/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/loops-crafted-1/sumt2.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-46f3038-m [2020-07-08 17:40:43,036 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-08 17:40:43,038 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-08 17:40:43,058 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-08 17:40:43,058 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-08 17:40:43,059 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-08 17:40:43,061 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-08 17:40:43,063 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-08 17:40:43,064 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-08 17:40:43,065 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-08 17:40:43,066 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-08 17:40:43,067 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-08 17:40:43,068 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-08 17:40:43,069 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-08 17:40:43,070 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-08 17:40:43,071 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-08 17:40:43,072 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-08 17:40:43,073 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-08 17:40:43,074 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-08 17:40:43,076 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-08 17:40:43,078 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-08 17:40:43,079 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-08 17:40:43,080 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-08 17:40:43,081 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-08 17:40:43,084 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-08 17:40:43,084 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-08 17:40:43,084 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-08 17:40:43,085 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-08 17:40:43,086 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-08 17:40:43,087 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-08 17:40:43,087 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-08 17:40:43,088 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-08 17:40:43,088 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-08 17:40:43,089 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-08 17:40:43,090 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-08 17:40:43,090 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-08 17:40:43,091 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-08 17:40:43,091 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-08 17:40:43,092 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-08 17:40:43,092 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-08 17:40:43,093 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-08 17:40:43,094 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 17:40:43,112 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-08 17:40:43,112 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-08 17:40:43,114 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-08 17:40:43,114 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-08 17:40:43,115 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-08 17:40:43,115 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-08 17:40:43,115 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-08 17:40:43,115 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-08 17:40:43,115 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-08 17:40:43,116 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-08 17:40:43,117 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-08 17:40:43,117 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-08 17:40:43,118 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-08 17:40:43,118 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-08 17:40:43,118 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-08 17:40:43,119 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-07-08 17:40:43,119 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-08 17:40:43,119 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-08 17:40:43,119 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-08 17:40:43,119 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-08 17:40:43,120 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-07-08 17:40:43,121 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-08 17:40:43,121 INFO L138 SettingsManager]: * Use separate solver for trace checks=false [2020-07-08 17:40:43,418 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-08 17:40:43,429 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-08 17:40:43,432 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-08 17:40:43,434 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-08 17:40:43,434 INFO L275 PluginConnector]: CDTParser initialized [2020-07-08 17:40:43,435 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loops-crafted-1/sumt2.c [2020-07-08 17:40:43,511 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/883dc409c/26448c206b19400492388160ea64a170/FLAG635983e74 [2020-07-08 17:40:44,011 INFO L306 CDTParser]: Found 1 translation units. [2020-07-08 17:40:44,012 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loops-crafted-1/sumt2.c [2020-07-08 17:40:44,018 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/883dc409c/26448c206b19400492388160ea64a170/FLAG635983e74 [2020-07-08 17:40:44,337 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/883dc409c/26448c206b19400492388160ea64a170 [2020-07-08 17:40:44,346 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-08 17:40:44,347 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-08 17:40:44,348 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-08 17:40:44,349 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-08 17:40:44,352 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-08 17:40:44,354 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.07 05:40:44" (1/1) ... [2020-07-08 17:40:44,356 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@701095fb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.07 05:40:44, skipping insertion in model container [2020-07-08 17:40:44,357 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.07 05:40:44" (1/1) ... [2020-07-08 17:40:44,364 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-08 17:40:44,381 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-08 17:40:44,566 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-08 17:40:44,575 INFO L203 MainTranslator]: Completed pre-run [2020-07-08 17:40:44,597 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-08 17:40:44,612 INFO L208 MainTranslator]: Completed translation [2020-07-08 17:40:44,613 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.07 05:40:44 WrapperNode [2020-07-08 17:40:44,613 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-08 17:40:44,614 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-08 17:40:44,614 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-08 17:40:44,614 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-08 17:40:44,627 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.07 05:40:44" (1/1) ... [2020-07-08 17:40:44,628 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.07 05:40:44" (1/1) ... [2020-07-08 17:40:44,633 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.07 05:40:44" (1/1) ... [2020-07-08 17:40:44,633 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.07 05:40:44" (1/1) ... [2020-07-08 17:40:44,639 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.07 05:40:44" (1/1) ... [2020-07-08 17:40:44,644 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.07 05:40:44" (1/1) ... [2020-07-08 17:40:44,645 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.07 05:40:44" (1/1) ... [2020-07-08 17:40:44,738 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-08 17:40:44,739 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-08 17:40:44,739 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-08 17:40:44,739 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-08 17:40:44,740 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.07 05:40:44" (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 17:40:44,797 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-08 17:40:44,798 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-08 17:40:44,798 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-07-08 17:40:44,798 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-07-08 17:40:44,798 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-08 17:40:44,798 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-08 17:40:44,799 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-07-08 17:40:44,799 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-07-08 17:40:44,799 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-07-08 17:40:44,799 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-08 17:40:44,799 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-08 17:40:44,799 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-08 17:40:44,800 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-08 17:40:45,087 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-08 17:40:45,088 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-07-08 17:40:45,092 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.07 05:40:45 BoogieIcfgContainer [2020-07-08 17:40:45,093 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-08 17:40:45,094 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-08 17:40:45,094 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-08 17:40:45,098 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-08 17:40:45,098 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.07 05:40:44" (1/3) ... [2020-07-08 17:40:45,099 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@57c4ae84 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.07 05:40:45, skipping insertion in model container [2020-07-08 17:40:45,099 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.07 05:40:44" (2/3) ... [2020-07-08 17:40:45,100 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@57c4ae84 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.07 05:40:45, skipping insertion in model container [2020-07-08 17:40:45,100 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.07 05:40:45" (3/3) ... [2020-07-08 17:40:45,102 INFO L109 eAbstractionObserver]: Analyzing ICFG sumt2.c [2020-07-08 17:40:45,117 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-07-08 17:40:45,130 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-08 17:40:45,156 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-08 17:40:45,185 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-08 17:40:45,185 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-08 17:40:45,185 INFO L377 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2020-07-08 17:40:45,185 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-08 