/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_valuebound2.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-bitabs-dcfa08f [2020-12-23 07:47:08,314 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-23 07:47:08,317 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-23 07:47:08,355 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-23 07:47:08,355 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-23 07:47:08,357 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-23 07:47:08,359 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-23 07:47:08,361 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-23 07:47:08,363 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-23 07:47:08,364 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-23 07:47:08,366 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-23 07:47:08,367 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-23 07:47:08,368 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-23 07:47:08,369 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-23 07:47:08,370 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-23 07:47:08,372 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-23 07:47:08,373 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-23 07:47:08,374 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-23 07:47:08,376 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-23 07:47:08,379 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-23 07:47:08,381 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-23 07:47:08,382 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-23 07:47:08,396 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-23 07:47:08,398 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-23 07:47:08,404 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-12-23 07:47:08,414 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-23 07:47:08,415 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-23 07:47:08,416 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-23 07:47:08,417 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-23 07:47:08,419 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-23 07:47:08,420 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-23 07:47:08,421 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-23 07:47:08,421 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-23 07:47:08,425 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-23 07:47:08,429 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-23 07:47:08,430 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-23 07:47:08,431 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2020-12-23 07:47:08,482 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-23 07:47:08,482 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-23 07:47:08,484 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-23 07:47:08,484 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-23 07:47:08,485 INFO L138 SettingsManager]: * Use SBE=true [2020-12-23 07:47:08,486 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-23 07:47:08,487 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-23 07:47:08,487 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-23 07:47:08,487 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-23 07:47:08,487 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-23 07:47:08,488 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-23 07:47:08,489 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-23 07:47:08,489 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-23 07:47:08,489 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-23 07:47:08,489 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-23 07:47:08,489 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-23 07:47:08,490 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-23 07:47:08,490 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-23 07:47:08,490 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-23 07:47:08,490 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-23 07:47:08,490 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-23 07:47:08,491 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-12-23 07:47:08,491 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-23 07:47:08,491 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-23 07:47:08,491 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-23 07:47:08,491 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-bitabs/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-12-23 07:47:08,877 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-23 07:47:08,927 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-23 07:47:08,930 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-23 07:47:08,931 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-23 07:47:08,932 INFO L275 PluginConnector]: CDTParser initialized [2020-12-23 07:47:08,933 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/nla-digbench-scaling/geo2-ll_valuebound2.c [2020-12-23 07:47:09,021 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/0733b4080/a39def8b7673454bb7e7cd0f9836f712/FLAGb5fd2d3fa [2020-12-23 07:47:09,596 INFO L306 