/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample FPandBPonlyIfFpWasNotPerfect -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.assert.codeblocks SMT_FEATURE_HEURISTIC --traceabstraction.assert.codeblocks.term.scoring.heuristic BIGGEST_EQUIVALENCE_CLASS --traceabstraction.assert.codeblocks.term.scoring.heuristic.partitioning.strategy FIXED_NUM_PARTITIONS --traceabstraction.assert.codeblocks.term.scoring.heuristic.number.of.partitions 4 -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/float-newlib/double_req_bl_1232a.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-d623d84 [2020-07-21 00:30:54,479 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-21 00:30:54,483 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-21 00:30:54,501 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-21 00:30:54,502 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-21 00:30:54,504 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-21 00:30:54,506 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-21 00:30:54,517 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-21 00:30:54,523 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-21 00:30:54,524 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-21 00:30:54,526 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-21 00:30:54,527 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-21 00:30:54,528 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-21 00:30:54,530 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-21 00:30:54,533 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-21 00:30:54,535 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-21 00:30:54,536 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-21 00:30:54,538 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-21 00:30:54,540 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-21 00:30:54,545 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-21 00:30:54,550 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-21 00:30:54,554 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-21 00:30:54,555 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-21 00:30:54,556 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-21 00:30:54,558 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-07-21 00:30:54,569 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-21 00:30:54,570 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-21 00:30:54,571 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-21 00:30:54,572 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-07-21 00:30:54,603 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-21 00:30:54,603 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-21 00:30:54,604 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-21 00:30:54,605 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-21 00:30:54,605 INFO L138 SettingsManager]: * Use SBE=true [2020-07-21 00:30:54,605 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-21 00:30:54,605 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-21 00:30:54,606 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-21 00:30:54,606 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-21 00:30:54,606 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-21 00:30:54,606 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-21 00:30:54,606 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-21 00:30:54,606 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-21 00:30:54,607 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-21 00:30:54,607 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-21 00:30:54,607 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-21 00:30:54,607 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-21 00:30:54,608 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-21 00:30:54,608 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-21 00:30:54,608 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-21 00:30:54,608 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-21 00:30:54,609 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-21 00:30:54,609 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-21 00:30:54,609 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-21 00:30:54,609 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-21 00:30:54,610 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-21 00:30:54,610 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 00:30:54,610 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-21 00:30:54,610 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-21 00:30:54,610 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> FPandBPonlyIfFpWasNotPerfect Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks -> SMT_FEATURE_HEURISTIC Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic -> BIGGEST_EQUIVALENCE_CLASS Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic Partitioning Strategy -> FIXED_NUM_PARTITIONS Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic number of partitions -> 4 [2020-07-21 00:30:54,916 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-21 00:30:54,929 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-21 00:30:54,933 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-21 00:30:54,934 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-21 00:30:54,935 INFO L275 PluginConnector]: CDTParser initialized [2020-07-21 00:30:54,935 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/double_req_bl_1232a.c [2020-07-21 00:30:54,999 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b623fe695/d30f4e1545014aa58dcaa331b958bee8/FLAG76f9a7a80 [2020-07-21 00:30:55,440 INFO L306 CDTParser]: Found 1 translation units. [2020-07-21 00:30:55,442 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/double_req_bl_1232a.c [2020-07-21 00:30:55,452 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b623fe695/d30f4e1545014aa58dcaa331b958bee8/FLAG76f9a7a80 [2020-07-21 00:30:55,794 