/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=BIGGEST --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/indp5f.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-24 20:41:06,421 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-24 20:41:06,424 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-24 20:41:06,456 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-24 20:41:06,457 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-24 20:41:06,458 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-24 20:41:06,460 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-24 20:41:06,462 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-24 20:41:06,463 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-24 20:41:06,464 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-24 20:41:06,466 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-24 20:41:06,467 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-24 20:41:06,467 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-24 20:41:06,469 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-24 20:41:06,470 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-24 20:41:06,471 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-24 20:41:06,472 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-24 20:41:06,473 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-24 20:41:06,475 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-24 20:41:06,477 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-24 20:41:06,478 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-24 20:41:06,479 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-24 20:41:06,481 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-24 20:41:06,482 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-24 20:41:06,484 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-24 20:41:06,484 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-24 20:41:06,485 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-24 20:41:06,486 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-24 20:41:06,486 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-24 20:41:06,487 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-24 20:41:06,487 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-24 20:41:06,489 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-24 20:41:06,489 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-24 20:41:06,490 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-24 20:41:06,491 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-24 20:41:06,492 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-24 20:41:06,492 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-24 20:41:06,493 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-24 20:41:06,493 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-24 20:41:06,494 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-24 20:41:06,495 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-24 20:41:06,496 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 [2020-09-24 20:41:06,532 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-24 20:41:06,532 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-24 20:41:06,533 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-24 20:41:06,534 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-24 20:41:06,534 INFO L138 SettingsManager]: * