/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 --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/reducercommutativity/rangesum05.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-267fbe0 [2020-07-18 06:32:11,153 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-18 06:32:11,156 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-18 06:32:11,177 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-18 06:32:11,177 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-18 06:32:11,180 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-18 06:32:11,182 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-18 06:32:11,194 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-18 06:32:11,197 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-18 06:32:11,201 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-18 06:32:11,203 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-18 06:32:11,206 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-18 06:32:11,206 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-18 06:32:11,208 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-18 06:32:11,211 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-18 06:32:11,213 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-18 06:32:11,215 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-18 06:32:11,216 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-18 06:32:11,217 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-18 06:32:11,223 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-18 06:32:11,229 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-18 06:32:11,233 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-18 06:32:11,234 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-18 06:32:11,235 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-18 06:32:11,238 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-07-18 06:32:11,244 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-18 06:32:11,245 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-18 06:32:11,247 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-18 06:32:11,248 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-18 06:32:11,250 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-18 06:32:11,250 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-18 06:32:11,251 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-18 06:32:11,251 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-18 06:32:11,251 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-18 06:32:11,252 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-18 06:32:11,254 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-18 06:32:11,255 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2020-07-18 06:32:11,281 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-18 06:32:11,284 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-18 06:32:11,287 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-18 06:32:11,288 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-18 06:32:11,288 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-18 06:32:11,288 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-18 06:32:11,288 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-18 06:32:11,288 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-18 06:32:11,289 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-18 06:32:11,289 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-18 06:32:11,289 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-18 06:32:11,292 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-18 06:32:11,293 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-18 06:32:11,293 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-18 06:32:11,294 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-18 06:32:11,295 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-07-18 06:32:11,295 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-18 06:32:11,295 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-18 06:32:11,295 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-18 06:32:11,295 