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b623fe695/d30f4e1545014aa58dcaa331b958bee8 [2020-07-21 00:30:55,805 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-21 00:30:55,808 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-21 00:30:55,809 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-21 00:30:55,810 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-21 00:30:55,814 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-21 00:30:55,815 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 12:30:55" (1/1) ... [2020-07-21 00:30:55,818 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3171173f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 12:30:55, skipping insertion in model container [2020-07-21 00:30:55,819 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 12:30:55" (1/1) ... [2020-07-21 00:30:55,827 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-21 00:30:55,851 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-21 00:30:56,048 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-21 00:30:56,053 INFO L203 MainTranslator]: Completed pre-run [2020-07-21 00:30:56,170 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-21 00:30:56,198 INFO L208 MainTranslator]: Completed translation [2020-07-21 00:30:56,198 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 12:30:56 WrapperNode [2020-07-21 00:30:56,198 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-21 00:30:56,199 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-21 00:30:56,199 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-21 00:30:56,199 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-21 00:30:56,210 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 12:30:56" (1/1) ... [2020-07-21 00:30:56,210 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 12:30:56" (1/1) ... [2020-07-21 00:30:56,221 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 12:30:56" (1/1) ... [2020-07-21 00:30:56,221 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 12:30:56" (1/1) ... [2020-07-21 00:30:56,232 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 12:30:56" (1/1) ... [2020-07-21 00:30:56,238 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 12:30:56" (1/1) ... [2020-07-21 00:30:56,240 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 12:30:56" (1/1) ... [2020-07-21 00:30:56,243 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-21 00:30:56,244 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-21 00:30:56,244 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-21 00:30:56,244 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-21 00:30:56,245 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 12:30:56" (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 [2020-07-21 00:30:56,316 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-21 00:30:56,317 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-21 00:30:56,317 INFO L138 BoogieDeclarations]: Found implementation of procedure isnan_double [2020-07-21 00:30:56,317 INFO L138 BoogieDeclarations]: Found implementation of procedure __fpclassify_double [2020-07-21 00:30:56,317 INFO L138 BoogieDeclarations]: Found implementation of procedure fmin_double [2020-07-21 00:30:56,317 INFO L138 BoogieDeclarations]: Found implementation of procedure __signbit_double [2020-07-21 00:30:56,317 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-21 00:30:56,318 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-21 00:30:56,318 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_double [2020-07-21 00:30:56,318 INFO L130 BoogieDeclarations]: Found specification of procedure isnan_double [2020-07-21 00:30:56,318 INFO L130 BoogieDeclarations]: Found specification of procedure __fpclassify_double [2020-07-21 00:30:56,318 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-07-21 00:30:56,318 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2020-07-21 00:30:56,319 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-07-21 00:30:56,319 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-07-21 00:30:56,319 INFO L130 BoogieDeclarations]: Found specification of procedure fmin_double [2020-07-21 00:30:56,319 INFO L130 BoogieDeclarations]: Found specification of procedure __signbit_double [2020-07-21 00:30:56,319 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-21 00:30:56,319 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-21 00:30:56,320 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-21 00:30:56,320 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2020-07-21 00:30:56,320 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-07-21 00:30:56,643 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-21 00:30:56,643 INFO L295 CfgBuilder]: Removed 4 assume(true) statements. [2020-07-21 00:30:56,647 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 12:30:56 BoogieIcfgContainer [2020-07-21 00:30:56,647 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-21 00:30:56,648 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-21 00:30:56,649 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-21 00:30:56,652 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-21 00:30:56,652 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.07 12:30:55" (1/3) ... [2020-07-21 00:30:56,653 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1efe14c5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 12:30:56, skipping insertion in model container [2020-07-21 00:30:56,653 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 12:30:56" (2/3) ... [2020-07-21 00:30:56,653 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1efe14c5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 12:30:56, skipping insertion in model container [2020-07-21 00:30:56,654 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 12:30:56" (3/3) ... [2020-07-21 00:30:56,655 INFO L109 eAbstractionObserver]: Analyzing ICFG double_req_bl_1232a.c [2020-07-21 00:30:56,675 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBPonlyIfFpWasNotPerfect Determinization: PREDICATE_ABSTRACTION [2020-07-21 00:30:56,691 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-21 00:30:56,714 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-21 00:30:56,740 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-21 00:30:56,740 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-21 00:30:56,740 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBPonlyIfFpWasNotPerfect [2020-07-21 00:30:56,741 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-21 00:30:56,741 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-21 00:30:56,741 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-21 00:30:56,741 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-21 00:30:56,741 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-21 00:30:56,762 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states. [2020-07-21 00:30:56,768 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-07-21 00:30:56,769 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 00:30:56,770 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] [2020-07-21 00:30:56,770 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 00:30:56,777 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 00:30:56,777 INFO L82 PathProgramCache]: Analyzing trace with hash -1786760399, now seen corresponding path program 1 times [2020-07-21 00:30:56,786 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 00:30:56,787 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1919449472] [2020-07-21 00:30:56,788 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 00:30:56,898 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 2 check-sat command(s) [2020-07-21 00:30:56,899 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 00:30:56,902 INFO L263 TraceCheckSpWp]: Trace formula consists of 64 conjuncts, 1 conjunts are in the unsatisfiable core [2020-07-21 00:30:56,908 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 00:30:56,934 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 00:30:56,935 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 00:30:56,936 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1919449472] [2020-07-21 00:30:56,937 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 00:30:56,937 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-07-21 00:30:56,938 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [754535142] [2020-07-21 00:30:56,944 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-07-21 00:30:56,944 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 00:30:56,954 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-07-21 00:30:56,955 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-07-21 00:30:56,957 INFO L87 Difference]: Start difference. First operand 44 states. Second operand 2 states. [2020-07-21 00:30:56,985 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 00:30:56,985 INFO L93 Difference]: Finished difference Result 79 states and 107 transitions. [2020-07-21 00:30:56,986 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-07-21 00:30:56,987 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 22 [2020-07-21 00:30:56,988 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 00:30:56,997 INFO L225 Difference]: With dead ends: 79 [2020-07-21 00:30:56,997 INFO L226 Difference]: Without dead ends: 40 [2020-07-21 00:30:57,001 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-07-21 00:30:57,018 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2020-07-21 00:30:57,043 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 40. [2020-07-21 00:30:57,044 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 40 states. [2020-07-21 00:30:57,046 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 48 transitions. [2020-07-21 00:30:57,048 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 48 transitions. Word has length 22 [2020-07-21 00:30:57,049 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 00:30:57,049 INFO L479 AbstractCegarLoop]: Abstraction has 40 states and 48 transitions. [2020-07-21 00:30:57,049 INFO L480 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-07-21 00:30:57,050 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 48 transitions. [2020-07-21 00:30:57,052 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2020-07-21 00:30:57,052 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 00:30:57,052 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] [2020-07-21 00:30:57,267 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 00:30:57,267 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 00:30:57,268 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 00:30:57,269 INFO L82 PathProgramCache]: Analyzing trace with hash -952976765, now seen corresponding path program 1 times [2020-07-21 00:30:57,269 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 00:30:57,270 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1248942013] [2020-07-21 00:30:57,271 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 00:30:57,365 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 3 check-sat command(s) [2020-07-21 00:30:57,365 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 00:30:57,368 INFO L263 TraceCheckSpWp]: Trace formula consists of 88 conjuncts, 3 conjunts are in the unsatisfiable core [2020-07-21 00:30:57,371 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 00:30:57,422 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 00:30:57,422 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 00:30:57,423 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1248942013] [2020-07-21 00:30:57,423 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 00:30:57,423 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-07-21 00:30:57,424 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1949285687] [2020-07-21 00:30:57,425 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-07-21 00:30:57,426 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 00:30:57,426 