/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 0.1.25-267fbe0 [2020-07-18 00:50:26,203 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-18 00:50:26,206 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-18 00:50:26,224 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-18 00:50:26,224 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-18 00:50:26,226 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-18 00:50:26,228 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-18 00:50:26,238 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-18 00:50:26,242 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-18 00:50:26,244 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-18 00:50:26,246 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-18 00:50:26,249 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-18 00:50:26,249 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-18 00:50:26,251 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-18 00:50:26,252 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-18 00:50:26,254 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-18 00:50:26,254 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-18 00:50:26,255 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-18 00:50:26,256 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-18 00:50:26,261 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-18 00:50:26,265 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-18 00:50:26,269 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-18 00:50:26,270 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-18 00:50:26,271 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-18 00:50:26,273 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-07-18 00:50:26,282 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-18 00:50:26,283 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-18 00:50:26,284 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-18 00:50:26,285 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2020-07-18 00:50:26,315 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-18 00:50:26,315 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-18 00:50:26,317 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-18 00:50:26,317 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-18 00:50:26,318 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-18 00:50:26,318 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-18 00:50:26,318 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-18 00:50:26,318 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-18 00:50:26,318 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-18 00:50:26,319 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-18 00:50:26,319 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-18 00:50:26,319 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-18 00:50:26,319 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-18 00:50:26,319 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-18 00:50:26,319 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-18 00:50:26,320 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-07-18 00:50:26,320 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-18 00:50:26,320 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-18 00:50:26,323 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-18 00:50:26,324 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-18 00:50:26,324 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-07-18 00:50:26,324 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-18 00:50:26,324 INFO L138 SettingsManager]: * Use separate solver for trace checks=false [2020-07-18 00:50:26,618 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-18 00:50:26,631 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-18 00:50:26,634 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-18 00:50:26,636 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-18 00:50:26,636 INFO L275 PluginConnector]: CDTParser initialized [2020-07-18 00:50:26,637 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loops-crafted-1/sumt2.c [2020-07-18 00:50:26,709 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/eda34c6aa/9de49c4c1b2d49eb9cc041d5c43f148b/FLAGa5e5ed825 [2020-07-18 00:50:27,131 INFO L306 CDTParser]: Found 1 translation units. [2020-07-18 00:50:27,131 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loops-crafted-1/sumt2.c [2020-07-18 00:50:27,137 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/eda34c6aa/9de49c4c1b2d49eb9cc041d5c43f148b/FLAGa5e5ed825 [2020-07-18 00:50:27,550 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/eda34c6aa/9de49c4c1b2d49eb9cc041d5c43f148b [2020-07-18 00:50:27,558 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-18 00:50:27,560 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-18 00:50:27,564 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-18 00:50:27,564 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-18 00:50:27,568 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-18 00:50:27,570 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.07 12:50:27" (1/1) ... [2020-07-18 00:50:27,573 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1f91136a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.07 12:50:27, skipping insertion in model container [2020-07-18 00:50:27,573 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.07 12:50:27" (1/1) ... [2020-07-18 00:50:27,581 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-18 00:50:27,596 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-18 00:50:27,773 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-18 00:50:27,778 INFO L203 MainTranslator]: Completed pre-run [2020-07-18 00:50:27,795 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-18 00:50:27,806 INFO L208 MainTranslator]: Completed translation [2020-07-18 00:50:27,806 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.07 12:50:27 WrapperNode [2020-07-18 