/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data --core.log.level.for.class de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationJordan_32.epf -i ../../../trunk/examples/svcomp/float-newlib/double_req_bl_0683b.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-d966a43 [2022-01-31 22:58:56,680 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-31 22:58:56,682 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-31 22:58:56,752 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-01-31 22:58:56,753 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-01-31 22:58:56,754 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-01-31 22:58:56,755 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-01-31 22:58:56,756 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-01-31 22:58:56,758 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-01-31 22:58:56,759 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-01-31 22:58:56,763 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-01-31 22:58:56,766 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-01-31 22:58:56,766 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-01-31 22:58:56,772 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-01-31 22:58:56,773 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-01-31 22:58:56,775 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-01-31 22:58:56,776 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-01-31 22:58:56,777 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-01-31 22:58:56,787 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-01-31 22:58:56,790 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-01-31 22:58:56,791 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-01-31 22:58:56,795 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-01-31 22:58:56,796 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-01-31 22:58:56,797 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-01-31 22:58:56,799 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-01-31 22:58:56,799 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-01-31 22:58:56,799 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-01-31 22:58:56,800 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-01-31 22:58:56,800 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-01-31 22:58:56,801 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-01-31 22:58:56,801 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-01-31 22:58:56,801 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-01-31 22:58:56,802 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-01-31 22:58:56,802 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-01-31 22:58:56,803 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-01-31 22:58:56,803 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-01-31 22:58:56,804 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-01-31 22:58:56,804 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-01-31 22:58:56,804 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-31 22:58:56,805 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-31 22:58:56,805 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-31 22:58:56,809 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationJordan_32.epf [2022-01-31 22:58:56,821 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-31 22:58:56,821 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-31 22:58:56,823 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-31 22:58:56,823 INFO L138 SettingsManager]: * sizeof long=4 [2022-01-31 22:58:56,823 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-31 22:58:56,823 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-01-31 22:58:56,823 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-31 22:58:56,823 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-31 22:58:56,824 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-31 22:58:56,824 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-31 22:58:56,824 INFO L138 SettingsManager]: * sizeof long double=12 [2022-01-31 22:58:56,825 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-31 22:58:56,825 INFO L138 SettingsManager]: * Use constant arrays=true [2022-01-31 22:58:56,825 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-31 22:58:56,825 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-31 22:58:56,825 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-31 22:58:56,825 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-01-31 22:58:56,825 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-31 22:58:56,825 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-31 22:58:56,826 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-31 22:58:56,826 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2022-01-31 22:58:56,826 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-01-31 22:58:56,826 INFO L138 SettingsManager]: * Loop acceleration method that is used by accelerated interpolation=JORDAN [2022-01-31 22:58:56,826 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-01-31 22:58:57,037 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-31 22:58:57,056 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-31 22:58:57,059 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-31 22:58:57,059 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-31 22:58:57,060 INFO L275 PluginConnector]: CDTParser initialized [2022-01-31 22:58:57,061 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/double_req_bl_0683b.c [2022-01-31 22:58:57,118 