/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.use.separate.solver.for.trace.checks true -s ../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf -i ../../../trunk/examples/svcomp/float-newlib/float_req_bl_1211a.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-b8ad66e [2020-10-24 00:34:32,545 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-24 00:34:32,549 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-24 00:34:32,601 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2020-10-24 00:34:32,643 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-24 00:34:32,645 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-24 00:34:32,647 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-24 00:34:32,650 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-24 00:34:32,651 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-24 00:34:32,652 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-24 00:34:32,657 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-24 00:34:32,660 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-24 00:34:32,665 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-24 00:34:32,669 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-24 00:34:32,671 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-24 00:34:32,674 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-24 00:34:32,680 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-10-24 00:34:32,700 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2020-10-24 00:34:32,722 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-24 00:34:32,723 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-24 00:34:32,727 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-24 00:34:32,728 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-24 00:34:32,728 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-24 00:34:32,728 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-24 00:34:32,728 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-24 00:34:32,728 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-24 00:34:32,729 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-24 00:34:32,729 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-24 00:34:32,730 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-24 00:34:32,730 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-24 00:34:32,730 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-24 00:34:32,731 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-24 00:34:32,731 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-24 00:34:32,731 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-10-24 00:34:32,732 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-24 00:34:32,732 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-24 00:34:32,732 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-24 00:34:32,732 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-24 00:34:32,732 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-10-24 00:34:32,733 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-24 00:34:32,733 INFO L138 SettingsManager]: * Use separate solver for trace checks=false 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use separate solver for trace checks -> true [2020-10-24 00:34:33,116 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-24 00:34:33,161 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-24 00:34:33,164 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-24 00:34:33,166 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-24 00:34:33,166 INFO L275 PluginConnector]: CDTParser initialized [2020-10-24 00:34:33,167 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/float_req_bl_1211a.c [2020-10-24 00:34:33,243 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8fabeb2eb/0e527e94f9804dbab1dc1bfc570eeb71/FLAGcc2f50d2f [2020-10-24 00:34:33,800 INFO L306 CDTParser]: Found 1 translation units. [2020-10-24 00:34:33,800 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/float_req_bl_1211a.c [2020-10-24 00:34:33,812 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8fabeb2eb/0e527e94f9804dbab1dc1bfc570eeb71/FLAGcc2f50d2f [2020-10-24 00:34:34,184 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8fabeb2eb/0e527e94f9804dbab1dc1bfc570eeb71 [2020-10-24 00:34:34,190 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-24 00:34:34,202 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-24 00:34:34,206 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-24 00:34:34,206 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-24 00:34:34,210 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-24 00:34:34,211 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 12:34:34" (1/1) ... [2020-10-24 00:34:34,215 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@56179408 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:34:34, skipping insertion in model container [2020-10-24 00:34:34,216 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 12:34:34" (1/1) ... [2020-10-24 00:34:34,224 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-24 00:34:34,254 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-24 00:34:34,490 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-24 00:34:34,500 INFO L203 MainTranslator]: Completed pre-run [2020-10-24 00:34:34,537 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-24 00:34:34,555 INFO L208 MainTranslator]: Completed translation [2020-10-24 00:34:34,556 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:34:34 WrapperNode [2020-10-24 00:34:34,556 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-24 00:34:34,557 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-24 00:34:34,557 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-24 00:34:34,558 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-24 00:34:34,570 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:34:34" (1/1) ... [2020-10-24 00:34:34,570 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:34:34" (1/1) ... [2020-10-24 00:34:34,585 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:34:34" (1/1) ... [2020-10-24 00:34:34,585 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:34:34" (1/1) ... [2020-10-24 00:34:34,601 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:34:34" (1/1) ... [2020-10-24 00:34:34,608 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:34:34" (1/1) ... [2020-10-24 00:34:34,611 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:34:34" (1/1) ... [2020-10-24 00:34:34,615 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-24 00:34:34,616 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-24 00:34:34,617 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-24 00:34:34,617 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-24 00:34:34,618 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:34:34" (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 [2020-10-24 00:34:34,693 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-24 00:34:34,693 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-24 00:34:34,694 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-24 00:34:34,694 INFO L138 BoogieDeclarations]: Found implementation of procedure modf_float [2020-10-24 00:34:34,694 INFO L138 BoogieDeclarations]: Found implementation of procedure __signbit_float [2020-10-24 00:34:34,694 INFO L138 BoogieDeclarations]: Found implementation of procedure isinf_float [2020-10-24 00:34:34,694 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-24 00:34:34,695 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-24 00:34:34,695 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-24 00:34:34,695 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-24 00:34:34,695 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-24 00:34:34,695 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_float [2020-10-24 00:34:34,695 INFO L130 BoogieDeclarations]: Found specification of procedure modf_float [2020-10-24 00:34:34,696 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2020-10-24 00:34:34,696 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-24 00:34:34,696 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-24 00:34:34,696 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-24 00:34:34,696 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2020-10-24 00:34:34,697 INFO L130 BoogieDeclarations]: Found specification of procedure __signbit_float [2020-10-24 00:34:34,697 INFO L130 BoogieDeclarations]: Found specification of procedure isinf_float [2020-10-24 00:34:34,697 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-24 00:34:34,697 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2020-10-24 00:34:34,697 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-24 00:34:34,698 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-24 00:34:34,698 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-24 00:34:35,457 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-24 00:34:35,458 INFO L298 CfgBuilder]: Removed 18 assume(true) statements. [2020-10-24 00:34:35,461 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 12:34:35 BoogieIcfgContainer [2020-10-24 00:34:35,461 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-24 00:34:35,467 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-24 00:34:35,467 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-24 00:34:35,471 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-24 00:34:35,471 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 12:34:34" (1/3) ... [2020-10-24 00:34:35,474 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@691bd9e6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 12:34:35, skipping insertion in model container [2020-10-24 00:34:35,475 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:34:34" (2/3) ... [2020-10-24 00:34:35,476 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@691bd9e6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 12:34:35, skipping insertion in model container [2020-10-24 00:34:35,476 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 12:34:35" (3/3) ... [2020-10-24 00:34:35,478 INFO L111 eAbstractionObserver]: Analyzing ICFG float_req_bl_1211a.c [2020-10-24 00:34:35,491 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-24 00:34:35,496 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-24 00:34:35,511 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-24 00:34:35,546 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-24 00:34:35,546 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-24 00:34:35,546 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-24 00:34:35,546 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-24 00:34:35,546 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-24 00:34:35,547 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-24 00:34:35,547 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-24 00:34:35,547 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-24 00:34:35,576 INFO L276 IsEmpty]: Start isEmpty. Operand 