/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.use.separate.solver.for.trace.checks true -s ../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf -i ../../../trunk/examples/svcomp/float-newlib/double_req_bl_1131b.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-b8ad66e [2020-10-24 00:32:47,734 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-24 00:32:47,739 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-24 00:32:47,791 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2020-10-24 00:32:47,802 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-24 00:32:47,803 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-24 00:32:47,805 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-24 00:32:47,806 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-24 00:32:47,807 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-24 00:32:47,808 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-24 00:32:47,810 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-24 00:32:47,812 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-24 00:32:47,814 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-24 00:32:47,815 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-24 00:32:47,817 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-24 00:32:47,818 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-24 00:32:47,821 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-10-24 00:32:47,831 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-24 00:32:47,832 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-24 00:32:47,832 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-24 00:32:47,833 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2020-10-24 00:32:47,847 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-24 00:32:47,847 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-24 00:32:47,849 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-24 00:32:47,849 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-24 00:32:47,849 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-24 00:32:47,849 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-24 00:32:47,849 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-24 00:32:47,850 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-24 00:32:47,850 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-24 00:32:47,850 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-24 00:32:47,850 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-24 00:32:47,850 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-24 00:32:47,851 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-24 00:32:47,851 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-24 00:32:47,851 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-24 00:32:47,851 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-10-24 00:32:47,851 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-24 00:32:47,852 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-24 00:32:47,852 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-24 00:32:47,852 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-24 00:32:47,852 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-10-24 00:32:47,852 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-24 00:32:47,853 INFO L138 SettingsManager]: * Use separate solver for trace checks=false WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use separate solver for trace checks -> true [2020-10-24 00:32:48,245 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-24 00:32:48,286 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-24 00:32:48,289 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-24 00:32:48,291 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-24 00:32:48,292 INFO L275 PluginConnector]: CDTParser initialized [2020-10-24 00:32:48,293 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/double_req_bl_1131b.c [2020-10-24 00:32:48,370 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7ec443e53/d0bc1b5bb69d404c862a64a189f098c7/FLAG493875dca [2020-10-24 00:32:48,940 INFO L306 CDTParser]: Found 1 translation units. [2020-10-24 00:32:48,941 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/double_req_bl_1131b.c [2020-10-24 00:32:48,950 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7ec443e53/d0bc1b5bb69d404c862a64a189f098c7/FLAG493875dca [2020-10-24 00:32:49,295 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7ec443e53/d0bc1b5bb69d404c862a64a189f098c7 [2020-10-24 00:32:49,299 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-24 00:32:49,308 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-24 00:32:49,312 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-24 00:32:49,312 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-24 00:32:49,317 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-24 00:32:49,318 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 12:32:49" (1/1) ... [2020-10-24 00:32:49,328 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@c6fb34a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:32:49, skipping insertion in model container [2020-10-24 00:32:49,328 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 12:32:49" (1/1) ... [2020-10-24 00:32:49,337 