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-18 06:32:11,296 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-07-18 06:32:11,296 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-18 06:32:11,296 INFO L138 SettingsManager]: * Use separate solver for trace checks=false 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 [2020-07-18 06:32:11,701 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-18 06:32:11,725 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-18 06:32:11,731 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-18 06:32:11,733 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-18 06:32:11,733 INFO L275 PluginConnector]: CDTParser initialized [2020-07-18 06:32:11,734 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/reducercommutativity/rangesum05.i [2020-07-18 06:32:11,811 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e0f116031/9088c8e84ad24d22ba98c984ed14a87a/FLAG0d3622bbe [2020-07-18 06:32:12,344 INFO L306 CDTParser]: Found 1 translation units. [2020-07-18 06:32:12,345 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/reducercommutativity/rangesum05.i [2020-07-18 06:32:12,354 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e0f116031/9088c8e84ad24d22ba98c984ed14a87a/FLAG0d3622bbe [2020-07-18 06:32:12,711 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e0f116031/9088c8e84ad24d22ba98c984ed14a87a [2020-07-18 06:32:12,722 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-18 06:32:12,725 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-18 06:32:12,726 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-18 06:32:12,727 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-18 06:32:12,731 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-18 06:32:12,733 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.07 06:32:12" (1/1) ... [2020-07-18 06:32:12,737 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2345d67c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.07 06:32:12, skipping insertion in model container [2020-07-18 06:32:12,737 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.07 06:32:12" (1/1) ... [2020-07-18 06:32:12,746 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-18 06:32:12,769 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-18 06:32:12,972 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-18 06:32:12,986 INFO L203 MainTranslator]: Completed pre-run [2020-07-18 06:32:13,019 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-18 06:32:13,129 INFO L208 MainTranslator]: Completed translation [2020-07-18 06:32:13,129 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.07 06:32:13 WrapperNode [2020-07-18 06:32:13,130 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-18 06:32:13,130 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-18 06:32:13,131 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-18 06:32:13,131 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-18 06:32:13,149 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.07 06:32:13" (1/1) ... [2020-07-18 06:32:13,149 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.07 06:32:13" (1/1) ... [2020-07-18 06:32:13,162 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.07 06:32:13" (1/1) ... [2020-07-18 06:32:13,163 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.07 06:32:13" (1/1) ... [2020-07-18 06:32:13,178 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.07 06:32:13" (1/1) ... [2020-07-18 06:32:13,185 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.07 06:32:13" (1/1) ... [2020-07-18 06:32:13,188 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.07 06:32:13" (1/1) ... [2020-07-18 06:32:13,190 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-18 06:32:13,191 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-18 06:32:13,191 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-18 06:32:13,192 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-18 06:32:13,193 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.07 06:32:13" (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 [2020-07-18 06:32:13,282 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-18 06:32:13,282 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-18 06:32:13,282 INFO L138 BoogieDeclarations]: Found implementation of procedure init_nondet [2020-07-18 06:32:13,283 INFO L138 BoogieDeclarations]: Found implementation of procedure rangesum [2020-07-18 06:32:13,283 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-18 06:32:13,283 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-18 06:32:13,283 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-18 06:32:13,283 INFO L130 BoogieDeclarations]: Found specification of procedure init_nondet [2020-07-18 06:32:13,284 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-07-18 06:32:13,284 INFO L130 BoogieDeclarations]: Found specification of procedure rangesum [2020-07-18 06:32:13,284 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-07-18 06:32:13,284 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-18 06:32:13,284 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-07-18 06:32:13,285 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-07-18 06:32:13,285 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-18 06:32:13,285 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-18 06:32:14,043 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-18 06:32:14,044 INFO L295 CfgBuilder]: Removed 3 assume(true) statements. [2020-07-18 06:32:14,067 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.07 06:32:14 BoogieIcfgContainer [2020-07-18 06:32:14,067 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-18 06:32:14,071 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-18 06:32:14,072 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-18 06:32:14,080 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-18 06:32:14,081 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.07 06:32:12" (1/3) ... [2020-07-18 06:32:14,087 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@8384d96 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.07 06:32:14, skipping insertion in model container [2020-07-18 06:32:14,088 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.07 06:32:13" (2/3) ... [2020-07-18 06:32:14,088 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@8384d96 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.07 06:32:14, skipping insertion in model container [2020-07-18 06:32:14,088 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.07 06:32:14" (3/3) ... [2020-07-18 06:32:14,092 INFO L109 eAbstractionObserver]: Analyzing ICFG rangesum05.i [2020-07-18 06:32:14,101 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-07-18 06:32:14,109 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-18 06:32:14,124 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-18 06:32:14,147 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-18 06:32:14,148 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-18 06:32:14,148 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-07-18 06:32:14,148 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-18 06:32:14,149 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-18 06:32:14,149 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-18 06:32:14,149 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-18 06:32:14,149 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-18 06:32:14,170 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states. [2020-07-18 06:32:14,187 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2020-07-18 06:32:14,188 INFO L414 BasicCegarLoop]: Found error trace [2020-07-18 06:32:14,189 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-18 06:32:14,190 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-18 06:32:14,197 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-18 06:32:14,198 INFO L82 PathProgramCache]: Analyzing trace with hash 1280957069, now seen corresponding path program 1 times [2020-07-18 06:32:14,209 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-18 06:32:14,209 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1622591553] [2020-07-18 06:32:14,210 