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a84262740/3141c6ab66c84e0fac775057734f40db/FLAG521c107fe [2022-01-31 22:58:57,546 INFO L306 CDTParser]: Found 1 translation units. [2022-01-31 22:58:57,546 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/double_req_bl_0683b.c [2022-01-31 22:58:57,564 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a84262740/3141c6ab66c84e0fac775057734f40db/FLAG521c107fe [2022-01-31 22:58:57,922 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a84262740/3141c6ab66c84e0fac775057734f40db [2022-01-31 22:58:57,924 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-31 22:58:57,926 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2022-01-31 22:58:57,927 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-31 22:58:57,927 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-31 22:58:57,931 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-31 22:58:57,931 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.01 10:58:57" (1/1) ... [2022-01-31 22:58:57,933 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@260892ad and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 10:58:57, skipping insertion in model container [2022-01-31 22:58:57,933 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.01 10:58:57" (1/1) ... [2022-01-31 22:58:57,938 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-31 22:58:57,964 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-31 22:58:58,184 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/double_req_bl_0683b.c[7144,7157] [2022-01-31 22:58:58,186 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-31 22:58:58,202 INFO L203 MainTranslator]: Completed pre-run [2022-01-31 22:58:58,248 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/double_req_bl_0683b.c[7144,7157] [2022-01-31 22:58:58,248 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-31 22:58:58,270 INFO L208 MainTranslator]: Completed translation [2022-01-31 22:58:58,271 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 10:58:58 WrapperNode [2022-01-31 22:58:58,271 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-31 22:58:58,272 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-31 22:58:58,272 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-31 22:58:58,272 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-31 22:58:58,282 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 10:58:58" (1/1) ... [2022-01-31 22:58:58,282 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 10:58:58" (1/1) ... [2022-01-31 22:58:58,303 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 10:58:58" (1/1) ... [2022-01-31 22:58:58,304 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 10:58:58" (1/1) ... [2022-01-31 22:58:58,333 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 10:58:58" (1/1) ... [2022-01-31 22:58:58,355 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 10:58:58" (1/1) ... [2022-01-31 22:58:58,357 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 10:58:58" (1/1) ... [2022-01-31 22:58:58,361 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-31 22:58:58,361 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-31 22:58:58,362 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-31 22:58:58,362 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-31 22:58:58,375 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 10:58:58" (1/1) ... [2022-01-31 22:58:58,381 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-31 22:58:58,392 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-31 22:58:58,412 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-01-31 22:58:58,433 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-01-31 22:58:58,452 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2022-01-31 22:58:58,453 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-31 22:58:58,453 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2022-01-31 22:58:58,453 INFO L138 BoogieDeclarations]: Found implementation of procedure fabs_double [2022-01-31 22:58:58,453 INFO L138 BoogieDeclarations]: Found implementation of procedure atan_double [2022-01-31 22:58:58,454 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_atan2 [2022-01-31 22:58:58,454 INFO L138 BoogieDeclarations]: Found implementation of procedure isinf_double [2022-01-31 22:58:58,454 INFO L138 BoogieDeclarations]: Found implementation of procedure isfinite_double [2022-01-31 22:58:58,454 INFO L138 BoogieDeclarations]: Found implementation of procedure __signbit_double [2022-01-31 22:58:58,454 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2022-01-31 22:58:58,455 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2022-01-31 22:58:58,455 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2022-01-31 22:58:58,455 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2022-01-31 22:58:58,455 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-31 22:58:58,456 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_double [2022-01-31 22:58:58,458 INFO L130 BoogieDeclarations]: Found specification of procedure fabs_double [2022-01-31 22:58:58,458 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-01-31 22:58:58,458 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2022-01-31 22:58:58,458 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-01-31 22:58:58,458 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-01-31 22:58:58,458 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-01-31 22:58:58,458 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2022-01-31 22:58:58,458 INFO L130 BoogieDeclarations]: Found specification of procedure