17:40:45,185 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-08 17:40:45,186 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-08 17:40:45,186 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-08 17:40:45,186 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-08 17:40:45,201 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states. [2020-07-08 17:40:45,211 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-07-08 17:40:45,212 INFO L414 BasicCegarLoop]: Found error trace [2020-07-08 17:40:45,213 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] [2020-07-08 17:40:45,213 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-08 17:40:45,219 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-08 17:40:45,220 INFO L82 PathProgramCache]: Analyzing trace with hash 960346385, now seen corresponding path program 1 times [2020-07-08 17:40:45,227 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-08 17:40:45,227 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1805632054] [2020-07-08 17:40:45,227 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-08 17:40:45,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 17:40:45,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 17:40:45,412 INFO L280 TraceCheckUtils]: 0: Hoare triple {42#(= ~SIZE~0 |old(~SIZE~0)|)} ~SIZE~0 := 20000001; {37#true} is VALID [2020-07-08 17:40:45,413 INFO L280 TraceCheckUtils]: 1: Hoare triple {37#true} assume true; {37#true} is VALID [2020-07-08 17:40:45,414 INFO L275 TraceCheckUtils]: 2: Hoare quadruple {37#true} {37#true} #65#return; {37#true} is VALID [2020-07-08 17:40:45,418 INFO L263 TraceCheckUtils]: 0: Hoare triple {37#true} call ULTIMATE.init(); {42#(= ~SIZE~0 |old(~SIZE~0)|)} is VALID [2020-07-08 17:40:45,418 INFO L280 TraceCheckUtils]: 1: Hoare triple {42#(= ~SIZE~0 |old(~SIZE~0)|)} ~SIZE~0 := 20000001; {37#true} is VALID [2020-07-08 17:40:45,418 INFO L280 TraceCheckUtils]: 2: Hoare triple {37#true} assume true; {37#true} is VALID [2020-07-08 17:40:45,419 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {37#true} {37#true} #65#return; {37#true} is VALID [2020-07-08 17:40:45,419 INFO L263 TraceCheckUtils]: 4: Hoare triple {37#true} call #t~ret1 := main(); {37#true} is VALID [2020-07-08 17:40:45,420 INFO L280 TraceCheckUtils]: 5: Hoare triple {37#true} havoc ~n~0; {37#true} is VALID [2020-07-08 17:40:45,420 INFO L280 TraceCheckUtils]: 6: Hoare triple {37#true} havoc ~i~0; {37#true} is VALID [2020-07-08 17:40:45,420 INFO L280 TraceCheckUtils]: 7: Hoare triple {37#true} havoc ~j~0; {37#true} is VALID [2020-07-08 17:40:45,421 INFO L280 TraceCheckUtils]: 8: Hoare triple {37#true} ~l~0 := 0; {37#true} is VALID [2020-07-08 17:40:45,421 INFO L280 TraceCheckUtils]: 9: Hoare triple {37#true} assume -2147483648 <= #t~nondet0 && #t~nondet0 <= 2147483647; {37#true} is VALID [2020-07-08 17:40:45,422 INFO L280 TraceCheckUtils]: 10: Hoare triple {37#true} ~n~0 := #t~nondet0; {37#true} is VALID [2020-07-08 17:40:45,422 INFO L280 TraceCheckUtils]: 11: Hoare triple {37#true} havoc #t~nondet0; {37#true} is VALID [2020-07-08 17:40:45,423 INFO L280 TraceCheckUtils]: 12: Hoare triple {37#true} assume !!(~n~0 % 4294967296 <= ~SIZE~0 % 4294967296); {37#true} is VALID [2020-07-08 17:40:45,423 INFO L280 TraceCheckUtils]: 13: Hoare triple {37#true} ~i~0 := 0; {37#true} is VALID [2020-07-08 17:40:45,424 INFO L280 TraceCheckUtils]: 14: Hoare triple {37#true} ~j~0 := 0; {37#true} is VALID [2020-07-08 17:40:45,424 INFO L280 TraceCheckUtils]: 15: Hoare triple {37#true} ~l~0 := 0; {37#true} is VALID [2020-07-08 17:40:45,426 INFO L280 TraceCheckUtils]: 16: Hoare triple {37#true} assume !true; {38#false} is VALID [2020-07-08 17:40:45,426 INFO L263 TraceCheckUtils]: 17: Hoare triple {38#false} call __VERIFIER_assert((if (~i~0 + ~j~0) % 4294967296 == ~l~0 % 4294967296 then 1 else 0)); {38#false} is VALID [2020-07-08 17:40:45,427 INFO L280 TraceCheckUtils]: 18: Hoare triple {38#false} ~cond := #in~cond; {38#false} is VALID [2020-07-08 17:40:45,427 INFO L280 TraceCheckUtils]: 19: Hoare triple {38#false} assume 0 == ~cond; {38#false} is VALID [2020-07-08 17:40:45,428 INFO L280 TraceCheckUtils]: 20: Hoare triple {38#false} assume !false; {38#false} is VALID [2020-07-08 17:40:45,431 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 17:40:45,431 INFO L185 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-08 17:40:45,434 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1805632054] [2020-07-08 17:40:45,436 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-08 17:40:45,436 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-08 17:40:45,437 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [194486627] [2020-07-08 17:40:45,444 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 21 [2020-07-08 17:40:45,449 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-08 17:40:45,454 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states. [2020-07-08 17:40:45,536 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 21 edges. 