/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/geo3-ll_valuebound2.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-4f750a8 [2020-12-22 05:26:14,020 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-22 05:26:14,023 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-22 05:26:14,059 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-22 05:26:14,060 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-22 05:26:14,061 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-22 05:26:14,063 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-22 05:26:14,078 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-22 05:26:14,082 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-22 05:26:14,087 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-22 05:26:14,089 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-22 05:26:14,091 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-22 05:26:14,092 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-22 05:26:14,095 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-22 05:26:14,096 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-22 05:26:14,098 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-22 05:26:14,103 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-22 05:26:14,104 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-22 05:26:14,112 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-22 05:26:14,117 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-22 05:26:14,121 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-22 05:26:14,123 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-22 05:26:14,124 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-22 05:26:14,125 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-22 05:26:14,128 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-12-22 05:26:14,135 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-22 05:26:14,136 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-22 05:26:14,138 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-22 05:26:14,139 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-22 05:26:14,140 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-22 05:26:14,140 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-22 05:26:14,141 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-22 05:26:14,141 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-22 05:26:14,141 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-22 05:26:14,142 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-22 05:26:14,143 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-22 05:26:14,144 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2020-12-22 05:26:14,196 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-22 05:26:14,196 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-22 05:26:14,200 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-22 05:26:14,201 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-22 05:26:14,201 INFO L138 SettingsManager]: * Use SBE=true [2020-12-22 05:26:14,201 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-22 05:26:14,201 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-22 05:26:14,201 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-22 05:26:14,202 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-22 05:26:14,202 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-22 05:26:14,203 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-22 05:26:14,203 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-22 05:26:14,203 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-22 05:26:14,203 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-22 05:26:14,204 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-22 05:26:14,204 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-22 05:26:14,204 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-22 05:26:14,204 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-22 05:26:14,204 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-22 05:26:14,205 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-22 05:26:14,205 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-22 05:26:14,205 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-12-22 05:26:14,205 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-22 05:26:14,205 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-22 05:26:14,205 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-22 05:26:14,206 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-12-22 05:26:14,588 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-22 05:26:14,619 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-22 05:26:14,622 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-22 05:26:14,624 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-22 05:26:14,624 INFO L275 PluginConnector]: CDTParser initialized [2020-12-22 05:26:14,625 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/nla-digbench-scaling/geo3-ll_valuebound2.c [2020-12-22 05:26:14,702 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0f3dcb1bb/1bf06d8353344004a0768f774a77363c/FLAGc60abe9b0 [2020-12-22 05:26:15,298 INFO L306 CDTParser]: Found 1 translation units. [2020-12-22 05:26:15,299 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/nla-digbench-scaling/geo3-ll_valuebound2.c [2020-12-22 05:26:15,307 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0f3dcb1bb/1bf06d8353344004a0768f774a77363c/FLAGc60abe9b0 [2020-12-22 05:26:15,640 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0f3dcb1bb/1bf06d8353344004a0768f774a77363c [2020-12-22 05:26:15,644 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-22 05:26:15,647 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-22 05:26:15,651 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-22 05:26:15,651 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-22 05:26:15,656 