/usr/bin/java -ea -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf -i ../../../trunk/examples/svcomp/float-newlib/float_req_bl_1072a.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-8fc6572 [2020-07-10 18:35:31,869 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-10 18:35:31,872 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-10 18:35:31,885 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-10 18:35:31,885 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-10 18:35:31,886 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-10 18:35:31,888 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-10 18:35:31,890 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-10 18:35:31,892 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-10 18:35:31,893 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-10 18:35:31,894 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-10 18:35:31,896 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-10 18:35:31,896 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-10 18:35:31,897 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-10 18:35:31,898 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-10 18:35:31,899 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-10 18:35:31,900 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-10 18:35:31,901 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-10 18:35:31,903 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-10 18:35:31,906 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-10 18:35:31,907 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-10 18:35:31,908 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-10 18:35:31,910 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-10 18:35:31,910 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-10 18:35:31,913 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-07-10 18:35:31,921 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-10 18:35:31,922 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-10 18:35:31,923 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-10 18:35:31,924 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2020-07-10 18:35:31,933 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-10 18:35:31,933 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-10 18:35:31,935 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-10 18:35:31,935 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-10 18:35:31,935 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-10 18:35:31,935 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-10 18:35:31,936 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-10 18:35:31,936 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-10 18:35:31,936 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-10 18:35:31,936 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-10 18:35:31,936 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-10 18:35:31,937 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-10 18:35:31,937 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-10 18:35:31,937 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-10 18:35:31,937 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-10 18:35:31,937 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-07-10 18:35:31,938 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-10 18:35:31,938 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-10 18:35:31,938 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-10 18:35:31,938 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-10 18:35:31,938 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-07-10 18:35:31,939 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-10 18:35:31,939 INFO L138 SettingsManager]: * Use separate solver for trace checks=false [2020-07-10 18:35:32,223 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-10 18:35:32,237 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-10 18:35:32,240 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-10 18:35:32,242 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-10 18:35:32,242 INFO L275 PluginConnector]: CDTParser initialized [2020-07-10 18:35:32,243 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/float_req_bl_1072a.c [2020-07-10 18:35:32,326 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9ccb71e74/ef8c52d5b60548e2800a62bd2f92b513/FLAGdb3f59821 [2020-07-10 18:35:32,865 INFO L306 CDTParser]: Found 1 translation units. [2020-07-10 18:35:32,866 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/float_req_bl_1072a.c [2020-07-10 18:35:32,874 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9ccb71e74/ef8c52d5b60548e2800a62bd2f92b513/FLAGdb3f59821 [2020-07-10 18:35:33,206 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9ccb71e74/ef8c52d5b60548e2800a62bd2f92b513 [2020-07-10 18:35:33,216 