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-07-21 00:30:57,426 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-07-21 00:30:57,426 INFO L87 Difference]: Start difference. First operand 40 states and 48 transitions. Second operand 4 states. [2020-07-21 00:30:57,460 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 00:30:57,460 INFO L93 Difference]: Finished difference Result 59 states and 69 transitions. [2020-07-21 00:30:57,461 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-07-21 00:30:57,461 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 23 [2020-07-21 00:30:57,461 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 00:30:57,464 INFO L225 Difference]: With dead ends: 59 [2020-07-21 00:30:57,464 INFO L226 Difference]: Without dead ends: 44 [2020-07-21 00:30:57,466 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-07-21 00:30:57,466 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2020-07-21 00:30:57,475 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 44. [2020-07-21 00:30:57,476 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 44 states. [2020-07-21 00:30:57,477 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 53 transitions. [2020-07-21 00:30:57,478 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 53 transitions. Word has length 23 [2020-07-21 00:30:57,478 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 00:30:57,478 INFO L479 AbstractCegarLoop]: Abstraction has 44 states and 53 transitions. [2020-07-21 00:30:57,478 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-07-21 00:30:57,479 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 53 transitions. [2020-07-21 00:30:57,480 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2020-07-21 00:30:57,480 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 00:30:57,480 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] [2020-07-21 00:30:57,693 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 00:30:57,695 INFO L427 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 00:30:57,696 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 00:30:57,696 INFO L82 PathProgramCache]: Analyzing trace with hash -1944362408, now seen corresponding path program 1 times [2020-07-21 00:30:57,696 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 00:30:57,697 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [896279201] [2020-07-21 00:30:57,697 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 00:30:57,794 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 3 check-sat command(s) [2020-07-21 00:30:57,795 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 00:30:57,797 INFO L263 TraceCheckSpWp]: Trace formula consists of 94 conjuncts, 3 conjunts are in the unsatisfiable core [2020-07-21 00:30:57,802 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 00:30:57,838 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 00:30:57,838 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 00:30:57,838 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [896279201] [2020-07-21 00:30:57,839 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 00:30:57,839 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-07-21 00:30:57,839 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1271219524] [2020-07-21 00:30:57,840 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-07-21 00:30:57,841 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 00:30:57,841 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-07-21 00:30:57,842 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-07-21 00:30:57,842 INFO L87 Difference]: Start difference. First operand 44 states and 53 transitions. Second operand 4 states. [2020-07-21 00:30:57,882 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 00:30:57,884 INFO L93 Difference]: Finished difference Result 63 states and 74 transitions. [2020-07-21 00:30:57,884 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-07-21 00:30:57,884 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 26 [2020-07-21 00:30:57,885 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 00:30:57,886 INFO L225 Difference]: With dead ends: 63 [2020-07-21 00:30:57,886 INFO L226 Difference]: Without dead ends: 48 [2020-07-21 00:30:57,888 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-07-21 00:30:57,889 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states. [2020-07-21 00:30:57,896 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 44. [2020-07-21 00:30:57,896 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 44 states. [2020-07-21 00:30:57,898 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 53 transitions. [2020-07-21 00:30:57,898 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 53 transitions. Word has length 26 [2020-07-21 00:30:57,899 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 00:30:57,899 INFO L479 AbstractCegarLoop]: Abstraction has 44 states and 53 transitions. [2020-07-21 00:30:57,899 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-07-21 00:30:57,899 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 53 transitions. [2020-07-21 00:30:57,900 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2020-07-21 00:30:57,900 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 00:30:57,901 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] [2020-07-21 00:30:58,114 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 00:30:58,115 INFO L427 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 00:30:58,116 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 00:30:58,116 INFO L82 PathProgramCache]: Analyzing trace with hash 553653529, now seen corresponding path program 1 times [2020-07-21 00:30:58,117 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 00:30:58,118 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2050207783] [2020-07-21 00:30:58,118 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 00:30:58,209 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-21 00:30:58,210 INFO L229 