00:50:27,806 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-18 00:50:27,807 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-18 00:50:27,807 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-18 00:50:27,807 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-18 00:50:27,817 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.07 12:50:27" (1/1) ... [2020-07-18 00:50:27,817 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.07 12:50:27" (1/1) ... [2020-07-18 00:50:27,821 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.07 12:50:27" (1/1) ... [2020-07-18 00:50:27,821 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.07 12:50:27" (1/1) ... [2020-07-18 00:50:27,914 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.07 12:50:27" (1/1) ... [2020-07-18 00:50:27,919 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.07 12:50:27" (1/1) ... [2020-07-18 00:50:27,919 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.07 12:50:27" (1/1) ... [2020-07-18 00:50:27,921 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-18 00:50:27,921 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-18 00:50:27,922 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-18 00:50:27,922 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-18 00:50:27,923 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.07 12:50:27" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-18 00:50:27,985 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-18 00:50:27,985 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-18 00:50:27,985 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-07-18 00:50:27,985 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-07-18 00:50:27,985 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-18 00:50:27,985 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-18 00:50:27,986 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-07-18 00:50:27,986 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-07-18 00:50:27,986 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-07-18 00:50:27,986 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-18 00:50:27,986 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-18 00:50:27,986 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-18 00:50:27,986 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-18 00:50:28,264 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-18 00:50:28,265 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-07-18 00:50:28,268 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.07 12:50:28 BoogieIcfgContainer [2020-07-18 00:50:28,269 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-18 00:50:28,270 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-18 00:50:28,270 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-18 00:50:28,274 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-18 00:50:28,274 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.07 12:50:27" (1/3) ... [2020-07-18 00:50:28,275 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3875bf88 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.07 12:50:28, skipping insertion in model container [2020-07-18 00:50:28,275 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.07 12:50:27" (2/3) ... [2020-07-18 00:50:28,278 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3875bf88 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.07 12:50:28, skipping insertion in model container [2020-07-18 00:50:28,279 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.07 12:50:28" (3/3) ... [2020-07-18 00:50:28,283 INFO L109 eAbstractionObserver]: Analyzing ICFG sumt2.c [2020-07-18 00:50:28,298 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-07-18 00:50:28,305 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-18 00:50:28,320 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-18 00:50:28,341 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-18 00:50:28,341 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-18 00:50:28,342 INFO L377 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2020-07-18 00:50:28,342 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-18 00:50:28,342 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-18 00:50:28,342 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-18 00:50:28,342 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-18 00:50:28,342 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-18 00:50:28,360 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states. [2020-07-18 00:50:28,384 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-07-18 00:50:28,384 INFO L414 BasicCegarLoop]: Found error trace [2020-07-18 00:50:28,387 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] [2020-07-18 00:50:28,388 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-18 00:50:28,394 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-18 00:50:28,395 INFO L82 PathProgramCache]: Analyzing trace with hash 960346385, now seen corresponding path program 1 times [2020-07-18 00:50:28,402 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-18 00:50:28,403 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2046125269] [2020-07-18 00:50:28,404 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-18 00:50:28,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-18 00:50:28,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-18 00:50:28,622 INFO L280 TraceCheckUtils]: 0: Hoare triple {42#(= ~SIZE~0 |old(~SIZE~0)|)} ~SIZE~0 := 20000001; {37#true} is VALID [2020-07-18 00:50:28,623 INFO L280 TraceCheckUtils]: 1: Hoare triple {37#true} assume true; {37#true} is VALID [2020-07-18 00:50:28,623 INFO L275 TraceCheckUtils]: 2: Hoare quadruple {37#true} {37#true} #65#return; {37#true} is VALID [2020-07-18 00:50:28,626 INFO L263 TraceCheckUtils]: 0: Hoare triple {37#true} call ULTIMATE.init(); {42#(= ~SIZE~0 |old(~SIZE~0)|)} is VALID [2020-07-18 00:50:28,627 INFO L280 TraceCheckUtils]: 1: Hoare triple {42#(= ~SIZE~0 |old(~SIZE~0)|)} ~SIZE~0 := 