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-10 18:35:33,218 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-10 18:35:33,221 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-10 18:35:33,221 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-10 18:35:33,225 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-10 18:35:33,227 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.07 06:35:33" (1/1) ... [2020-07-10 18:35:33,230 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@78ff9ca4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 06:35:33, skipping insertion in model container [2020-07-10 18:35:33,230 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.07 06:35:33" (1/1) ... [2020-07-10 18:35:33,237 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-10 18:35:33,259 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-10 18:35:33,459 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-10 18:35:33,463 INFO L203 MainTranslator]: Completed pre-run [2020-07-10 18:35:33,493 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-10 18:35:33,614 INFO L208 MainTranslator]: Completed translation [2020-07-10 18:35:33,614 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 06:35:33 WrapperNode [2020-07-10 18:35:33,615 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-10 18:35:33,615 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-10 18:35:33,615 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-10 18:35:33,616 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-10 18:35:33,629 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 06:35:33" (1/1) ... [2020-07-10 18:35:33,630 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 06:35:33" (1/1) ... [2020-07-10 18:35:33,640 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 06:35:33" (1/1) ... [2020-07-10 18:35:33,640 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 06:35:33" (1/1) ... [2020-07-10 18:35:33,665 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 06:35:33" (1/1) ... [2020-07-10 18:35:33,672 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 06:35:33" (1/1) ... [2020-07-10 18:35:33,674 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 06:35:33" (1/1) ... [2020-07-10 18:35:33,677 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-10 18:35:33,677 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-10 18:35:33,677 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-10 18:35:33,678 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-10 18:35:33,679 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 06:35:33" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-10 18:35:33,750 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-10 18:35:33,751 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-10 18:35:33,751 INFO L138 BoogieDeclarations]: Found implementation of procedure trunc_float [2020-07-10 18:35:33,751 INFO L138 BoogieDeclarations]: Found implementation of procedure isinf_float [2020-07-10 18:35:33,751 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-10 18:35:33,751 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-10 18:35:33,752 INFO L130 BoogieDeclarations]: Found specification of procedure trunc_float [2020-07-10 18:35:33,752 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-07-10 18:35:33,752 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2020-07-10 18:35:33,752 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-07-10 18:35:33,752 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-07-10 18:35:33,752 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-07-10 18:35:33,753 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2020-07-10 18:35:33,753 INFO L130 BoogieDeclarations]: Found specification of procedure isinf_float [2020-07-10 18:35:33,753 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-10 18:35:33,753 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-10 18:35:33,753 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-10 18:35:34,303 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-10 18:35:34,304 INFO L295 CfgBuilder]: Removed 8 assume(true) statements. [2020-07-10 18:35:34,312 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.07 06:35:34 BoogieIcfgContainer [2020-07-10 18:35:34,313 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-10 18:35:34,317 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-10 18:35:34,320 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-10 18:35:34,324 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-10 18:35:34,325 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.07 06:35:33" (1/3) ... [2020-07-10 18:35:34,326 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@123275c4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.07 06:35:34, skipping insertion in model container [2020-07-10 18:35:34,326 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 06:35:33" (2/3) ... [2020-07-10 