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-24 00:32:49,386 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-24 00:32:49,642 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-24 00:32:49,652 INFO L203 MainTranslator]: Completed pre-run [2020-10-24 00:32:49,772 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-24 00:32:49,806 INFO L208 MainTranslator]: Completed translation [2020-10-24 00:32:49,806 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:32:49 WrapperNode [2020-10-24 00:32:49,806 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-24 00:32:49,809 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-24 00:32:49,809 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-24 00:32:49,809 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-24 00:32:49,825 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:32:49" (1/1) ... [2020-10-24 00:32:49,825 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:32:49" (1/1) ... [2020-10-24 00:32:49,858 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:32:49" (1/1) ... [2020-10-24 00:32:49,858 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:32:49" (1/1) ... [2020-10-24 00:32:49,903 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:32:49" (1/1) ... [2020-10-24 00:32:49,922 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:32:49" (1/1) ... [2020-10-24 00:32:49,932 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:32:49" (1/1) ... [2020-10-24 00:32:49,942 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-24 00:32:49,943 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-24 00:32:49,946 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-24 00:32:49,946 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-24 00:32:49,947 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:32:49" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-24 00:32:50,058 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-24 00:32:50,058 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-24 00:32:50,059 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-24 00:32:50,059 INFO L138 BoogieDeclarations]: Found implementation of procedure fmod_double [2020-10-24 00:32:50,059 INFO L138 BoogieDeclarations]: Found implementation of procedure isfinite_double [2020-10-24 00:32:50,060 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-24 00:32:50,060 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-24 00:32:50,060 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-24 00:32:50,061 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-24 00:32:50,061 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-24 00:32:50,061 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_double [2020-10-24 00:32:50,061 INFO L130 BoogieDeclarations]: Found specification of procedure fmod_double [2020-10-24 00:32:50,061 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2020-10-24 00:32:50,062 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-24 00:32:50,062 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-24 00:32:50,062 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2020-10-24 00:32:50,063 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-24 00:32:50,063 INFO L130 BoogieDeclarations]: Found specification of procedure isfinite_double [2020-10-24 00:32:50,063 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-24 00:32:50,064 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-24 00:32:50,065 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-24 00:32:50,065 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2020-10-24 00:32:50,067 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-24 00:32:51,052 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-24 00:32:51,052 INFO L298 CfgBuilder]: Removed 16 assume(true) statements. [2020-10-24 00:32:51,054 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 12:32:51 BoogieIcfgContainer [2020-10-24 00:32:51,054 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-24 00:32:51,056 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-24 00:32:51,057 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-24 00:32:51,060 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-24 00:32:51,060 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 12:32:49" (1/3) ... [2020-10-24 00:32:51,061 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@8192a8f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 12:32:51, skipping insertion in model container [2020-10-24 00:32:51,061 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:32:49" (2/3) ... [2020-10-24 00:32:51,062 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@8192a8f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 12:32:51, skipping insertion in model container [2020-10-24 00:32:51,062 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 12:32:51" (3/3) ... [2020-10-24 00:32:51,064 INFO L111 eAbstractionObserver]: Analyzing ICFG double_req_bl_1131b.c [2020-10-24 00:32:51,075 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-24 00:32:51,082 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-24 00:32:51,096 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-24 00:32:51,139 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-24 00:32:51,139 