/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/hard-ll_valuebound2.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-4f750a8 [2020-12-22 05:28:09,565 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-22 05:28:09,569 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-22 05:28:09,621 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-22 05:28:09,622 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-22 05:28:09,626 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-22 05:28:09,629 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-22 05:28:09,638 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-22 05:28:09,641 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-22 05:28:09,649 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-22 05:28:09,651 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-22 05:28:09,652 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-22 05:28:09,653 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-22 05:28:09,656 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-22 05:28:09,659 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-22 05:28:09,660 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-22 05:28:09,661 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-22 05:28:09,666 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-22 05:28:09,674 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-22 05:28:09,678 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-22 05:28:09,683 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-22 05:28:09,685 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-22 05:28:09,687 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-22 05:28:09,689 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-22 05:28:09,706 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-22 05:28:09,707 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-22 05:28:09,707 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-22 05:28:09,708 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-22 05:28:09,709 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-22 05:28:09,710 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-22 05:28:09,710 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-22 05:28:09,711 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-22 05:28:09,712 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-22 05:28:09,713 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-22 05:28:09,714 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-22 05:28:09,714 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-22 05:28:09,715 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-22 05:28:09,716 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-22 05:28:09,716 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-22 05:28:09,717 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-22 05:28:09,718 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-22 05:28:09,718 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2020-12-22 05:28:09,744 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-22 05:28:09,744 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-22 05:28:09,745 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-22 05:28:09,746 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-22 05:28:09,746 INFO L138 SettingsManager]: * Use SBE=true [2020-12-22 05:28:09,746 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-22 05:28:09,746 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-22 05:28:09,746 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-22 05:28:09,747 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-22 05:28:09,747 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-22 05:28:09,747 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-22 05:28:09,747 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-22 05:28:09,747 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-22 05:28:09,748 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-22 05:28:09,748 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-22 05:28:09,748 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-22 05:28:09,748 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-22 05:28:09,749 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-22 05:28:09,749 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-22 05:28:09,749 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-22 05:28:09,749 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-22 05:28:09,749 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-12-22 05:28:09,750 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-22 05:28:09,750 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-22 05:28:09,750 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-22 05:28:09,750 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-12-22 05:28:10,105 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-22 05:28:10,137 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-22 05:28:10,139 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-22 05:28:10,141 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-22 05:28:10,141 INFO L275 PluginConnector]: CDTParser initialized [2020-12-22 05:28:10,142 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/nla-digbench-scaling/hard-ll_valuebound2.c [2020-12-22 05:28:10,230 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4a25b7d51/aa6bbe92f1c348d28448c6782e0b9ba2/FLAG4e649675b [2020-12-22 05:28:10,889 INFO L306 CDTParser]: Found 1 translation units. [2020-12-22 05:28:10,890 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/nla-digbench-scaling/hard-ll_valuebound2.c [2020-12-22 05:28:10,899 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4a25b7d51/aa6bbe92f1c348d28448c6782e0b9ba2/FLAG4e649675b [2020-12-22 05:28:11,235 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4a25b7d51/aa6bbe92f1c348d28448c6782e0b9ba2 [2020-12-22 05:28:11,243 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-22 05:28:11,245 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-22 05:28:11,247 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-22 05:28:11,247 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-22 05:28:11,253 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-22 05:28:11,255 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 05:28:11" (1/1) ... [2020-12-22 05:28:11,257 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7982e638 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 05:28:11, skipping insertion in model container [2020-12-22 05:28:11,257 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 05:28:11" (1/1) ... [2020-12-22 05:28:11,265 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-22 05:28:11,285 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-22 05:28:11,432 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/hard-ll_valuebound2.c[538,551] [2020-12-22 05:28:11,451 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-22 05:28:11,461 INFO L203 MainTranslator]: Completed pre-run [2020-12-22 05:28:11,475 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/hard-ll_valuebound2.c[538,551] [2020-12-22 05:28:11,486 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-22 05:28:11,502 INFO L208 MainTranslator]: Completed translation [2020-12-22 05:28:11,502 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 05:28:11 WrapperNode [2020-12-22 05:28:11,502 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-22 05:28:11,504 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-22 05:28:11,504 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-22 05:28:11,504 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-22 05:28:11,512 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 05:28:11" (1/1) ... [2020-12-22 05:28:11,520 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 05:28:11" (1/1) ... [2020-12-22 05:28:11,550 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-22 05:28:11,551 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-22 05:28:11,556 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-22 05:28:11,556 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-22 05:28:11,569 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 05:28:11" (1/1) ... [2020-12-22 05:28:11,569 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 05:28:11" (1/1) ... [2020-12-22 05:28:11,574 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 05:28:11" (1/1) ... [2020-12-22 05:28:11,574 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 05:28:11" (1/1) ... [2020-12-22 05:28:11,584 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 05:28:11" (1/1) ... [2020-12-22 05:28:11,589 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 05:28:11" (1/1) ... [2020-12-22 05:28:11,591 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 05:28:11" (1/1) ... [2020-12-22 05:28:11,605 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-22 05:28:11,608 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-22 05:28:11,609 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-22 05:28:11,609 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-22 05:28:11,613 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 05:28:11" (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 05:28:11,711 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-22 05:28:11,711 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-22 05:28:11,711 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-22 05:28:11,711 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-22 05:28:12,091 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-22 05:28:12,092 INFO L299 CfgBuilder]: Removed 26 assume(true) statements. [2020-12-22 05:28:12,094 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 05:28:12 BoogieIcfgContainer [2020-12-22 05:28:12,096 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-22 05:28:12,098 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-22 05:28:12,098 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-22 05:28:12,107 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-22 05:28:12,108 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.12 05:28:11" (1/3) ... [2020-12-22 05:28:12,109 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@79ed349e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 05:28:12, skipping insertion in model container [2020-12-22 05:28:12,109 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 05:28:11" (2/3) ... [2020-12-22 05:28:12,112 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@79ed349e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 05:28:12, skipping insertion in model container [2020-12-22 05:28:12,113 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 05:28:12" (3/3) ... [2020-12-22 05:28:12,118 INFO L111 eAbstractionObserver]: Analyzing ICFG hard-ll_valuebound2.c [2020-12-22 05:28:12,133 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-22 05:28:12,143 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 7 error locations. [2020-12-22 05:28:12,191 INFO L253 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2020-12-22 05:28:12,260 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-22 05:28:12,261 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-22 05:28:12,261 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-22 05:28:12,261 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-22 05:28:12,261 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-22 05:28:12,261 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-22 