/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/array-fpi/res1f.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-46f3038-m [2020-07-08 17:36:29,224 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-08 17:36:29,229 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-08 17:36:29,247 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-08 17:36:29,247 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-08 17:36:29,249 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-08 17:36:29,251 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-08 17:36:29,261 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-08 17:36:29,263 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-08 17:36:29,264 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-08 17:36:29,265 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-08 17:36:29,266 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-08 17:36:29,268 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-08 17:36:29,270 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-08 17:36:29,272 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-08 17:36:29,274 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-08 17:36:29,276 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-08 17:36:29,277 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-08 17:36:29,279 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-08 17:36:29,284 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-08 17:36:29,288 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-08 17:36:29,290 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-08 17:36:29,291 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-08 17:36:29,292 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-08 17:36:29,294 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-07-08 17:36:29,306 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-08 17:36:29,307 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-08 17:36:29,308 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-08 17:36:29,309 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2020-07-08 17:36:29,332 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-08 17:36:29,333 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-08 17:36:29,335 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-08 17:36:29,335 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-08 17:36:29,335 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-08 17:36:29,336 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-08 17:36:29,336 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-08 17:36:29,336 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-08 17:36:29,336 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-08 17:36:29,336 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-08 17:36:29,337 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-08 17:36:29,338 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-08 17:36:29,338 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-08 17:36:29,338 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-08 17:36:29,338 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-08 17:36:29,339 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-07-08 17:36:29,339 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-08 17:36:29,339 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-08 17:36:29,339 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-08 17:36:29,339 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-08 17:36:29,340 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-07-08 17:36:29,340 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-08 17:36:29,340 INFO L138 SettingsManager]: * Use separate solver for trace checks=false [2020-07-08 17:36:29,609 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-08 17:36:29,621 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-08 17:36:29,625 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-08 17:36:29,626 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-08 17:36:29,627 INFO L275 PluginConnector]: CDTParser initialized [2020-07-08 17:36:29,627 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/array-fpi/res1f.c [2020-07-08 17:36:29,704 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cfc4b4ee4/b7dc9c82b5474fe5afb27cb1e1f6ee53/FLAGbea5101ec [2020-07-08 17:36:30,183 INFO L306 CDTParser]: Found 1 translation units. [2020-07-08 17:36:30,184 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/array-fpi/res1f.c [2020-07-08 17:36:30,191 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cfc4b4ee4/b7dc9c82b5474fe5afb27cb1e1f6ee53/FLAGbea5101ec [2020-07-08 17:36:30,561 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cfc4b4ee4/b7dc9c82b5474fe5afb27cb1e1f6ee53 [2020-07-08 17:36:30,572 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-08 17:36:30,574 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-08 17:36:30,575 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-08 17:36:30,576 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-08 17:36:30,582 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-08 