atan_double [2022-01-31 22:58:58,459 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_atan2 [2022-01-31 22:58:58,459 INFO L130 BoogieDeclarations]: Found specification of procedure isinf_double [2022-01-31 22:58:58,459 INFO L130 BoogieDeclarations]: Found specification of procedure isfinite_double [2022-01-31 22:58:58,459 INFO L130 BoogieDeclarations]: Found specification of procedure __signbit_double [2022-01-31 22:58:58,459 INFO L130 BoogieDeclarations]: Found specification of procedure main [2022-01-31 22:58:58,459 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2022-01-31 22:58:58,459 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-01-31 22:58:58,459 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2022-01-31 22:58:58,459 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-31 22:58:58,575 INFO L234 CfgBuilder]: Building ICFG [2022-01-31 22:58:58,577 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-31 22:58:59,058 INFO L275 CfgBuilder]: Performing block encoding [2022-01-31 22:58:59,065 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-31 22:58:59,065 INFO L299 CfgBuilder]: Removed 22 assume(true) statements. [2022-01-31 22:58:59,067 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.01 10:58:59 BoogieIcfgContainer [2022-01-31 22:58:59,067 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-31 22:58:59,069 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-31 22:58:59,069 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-31 22:58:59,077 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-31 22:58:59,077 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 31.01 10:58:57" (1/3) ... [2022-01-31 22:58:59,078 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@98ea819 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.01 10:58:59, skipping insertion in model container [2022-01-31 22:58:59,078 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 10:58:58" (2/3) ... [2022-01-31 22:58:59,079 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@98ea819 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.01 10:58:59, skipping insertion in model container [2022-01-31 22:58:59,079 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.01 10:58:59" (3/3) ... [2022-01-31 22:58:59,080 INFO L111 eAbstractionObserver]: Analyzing ICFG double_req_bl_0683b.c [2022-01-31 22:58:59,085 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2022-01-31 22:58:59,085 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-01-31 22:58:59,138 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-31 22:58:59,145 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=AcceleratedInterpolation, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=All, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=JORDAN [2022-01-31 22:58:59,146 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-01-31 22:58:59,166 INFO L276 IsEmpty]: Start isEmpty. Operand has 129 states, 109 states have (on average 1.5963302752293578) internal successors, (174), 110 states have internal predecessors, (174), 10 states have call successors, (10), 8 states have call predecessors, (10), 8 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2022-01-31 22:58:59,184 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2022-01-31 22:58:59,185 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 22:58:59,186 INFO L514 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] [2022-01-31 22:58:59,186 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 22:58:59,191 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 22:58:59,191 INFO L85 PathProgramCache]: Analyzing trace with hash 1657846494, now seen corresponding path program 1 times [2022-01-31 22:58:59,197 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 22:58:59,198 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [647559989] [2022-01-31 22:58:59,198 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 22:58:59,211 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 22:58:59,258 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-01-31 22:58:59,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:58:59,462 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 22:58:59,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:58:59,504 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-01-31 22:58:59,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:58:59,514 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-01-31 22:58:59,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:58:59,523 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-31 22:58:59,524 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 22:58:59,525 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [647559989] [2022-01-31 22:58:59,526 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [647559989] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 22:58:59,526 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 22:58:59,526 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-31 22:58:59,527 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1976012554] [2022-01-31 22:58:59,528 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 22:58:59,531 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-31 22:58:59,532 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 22:58:59,550 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-31 22:58:59,551 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-31 22:58:59,553 INFO L87 Difference]: Start difference. First operand has 129 states, 109 states have (on average 