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-24 00:32:51,139 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-24 00:32:51,139 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-24 00:32:51,139 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-24 00:32:51,140 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-24 00:32:51,140 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-24 00:32:51,140 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-24 00:32:51,177 INFO L276 IsEmpty]: Start isEmpty. Operand 224 states. [2020-10-24 00:32:51,195 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2020-10-24 00:32:51,195 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 00:32:51,197 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-24 00:32:51,197 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-24 00:32:51,207 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 00:32:51,207 INFO L82 PathProgramCache]: Analyzing trace with hash 502418348, now seen corresponding path program 1 times [2020-10-24 00:32:51,218 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-24 00:32:51,218 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1320415445] [2020-10-24 00:32:51,219 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-24 00:32:51,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 00:32:51,565 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-24 00:32:51,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 00:32:51,627 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-10-24 00:32:51,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 00:32:51,638 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-10-24 00:32:51,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 00:32:51,678 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-24 00:32:51,678 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1320415445] [2020-10-24 00:32:51,681 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-24 00:32:51,681 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-24 00:32:51,682 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1641602876] [2020-10-24 00:32:51,687 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-24 00:32:51,687 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-24 00:32:51,701 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-24 00:32:51,702 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-24 00:32:51,705 INFO L87 Difference]: Start difference. First operand 224 states. Second operand 4 states. [2020-10-24 00:32:52,620 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-24 00:32:52,621 INFO L93 Difference]: Finished difference Result 423 states and 513 transitions. [2020-10-24 00:32:52,621 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-24 00:32:52,623 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 57 [2020-10-24 00:32:52,624 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-24 00:32:52,636 INFO L225 Difference]: With dead ends: 423 [2020-10-24 00:32:52,636 INFO L226 Difference]: Without dead ends: 215 [2020-10-24 00:32:52,642 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-24 00:32:52,668 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 215 states. [2020-10-24 00:32:52,730 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 215 to 215. [2020-10-24 00:32:52,732 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 215 states. [2020-10-24 00:32:52,737 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 215 states to 215 states and 241 transitions. [2020-10-24 00:32:52,738 INFO L78 Accepts]: Start accepts. Automaton has 215 states and 241 transitions. Word has length 57 [2020-10-24 00:32:52,739 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-24 00:32:52,739 INFO L481 AbstractCegarLoop]: Abstraction has 215 states and 241 transitions. [2020-10-24 00:32:52,739 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-24 00:32:52,739 INFO L276 IsEmpty]: Start isEmpty. Operand 215 states and 241 transitions. [2020-10-24 00:32:52,743 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2020-10-24 00:32:52,743 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 00:32:52,744 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-24 00:32:52,744 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-24 00:32:52,744 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-24 00:32:52,745 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 00:32:52,745 INFO L82 PathProgramCache]: Analyzing trace with hash -201700463, now seen corresponding path program 1 times [2020-10-24 00:32:52,746 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-24 00:32:52,746 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [646101601] [2020-10-24 00:32:52,746 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-24 00:32:52,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-24 00:32:52,895 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-24 00:32:53,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-24 00:32:53,008 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-24 00:32:53,093 INFO L173 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-10-24 00:32:53,093 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-24 00:32:53,095 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-24 00:32:53,216 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.10 12:32:53 BoogieIcfgContainer [2020-10-24 00:32:53,216 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-24 00:32:53,220 INFO L168 Benchmark]: Toolchain (without parser) took 3916.06 ms. Allocated memory was 157.3 MB in the beginning and 188.7 MB in the end (delta: 31.5 MB). Free memory was 133.8 MB in the beginning and 148.7 MB in the end (delta: -14.9 MB). Peak memory consumption was 17.5 MB. Max. memory is 8.0 GB. [2020-10-24 00:32:53,221 INFO L168 Benchmark]: CDTParser took 0.89 ms. Allocated memory is still 125.8 MB. Free memory is still 106.1 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-10-24 00:32:53,222 INFO L168 Benchmark]: CACSL2BoogieTranslator took 495.51 ms. Allocated memory is still 157.3 MB. Free memory was 133.2 MB in the beginning and 120.1 MB in the end (delta: 13.1 MB). Peak memory consumption was 13.6 MB. Max. memory is 8.0 GB. [2020-10-24 00:32:53,223 INFO L168 Benchmark]: Boogie Preprocessor took 133.17 ms. Allocated memory is still 157.3 MB. Free memory was 120.1 MB in the beginning and 117.5 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2020-10-24 00:32:53,223 INFO L168 Benchmark]: RCFGBuilder took 1111.65 ms. Allocated memory is still 157.3 MB. Free memory was 117.4 MB in the beginning and 135.9 MB in the end (delta: -18.4 MB). Peak memory consumption was 17.8 MB. Max. memory is 8.0 GB. [2020-10-24 00:32:53,225 INFO L168 Benchmark]: TraceAbstraction took 2159.74 ms. Allocated memory was 157.3 MB in the beginning and 188.7 MB in the end (delta: 31.5 MB). Free memory was 135.3 MB in the beginning and 148.7 MB in the end (delta: -13.4 MB). Peak memory consumption was 18.6 MB. Max. memory is 8.0 GB. [2020-10-24 00:32:53,228 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.89 ms. Allocated memory is still 125.8 MB. Free memory is still 106.1 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 495.51 ms. Allocated memory is still 157.3 MB. Free memory was 133.2 MB in the beginning and 120.1 MB in the end (delta: 13.1 MB). Peak memory consumption was 13.6 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 133.17 ms. Allocated memory is still 157.3 MB. Free memory was 120.1 MB in the beginning and 117.5 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 1111.65 ms. Allocated memory is still 157.3 MB. Free memory was 117.4 MB in the beginning and 135.9 MB in the end (delta: -18.4 MB). Peak memory consumption was 17.8 MB. Max. memory is 8.0 GB. * TraceAbstraction took 2159.74 ms. Allocated memory was 157.3 MB in the beginning and 188.7 MB in the end (delta: 31.5 MB). Free memory was 135.3 MB in the beginning and 148.7 MB in the end (delta: -13.4 MB). Peak memory consumption was 18.6 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 3]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of bitwiseOr at line 43, overapproximation of someUnaryDOUBLEoperation at line 19, overapproximation of someBinaryArithmeticDOUBLEoperation at line 44, overapproximation of bitwiseAnd at line 40, overapproximation of someBinaryDOUBLEComparisonOperation at line 187, overapproximation of bitwiseXor at line 39. Possible FailurePath: [L17-L20] static const double one_fmod = 1.0, Zero_fmod[] = { 0.0, -0.0, }; VAL [\old(one_fmod)=9223372032558759962, \old(Zero_fmod)=9223372032558759960, \old(Zero_fmod)=9223372032558759953, one_fmod=1, Zero_fmod={9:0}] [L179] double y = -1.0 / 0.0; VAL [one_fmod=1, Zero_fmod={9:0}] [L180] double x = __VERIFIER_nondet_double(); VAL [__VERIFIER_nondet_double()=9223372032558759954, one_fmod=1, x=9223372032558759954, Zero_fmod={9:0}] [L182] CALL isfinite_double(x) VAL [\old(x)=9223372032558759954, one_fmod=1, Zero_fmod={9:0}] [L163] __int32_t hx; VAL [\old(x)=9223372032558759954, one_fmod=1, x=9223372032558759954, Zero_fmod={9:0}] [L165] ieee_double_shape_type gh_u; VAL [\old(x)=9223372032558759954, gh_u={10:0}, one_fmod=1, x=9223372032558759954, Zero_fmod={9:0}] [L166] gh_u.value = (x) VAL [\old(x)=9223372032558759954, gh_u={10:0}, one_fmod=1, x=9223372032558759954, Zero_fmod={9:0}] [L167] EXPR gh_u.parts.msw VAL [\old(x)=9223372032558759954, gh_u={10:0}, gh_u.parts.msw=4294967294, one_fmod=1, x=9223372032558759954, Zero_fmod={9:0}] [L167] (hx) = gh_u.parts.msw VAL [\old(x)=9223372032558759954, gh_u={10:0}, gh_u.parts.msw=4294967294, hx=-2, one_fmod=1, x=9223372032558759954, Zero_fmod={9:0}] [L169] return (int)((__uint32_t)((hx & 0x7fffffff) - 0x7ff00000) >> 31); VAL [\old(x)=9223372032558759954, \result=11, hx=-2, one_fmod=1, x=9223372032558759954, Zero_fmod={9:0}] [L182] RET isfinite_double(x) VAL [isfinite_double(x)=11, one_fmod=1, x=9223372032558759954, Zero_fmod={9:0}] [L182] COND TRUE isfinite_double(x) VAL [isfinite_double(x)=11, one_fmod=1, x=9223372032558759954, Zero_fmod={9:0}] [L184] CALL, EXPR fmod_double(x, y) VAL [\old(x)=9223372032558759954, \old(y)=9223372032558759945, one_fmod=1, Zero_fmod={9:0}] [L23] __int32_t n, hx, hy, hz, ix, iy, sx, i; VAL [\old(x)=9223372032558759954, \old(y)=9223372032558759945, one_fmod=1, x=9223372032558759954, y=9223372032558759945, Zero_fmod={9:0}] [L24] __uint32_t lx, ly, lz; VAL [\old(x)=9223372032558759954, \old(y)=9223372032558759945, one_fmod=1, x=9223372032558759954, y=9223372032558759945, Zero_fmod={9:0}] [L27] ieee_double_shape_type