/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SingleStatement --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=NARROWEST --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/array-fpi/ss1f.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 02:18:45,443 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 02:18:45,448 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 02:18:45,491 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 02:18:45,492 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 02:18:45,503 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 02:18:45,506 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 02:18:45,510 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 02:18:45,513 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 02:18:45,517 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 02:18:45,518 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 02:18:45,519 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 02:18:45,520 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 02:18:45,523 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 02:18:45,526 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 02:18:45,528 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 02:18:45,530 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 02:18:45,531 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 02:18:45,533 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 02:18:45,541 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 02:18:45,544 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 02:18:45,545 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 02:18:45,546 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 02:18:45,547 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 02:18:45,550 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 02:18:45,550 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 02:18:45,551 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 02:18:45,554 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 02:18:45,554 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 02:18:45,555 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 02:18:45,555 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 02:18:45,556 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 02:18:45,557 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 02:18:45,558 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 02:18:45,559 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 02:18:45,560 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 02:18:45,561 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 02:18:45,561 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 02:18:45,561 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 02:18:45,562 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 02:18:45,564 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 02:18:45,565 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-09-25 02:18:45,610 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 02:18:45,611 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 02:18:45,613 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 02:18:45,613 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 02:18:45,614 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 02:18:45,614 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 02:18:45,614 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 02:18:45,615 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 02:18:45,615 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 02:18:45,615 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 02:18:45,616 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 02:18:45,616 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 02:18:45,617 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 02:18:45,617 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 02:18:45,617 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 02:18:45,617 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 02:18:45,618 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 02:18:45,618 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 02:18:45,618 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 02:18:45,618 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 02:18:45,618 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 02:18:45,619 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 02:18:45,619 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 02:18:45,619 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 02:18:45,619 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 02:18:45,619 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 02:18:45,620 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 02:18:45,620 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 02:18:45,620 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 02:18:45,620 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SingleStatement Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=NARROWEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=NARROWEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=NARROWEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=NARROWEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=NARROWEST;log-additional-information=true; [2020-09-25 02:18:46,080 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 02:18:46,098 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 02:18:46,102 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 02:18:46,104 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 02:18:46,105 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 02:18:46,106 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/array-fpi/ss1f.c [2020-09-25 02:18:46,189 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/5b2b59242/ef00d22479664ef8bd0260b36fabf09c/FLAG777f9df9f [2020-09-25 02:18:46,709 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 02:18:46,710 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/array-fpi/ss1f.c [2020-09-25 02:18:46,717 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/5b2b59242/ef00d22479664ef8bd0260b36fabf09c/FLAG777f9df9f [2020-09-25 02:18:47,023 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/5b2b59242/ef00d22479664ef8bd0260b36fabf09c [2020-09-25 02:18:47,036 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 02:18:47,042 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 02:18:47,043 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 02:18:47,043 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 02:18:47,048 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 02:18:47,049 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 02:18:47" (1/1) ... [2020-09-25 02:18:47,054 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@36687376 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:18:47, skipping insertion in model container [2020-09-25 02:18:47,054 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 02:18:47" (1/1) ... [2020-09-25 02:18:47,063 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 02:18:47,090 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 02:18:47,329 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 02:18:47,341 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 02:18:47,367 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 02:18:47,388 INFO L208 MainTranslator]: Completed translation [2020-09-25 02:18:47,388 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:18:47 WrapperNode [2020-09-25 02:18:47,389 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 02:18:47,389 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 02:18:47,390 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 02:18:47,390 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 02:18:47,506 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:18:47" (1/1) ... [2020-09-25 02:18:47,507 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:18:47" (1/1) ... [2020-09-25 02:18:47,516 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:18:47" (1/1) ... [2020-09-25 02:18:47,517 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:18:47" (1/1) ... [2020-09-25 02:18:47,527 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:18:47" (1/1) ... [2020-09-25 02:18:47,534 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:18:47" (1/1) ... [2020-09-25 02:18:47,536 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:18:47" (1/1) ... [2020-09-25 02:18:47,539 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 02:18:47,539 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 02:18:47,539 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 02:18:47,540 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 02:18:47,541 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:18:47" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/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 [2020-09-25 02:18:47,634 