/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_unwindbound1.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-bitabs-dcfa08f [2020-12-23 07:46:17,543 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-23 07:46:17,545 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-23 07:46:17,578 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-23 07:46:17,579 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-23 07:46:17,580 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-23 07:46:17,582 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-23 07:46:17,584 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-23 07:46:17,595 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-23 07:46:17,597 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-23 07:46:17,598 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-23 07:46:17,599 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-23 07:46:17,600 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-23 07:46:17,601 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-23 07:46:17,602 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-23 07:46:17,603 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-23 07:46:17,604 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-23 07:46:17,605 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-23 07:46:17,607 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-23 07:46:17,609 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-23 07:46:17,611 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-23 07:46:17,612 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-23 07:46:17,613 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-23 07:46:17,614 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-23 07:46:17,617 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-12-23 07:46:17,621 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-23 07:46:17,622 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-23 07:46:17,623 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-23 07:46:17,623 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-23 07:46:17,625 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-23 07:46:17,625 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-23 07:46:17,626 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-23 07:46:17,626 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-23 07:46:17,627 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-23 07:46:17,628 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-23 07:46:17,628 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-23 07:46:17,630 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 07:46:17,678 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-23 07:46:17,679 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-23 07:46:17,681 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-23 07:46:17,681 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-23 07:46:17,682 INFO L138 SettingsManager]: * Use SBE=true [2020-12-23 07:46:17,683 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-23 07:46:17,683 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-23 07:46:17,683 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-23 07:46:17,683 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-23 07:46:17,683 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-23 07:46:17,684 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-23 07:46:17,685 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-23 07:46:17,685 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-23 07:46:17,685 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-23 07:46:17,685 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-23 07:46:17,685 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-23 07:46:17,686 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-23 07:46:17,686 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-23 07:46:17,686 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-23 07:46:17,686 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-23 07:46:17,686 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-23 07:46:17,687 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-12-23 07:46:17,687 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-23 07:46:17,687 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-23 07:46:17,687 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-23 07:46:17,687 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-12-23 07:46:18,043 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-23 07:46:18,076 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-23 07:46:18,080 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-23 07:46:18,081 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-23 07:46:18,082 INFO L275 PluginConnector]: CDTParser initialized [2020-12-23 07:46:18,083 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/nla-digbench-scaling/geo2-ll_unwindbound1.c [2020-12-23 07:46:18,169 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/9979d9f49/52981cf897aa4e2d8e64ee70ec59beb4/FLAG1edf080d7 [2020-12-23 07:46:18,798 INFO L306 CDTParser]: Found 1 translation units. [2020-12-23 07:46:18,799 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-bitabs/releaseScripts/default/sv-benchmarks/c/nla-digbench-scaling/geo2-ll_unwindbound1.c [2020-12-23 07:46:18,809 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/9979d9f49/52981cf897aa4e2d8e64ee70ec59beb4/FLAG1edf080d7 [2020-12-23 07:46:19,157 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/9979d9f49/52981cf897aa4e2d8e64ee70ec59beb4 [2020-12-23 07:46:19,160 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-23 07:46:19,162 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-23 07:46:19,168 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-23 07:46:19,168 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-23 07:46:19,172 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-23 07:46:19,173 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.12 07:46:19" (1/1) ... [2020-12-23 07:46:19,175 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7052fab7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 07:46:19, skipping insertion in model container [2020-12-23 07:46:19,176 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.12 07:46:19" (1/1) ... [2020-12-23 07:46:19,183 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-23 07:46:19,200 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-23 07:46:19,375 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_unwindbound1.