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-22 05:26:15,657 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 05:26:15" (1/1) ... [2020-12-22 05:26:15,660 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6d15a3f4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 05:26:15, skipping insertion in model container [2020-12-22 05:26:15,660 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 05:26:15" (1/1) ... [2020-12-22 05:26:15,668 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-22 05:26:15,689 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-22 05:26:15,889 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/nla-digbench-scaling/geo3-ll_valuebound2.c[525,538] [2020-12-22 05:26:15,906 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-22 05:26:15,916 INFO L203 MainTranslator]: Completed pre-run [2020-12-22 05:26:15,928 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/nla-digbench-scaling/geo3-ll_valuebound2.c[525,538] [2020-12-22 05:26:15,935 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-22 05:26:15,953 INFO L208 MainTranslator]: Completed translation [2020-12-22 05:26:15,953 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 05:26:15 WrapperNode [2020-12-22 05:26:15,954 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-22 05:26:15,955 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-22 05:26:15,955 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-22 05:26:15,955 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-22 05:26:15,964 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 05:26:15" (1/1) ... [2020-12-22 05:26:15,973 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 05:26:15" (1/1) ... [2020-12-22 05:26:15,996 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-22 05:26:15,997 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-22 05:26:15,997 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-22 05:26:15,998 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-22 05:26:16,008 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 05:26:15" (1/1) ... [2020-12-22 05:26:16,008 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 05:26:15" (1/1) ... [2020-12-22 05:26:16,010 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 05:26:15" (1/1) ... [2020-12-22 05:26:16,010 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 05:26:15" (1/1) ... [2020-12-22 05:26:16,014 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 05:26:15" (1/1) ... [2020-12-22 05:26:16,019 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 05:26:15" (1/1) ... [2020-12-22 05:26:16,020 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 05:26:15" (1/1) ... [2020-12-22 05:26:16,022 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-22 05:26:16,023 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-22 05:26:16,024 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-22 05:26:16,024 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-22 05:26:16,025 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 05:26:15" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-22 05:26:16,153 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-22 05:26:16,154 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-22 05:26:16,155 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-22 05:26:16,155 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-22 05:26:16,587 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-22 05:26:16,587 INFO L299 CfgBuilder]: Removed 15 assume(true) statements. [2020-12-22 05:26:16,589 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 05:26:16 BoogieIcfgContainer [2020-12-22 05:26:16,589 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-22 05:26:16,592 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-22 05:26:16,592 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-22 05:26:16,597 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-22 05:26:16,598 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.12 05:26:15" (1/3) ... [2020-12-22 05:26:16,599 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7e5a9280 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 05:26:16, skipping insertion in model container [2020-12-22 05:26:16,599 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 05:26:15" (2/3) ... [2020-12-22 05:26:16,599 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7e5a9280 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 05:26:16, skipping insertion in model container [2020-12-22 05:26:16,600 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 05:26:16" (3/3) ... [2020-12-22 05:26:16,605 INFO L111 eAbstractionObserver]: Analyzing ICFG geo3-ll_valuebound2.c [2020-12-22 05:26:16,621 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-22 05:26:16,630 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2020-12-22 05:26:16,676 INFO L253 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2020-12-22 05:26:16,782 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-22 05:26:16,782 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-22 05:26:16,782 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-22 05:26:16,782 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-22 05:26:16,783 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-22 05:26:16,783 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-22 05:26:16,783 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-22 05:26:16,783 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-22 05:26:16,814 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states. [2020-12-22 05:26:16,819 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-12-22 05:26:16,820 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 05:26:16,820 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 05:26:16,821 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 05:26:16,828 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 05:26:16,828 INFO L82 PathProgramCache]: Analyzing trace with hash 330581779, now seen corresponding path program 1 times [2020-12-22 05:26:16,838 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 05:26:16,839 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1601267273] [2020-12-22 05:26:16,839 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 05:26:16,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 05:26:16,997 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 05:26:16,998 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1601267273] [2020-12-22 05:26:16,999 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 05:26:16,999 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-22 05:26:17,000 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1450839736] [2020-12-22 05:26:17,004 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-12-22 05:26:17,005 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 05:26:17,020 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-12-22 05:26:17,021 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-12-22 05:26:17,023 INFO L87 Difference]: Start difference. First operand 21 states. Second operand 2 states. [2020-12-22 05:26:17,041 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 05:26:17,041 INFO L93 Difference]: Finished difference Result 39 states and 52 transitions. [2020-12-22 05:26:17,041 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-12-22 05:26:17,043 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 11 [2020-12-22 05:26:17,043 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 05:26:17,051 INFO L225 Difference]: With dead ends: 39 [2020-12-22 05:26:17,052 INFO L226 Difference]: Without dead ends: 17 [2020-12-22 05:26:17,055 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-12-22 05:26:17,073 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2020-12-22 05:26:17,087 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 17. [2020-12-22 05:26:17,089 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2020-12-22 05:26:17,089 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 17 transitions. [2020-12-22 05:26:17,091 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 17 transitions. Word has length 11 [2020-12-22 05:26:17,091 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 05:26:17,091 INFO L481 AbstractCegarLoop]: Abstraction has 17 states and 17 transitions. [2020-12-22 05:26:17,091 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-12-22 05:26:17,092 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 17 transitions. [2020-12-22 05:26:17,092 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-12-22 05:26:17,092 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 05:26:17,092 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 05:26:17,093 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-22 05:26:17,093 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 05:26:17,094 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 05:26:17,094 INFO L82 PathProgramCache]: Analyzing trace with hash -1507472743, now seen corresponding path program 1 times [2020-12-22 05:26:17,095 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 05:26:17,095 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [221885323] [2020-12-22 05:26:17,095 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 05:26:17,124 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-12-22 05:26:17,125 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1866782037] [2020-12-22 05:26:17,125 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 05:26:17,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 05:26:17,214 INFO L263 TraceCheckSpWp]: Trace formula consists of 73 conjuncts, 21 conjunts are in the unsatisfiable core [2020-12-22 05:26:17,219 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-22 05:26:17,374 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 05:26:17,375 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [221885323] [2020-12-22 05:26:17,375 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-12-22 05:26:17,375 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1866782037] [2020-12-22 05:26:17,375 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 05:26:17,376 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-12-22 05:26:17,376 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [465394168] [2020-12-22 05:26:17,377 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-22 05:26:17,377 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 05:26:17,378 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-22 05:26:17,379 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-12-22 05:26:17,379 INFO L87 Difference]: Start difference. First operand 17 states and 17 transitions. Second operand 6 states. [2020-12-22 05:26:17,490 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 05:26:17,490 INFO L93 Difference]: Finished difference Result 27 states and 27 transitions. [2020-12-22 05:26:17,491 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-12-22 05:26:17,491 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 11 [2020-12-22 05:26:17,491 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 05:26:17,492 INFO L225 Difference]: With dead ends: 27 [2020-12-22 05:26:17,492 INFO L226 Difference]: Without dead ends: 21 [2020-12-22 05:26:17,493 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2020-12-22 05:26:17,493 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2020-12-22 05:26:17,498 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 20. [2020-12-22 05:26:17,498 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2020-12-22 05:26:17,499 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 20 transitions. [2020-12-22 05:26:17,499 