/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_valuebound1.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-4f750a8 [2020-12-22 05:25:43,347 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-22 05:25:43,350 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-22 05:25:43,393 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-22 05:25:43,394 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-22 05:25:43,399 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-22 05:25:43,402 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-22 05:25:43,411 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-22 05:25:43,414 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-22 05:25:43,421 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-22 05:25:43,422 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-22 05:25:43,424 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-22 05:25:43,424 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-22 05:25:43,428 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-22 05:25:43,430 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-22 05:25:43,433 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-22 05:25:43,448 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-22 05:25:43,450 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-22 05:25:43,452 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-22 05:25:43,454 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-22 05:25:43,456 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-22 05:25:43,457 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-22 05:25:43,459 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-22 05:25:43,460 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-22 05:25:43,463 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-12-22 05:25:43,473 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-22 05:25:43,474 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-22 05:25:43,475 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-22 05:25:43,476 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2020-12-22 05:25:43,505 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-22 05:25:43,506 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-22 05:25:43,507 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-22 05:25:43,508 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-22 05:25:43,508 INFO L138 SettingsManager]: * Use SBE=true [2020-12-22 05:25:43,508 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-22 05:25:43,508 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-22 05:25:43,508 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-22 05:25:43,509 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-22 05:25:43,509 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-22 05:25:43,509 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-22 05:25:43,509 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-22 05:25:43,509 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-22 05:25:43,510 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-22 05:25:43,510 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-22 05:25:43,510 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-22 05:25:43,510 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-22 05:25:43,510 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-22 05:25:43,511 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-22 05:25:43,511 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-22 05:25:43,511 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-22 05:25:43,511 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-12-22 05:25:43,512 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-22 05:25:43,512 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-22 05:25:43,512 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-22 05:25:43,512 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-12-22 05:25:43,878 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-22 05:25:43,922 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-22 05:25:43,925 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-22 05:25:43,926 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-22 05:25:43,927 INFO L275 PluginConnector]: CDTParser initialized [2020-12-22 05:25:43,928 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/nla-digbench-scaling/geo3-ll_valuebound1.c [2020-12-22 05:25:44,016 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fd164c9b5/9c3fb5279883476bb5d14a8fa2017e95/FLAG9b1197e8c [2020-12-22 05:25:44,673 INFO L306 CDTParser]: Found 1 translation units. [2020-12-22 05:25:44,674 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/nla-digbench-scaling/geo3-ll_valuebound1.c [2020-12-22 05:25:44,681 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fd164c9b5/9c3fb5279883476bb5d14a8fa2017e95/FLAG9b1197e8c [2020-12-22 05:25:45,050 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fd164c9b5/9c3fb5279883476bb5d14a8fa2017e95 [2020-12-22 05:25:45,053 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-22 05:25:45,055 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-22 05:25:45,059 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-22 05:25:45,060 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-22 05:25:45,064 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-22 05:25:45,065 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 05:25:45" (1/1) ... [2020-12-22 05:25:45,066 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@44431836 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 05:25:45, skipping insertion in model container [2020-12-22 05:25:45,066 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 05:25:45" (1/1) ... [2020-12-22 05:25:45,076 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-22 05:25:45,096 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-22 05:25:45,238 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_valuebound1.c[525,538] [2020-12-22 05:25:45,255 