CDTParser]: Found 1 translation units. [2020-12-23 07:47:09,596 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-bitabs/releaseScripts/default/sv-benchmarks/c/nla-digbench-scaling/geo2-ll_valuebound2.c [2020-12-23 07:47:09,604 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/0733b4080/a39def8b7673454bb7e7cd0f9836f712/FLAGb5fd2d3fa [2020-12-23 07:47:09,995 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/0733b4080/a39def8b7673454bb7e7cd0f9836f712 [2020-12-23 07:47:09,998 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-23 07:47:10,000 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-23 07:47:10,002 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-23 07:47:10,002 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-23 07:47:10,006 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-23 07:47:10,006 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.12 07:47:09" (1/1) ... [2020-12-23 07:47:10,008 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3f601149 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 07:47:10, skipping insertion in model container [2020-12-23 07:47:10,008 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.12 07:47:09" (1/1) ... [2020-12-23 07:47:10,017 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-23 07:47:10,039 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-23 07:47:10,175 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-bitabs/releaseScripts/default/sv-benchmarks/c/nla-digbench-scaling/geo2-ll_valuebound2.c[525,538] left hand side expression in assignment: lhs: VariableLHS[~z~0,] left hand side expression in assignment: lhs: VariableLHS[~k~0,] left hand side expression in assignment: lhs: VariableLHS[~x~0,] left hand side expression in assignment: lhs: VariableLHS[~y~0,] left hand side expression in assignment: lhs: VariableLHS[~c~0,] left hand side expression in assignment: lhs: VariableLHS[~c~0,] left hand side expression in assignment: lhs: VariableLHS[~x~0,] left hand side expression in assignment: lhs: VariableLHS[~y~0,] [2020-12-23 07:47:10,194 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-23 07:47:10,204 INFO L203 MainTranslator]: Completed pre-run [2020-12-23 07:47:10,219 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-bitabs/releaseScripts/default/sv-benchmarks/c/nla-digbench-scaling/geo2-ll_valuebound2.c[525,538] left hand side expression in assignment: lhs: VariableLHS[~z~0,] left hand side expression in assignment: lhs: VariableLHS[~k~0,] left hand side expression in assignment: lhs: VariableLHS[~x~0,] left hand side expression in assignment: lhs: VariableLHS[~y~0,] left hand side expression in assignment: lhs: VariableLHS[~c~0,] left hand side expression in assignment: lhs: VariableLHS[~c~0,] left hand side expression in assignment: lhs: VariableLHS[~x~0,] left hand side expression in assignment: lhs: VariableLHS[~y~0,] [2020-12-23 07:47:10,226 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-23 07:47:10,242 INFO L208 MainTranslator]: Completed translation [2020-12-23 07:47:10,243 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 07:47:10 WrapperNode [2020-12-23 07:47:10,243 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-23 07:47:10,244 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-23 07:47:10,245 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-23 07:47:10,245 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-23 07:47:10,254 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 07:47:10" (1/1) ... [2020-12-23 07:47:10,261 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 07:47:10" (1/1) ... [2020-12-23 07:47:10,283 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-23 07:47:10,284 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-23 07:47:10,284 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-23 07:47:10,284 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-23 07:47:10,294 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 07:47:10" (1/1) ... [2020-12-23 07:47:10,294 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 07:47:10" (1/1) ... [2020-12-23 07:47:10,296 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 07:47:10" (1/1) ... [2020-12-23 07:47:10,296 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 07:47:10" (1/1) ... [2020-12-23 07:47:10,300 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 07:47:10" (1/1) ... [2020-12-23 07:47:10,304 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 07:47:10" (1/1) ... [2020-12-23 07:47:10,306 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 07:47:10" (1/1) ... [2020-12-23 07:47:10,307 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-23 07:47:10,308 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-23 07:47:10,309 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-23 07:47:10,309 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-23 07:47:10,310 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 07:47:10" (1/1) ... No working directory specified, using /storage/repos/ultimate-bitabs/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 [2020-12-23 07:47:10,441 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-23 07:47:10,442 