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 20 transitions. Word has length 11 [2020-12-22 05:26:17,499 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 05:26:17,500 INFO L481 AbstractCegarLoop]: Abstraction has 20 states and 20 transitions. [2020-12-22 05:26:17,500 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-12-22 05:26:17,500 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 20 transitions. [2020-12-22 05:26:17,500 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-12-22 05:26:17,501 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 05:26:17,501 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 05:26:17,715 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2020-12-22 05:26:17,716 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 05:26:17,718 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 05:26:17,718 INFO L82 PathProgramCache]: Analyzing trace with hash -937492348, now seen corresponding path program 1 times [2020-12-22 05:26:17,719 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 05:26:17,719 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [192004908] [2020-12-22 05:26:17,719 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 05:26:17,750 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-12-22 05:26:17,751 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1299333908] [2020-12-22 05:26:17,751 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 05:26:17,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 05:26:17,813 INFO L263 TraceCheckSpWp]: Trace formula consists of 85 conjuncts, 30 conjunts are in the unsatisfiable core [2020-12-22 05:26:17,815 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-22 05:26:18,029 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 05:26:18,030 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [192004908] [2020-12-22 05:26:18,030 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-12-22 05:26:18,030 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1299333908] [2020-12-22 05:26:18,031 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-12-22 05:26:18,031 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-12-22 05:26:18,031 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [256591942] [2020-12-22 05:26:18,032 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-12-22 05:26:18,032 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 05:26:18,033 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-12-22 05:26:18,033 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2020-12-22 05:26:18,034 INFO L87 Difference]: Start difference. First operand 20 states and 20 transitions. Second operand 8 states. [2020-12-22 05:26:18,218 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 05:26:18,218 INFO L93 Difference]: Finished difference Result 30 states and 30 transitions. [2020-12-22 05:26:18,218 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-12-22 05:26:18,219 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 14 [2020-12-22 05:26:18,219 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 05:26:18,220 INFO L225 Difference]: With dead ends: 30 [2020-12-22 05:26:18,220 INFO L226 Difference]: Without dead ends: 24 [2020-12-22 05:26:18,221 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2020-12-22 05:26:18,221 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2020-12-22 05:26:18,226 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 23. [2020-12-22 05:26:18,226 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2020-12-22 05:26:18,227 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 23 transitions. [2020-12-22 05:26:18,227 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 23 transitions. Word has length 14 [2020-12-22 05:26:18,228 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 05:26:18,228 INFO L481 AbstractCegarLoop]: Abstraction has 23 states and 23 transitions. [2020-12-22 05:26:18,228 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-12-22 05:26:18,228 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 23 transitions. [2020-12-22 05:26:18,229 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-12-22 05:26:18,229 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 05:26:18,229 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 05:26:18,443 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 05:26:18,444 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 05:26:18,446 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 05:26:18,446 INFO L82 PathProgramCache]: Analyzing trace with hash 1342734009, now seen corresponding path program 2 times [2020-12-22 05:26:18,447 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 05:26:18,447 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1720887935] [2020-12-22 05:26:18,447 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 05:26:18,465 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-12-22 05:26:18,465 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1806612423] [2020-12-22 05:26:18,466 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/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 [2020-12-22 05:26:18,529 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2020-12-22 05:26:18,529 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-12-22 05:26:18,530 INFO L263 TraceCheckSpWp]: Trace formula consists of 97 conjuncts, 8 conjunts are in the unsatisfiable core [2020-12-22 05:26:18,532 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-22 05:26:18,626 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 05:26:18,626 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1720887935] [2020-12-22 05:26:18,627 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-12-22 05:26:18,627 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1806612423] [2020-12-22 05:26:18,627 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 