176 states. [2020-10-24 00:34:35,588 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2020-10-24 00:34:35,588 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 00:34:35,589 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-24 00:34:35,589 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-24 00:34:35,594 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 00:34:35,594 INFO L82 PathProgramCache]: Analyzing trace with hash 1634014633, now seen corresponding path program 1 times [2020-10-24 00:34:35,602 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-24 00:34:35,603 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [653503246] [2020-10-24 00:34:35,603 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-24 00:34:35,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 00:34:35,852 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-24 00:34:35,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 00:34:35,918 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2020-10-24 00:34:35,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 00:34:35,927 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-10-24 00:34:35,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 00:34:35,944 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-24 00:34:35,945 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [653503246] [2020-10-24 00:34:35,948 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-24 00:34:35,948 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-24 00:34:35,949 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [655874618] [2020-10-24 00:34:35,954 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-24 00:34:35,955 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-24 00:34:35,970 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-24 00:34:35,971 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-24 00:34:35,973 INFO L87 Difference]: Start difference. First operand 176 states. Second operand 4 states. [2020-10-24 00:34:36,474 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-24 00:34:36,474 INFO L93 Difference]: Finished difference Result 324 states and 373 transitions. [2020-10-24 00:34:36,475 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-24 00:34:36,476 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 53 [2020-10-24 00:34:36,477 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-24 00:34:36,488 INFO L225 Difference]: With dead ends: 324 [2020-10-24 00:34:36,489 INFO L226 Difference]: Without dead ends: 159 [2020-10-24 00:34:36,494 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-24 00:34:36,512 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 159 states. [2020-10-24 00:34:36,550 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 159 to 159. [2020-10-24 00:34:36,551 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 159 states. [2020-10-24 00:34:36,553 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 159 states to 159 states and 163 transitions. [2020-10-24 00:34:36,555 INFO L78 Accepts]: Start accepts. Automaton has 159 states and 163 transitions. Word has length 53 [2020-10-24 00:34:36,556 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-24 00:34:36,556 INFO L481 AbstractCegarLoop]: Abstraction has 159 states and 163 transitions. [2020-10-24 00:34:36,556 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-24 00:34:36,556 INFO L276 IsEmpty]: Start isEmpty. Operand 159 states and 163 transitions. [2020-10-24 00:34:36,560 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2020-10-24 00:34:36,560 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 00:34:36,560 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-24 00:34:36,560 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-24 00:34:36,561 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-24 00:34:36,561 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 00:34:36,562 INFO L82 PathProgramCache]: Analyzing trace with hash 1290234402, now seen corresponding path program 1 times [2020-10-24 00:34:36,562 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-24 00:34:36,562 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [275813387] [2020-10-24 00:34:36,562 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-24 00:34:36,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 00:34:36,779 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-24 00:34:36,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 00:34:36,802 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2020-10-24 00:34:36,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 00:34:36,818 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2020-10-24 00:34:36,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 00:34:36,836 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-24 00:34:36,836 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [275813387] [2020-10-24 00:34:36,837 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-24 00:34:36,837 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-24 00:34:36,837 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1309571313] [2020-10-24 00:34:36,839 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-24 00:34:36,839 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-24 00:34:36,840 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-24 00:34:36,840 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-24 00:34:36,840 INFO L87 Difference]: Start difference. First operand 159 states and 163 