05:28:12,261 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-22 05:28:12,262 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-22 05:28:12,281 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states. [2020-12-22 05:28:12,286 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-12-22 05:28:12,287 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 05:28:12,287 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 05:28:12,288 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 05:28:12,294 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 05:28:12,294 INFO L82 PathProgramCache]: Analyzing trace with hash 330581779, now seen corresponding path program 1 times [2020-12-22 05:28:12,304 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 05:28:12,305 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [954643763] [2020-12-22 05:28:12,305 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 05:28:12,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 05:28:12,473 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 05:28:12,474 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [954643763] [2020-12-22 05:28:12,475 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 05:28:12,476 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-22 05:28:12,477 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [621726532] [2020-12-22 05:28:12,482 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-12-22 05:28:12,482 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 05:28:12,498 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-12-22 05:28:12,499 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-12-22 05:28:12,502 INFO L87 Difference]: Start difference. First operand 43 states. Second operand 2 states. [2020-12-22 05:28:12,524 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 05:28:12,525 INFO L93 Difference]: Finished difference Result 83 states and 114 transitions. [2020-12-22 05:28:12,525 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-12-22 05:28:12,526 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 11 [2020-12-22 05:28:12,527 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 05:28:12,536 INFO L225 Difference]: With dead ends: 83 [2020-12-22 05:28:12,536 INFO L226 Difference]: Without dead ends: 39 [2020-12-22 05:28:12,540 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 05:28:12,560 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2020-12-22 05:28:12,578 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 39. [2020-12-22 05:28:12,579 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39 states. [2020-12-22 05:28:12,581 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 41 transitions. [2020-12-22 05:28:12,582 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 41 transitions. Word has length 11 [2020-12-22 05:28:12,583 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 05:28:12,583 INFO L481 AbstractCegarLoop]: Abstraction has 39 states and 41 transitions. [2020-12-22 05:28:12,583 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-12-22 05:28:12,583 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 41 transitions. [2020-12-22 05:28:12,584 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-12-22 05:28:12,584 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 05:28:12,584 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 05:28:12,584 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-22 05:28:12,585 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 05:28:12,586 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 05:28:12,586 INFO L82 PathProgramCache]: Analyzing trace with hash -1507472743, now seen corresponding path program 1 times [2020-12-22 05:28:12,586 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 05:28:12,587 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1531169967] [2020-12-22 05:28:12,587 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 05:28:12,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 05:28:12,696 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 05:28:12,697 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1531169967] [2020-12-22 05:28:12,697 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 05:28:12,697 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-22 05:28:12,698 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [467966210] [2020-12-22 05:28:12,700 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-22 05:28:12,700 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 05:28:12,701 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-22 05:28:12,702 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-22 05:28:12,702 INFO L87 Difference]: Start difference. First operand 39 states and 41 transitions. Second operand 4 states. [2020-12-22 05:28:12,850 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 05:28:12,851 INFO L93 Difference]: Finished difference Result 58 states and 61 transitions. [2020-12-22 05:28:12,852 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-22 05:28:12,852 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2020-12-22 05:28:12,852 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 05:28:12,853 INFO L225 Difference]: With dead ends: 58 [2020-12-22 05:28:12,854 INFO L226 Difference]: Without dead ends: 56 [2020-12-22 05:28:12,855 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-12-22 05:28:12,856 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56 states. [2020-12-22 05:28:12,863 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 37. [2020-12-22 05:28:12,863 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37 states. [2020-12-22 05:28:12,864 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 39 transitions. [2020-12-22 05:28:12,864 