1.5963302752293578) internal successors, (174), 110 states have internal predecessors, (174), 10 states have call successors, (10), 8 states have call predecessors, (10), 8 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) Second operand has 4 states, 4 states have (on average 5.25) internal successors, (21), 2 states have internal predecessors, (21), 2 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-01-31 22:59:00,086 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 22:59:00,086 INFO L93 Difference]: Finished difference Result 250 states and 387 transitions. [2022-01-31 22:59:00,087 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-31 22:59:00,089 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.25) internal successors, (21), 2 states have internal predecessors, (21), 2 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 28 [2022-01-31 22:59:00,089 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 22:59:00,099 INFO L225 Difference]: With dead ends: 250 [2022-01-31 22:59:00,100 INFO L226 Difference]: Without dead ends: 124 [2022-01-31 22:59:00,107 INFO L932 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 [2022-01-31 22:59:00,110 INFO L933 BasicCegarLoop]: 155 mSDtfsCounter, 150 mSDsluCounter, 2 mSDsCounter, 0 mSdLazyCounter, 171 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 157 SdHoareTripleChecker+Valid, 157 SdHoareTripleChecker+Invalid, 197 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 171 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-31 22:59:00,111 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [157 Valid, 157 Invalid, 197 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 171 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-31 22:59:00,124 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 124 states. [2022-01-31 22:59:00,161 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 124 to 124. [2022-01-31 22:59:00,163 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 124 states, 106 states have (on average 1.3773584905660377) internal successors, (146), 106 states have internal predecessors, (146), 10 states have call successors, (10), 8 states have call predecessors, (10), 7 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2022-01-31 22:59:00,164 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 124 states to 124 states and 165 transitions. [2022-01-31 22:59:00,166 INFO L78 Accepts]: Start accepts. Automaton has 124 states and 165 transitions. Word has length 28 [2022-01-31 22:59:00,166 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 22:59:00,166 INFO L470 AbstractCegarLoop]: Abstraction has 124 states and 165 transitions. [2022-01-31 22:59:00,166 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.25) internal successors, (21), 2 states have internal predecessors, (21), 2 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-01-31 22:59:00,167 INFO L276 IsEmpty]: Start isEmpty. Operand 124 states and 165 transitions. [2022-01-31 22:59:00,168 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-01-31 22:59:00,168 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 22:59:00,168 INFO L514 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] [2022-01-31 22:59:00,168 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-01-31 22:59:00,168 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 22:59:00,169 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 22:59:00,169 INFO L85 PathProgramCache]: Analyzing trace with hash 709043947, now seen corresponding path program 1 times [2022-01-31 22:59:00,169 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 22:59:00,169 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [934898676] [2022-01-31 22:59:00,169 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 22:59:00,170 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 22:59:00,172 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-01-31 22:59:00,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:59:00,265 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 22:59:00,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:59:00,286 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-01-31 22:59:00,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:59:00,300 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-01-31 22:59:00,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:59:00,316 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-31 22:59:00,317 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 22:59:00,317 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [934898676] [2022-01-31 22:59:00,317 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [934898676] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 22:59:00,317 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 22:59:00,317 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-31 22:59:00,317 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [60593738] [2022-01-31 22:59:00,318 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 22:59:00,318 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-31 22:59:00,318 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 22:59:00,319 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-31 22:59:00,319 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-31 22:59:00,319 INFO L87 Difference]: Start difference. First operand 124 states and 165 transitions. Second operand has 5 states, 5 states have (on average 4.8) internal successors, (24), 3 states have internal predecessors, (24), 2 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-01-31 