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 07:46:19,395 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-23 07:46:19,412 INFO L203 MainTranslator]: Completed pre-run [2020-12-23 07:46:19,426 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_unwindbound1.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 07:46:19,432 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-23 07:46:19,448 INFO L208 MainTranslator]: Completed translation [2020-12-23 07:46:19,449 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 07:46:19 WrapperNode [2020-12-23 07:46:19,449 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-23 07:46:19,450 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-23 07:46:19,450 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-23 07:46:19,450 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-23 07:46:19,459 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 07:46:19" (1/1) ... [2020-12-23 07:46:19,466 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 07:46:19" (1/1) ... [2020-12-23 07:46:19,486 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-23 07:46:19,486 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-23 07:46:19,487 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-23 07:46:19,487 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-23 07:46:19,495 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 07:46:19" (1/1) ... [2020-12-23 07:46:19,496 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 07:46:19" (1/1) ... [2020-12-23 07:46:19,497 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 07:46:19" (1/1) ... [2020-12-23 07:46:19,498 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 07:46:19" (1/1) ... [2020-12-23 07:46:19,501 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 07:46:19" (1/1) ... [2020-12-23 07:46:19,505 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 07:46:19" (1/1) ... [2020-12-23 07:46:19,507 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 07:46:19" (1/1) ... [2020-12-23 07:46:19,508 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-23 07:46:19,509 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-23 07:46:19,510 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-23 07:46:19,510 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-23 07:46:19,511 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 07:46:19" (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 07:46:19,600 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-23 07:46:19,601 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-23 07:46:19,601 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-23 07:46:19,601 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-23 07:46:19,829 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-23 07:46:19,829 INFO L299 CfgBuilder]: Removed 9 assume(true) statements. [2020-12-23 07:46:19,831 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.12 07:46:19 BoogieIcfgContainer [2020-12-23 07:46:19,832 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-23 07:46:19,833 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-23 07:46:19,833 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-23 07:46:19,837 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-23 07:46:19,837 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.12 07:46:19" (1/3) ... [2020-12-23 07:46:19,838 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@373574d8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.12 07:46:19, skipping insertion in model container [2020-12-23 07:46:19,838 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 07:46:19" (2/3) ... [2020-12-23 07:46:19,839 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@373574d8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.12 07:46:19, skipping insertion in model container [2020-12-23 07:46:19,839 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.12 07:46:19" (3/3) ... [2020-12-23 07:46:19,841 INFO L111 eAbstractionObserver]: Analyzing ICFG geo2-ll_unwindbound1.c [2020-12-23 07:46:19,848 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-23 07:46:19,852 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2020-12-23 07:46:19,874 INFO L253 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2020-12-23 07:46:19,961 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-23 07:46:19,961 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-23 07:46:19,961 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-23 07:46:19,962 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-23 07:46:19,962 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-23 07:46:19,967 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-23 07:46:19,967 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-23 07:46:19,967 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-23 07:46:20,032 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states. [2020-12-23 07:46:20,042 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2020-12-23 07:46:20,043 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 07:46:20,044 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2020-12-23 07:46:20,045 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 07:46:20,051 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 07:46:20,051 INFO L82 PathProgramCache]: Analyzing trace with hash 889571274, now seen corresponding path program 1 times [2020-12-23 07:46:20,062 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 07:46:20,063 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1832858328] [2020-12-23 07:46:20,063 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 07:46:20,171 