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 39 transitions. Word has length 11 [2020-12-22 05:28:12,865 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 05:28:12,865 INFO L481 AbstractCegarLoop]: Abstraction has 37 states and 39 transitions. [2020-12-22 05:28:12,865 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-22 05:28:12,865 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 39 transitions. [2020-12-22 05:28:12,866 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-12-22 05:28:12,866 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 05:28:12,866 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 05:28:12,866 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-12-22 05:28:12,867 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 05:28:12,867 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 05:28:12,868 INFO L82 PathProgramCache]: Analyzing trace with hash -1277171076, now seen corresponding path program 1 times [2020-12-22 05:28:12,868 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 05:28:12,868 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1763215790] [2020-12-22 05:28:12,868 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 05:28:12,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 05:28:12,956 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 05:28:12,957 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1763215790] [2020-12-22 05:28:12,957 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 05:28:12,957 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-22 05:28:12,957 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1149115389] [2020-12-22 05:28:12,958 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-22 05:28:12,958 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 05:28:12,959 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-22 05:28:12,959 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-22 05:28:12,959 INFO L87 Difference]: Start difference. First operand 37 states and 39 transitions. Second operand 4 states. [2020-12-22 05:28:13,075 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 05:28:13,075 INFO L93 Difference]: Finished difference Result 56 states and 59 transitions. [2020-12-22 05:28:13,076 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-22 05:28:13,076 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 13 [2020-12-22 05:28:13,077 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 05:28:13,078 INFO L225 Difference]: With dead ends: 56 [2020-12-22 05:28:13,078 INFO L226 Difference]: Without dead ends: 54 [2020-12-22 05:28:13,078 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-12-22 05:28:13,079 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2020-12-22 05:28:13,087 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 35. [2020-12-22 05:28:13,087 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35 states. [2020-12-22 05:28:13,088 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 37 transitions. [2020-12-22 05:28:13,088 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 37 transitions. Word has length 13 [2020-12-22 05:28:13,089 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 05:28:13,089 INFO L481 AbstractCegarLoop]: Abstraction has 35 states and 37 transitions. [2020-12-22 05:28:13,089 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-22 05:28:13,089 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 37 transitions. [2020-12-22 05:28:13,090 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-12-22 05:28:13,090 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 05:28:13,090 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 05:28:13,090 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-12-22 05:28:13,091 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 05:28:13,091 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 05:28:13,091 INFO L82 PathProgramCache]: Analyzing trace with hash 999399167, now seen corresponding path program 1 times [2020-12-22 05:28:13,092 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 05:28:13,092 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [860748453] [2020-12-22 05:28:13,092 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 05:28:13,113 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-12-22 05:28:13,113 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [829730229] [2020-12-22 05:28:13,114 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 05:28:13,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 05:28:13,196 INFO L263 TraceCheckSpWp]: Trace formula consists of 75 conjuncts, 27 conjunts are in the unsatisfiable core [2020-12-22 05:28:13,202 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-22 05:28:13,480 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 05:28:13,481 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [860748453] [2020-12-22 05:28:13,481 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-12-22 05:28:13,482 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [829730229] [2020-12-22 05:28:13,483 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 05:28:13,483 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-12-22 05:28:13,484 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1928878756] [2020-12-22 05:28:13,484 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-12-22 05:28:13,484 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 05:28:13,487 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-12-22 05:28:13,489 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2020-12-22 05:28:13,489 INFO L87 Difference]: Start difference. First operand 35 states and 37 transitions. Second operand 10 states. [2020-12-22 05:28:13,850 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 