17:36:30,583 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.07 05:36:30" (1/1) ... [2020-07-08 17:36:30,587 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2b757e7f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.07 05:36:30, skipping insertion in model container [2020-07-08 17:36:30,587 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.07 05:36:30" (1/1) ... [2020-07-08 17:36:30,595 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-08 17:36:30,615 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-08 17:36:30,853 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-08 17:36:30,864 INFO L203 MainTranslator]: Completed pre-run [2020-07-08 17:36:30,891 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-08 17:36:30,994 INFO L208 MainTranslator]: Completed translation [2020-07-08 17:36:30,995 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.07 05:36:30 WrapperNode [2020-07-08 17:36:30,995 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-08 17:36:30,996 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-08 17:36:30,996 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-08 17:36:30,996 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-08 17:36:31,010 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.07 05:36:30" (1/1) ... [2020-07-08 17:36:31,011 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.07 05:36:30" (1/1) ... [2020-07-08 17:36:31,019 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.07 05:36:30" (1/1) ... [2020-07-08 17:36:31,019 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.07 05:36:30" (1/1) ... [2020-07-08 17:36:31,040 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.07 05:36:30" (1/1) ... [2020-07-08 17:36:31,047 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.07 05:36:30" (1/1) ... [2020-07-08 17:36:31,049 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.07 05:36:30" (1/1) ... [2020-07-08 17:36:31,051 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-08 17:36:31,052 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-08 17:36:31,052 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-08 17:36:31,052 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-08 17:36:31,053 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.07 05:36:30" (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 [2020-07-08 17:36:31,117 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-08 17:36:31,118 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-08 17:36:31,118 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-07-08 17:36:31,118 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-07-08 17:36:31,118 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-08 17:36:31,118 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-08 17:36:31,118 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-07-08 17:36:31,118 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-07-08 17:36:31,118 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-07-08 17:36:31,119 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-08 17:36:31,119 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-07-08 17:36:31,119 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-08 17:36:31,119 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-07-08 17:36:31,119 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-07-08 17:36:31,120 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-07-08 17:36:31,120 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-07-08 17:36:31,120 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-07-08 17:36:31,121 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-08 17:36:31,121 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-08 17:36:31,634 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-08 17:36:31,635 INFO L295 CfgBuilder]: Removed 4 assume(true) statements. [2020-07-08 17:36:31,639 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.07 05:36:31 BoogieIcfgContainer [2020-07-08 17:36:31,640 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-08 17:36:31,641 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-08 17:36:31,641 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-08 17:36:31,645 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-08 17:36:31,645 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.07 05:36:30" (1/3) ... [2020-07-08 17:36:31,646 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3543ce2a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.07 05:36:31, skipping insertion in model container [2020-07-08 17:36:31,646 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.07 05:36:30" (2/3) ... [2020-07-08 17:36:31,647 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3543ce2a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.07 05:36:31, skipping insertion in model container [2020-07-08 17:36:31,647 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.07 05:36:31" (3/3) ... [2020-07-08 17:36:31,649 INFO L109 eAbstractionObserver]: Analyzing ICFG res1f.c [2020-07-08 17:36:31,660 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-07-08 17:36:31,669 