21 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-08 17:40:45,536 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-08 17:40:45,537 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-08 17:40:45,548 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-08 17:40:45,550 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-08 17:40:45,552 INFO L87 Difference]: Start difference. First operand 34 states. Second operand 3 states. [2020-07-08 17:40:45,736 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-08 17:40:45,737 INFO L93 Difference]: Finished difference Result 46 states and 51 transitions. [2020-07-08 17:40:45,737 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-08 17:40:45,737 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 21 [2020-07-08 17:40:45,738 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-08 17:40:45,739 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-08 17:40:45,750 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 51 transitions. [2020-07-08 17:40:45,750 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-08 17:40:45,755 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 51 transitions. [2020-07-08 17:40:45,755 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states and 51 transitions. [2020-07-08 17:40:45,837 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 51 edges. 51 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-08 17:40:45,850 INFO L225 Difference]: With dead ends: 46 [2020-07-08 17:40:45,850 INFO L226 Difference]: Without dead ends: 26 [2020-07-08 17:40:45,854 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 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 17:40:45,873 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2020-07-08 17:40:45,936 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 26. [2020-07-08 17:40:45,937 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-08 17:40:45,938 INFO L82 GeneralOperation]: Start isEquivalent. First operand 26 states. Second operand 26 states. [2020-07-08 17:40:45,938 INFO L74 IsIncluded]: Start isIncluded. First operand 26 states. Second operand 26 states. [2020-07-08 17:40:45,939 INFO L87 Difference]: Start difference. First operand 26 states. Second operand 26 states. [2020-07-08 17:40:45,943 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-08 17:40:45,943 INFO L93 Difference]: Finished difference Result 26 states and 27 transitions. [2020-07-08 17:40:45,944 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 27 transitions. [2020-07-08 17:40:45,944 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-08 17:40:45,945 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-08 17:40:45,945 INFO L74 IsIncluded]: Start isIncluded. First operand 26 states. Second operand 26 states. [2020-07-08 17:40:45,945 INFO L87 Difference]: Start difference. First operand 26 states. Second operand 26 states. [2020-07-08 17:40:45,950 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-08 17:40:45,950 INFO L93 Difference]: Finished difference Result 26 states and 27 transitions. [2020-07-08 17:40:45,950 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 27 transitions. [2020-07-08 17:40:45,951 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-08 17:40:45,951 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-08 17:40:45,951 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-08 17:40:45,952 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-08 17:40:45,952 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26 states. [2020-07-08 17:40:45,955 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 27 transitions. [2020-07-08 17:40:45,957 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 27 transitions. Word has length 21 [2020-07-08 17:40:45,957 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-08 17:40:45,957 INFO L479 AbstractCegarLoop]: Abstraction has 26 states and 27 transitions. [2020-07-08 17:40:45,958 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-08 17:40:45,958 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 26 states and 27 transitions. [2020-07-08 17:40:46,002 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 27 edges. 27 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-08 17:40:46,002 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 27 transitions. [2020-07-08 17:40:46,003 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-07-08 17:40:46,004 INFO L414 BasicCegarLoop]: Found error trace [2020-07-08 17:40:46,004 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] [2020-07-08 17:40:46,004 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-07-08 17:40:46,005 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-08 17:40:46,005 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-08 17:40:46,005 INFO L82 PathProgramCache]: Analyzing trace with hash 948340612, now seen corresponding path program 1 times [2020-07-08 17:40:46,014 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-08 17:40:46,015 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [943092594] [2020-07-08 17:40:46,015 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-08 17:40:46,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 17:40:46,069 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-07-08 17:40:46,070 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.AssertionError at de.uni_freiburg.informatik.ultimate.smtinterpol.proof.FixResolutionProof.fix(FixResolutionProof.java:191) at de.uni_freiburg.informatik.ultimate.smtinterpol.proof.ProofTermGenerator.convert(ProofTermGenerator.java:150) at de.uni_freiburg.informatik.ultimate.smtinterpol.smtlib2.SMTInterpol.getProof(SMTInterpol.java:799) at de.uni_freiburg.informatik.ultimate.smtinterpol.smtlib2.SMTInterpol.getInterpolants(SMTInterpol.java:883) at de.uni_freiburg.informatik.ultimate.logic.NoopScript.getInterpolants(NoopScript.java:385) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.getInterpolants(WrapperScript.java:332) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.getInterpolants(WrapperScript.java:332) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.ManagedScript.getInterpolants(ManagedScript.java:191) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.NestedInterpolantsBuilder.computeCraigInterpolants(NestedInterpolantsBuilder.java:285) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.NestedInterpolantsBuilder.