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-12-23 07:46:20,172 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1200767155] [2020-12-23 07:46:20,172 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 07:46:20,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 07:46:20,278 INFO L263 TraceCheckSpWp]: Trace formula consists of 59 conjuncts, 10 conjunts are in the unsatisfiable core [2020-12-23 07:46:20,283 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-23 07:46:20,359 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 07:46:20,360 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1832858328] [2020-12-23 07:46:20,360 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-12-23 07:46:20,360 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1200767155] [2020-12-23 07:46:20,361 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 07:46:20,361 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-23 07:46:20,362 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1071858034] [2020-12-23 07:46:20,367 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-23 07:46:20,368 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 07:46:20,383 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-23 07:46:20,384 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-23 07:46:20,386 INFO L87 Difference]: Start difference. First operand 16 states. Second operand 4 states. [2020-12-23 07:46:20,472 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 07:46:20,472 INFO L93 Difference]: Finished difference Result 44 states and 58 transitions. [2020-12-23 07:46:20,473 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-23 07:46:20,475 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 6 [2020-12-23 07:46:20,475 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 07:46:20,484 INFO L225 Difference]: With dead ends: 44 [2020-12-23 07:46:20,485 INFO L226 Difference]: Without dead ends: 19 [2020-12-23 07:46:20,488 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-12-23 07:46:20,506 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2020-12-23 07:46:20,522 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 16. [2020-12-23 07:46:20,524 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2020-12-23 07:46:20,525 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 17 transitions. [2020-12-23 07:46:20,526 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 17 transitions. Word has length 6 [2020-12-23 07:46:20,526 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 07:46:20,526 INFO L481 AbstractCegarLoop]: Abstraction has 16 states and 17 transitions. [2020-12-23 07:46:20,527 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-23 07:46:20,527 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 17 transitions. [2020-12-23 07:46:20,527 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-12-23 07:46:20,527 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 07:46:20,528 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1] [2020-12-23 07:46:20,743 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2020-12-23 07:46:20,744 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 07:46:20,745 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 07:46:20,746 INFO L82 PathProgramCache]: Analyzing trace with hash 855725686, now seen corresponding path program 1 times [2020-12-23 07:46:20,746 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 07:46:20,746 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1920651454] [2020-12-23 07:46:20,746 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 07:46:20,764 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-12-23 07:46:20,764 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1456945388] [2020-12-23 07:46:20,765 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 07:46:20,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 07:46:20,837 INFO L263 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 5 conjunts are in the unsatisfiable core [2020-12-23 07:46:20,839 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-23 07:46:20,895 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 07:46:20,896 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1920651454] [2020-12-23 07:46:20,896 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-12-23 07:46:20,896 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1456945388] [2020-12-23 07:46:20,896 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-12-23 07:46:20,897 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4] total 4 [2020-12-23 07:46:20,897 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [750626278] [2020-12-23 07:46:20,898 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-23 07:46:20,898 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 07:46:20,899 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-23 07:46:20,900 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-12-23 07:46:20,900 INFO L87 Difference]: Start difference. First operand 16 states and 17 transitions. Second operand 5 states. [2020-12-23 07:46:20,922 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 07:46:20,922 INFO L93 Difference]: Finished difference Result 22 states and 23 transitions. [2020-12-23 07:46:20,922 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-23 07:46:20,923 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 10 [2020-12-23 07:46:20,923 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 07:46:20,923 INFO L225 Difference]: With dead ends: 22 [2020-12-23 07:46:20,923 INFO L226 Difference]: Without dead ends: 12 [2020-12-23 07:46:20,924 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-12-23 07:46:20,925 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states. [2020-12-23 07:46:20,927 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12. [2020-12-23 07:46:20,927 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2020-12-23 07:46:20,928 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 11 transitions. [2020-12-23 07:46:20,928 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 11 transitions. Word has length 10 [2020-12-23 07:46:20,928 