18:35:34,326 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@123275c4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.07 06:35:34, skipping insertion in model container [2020-07-10 18:35:34,326 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.07 06:35:34" (3/3) ... [2020-07-10 18:35:34,328 INFO L109 eAbstractionObserver]: Analyzing ICFG float_req_bl_1072a.c [2020-07-10 18:35:34,336 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-07-10 18:35:34,346 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-10 18:35:34,359 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-10 18:35:34,380 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-10 18:35:34,380 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-10 18:35:34,380 INFO L377 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2020-07-10 18:35:34,381 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-10 18:35:34,381 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-10 18:35:34,381 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-10 18:35:34,382 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-10 18:35:34,382 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-10 18:35:34,399 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states. [2020-07-10 18:35:34,412 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2020-07-10 18:35:34,412 INFO L414 BasicCegarLoop]: Found error trace [2020-07-10 18:35:34,413 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] [2020-07-10 18:35:34,414 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-10 18:35:34,420 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-10 18:35:34,421 INFO L82 PathProgramCache]: Analyzing trace with hash 1694901136, now seen corresponding path program 1 times [2020-07-10 18:35:34,430 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-10 18:35:34,430 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2076436403] [2020-07-10 18:35:34,431 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-10 18:35:34,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 18:35:34,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 18:35:34,652 INFO L280 TraceCheckUtils]: 0: Hoare triple {112#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|))} #NULL.base, #NULL.offset := 0, 0; {86#true} is VALID [2020-07-10 18:35:34,652 INFO L280 TraceCheckUtils]: 1: Hoare triple {86#true} #valid := #valid[0 := 0]; {86#true} is VALID [2020-07-10 18:35:34,653 INFO L280 TraceCheckUtils]: 2: Hoare triple {86#true} assume 0 < #StackHeapBarrier; {86#true} is VALID [2020-07-10 18:35:34,654 INFO L280 TraceCheckUtils]: 3: Hoare triple {86#true} assume true; {86#true} is VALID [2020-07-10 18:35:34,654 INFO L275 TraceCheckUtils]: 4: Hoare quadruple {86#true} {86#true} #134#return; {86#true} is VALID [2020-07-10 18:35:34,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 18:35:34,723 INFO L280 TraceCheckUtils]: 0: Hoare triple {113#(and (= |#memory_real| |old(#memory_real)|) (= |#valid| |old(#valid)|) (= |#memory_int| |old(#memory_int)|) (= |old(#length)| |#length|))} ~x := #in~x; {86#true} is VALID [2020-07-10 18:35:34,723 INFO L280 TraceCheckUtils]: 1: Hoare triple {86#true} havoc ~signbit~0; {86#true} is VALID [2020-07-10 18:35:34,724 INFO L280 TraceCheckUtils]: 2: Hoare triple {86#true} havoc ~w~0; {86#true} is VALID [2020-07-10 18:35:34,724 INFO L280 TraceCheckUtils]: 3: Hoare triple {86#true} havoc ~exponent_less_127~0; {86#true} is VALID [2020-07-10 18:35:34,727 INFO L280 TraceCheckUtils]: 4: Hoare triple {86#true} assume !true; {87#false} is VALID [2020-07-10 18:35:34,727 INFO L280 TraceCheckUtils]: 5: Hoare triple {87#false} ~signbit~0 := (if ~bitwiseAnd(~w~0, 2147483648) % 4294967296 % 4294967296 <= 2147483647 then ~bitwiseAnd(~w~0, 2147483648) % 4294967296 % 4294967296 else ~bitwiseAnd(~w~0, 2147483648) % 4294967296 % 4294967296 - 4294967296); {87#false} is VALID [2020-07-10 18:35:34,728 INFO L280 TraceCheckUtils]: 6: Hoare triple {87#false} ~exponent_less_127~0 := ~bitwiseAnd(~w~0, 2139095040) / 8388608 - 127; {87#false} is VALID [2020-07-10 18:35:34,729 INFO L280 TraceCheckUtils]: 7: Hoare triple {87#false} assume !(~exponent_less_127~0 < 23); {87#false} is VALID [2020-07-10 18:35:34,730 INFO L280 TraceCheckUtils]: 8: Hoare triple {87#false} assume !