transitions. Second operand 5 states. [2020-10-24 00:34:37,214 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-24 00:34:37,214 INFO L93 Difference]: Finished difference Result 168 states and 171 transitions. [2020-10-24 00:34:37,215 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-24 00:34:37,215 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 78 [2020-10-24 00:34:37,216 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-24 00:34:37,218 INFO L225 Difference]: With dead ends: 168 [2020-10-24 00:34:37,218 INFO L226 Difference]: Without dead ends: 159 [2020-10-24 00:34:37,219 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-24 00:34:37,220 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 159 states. [2020-10-24 00:34:37,236 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 159 to 159. [2020-10-24 00:34:37,236 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 159 states. [2020-10-24 00:34:37,237 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 159 states to 159 states and 162 transitions. [2020-10-24 00:34:37,238 INFO L78 Accepts]: Start accepts. Automaton has 159 states and 162 transitions. Word has length 78 [2020-10-24 00:34:37,238 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-24 00:34:37,238 INFO L481 AbstractCegarLoop]: Abstraction has 159 states and 162 transitions. [2020-10-24 00:34:37,238 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-24 00:34:37,239 INFO L276 IsEmpty]: Start isEmpty. Operand 159 states and 162 transitions. [2020-10-24 00:34:37,241 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2020-10-24 00:34:37,241 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 00:34:37,241 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-24 00:34:37,241 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-24 00:34:37,242 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-24 00:34:37,242 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 00:34:37,242 INFO L82 PathProgramCache]: Analyzing trace with hash -1848202550, now seen corresponding path program 1 times [2020-10-24 00:34:37,243 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-24 00:34:37,243 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [547553955] [2020-10-24 00:34:37,243 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-24 00:34:37,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-24 00:34:37,315 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-24 00:34:37,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-24 00:34:37,373 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-24 00:34:37,411 INFO L173 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-10-24 00:34:37,412 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-24 00:34:37,412 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-24 00:34:37,474 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.10 12:34:37 BoogieIcfgContainer [2020-10-24 00:34:37,474 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-24 00:34:37,477 INFO L168 Benchmark]: Toolchain (without parser) took 3283.62 ms. Allocated memory was 158.3 MB in the beginning and 190.8 MB in the end (delta: 32.5 MB). Free memory was 133.7 MB in the beginning and 140.6 MB in the end (delta: -6.8 MB). Peak memory consumption was 25.8 MB. Max. memory is 8.0 GB. [2020-10-24 00:34:37,478 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 158.3 MB. Free memory is still 131.4 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-10-24 00:34:37,479 INFO L168 Benchmark]: CACSL2BoogieTranslator took 350.77 ms. Allocated memory is still 158.3 MB. Free memory was 133.1 MB in the beginning and 121.8 MB in the end (delta: 11.2 MB). Peak memory consumption was 11.5 MB. Max. memory is 8.0 GB. [2020-10-24 00:34:37,480 INFO L168 Benchmark]: Boogie Preprocessor took 58.11 ms. Allocated memory is still 158.3 MB. Free memory was 121.8 MB in the beginning and 119.8 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2020-10-24 00:34:37,481 INFO L168 Benchmark]: RCFGBuilder took 844.68 ms. Allocated memory is still 158.3 MB. Free memory was 119.6 MB in the beginning and 118.5 MB in the end (delta: 1.1 MB). Peak memory consumption was 19.0 MB. Max. memory is 8.0 GB. [2020-10-24 00:34:37,482 INFO L168 Benchmark]: TraceAbstraction took 2007.96 ms. Allocated memory was 158.3 MB in the beginning and 190.8 MB in the end (delta: 32.5 MB). Free memory was 118.5 MB in the beginning and 140.6 MB in the end (delta: -22.0 MB). Peak memory consumption was 11.0 MB. Max. memory is 8.0 GB. [2020-10-24 00:34:37,486 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 158.3 MB. Free memory is still 131.4 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 350.77 ms. Allocated memory is still 158.3 MB. Free memory was 133.1 MB in the beginning and 121.8 MB in the end (delta: 11.2 MB). Peak memory consumption was 11.5 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 58.11 ms. Allocated memory is still 158.3 MB. Free memory was 121.8 MB in the beginning and 119.8 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 844.68 ms. Allocated memory is still 158.3 MB. Free memory was 119.6 MB in the beginning and 118.5 MB in the end (delta: 1.1 MB). Peak memory consumption was 19.0 MB. Max. memory is 8.0 GB. * TraceAbstraction took 2007.96 ms. Allocated memory was 158.3 MB in the beginning and 190.8 MB in the end (delta: 32.5 MB). Free memory was 118.5 MB in the beginning and 140.6 MB in the end (delta: -22.0 MB). Peak memory consumption was 11.0 