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-23 07:47:10,442 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-23 07:47:10,443 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-23 07:47:10,711 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-23 07:47:10,712 INFO L299 CfgBuilder]: Removed 13 assume(true) statements. [2020-12-23 07:47:10,714 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.12 07:47:10 BoogieIcfgContainer [2020-12-23 07:47:10,714 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-23 07:47:10,716 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-23 07:47:10,716 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-23 07:47:10,720 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-23 07:47:10,720 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.12 07:47:09" (1/3) ... [2020-12-23 07:47:10,722 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6b4c9cc1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.12 07:47:10, skipping insertion in model container [2020-12-23 07:47:10,722 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 07:47:10" (2/3) ... [2020-12-23 07:47:10,722 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6b4c9cc1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.12 07:47:10, skipping insertion in model container [2020-12-23 07:47:10,722 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.12 07:47:10" (3/3) ... [2020-12-23 07:47:10,724 INFO L111 eAbstractionObserver]: Analyzing ICFG geo2-ll_valuebound2.c [2020-12-23 07:47:10,732 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-23 07:47:10,744 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2020-12-23 07:47:10,788 INFO L253 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2020-12-23 07:47:10,847 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-23 07:47:10,848 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-23 07:47:10,848 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-23 07:47:10,848 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-23 07:47:10,848 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-23 07:47:10,848 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-23 07:47:10,848 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-23 07:47:10,849 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-23 07:47:10,865 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states. [2020-12-23 07:47:10,871 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-12-23 07:47:10,872 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 07:47:10,873 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 07:47:10,874 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 07:47:10,882 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 07:47:10,883 INFO L82 PathProgramCache]: Analyzing trace with hash -594062832, now seen corresponding path program 1 times [2020-12-23 07:47:10,892 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 07:47:10,893 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [149294807] [2020-12-23 07:47:10,893 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 07:47:11,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 07:47:11,061 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 07:47:11,062 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [149294807] [2020-12-23 07:47:11,064 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 07:47:11,064 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-23 07:47:11,065 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [649143498] [2020-12-23 07:47:11,071 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-12-23 07:47:11,072 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 07:47:11,091 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-12-23 07:47:11,093 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-12-23 07:47:11,096 INFO L87 Difference]: Start difference. First operand 19 states. Second operand 2 states. [2020-12-23 07:47:11,120 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 07:47:11,120 INFO L93 Difference]: Finished difference Result 35 states and 46 transitions. [2020-12-23 07:47:11,121 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-12-23 07:47:11,123 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 9 [2020-12-23 07:47:11,124 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 07:47:11,140 INFO L225 Difference]: With dead ends: 35 [2020-12-23 07:47:11,141 INFO L226 Difference]: Without dead ends: 15 [2020-12-23 07:47:11,155 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 [2020-12-23 07:47:11,177 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2020-12-23 07:47:11,191 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2020-12-23 07:47:11,193 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2020-12-23 07:47:11,194 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 15 transitions. [2020-12-23 07:47:11,195 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 15 transitions. Word has length 9 [2020-12-23 07:47:11,196 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 07:47:11,196 INFO L481 AbstractCegarLoop]: Abstraction has 15 states and 15 transitions. [2020-12-23 07:47:11,196 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-12-23 