(255 == ~exponent_less_127~0); {87#false} is VALID [2020-07-10 18:35:34,730 INFO L280 TraceCheckUtils]: 9: Hoare triple {87#false} #res := ~x; {87#false} is VALID [2020-07-10 18:35:34,730 INFO L280 TraceCheckUtils]: 10: Hoare triple {87#false} assume true; {87#false} is VALID [2020-07-10 18:35:34,731 INFO L275 TraceCheckUtils]: 11: Hoare quadruple {87#false} {86#true} #138#return; {87#false} is VALID [2020-07-10 18:35:34,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 18:35:34,748 INFO L280 TraceCheckUtils]: 0: Hoare triple {113#(and (= |#memory_real| |old(#memory_real)|) (= |#valid| |old(#valid)|) (= |#memory_int| |old(#memory_int)|) (= |old(#length)| |#length|))} ~x := #in~x; {86#true} is VALID [2020-07-10 18:35:34,748 INFO L280 TraceCheckUtils]: 1: Hoare triple {86#true} havoc ~ix~0; {86#true} is VALID [2020-07-10 18:35:34,749 INFO L280 TraceCheckUtils]: 2: Hoare triple {86#true} assume !true; {87#false} is VALID [2020-07-10 18:35:34,750 INFO L280 TraceCheckUtils]: 3: Hoare triple {87#false} ~ix~0 := ~bitwiseAnd(~ix~0, 2147483647); {87#false} is VALID [2020-07-10 18:35:34,750 INFO L280 TraceCheckUtils]: 4: Hoare triple {87#false} #res := (if 2139095040 == ~ix~0 then 1 else 0); {87#false} is VALID [2020-07-10 18:35:34,750 INFO L280 TraceCheckUtils]: 5: Hoare triple {87#false} assume true; {87#false} is VALID [2020-07-10 18:35:34,751 INFO L275 TraceCheckUtils]: 6: Hoare quadruple {87#false} {87#false} #140#return; {87#false} is VALID [2020-07-10 18:35:34,753 INFO L263 TraceCheckUtils]: 0: Hoare triple {86#true} call ULTIMATE.init(); {112#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|))} is VALID [2020-07-10 18:35:34,754 INFO L280 TraceCheckUtils]: 1: Hoare triple {112#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|))} #NULL.base, #NULL.offset := 0, 0; {86#true} is VALID [2020-07-10 18:35:34,754 INFO L280 TraceCheckUtils]: 2: Hoare triple {86#true} #valid := #valid[0 := 0]; {86#true} is VALID [2020-07-10 18:35:34,754 INFO L280 TraceCheckUtils]: 3: Hoare triple {86#true} assume 0 < #StackHeapBarrier; {86#true} is VALID [2020-07-10 18:35:34,755 INFO L280 TraceCheckUtils]: 4: Hoare triple {86#true} assume true; {86#true} is VALID [2020-07-10 18:35:34,755 INFO L275 TraceCheckUtils]: 5: Hoare quadruple {86#true} {86#true} #134#return; {86#true} is VALID [2020-07-10 18:35:34,755 INFO L263 TraceCheckUtils]: 6: Hoare triple {86#true} call #t~ret10 := main(); {86#true} is VALID [2020-07-10 18:35:34,756 INFO L280 TraceCheckUtils]: 7: Hoare triple {86#true} ~x~0 := ~someBinaryArithmeticFLOAToperation(1.0, 0.0); {86#true} is VALID [2020-07-10 18:35:34,758 INFO L263 TraceCheckUtils]: 8: Hoare triple {86#true} call #t~ret8 := trunc_float(~x~0); {113#(and (= |#memory_real| |old(#memory_real)|) (= |#valid| |old(#valid)|) (= |#memory_int| |old(#memory_int)|) (= |old(#length)| |#length|))} is VALID [2020-07-10 18:35:34,759 INFO L280 TraceCheckUtils]: 9: Hoare triple {113#(and (= |#memory_real| |old(#memory_real)|) (= |#valid| |old(#valid)|) (= |#memory_int| |old(#memory_int)|) (= |old(#length)| |#length|))} ~x := #in~x; {86#true} is VALID [2020-07-10 18:35:34,759 INFO L280 TraceCheckUtils]: 10: Hoare triple {86#true} havoc ~signbit~0; {86#true} is VALID [2020-07-10 18:35:34,759 INFO L280 TraceCheckUtils]: 11: Hoare triple {86#true} havoc ~w~0; {86#true} is VALID [2020-07-10 18:35:34,760 INFO L280 TraceCheckUtils]: 12: Hoare triple {86#true} havoc ~exponent_less_127~0; {86#true} is VALID [2020-07-10 18:35:34,761 INFO L280 TraceCheckUtils]: 13: Hoare triple {86#true} assume !true; {87#false} is VALID [2020-07-10 18:35:34,761 INFO L280 TraceCheckUtils]: 14: Hoare triple {87#false} ~signbit~0 := (if ~bitwiseAnd(~w~0, 2147483648) % 4294967296 % 4294967296 <= 2147483647 then ~bitwiseAnd(~w~0, 2147483648) % 4294967296 % 4294967296 else ~bitwiseAnd(~w~0, 2147483648) % 4294967296 % 4294967296 - 4294967296); {87#false} is VALID [2020-07-10 18:35:34,762 INFO L280 TraceCheckUtils]: 15: Hoare triple {87#false} ~exponent_less_127~0 := ~bitwiseAnd(~w~0, 2139095040) / 8388608 - 127; {87#false} is VALID [2020-07-10 18:35:34,762 INFO L280 TraceCheckUtils]: 16: Hoare triple {87#false} assume !(~exponent_less_127~0 < 23); {87#false} is VALID [2020-07-10 18:35:34,762 INFO L280 TraceCheckUtils]: 17: Hoare triple {87#false} assume !(255 == ~exponent_less_127~0); {87#false} is VALID [2020-07-10 18:35:34,763 INFO L280 TraceCheckUtils]: 18: Hoare triple {87#false} #res := ~x; {87#false} is VALID [2020-07-10 18:35:34,763 INFO L280 TraceCheckUtils]: 19: Hoare triple {87#false} assume true; {87#false} is VALID [2020-07-10 18:35:34,763 INFO L275 TraceCheckUtils]: 20: Hoare quadruple {87#false} {86#true} #138#return; {87#false} is VALID [2020-07-10 18:35:34,764 INFO L280 TraceCheckUtils]: 21: Hoare triple {87#false} ~res~0 := #t~ret8; {87#false} is VALID [2020-07-10 18:35:34,764 INFO L280 TraceCheckUtils]: 22: Hoare triple {87#false} havoc #t~ret8; {87#false} is VALID [2020-07-10 18:35:34,764 INFO L263 TraceCheckUtils]: 23: Hoare triple {87#false} call #t~ret9 := isinf_float(~res~0); {113#(and (= |#memory_real| |old(#memory_real)|) (= |#valid| |old(#valid)|) (= |#memory_int| |old(#memory_int)|) (= |old(#length)| |#length|))} is VALID [2020-07-10 18:35:34,765 INFO L280 TraceCheckUtils]: 24: Hoare triple {113#(and (= |#memory_real| |old(#memory_real)|) (= |#valid| |old(#valid)|) (= |#memory_int| |old(#memory_int)|) (= |old(#length)| |#length|))} ~x := #in~x; {86#true} is VALID [2020-07-10 18:35:34,765 INFO L280 TraceCheckUtils]: 