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-08 17:36:31,685 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-08 17:36:31,710 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-08 17:36:31,710 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-08 17:36:31,711 INFO L377 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2020-07-08 17:36:31,711 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-08 17:36:31,711 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-08 17:36:31,712 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-08 17:36:31,712 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-08 17:36:31,712 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-08 17:36:31,730 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states. [2020-07-08 17:36:31,742 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2020-07-08 17:36:31,743 INFO L414 BasicCegarLoop]: Found error trace [2020-07-08 17:36:31,744 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-08 17:36:31,745 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-08 17:36:31,751 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-08 17:36:31,751 INFO L82 PathProgramCache]: Analyzing trace with hash -1226656927, now seen corresponding path program 1 times [2020-07-08 17:36:31,761 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-08 17:36:31,761 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [250142126] [2020-07-08 17:36:31,762 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-08 17:36:31,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 17:36:32,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 17:36:32,046 INFO L280 TraceCheckUtils]: 0: Hoare triple {89#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= ~N~0 |old(~N~0)|) (= |#NULL.offset| |old(#NULL.offset)|))} #NULL.base, #NULL.offset := 0, 0; {77#true} is VALID [2020-07-08 17:36:32,047 INFO L280 TraceCheckUtils]: 1: Hoare triple {77#true} #valid := #valid[0 := 0]; {77#true} is VALID [2020-07-08 17:36:32,047 INFO L280 TraceCheckUtils]: 2: Hoare triple {77#true} assume 0 < #StackHeapBarrier; {77#true} is VALID [2020-07-08 17:36:32,047 INFO L280 TraceCheckUtils]: 3: Hoare triple {77#true} ~N~0 := 0; {77#true} is VALID [2020-07-08 17:36:32,048 INFO L280 TraceCheckUtils]: 4: Hoare triple {77#true} assume true; {77#true} is VALID [2020-07-08 17:36:32,049 INFO L275 TraceCheckUtils]: 5: Hoare quadruple {77#true} {77#true} #132#return; {77#true} is VALID [2020-07-08 17:36:32,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 17:36:32,058 INFO L280 TraceCheckUtils]: 0: Hoare triple {77#true} ~cond := #in~cond; {77#true} is VALID [2020-07-08 17:36:32,059 INFO L280 TraceCheckUtils]: 1: Hoare triple {77#true} assume !(0 == ~cond); {77#true} is VALID [2020-07-08 17:36:32,059 INFO L280 TraceCheckUtils]: 2: Hoare triple {77#true} assume true; {77#true} is VALID [2020-07-08 17:36:32,060 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {77#true} {77#true} #128#return; {77#true} is VALID [2020-07-08 17:36:32,062 INFO L263 TraceCheckUtils]: 0: Hoare triple {77#true} call ULTIMATE.init(); {89#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= ~N~0 |old(~N~0)|) (= |#NULL.offset| |old(#NULL.offset)|))} is VALID [2020-07-08 17:36:32,062 INFO L280 TraceCheckUtils]: 1: Hoare triple {89#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= ~N~0 |old(~N~0)|) (= |#NULL.offset| |old(#NULL.offset)|))} #NULL.base, #NULL.offset := 0, 0; {77#true} is VALID [2020-07-08 17:36:32,062 INFO L280 TraceCheckUtils]: 2: Hoare triple {77#true} #valid := #valid[0 := 0]; {77#true} is VALID [2020-07-08 17:36:32,063 INFO L280 TraceCheckUtils]: 3: Hoare triple {77#true} assume 0 < #StackHeapBarrier; {77#true} is VALID [2020-07-08 17:36:32,063 INFO L280 TraceCheckUtils]: 4: Hoare triple {77#true} ~N~0 := 0; {77#true} is VALID [2020-07-08 17:36:32,064 INFO L280 TraceCheckUtils]: 5: Hoare triple {77#true} assume true; {77#true} is VALID [2020-07-08 17:36:32,064 INFO L275 TraceCheckUtils]: 6: Hoare quadruple {77#true} {77#true} #132#return; {77#true} is VALID [2020-07-08 17:36:32,064 INFO L263 TraceCheckUtils]: 7: Hoare triple {77#true} call #t~ret12 := main(); {77#true} is VALID [2020-07-08 17:36:32,065 INFO L280 TraceCheckUtils]: 8: Hoare triple {77#true} assume -2147483648 <= #t~nondet0 && #t~nondet0 <= 2147483647; {77#true} is VALID [2020-07-08 17:36:32,065 INFO L280 TraceCheckUtils]: 9: Hoare triple {77#true} ~N~0 := #t~nondet0; {77#true} is VALID [2020-07-08 17:36:32,066 INFO L280 TraceCheckUtils]: 10: Hoare triple {77#true} havoc #t~nondet0; {77#true} is VALID [2020-07-08 17:36:32,066 INFO L280 TraceCheckUtils]: 11: Hoare triple {77#true} assume !(~N~0 <= 0); {77#true} is VALID [2020-07-08 17:36:32,066 INFO L263 TraceCheckUtils]: 12: Hoare triple {77#true} call assume_abort_if_not((if ~N~0 <= 536870911 then 1 else 0)); {77#true} is VALID [2020-07-08 17:36:32,067 INFO L280 TraceCheckUtils]: 13: Hoare triple {77#true} ~cond := #in~cond; {77#true} is VALID [2020-07-08 17:36:32,067 INFO L280 TraceCheckUtils]: 14: Hoare triple {77#true} assume !