/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_1131a.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-b8ad66e [2020-10-24 00:32:47,464 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-24 00:32:47,467 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-24 00:32:47,520 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-24 00:32:47,520 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-24 00:32:47,524 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-24 00:32:47,528 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-24 00:32:47,535 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-24 00:32:47,538 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-24 00:32:47,545 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-24 00:32:47,547 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-24 00:32:47,548 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-24 00:32:47,548 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-24 00:32:47,552 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-24 00:32:47,554 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-24 00:32:47,555 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-24 00:32:47,556 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-24 00:32:47,559 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-24 00:32:47,566 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-24 00:32:47,573 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-24 00:32:47,575 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-24 00:32:47,577 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-24 00:32:47,578 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-24 00:32:47,580 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-24 00:32:47,606 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-10-24 00:32:47,616 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-24 00:32:47,617 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-24 00:32:47,618 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-24 00:32:47,621 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 00:32:47,643 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-24 00:32:47,644 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-24 00:32:47,649 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-24 00:32:47,650 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-24 00:32:47,650 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-24 00:32:47,650 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-24 00:32:47,650 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-24 00:32:47,650 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-24 00:32:47,651 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-24 00:32:47,651 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-24 00:32:47,652 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-24 00:32:47,652 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-24 00:32:47,652 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-24 00:32:47,653 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-24 00:32:47,653 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-24 00:32:47,653 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-10-24 00:32:47,654 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-24 00:32:47,654 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-24 00:32:47,654 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-24 00:32:47,654 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-24 00:32:47,654 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-10-24 00:32:47,655 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-24 00:32:47,655 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use separate solver for trace checks -> true [2020-10-24 00:32:48,020 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-24 00:32:48,064 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-24 00:32:48,067 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-24 00:32:48,068 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-24 00:32:48,069 INFO L275 PluginConnector]: CDTParser initialized [2020-10-24 00:32:48,069 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/double_req_bl_1131a.c [2020-10-24 00:32:48,137 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d08471d89/163822f56a9e4c0590fc1162af6cf085/FLAGf1e778df1 [2020-10-24 00:32:48,814 INFO L306 CDTParser]: Found 1 translation units. [2020-10-24 00:32:48,815 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/double_req_bl_1131a.c [2020-10-24 00:32:48,829 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d08471d89/163822f56a9e4c0590fc1162af6cf085/FLAGf1e778df1 [2020-10-24 00:32:49,114 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d08471d89/163822f56a9e4c0590fc1162af6cf085 [2020-10-24 00:32:49,119 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-24 00:32:49,126 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-24 00:32:49,128 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-24 00:32:49,128 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-24 00:32:49,132 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-24 00:32:49,133 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 12:32:49" (1/1) ... [2020-10-24 00:32:49,136 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@39e8a3f5 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 00:32:49,136 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 12:32:49" (1/1) ... [2020-10-24 00:32:49,145 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-24 00:32:49,168 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-24 00:32:49,382 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-24 