05:26:18,627 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-12-22 05:26:18,628 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [802155774] [2020-12-22 05:26:18,628 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-22 05:26:18,628 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 05:26:18,629 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-22 05:26:18,630 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-12-22 05:26:18,630 INFO L87 Difference]: Start difference. First operand 23 states and 23 transitions. Second operand 6 states. [2020-12-22 05:26:18,730 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 05:26:18,730 INFO L93 Difference]: Finished difference Result 23 states and 23 transitions. [2020-12-22 05:26:18,731 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-12-22 05:26:18,731 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 17 [2020-12-22 05:26:18,731 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 05:26:18,732 INFO L225 Difference]: With dead ends: 23 [2020-12-22 05:26:18,732 INFO L226 Difference]: Without dead ends: 0 [2020-12-22 05:26:18,733 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2020-12-22 05:26:18,733 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-12-22 05:26:18,733 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-12-22 05:26:18,733 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-12-22 05:26:18,733 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-12-22 05:26:18,734 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 17 [2020-12-22 05:26:18,734 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 05:26:18,734 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-12-22 05:26:18,734 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-12-22 05:26:18,734 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-12-22 05:26:18,734 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-12-22 05:26:18,948 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 05:26:18,953 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-12-22 05:26:19,155 INFO L189 CegarLoopUtils]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION(line 17) no Hoare annotation was computed. [2020-12-22 05:26:19,155 INFO L189 CegarLoopUtils]: For program point L15(lines 15 18) no Hoare annotation was computed. [2020-12-22 05:26:19,156 INFO L185 CegarLoopUtils]: At program point L15-2(lines 39 40) the Hoare annotation is: (let ((.cse7 (* ULTIMATE.start_main_~a~0 ULTIMATE.start_main_~z~0))) (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)) (.cse6 (= ULTIMATE.start_main_~az~0 .cse7))) (or (and .cse0 (= ULTIMATE.start_main_~a~0 ULTIMATE.start_main_~x~0) .cse1 (<= 1 ULTIMATE.start_main_~c~0) (= ULTIMATE.start_main_~y~0 1) .cse2 .cse3 .cse4 .cse5 .cse6) (and .cse0 (<= 2 ULTIMATE.start_main_~c~0) .cse1 (= ULTIMATE.start_main_~z~0 ULTIMATE.start_main_~y~0) .cse2 .cse3 .cse4 (= ULTIMATE.start_main_~x~0 (+ .cse7 ULTIMATE.start_main_~a~0)) .cse5 .cse6)))) [2020-12-22 05:26:19,156 INFO L189 CegarLoopUtils]: For program point L15-3(lines 15 18) no Hoare annotation was computed. [2020-12-22 05:26:19,156 INFO L189 CegarLoopUtils]: For program point L11(lines 11 13) no Hoare annotation was computed. [2020-12-22 05:26:19,156 INFO L189 CegarLoopUtils]: For program point L11-1(lines 11 13) no Hoare annotation was computed. [2020-12-22 05:26:19,157 INFO L192 CegarLoopUtils]: At program point L15-5(lines 14 20) the Hoare annotation is: true [2020-12-22 05:26:19,157 INFO L189 CegarLoopUtils]: For program point L11-2(lines 11 13) no Hoare annotation was computed. [2020-12-22 05:26:19,157 INFO L185 CegarLoopUtils]: At program point L36-2(lines 36 45) the Hoare annotation is: (let ((.cse1 (* ULTIMATE.start_main_~a~0 ULTIMATE.start_main_~z~0))) (let ((.cse0 (<= 0 ULTIMATE.start_main_~z~0)) (.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)) (.cse6 (= ULTIMATE.start_main_~az~0 .cse1))) (or (and .cse0 (<= 2 ULTIMATE.start_main_~c~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_~a~0 .cse1)) .cse2 .cse3 .cse4 .cse5 .cse6) (and .cse0 (= ULTIMATE.start_main_~a~0 ULTIMATE.start_main_~x~0) (<= 1 ULTIMATE.start_main_~c~0) (= ULTIMATE.start_main_~y~0 1) .cse2 .cse3 .cse4 .cse5 .cse6)))) [2020-12-22 05:26:19,157 INFO L189 CegarLoopUtils]: For program point L36-3(lines 36 45) no Hoare annotation was computed. [2020-12-22 05:26:19,158 INFO L189 CegarLoopUtils]: For program point L-1(line -1) no Hoare annotation was computed. [2020-12-22 05:26:19,158 INFO L189 CegarLoopUtils]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-12-22 05:26:19,158 INFO L189 CegarLoopUtils]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-12-22 05:26:19,158 INFO L189 CegarLoopUtils]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 17) no Hoare annotation was computed. [2020-12-22 05:26:19,158 INFO L189 CegarLoopUtils]: For program point L16(lines 16 17) no Hoare annotation was computed. [2020-12-22 05:26:19,158 INFO L189 CegarLoopUtils]: For program point L16-1(lines 16 17) no Hoare annotation was computed. [2020-12-22 05:26:19,159 INFO L189 CegarLoopUtils]: For program point L12(line 12) no Hoare annotation was computed. [2020-12-22 05:26:19,159 INFO L189 CegarLoopUtils]: For program point L12-2(line 12) no Hoare annotation was computed. [2020-12-22 05:26:19,159 INFO L189 CegarLoopUtils]: For program point L12-4(line 12) no Hoare annotation was computed. [2020-12-22 05:26:19,159 INFO L189 CegarLoopUtils]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-12-22 05:26:19,159 INFO L192 CegarLoopUtils]: At program point L47(lines 21 48) the Hoare annotation is: true [2020-12-22 05:26:19,180 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.12 05:26:19 BoogieIcfgContainer [2020-12-22 05:26:19,181 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-12-22 05:26:19,181 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-22 