(0 == ~cond); {77#true} is VALID [2020-07-08 17:36:32,068 INFO L280 TraceCheckUtils]: 15: Hoare triple {77#true} assume true; {77#true} is VALID [2020-07-08 17:36:32,068 INFO L275 TraceCheckUtils]: 16: Hoare quadruple {77#true} {77#true} #128#return; {77#true} is VALID [2020-07-08 17:36:32,068 INFO L280 TraceCheckUtils]: 17: Hoare triple {77#true} havoc ~i~0; {77#true} is VALID [2020-07-08 17:36:32,069 INFO L280 TraceCheckUtils]: 18: Hoare triple {77#true} SUMMARY for call ~#sum~0.base, ~#sum~0.offset := #Ultimate.allocOnStack(8); srcloc: L26 {77#true} is VALID [2020-07-08 17:36:32,069 INFO L280 TraceCheckUtils]: 19: Hoare triple {77#true} SUMMARY for call #t~malloc1.base, #t~malloc1.offset := #Ultimate.allocOnHeap(4 * ~N~0); srcloc: L26-1 {77#true} is VALID [2020-07-08 17:36:32,070 INFO L280 TraceCheckUtils]: 20: Hoare triple {77#true} ~a~0.base, ~a~0.offset := #t~malloc1.base, #t~malloc1.offset; {77#true} is VALID [2020-07-08 17:36:32,070 INFO L280 TraceCheckUtils]: 21: Hoare triple {77#true} SUMMARY for call #t~malloc2.base, #t~malloc2.offset := #Ultimate.allocOnHeap(4 * ~N~0); srcloc: L28 {77#true} is VALID [2020-07-08 17:36:32,071 INFO L280 TraceCheckUtils]: 22: Hoare triple {77#true} ~b~0.base, ~b~0.offset := #t~malloc2.base, #t~malloc2.offset; {77#true} is VALID [2020-07-08 17:36:32,071 INFO L280 TraceCheckUtils]: 23: Hoare triple {77#true} SUMMARY for call write~int(1, ~#sum~0.base, ~#sum~0.offset, 8); srcloc: L30 {77#true} is VALID [2020-07-08 17:36:32,071 INFO L280 TraceCheckUtils]: 24: Hoare triple {77#true} ~i~0 := 0; {77#true} is VALID [2020-07-08 17:36:32,073 INFO L280 TraceCheckUtils]: 25: Hoare triple {77#true} assume !true; {78#false} is VALID [2020-07-08 17:36:32,073 INFO L280 TraceCheckUtils]: 26: Hoare triple {78#false} ~i~0 := 0; {78#false} is VALID [2020-07-08 17:36:32,073 INFO L280 TraceCheckUtils]: 27: Hoare triple {78#false} assume !(~i~0 < ~N~0); {78#false} is VALID [2020-07-08 17:36:32,074 INFO L280 TraceCheckUtils]: 28: Hoare triple {78#false} ~i~0 := 0; {78#false} is VALID [2020-07-08 17:36:32,074 INFO L280 TraceCheckUtils]: 29: Hoare triple {78#false} assume !(~i~0 < ~N~0); {78#false} is VALID [2020-07-08 17:36:32,075 INFO L280 TraceCheckUtils]: 30: Hoare triple {78#false} ~i~0 := 0; {78#false} is VALID [2020-07-08 17:36:32,075 INFO L280 TraceCheckUtils]: 31: Hoare triple {78#false} assume !true; {78#false} is VALID [2020-07-08 17:36:32,075 INFO L280 TraceCheckUtils]: 32: Hoare triple {78#false} SUMMARY for call #t~mem11 := read~int(~#sum~0.base, ~#sum~0.offset, 8); srcloc: L46-6 {78#false} is VALID [2020-07-08 17:36:32,076 INFO L263 TraceCheckUtils]: 33: Hoare triple {78#false} call __VERIFIER_assert((if #t~mem11 <= 2 * ~N~0 then 1 else 0)); {78#false} is VALID [2020-07-08 17:36:32,076 INFO L280 TraceCheckUtils]: 34: Hoare triple {78#false} ~cond := #in~cond; {78#false} is VALID [2020-07-08 17:36:32,077 INFO L280 TraceCheckUtils]: 35: Hoare triple {78#false} assume 0 == ~cond; {78#false} is VALID [2020-07-08 17:36:32,077 INFO L280 TraceCheckUtils]: 36: Hoare triple {78#false} assume !false; {78#false} is VALID [2020-07-08 17:36:32,082 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-08 17:36:32,083 INFO L185 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-08 17:36:32,085 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [250142126] [2020-07-08 17:36:32,087 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-08 17:36:32,087 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-08 17:36:32,088 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1631959244] [2020-07-08 17:36:32,093 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 37 [2020-07-08 17:36:32,096 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-08 17:36:32,100 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states. [2020-07-08 17:36:32,159 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 37 edges. 37 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-08 17:36:32,159 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-08 17:36:32,160 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-08 17:36:32,167 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-08 17:36:32,168 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-08 17:36:32,170 INFO L87 Difference]: Start difference. First operand 74 states. Second operand 3 states. [2020-07-08 17:36:32,708 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-08 17:36:32,710 INFO L93 Difference]: Finished difference Result 131 states and 150 transitions. [2020-07-08 17:36:32,710 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-08 17:36:32,711 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 37 [2020-07-08 17:36:32,712 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-08 17:36:32,714 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-08 17:36:32,737 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 150 transitions. [2020-07-08 17:36:32,737 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-08 17:36:32,745 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 150 transitions. [2020-07-08 17:36:32,745 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states and 150 transitions. [2020-07-08 17:36:32,923 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 150 edges. 