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 07:46:20,928 INFO L481 AbstractCegarLoop]: Abstraction has 12 states and 11 transitions. [2020-12-23 07:46:20,928 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-23 07:46:20,929 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 11 transitions. [2020-12-23 07:46:20,929 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-12-23 07:46:20,929 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 07:46:20,929 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 07:46:21,142 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-23 07:46:21,143 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 07:46:21,145 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 07:46:21,145 INFO L82 PathProgramCache]: Analyzing trace with hash 757648847, now seen corresponding path program 1 times [2020-12-23 07:46:21,146 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 07:46:21,146 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [60845369] [2020-12-23 07:46:21,146 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 07:46:21,164 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-12-23 07:46:21,165 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1372098738] [2020-12-23 07:46:21,165 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 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 07:46:21,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 07:46:21,224 INFO L263 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 21 conjunts are in the unsatisfiable core [2020-12-23 07:46:21,225 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-23 07:46:21,305 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 07:46:21,306 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [60845369] [2020-12-23 07:46:21,306 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-12-23 07:46:21,306 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1372098738] [2020-12-23 07:46:21,307 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-12-23 07:46:21,307 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-12-23 07:46:21,307 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [465147354] [2020-12-23 07:46:21,308 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-23 07:46:21,308 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 07:46:21,309 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-23 07:46:21,309 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-12-23 07:46:21,309 INFO L87 Difference]: Start difference. First operand 12 states and 11 transitions. Second operand 6 states. [2020-12-23 07:46:21,342 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 07:46:21,342 INFO L93 Difference]: Finished difference Result 12 states and 11 transitions. [2020-12-23 07:46:21,343 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-23 07:46:21,343 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 11 [2020-12-23 07:46:21,344 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 07:46:21,344 INFO L225 Difference]: With dead ends: 12 [2020-12-23 07:46:21,344 INFO L226 Difference]: Without dead ends: 0 [2020-12-23 07:46:21,345 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-12-23 07:46:21,345 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-12-23 07:46:21,345 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-12-23 07:46:21,345 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-12-23 07:46:21,346 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-12-23 07:46:21,346 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 11 [2020-12-23 07:46:21,346 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 07:46:21,346 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-12-23 07:46:21,346 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-12-23 07:46:21,346 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-12-23 07:46:21,347 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-12-23 07:46:21,560 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-23 07:46:21,565 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-12-23 07:46:21,629 INFO L189 CegarLoopUtils]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-12-23 07:46:21,630 INFO L189 CegarLoopUtils]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION(line 17) no Hoare annotation was computed. [2020-12-23 07:46:21,630 INFO L189 CegarLoopUtils]: For program point L15(lines 15 18) no Hoare annotation was computed. [2020-12-23 07:46:21,631 INFO L185 CegarLoopUtils]: At program point L15-2(lines 37 38) the Hoare annotation is: (and (<= 1 ~counter~0) (= ULTIMATE.start_main_~x~0 1) (= 1 ULTIMATE.start___VERIFIER_assert_~cond) (= ULTIMATE.start_main_~y~0 1)) [2020-12-23 07:46:21,631 INFO L189 CegarLoopUtils]: For program point L15-3(lines 15 18) no Hoare annotation was computed. [2020-12-23 07:46:21,631 INFO L192 CegarLoopUtils]: At program point L15-5(lines 14 20) the Hoare annotation is: true [2020-12-23 07:46:21,631 INFO L189 CegarLoopUtils]: For program point L34-1(lines 34 43) no Hoare annotation was computed. [2020-12-23 07:46:21,631 INFO L189 CegarLoopUtils]: For program point L-1(line -1) no Hoare annotation was computed. [2020-12-23 07:46:21,632 INFO L185 CegarLoopUtils]: At program point L34-3(lines 34 43) the Hoare annotation is: (or (and (<= 1 ~counter~0) (= 1 ULTIMATE.start___VERIFIER_assert_~cond) (= ULTIMATE.start_main_~z~0 ULTIMATE.start_main_~y~0) (= ULTIMATE.start_main_~x~0 (+ ULTIMATE.start_main_~z~0 1))) (and (= ULTIMATE.start_main_~x~0 1) (= ULTIMATE.start_main_~y~0 1) (<= 0 ~counter~0))) [2020-12-23 07:46:21,632 INFO L189 CegarLoopUtils]: For program point L34-4(lines 34 43) no Hoare annotation was computed. [2020-12-23 07:46:21,632 INFO L189 CegarLoopUtils]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-12-23 07:46:21,632 INFO L189 CegarLoopUtils]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-12-23 07:46:21,632 INFO L189 CegarLoopUtils]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 17) no Hoare annotation was computed. [2020-12-23 07:46:21,632 INFO L189 CegarLoopUtils]: For program point L16(lines 16 17) no Hoare annotation was