(NestedInterpolantsBuilder.java:166) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.InterpolatingTraceCheckCraig.computeInterpolantsRecursive(InterpolatingTraceCheckCraig.java:337) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.InterpolatingTraceCheckCraig.computeInterpolants(InterpolatingTraceCheckCraig.java:239) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.InterpolatingTraceCheckCraig.(InterpolatingTraceCheckCraig.java:108) at de.uni_freiburg.informatik.ultimate.lib.acceleratedinterpolation.Interpolator.generateInterpolantsCraigNested(Interpolator.java:146) at de.uni_freiburg.informatik.ultimate.lib.acceleratedinterpolation.Interpolator.generateInterpolants(Interpolator.java:102) at de.uni_freiburg.informatik.ultimate.lib.acceleratedinterpolation.AcceleratedInterpolation.acceleratedInterpolationCore(AcceleratedInterpolation.java:266) at de.uni_freiburg.informatik.ultimate.lib.acceleratedinterpolation.AcceleratedInterpolation.(AcceleratedInterpolation.java:184) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModulePreferences.construct(IpTcStrategyModulePreferences.java:144) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.isCorrect(IpTcStrategyModuleBase.java:57) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.checkFeasibility(AutomatonFreeRefinementEngine.java:242) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:166) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:75) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:508) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:436) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:370) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopResult.iterate(CegarLoopResult.java:142) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.iterateNew(TraceAbstractionStarter.java:334) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:175) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:127) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:120) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:317) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) [2020-07-08 17:40:46,079 INFO L168 Benchmark]: Toolchain (without parser) took 1731.08 ms. Allocated memory was 139.5 MB in the beginning and 233.8 MB in the end (delta: 94.4 MB). Free memory was 104.2 MB in the beginning and 203.6 MB in the end (delta: -99.4 MB). There was no memory consumed. Max. memory is 7.1 GB. [2020-07-08 17:40:46,080 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 139.5 MB. Free memory was 121.6 MB in the beginning and 121.4 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. [2020-07-08 17:40:46,080 INFO L168 Benchmark]: CACSL2BoogieTranslator took 265.05 ms. Allocated memory is still 139.5 MB. Free memory was 104.0 MB in the beginning and 93.6 MB in the end (delta: 10.4 MB). Peak memory consumption was 10.4 MB. Max. memory is 7.1 GB. [2020-07-08 17:40:46,081 INFO L168 Benchmark]: Boogie Preprocessor took 124.52 ms. Allocated memory was 139.5 MB in the beginning and 203.9 MB in the end (delta: 64.5 MB). Free memory was 93.6 MB in the beginning and 184.1 MB in the end (delta: -90.5 MB). Peak memory consumption was 15.5 MB. Max. memory is 7.1 GB. [2020-07-08 17:40:46,083 INFO L168 Benchmark]: RCFGBuilder took 354.11 ms. Allocated memory is still 203.9 MB. Free memory was 184.1 MB in the beginning and 163.5 MB in the end (delta: 20.6 MB). Peak memory consumption was 20.6 MB. Max. memory is 7.1 GB. [2020-07-08 17:40:46,083 INFO L168 Benchmark]: TraceAbstraction took 980.08 ms. Allocated memory was 203.9 MB in the beginning and 233.8 MB in the end (delta: 29.9 MB). Free memory was 163.5 MB in the beginning and 203.6 MB in the end (delta: -40.1 MB). There was no memory consumed. Max. memory is 7.1 GB. [2020-07-08 17:40:46,088 INFO L336 ainManager$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 0.19 ms. Allocated memory is still 139.5 MB. Free memory was 121.6 MB in the beginning and 121.4 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 265.05 ms. Allocated memory is still 139.5 MB. Free memory was 104.0 MB in the beginning and 93.6 MB in the end (delta: 10.4 MB). Peak memory consumption was 10.4 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 124.52 ms. Allocated memory was 139.5 MB in the beginning and 203.9 MB in the end (delta: 64.5 MB). Free memory was 93.6 MB in the beginning and 184.1 MB in the end (delta: -90.5 MB). Peak memory consumption was 15.5 MB. Max. memory is 7.1 GB. * RCFGBuilder took 354.11 ms. Allocated memory is still 203.9 MB. Free memory was 184.1 MB in the beginning and 163.5 MB in the end (delta: 20.6 MB). Peak memory consumption was 20.6 MB. Max. memory is 7.1 GB. * TraceAbstraction took 980.08 ms. Allocated memory was 203.9 MB in the beginning and 233.8 MB in the end (delta: 29.9 MB). Free memory was 163.5 MB in the beginning and 203.6 MB in the end (delta: -40.1 MB). There was no memory consumed. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: AssertionError: null de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: AssertionError: null: de.uni_freiburg.informatik.ultimate.smtinterpol.proof.FixResolutionProof.fix(FixResolutionProof.java:191) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...