00:32:49,390 INFO L203 MainTranslator]: Completed pre-run [2020-10-24 00:32:49,459 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-24 00:32:49,478 INFO L208 MainTranslator]: Completed translation [2020-10-24 00:32:49,478 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:32:49 WrapperNode [2020-10-24 00:32:49,478 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-24 00:32:49,483 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-24 00:32:49,483 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-24 00:32:49,483 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-24 00:32:49,502 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 00:32:49,503 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 00:32:49,515 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 00:32:49,516 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 00:32:49,534 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 00:32:49,544 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 00:32:49,552 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 00:32:49,557 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-24 00:32:49,565 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-24 00:32:49,565 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-24 00:32:49,565 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-24 00:32:49,566 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 00:32:49,641 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-24 00:32:49,641 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-24 00:32:49,641 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-24 00:32:49,641 INFO L138 BoogieDeclarations]: Found implementation of procedure isnan_double [2020-10-24 00:32:49,642 INFO L138 BoogieDeclarations]: Found implementation of procedure fmod_double [2020-10-24 00:32:49,642 INFO L138 BoogieDeclarations]: Found implementation of procedure isfinite_double [2020-10-24 00:32:49,642 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-24 00:32:49,642 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-24 00:32:49,642 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-24 00:32:49,642 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-24 00:32:49,643 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-24 00:32:49,643 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_double [2020-10-24 00:32:49,643 INFO L130 BoogieDeclarations]: Found specification of procedure isnan_double [2020-10-24 00:32:49,643 INFO L130 BoogieDeclarations]: Found specification of procedure fmod_double [2020-10-24 00:32:49,643 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2020-10-24 00:32:49,643 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-24 00:32:49,643 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-24 00:32:49,644 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2020-10-24 00:32:49,644 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-24 00:32:49,644 INFO L130 BoogieDeclarations]: Found specification of procedure isfinite_double [2020-10-24 00:32:49,644 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-24 00:32:49,644 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-24 00:32:49,645 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-24 00:32:49,645 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2020-10-24 00:32:49,645 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-24 00:32:50,361 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-24 00:32:50,361 INFO L298 CfgBuilder]: Removed 16 assume(true) statements. [2020-10-24 00:32:50,363 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 12:32:50 BoogieIcfgContainer [2020-10-24 00:32:50,363 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-24 00:32:50,370 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-24 00:32:50,370 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-24 00:32:50,374 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-24 00:32:50,375 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 12:32:49" (1/3) ... [2020-10-24 00:32:50,377 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@384eae5e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 12:32:50, skipping insertion in model container [2020-10-24 00:32:50,377 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 00:32:50,378 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@384eae5e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 12:32:50, skipping insertion in model container [2020-10-24 00:32:50,378 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 12:32:50" (3/3) ... [2020-10-24 00:32:50,379 INFO L111 eAbstractionObserver]: Analyzing ICFG double_req_bl_1131a.c [2020-10-24 00:32:50,392 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-24 00:32:50,397 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-24 00:32:50,409 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-24 00:32:50,431 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-24 00:32:50,431 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-24 00:32:50,431 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-24 00:32:50,431 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-24 00:32:50,431 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-24 00:32:50,431 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-24 00:32:50,432 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-24 00:32:50,432 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-24 00:32:50,454 INFO L276 IsEmpty]: Start isEmpty. Operand 224 states. [2020-10-24 00:32:50,466 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2020-10-24 00:32:50,466 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 00:32:50,467 