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-18 06:32:14,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-18 06:32:14,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-18 06:32:14,485 INFO L280 TraceCheckUtils]: 0: Hoare triple {135#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|))} #NULL.base, #NULL.offset := 0, 0; {89#true} is VALID [2020-07-18 06:32:14,486 INFO L280 TraceCheckUtils]: 1: Hoare triple {89#true} #valid := #valid[0 := 0]; {89#true} is VALID [2020-07-18 06:32:14,486 INFO L280 TraceCheckUtils]: 2: Hoare triple {89#true} assume 0 < #StackHeapBarrier; {89#true} is VALID [2020-07-18 06:32:14,487 INFO L280 TraceCheckUtils]: 3: Hoare triple {89#true} assume true; {89#true} is VALID [2020-07-18 06:32:14,487 INFO L275 TraceCheckUtils]: 4: Hoare quadruple {89#true} {89#true} #127#return; {89#true} is VALID [2020-07-18 06:32:14,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-18 06:32:14,539 INFO L280 TraceCheckUtils]: 0: Hoare triple {136#(= |#memory_int| |old(#memory_int)|)} ~x.base, ~x.offset := #in~x.base, #in~x.offset; {89#true} is VALID [2020-07-18 06:32:14,540 INFO L280 TraceCheckUtils]: 1: Hoare triple {89#true} havoc ~i~0; {89#true} is VALID [2020-07-18 06:32:14,542 INFO L280 TraceCheckUtils]: 2: Hoare triple {89#true} ~i~0 := 0; {137#(<= init_nondet_~i~0 0)} is VALID [2020-07-18 06:32:14,543 INFO L280 TraceCheckUtils]: 3: Hoare triple {137#(<= init_nondet_~i~0 0)} assume !(~i~0 < 5); {90#false} is VALID [2020-07-18 06:32:14,544 INFO L280 TraceCheckUtils]: 4: Hoare triple {90#false} assume true; {90#false} is VALID [2020-07-18 06:32:14,545 INFO L275 TraceCheckUtils]: 5: Hoare quadruple {90#false} {89#true} #131#return; {90#false} is VALID [2020-07-18 06:32:14,553 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1622591553] [2020-07-18 06:32:14,553 WARN L333 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2020-07-18 06:32:14,554 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 0 imperfect interpolant sequences. [2020-07-18 06:32:14,554 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [] total 0 [2020-07-18 06:32:14,554 ERROR L206 FreeRefinementEngine]: Strategy FIXED_PREFERENCES failed to provide any proof altough trace is infeasible [2020-07-18 06:32:14,556 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-07-18 06:32:14,562 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-07-18 06:32:14,585 WARN L170 areAnnotationChecker]: ULTIMATE.initENTRY has no Hoare annotation [2020-07-18 06:32:14,586 WARN L170 areAnnotationChecker]: ULTIMATE.startENTRY has no Hoare annotation [2020-07-18 06:32:14,586 WARN L170 areAnnotationChecker]: ULTIMATE.startENTRY has no Hoare annotation [2020-07-18 06:32:14,586 WARN L170 areAnnotationChecker]: mainENTRY has no Hoare annotation [2020-07-18 06:32:14,586 WARN L170 areAnnotationChecker]: rangesumENTRY has no Hoare annotation [2020-07-18 06:32:14,586 WARN L170 areAnnotationChecker]: init_nondetENTRY has no Hoare annotation [2020-07-18 06:32:14,587 WARN L170 areAnnotationChecker]: L-1 has no Hoare annotation [2020-07-18 06:32:14,587 WARN L170 areAnnotationChecker]: L-1 has no Hoare annotation [2020-07-18 06:32:14,587 WARN L170 areAnnotationChecker]: L-1 has no Hoare annotation [2020-07-18 06:32:14,587 WARN L170 areAnnotationChecker]: L31 has no Hoare annotation [2020-07-18 06:32:14,587 WARN L170 areAnnotationChecker]: L31 has no Hoare annotation [2020-07-18 06:32:14,587 WARN L170 areAnnotationChecker]: L13 has no Hoare annotation [2020-07-18 06:32:14,588 WARN L170 areAnnotationChecker]: L5 has no Hoare annotation [2020-07-18 06:32:14,588 WARN L170 areAnnotationChecker]: L-1-1 has no Hoare annotation [2020-07-18 06:32:14,588 WARN L170 areAnnotationChecker]: ULTIMATE.startFINAL has no Hoare annotation [2020-07-18 06:32:14,588 WARN L170 areAnnotationChecker]: L32 has no Hoare annotation [2020-07-18 06:32:14,588 WARN L170 areAnnotationChecker]: L14 has no Hoare annotation [2020-07-18 06:32:14,588 WARN L170 areAnnotationChecker]: L6 has no Hoare annotation [2020-07-18 06:32:14,589 WARN L170 areAnnotationChecker]: ULTIMATE.initFINAL has