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-22 05:25:45,265 INFO L203 MainTranslator]: Completed pre-run [2020-12-22 05:25:45,280 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_valuebound1.c[525,538] [2020-12-22 05:25:45,287 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-22 05:25:45,304 INFO L208 MainTranslator]: Completed translation [2020-12-22 05:25:45,304 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 05:25:45 WrapperNode [2020-12-22 05:25:45,304 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-22 05:25:45,306 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-22 05:25:45,306 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-22 05:25:45,306 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-22 05:25:45,315 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 05:25:45" (1/1) ... [2020-12-22 05:25:45,323 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 05:25:45" (1/1) ... [2020-12-22 05:25:45,349 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-22 05:25:45,350 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-22 05:25:45,350 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-22 05:25:45,350 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-22 05:25:45,360 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 05:25:45" (1/1) ... [2020-12-22 05:25:45,360 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 05:25:45" (1/1) ... [2020-12-22 05:25:45,362 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 05:25:45" (1/1) ... [2020-12-22 05:25:45,362 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 05:25:45" (1/1) ... [2020-12-22 05:25:45,367 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 05:25:45" (1/1) ... [2020-12-22 05:25:45,371 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 05:25:45" (1/1) ... [2020-12-22 05:25:45,373 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 05:25:45" (1/1) ... [2020-12-22 05:25:45,376 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-22 05:25:45,377 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-22 05:25:45,377 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-22 05:25:45,377 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-22 05:25:45,378 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 05:25:45" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-22 05:25:45,498 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-22 05:25:45,499 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-22 05:25:45,499 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-22 05:25:45,499 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-22 05:25:45,877 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-22 05:25:45,877 INFO L299 CfgBuilder]: Removed 15 assume(true) statements. [2020-12-22 05:25:45,883 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 05:25:45 BoogieIcfgContainer [2020-12-22 05:25:45,883 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-22 05:25:45,889 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-22 05:25:45,889 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-22 05:25:45,898 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-22 05:25:45,899 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.12 05:25:45" (1/3) ... [2020-12-22 05:25:45,900 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6fd312f6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 05:25:45, skipping insertion in model container [2020-12-22 05:25:45,900 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 05:25:45" (2/3) ... [2020-12-22 05:25:45,901 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6fd312f6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 05:25:45, skipping insertion in model container [2020-12-22 05:25:45,901 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 05:25:45" (3/3) ... [2020-12-22 05:25:45,906 INFO L111 eAbstractionObserver]: Analyzing ICFG geo3-ll_valuebound1.c [2020-12-22 05:25:45,921 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-22 05:25:45,932 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2020-12-22 05:25:45,966 INFO L253 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2020-12-22 05:25:45,997 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-22 05:25:45,997 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-22 05:25:45,998 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-22 05:25:45,998 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-22 05:25:45,998 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-22 05:25:45,998 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-22 05:25:45,998 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-22 05:25:45,998 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-22 05:25:46,015 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states. [2020-12-22 05:25:46,020 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-12-22 05:25:46,020 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 05:25:46,021 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 05:25:46,022 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 05:25:46,028 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 05:25:46,028 INFO L82 PathProgramCache]: Analyzing trace with hash 330581779, now seen corresponding path program 1 times [2020-12-22 05:25:46,040 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 05:25:46,041 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1277356434] [2020-12-22 05:25:46,041 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 05:25:46,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 05:25:46,221 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 05:25:46,222 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1277356434] [2020-12-22 05:25:46,222 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 05:25:46,223 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-22 05:25:46,224 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1179484133] [2020-12-22 05:25:46,228 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-12-22 