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 00:32:50,467 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-24 00:32:50,473 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 00:32:50,473 INFO L82 PathProgramCache]: Analyzing trace with hash 738853164, now seen corresponding path program 1 times [2020-10-24 00:32:50,483 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-24 00:32:50,483 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1754760451] [2020-10-24 00:32:50,484 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-24 00:32:50,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 00:32:50,727 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-24 00:32:50,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 00:32:50,788 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-10-24 00:32:50,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 00:32:50,804 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-10-24 00:32:50,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 00:32:50,846 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 00:32:50,847 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1754760451] [2020-10-24 00:32:50,849 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-24 00:32:50,850 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-24 00:32:50,851 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [22924051] [2020-10-24 00:32:50,857 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-24 00:32:50,857 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-24 00:32:50,875 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-24 00:32:50,876 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-24 00:32:50,878 INFO L87 Difference]: Start difference. First operand 224 states. Second operand 4 states. [2020-10-24 00:32:51,512 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-24 00:32:51,513 INFO L93 Difference]: Finished difference Result 423 states and 513 transitions. [2020-10-24 00:32:51,513 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-24 00:32:51,515 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 57 [2020-10-24 00:32:51,515 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-24 00:32:51,527 INFO L225 Difference]: With dead ends: 423 [2020-10-24 00:32:51,527 INFO L226 Difference]: Without dead ends: 215 [2020-10-24 00:32:51,533 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 00:32:51,552 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 215 states. [2020-10-24 00:32:51,606 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 215 to 215. [2020-10-24 00:32:51,608 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 215 states. [2020-10-24 00:32:51,611 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 215 states to 215 states and 241 transitions. [2020-10-24 00:32:51,613 INFO L78 Accepts]: Start accepts. Automaton has 215 states and 241 transitions. Word has length 57 [2020-10-24 00:32:51,614 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-24 00:32:51,614 INFO L481 AbstractCegarLoop]: Abstraction has 215 states and 241 transitions. [2020-10-24 00:32:51,614 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-24 00:32:51,615 INFO L276 IsEmpty]: Start isEmpty. Operand 215 states and 241 transitions. [2020-10-24 00:32:51,620 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2020-10-24 00:32:51,620 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 00:32:51,621 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 00:32:51,621 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-24 00:32:51,621 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-24 00:32:51,625 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 00:32:51,625 INFO L82 PathProgramCache]: Analyzing trace with hash -1422621394, now seen corresponding path program 1 times [2020-10-24 00:32:51,625 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-24 00:32:51,626 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [13489807] [2020-10-24 00:32:51,626 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-24 00:32:51,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-24 00:32:51,776 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-24 00:32:51,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-24 00:32:51,896 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-24 00:32:51,944 INFO L173 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-10-24 00:32:51,944 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-24 00:32:51,945 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-24 00:32:52,019 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.10 12:32:52 BoogieIcfgContainer [2020-10-24 00:32:52,019 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-24 00:32:52,022 INFO L168 Benchmark]: Toolchain (without parser) took 2899.79 ms. Allocated memory was 151.0 MB in the beginning and 191.9 MB in the end (delta: 40.9 MB). Free memory was 126.5 MB in the beginning and 153.1 MB in the end (delta: -26.6 MB). Peak memory consumption was 14.5 MB. Max. memory is 8.0 GB. [2020-10-24 00:32:52,023 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 151.0 MB. Free memory is still 126.4 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-10-24 00:32:52,024 INFO L168 Benchmark]: CACSL2BoogieTranslator took 351.15 ms. Allocated memory is still 151.0 MB. Free memory was 125.9 MB in the beginning and 112.7 MB in the end (delta: 13.2 MB). Peak memory consumption was 13.6 MB. Max. memory is 8.0 GB. [2020-10-24 00:32:52,025 INFO L168 Benchmark]: Boogie Preprocessor took 74.41 ms. Allocated memory is still 151.0 MB. Free memory was 112.7 MB in the beginning and 110.2 