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 3]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 111, overapproximation of someBinaryArithmeticFLOAToperation at line 106, overapproximation of bitwiseAnd at line 95. Possible FailurePath: [L14] static const float one_modf = 1.0; VAL [\old(one_modf)=2139095048, one_modf=1] [L106] float x = 1.0f / 0.0f; VAL [one_modf=1] [L107] float iptr = __VERIFIER_nondet_float(); VAL [__VERIFIER_nondet_float()=2139095043, iptr={8:0}, one_modf=1] [L108] CALL, EXPR modf_float(x, &iptr) VAL [\old(x)=2139095044, iptr={8:0}, one_modf=1] [L17] __int32_t i0, j0; VAL [\old(x)=2139095044, iptr={8:0}, iptr={8:0}, one_modf=1, x=2139095044] [L18] __uint32_t i; VAL [\old(x)=2139095044, iptr={8:0}, iptr={8:0}, one_modf=1, x=2139095044] [L20] ieee_float_shape_type gf_u; VAL [\old(x)=2139095044, gf_u={9:0}, iptr={8:0}, iptr={8:0}, one_modf=1, x=2139095044] [L21] gf_u.value = (x) VAL [\old(x)=2139095044, gf_u={9:0}, iptr={8:0}, iptr={8:0}, one_modf=1, x=2139095044] [L22] EXPR gf_u.word VAL [\old(x)=2139095044, gf_u={9:0}, gf_u.word=0, iptr={8:0}, iptr={8:0}, one_modf=1, x=2139095044] [L22] (i0) = gf_u.word VAL [\old(x)=2139095044, gf_u={9:0}, gf_u.word=0, i0=0, iptr={8:0}, iptr={8:0}, one_modf=1, x=2139095044] [L24] j0 = ((i0 >> 23) & 0xff) - 0x7f VAL [\old(x)=2139095044, i0=0, iptr={8:0}, iptr={8:0}, one_modf=1, x=2139095044] [L25] COND TRUE j0 < 23 VAL [\old(x)=2139095044, i0=0, iptr={8:0}, iptr={8:0}, j0=-1, one_modf=1, x=2139095044] [L26] COND TRUE j0 < 0 VAL [\old(x)=2139095044, i0=0, iptr={8:0}, iptr={8:0}, j0=-1, one_modf=1, x=2139095044] [L28] ieee_float_shape_type sf_u; VAL [\old(x)=2139095044, i0=0, iptr={8:0}, iptr={8:0}, j0=-1, one_modf=1, sf_u={10:0}, x=2139095044] [L29] sf_u.word = (i0 & 0x80000000) VAL [\old(x)=2139095044, i0=0, iptr={8:0}, iptr={8:0}, j0=-1, one_modf=1, sf_u={10:0}, x=2139095044] [L30] EXPR sf_u.value VAL [\old(x)=2139095044, i0=0, iptr={8:0}, iptr={8:0}, j0=-1, one_modf=1, sf_u={10:0}, sf_u.value=2139095046, x=2139095044] [L30] (*iptr) = sf_u.value VAL [\old(x)=2139095044, i0=0, iptr={8:0}, iptr={8:0}, j0=-1, one_modf=1, sf_u={10:0}, sf_u.value=2139095046, x=2139095044] [L32] return x; VAL [\old(x)=2139095044, \result=2139095044, i0=0, iptr={8:0}, iptr={8:0}, j0=-1, one_modf=1, x=2139095044] [L108] RET, EXPR modf_float(x, &iptr) VAL [iptr={8:0}, modf_float(x, &iptr)=2139095044, one_modf=1, x=2139095044] [L108] float res = modf_float(x, &iptr); VAL [iptr={8:0}, modf_float(x, &iptr)=2139095044, one_modf=1, res=2139095044, x=2139095044] [L111] EXPR \read(iptr) VAL [\read(iptr)=2139095046, iptr={8:0}, one_modf=1, res=2139095044, x=2139095044] [L111] CALL, EXPR isinf_float(iptr) VAL [\old(x)=2139095046, one_modf=1] [L89] __int32_t ix; VAL [\old(x)=2139095046, one_modf=1, x=2139095046] [L91] ieee_float_shape_type gf_u; VAL [\old(x)=2139095046, gf_u={3:0}, one_modf=1, x=2139095046] [L92] gf_u.value = (x) VAL [\old(x)=2139095046, gf_u={3:0}, one_modf=1, x=2139095046] [L93] EXPR gf_u.word VAL [\old(x)=2139095046, gf_u={3:0}, gf_u.word=0, one_modf=1, x=2139095046] [L93] (ix) = gf_u.word VAL [\old(x)=2139095046, gf_u={3:0}, gf_u.word=0, ix=0, one_modf=1, x=2139095046] [L95] ix &= 0x7fffffff VAL [\old(x)=2139095046, one_modf=1, x=2139095046] [L96] return ((ix) == 0x7f800000L); VAL [\old(x)=2139095046, \result=1, ix=2139095040, one_modf=1, x=2139095046] [L111] RET, EXPR isinf_float(iptr) VAL [\read(iptr)=2139095046, iptr={8:0}, isinf_float(iptr)=1, one_modf=1, res=2139095044, x=2139095044] [L111] isinf_float(iptr) && !(res == 0.0f && __signbit_float(res) == 0) VAL [\read(iptr)=2139095046, iptr={8:0}, isinf_float(iptr)=1, isinf_float(iptr) && !(res == 0.0f && __signbit_float(res) == 0)=1, one_modf=1, res=2139095044, x=2139095044] [L111] EXPR res == 0.0f && __signbit_float(res) == 0 VAL [\read(iptr)=2139095046, iptr={8:0}, isinf_float(iptr)=1, isinf_float(iptr) && !(res == 0.0f && __signbit_float(res) == 0)=1, one_modf=1, res=2139095044, res == 0.0f && __signbit_float(res) == 0=0, x=2139095044] [L111] isinf_float(iptr) && !(res == 0.0f && __signbit_float(res) == 0) VAL [\read(iptr)=2139095046, iptr={8:0}, isinf_float(iptr)=1, isinf_float(iptr) && !(res == 0.0f && __signbit_float(res) == 0)=1, one_modf=1, res=2139095044, res == 0.0f && __signbit_float(res) == 0=0, x=2139095044] [L111] COND TRUE isinf_float(iptr) && !(res == 0.0f && __signbit_float(res) == 0) VAL [\read(iptr)=2139095046, iptr={8:0}, isinf_float(iptr)=1, isinf_float(iptr) && !(res == 0.0f && __signbit_float(res) == 0)=1, one_modf=1, res=2139095044, res == 0.0f && __signbit_float(res) == 0=0, x=2139095044] [L112] CALL reach_error() VAL [one_modf=1] [L3] __assert_fail("0", "float_req_bl_1211a.c", 3, "reach_error") VAL [one_modf=1] - StatisticsResult: Ultimate Automizer benchmark data CFG has 7 procedures, 176 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 1.8s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 0.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 328 SDtfs, 46 SDslu, 335 SDs, 0 SdLazy, 443 SolverSat, 19 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 23 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=176occurred 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, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 212 NumberOfCodeBlocks, 212 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 129 ConstructedInterpolants, 0 QuantifiedInterpolants, 16063 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 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...