05:26:19,182 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-22 05:26:19,182 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-22 05:26:19,182 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 05:26:16" (3/4) ... [2020-12-22 05:26:19,186 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-12-22 05:26:19,198 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges [2020-12-22 05:26:19,199 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2020-12-22 05:26:19,199 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-12-22 05:26:19,199 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-12-22 05:26:19,252 INFO L141 WitnessManager]: Wrote witness to /storage/repos/svcomp/c/nla-digbench-scaling/geo3-ll_valuebound2.c-witness.graphml [2020-12-22 05:26:19,252 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-22 05:26:19,254 INFO L168 Benchmark]: Toolchain (without parser) took 3607.42 ms. Allocated memory was 175.1 MB in the beginning and 211.8 MB in the end (delta: 36.7 MB). Free memory was 150.1 MB in the beginning and 138.8 MB in the end (delta: 11.3 MB). Peak memory consumption was 48.4 MB. Max. memory is 8.0 GB. [2020-12-22 05:26:19,255 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 175.1 MB. Free memory is still 146.4 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-12-22 05:26:19,256 INFO L168 Benchmark]: CACSL2BoogieTranslator took 303.15 ms. Allocated memory is still 175.1 MB. Free memory was 149.8 MB in the beginning and 140.1 MB in the end (delta: 9.7 MB). Peak memory consumption was 9.4 MB. Max. memory is 8.0 GB. [2020-12-22 05:26:19,256 INFO L168 Benchmark]: Boogie Procedure Inliner took 41.64 ms. Allocated memory is still 175.1 MB. Free memory was 140.0 MB in the beginning and 138.5 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2020-12-22 05:26:19,257 INFO L168 Benchmark]: Boogie Preprocessor took 25.23 ms. Allocated memory is still 175.1 MB. Free memory was 138.5 MB in the beginning and 137.5 MB in the end (delta: 1.0 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2020-12-22 05:26:19,258 INFO L168 Benchmark]: RCFGBuilder took 566.35 ms. Allocated memory is still 175.1 MB. Free memory was 137.3 MB in the beginning and 123.8 MB in the end (delta: 13.4 MB). Peak memory consumption was 13.6 MB. Max. memory is 8.0 GB. [2020-12-22 05:26:19,259 INFO L168 Benchmark]: TraceAbstraction took 2589.13 ms. Allocated memory was 175.1 MB in the beginning and 211.8 MB in the end (delta: 36.7 MB). Free memory was 123.4 MB in the beginning and 141.9 MB in the end (delta: -18.5 MB). Peak memory consumption was 19.1 MB. Max. memory is 8.0 GB. [2020-12-22 05:26:19,259 INFO L168 Benchmark]: Witness Printer took 70.88 ms. Allocated memory is still 211.8 MB. Free memory was 141.9 MB in the beginning and 138.8 MB in the end (delta: 3.1 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. [2020-12-22 05:26:19,264 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 175.1 MB. Free memory is still 146.4 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 303.15 ms. Allocated memory is still 175.1 MB. Free memory was 149.8 MB in the beginning and 140.1 MB in the end (delta: 9.7 MB). Peak memory consumption was 9.4 MB. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 41.64 ms. Allocated memory is still 175.1 MB. Free memory was 140.0 MB in the beginning and 138.5 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 25.23 ms. Allocated memory is still 175.1 MB. Free memory was 138.5 MB in the beginning and 137.5 MB in the end (delta: 1.0 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 566.35 ms. Allocated memory is still 175.1 MB. Free memory was 137.3 MB in the beginning and 123.8 MB in the end (delta: 13.4 MB). Peak memory consumption was 13.6 MB. Max. memory is 8.0 GB. * TraceAbstraction took 2589.13 ms. Allocated memory was 175.1 MB in the beginning and 211.8 MB in the end (delta: 36.7 MB). Free memory was 123.4 MB in the beginning and 141.9 MB in the end (delta: -18.5 MB). Peak memory consumption was 19.1 MB. Max. memory is 8.0 GB. * Witness Printer took 70.88 ms. Allocated memory is still 211.8 MB. Free memory was 141.9 MB in the beginning and 138.8 MB in the end (delta: 3.1 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: 21]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 14]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 36]: Loop Invariant Derived loop invariant: (((((((((0 <= z && 2 <= c) && 1 == cond) && z == y) && x == a + a * z) && cond == 1) && 0 <= k) && k <= 2) && z <= 2) && az == a * z) || ((((((((0 <= z && a == x) && 1 <= c) && y == 1) && cond == 1) && 0 <= k) && k <= 2) && z <= 2) && az == a * z) - InvariantResult [Line: 39]: Loop Invariant Derived loop invariant: (((((((((0 <= z && a == x) && 1 == cond) && 1 <= c) && y == 1) && cond == 1) && 0 <= k) && k <= 2) && z <= 2) && az == a * z) || (((((((((0 <= z && 2 <= c) && 1 == cond) && z == y) && cond == 1) && 0 <= k) && k <= 2) && x == a * z + a) && z <= 2) && az == a * z) - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 21 locations, 2 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 2.1s, OverallIterations: 4, TraceHistogramMax: 3, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.2s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 54 SDtfs, 46 SDslu, 69 SDs, 0 SdLazy, 89 SolverSat, 19 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 50 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=23occurred 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, 141 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, 53 NumberOfCodeBlocks, 53 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 49 ConstructedInterpolants, 0 QuantifiedInterpolants, 4285 SizeOfPredicates, 21 NumberOfNonLiveVariables, 255 ConjunctsInSsa, 59 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...