25: Hoare triple {86#true} havoc ~ix~0; {86#true} is VALID [2020-07-10 18:35:34,766 INFO L280 TraceCheckUtils]: 26: Hoare triple {86#true} assume !true; {87#false} is VALID [2020-07-10 18:35:34,767 INFO L280 TraceCheckUtils]: 27: Hoare triple {87#false} ~ix~0 := ~bitwiseAnd(~ix~0, 2147483647); {87#false} is VALID [2020-07-10 18:35:34,767 INFO L280 TraceCheckUtils]: 28: Hoare triple {87#false} #res := (if 2139095040 == ~ix~0 then 1 else 0); {87#false} is VALID [2020-07-10 18:35:34,768 INFO L280 TraceCheckUtils]: 29: Hoare triple {87#false} assume true; {87#false} is VALID [2020-07-10 18:35:34,768 INFO L275 TraceCheckUtils]: 30: Hoare quadruple {87#false} {87#false} #140#return; {87#false} is VALID [2020-07-10 18:35:34,768 INFO L280 TraceCheckUtils]: 31: Hoare triple {87#false} assume -2147483648 <= #t~ret9 && #t~ret9 <= 2147483647; {87#false} is VALID [2020-07-10 18:35:34,769 INFO L280 TraceCheckUtils]: 32: Hoare triple {87#false} assume 0 == #t~ret9; {87#false} is VALID [2020-07-10 18:35:34,769 INFO L280 TraceCheckUtils]: 33: Hoare triple {87#false} havoc #t~ret9; {87#false} is VALID [2020-07-10 18:35:34,769 INFO L280 TraceCheckUtils]: 34: Hoare triple {87#false} assume !false; {87#false} is VALID [2020-07-10 18:35:34,776 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-10 18:35:34,776 INFO L185 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-10 18:35:34,782 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2076436403] [2020-07-10 18:35:34,784 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-10 18:35:34,785 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-07-10 18:35:34,785 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [944431265] [2020-07-10 18:35:34,792 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 35 [2020-07-10 18:35:34,795 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-10 18:35:34,799 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 4 states. [2020-07-10 18:35:34,860 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 35 edges. 35 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-10 18:35:34,860 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-07-10 18:35:34,861 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-10 18:35:34,870 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-07-10 18:35:34,871 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-07-10 18:35:34,874 INFO L87 Difference]: Start difference. First operand 83 states. Second operand 4 states. [2020-07-10 18:35:35,602 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-10 18:35:35,604 INFO L93 Difference]: Finished difference Result 152 states and 175 transitions. [2020-07-10 18:35:35,604 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-07-10 18:35:35,605 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 35 [2020-07-10 18:35:35,605 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-10 18:35:35,606 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-07-10 18:35:35,635 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 175 transitions. [2020-07-10 18:35:35,636 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-07-10 18:35:35,642 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 175 transitions. [2020-07-10 18:35:35,643 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 4 states and 175 transitions. [2020-07-10 18:35:35,876 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 175 edges. 175 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-10 18:35:35,891 INFO L225 Difference]: With dead ends: 152 [2020-07-10 18:35:35,892 INFO L226 Difference]: Without dead ends: 76 [2020-07-10 18:35:35,897 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-07-10 18:35:35,916 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76 states. [2020-07-10 18:35:36,003 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76 to 76. [2020-07-10 18:35:36,003 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-10 18:35:36,004 INFO L82 GeneralOperation]: Start isEquivalent. First operand 76 states. Second operand 76 states. [2020-07-10 18:35:36,005 INFO L74 IsIncluded]: Start isIncluded. First operand 76 states. Second operand 76 states. [2020-07-10 18:35:36,005 INFO L87 Difference]: Start difference. First operand 76 states. Second operand 76 states. [2020-07-10 18:35:36,012 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-10 18:35:36,013 INFO L93 Difference]: Finished difference Result 76 states and 78 transitions. [2020-07-10 18:35:36,013 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 78 transitions. [2020-07-10 18:35:36,014 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-10 18:35:36,014 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-10 18:35:36,015 INFO L74 IsIncluded]: Start isIncluded. First operand 76 states. Second operand 76 states. [2020-07-10 18:35:36,015 INFO L87 Difference]: Start difference. First operand 76 