computed. [2020-12-23 07:46:21,633 INFO L189 CegarLoopUtils]: For program point L16-1(lines 16 17) no Hoare annotation was computed. [2020-12-23 07:46:21,633 INFO L192 CegarLoopUtils]: At program point L45(lines 24 46) the Hoare annotation is: true [2020-12-23 07:46:21,651 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.12 07:46:21 BoogieIcfgContainer [2020-12-23 07:46:21,651 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-12-23 07:46:21,652 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-23 07:46:21,652 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-23 07:46:21,652 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-23 07:46:21,653 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.12 07:46:19" (3/4) ... [2020-12-23 07:46:21,656 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-12-23 07:46:21,667 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2020-12-23 07:46:21,668 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2020-12-23 07:46:21,668 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-12-23 07:46:21,668 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-12-23 07:46:21,715 INFO L141 WitnessManager]: Wrote witness to /storage/repos/svcomp/c/nla-digbench-scaling/geo2-ll_unwindbound1.c-witness.graphml [2020-12-23 07:46:21,715 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-23 07:46:21,717 INFO L168 Benchmark]: Toolchain (without parser) took 2554.20 ms. Allocated memory is still 163.6 MB. Free memory was 138.3 MB in the beginning and 71.7 MB in the end (delta: 66.6 MB). Peak memory consumption was 66.3 MB. Max. memory is 8.0 GB. [2020-12-23 07:46:21,718 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 163.6 MB. Free memory was 135.7 MB in the beginning and 135.6 MB in the end (delta: 101.6 kB). There was no memory consumed. Max. memory is 8.0 GB. [2020-12-23 07:46:21,719 INFO L168 Benchmark]: CACSL2BoogieTranslator took 281.65 ms. Allocated memory is still 163.6 MB. Free memory was 138.1 MB in the beginning and 128.4 MB in the end (delta: 9.7 MB). Peak memory consumption was 10.5 MB. Max. memory is 8.0 GB. [2020-12-23 07:46:21,719 INFO L168 Benchmark]: Boogie Procedure Inliner took 35.83 ms. Allocated memory is still 163.6 MB. Free memory was 128.4 MB in the beginning and 127.0 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2020-12-23 07:46:21,720 INFO L168 Benchmark]: Boogie Preprocessor took 22.14 ms. Allocated memory is still 163.6 MB. Free memory was 127.0 MB in the beginning and 125.9 MB in the end (delta: 1.1 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2020-12-23 07:46:21,721 INFO L168 Benchmark]: RCFGBuilder took 322.26 ms. Allocated memory is still 163.6 MB. Free memory was 125.9 MB in the beginning and 113.1 MB in the end (delta: 12.8 MB). Peak memory consumption was 12.6 MB. Max. memory is 8.0 GB. [2020-12-23 07:46:21,722 INFO L168 Benchmark]: TraceAbstraction took 1818.08 ms. Allocated memory is still 163.6 MB. Free memory was 112.7 MB in the beginning and 74.4 MB in the end (delta: 38.3 MB). Peak memory consumption was 38.0 MB. Max. memory is 8.0 GB. [2020-12-23 07:46:21,722 INFO L168 Benchmark]: Witness Printer took 63.38 ms. Allocated memory is still 163.6 MB. Free memory was 74.4 MB in the beginning and 71.7 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2020-12-23 07:46:21,727 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 163.6 MB. Free memory was 135.7 MB in the beginning and 135.6 MB in the end (delta: 101.6 kB). There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 281.65 ms. Allocated memory is still 163.6 MB. Free memory was 138.1 MB in the beginning and 128.4 MB in the end (delta: 9.7 MB). Peak memory consumption was 10.5 MB. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 35.83 ms. Allocated memory is still 163.6 MB. Free memory was 128.4 MB in the beginning and 127.0 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 22.14 ms. Allocated memory is still 163.6 MB. Free memory was 127.0 MB in the beginning and 125.9 MB in the end (delta: 1.1 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 322.26 ms. Allocated memory is still 163.6 MB. Free memory was 125.9 MB in the beginning and 113.1 MB in the end (delta: 12.8 MB). Peak memory consumption was 12.6 MB. Max. memory is 8.0 GB. * TraceAbstraction took 1818.08 ms. Allocated memory is still 163.6 MB. Free memory was 112.7 MB in the beginning and 74.4 MB in the end (delta: 38.3 MB). Peak memory consumption was 38.0 MB. Max. memory is 8.0 GB. * Witness Printer took 63.38 ms. Allocated memory is still 163.6 MB. Free memory was 74.4 MB in the beginning and 71.7 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.1 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: 34]: Loop Invariant Derived loop invariant: (((1 <= counter && 1 == cond) && z == y) && x == z + 1) || ((x == 1 && y == 1) && 0 <= counter) - InvariantResult [Line: 14]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 37]: Loop Invariant Derived loop invariant: ((1 <= counter && x == 1) && 1 == cond) && y == 1 - InvariantResult [Line: 24]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 16 locations, 2 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 1.6s, OverallIterations: 3, TraceHistogramMax: 2, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 28 SDtfs, 27 SDslu, 43 SDs, 0 SdLazy, 35 SolverSat, 8 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 27 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=16occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 3 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 4 LocationsWithAnnotation, 4 PreInvPairs, 11 NumberOfFragments, 41 HoareAnnotationTreeSize, 4 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 4 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 27 NumberOfCodeBlocks, 27 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 24 ConstructedInterpolants, 0 QuantifiedInterpolants, 932 SizeOfPredicates, 11 NumberOfNonLiveVariables, 211 ConjunctsInSsa, 36 ConjunctsInUnsatCore, 3 InterpolantComputations, 1 PerfectInterpolantSequences, 2/5 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...