20000001; {37#true} is VALID [2020-07-18 00:50:28,627 INFO L280 TraceCheckUtils]: 2: Hoare triple {37#true} assume true; {37#true} is VALID [2020-07-18 00:50:28,627 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {37#true} {37#true} #65#return; {37#true} is VALID [2020-07-18 00:50:28,628 INFO L263 TraceCheckUtils]: 4: Hoare triple {37#true} call #t~ret1 := main(); {37#true} is VALID [2020-07-18 00:50:28,628 INFO L280 TraceCheckUtils]: 5: Hoare triple {37#true} havoc ~n~0; {37#true} is VALID [2020-07-18 00:50:28,628 INFO L280 TraceCheckUtils]: 6: Hoare triple {37#true} havoc ~i~0; {37#true} is VALID [2020-07-18 00:50:28,629 INFO L280 TraceCheckUtils]: 7: Hoare triple {37#true} havoc ~j~0; {37#true} is VALID [2020-07-18 00:50:28,629 INFO L280 TraceCheckUtils]: 8: Hoare triple {37#true} ~l~0 := 0; {37#true} is VALID [2020-07-18 00:50:28,630 INFO L280 TraceCheckUtils]: 9: Hoare triple {37#true} assume -2147483648 <= #t~nondet0 && #t~nondet0 <= 2147483647; {37#true} is VALID [2020-07-18 00:50:28,630 INFO L280 TraceCheckUtils]: 10: Hoare triple {37#true} ~n~0 := #t~nondet0; {37#true} is VALID [2020-07-18 00:50:28,630 INFO L280 TraceCheckUtils]: 11: Hoare triple {37#true} havoc #t~nondet0; {37#true} is VALID [2020-07-18 00:50:28,631 INFO L280 TraceCheckUtils]: 12: Hoare triple {37#true} assume !!(~n~0 % 4294967296 <= ~SIZE~0 % 4294967296); {37#true} is VALID [2020-07-18 00:50:28,631 INFO L280 TraceCheckUtils]: 13: Hoare triple {37#true} ~i~0 := 0; {37#true} is VALID [2020-07-18 00:50:28,632 INFO L280 TraceCheckUtils]: 14: Hoare triple {37#true} ~j~0 := 0; {37#true} is VALID [2020-07-18 00:50:28,632 INFO L280 TraceCheckUtils]: 15: Hoare triple {37#true} ~l~0 := 0; {37#true} is VALID [2020-07-18 00:50:28,633 INFO L280 TraceCheckUtils]: 16: Hoare triple {37#true} assume !true; {38#false} is VALID [2020-07-18 00:50:28,634 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 [2020-07-18 00:50:28,634 INFO L280 TraceCheckUtils]: 18: Hoare triple {38#false} ~cond := #in~cond; {38#false} is VALID [2020-07-18 00:50:28,635 INFO L280 TraceCheckUtils]: 19: Hoare triple {38#false} assume 0 == ~cond; {38#false} is VALID [2020-07-18 00:50:28,635 INFO L280 TraceCheckUtils]: 20: Hoare triple {38#false} assume !false; {38#false} is VALID [2020-07-18 00:50:28,638 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-18 00:50:28,640 INFO L192 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-18 00:50:28,642 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2046125269] [2020-07-18 00:50:28,644 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-18 00:50:28,644 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-18 00:50:28,645 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [254517017] [2020-07-18 00:50:28,651 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 21 [2020-07-18 00:50:28,654 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-18 00:50:28,658 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states. [2020-07-18 00:50:28,709 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 21 edges. 21 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-18 00:50:28,709 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-18 00:50:28,710 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-18 00:50:28,719 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-18 00:50:28,720 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-18 00:50:28,722 INFO L87 Difference]: Start difference. First operand 34 states. Second operand 3 states. [2020-07-18 00:50:28,913 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-18 00:50:28,913 INFO L93 Difference]: Finished difference Result 46 states and 51 transitions. [2020-07-18 00:50:28,913 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-18 00:50:28,914 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 21 [2020-07-18 00:50:28,914 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-18 00:50:28,916 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-18 00:50:28,926 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 51 transitions. [2020-07-18 00:50:28,926 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-18 00:50:28,931 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 51 transitions. [2020-07-18 00:50:28,931 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states and 51 transitions. [2020-07-18 00:50:29,010 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 51 edges. 51 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-18 00:50:29,022 INFO L225 Difference]: With dead ends: 46 [2020-07-18 00:50:29,023 INFO L226 Difference]: Without dead ends: 26 [2020-07-18 00:50:29,026 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-18 00:50:29,045 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2020-07-18 00:50:29,098 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 26. [2020-07-18 00:50:29,098 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-18 00:50:29,099 INFO L82 GeneralOperation]: Start isEquivalent. First operand 26 states. Second operand 26 states. [2020-07-18 00:50:29,099 INFO L74 IsIncluded]: Start isIncluded. First operand 26 states. Second operand 26 states. [2020-07-18 00:50:29,100 INFO L87 Difference]: Start difference. First operand 26 states. Second operand 26 states. [2020-07-18 00:50:29,104 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-18 00:50:29,104 INFO L93 Difference]: Finished difference Result 26 states and 27 transitions. [2020-07-18 00:50:29,105 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 27 transitions. [2020-07-18 00:50:29,105 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-18 00:50:29,106 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-18 00:50:29,106 INFO L74 IsIncluded]: Start isIncluded. First operand 26 states. Second operand 26 states. [2020-07-18 00:50:29,106 INFO L87 Difference]: Start difference. First operand 26 states. Second operand 26 states. [2020-07-18 00:50:29,110 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-18 00:50:29,110 INFO L93 Difference]: Finished difference Result 26 states and 27 transitions. [2020-07-18 00:50:29,111 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 27 transitions. [2020-07-18 00:50:29,111 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-18 00:50:29,112 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-18 00:50:29,112 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-18 00:50:29,112 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-18 00:50:29,113 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26 states. [2020-07-18 00:50:29,115 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 27 transitions. [2020-07-18 00:50:29,117 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 27 transitions. Word has length 21 [2020-07-18 00:50:29,117 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-18 00:50:29,117 INFO L479 AbstractCegarLoop]: Abstraction has 26 states and 27 transitions. [2020-07-18 00:50:29,118 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-18 00:50:29,118 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 26 states and 27 transitions. [2020-07-18 00:50:29,162 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 27 edges. 27 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-18 00:50:29,163 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 27 transitions. [2020-07-18 00:50:29,163 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-07-18 00:50:29,164 INFO L414 BasicCegarLoop]: Found error trace [2020-07-18 00:50:29,164 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] [2020-07-18 00:50:29,164 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-07-18 00:50:29,165 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-18 00:50:29,165 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-18 00:50:29,165 INFO L82 PathProgramCache]: Analyzing trace with hash 948340612, now seen corresponding path program 1 times [2020-07-18 00:50:29,166 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-18 00:50:29,166 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1963559678] [2020-07-18 00:50:29,166 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-18 00:50:29,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-18 00:50:29,233 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-07-18 00:50:29,234 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:797) at de.uni_freiburg.informatik.ultimate.logic.NoopScript.getInterpolants(NoopScript.java:392) at de.uni_freiburg.informatik.ultimate.logic.NoopScript.getInterpolants(NoopScript.java:386) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.getInterpolants(WrapperScript.java:337) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.getInterpolants(WrapperScript.java:337) 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:283) at de.uni_freiburg.informatik.ultimate.lib.acceleratedinterpolation.AcceleratedInterpolation.(AcceleratedInterpolation.java:191) 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$Toolchain.processToolchain(ToolchainManager.java:317) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) [2020-07-18 00:50:29,239 INFO L168 Benchmark]: Toolchain (without parser) took 1679.33 ms. Allocated memory was 138.9 MB in the beginning and 235.4 MB in the end (delta: 96.5 MB). Free memory was 104.5 MB in the beginning and 206.1 MB in the end (delta: -101.6 MB). There was no memory consumed. Max. memory is 7.1 GB. [2020-07-18 00:50:29,240 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 138.9 MB. Free memory was 122.3 MB in the beginning and 122.1 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. [2020-07-18 00:50:29,241 INFO L168 Benchmark]: CACSL2BoogieTranslator took 242.99 ms. Allocated memory is still 138.9 MB. Free memory was 104.1 MB in the beginning and 93.9 MB in the end (delta: 10.2 MB). Peak memory consumption was 10.2 MB. Max. memory is 7.1 GB. [2020-07-18 00:50:29,242 INFO L168 Benchmark]: Boogie Preprocessor took 114.00 ms. Allocated memory was 138.9 MB in the beginning and 202.9 MB in the end (delta: 64.0 MB). Free memory was 93.9 MB in the beginning and 182.1 MB in the end (delta: -88.2 MB). Peak memory consumption was 15.0 MB. Max. memory is 7.1 GB. [2020-07-18 00:50:29,243 INFO L168 Benchmark]: RCFGBuilder took 347.41 ms. Allocated memory is still 202.9 MB. Free memory was 182.1 MB in the beginning and 162.3 MB in the end (delta: 19.8 MB). Peak memory consumption was 19.8 MB. Max. memory is 7.1 GB. [2020-07-18 00:50:29,244 INFO L168 Benchmark]: TraceAbstraction took 966.42 ms. Allocated memory was 202.9 MB in the beginning and 235.4 MB in the end (delta: 32.5 MB). Free memory was 161.7 MB in the beginning and 206.1 MB in the end (delta: -44.5 MB). There was no memory consumed. Max. memory is 7.1 GB. [2020-07-18 00:50:29,248 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - AssertionsEnabledResult: Assertions are enabled Assertions are enabled - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 138.9 MB. Free memory was 122.3 MB in the beginning and 122.1 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 242.99 ms. Allocated memory is still 138.9 MB. Free memory was 104.1 MB in the beginning and 93.9 MB in the end (delta: 10.2 MB). Peak memory consumption was 10.2 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 114.00 ms. Allocated memory was 138.9 MB in the beginning and 202.9 MB in the end (delta: 64.0 MB). Free memory was 93.9 MB in the beginning and 182.1 MB in the end (delta: -88.2 MB). Peak memory consumption was 15.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 347.41 ms. Allocated memory is still 202.9 MB. Free memory was 182.1 MB in the beginning and 162.3 MB in the end (delta: 19.8 MB). Peak memory consumption was 19.8 MB. Max. memory is 7.1 GB. * TraceAbstraction took 966.42 ms. Allocated memory was 202.9 MB in the beginning and 235.4 MB in the end (delta: 32.5 MB). Free memory was 161.7 MB in the beginning and 206.1 MB in the end (delta: -44.5 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...