states. Second operand 76 states. [2020-07-10 18:35:36,021 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-10 18:35:36,022 INFO L93 Difference]: Finished difference Result 76 states and 78 transitions. [2020-07-10 18:35:36,022 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 78 transitions. [2020-07-10 18:35:36,023 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-10 18:35:36,024 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-10 18:35:36,024 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-10 18:35:36,024 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-10 18:35:36,024 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 76 states. [2020-07-10 18:35:36,029 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 76 states and 78 transitions. [2020-07-10 18:35:36,031 INFO L78 Accepts]: Start accepts. Automaton has 76 states and 78 transitions. Word has length 35 [2020-07-10 18:35:36,031 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-10 18:35:36,031 INFO L479 AbstractCegarLoop]: Abstraction has 76 states and 78 transitions. [2020-07-10 18:35:36,032 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-07-10 18:35:36,032 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 76 states and 78 transitions. [2020-07-10 18:35:36,144 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 78 edges. 78 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-10 18:35:36,145 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 78 transitions. [2020-07-10 18:35:36,147 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2020-07-10 18:35:36,147 INFO L414 BasicCegarLoop]: Found error trace [2020-07-10 18:35:36,147 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-10 18:35:36,148 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-07-10 18:35:36,148 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-10 18:35:36,149 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-10 18:35:36,149 INFO L82 PathProgramCache]: Analyzing trace with hash -331067037, now seen corresponding path program 1 times [2020-07-10 18:35:36,149 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-10 18:35:36,150 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [405343289] [2020-07-10 18:35:36,150 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-10 18:35:36,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-10 18:35:36,384 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-07-10 18:35:36,385 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.AssertionError at de.uni_freiburg.informatik.ultimate.smtinterpol.theory.linar.TableauxRow.(TableauxRow.java:45) at de.uni_freiburg.informatik.ultimate.smtinterpol.theory.linar.LinArSolve.generateLinVar(LinArSolve.java:275) at de.uni_freiburg.informatik.ultimate.smtinterpol.theory.linar.LinArSolve.createEquality(LinArSolve.java:1974) at de.uni_freiburg.informatik.ultimate.smtinterpol.convert.EqualityProxy.createLAEquality(EqualityProxy.java:83) at de.uni_freiburg.informatik.ultimate.smtinterpol.convert.EqualityProxy.createAtom(EqualityProxy.java:165) at de.uni_freiburg.informatik.ultimate.smtinterpol.convert.EqualityProxy.getLiteral(EqualityProxy.java:186) at de.uni_freiburg.informatik.ultimate.smtinterpol.convert.EqualityProxy.createCCEquality(EqualityProxy.java:109) at de.uni_freiburg.informatik.ultimate.smtinterpol.theory.linar.LinArSolve.mbtc(LinArSolve.java:1891) at de.uni_freiburg.informatik.ultimate.smtinterpol.theory.linar.LinArSolve.computeConflictClause(LinArSolve.java:664) at de.uni_freiburg.informatik.ultimate.smtinterpol.dpll.DPLLEngine.checkConsistency(DPLLEngine.java:1012) at de.uni_freiburg.informatik.ultimate.smtinterpol.dpll.DPLLEngine.solve(DPLLEngine.java:1159) at de.uni_freiburg.informatik.ultimate.smtinterpol.smtlib2.SMTInterpol$CheckType$1.check(SMTInterpol.java:117) at de.uni_freiburg.informatik.ultimate.smtinterpol.smtlib2.SMTInterpol.checkSatAssuming(SMTInterpol.java:494) at de.uni_freiburg.informatik.ultimate.smtinterpol.smtlib2.SMTInterpol.checkSat(SMTInterpol.java:446) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.checkSat(WrapperScript.java:163) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.checkSat(WrapperScript.java:163) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.AnnotateAndAsserter.buildAnnotatedSsaAndAssertTerms(AnnotateAndAsserter.java:130) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheck.checkTrace(TraceCheck.java:300) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheck.(TraceCheck.java:214) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheck.computeRcfgProgramExecutionAndDecodeBranches(TraceCheck.java:342) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheck.(TraceCheck.java:228) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.InterpolatingTraceCheck.(InterpolatingTraceCheck.java:96) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.InterpolatingTraceCheckCraig.