150 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-08 17:36:32,954 INFO L225 Difference]: With dead ends: 131 [2020-07-08 17:36:32,954 INFO L226 Difference]: Without dead ends: 62 [2020-07-08 17:36:32,960 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-08 17:36:32,980 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62 states. [2020-07-08 17:36:33,075 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62 to 62. [2020-07-08 17:36:33,075 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-08 17:36:33,076 INFO L82 GeneralOperation]: Start isEquivalent. First operand 62 states. Second operand 62 states. [2020-07-08 17:36:33,076 INFO L74 IsIncluded]: Start isIncluded. First operand 62 states. Second operand 62 states. [2020-07-08 17:36:33,077 INFO L87 Difference]: Start difference. First operand 62 states. Second operand 62 states. [2020-07-08 17:36:33,082 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-08 17:36:33,083 INFO L93 Difference]: Finished difference Result 62 states and 65 transitions. [2020-07-08 17:36:33,083 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 65 transitions. [2020-07-08 17:36:33,084 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-08 17:36:33,084 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-08 17:36:33,084 INFO L74 IsIncluded]: Start isIncluded. First operand 62 states. Second operand 62 states. [2020-07-08 17:36:33,085 INFO L87 Difference]: Start difference. First operand 62 states. Second operand 62 states. [2020-07-08 17:36:33,090 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-08 17:36:33,090 INFO L93 Difference]: Finished difference Result 62 states and 65 transitions. [2020-07-08 17:36:33,091 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 65 transitions. [2020-07-08 17:36:33,092 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-08 17:36:33,092 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-08 17:36:33,092 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-08 17:36:33,092 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-08 17:36:33,093 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 62 states. [2020-07-08 17:36:33,096 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 65 transitions. [2020-07-08 17:36:33,098 INFO L78 Accepts]: Start accepts. Automaton has 62 states and 65 transitions. Word has length 37 [2020-07-08 17:36:33,099 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-08 17:36:33,099 INFO L479 AbstractCegarLoop]: Abstraction has 62 states and 65 transitions. [2020-07-08 17:36:33,099 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-08 17:36:33,099 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 62 states and 65 transitions. [2020-07-08 17:36:33,186 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 65 edges. 65 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-08 17:36:33,187 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 65 transitions. [2020-07-08 17:36:33,188 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2020-07-08 17:36:33,189 INFO L414 BasicCegarLoop]: Found error trace [2020-07-08 17:36:33,189 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] [2020-07-08 17:36:33,189 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-07-08 17:36:33,189 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-08 17:36:33,190 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-08 17:36:33,190 INFO L82 PathProgramCache]: Analyzing trace with hash 1534386935, now seen corresponding path program 1 times [2020-07-08 17:36:33,190 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-08 17:36:33,191 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1367812796] [2020-07-08 17:36:33,191 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-08 17:36:33,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 17:36:33,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 17:36:33,316 INFO L280 TraceCheckUtils]: 0: Hoare triple {616#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= ~N~0 |old(~N~0)|) (= |#NULL.offset| |old(#NULL.offset)|))} #NULL.base, #NULL.offset := 0, 0; {602#true} is VALID [2020-07-08 17:36:33,317 INFO L280 TraceCheckUtils]: 1: Hoare triple {602#true} #valid := #valid[0 := 0]; {602#true} is VALID [2020-07-08 17:36:33,317 INFO L280 TraceCheckUtils]: 2: Hoare triple {602#true} assume 0 < #StackHeapBarrier; {602#true} is VALID [2020-07-08 17:36:33,318 INFO L280 TraceCheckUtils]: 3: Hoare triple {602#true} ~N~0 := 0; {602#true} is VALID [2020-07-08 17:36:33,318 INFO L280 TraceCheckUtils]: 4: Hoare triple {602#true} assume true; {602#true} is VALID [2020-07-08 17:36:33,318 INFO L275 TraceCheckUtils]: 5: Hoare quadruple {602#true} {602#true} #132#return; {602#true} is VALID [2020-07-08 17:36:33,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 17:36:33,327 INFO L280 TraceCheckUtils]: 0: Hoare triple {602#true} ~cond := #in~cond; {602#true} is VALID [2020-07-08 17:36:33,328 INFO L280 TraceCheckUtils]: 1: Hoare triple {602#true} assume !