05:28:13,851 INFO L93 Difference]: Finished difference Result 76 states and 82 transitions. [2020-12-22 05:28:13,851 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-12-22 05:28:13,851 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 15 [2020-12-22 05:28:13,852 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 05:28:13,853 INFO L225 Difference]: With dead ends: 76 [2020-12-22 05:28:13,853 INFO L226 Difference]: Without dead ends: 54 [2020-12-22 05:28:13,854 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=72, Invalid=138, Unknown=0, NotChecked=0, Total=210 [2020-12-22 05:28:13,854 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2020-12-22 05:28:13,863 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 49. [2020-12-22 05:28:13,864 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 49 states. [2020-12-22 05:28:13,866 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 53 transitions. [2020-12-22 05:28:13,866 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 53 transitions. Word has length 15 [2020-12-22 05:28:13,867 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 05:28:13,867 INFO L481 AbstractCegarLoop]: Abstraction has 49 states and 53 transitions. [2020-12-22 05:28:13,867 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-12-22 05:28:13,867 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 53 transitions. [2020-12-22 05:28:13,868 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-12-22 05:28:13,868 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 05:28:13,868 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 05:28:14,084 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 05:28:14,085 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 05:28:14,087 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 05:28:14,087 INFO L82 PathProgramCache]: Analyzing trace with hash 392223696, now seen corresponding path program 1 times [2020-12-22 05:28:14,088 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 05:28:14,088 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [961879843] [2020-12-22 05:28:14,088 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 05:28:14,104 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-12-22 05:28:14,104 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1264687340] [2020-12-22 05:28:14,104 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 05:28:14,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 05:28:14,155 INFO L263 TraceCheckSpWp]: Trace formula consists of 81 conjuncts, 25 conjunts are in the unsatisfiable core [2020-12-22 05:28:14,159 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-22 05:28:14,319 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 05:28:14,319 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [961879843] [2020-12-22 05:28:14,320 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-12-22 05:28:14,320 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1264687340] [2020-12-22 05:28:14,320 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 05:28:14,320 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-12-22 05:28:14,321 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2013630839] [2020-12-22 05:28:14,321 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-12-22 05:28:14,321 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 05:28:14,322 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-12-22 05:28:14,322 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2020-12-22 05:28:14,322 INFO L87 Difference]: Start difference. First operand 49 states and 53 transitions. Second operand 9 states. [2020-12-22 05:28:14,550 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 05:28:14,550 INFO L93 Difference]: Finished difference Result 67 states and 72 transitions. [2020-12-22 05:28:14,550 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-12-22 05:28:14,551 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 18 [2020-12-22 05:28:14,551 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 05:28:14,552 INFO L225 Difference]: With dead ends: 67 [2020-12-22 05:28:14,552 INFO L226 Difference]: Without dead ends: 56 [2020-12-22 05:28:14,552 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=55, Invalid=101, Unknown=0, NotChecked=0, Total=156 [2020-12-22 05:28:14,553 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56 states. [2020-12-22 05:28:14,560 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 50. [2020-12-22 05:28:14,560 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 50 states. [2020-12-22 05:28:14,561 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 55 transitions. [2020-12-22 05:28:14,561 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 55 transitions. Word has length 18 [2020-12-22 05:28:14,561 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 05:28:14,561 INFO L481 AbstractCegarLoop]: Abstraction has 50 states and 55 transitions. [2020-12-22 05:28:14,561 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-12-22 05:28:14,562 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 55 transitions. [2020-12-22 05:28:14,562 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-12-22 05:28:14,562 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 05:28:14,563 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 05:28:14,775 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 05:28:14,776 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 05:28:14,777 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 05:28:14,777 INFO L82 PathProgramCache]: Analyzing trace with hash 434992196, now seen corresponding path program 1 times [2020-12-22 05:28:14,778 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 05:28:14,778 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1366103803] [2020-12-22 