07:47:11,196 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 15 transitions. [2020-12-23 07:47:11,197 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-12-23 07:47:11,197 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 07:47:11,197 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 07:47:11,198 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-23 07:47:11,199 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 07:47:11,202 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 07:47:11,202 INFO L82 PathProgramCache]: Analyzing trace with hash 1182791572, now seen corresponding path program 1 times [2020-12-23 07:47:11,203 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 07:47:11,204 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [774249988] [2020-12-23 07:47:11,204 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 07:47:11,244 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-12-23 07:47:11,245 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1395208705] [2020-12-23 07:47:11,245 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate-bitabs/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 [2020-12-23 07:47:11,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 07:47:11,359 INFO L263 TraceCheckSpWp]: Trace formula consists of 62 conjuncts, 15 conjunts are in the unsatisfiable core [2020-12-23 07:47:11,366 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-23 07:47:11,613 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 07:47:11,614 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [774249988] [2020-12-23 07:47:11,614 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-12-23 07:47:11,614 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1395208705] [2020-12-23 07:47:11,615 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 07:47:11,615 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-12-23 07:47:11,615 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [895725606] [2020-12-23 07:47:11,616 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-23 07:47:11,617 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 07:47:11,617 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-23 07:47:11,618 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-12-23 07:47:11,618 INFO L87 Difference]: Start difference. First operand 15 states and 15 transitions. Second operand 6 states. [2020-12-23 07:47:11,798 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 07:47:11,799 INFO L93 Difference]: Finished difference Result 25 states and 25 transitions. [2020-12-23 07:47:11,800 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-12-23 07:47:11,800 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 9 [2020-12-23 07:47:11,800 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 07:47:11,801 INFO L225 Difference]: With dead ends: 25 [2020-12-23 07:47:11,801 INFO L226 Difference]: Without dead ends: 19 [2020-12-23 07:47:11,802 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 [2020-12-23 07:47:11,803 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2020-12-23 07:47:11,806 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 18. [2020-12-23 07:47:11,807 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2020-12-23 07:47:11,807 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 18 transitions. [2020-12-23 07:47:11,808 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 18 transitions. Word has length 9 [2020-12-23 07:47:11,808 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 07:47:11,808 INFO L481 AbstractCegarLoop]: Abstraction has 18 states and 18 transitions. [2020-12-23 07:47:11,808 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-12-23 07:47:11,808 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 18 transitions. [2020-12-23 07:47:11,809 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-12-23 07:47:11,809 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 07:47:11,809 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 07:47:12,022 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2020-12-23 07:47:12,023 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 07:47:12,024 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 07:47:12,025 INFO L82 PathProgramCache]: Analyzing trace with hash 636965506, now seen corresponding path program 1 times [2020-12-23 07:47:12,025 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 07:47:12,026 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1728532042] [2020-12-23 07:47:12,026 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 07:47:12,050 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-12-23 07:47:12,050 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [987641251] [2020-12-23 07:47:12,050 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate-bitabs/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 [2020-12-23 07:47:12,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 07:47:12,104 INFO L263 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 21 conjunts are in the unsatisfiable core [2020-12-23 07:47:12,106 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-23 07:47:12,217 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 