(0 == ~cond); {602#true} is VALID [2020-07-08 17:36:33,328 INFO L280 TraceCheckUtils]: 2: Hoare triple {602#true} assume true; {602#true} is VALID [2020-07-08 17:36:33,329 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {602#true} {610#(<= 1 ~N~0)} #128#return; {610#(<= 1 ~N~0)} is VALID [2020-07-08 17:36:33,330 INFO L263 TraceCheckUtils]: 0: Hoare triple {602#true} call ULTIMATE.init(); {616#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= ~N~0 |old(~N~0)|) (= |#NULL.offset| |old(#NULL.offset)|))} is VALID [2020-07-08 17:36:33,331 INFO L280 TraceCheckUtils]: 1: Hoare triple {616#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= ~N~0 |old(~N~0)|) (= |#NULL.offset| |old(#NULL.offset)|))} #NULL.base, #NULL.offset := 0, 0; {602#true} is VALID [2020-07-08 17:36:33,331 INFO L280 TraceCheckUtils]: 2: Hoare triple {602#true} #valid := #valid[0 := 0]; {602#true} is VALID [2020-07-08 17:36:33,332 INFO L280 TraceCheckUtils]: 3: Hoare triple {602#true} assume 0 < #StackHeapBarrier; {602#true} is VALID [2020-07-08 17:36:33,332 INFO L280 TraceCheckUtils]: 4: Hoare triple {602#true} ~N~0 := 0; {602#true} is VALID [2020-07-08 17:36:33,332 INFO L280 TraceCheckUtils]: 5: Hoare triple {602#true} assume true; {602#true} is VALID [2020-07-08 17:36:33,333 INFO L275 TraceCheckUtils]: 6: Hoare quadruple {602#true} {602#true} #132#return; {602#true} is VALID [2020-07-08 17:36:33,333 INFO L263 TraceCheckUtils]: 7: Hoare triple {602#true} call #t~ret12 := main(); {602#true} is VALID [2020-07-08 17:36:33,333 INFO L280 TraceCheckUtils]: 8: Hoare triple {602#true} assume -2147483648 <= #t~nondet0 && #t~nondet0 <= 2147483647; {602#true} is VALID [2020-07-08 17:36:33,334 INFO L280 TraceCheckUtils]: 9: Hoare triple {602#true} ~N~0 := #t~nondet0; {602#true} is VALID [2020-07-08 17:36:33,334 INFO L280 TraceCheckUtils]: 10: Hoare triple {602#true} havoc #t~nondet0; {602#true} is VALID [2020-07-08 17:36:33,335 INFO L280 TraceCheckUtils]: 11: Hoare triple {602#true} assume !(~N~0 <= 0); {610#(<= 1 ~N~0)} is VALID [2020-07-08 17:36:33,336 INFO L263 TraceCheckUtils]: 12: Hoare triple {610#(<= 1 ~N~0)} call assume_abort_if_not((if ~N~0 <= 536870911 then 1 else 0)); {602#true} is VALID [2020-07-08 17:36:33,336 INFO L280 TraceCheckUtils]: 13: Hoare triple {602#true} ~cond := #in~cond; {602#true} is VALID [2020-07-08 17:36:33,337 INFO L280 TraceCheckUtils]: 14: Hoare triple {602#true} assume !(0 == ~cond); {602#true} is VALID [2020-07-08 17:36:33,337 INFO L280 TraceCheckUtils]: 15: Hoare triple {602#true} assume true; {602#true} is VALID [2020-07-08 17:36:33,338 INFO L275 TraceCheckUtils]: 16: Hoare quadruple {602#true} {610#(<= 1 ~N~0)} #128#return; {610#(<= 1 ~N~0)} is VALID [2020-07-08 17:36:33,339 INFO L280 TraceCheckUtils]: 17: Hoare triple {610#(<= 1 ~N~0)} havoc ~i~0; {610#(<= 1 ~N~0)} is VALID [2020-07-08 17:36:33,340 INFO L280 TraceCheckUtils]: 18: Hoare triple {610#(<= 1 ~N~0)} SUMMARY for call ~#sum~0.base, ~#sum~0.offset := #Ultimate.allocOnStack(8); srcloc: L26 {610#(<= 1 ~N~0)} is VALID [2020-07-08 17:36:33,341 INFO L280 TraceCheckUtils]: 19: Hoare triple {610#(<= 1 ~N~0)} SUMMARY for call #t~malloc1.base, #t~malloc1.offset := #Ultimate.allocOnHeap(4 * ~N~0); srcloc: L26-1 {610#(<= 1 ~N~0)} is VALID [2020-07-08 17:36:33,342 INFO L280 TraceCheckUtils]: 20: Hoare triple {610#(<= 1 ~N~0)} ~a~0.base, ~a~0.offset := #t~malloc1.base, #t~malloc1.offset; {610#(<= 1 ~N~0)} is VALID [2020-07-08 17:36:33,342 INFO L280 TraceCheckUtils]: 21: Hoare triple {610#(<= 1 ~N~0)} SUMMARY for call #t~malloc2.base, #t~malloc2.offset := #Ultimate.allocOnHeap(4 * ~N~0); srcloc: L28 {610#(<= 1 ~N~0)} is VALID [2020-07-08 17:36:33,343 INFO L280 TraceCheckUtils]: 22: Hoare triple {610#(<= 1 ~N~0)} ~b~0.base, ~b~0.offset := #t~malloc2.base, #t~malloc2.offset; {610#(<= 1 ~N~0)} is VALID [2020-07-08 17:36:33,344 INFO L280 TraceCheckUtils]: 23: Hoare triple {610#(<= 1 ~N~0)} SUMMARY for call write~int(1, ~#sum~0.base, ~#sum~0.offset, 8); srcloc: L30 {610#(<= 1 ~N~0)} is VALID [2020-07-08 17:36:33,345 INFO L280 TraceCheckUtils]: 24: Hoare triple {610#(<= 1 ~N~0)} ~i~0 := 0; {615#(and (= 0 main_~i~0) (<= 1 ~N~0))} is VALID [2020-07-08 17:36:33,346 INFO L280 TraceCheckUtils]: 25: Hoare triple {615#(and (= 0 main_~i~0) (<= 1 ~N~0))} assume !(~i~0 < ~N~0); {603#false} is VALID [2020-07-08 17:36:33,346 INFO L280 TraceCheckUtils]: 26: Hoare triple {603#false} ~i~0 := 0; {603#false} is VALID [2020-07-08 17:36:33,347 INFO L280 TraceCheckUtils]: 27: Hoare triple {603#false} assume !(~i~0 < ~N~0); {603#false} is VALID [2020-07-08 17:36:33,347 INFO L280 TraceCheckUtils]: 28: Hoare triple {603#false} ~i~0 := 0; {603#false} is VALID [2020-07-08 17:36:33,347 INFO L280 TraceCheckUtils]: 29: Hoare triple {603#false} assume !(~i~0 < ~N~0); {603#false} is VALID [2020-07-08 17:36:33,348 INFO L280 TraceCheckUtils]: 30: Hoare triple {603#false} ~i~0 := 0; {603#false} is VALID [2020-07-08 17:36:33,348 INFO L280 TraceCheckUtils]: 31: Hoare triple {603#false} assume !