(InterpolatingTraceCheckCraig.java:100) at de.uni_freiburg.informatik.ultimate.lib.acceleratedinterpolation.Interpolator.generateInterpolantsCraigNested(Interpolator.java:146) at de.uni_freiburg.informatik.ultimate.lib.acceleratedinterpolation.Interpolator.generateInterpolants(Interpolator.java:102) at de.uni_freiburg.informatik.ultimate.lib.acceleratedinterpolation.AcceleratedInterpolation.acceleratedInterpolationCore(AcceleratedInterpolation.java:266) at de.uni_freiburg.informatik.ultimate.lib.acceleratedinterpolation.AcceleratedInterpolation.(AcceleratedInterpolation.java:184) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModulePreferences.construct(IpTcStrategyModulePreferences.java:144) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.isCorrect(IpTcStrategyModuleBase.java:57) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.checkFeasibility(AutomatonFreeRefinementEngine.java:242) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:166) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:75) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:508) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:436) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:370) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopResult.iterate(CegarLoopResult.java:142) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.iterateNew(TraceAbstractionStarter.java:334) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:175) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:127) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:120) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:317) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) [2020-07-10 18:35:36,393 INFO L168 Benchmark]: Toolchain (without parser) took 3175.28 ms. Allocated memory was 143.7 MB in the beginning and 250.1 MB in the end (delta: 106.4 MB). Free memory was 101.2 MB in the beginning and 214.9 MB in the end (delta: -113.6 MB). There was no memory consumed. Max. memory is 7.1 GB. [2020-07-10 18:35:36,394 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 143.7 MB. Free memory was 120.2 MB in the beginning and 120.0 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. [2020-07-10 18:35:36,395 INFO L168 Benchmark]: CACSL2BoogieTranslator took 393.79 ms. Allocated memory was 143.7 MB in the beginning and 200.3 MB in the end (delta: 56.6 MB). Free memory was 101.0 MB in the beginning and 179.2 MB in the end (delta: -78.2 MB). Peak memory consumption was 20.7 MB. Max. memory is 7.1 GB. [2020-07-10 18:35:36,398 INFO L168 Benchmark]: Boogie Preprocessor took 61.54 ms. Allocated memory is still 200.3 MB. Free memory was 179.2 MB in the beginning and 176.8 MB in the end (delta: 2.4 MB). Peak memory consumption was 2.4 MB. Max. memory is 7.1 GB. [2020-07-10 18:35:36,399 INFO L168 Benchmark]: RCFGBuilder took 635.80 ms. Allocated memory is still 200.3 MB. Free memory was 176.1 MB in the beginning and 140.1 MB in the end (delta: 36.0 MB). Peak memory consumption was 36.0 MB. Max. memory is 7.1 GB. [2020-07-10 18:35:36,399 INFO L168 Benchmark]: TraceAbstraction took 2070.77 ms. Allocated memory was 200.3 MB in the beginning and 250.1 MB in the end (delta: 49.8 MB). Free memory was 140.1 MB in the beginning and 214.9 MB in the end (delta: -74.8 MB). There was no memory consumed. Max. memory is 7.1 GB. [2020-07-10 18:35:36,406 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - AssertionsEnabledResult: Assertions are enabled Assertions are enabled - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 143.7 MB. Free memory was 120.2 MB in the beginning and 120.0 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 393.79 ms. Allocated memory was 143.7 MB in the beginning and 200.3 MB in the end (delta: 56.6 MB). Free memory was 101.0 MB in the beginning and 179.2 MB in the end (delta: -78.2 MB). Peak memory consumption was 20.7 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 61.54 ms. Allocated memory is still 200.3 MB. Free memory was 179.2 MB in the beginning and 176.8 MB in the end (delta: 2.4 MB). Peak memory consumption was 2.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 635.80 ms. Allocated memory is still 200.3 MB. Free memory was 176.1 MB in the beginning and 140.1 MB in the end (delta: 36.0 MB). Peak memory consumption was 36.0 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2070.77 ms. Allocated memory was 200.3 MB in the beginning and 250.1 MB in the end (delta: 49.8 MB). Free memory was 140.1 MB in the beginning and 214.9 MB in the end (delta: -74.8 MB). There was no memory consumed. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: AssertionError: null de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: AssertionError: null: de.uni_freiburg.informatik.ultimate.smtinterpol.theory.linar.TableauxRow.(TableauxRow.java:45) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...