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 02:18:47,634 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 02:18:47,634 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-09-25 02:18:47,634 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-09-25 02:18:47,634 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 02:18:47,635 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 02:18:47,635 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-09-25 02:18:47,635 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-09-25 02:18:47,636 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-09-25 02:18:47,636 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 02:18:47,636 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-25 02:18:47,637 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 02:18:47,637 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-25 02:18:47,637 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-25 02:18:47,637 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-25 02:18:47,637 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-25 02:18:47,637 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-25 02:18:47,638 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 02:18:47,638 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 02:18:48,033 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 02:18:48,034 INFO L295 CfgBuilder]: Removed 4 assume(true) statements. [2020-09-25 02:18:48,043 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 02:18:48 BoogieIcfgContainer [2020-09-25 02:18:48,043 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 02:18:48,044 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 02:18:48,045 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 02:18:48,049 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 02:18:48,049 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 02:18:47" (1/3) ... [2020-09-25 02:18:48,051 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@90d8c96 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 02:18:48, skipping insertion in model container [2020-09-25 02:18:48,052 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:18:47" (2/3) ... [2020-09-25 02:18:48,053 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@90d8c96 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 02:18:48, skipping insertion in model container [2020-09-25 02:18:48,053 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 02:18:48" (3/3) ... [2020-09-25 02:18:48,055 INFO L109 eAbstractionObserver]: Analyzing ICFG ss1f.c [2020-09-25 02:18:48,068 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 02:18:48,080 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 02:18:48,100 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 02:18:48,129 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 02:18:48,129 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 02:18:48,129 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 02:18:48,129 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 02:18:48,129 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 02:18:48,130 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 02:18:48,130 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 02:18:48,130 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 02:18:48,152 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states. [2020-09-25 02:18:48,161 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2020-09-25 02:18:48,161 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 02:18:48,162 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 02:18:48,163 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 02:18:48,169 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 02:18:48,170 INFO L82 PathProgramCache]: Analyzing trace with hash 441507982, now seen corresponding path program 1 times [2020-09-25 02:18:48,178 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 02:18:48,179 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1362493022] [2020-09-25 02:18:48,179 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 02:18:48,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:18:48,359 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:18:48,421 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:18:48,474 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:18:48,594 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:18:48,620 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1362493022] [2020-09-25 02:18:48,621 WARN L333 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2020-09-25 02:18:48,621 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 0 imperfect interpolant sequences. [2020-09-25 02:18:48,621 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [] total 0 [2020-09-25 02:18:48,622 ERROR L206 FreeRefinementEngine]: Strategy FIXED_PREFERENCES failed to provide any proof altough trace is infeasible [2020-09-25 02:18:48,623 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-09-25 02:18:48,628 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 02:18:48,646 WARN L231 ceAbstractionStarter]: Unable to decide correctness. Please check the following counterexample manually. [2020-09-25 02:18:48,646 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.09 02:18:48 BoogieIcfgContainer [2020-09-25 02:18:48,647 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-25 02:18:48,650 INFO L168 Benchmark]: Toolchain (without parser) took 1610.30 ms. Allocated memory was 147.3 MB in the beginning and 205.0 MB in the end (delta: 57.7 MB). Free memory was 102.2 MB in the beginning and 137.2 MB in the end (delta: -35.0 MB). Peak memory consumption was 22.7 MB. Max. memory is 7.1 GB. [2020-09-25 02:18:48,651 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 147.3 MB. Free memory was 120.7 MB in the beginning and 120.5 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. [2020-09-25 02:18:48,652 INFO L168 Benchmark]: CACSL2BoogieTranslator took 345.99 ms. Allocated memory is still 147.3 MB. Free memory was 101.5 MB in the beginning and 91.0 MB in the end (delta: 10.6 MB). Peak memory consumption was 10.6 MB. Max. memory is 7.1 GB. [2020-09-25 02:18:48,653 INFO L168 Benchmark]: Boogie Preprocessor took 149.40 ms. Allocated memory was 147.3 MB in the beginning and 205.0 MB in the end (delta: 57.7 MB). Free memory was 91.0 MB in the beginning and 182.3 MB in the end (delta: -91.3 MB). Peak memory consumption was 9.9 MB. Max. memory is 7.1 GB. [2020-09-25 02:18:48,654 INFO L168 Benchmark]: RCFGBuilder took 504.15 ms. Allocated memory is still 205.0 MB. Free memory was 182.3 MB in the beginning and 161.5 MB in the end (delta: 20.7 MB). Peak memory consumption was 20.7 MB. Max. memory is 7.1 GB. [2020-09-25 02:18:48,655 INFO L168 Benchmark]: TraceAbstraction took 602.29 ms. Allocated memory is still 205.0 MB. Free memory was 160.9 MB in the beginning and 137.2 MB in the end (delta: 23.7 MB). Peak memory consumption was 23.7 MB. Max. memory is 7.1 GB. [2020-09-25 02:18:48,659 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 147.3 MB. Free memory was 120.7 MB in the beginning and 120.5 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 345.99 ms. Allocated memory is still 147.3 MB. Free memory was 101.5 MB in the beginning and 91.0 MB in the end (delta: 10.6 MB). Peak memory consumption was 10.6 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 149.40 ms. Allocated memory was 147.3 MB in the beginning and 205.0 MB in the end (delta: 57.7 MB). Free memory was 91.0 MB in the beginning and 182.3 MB in the end (delta: -91.3 MB). Peak memory consumption was 9.9 MB. Max. memory is 7.1 GB. * RCFGBuilder took 504.15 ms. Allocated memory is still 205.0 MB. Free memory was 182.3 MB in the beginning and 161.5 MB in the end (delta: 20.7 MB). Peak memory consumption was 20.7 MB. Max. memory is 7.1 GB. * TraceAbstraction took 602.29 ms. Allocated memory is still 205.0 MB. Free memory was 160.9 MB in the beginning and 137.2 MB in the end (delta: 23.7 MB). Peak memory consumption was 23.7 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 13]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: unable to decide satisfiability of path constraint. Possible FailurePath: [L17] int N; [L21] N = __VERIFIER_nondet_int() [L22] COND FALSE !(N <= 0) [L23] CALL assume_abort_if_not(N <= 2147483647/sizeof(int)) [L11] COND FALSE !(!cond) [L23] RET assume_abort_if_not(N <= 2147483647/sizeof(int)) [L25] int i; [L26] long long sum[1]; [L27] long long *a = malloc(sizeof(long long)*N); [L29] sum[0] = 0 [L30] i=0 [L34] i=0 [L39] i=0 [L44] i=0 [L49] EXPR sum[0] [L49] CALL __VERIFIER_assert(sum[0] == N*(N+2)) [L13] COND TRUE !(cond) [L13] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 76 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNKNOWN, OverallTime: 0.5s, OverallIterations: 1, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=76occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 35 NumberOfCodeBlocks, 35 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request...