tOrderPrioritization]: Conjunction of SSA is sat [2020-07-21 00:30:58,210 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-21 00:30:58,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-21 00:30:58,228 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-21 00:30:58,252 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-07-21 00:30:58,252 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-07-21 00:30:58,465 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 00:30:58,500 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.07 12:30:58 BoogieIcfgContainer [2020-07-21 00:30:58,500 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-21 00:30:58,503 INFO L168 Benchmark]: Toolchain (without parser) took 2695.82 ms. Allocated memory was 138.4 MB in the beginning and 235.4 MB in the end (delta: 97.0 MB). Free memory was 103.2 MB in the beginning and 195.4 MB in the end (delta: -92.2 MB). Peak memory consumption was 4.8 MB. Max. memory is 7.1 GB. [2020-07-21 00:30:58,504 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 138.4 MB. Free memory was 121.5 MB in the beginning and 121.3 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. [2020-07-21 00:30:58,505 INFO L168 Benchmark]: CACSL2BoogieTranslator took 389.39 ms. Allocated memory was 138.4 MB in the beginning and 202.9 MB in the end (delta: 64.5 MB). Free memory was 102.7 MB in the beginning and 181.0 MB in the end (delta: -78.3 MB). Peak memory consumption was 23.4 MB. Max. memory is 7.1 GB. [2020-07-21 00:30:58,506 INFO L168 Benchmark]: Boogie Preprocessor took 44.54 ms. Allocated memory is still 202.9 MB. Free memory was 181.0 MB in the beginning and 178.9 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 7.1 GB. [2020-07-21 00:30:58,507 INFO L168 Benchmark]: RCFGBuilder took 403.44 ms. Allocated memory is still 202.9 MB. Free memory was 178.9 MB in the beginning and 157.7 MB in the end (delta: 21.2 MB). Peak memory consumption was 21.2 MB. Max. memory is 7.1 GB. [2020-07-21 00:30:58,508 INFO L168 Benchmark]: TraceAbstraction took 1852.06 ms. Allocated memory was 202.9 MB in the beginning and 235.4 MB in the end (delta: 32.5 MB). Free memory was 157.0 MB in the beginning and 195.4 MB in the end (delta: -38.4 MB). There was no memory consumed. Max. memory is 7.1 GB. [2020-07-21 00:30:58,512 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 138.4 MB. Free memory was 121.5 MB in the beginning and 121.3 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 389.39 ms. Allocated memory was 138.4 MB in the beginning and 202.9 MB in the end (delta: 64.5 MB). Free memory was 102.7 MB in the beginning and 181.0 MB in the end (delta: -78.3 MB). Peak memory consumption was 23.4 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 44.54 ms. Allocated memory is still 202.9 MB. Free memory was 181.0 MB in the beginning and 178.9 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 7.1 GB. * RCFGBuilder took 403.44 ms. Allocated memory is still 202.9 MB. Free memory was 178.9 MB in the beginning and 157.7 MB in the end (delta: 21.2 MB). Peak memory consumption was 21.2 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1852.06 ms. Allocated memory was 202.9 MB in the beginning and 235.4 MB in the end (delta: 32.5 MB). Free memory was 157.0 MB in the beginning and 195.4 MB in the end (delta: -38.4 MB). There was no memory consumed. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 80]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryDOUBLEComparisonOperation at line 79, overapproximation of someUnaryDOUBLEoperation at line 75. Possible FailurePath: [L74] double x = 0.0; [L75] double y = -0.0; VAL [x=0] [L76] CALL, EXPR fmin_double(x, y) VAL [\old(x)=0, \old(y)=4] [L46] CALL, EXPR __fpclassify_double(x) VAL [\old(x)=0] [L19] __uint32_t msw, lsw; VAL [\old(x)=0, x=0] [L22] ieee_double_shape_type ew_u; [L23] ew_u.value = (x) [L24] EXPR ew_u.parts.msw [L24] (msw) = ew_u.parts.msw [L25] EXPR ew_u.parts.lsw [L25] (lsw) = ew_u.parts.lsw [L28-L29] COND FALSE !((msw == 0x00000000 && lsw == 0x00000000) || (msw == 0x80000000 && lsw == 0x00000000)) VAL [\old(x)=0, lsw=-1, msw=-2148532223, x=0] [L31-L32] COND FALSE !((msw >= 0x00100000 && msw <= 0x7fefffff) || (msw >= 0x80100000 && msw <= 0xffefffff)) VAL [\old(x)=0, lsw=-1, msw=-2148532223, x=0] [L34-L35] COND FALSE !(( msw <= 0x000fffff) || (msw >= 0x80000000 && msw <= 0x800fffff)) VAL [\old(x)=0, lsw=-1, msw=-2148532223, x=0] [L38-L39] COND FALSE !((msw == 0x7ff00000 && lsw == 0x00000000) || (msw == 0xfff00000 && lsw == 0x00000000)) [L42] return 0; VAL [\old(x)=0, \result=0, lsw=-1, msw=-2148532223, x=0] [L46] RET, EXPR __fpclassify_double(x) VAL [\old(x)=0, \old(y)=4, __fpclassify_double(x)=0, x=0, y=4] [L46] COND TRUE __fpclassify_double(x) == 0 [L47] return y; VAL [\old(x)=0, \old(y)=4, \result=4, x=0, y=4] [L76] RET, EXPR fmin_double(x, y) VAL [fmin_double(x, y)=4, x=0, y=4] [L76] double res = fmin_double(x, y); [L79] EXPR res == -0.0 && __signbit_double(res) == 1 VAL [res=4, res == -0.0 && __signbit_double(res) == 1=0, x=0, y=4] [L79] COND TRUE !(res == -0.0 && __signbit_double(res) == 1) [L80] __VERIFIER_error() VAL [res=4, x=0, y=4] - StatisticsResult: Ultimate Automizer benchmark data CFG has 7 procedures, 47 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 1.7s, OverallIterations: 4, TraceHistogramMax: 1, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 144 SDtfs, 0 SDslu, 172 SDs, 0 SdLazy, 17 SolverSat, 5 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 68 GetRequests, 64 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=44occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 4 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 97 NumberOfCodeBlocks, 77 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 68 ConstructedInterpolants, 0 QuantifiedInterpolants, 1926 SizeOfPredicates, 0 NumberOfNonLiveVariables, 246 ConjunctsInSsa, 7 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 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...