Allocated memory is still 158.3 MB. Free memory was 122.1 MB in the beginning and 120.3 MB in the end (delta: 1.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 30.85 ms. Allocated memory is still 158.3 MB. Free memory was 120.3 MB in the beginning and 119.0 MB in the end (delta: 1.2 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 795.90 ms. Allocated memory is still 158.3 MB. Free memory was 119.0 MB in the beginning and 133.5 MB in the end (delta: -14.5 MB). Peak memory consumption was 14.9 MB. Max. memory is 8.0 GB. * TraceAbstraction took 2414.27 ms. Allocated memory is still 158.3 MB. Free memory was 133.5 MB in the beginning and 102.4 MB in the end (delta: 31.1 MB). Peak memory consumption was 32.2 MB. Max. memory is 8.0 GB. * Witness Printer took 77.02 ms. Allocated memory is still 158.3 MB. Free memory was 102.4 MB in the beginning and 98.7 MB in the end (delta: 3.7 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: 14]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 14]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 14]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 14]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 14]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 14]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 14]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 14]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 14]: 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 9 specifications checked. All of them hold - InvariantResult [Line: 11]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 11]: Loop Invariant Derived loop invariant: (((1 <= counter && h == 0) && n % 4294967296 < 1073741823) && cond == 1) && p == 0 - InvariantResult [Line: 46]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 30]: Loop Invariant Derived loop invariant: ((((h == 0 && n % 4294967296 < 1073741823) && n == r) && cond == 1) && 0 <= counter) && p == 0 - InvariantResult [Line: 11]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 20]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 11]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 11]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 11]: Loop Invariant Derived loop invariant: (((((1 <= counter && h == 0) && 1 == cond) && n % 4294967296 < 1073741823) && n == r) && cond == 1) && p == 0 - InvariantResult [Line: 11]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 11]: Loop Invariant Derived loop invariant: 0 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 50 locations, 9 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 2.1s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.2s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 139 SDtfs, 92 SDslu, 129 SDs, 0 SdLazy, 49 SolverSat, 10 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 40 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=50occurred 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, 5 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 11 LocationsWithAnnotation, 11 PreInvPairs, 17 NumberOfFragments, 71 HoareAnnotationTreeSize, 11 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 11 FomulaSimplificationsInter, 25 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 56 NumberOfCodeBlocks, 56 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 51 ConstructedInterpolants, 0 QuantifiedInterpolants, 3231 SizeOfPredicates, 13 NumberOfNonLiveVariables, 137 ConjunctsInSsa, 30 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 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...