07:47:12,217 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1728532042] [2020-12-23 07:47:12,217 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-12-23 07:47:12,218 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [987641251] [2020-12-23 07:47:12,218 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-12-23 07:47:12,218 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-12-23 07:47:12,218 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1749407685] [2020-12-23 07:47:12,219 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-12-23 07:47:12,219 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 07:47:12,220 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-12-23 07:47:12,220 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-12-23 07:47:12,220 INFO L87 Difference]: Start difference. First operand 18 states and 18 transitions. Second operand 7 states. [2020-12-23 07:47:12,380 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 07:47:12,380 INFO L93 Difference]: Finished difference Result 28 states and 28 transitions. [2020-12-23 07:47:12,381 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-12-23 07:47:12,381 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 12 [2020-12-23 07:47:12,381 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 07:47:12,382 INFO L225 Difference]: With dead ends: 28 [2020-12-23 07:47:12,382 INFO L226 Difference]: Without dead ends: 22 [2020-12-23 07:47:12,383 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2020-12-23 07:47:12,383 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2020-12-23 07:47:12,387 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 21. [2020-12-23 07:47:12,387 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2020-12-23 07:47:12,388 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 21 transitions. [2020-12-23 07:47:12,388 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 21 transitions. Word has length 12 [2020-12-23 07:47:12,389 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 07:47:12,389 INFO L481 AbstractCegarLoop]: Abstraction has 21 states and 21 transitions. [2020-12-23 07:47:12,389 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-12-23 07:47:12,389 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 21 transitions. [2020-12-23 07:47:12,390 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-12-23 07:47:12,390 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 07:47:12,390 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 07:47:12,603 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-23 07:47:12,604 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 07:47:12,605 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 07:47:12,606 INFO L82 PathProgramCache]: Analyzing trace with hash 678815956, now seen corresponding path program 2 times [2020-12-23 07:47:12,606 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 07:47:12,606 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1318963531] [2020-12-23 07:47:12,607 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 07:47:12,623 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-12-23 07:47:12,623 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1297468926] [2020-12-23 07:47:12,624 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-23 07:47:12,686 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2020-12-23 07:47:12,686 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-12-23 07:47:12,688 INFO L263 TraceCheckSpWp]: Trace formula consists of 86 conjuncts, 8 conjunts are in the unsatisfiable core [2020-12-23 07:47:12,691 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-23 07:47:12,832 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 07:47:12,833 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1318963531] [2020-12-23 07:47:12,833 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-12-23 07:47:12,833 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1297468926] [2020-12-23 07:47:12,834 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 07:47:12,834 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-12-23 07:47:12,834 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [547219587] [2020-12-23 07:47:12,835 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-23 07:47:12,835 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 07:47:12,836 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-23 07:47:12,836 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-12-23 07:47:12,836 INFO L87 Difference]: Start difference. First operand 21 states and 21 transitions. Second operand 6 states. [2020-12-23 07:47:13,041 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 07:47:13,042 INFO L93 Difference]: Finished difference Result 21 states and 21 transitions. [2020-12-23 07:47:13,042 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-12-23 07:47:13,042 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 15 [2020-12-23 07:47:13,042 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 07:47:13,043 INFO L225 Difference]: With dead ends: 21 [2020-12-23 07:47:13,043 INFO L226 Difference]: Without dead ends: 0 [2020-12-23 07:47:13,043 