05:28:14,778 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 05:28:14,792 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-12-22 05:28:14,792 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2064981386] [2020-12-22 05:28:14,793 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY 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 05:28:14,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 05:28:14,842 INFO L263 TraceCheckSpWp]: Trace formula consists of 95 conjuncts, 28 conjunts are in the unsatisfiable core [2020-12-22 05:28:14,844 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-22 05:28:15,013 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 05:28:15,013 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1366103803] [2020-12-22 05:28:15,014 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-12-22 05:28:15,014 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2064981386] [2020-12-22 05:28:15,014 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-12-22 05:28:15,014 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-12-22 05:28:15,015 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1715326561] [2020-12-22 05:28:15,015 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-12-22 05:28:15,015 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 05:28:15,016 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-12-22 05:28:15,016 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2020-12-22 05:28:15,016 INFO L87 Difference]: Start difference. First operand 50 states and 55 transitions. Second operand 9 states. [2020-12-22 05:28:15,438 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 05:28:15,438 INFO L93 Difference]: Finished difference Result 102 states and 117 transitions. [2020-12-22 05:28:15,439 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-12-22 05:28:15,440 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 22 [2020-12-22 05:28:15,440 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 05:28:15,441 INFO L225 Difference]: With dead ends: 102 [2020-12-22 05:28:15,441 INFO L226 Difference]: Without dead ends: 65 [2020-12-22 05:28:15,450 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=65, Invalid=145, Unknown=0, NotChecked=0, Total=210 [2020-12-22 05:28:15,452 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65 states. [2020-12-22 05:28:15,469 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65 to 63. [2020-12-22 05:28:15,469 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 63 states. [2020-12-22 05:28:15,471 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 69 transitions. [2020-12-22 05:28:15,471 INFO L78 Accepts]: Start accepts. Automaton has 63 states and 69 transitions. Word has length 22 [2020-12-22 05:28:15,472 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 05:28:15,472 INFO L481 AbstractCegarLoop]: Abstraction has 63 states and 69 transitions. [2020-12-22 05:28:15,472 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-12-22 05:28:15,472 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 69 transitions. [2020-12-22 05:28:15,474 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2020-12-22 05:28:15,474 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 05:28:15,474 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 05:28:15,675 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 05:28:15,676 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 05:28:15,676 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 05:28:15,677 INFO L82 PathProgramCache]: Analyzing trace with hash -919005345, now seen corresponding path program 2 times [2020-12-22 05:28:15,677 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 05:28:15,678 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [520026156] [2020-12-22 05:28:15,678 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 05:28:15,692 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-12-22 05:28:15,692 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [559395360] [2020-12-22 05:28:15,692 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 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 05:28:15,758 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2020-12-22 05:28:15,758 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-12-22 05:28:15,760 INFO L263 TraceCheckSpWp]: Trace formula consists of 115 conjuncts, 44 conjunts are in the unsatisfiable core [2020-12-22 05:28:15,764 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-22 05:28:16,178 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [520026156] [2020-12-22 05:28:16,178 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-12-22 05:28:16,179 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [559395360] [2020-12-22 05:28:16,179 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: null [2020-12-22 05:28:16,179 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 0 imperfect interpolant sequences. [2020-12-22 05:28:16,179 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [] total 0 [2020-12-22 05:28:16,179 ERROR L205 FreeRefinementEngine]: Strategy CAMEL failed to provide any proof altough trace is infeasible [2020-12-22 05:28:16,179 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-12-22 05:28:16,398 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 05:28:16,417 WARN L227 ceAbstractionStarter]: Unable to decide correctness. Please check the following counterexample manually. [2020-12-22 05:28:16,418 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.12 05:28:16 BoogieIcfgContainer [2020-12-22 05:28:16,418 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-12-22 05:28:16,419 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-22 05:28:16,419 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-22 