no Hoare annotation [2020-07-18 06:32:14,589 WARN L170 areAnnotationChecker]: L34 has no Hoare annotation [2020-07-18 06:32:14,589 WARN L170 areAnnotationChecker]: L15 has no Hoare annotation [2020-07-18 06:32:14,589 WARN L170 areAnnotationChecker]: L6-6 has no Hoare annotation [2020-07-18 06:32:14,589 WARN L170 areAnnotationChecker]: L6-6 has no Hoare annotation [2020-07-18 06:32:14,590 WARN L170 areAnnotationChecker]: L6-6 has no Hoare annotation [2020-07-18 06:32:14,590 WARN L170 areAnnotationChecker]: ULTIMATE.initEXIT has no Hoare annotation [2020-07-18 06:32:14,590 WARN L170 areAnnotationChecker]: L35 has no Hoare annotation [2020-07-18 06:32:14,590 WARN L170 areAnnotationChecker]: L16 has no Hoare annotation [2020-07-18 06:32:14,590 WARN L170 areAnnotationChecker]: L6-7 has no Hoare annotation [2020-07-18 06:32:14,591 WARN L170 areAnnotationChecker]: L7 has no Hoare annotation [2020-07-18 06:32:14,591 WARN L170 areAnnotationChecker]: L36 has no Hoare annotation [2020-07-18 06:32:14,591 WARN L170 areAnnotationChecker]: L17 has no Hoare annotation [2020-07-18 06:32:14,591 WARN L170 areAnnotationChecker]: init_nondetEXIT has no Hoare annotation [2020-07-18 06:32:14,591 WARN L170 areAnnotationChecker]: L7-1 has no Hoare annotation [2020-07-18 06:32:14,592 WARN L170 areAnnotationChecker]: L38 has no Hoare annotation [2020-07-18 06:32:14,592 WARN L170 areAnnotationChecker]: L38 has no Hoare annotation [2020-07-18 06:32:14,592 WARN L170 areAnnotationChecker]: L17-6 has no Hoare annotation [2020-07-18 06:32:14,592 WARN L170 areAnnotationChecker]: L17-6 has no Hoare annotation [2020-07-18 06:32:14,592 WARN L170 areAnnotationChecker]: L17-6 has no Hoare annotation [2020-07-18 06:32:14,593 WARN L170 areAnnotationChecker]: L7-2 has no Hoare annotation [2020-07-18 06:32:14,593 WARN L170 areAnnotationChecker]: L38-1 has no Hoare annotation [2020-07-18 06:32:14,593 WARN L170 areAnnotationChecker]: L17-7 has no Hoare annotation [2020-07-18 06:32:14,593 WARN L170 areAnnotationChecker]: L17-7 has no Hoare annotation [2020-07-18 06:32:14,593 WARN L170 areAnnotationChecker]: L18 has no Hoare annotation [2020-07-18 06:32:14,594 WARN L170 areAnnotationChecker]: L18 has no Hoare annotation [2020-07-18 06:32:14,594 WARN L170 areAnnotationChecker]: L6-3 has no Hoare annotation [2020-07-18 06:32:14,594 WARN L170 areAnnotationChecker]: L38-2 has no Hoare annotation [2020-07-18 06:32:14,594 WARN L170 areAnnotationChecker]: L24 has no Hoare annotation [2020-07-18 06:32:14,595 WARN L170 areAnnotationChecker]: L26 has no Hoare annotation [2020-07-18 06:32:14,595 WARN L170 areAnnotationChecker]: L19 has no Hoare annotation [2020-07-18 06:32:14,595 WARN L170 areAnnotationChecker]: L17-3 has no Hoare annotation [2020-07-18 06:32:14,595 WARN L170 areAnnotationChecker]: L6-4 has no Hoare annotation [2020-07-18 06:32:14,595 WARN L170 areAnnotationChecker]: L38-3 has no Hoare annotation [2020-07-18 06:32:14,596 WARN L170 areAnnotationChecker]: rangesumFINAL has no Hoare annotation [2020-07-18 06:32:14,596 WARN L170 areAnnotationChecker]: L19-1 has no Hoare annotation [2020-07-18 06:32:14,596 WARN L170 areAnnotationChecker]: L17-4 has no Hoare annotation [2020-07-18 06:32:14,596 WARN L170 areAnnotationChecker]: L6-5 has no Hoare annotation [2020-07-18 06:32:14,596 WARN L170 areAnnotationChecker]: L40 has no Hoare annotation [2020-07-18 06:32:14,596 WARN L170 areAnnotationChecker]: rangesumEXIT has no Hoare annotation [2020-07-18 06:32:14,597 WARN L170 areAnnotationChecker]: rangesumEXIT has no Hoare annotation [2020-07-18 06:32:14,597 WARN L170 areAnnotationChecker]: rangesumEXIT has no Hoare annotation [2020-07-18 06:32:14,597 WARN L170 areAnnotationChecker]: L19-2 has no Hoare annotation [2020-07-18 06:32:14,597 WARN L170 areAnnotationChecker]: L17-5 has no Hoare annotation [2020-07-18 06:32:14,597 WARN L170 areAnnotationChecker]: L40-1 has no Hoare annotation [2020-07-18 06:32:14,597 WARN L170 areAnnotationChecker]: L41 has no Hoare annotation [2020-07-18 06:32:14,598 WARN L170 areAnnotationChecker]: L47 has no Hoare annotation [2020-07-18 06:32:14,598 