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2020-12-23 07:47:13,044 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-12-23 07:47:13,044 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-12-23 07:47:13,045 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-12-23 07:47:13,045 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-12-23 07:47:13,045 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 15 [2020-12-23 07:47:13,046 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 07:47:13,046 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-12-23 07:47:13,046 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-12-23 07:47:13,046 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-12-23 07:47:13,047 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-12-23 07:47:13,262 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-23 07:47:13,266 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-12-23 07:47:13,461 INFO L185 CegarLoopUtils]: At program point L35-2(lines 35 44) the Hoare annotation is: (let ((.cse0 (<= 0 ULTIMATE.start_main_~z~0)) (.cse1 (= ULTIMATE.start_assume_abort_if_not_~cond 1)) (.cse2 (<= 0 ULTIMATE.start_main_~k~0)) (.cse3 (<= ULTIMATE.start_main_~k~0 2)) (.cse4 (<= ULTIMATE.start_main_~z~0 2))) (or (and .cse0 (= ULTIMATE.start_main_~x~0 1) (<= 1 ULTIMATE.start_main_~c~0) (= ULTIMATE.start_main_~y~0 1) .cse1 .cse2 .cse3 .cse4) (and .cse0 (<= 2 ULTIMATE.start_main_~c~0) (= 1 ULTIMATE.start___VERIFIER_assert_~cond) (= ULTIMATE.start_main_~z~0 ULTIMATE.start_main_~y~0) .cse1 .cse2 .cse3 .cse4 (= ULTIMATE.start_main_~x~0 (+ ULTIMATE.start_main_~z~0 1))))) [2020-12-23 07:47:13,461 INFO L189 CegarLoopUtils]: For program point L35-3(lines 35 44) no Hoare annotation was computed. [2020-12-23 07:47:13,462 INFO L189 CegarLoopUtils]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION(line 17) no Hoare annotation was computed. [2020-12-23 07:47:13,462 INFO L189 CegarLoopUtils]: For program point L15(lines 15 18) no Hoare annotation was computed. [2020-12-23 07:47:13,463 INFO L185 CegarLoopUtils]: At program point L15-2(lines 38 39) the Hoare annotation is: (let ((.cse0 (<= 0 ULTIMATE.start_main_~z~0)) (.cse1 (= 1 ULTIMATE.start___VERIFIER_assert_~cond)) (.cse2 (= ULTIMATE.start_assume_abort_if_not_~cond 1)) (.cse3 (<= 0 ULTIMATE.start_main_~k~0)) (.cse4 (<= ULTIMATE.start_main_~k~0 2)) (.cse5 (<= ULTIMATE.start_main_~z~0 2))) (or (and .cse0 (= ULTIMATE.start_main_~x~0 1) .cse1 (<= 1 ULTIMATE.start_main_~c~0) (= ULTIMATE.start_main_~y~0 1) .cse2 .cse3 .cse4 .cse5) (and .cse0 (<= 2 ULTIMATE.start_main_~c~0) .cse1 (= ULTIMATE.start_main_~z~0 ULTIMATE.start_main_~y~0) .cse2 .cse3 .cse4 .cse5 (= ULTIMATE.start_main_~x~0 (+ ULTIMATE.start_main_~z~0 1))))) [2020-12-23 07:47:13,463 INFO L189 CegarLoopUtils]: For program point L15-3(lines 15 18) no Hoare annotation was computed. [2020-12-23 07:47:13,463 INFO L189 CegarLoopUtils]: For program point L11(lines 11 13) no Hoare annotation was computed. [2020-12-23 07:47:13,464 INFO L189 CegarLoopUtils]: For program point L11-1(lines 11 13) no Hoare annotation was computed. [2020-12-23 07:47:13,464 INFO L192 CegarLoopUtils]: At program point L15-5(lines 14 20) the Hoare annotation is: true [2020-12-23 07:47:13,464 INFO L189 CegarLoopUtils]: For program point L-1(line -1) no Hoare annotation was computed. [2020-12-23 07:47:13,464 INFO L189 CegarLoopUtils]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-12-23 07:47:13,464 INFO L189 CegarLoopUtils]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-12-23 07:47:13,464 INFO L189 CegarLoopUtils]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 17) no Hoare annotation was computed. [2020-12-23 07:47:13,465 INFO L189 CegarLoopUtils]: For program point L16(lines 16 17) no Hoare annotation was computed. [2020-12-23 07:47:13,465 INFO L189 CegarLoopUtils]: For program point L16-1(lines 16 17) no Hoare annotation was computed. [2020-12-23 07:47:13,465 INFO L189 CegarLoopUtils]: For program point L12(line 12) no Hoare annotation was computed. [2020-12-23 07:47:13,465 INFO L189 CegarLoopUtils]: For program point L12-2(line 12) no Hoare annotation was computed. [2020-12-23 07:47:13,465 INFO L189 CegarLoopUtils]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-12-23 07:47:13,466 INFO L192 CegarLoopUtils]: At program point L46(lines 23 47) the Hoare annotation is: true [2020-12-23 07:47:13,488 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.12 07:47:13 BoogieIcfgContainer [2020-12-23 07:47:13,489 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-12-23 07:47:13,489 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-23 07:47:13,489 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-23 07:47:13,489 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-23 07:47:13,490 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.12 07:47:10" (3/4) ... [2020-12-23 07:47:13,493 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-12-23 07:47:13,503 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2020-12-23 07:47:13,503 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2020-12-23 07:47:13,503 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-12-23 07:47:13,504 