05:28:16,419 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-22 05:28:16,419 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 05:28:12" (3/4) ... [2020-12-22 05:28:16,423 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-12-22 05:28:16,424 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-22 05:28:16,426 INFO L168 Benchmark]: Toolchain (without parser) took 5179.66 ms. Allocated memory was 160.4 MB in the beginning and 192.9 MB in the end (delta: 32.5 MB). Free memory was 135.4 MB in the beginning and 161.0 MB in the end (delta: -25.5 MB). Peak memory consumption was 7.5 MB. Max. memory is 8.0 GB. [2020-12-22 05:28:16,426 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 160.4 MB. Free memory is still 134.0 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-12-22 05:28:16,427 INFO L168 Benchmark]: CACSL2BoogieTranslator took 256.01 ms. Allocated memory is still 160.4 MB. Free memory was 135.2 MB in the beginning and 125.2 MB in the end (delta: 10.0 MB). Peak memory consumption was 10.5 MB. Max. memory is 8.0 GB. [2020-12-22 05:28:16,428 INFO L168 Benchmark]: Boogie Procedure Inliner took 46.57 ms. Allocated memory is still 160.4 MB. Free memory was 125.2 MB in the beginning and 123.6 MB in the end (delta: 1.6 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2020-12-22 05:28:16,429 INFO L168 Benchmark]: Boogie Preprocessor took 53.94 ms. Allocated memory is still 160.4 MB. Free memory was 123.6 MB in the beginning and 122.4 MB in the end (delta: 1.2 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2020-12-22 05:28:16,431 INFO L168 Benchmark]: RCFGBuilder took 488.03 ms. Allocated memory is still 160.4 MB. Free memory was 122.4 MB in the beginning and 139.6 MB in the end (delta: -17.3 MB). Peak memory consumption was 16.8 MB. Max. memory is 8.0 GB. [2020-12-22 05:28:16,432 INFO L168 Benchmark]: TraceAbstraction took 4319.93 ms. Allocated memory was 160.4 MB in the beginning and 192.9 MB in the end (delta: 32.5 MB). Free memory was 139.1 MB in the beginning and 161.5 MB in the end (delta: -22.4 MB). Peak memory consumption was 11.7 MB. Max. memory is 8.0 GB. [2020-12-22 05:28:16,434 INFO L168 Benchmark]: Witness Printer took 5.21 ms. Allocated memory is still 192.9 MB. Free memory was 161.5 MB in the beginning and 161.0 MB in the end (delta: 522.2 kB). There was no memory consumed. Max. memory is 8.0 GB. [2020-12-22 05:28:16,440 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 160.4 MB. Free memory is still 134.0 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 256.01 ms. Allocated memory is still 160.4 MB. Free memory was 135.2 MB in the beginning and 125.2 MB in the end (delta: 10.0 MB). Peak memory consumption was 10.5 MB. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 46.57 ms. Allocated memory is still 160.4 MB. Free memory was 125.2 MB in the beginning and 123.6 MB in the end (delta: 1.6 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 53.94 ms. Allocated memory is still 160.4 MB. Free memory was 123.6 MB in the beginning and 122.4 MB in the end (delta: 1.2 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 488.03 ms. Allocated memory is still 160.4 MB. Free memory was 122.4 MB in the beginning and 139.6 MB in the end (delta: -17.3 MB). Peak memory consumption was 16.8 MB. Max. memory is 8.0 GB. * TraceAbstraction took 4319.93 ms. Allocated memory was 160.4 MB in the beginning and 192.9 MB in the end (delta: 32.5 MB). Free memory was 139.1 MB in the beginning and 161.5 MB in the end (delta: -22.4 MB). Peak memory consumption was 11.7 MB. Max. memory is 8.0 GB. * Witness Printer took 5.21 ms. Allocated memory is still 192.9 MB. Free memory was 161.5 MB in the beginning and 161.0 MB in the end (delta: 522.2 kB). There was no memory consumed. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 17]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: unable to decide satisfiability of path constraint. Possible FailurePath: [L23] unsigned int A, B; [L24] long long r, d, p, q; [L25] A = __VERIFIER_nondet_uint() [L12] COND FALSE !(!cond) [L27] B = __VERIFIER_nondet_uint() [L12] COND FALSE !(!cond) [L12] COND FALSE !(!cond) [L31] r = A [L32] d = B [L33] p = 1 [L34] q = 0 [L36] COND TRUE 1 [L15] COND FALSE !(!(cond)) [L15] COND FALSE !(!(cond)) [L15] COND FALSE !(!(cond)) [L40] COND FALSE !(!(r >= d)) [L42] d = 2 * d [L43] p = 2 * p [L36] COND TRUE 1 [L15] COND FALSE !(!(cond)) [L15] COND FALSE !(!(cond)) [L15] COND FALSE !(!(cond)) [L40] COND FALSE !(!(r >= d)) [L42] d = 2 * d [L43] p = 2 * p [L36] COND TRUE 1 [L15] COND FALSE !(!(cond)) [L15] COND FALSE !(!(cond)) [L15] COND TRUE !(cond) [L17] reach_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 43 locations, 7 error locations. Started 1 CEGAR loops. VerificationResult: UNKNOWN, OverallTime: 4.1s, OverallIterations: 7, TraceHistogramMax: 3, AutomataDifference: 1.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 175 SDtfs, 505 SDslu, 198 SDs, 0 SdLazy, 294 SolverSat, 109 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 79 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=63occurred in iteration=6, 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, 6 MinimizatonAttempts, 51 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.8s InterpolantComputationTime, 90 NumberOfCodeBlocks, 90 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 84 ConstructedInterpolants, 0 QuantifiedInterpolants, 11842 SizeOfPredicates, 32 NumberOfNonLiveVariables, 251 ConjunctsInSsa, 80 ConjunctsInUnsatCore, 6 InterpolantComputations, 5 PerfectInterpolantSequences, 0/6 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 could not prove your program: unable to determine feasibility of some traces Received shutdown request...