(~i~0 < ~N~0); {603#false} is VALID [2020-07-08 17:36:33,349 INFO L280 TraceCheckUtils]: 32: Hoare triple {603#false} SUMMARY for call #t~mem11 := read~int(~#sum~0.base, ~#sum~0.offset, 8); srcloc: L46-6 {603#false} is VALID [2020-07-08 17:36:33,349 INFO L263 TraceCheckUtils]: 33: Hoare triple {603#false} call __VERIFIER_assert((if #t~mem11 <= 2 * ~N~0 then 1 else 0)); {603#false} is VALID [2020-07-08 17:36:33,349 INFO L280 TraceCheckUtils]: 34: Hoare triple {603#false} ~cond := #in~cond; {603#false} is VALID [2020-07-08 17:36:33,350 INFO L280 TraceCheckUtils]: 35: Hoare triple {603#false} assume 0 == ~cond; {603#false} is VALID [2020-07-08 17:36:33,350 INFO L280 TraceCheckUtils]: 36: Hoare triple {603#false} assume !false; {603#false} is VALID [2020-07-08 17:36:33,354 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-08 17:36:33,354 INFO L185 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-08 17:36:33,355 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1367812796] [2020-07-08 17:36:33,355 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-08 17:36:33,355 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-08 17:36:33,355 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [510322164] [2020-07-08 17:36:33,356 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 37 [2020-07-08 17:36:33,357 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-08 17:36:33,357 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 5 states. [2020-07-08 17:36:33,403 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 37 edges. 37 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-08 17:36:33,403 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-08 17:36:33,403 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-08 17:36:33,404 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-08 17:36:33,404 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-07-08 17:36:33,404 INFO L87 Difference]: Start difference. First operand 62 states and 65 transitions. Second operand 5 states. [2020-07-08 17:36:34,023 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-08 17:36:34,023 INFO L93 Difference]: Finished difference Result 118 states and 127 transitions. [2020-07-08 17:36:34,023 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-08 17:36:34,023 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 37 [2020-07-08 17:36:34,024 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-08 17:36:34,024 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2020-07-08 17:36:34,028 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 127 transitions. [2020-07-08 17:36:34,028 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2020-07-08 17:36:34,031 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 127 transitions. [2020-07-08 17:36:34,032 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 6 states and 127 transitions. [2020-07-08 17:36:34,180 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 127 edges. 127 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-08 17:36:34,185 INFO L225 Difference]: With dead ends: 118 [2020-07-08 17:36:34,185 INFO L226 Difference]: Without dead ends: 86 [2020-07-08 17:36:34,187 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-07-08 17:36:34,187 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86 states. [2020-07-08 17:36:34,285 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86 to 66. [2020-07-08 17:36:34,285 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-08 17:36:34,285 INFO L82 GeneralOperation]: Start isEquivalent. First operand 86 states. Second operand 66 states. [2020-07-08 17:36:34,286 INFO L74 IsIncluded]: Start isIncluded. First operand 86 states. Second operand 66 states. [2020-07-08 17:36:34,286 INFO L87 Difference]: Start difference. First operand 86 states. Second operand 66 states. [2020-07-08 17:36:34,291 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-08 17:36:34,291 INFO L93 Difference]: Finished difference Result 86 states and 89 transitions. [2020-07-08 17:36:34,291 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 89 transitions. [2020-07-08 17:36:34,292 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-08 17:36:34,292 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-08 17:36:34,293 INFO L74 IsIncluded]: Start isIncluded. First operand 66 states. Second operand 86 states. [2020-07-08 17:36:34,293 INFO L87 Difference]: Start difference. First operand 66 states. Second operand 86 states. [2020-07-08 17:36:34,303 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-08 17:36:34,303 INFO L93 Difference]: Finished difference Result 86 states and 89 transitions. [2020-07-08 17:36:34,303 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 89 transitions. [2020-07-08 17:36:34,308 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-08 17:36:34,308 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-08 17:36:34,308 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-08 17:36:34,308 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-08 17:36:34,309 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 66 states. [2020-07-08 17:36:34,312 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 69 transitions. [2020-07-08 17:36:34,313 INFO L78 Accepts]: Start accepts. Automaton has 66 states and 69 transitions. Word has length 37 [2020-07-08 17:36:34,313 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-08 17:36:34,313 INFO L479 AbstractCegarLoop]: Abstraction has 66 states and 69 transitions. [2020-07-08 17:36:34,313 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-08 17:36:34,314 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 66 states and 69 transitions. [2020-07-08 17:36:34,422 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 69 edges. 