ew_u; VAL [\old(x)=9223372032558759954, \old(y)=9223372032558759945, ew_u={13:0}, one_fmod=1, x=9223372032558759954, y=9223372032558759945, Zero_fmod={9:0}] [L28] ew_u.value = (x) VAL [\old(x)=9223372032558759954, \old(y)=9223372032558759945, ew_u={13:0}, one_fmod=1, x=9223372032558759954, y=9223372032558759945, Zero_fmod={9:0}] [L29] EXPR ew_u.parts.msw VAL [\old(x)=9223372032558759954, \old(y)=9223372032558759945, ew_u={13:0}, ew_u.parts.msw=0, one_fmod=1, x=9223372032558759954, y=9223372032558759945, Zero_fmod={9:0}] [L29] (hx) = ew_u.parts.msw VAL [(hx) = ew_u.parts.msw=9223372032558759937, \old(x)=9223372032558759954, \old(y)=9223372032558759945, ew_u={13:0}, ew_u.parts.msw=0, hx=0, one_fmod=1, x=9223372032558759954, y=9223372032558759945, Zero_fmod={9:0}] [L30] EXPR ew_u.parts.lsw VAL [\old(x)=9223372032558759954, \old(y)=9223372032558759945, ew_u={13:0}, ew_u.parts.lsw=9223372032558759944, hx=0, one_fmod=1, x=9223372032558759954, y=9223372032558759945, Zero_fmod={9:0}] [L30] (lx) = ew_u.parts.lsw VAL [\old(x)=9223372032558759954, \old(y)=9223372032558759945, ew_u={13:0}, ew_u.parts.lsw=9223372032558759944, hx=0, lx=9223372032558759944, one_fmod=1, x=9223372032558759954, y=9223372032558759945, Zero_fmod={9:0}] [L33] ieee_double_shape_type ew_u; VAL [\old(x)=9223372032558759954, \old(y)=9223372032558759945, ew_u={3:0}, hx=0, lx=9223372032558759944, one_fmod=1, x=9223372032558759954, y=9223372032558759945, Zero_fmod={9:0}] [L34] ew_u.value = (y) VAL [\old(x)=9223372032558759954, \old(y)=9223372032558759945, ew_u={3:0}, hx=0, lx=9223372032558759944, one_fmod=1, x=9223372032558759954, y=9223372032558759945, Zero_fmod={9:0}] [L35] EXPR ew_u.parts.msw VAL [\old(x)=9223372032558759954, \old(y)=9223372032558759945, ew_u={3:0}, ew_u.parts.msw=0, hx=0, lx=9223372032558759944, one_fmod=1, x=9223372032558759954, y=9223372032558759945, Zero_fmod={9:0}] [L35] (hy) = ew_u.parts.msw VAL [\old(x)=9223372032558759954, \old(y)=9223372032558759945, ew_u={3:0}, ew_u.parts.msw=0, hx=0, hy=0, lx=9223372032558759944, one_fmod=1, x=9223372032558759954, y=9223372032558759945, Zero_fmod={9:0}] [L36] EXPR ew_u.parts.lsw VAL [\old(x)=9223372032558759954, \old(y)=9223372032558759945, ew_u={3:0}, ew_u.parts.lsw=9223372032558759952, hx=0, hy=0, lx=9223372032558759944, one_fmod=1, x=9223372032558759954, y=9223372032558759945, Zero_fmod={9:0}] [L36] (ly) = ew_u.parts.lsw VAL [\old(x)=9223372032558759954, \old(y)=9223372032558759945, ew_u={3:0}, ew_u.parts.lsw=9223372032558759952, hx=0, hy=0, lx=9223372032558759944, ly=9223372032558759952, one_fmod=1, x=9223372032558759954, y=9223372032558759945, Zero_fmod={9:0}] [L38] sx = hx & 0x80000000 VAL [\old(x)=9223372032558759954, \old(y)=9223372032558759945, hx=0, hy=0, lx=9223372032558759944, ly=9223372032558759952, one_fmod=1, sx=-1, x=9223372032558759954, y=9223372032558759945, Zero_fmod={9:0}] [L39] hx ^= sx VAL [\old(x)=9223372032558759954, \old(y)=9223372032558759945, hy=0, lx=9223372032558759944, ly=9223372032558759952, one_fmod=1, sx=-1, x=9223372032558759954, y=9223372032558759945, Zero_fmod={9:0}] [L40] hy &= 0x7fffffff VAL [\old(x)=9223372032558759954, \old(y)=9223372032558759945, lx=9223372032558759944, ly=9223372032558759952, one_fmod=1, sx=-1, x=9223372032558759954, y=9223372032558759945, Zero_fmod={9:0}] [L42-L43] COND TRUE (hy | ly) == 0 || (hx >= 0x7ff00000) || ((hy | ((ly | -ly) >> 31)) > 0x7ff00000) VAL [\old(x)=9223372032558759954, \old(y)=9223372032558759945, hx=2146435072, lx=9223372032558759944, ly=9223372032558759952, one_fmod=1, sx=-1, x=9223372032558759954, y=9223372032558759945, Zero_fmod={9:0}] [L44] return (x * y) / (x * y); VAL [\old(x)=9223372032558759954, \old(y)=9223372032558759945, hx=2146435072, lx=9223372032558759944, ly=9223372032558759952, one_fmod=1, sx=-1, x=9223372032558759954, y=9223372032558759945, Zero_fmod={9:0}] [L184] RET, EXPR fmod_double(x, y) VAL [fmod_double(x, y)=9223372032558759959, one_fmod=1, x=9223372032558759954, y=9223372032558759945, Zero_fmod={9:0}] [L184] double res = fmod_double(x, y); VAL [fmod_double(x, y)=9223372032558759959, one_fmod=1, res=9223372032558759959, x=9223372032558759954, y=9223372032558759945, Zero_fmod={9:0}] [L187] COND TRUE res != x VAL [one_fmod=1, res=9223372032558759959, x=9223372032558759954, y=9223372032558759945, Zero_fmod={9:0}] [L188] CALL reach_error() VAL [one_fmod=1, Zero_fmod={9:0}] [L3] __assert_fail("0", "double_req_bl_1131b.c", 3, "reach_error") VAL [one_fmod=1, Zero_fmod={9:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 6 procedures, 224 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 1.9s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 245 SDtfs, 39 SDslu, 181 SDs, 0 SdLazy, 269 SolverSat, 8 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 12 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=224occurred 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, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 151 NumberOfCodeBlocks, 151 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 56 ConstructedInterpolants, 0 QuantifiedInterpolants, 6664 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 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...