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-12-23 07:47:13,552 INFO L141 WitnessManager]: Wrote witness to /storage/repos/svcomp/c/nla-digbench-scaling/geo2-ll_valuebound2.c-witness.graphml [2020-12-23 07:47:13,552 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-23 07:47:13,554 INFO L168 Benchmark]: Toolchain (without parser) took 3552.99 ms. Allocated memory was 167.8 MB in the beginning and 221.2 MB in the end (delta: 53.5 MB). Free memory was 142.6 MB in the beginning and 181.6 MB in the end (delta: -39.0 MB). Peak memory consumption was 15.5 MB. Max. memory is 8.0 GB. [2020-12-23 07:47:13,555 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 167.8 MB. Free memory is still 141.0 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-12-23 07:47:13,555 INFO L168 Benchmark]: CACSL2BoogieTranslator took 241.99 ms. Allocated memory is still 167.8 MB. Free memory was 142.3 MB in the beginning and 132.6 MB in the end (delta: 9.6 MB). Peak memory consumption was 9.4 MB. Max. memory is 8.0 GB. [2020-12-23 07:47:13,556 INFO L168 Benchmark]: Boogie Procedure Inliner took 38.44 ms. Allocated memory is still 167.8 MB. Free memory was 132.6 MB in the beginning and 131.1 MB in the end (delta: 1.6 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2020-12-23 07:47:13,557 INFO L168 Benchmark]: Boogie Preprocessor took 24.11 ms. Allocated memory is still 167.8 MB. Free memory was 131.1 MB in the beginning and 130.0 MB in the end (delta: 1.0 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2020-12-23 07:47:13,558 INFO L168 Benchmark]: RCFGBuilder took 405.59 ms. Allocated memory is still 167.8 MB. Free memory was 130.0 MB in the beginning and 117.1 MB in the end (delta: 13.0 MB). Peak memory consumption was 12.6 MB. Max. memory is 8.0 GB. [2020-12-23 07:47:13,558 INFO L168 Benchmark]: TraceAbstraction took 2773.03 ms. Allocated memory was 167.8 MB in the beginning and 221.2 MB in the end (delta: 53.5 MB). Free memory was 116.6 MB in the beginning and 184.8 MB in the end (delta: -68.2 MB). There was no memory consumed. Max. memory is 8.0 GB. [2020-12-23 07:47:13,559 INFO L168 Benchmark]: Witness Printer took 62.79 ms. Allocated memory is still 221.2 MB. Free memory was 184.3 MB in the beginning and 181.6 MB in the end (delta: 2.6 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. [2020-12-23 07:47:13,563 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 167.8 MB. Free memory is still 141.0 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 241.99 ms. Allocated memory is still 167.8 MB. Free memory was 142.3 MB in the beginning and 132.6 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 38.44 ms. Allocated memory is still 167.8 MB. Free memory was 132.6 MB in the beginning and 131.1 MB in the end (delta: 1.6 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 24.11 ms. Allocated memory is still 167.8 MB. Free memory was 131.1 MB in the beginning and 130.0 MB in the end (delta: 1.0 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 405.59 ms. Allocated memory is still 167.8 MB. Free memory was 130.0 MB in the beginning and 117.1 MB in the end (delta: 13.0 MB). Peak memory consumption was 12.6 MB. Max. memory is 8.0 GB. * TraceAbstraction took 2773.03 ms. Allocated memory was 167.8 MB in the beginning and 221.2 MB in the end (delta: 53.5 MB). Free memory was 116.6 MB in the beginning and 184.8 MB in the end (delta: -68.2 MB). There was no memory consumed. Max. memory is 8.0 GB. * Witness Printer took 62.79 ms. Allocated memory is still 221.2 MB. Free memory was 184.3 MB in the beginning and 181.6 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) && k <= 2) && z <= 2) || ((((((((0 <= z && 2 <= c) && 1 == cond) && z == y) && cond == 1) && 0 <= k) && k <= 2) && z <= 2) && x == z + 1) - InvariantResult [Line: 38]: Loop Invariant Derived loop invariant: ((((((((0 <= z && x == 1) && 1 == cond) && 1 <= c) && y == 1) && cond == 1) && 0 <= k) && k <= 2) && z <= 2) || ((((((((0 <= z && 2 <= c) && 1 == cond) && z == y) && cond == 1) && 0 <= k) && k <= 2) && z <= 2) && x == z + 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: 2.4s, OverallIterations: 4, TraceHistogramMax: 3, AutomataDifference: 0.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.1s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 48 SDtfs, 46 SDslu, 62 SDs, 0 SdLazy, 74 SolverSat, 21 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 45 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=21occurred in iteration=3, 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, 4 MinimizatonAttempts, 2 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 4 LocationsWithAnnotation, 4 PreInvPairs, 10 NumberOfFragments, 117 HoareAnnotationTreeSize, 4 FomulaSimplifications, 18 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 4 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 45 NumberOfCodeBlocks, 45 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 41 ConstructedInterpolants, 0 QuantifiedInterpolants, 3004 SizeOfPredicates, 15 NumberOfNonLiveVariables, 222 ConjunctsInSsa, 44 ConjunctsInUnsatCore, 4 InterpolantComputations, 3 PerfectInterpolantSequences, 7/9 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...