05:25:46,229 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 05:25:46,243 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-12-22 05:25:46,244 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-12-22 05:25:46,247 INFO L87 Difference]: Start difference. First operand 21 states. Second operand 2 states. [2020-12-22 05:25:46,280 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 05:25:46,281 INFO L93 Difference]: Finished difference Result 39 states and 52 transitions. [2020-12-22 05:25:46,281 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-12-22 05:25:46,282 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 11 [2020-12-22 05:25:46,283 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 05:25:46,304 INFO L225 Difference]: With dead ends: 39 [2020-12-22 05:25:46,309 INFO L226 Difference]: Without dead ends: 17 [2020-12-22 05:25:46,314 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 05:25:46,336 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2020-12-22 05:25:46,353 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 17. [2020-12-22 05:25:46,355 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2020-12-22 05:25:46,358 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 17 transitions. [2020-12-22 05:25:46,360 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 17 transitions. Word has length 11 [2020-12-22 05:25:46,360 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 05:25:46,360 INFO L481 AbstractCegarLoop]: Abstraction has 17 states and 17 transitions. [2020-12-22 05:25:46,361 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-12-22 05:25:46,361 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 17 transitions. [2020-12-22 05:25:46,362 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-12-22 05:25:46,362 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 05:25:46,363 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 05:25:46,364 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-22 05:25:46,364 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 05:25:46,368 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 05:25:46,368 INFO L82 PathProgramCache]: Analyzing trace with hash -1507472743, now seen corresponding path program 1 times [2020-12-22 05:25:46,369 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 05:25:46,370 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1541306805] [2020-12-22 05:25:46,371 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 05:25:46,433 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-12-22 05:25:46,434 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [862461351] [2020-12-22 05:25:46,434 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 05:25:46,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 05:25:46,559 INFO L263 TraceCheckSpWp]: Trace formula consists of 73 conjuncts, 21 conjunts are in the unsatisfiable core [2020-12-22 05:25:46,570 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-22 05:25:46,811 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 05:25:46,812 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1541306805] [2020-12-22 05:25:46,812 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-12-22 05:25:46,812 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [862461351] [2020-12-22 05:25:46,813 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 05:25:46,813 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-12-22 05:25:46,813 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1851715293] [2020-12-22 05:25:46,815 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-22 05:25:46,815 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 05:25:46,826 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-22 05:25:46,826 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-12-22 05:25:46,827 INFO L87 Difference]: Start difference. First operand 17 states and 17 transitions. Second operand 6 states. [2020-12-22 05:25:47,014 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 05:25:47,015 INFO L93 Difference]: Finished difference Result 27 states and 27 transitions. [2020-12-22 05:25:47,015 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-12-22 05:25:47,015 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 11 [2020-12-22 05:25:47,016 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 05:25:47,017 INFO L225 Difference]: With dead ends: 27 [2020-12-22 05:25:47,018 INFO L226 Difference]: Without dead ends: 21 [2020-12-22 05:25:47,019 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 05:25:47,020 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2020-12-22 05:25:47,028 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 20. [2020-12-22 05:25:47,029 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2020-12-22 05:25:47,030 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 20 transitions. [2020-12-22 05:25:47,030 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 20 transitions. Word has length 11 [2020-12-22 05:25:47,031 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 05:25:47,033 INFO L481 AbstractCegarLoop]: Abstraction has 20 states and 20 transitions. [2020-12-22 05:25:47,033 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-12-22 05:25:47,033 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 20 transitions. [2020-12-22 05:25:47,034 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-12-22 05:25:47,034 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 05:25:47,034 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 05:25:47,238 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2020-12-22 05:25:47,239 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 05:25:47,240 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 05:25:47,241 INFO L82 PathProgramCache]: Analyzing trace with hash -937492348, now seen corresponding path program 1 times [2020-12-22 05:25:47,241 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 05:25:47,242 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [168048854] [2020-12-22 