WARN L170 areAnnotationChecker]: L20 has no Hoare annotation [2020-07-18 06:32:14,598 WARN L170 areAnnotationChecker]: L40-2 has no Hoare annotation [2020-07-18 06:32:14,598 WARN L170 areAnnotationChecker]: L41-1 has no Hoare annotation [2020-07-18 06:32:14,598 WARN L170 areAnnotationChecker]: L47-1 has no Hoare annotation [2020-07-18 06:32:14,598 WARN L170 areAnnotationChecker]: L40-3 has no Hoare annotation [2020-07-18 06:32:14,599 WARN L170 areAnnotationChecker]: L41-2 has no Hoare annotation [2020-07-18 06:32:14,599 WARN L170 areAnnotationChecker]: L47-2 has no Hoare annotation [2020-07-18 06:32:14,599 WARN L170 areAnnotationChecker]: L40-4 has no Hoare annotation [2020-07-18 06:32:14,599 WARN L170 areAnnotationChecker]: L42 has no Hoare annotation [2020-07-18 06:32:14,599 WARN L170 areAnnotationChecker]: L49 has no Hoare annotation [2020-07-18 06:32:14,600 WARN L170 areAnnotationChecker]: L49 has no Hoare annotation [2020-07-18 06:32:14,600 WARN L170 areAnnotationChecker]: L40-5 has no Hoare annotation [2020-07-18 06:32:14,600 WARN L170 areAnnotationChecker]: L42-1 has no Hoare annotation [2020-07-18 06:32:14,600 WARN L170 areAnnotationChecker]: L50 has no Hoare annotation [2020-07-18 06:32:14,600 WARN L170 areAnnotationChecker]: L50 has no Hoare annotation [2020-07-18 06:32:14,601 WARN L170 areAnnotationChecker]: L49-2 has no Hoare annotation [2020-07-18 06:32:14,601 WARN L170 areAnnotationChecker]: L40-6 has no Hoare annotation [2020-07-18 06:32:14,601 WARN L170 areAnnotationChecker]: L42-2 has no Hoare annotation [2020-07-18 06:32:14,601 WARN L170 areAnnotationChecker]: L31-1 has no Hoare annotation [2020-07-18 06:32:14,601 WARN L170 areAnnotationChecker]: L40-7 has no Hoare annotation [2020-07-18 06:32:14,601 WARN L170 areAnnotationChecker]: L40-7 has no Hoare annotation [2020-07-18 06:32:14,602 WARN L170 areAnnotationChecker]: L43 has no Hoare annotation [2020-07-18 06:32:14,602 WARN L170 areAnnotationChecker]: L31-2 has no Hoare annotation [2020-07-18 06:32:14,602 WARN L170 areAnnotationChecker]: L43-6 has no Hoare annotation [2020-07-18 06:32:14,602 WARN L170 areAnnotationChecker]: L43-6 has no Hoare annotation [2020-07-18 06:32:14,602 WARN L170 areAnnotationChecker]: L43-6 has no Hoare annotation [2020-07-18 06:32:14,602 WARN L170 areAnnotationChecker]: mainFINAL has no Hoare annotation [2020-07-18 06:32:14,603 WARN L170 areAnnotationChecker]: L43-7 has no Hoare annotation [2020-07-18 06:32:14,603 WARN L170 areAnnotationChecker]: L44 has no Hoare annotation [2020-07-18 06:32:14,603 WARN L170 areAnnotationChecker]: mainEXIT has no Hoare annotation [2020-07-18 06:32:14,603 WARN L170 areAnnotationChecker]: L46 has no Hoare annotation [2020-07-18 06:32:14,603 WARN L170 areAnnotationChecker]: L46 has no Hoare annotation [2020-07-18 06:32:14,603 WARN L170 areAnnotationChecker]: L44-1 has no Hoare annotation [2020-07-18 06:32:14,604 WARN L170 areAnnotationChecker]: L44-2 has no Hoare annotation [2020-07-18 06:32:14,604 WARN L170 areAnnotationChecker]: L43-3 has no Hoare annotation [2020-07-18 06:32:14,604 WARN L170 areAnnotationChecker]: L43-4 has no Hoare annotation [2020-07-18 06:32:14,604 WARN L170 areAnnotationChecker]: L43-5 has no Hoare annotation [2020-07-18 06:32:14,604 INFO L163 areAnnotationChecker]: CFG has 0 edges. 0 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. 0 times interpolants missing. [2020-07-18 06:32:14,610 WARN L231 ceAbstractionStarter]: Unable to decide correctness. Please check the following counterexample manually. [2020-07-18 06:32:14,611 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.07 06:32:14 BoogieIcfgContainer [2020-07-18 06:32:14,611 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-18 06:32:14,616 INFO L168 Benchmark]: Toolchain (without parser) took 1890.25 ms. Allocated memory was 138.4 MB in the beginning and 203.4 MB in the end (delta: 65.0 MB). Free memory was 102.8 MB in the beginning and 114.1 MB in the end (delta: -11.3 MB). Peak memory consumption was 53.8 MB. Max. memory is 7.1 GB. [2020-07-18 06:32:14,617 INFO L168 Benchmark]: CDTParser took 0.97 