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2020-10-24 00:32:52,026 INFO L168 Benchmark]: RCFGBuilder took 798.83 ms. Allocated memory is still 151.0 MB. Free memory was 110.2 MB in the beginning and 98.6 MB in the end (delta: 11.6 MB). Peak memory consumption was 17.1 MB. Max. memory is 8.0 GB. [2020-10-24 00:32:52,027 INFO L168 Benchmark]: TraceAbstraction took 1649.62 ms. Allocated memory was 151.0 MB in the beginning and 191.9 MB in the end (delta: 40.9 MB). Free memory was 98.1 MB in the beginning and 153.1 MB in the end (delta: -55.0 MB). There was no memory consumed. Max. memory is 8.0 GB. [2020-10-24 00:32:52,031 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 151.0 MB. Free memory is still 126.4 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 351.15 ms. Allocated memory is still 151.0 MB. Free memory was 125.9 MB in the beginning and 112.7 MB in the end (delta: 13.2 MB). Peak memory consumption was 13.6 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 74.41 ms. Allocated memory is still 151.0 MB. Free memory was 112.7 MB in the beginning and 110.2 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 798.83 ms. Allocated memory is still 151.0 MB. Free memory was 110.2 MB in the beginning and 98.6 MB in the end (delta: 11.6 MB). Peak memory consumption was 17.1 MB. Max. memory is 8.0 GB. * TraceAbstraction took 1649.62 ms. Allocated memory was 151.0 MB in the beginning and 191.9 MB in the end (delta: 40.9 MB). Free memory was 98.1 MB in the beginning and 153.1 MB in the end (delta: -55.0 MB). There was no memory consumed. 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 46, overapproximation of someUnaryDOUBLEoperation at line 22, overapproximation of someBinaryArithmeticDOUBLEoperation at line 47, overapproximation of bitwiseAnd at line 43, overapproximation of someBinaryDOUBLEComparisonOperation at line 190, overapproximation of bitwiseXor at line 42. Possible FailurePath: [L20-L23] 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}] [L182] double y = 1.0 / 0.0; VAL [one_fmod=1, Zero_fmod={9:0}] [L183] double x = __VERIFIER_nondet_double(); VAL [__VERIFIER_nondet_double()=9223372032558759954, one_fmod=1, x=9223372032558759954, Zero_fmod={9:0}] [L185] CALL isfinite_double(x) VAL [\old(x)=9223372032558759954, one_fmod=1, Zero_fmod={9:0}] [L166] __int32_t hx; VAL [\old(x)=9223372032558759954, one_fmod=1, x=9223372032558759954, Zero_fmod={9:0}] [L168] ieee_double_shape_type gh_u; VAL [\old(x)=9223372032558759954, gh_u={10:0}, one_fmod=1, x=9223372032558759954, Zero_fmod={9:0}] [L169] gh_u.value = (x) VAL [\old(x)=9223372032558759954, gh_u={10:0}, one_fmod=1, x=9223372032558759954, Zero_fmod={9:0}] [L170] 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}] [L170] (hx) = gh_u.parts.msw VAL [(hx) = gh_u.parts.msw=9223372032558759951, \old(x)=9223372032558759954, gh_u={10:0}, gh_u.parts.msw=4294967294, hx=-2, one_fmod=1, x=9223372032558759954, Zero_fmod={9:0}] [L172] 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}] [L185] RET isfinite_double(x) VAL [isfinite_double(x)=11, one_fmod=1, x=9223372032558759954, Zero_fmod={9:0}] [L185] COND TRUE isfinite_double(x) VAL [isfinite_double(x)=11, one_fmod=1, x=9223372032558759954, Zero_fmod={9:0}] [L187] CALL, EXPR fmod_double(x, y) VAL [\old(x)=9223372032558759954, \old(y)=9223372032558759945, one_fmod=1, Zero_fmod={9:0}] [L26] __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}] [L27] __uint32_t lx, ly, lz; VAL [\old(x)=9223372032558759954, \old(y)=9223372032558759945, one_fmod=1, x=9223372032558759954, y=9223372032558759945, Zero_fmod={9:0}] [L30] 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}] [L31] 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}] [L32] 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}] [L32] (hx) = ew_u.parts.msw VAL [\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}] [L33] 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}] [L33] (lx) = ew_u.parts.lsw VAL [(lx) = ew_u.parts.lsw=9223372032558759956, \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}] [L36] 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}] [L37] 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}] [L38] 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}] [L38] (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}] [L39] 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}] [L39] (ly) = ew_u.parts.lsw VAL [(ly) = ew_u.parts.lsw=9223372032558759946, \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}] [L41] 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}] [L42] 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}] [L43] 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}] [L45-L46] 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}] [L47] 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}] [L187] RET, EXPR fmod_double(x, y) VAL [fmod_double(x, y)=9223372032558759959, one_fmod=1, x=9223372032558759954, y=9223372032558759945, Zero_fmod={9:0}] [L187] 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}] [L190] COND TRUE res != x VAL [one_fmod=1, res=9223372032558759959, x=9223372032558759954, y=9223372032558759945, Zero_fmod={9:0}] [L191] CALL reach_error() VAL [one_fmod=1, Zero_fmod={9:0}] [L3] __assert_fail("0", "double_req_bl_1131a.c", 3, "reach_error") VAL [one_fmod=1, Zero_fmod={9:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 7 procedures, 228 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 1.5s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.6s, 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, 0.3s 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, 0.1s 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...