05:25:47,242 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 05:25:47,261 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-12-22 05:25:47,261 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1632896373] [2020-12-22 05:25:47,262 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 05:25:47,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 05:25:47,321 INFO L263 TraceCheckSpWp]: Trace formula consists of 85 conjuncts, 7 conjunts are in the unsatisfiable core [2020-12-22 05:25:47,322 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-22 05:25:47,400 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 05:25:47,401 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [168048854] [2020-12-22 05:25:47,401 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-12-22 05:25:47,401 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1632896373] [2020-12-22 05:25:47,401 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 05:25:47,402 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-22 05:25:47,402 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1646923485] [2020-12-22 05:25:47,402 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-22 05:25:47,403 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 05:25:47,403 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-22 05:25:47,404 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-12-22 05:25:47,404 INFO L87 Difference]: Start difference. First operand 20 states and 20 transitions. Second operand 5 states. [2020-12-22 05:25:47,473 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 05:25:47,473 INFO L93 Difference]: Finished difference Result 20 states and 20 transitions. [2020-12-22 05:25:47,473 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-22 05:25:47,474 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 14 [2020-12-22 05:25:47,474 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 05:25:47,474 INFO L225 Difference]: With dead ends: 20 [2020-12-22 05:25:47,474 INFO L226 Difference]: Without dead ends: 0 [2020-12-22 05:25:47,475 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-12-22 05:25:47,475 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-12-22 05:25:47,476 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-12-22 05:25:47,476 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-12-22 05:25:47,476 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-12-22 05:25:47,476 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 14 [2020-12-22 05:25:47,476 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 05:25:47,477 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-12-22 05:25:47,477 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-22 05:25:47,477 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-12-22 05:25:47,477 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-12-22 05:25:47,691 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 05:25:47,695 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-12-22 05:25:47,777 INFO L189 CegarLoopUtils]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION(line 17) no Hoare annotation was computed. [2020-12-22 05:25:47,778 INFO L189 CegarLoopUtils]: For program point L15(lines 15 18) no Hoare annotation was computed. [2020-12-22 05:25:47,778 INFO L185 CegarLoopUtils]: At program point L15-2(lines 39 40) the Hoare annotation is: (and (<= 0 ULTIMATE.start_main_~z~0) (= ULTIMATE.start_main_~a~0 ULTIMATE.start_main_~x~0) (= 1 ULTIMATE.start___VERIFIER_assert_~cond) (<= 1 ULTIMATE.start_main_~c~0) (= ULTIMATE.start_main_~y~0 1) (= ULTIMATE.start_assume_abort_if_not_~cond 1) (<= 0 ULTIMATE.start_main_~k~0) (<= ULTIMATE.start_main_~z~0 1) (= ULTIMATE.start_main_~az~0 (* ULTIMATE.start_main_~a~0 ULTIMATE.start_main_~z~0)) (<= ULTIMATE.start_main_~k~0 1)) [2020-12-22 05:25:47,778 INFO L189 CegarLoopUtils]: For program point L15-3(lines 15 18) no Hoare annotation was computed. [2020-12-22 05:25:47,778 INFO L189 CegarLoopUtils]: For program point L11(lines 11 13) no Hoare annotation was computed. [2020-12-22 05:25:47,778 INFO L189 CegarLoopUtils]: For program point L11-1(lines 11 13) no Hoare annotation was computed. [2020-12-22 05:25:47,779 INFO L192 CegarLoopUtils]: At program point L15-5(lines 14 20) the Hoare annotation is: true [2020-12-22 05:25:47,779 INFO L189 CegarLoopUtils]: For program point L11-2(lines 11 13) no Hoare annotation was computed. [2020-12-22 05:25:47,779 INFO L185 CegarLoopUtils]: At program point L36-2(lines 36 45) the Hoare annotation is: (and (<= 0 ULTIMATE.start_main_~z~0) (= ULTIMATE.start_main_~a~0 ULTIMATE.start_main_~x~0) (<= 1 ULTIMATE.start_main_~c~0) (= ULTIMATE.start_main_~y~0 1) (= ULTIMATE.start_assume_abort_if_not_~cond 1) (<= 0 ULTIMATE.start_main_~k~0) (<= ULTIMATE.start_main_~z~0 1) (= ULTIMATE.start_main_~az~0 (* ULTIMATE.start_main_~a~0 ULTIMATE.start_main_~z~0)) (<= ULTIMATE.start_main_~k~0 1)) [2020-12-22 05:25:47,779 INFO L189 CegarLoopUtils]: For program point L36-3(lines 36 45) no Hoare annotation was computed. [2020-12-22 05:25:47,779 INFO L189 CegarLoopUtils]: For program point L-1(line -1) no Hoare annotation was computed. [2020-12-22 05:25:47,779 INFO L189 CegarLoopUtils]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-12-22 05:25:47,780 INFO L189 CegarLoopUtils]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-12-22 05:25:47,780 INFO L189 CegarLoopUtils]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 17) no Hoare annotation was computed. [2020-12-22 05:25:47,780 INFO L189 CegarLoopUtils]: For program point L16(lines 16 17) no Hoare annotation was computed. [2020-12-22 05:25:47,780 INFO L189 CegarLoopUtils]: For program point L16-1(lines 16 17) no Hoare annotation was computed. [2020-12-22 05:25:47,780 INFO L189 CegarLoopUtils]: For program point L12(line 12) no Hoare annotation was computed. [2020-12-22 05:25:47,780 INFO L189 CegarLoopUtils]: For program point L12-2(line 12) no Hoare annotation was computed. [2020-12-22 05:25:47,780 INFO L189 