ms. Allocated memory is still 138.4 MB. Free memory was 121.8 MB in the beginning and 121.6 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. [2020-07-18 06:32:14,618 INFO L168 Benchmark]: CACSL2BoogieTranslator took 403.66 ms. Allocated memory was 138.4 MB in the beginning and 203.4 MB in the end (delta: 65.0 MB). Free memory was 102.4 MB in the beginning and 182.5 MB in the end (delta: -80.0 MB). Peak memory consumption was 24.5 MB. Max. memory is 7.1 GB. [2020-07-18 06:32:14,619 INFO L168 Benchmark]: Boogie Preprocessor took 60.35 ms. Allocated memory is still 203.4 MB. Free memory was 182.5 MB in the beginning and 180.1 MB in the end (delta: 2.4 MB). Peak memory consumption was 2.4 MB. Max. memory is 7.1 GB. [2020-07-18 06:32:14,620 INFO L168 Benchmark]: RCFGBuilder took 876.62 ms. Allocated memory is still 203.4 MB. Free memory was 180.1 MB in the beginning and 145.1 MB in the end (delta: 35.0 MB). Peak memory consumption was 35.0 MB. Max. memory is 7.1 GB. [2020-07-18 06:32:14,621 INFO L168 Benchmark]: TraceAbstraction took 539.57 ms. Allocated memory is still 203.4 MB. Free memory was 144.4 MB in the beginning and 114.1 MB in the end (delta: 30.3 MB). Peak memory consumption was 30.3 MB. Max. memory is 7.1 GB. [2020-07-18 06:32:14,625 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 0.97 ms. Allocated memory is still 138.4 MB. Free memory was 121.8 MB in the beginning and 121.6 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 403.66 ms. Allocated memory was 138.4 MB in the beginning and 203.4 MB in the end (delta: 65.0 MB). Free memory was 102.4 MB in the beginning and 182.5 MB in the end (delta: -80.0 MB). Peak memory consumption was 24.5 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 60.35 ms. Allocated memory is still 203.4 MB. Free memory was 182.5 MB in the beginning and 180.1 MB in the end (delta: 2.4 MB). Peak memory consumption was 2.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 876.62 ms. Allocated memory is still 203.4 MB. Free memory was 180.1 MB in the beginning and 145.1 MB in the end (delta: 35.0 MB). Peak memory consumption was 35.0 MB. Max. memory is 7.1 GB. * TraceAbstraction took 539.57 ms. Allocated memory is still 203.4 MB. Free memory was 144.4 MB in the beginning and 114.1 MB in the end (delta: 30.3 MB). Peak memory consumption was 30.3 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 50]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: unable to decide satisfiability of path constraint. Possible FailurePath: [L31] int x[5]; [L32] CALL init_nondet(x) [L5] int i; [L6] i = 0 [L6] COND FALSE !(i < 5) [L32] RET init_nondet(x) [L33] int temp; [L34] int ret; [L35] int ret2; [L36] int ret5; [L38] CALL, EXPR rangesum(x) [L13] int i; [L14] long long ret; [L15] ret = 0 [L16] int cnt = 0; [L17] i = 0 [L17] COND FALSE !(i < 5) [L23] COND TRUE cnt !=0 [L24] return ret / cnt; [L38] RET, EXPR rangesum(x) [L38] ret = rangesum(x) [L40] EXPR x[0] [L40] temp=x[0] [L40] EXPR x[1] [L40] x[0] = x[1] [L40] x[1] = temp [L41] CALL, EXPR rangesum(x) [L13] int i; [L14] long long ret; [L15] ret = 0 [L16] int cnt = 0; [L17] i = 0 [L17] COND FALSE !(i < 5) [L23] COND TRUE cnt !=0 [L24] return ret / cnt; [L41] RET, EXPR rangesum(x) [L41] ret2 = rangesum(x) [L42] EXPR x[0] [L42] temp=x[0] [L43] int i =0 ; [L46] x[5 -1] = temp [L47] CALL, EXPR rangesum(x) [L13] int i; [L14] long long ret; [L15] ret = 0 [L16] int cnt = 0; [L17] i = 0 [L17] COND FALSE !(i < 5) [L23] COND TRUE cnt !=0 [L24] return ret / cnt; [L47] RET, EXPR rangesum(x) [L47] ret5 = rangesum(x) [L49] COND TRUE ret != ret2 || ret !=ret5 [L50] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 86 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNKNOWN, OverallTime: 0.4s, OverallIterations: 1, TraceHistogramMax: 3, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=86occurred 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: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 79 NumberOfCodeBlocks, 79 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 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...