22:59:00,835 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 22:59:00,835 INFO L93 Difference]: Finished difference Result 225 states and 306 transitions. [2022-01-31 22:59:00,835 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-31 22:59:00,836 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 4.8) internal successors, (24), 3 states have internal predecessors, (24), 2 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 31 [2022-01-31 22:59:00,837 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 22:59:00,845 INFO L225 Difference]: With dead ends: 225 [2022-01-31 22:59:00,845 INFO L226 Difference]: Without dead ends: 124 [2022-01-31 22:59:00,850 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2022-01-31 22:59:00,851 INFO L933 BasicCegarLoop]: 149 mSDtfsCounter, 146 mSDsluCounter, 2 mSDsCounter, 0 mSdLazyCounter, 327 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 153 SdHoareTripleChecker+Valid, 151 SdHoareTripleChecker+Invalid, 353 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 327 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-01-31 22:59:00,851 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [153 Valid, 151 Invalid, 353 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 327 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-01-31 22:59:00,852 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 124 states. [2022-01-31 22:59:00,878 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 124 to 124. [2022-01-31 22:59:00,879 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 124 states, 106 states have (on average 1.3679245283018868) internal successors, (145), 106 states have internal predecessors, (145), 10 states have call successors, (10), 8 states have call predecessors, (10), 7 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2022-01-31 22:59:00,880 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 124 states to 124 states and 164 transitions. [2022-01-31 22:59:00,881 INFO L78 Accepts]: Start accepts. Automaton has 124 states and 164 transitions. Word has length 31 [2022-01-31 22:59:00,881 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 22:59:00,882 INFO L470 AbstractCegarLoop]: Abstraction has 124 states and 164 transitions. [2022-01-31 22:59:00,882 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 4.8) internal successors, (24), 3 states have internal predecessors, (24), 2 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-01-31 22:59:00,882 INFO L276 IsEmpty]: Start isEmpty. Operand 124 states and 164 transitions. [2022-01-31 22:59:00,884 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-31 22:59:00,884 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 22:59:00,885 INFO L514 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] [2022-01-31 22:59:00,885 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-01-31 22:59:00,885 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 22:59:00,885 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 22:59:00,886 INFO L85 PathProgramCache]: Analyzing trace with hash -1383023855, now seen corresponding path program 1 times [2022-01-31 22:59:00,886 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 22:59:00,886 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [992779518] [2022-01-31 22:59:00,886 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 22:59:00,887 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 22:59:00,888 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-01-31 22:59:01,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-01-31 22:59:01,040 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-01-31 22:59:01,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-01-31 22:59:01,124 INFO L133 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2022-01-31 22:59:01,124 INFO L628 BasicCegarLoop]: Counterexample is feasible [2022-01-31 22:59:01,127 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location mainErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-01-31 22:59:01,128 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-01-31 22:59:01,131 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2022-01-31 22:59:01,133 INFO L180 ceAbstractionStarter]: Computing trace abstraction results [2022-01-31 22:59:01,146 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 31.01 10:59:01 BoogieIcfgContainer [2022-01-31 22:59:01,146 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-01-31 22:59:01,147 INFO L158 Benchmark]: Toolchain (without parser) took 3221.41ms. Allocated memory was 186.6MB in the beginning and 232.8MB in the end (delta: 46.1MB). Free memory was 130.3MB in the beginning and 121.4MB in the end (delta: 8.8MB). Peak memory consumption was 55.5MB. Max. memory is 8.0GB. [2022-01-31 22:59:01,147 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 186.6MB. Free memory is still 146.8MB. There was no memory consumed. Max. memory is 8.0GB. [2022-01-31 22:59:01,148 INFO L158 Benchmark]: CACSL2BoogieTranslator took 344.02ms. Allocated memory was 186.6MB in the beginning and 232.8MB in the end (delta: 46.1MB). Free memory was 130.1MB in the beginning and 200.2MB in the end (delta: -70.1MB). Peak memory consumption was 10.1MB. Max. memory is 8.0GB. [2022-01-31 22:59:01,148 INFO L158 Benchmark]: Boogie Preprocessor took 88.85ms. Allocated memory is still 232.8MB. Free memory was 200.2MB in the beginning and 197.2MB in the end (delta: 3.0MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. [2022-01-31 22:59:01,149 INFO L158 Benchmark]: RCFGBuilder took 705.79ms. Allocated memory is still 232.8MB. Free memory was 197.2MB in the beginning and 170.4MB in the end (delta: 26.7MB). Peak memory consumption was 26.2MB. Max. memory is 8.0GB. [2022-01-31 22:59:01,149 INFO L158 Benchmark]: TraceAbstraction took 2077.86ms. Allocated memory is still 232.8MB. Free memory was 169.9MB in the beginning and 121.4MB in the end (delta: 48.5MB). Peak memory consumption was 49.0MB. Max. memory is 8.0GB. [2022-01-31 22:59:01,151 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16ms. Allocated memory is still 186.6MB. Free memory is still 146.8MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 344.02ms. Allocated memory was 186.6MB in the beginning and 232.8MB in the end (delta: 46.1MB). Free memory was 130.1MB in the beginning and 200.2MB in the end (delta: -70.1MB). Peak memory consumption was 10.