CegarLoopUtils]: For program point L12-4(line 12) no Hoare annotation was computed. [2020-12-22 05:25:47,781 INFO L189 CegarLoopUtils]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-12-22 05:25:47,781 INFO L192 CegarLoopUtils]: At program point L47(lines 21 48) the Hoare annotation is: true [2020-12-22 05:25:47,800 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.12 05:25:47 BoogieIcfgContainer [2020-12-22 05:25:47,800 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-12-22 05:25:47,801 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-22 05:25:47,801 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-22 05:25:47,801 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-22 05:25:47,802 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 05:25:45" (3/4) ... [2020-12-22 05:25:47,806 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-12-22 05:25:47,817 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges [2020-12-22 05:25:47,818 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2020-12-22 05:25:47,818 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-12-22 05:25:47,818 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-12-22 05:25:47,868 INFO L141 WitnessManager]: Wrote witness to /storage/repos/svcomp/c/nla-digbench-scaling/geo3-ll_valuebound1.c-witness.graphml [2020-12-22 05:25:47,869 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-22 05:25:47,871 INFO L168 Benchmark]: Toolchain (without parser) took 2814.81 ms. Allocated memory is still 151.0 MB. Free memory was 127.1 MB in the beginning and 127.0 MB in the end (delta: 122.1 kB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2020-12-22 05:25:47,871 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 151.0 MB. Free memory is still 123.3 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-12-22 05:25:47,872 INFO L168 Benchmark]: CACSL2BoogieTranslator took 245.37 ms. Allocated memory is still 151.0 MB. Free memory was 127.0 MB in the beginning and 117.1 MB in the end (delta: 9.8 MB). Peak memory consumption was 10.5 MB. Max. memory is 8.0 GB. [2020-12-22 05:25:47,873 INFO L168 Benchmark]: Boogie Procedure Inliner took 43.37 ms. Allocated memory is still 151.0 MB. Free memory was 117.1 MB in the beginning and 115.6 MB in the end (delta: 1.5 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2020-12-22 05:25:47,873 INFO L168 Benchmark]: Boogie Preprocessor took 26.18 ms. Allocated memory is still 151.0 MB. Free memory was 115.6 MB in the beginning and 114.5 MB in the end (delta: 1.2 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2020-12-22 05:25:47,874 INFO L168 Benchmark]: RCFGBuilder took 506.66 ms. Allocated memory is still 151.0 MB. Free memory was 114.5 MB in the beginning and 133.7 MB in the end (delta: -19.2 MB). Peak memory consumption was 16.8 MB. Max. memory is 8.0 GB. [2020-12-22 05:25:47,875 INFO L168 Benchmark]: TraceAbstraction took 1911.90 ms. Allocated memory is still 151.0 MB. Free memory was 133.2 MB in the beginning and 130.1 MB in the end (delta: 3.1 MB). Peak memory consumption was 84.9 MB. Max. memory is 8.0 GB. [2020-12-22 05:25:47,875 INFO L168 Benchmark]: Witness Printer took 67.59 ms. Allocated memory is still 151.0 MB. Free memory was 129.6 MB in the beginning and 127.0 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2020-12-22 05:25:47,885 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 151.0 MB. Free memory is still 123.3 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 245.37 ms. Allocated memory is still 151.0 MB. Free memory was 127.0 MB in the beginning and 117.1 MB in the end (delta: 9.8 MB). Peak memory consumption was 10.5 MB. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 43.37 ms. Allocated memory is still 151.0 MB. Free memory was 117.1 MB in the beginning and 115.6 MB in the end (delta: 1.5 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 26.18 ms. Allocated memory is still 151.0 MB. Free memory was 115.6 MB in the beginning and 114.5 MB in the end (delta: 1.2 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 506.66 ms. Allocated memory is still 151.0 MB. Free memory was 114.5 MB in the beginning and 133.7 MB in the end (delta: -19.2 MB). Peak memory consumption was 16.8 MB. Max. memory is 8.0 GB. * TraceAbstraction took 1911.90 ms. Allocated memory is still 151.0 MB. Free memory was 133.2 MB in the beginning and 130.1 MB in the end (delta: 3.1 MB). Peak memory consumption was 84.9 MB. Max. memory is 8.0 GB. * Witness Printer took 67.59 ms. Allocated memory is still 151.0 MB. Free memory was 129.6 MB in the beginning and 127.0 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: 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 && a == x) && 1 <= c) && y == 1) && cond == 1) && 0 <= k) && z <= 1) && az == a * z) && k <= 1 - InvariantResult [Line: 39]: Loop Invariant Derived loop invariant: ((((((((0 <= z && a == x) && 1 == cond) && 1 <= c) && y == 1) && cond == 1) && 0 <= k) && z <= 1) && az == a * z) && k <= 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 21 locations, 2 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 1.6s, OverallIterations: 3, TraceHistogramMax: 2, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 41 SDtfs, 26 SDslu, 30 SDs, 0 SdLazy, 39 SolverSat, 7 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 30 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=21occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 1 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 4 LocationsWithAnnotation, 4 PreInvPairs, 8 NumberOfFragments, 65 HoareAnnotationTreeSize, 4 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 4 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 36 NumberOfCodeBlocks, 36 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 33 ConstructedInterpolants, 0 QuantifiedInterpolants, 1771 SizeOfPredicates, 11 NumberOfNonLiveVariables, 158 ConjunctsInSsa, 28 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 2/2 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...