69 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-08 17:36:34,422 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 69 transitions. [2020-07-08 17:36:34,425 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2020-07-08 17:36:34,426 INFO L414 BasicCegarLoop]: Found error trace [2020-07-08 17:36:34,426 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] [2020-07-08 17:36:34,426 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-07-08 17:36:34,427 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-08 17:36:34,427 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-08 17:36:34,427 INFO L82 PathProgramCache]: Analyzing trace with hash 1623654441, now seen corresponding path program 1 times [2020-07-08 17:36:34,427 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-08 17:36:34,428 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [690616427] [2020-07-08 17:36:34,428 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-08 17:36:34,451 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-07-08 17:36:34,452 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.NullPointerException at de.uni_freiburg.informatik.ultimate.lib.acceleratedinterpolation.AcceleratedInterpolation.generateMetaTrace(AcceleratedInterpolation.java:442) at de.uni_freiburg.informatik.ultimate.lib.acceleratedinterpolation.AcceleratedInterpolation.acceleratedInterpolationCore(AcceleratedInterpolation.java:277) 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) [2020-07-08 17:36:34,458 INFO L168 Benchmark]: Toolchain (without parser) took 3883.14 ms. Allocated memory was 139.5 MB in the beginning and 245.4 MB in the end (delta: 105.9 MB). Free memory was 104.2 MB in the beginning and 204.7 MB in the end (delta: -100.5 MB). Peak memory consumption was 5.4 MB. Max. memory is 7.1 GB. [2020-07-08 17:36:34,459 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 139.5 MB. Free memory was 122.9 MB in the beginning and 122.7 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-07-08 17:36:34,460 INFO L168 Benchmark]: CACSL2BoogieTranslator took 419.94 ms. Allocated memory was 139.5 MB in the beginning and 203.4 MB in the end (delta: 64.0 MB). Free memory was 103.9 MB in the beginning and 182.6 MB in the end (delta: -78.6 MB). Peak memory consumption was 24.8 MB. Max. memory is 7.1 GB. [2020-07-08 17:36:34,461 INFO L168 Benchmark]: Boogie Preprocessor took 55.97 ms. Allocated memory is still 203.4 MB. Free memory was 182.6 MB in the beginning and 180.2 MB in the end (delta: 2.3 MB). Peak memory consumption was 2.3 MB. Max. memory is 7.1 GB. [2020-07-08 17:36:34,461 INFO L168 Benchmark]: RCFGBuilder took 587.83 ms. Allocated memory is still 203.4 MB. Free memory was 180.2 MB in the beginning and 146.9 MB in the end (delta: 33.3 MB). Peak memory consumption was 33.3 MB. Max. memory is 7.1 GB. [2020-07-08 17:36:34,462 INFO L168 Benchmark]: TraceAbstraction took 2813.62 ms. Allocated memory was 203.4 MB in the beginning and 245.4 MB in the end (delta: 41.9 MB). Free memory was 146.9 MB in the beginning and 204.7 MB in the end (delta: -57.8 MB). There was no memory consumed. Max. memory is 7.1 GB. [2020-07-08 17:36:34,466 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 0.25 ms. Allocated memory is still 139.5 MB. Free memory was 122.9 MB in the beginning and 122.7 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 419.94 ms. Allocated memory was 139.5 MB in the beginning and 203.4 MB in the end (delta: 64.0 MB). Free memory was 103.9 MB in the beginning and 182.6 MB in the end (delta: -78.6 MB). Peak memory consumption was 24.8 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 55.97 ms. Allocated memory is still 203.4 MB. Free memory was 182.6 MB in the beginning and 180.2 MB in the end (delta: 2.3 MB). Peak memory consumption was 2.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 587.83 ms. Allocated memory is still 203.4 MB. Free memory was 180.2 MB in the beginning and 146.9 MB in the end (delta: 33.3 MB). Peak memory consumption was 33.3 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2813.62 ms. Allocated memory was 203.4 MB in the beginning and 245.4 MB in the end (delta: 41.9 MB). Free memory was 146.9 MB in the beginning and 204.7 MB in the end (delta: -57.8 MB). There was no memory consumed. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: NullPointerException: null de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: NullPointerException: null: de.uni_freiburg.informatik.ultimate.lib.acceleratedinterpolation.AcceleratedInterpolation.generateMetaTrace(AcceleratedInterpolation.java:442) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...