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 88.85ms. Allocated memory is still 232.8MB. Free memory was 200.2MB in the beginning and 197.2MB in the end (delta: 3.0MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. * RCFGBuilder took 705.79ms. Allocated memory is still 232.8MB. Free memory was 197.2MB in the beginning and 170.4MB in the end (delta: 26.7MB). Peak memory consumption was 26.2MB. Max. memory is 8.0GB. * TraceAbstraction took 2077.86ms. Allocated memory is still 232.8MB. Free memory was 169.9MB in the beginning and 121.4MB in the end (delta: 48.5MB). Peak memory consumption was 49.0MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 300]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of bitwiseOr at line 164, overapproximation of someUnaryDOUBLEoperation at line 54, overapproximation of someBinaryArithmeticDOUBLEoperation at line 165, overapproximation of bitwiseAnd at line 162, overapproximation of someBinaryDOUBLEComparisonOperation at line 299. Possible FailurePath: [L39-L44] static const double atanhi_atan[] = { 4.63647609000806093515e-01, 7.85398163397448278999e-01, 9.82793723247329054082e-01, 1.57079632679489655800e+00, }; [L46-L51] static const double atanlo_atan[] = { 2.26987774529616870924e-17, 3.06161699786838301793e-17, 1.39033110312309984516e-17, 6.12323399573676603587e-17, }; [L53-L60] static const double aT_atan[] = { 3.33333333333329318027e-01, -1.99999999998764832476e-01, 1.42857142725034663711e-01, -1.11111104054623557880e-01, 9.09088713343650656196e-02, -7.69187620504482999495e-02, 6.66107313738753120669e-02, -5.83357013379057348645e-02, 4.97687799461593236017e-02, -3.65315727442169155270e-02, 1.62858201153657823623e-02, }; [L62-L64] static const double one_atan = 1.0, pi_o_4 = 7.8539816339744827900E-01, pi_o_2 = 1.5707963267948965580E+00, pi = 3.1415926535897931160E+00, huge_atan = 1.0e300; [L141-L142] static const double tiny_atan2 = 1.0e-300, zero_atan2 = 0.0, pi_lo_atan2 = 1.2246467991473531772E-16; [L291] double x = 1.0 / 0.0; [L292] double y = __VERIFIER_nondet_double(); [L294] CALL, EXPR isinf_double(x) [L248] __int32_t hx, lx; [L250] ieee_double_shape_type ew_u; [L251] ew_u.value = (x) [L252] EXPR ew_u.parts.msw [L252] (hx) = ew_u.parts.msw [L253] EXPR ew_u.parts.lsw [L253] (lx) = ew_u.parts.lsw [L255] hx &= 0x7fffffff [L256] hx |= (__uint32_t)(lx | (-lx)) >> 31 [L257] hx = 0x7ff00000 - hx [L258] return 1 - (int)((__uint32_t)(hx | (-hx)) >> 31); [L294] RET, EXPR isinf_double(x) [L294] EXPR isinf_double(x) && isfinite_double(y) [L294] CALL, EXPR isfinite_double(y) [L262] __int32_t hx; [L264] ieee_double_shape_type gh_u; [L265] gh_u.value = (x) [L266] EXPR gh_u.parts.msw [L266] (hx) = gh_u.parts.msw [L268] return (int)((__uint32_t)((hx & 0x7fffffff) - 0x7ff00000) >> 31); [L294] RET, EXPR isfinite_double(y) [L294] EXPR isinf_double(x) && isfinite_double(y) [L294] COND TRUE isinf_double(x) && isfinite_double(y) && y > 0.0 [L296] CALL, EXPR __ieee754_atan2(y, x) [L145] double z; [L146] __int32_t k, m, hx, hy, ix, iy; [L147] __uint32_t lx, ly; [L150] ieee_double_shape_type ew_u; [L151] ew_u.value = (x) [L152] EXPR ew_u.parts.msw [L152] (hx) = ew_u.parts.msw [L153] EXPR ew_u.parts.lsw [L153] (lx) = ew_u.parts.lsw [L155] ix = hx & 0x7fffffff [L157] ieee_double_shape_type ew_u; [L158] ew_u.value = (y) [L159] EXPR ew_u.parts.msw [L159] (hy) = ew_u.parts.msw [L160] EXPR ew_u.parts.lsw [L160] (ly) = ew_u.parts.lsw [L162] iy = hy & 0x7fffffff [L163-L164] COND TRUE ((ix | ((lx | -lx) >> 31)) > 0x7ff00000) || ((iy | ((ly | -ly) >> 31)) > 0x7ff00000) [L165] return x + y; [L296] RET, EXPR __ieee754_atan2(y, x) [L296] double res = __ieee754_atan2(y, x); [L299] EXPR res == 0.0 && __signbit_double(res) == 0 [L299] COND TRUE !(res == 0.0 && __signbit_double(res) == 0) [L300] reach_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 10 procedures, 132 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 2.0s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 310 SdHoareTripleChecker+Valid, 0.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 296 mSDsluCounter, 308 SdHoareTripleChecker+Invalid, 0.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 4 mSDsCounter, 52 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 498 IncrementalHoareTripleChecker+Invalid, 550 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 52 mSolverCounterUnsat, 304 mSDtfsCounter, 498 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 24 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=129occurred in iteration=0, InterpolantAutomatonStates: 11, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: No data available, 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 [2022-01-31 22:59:01,185 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...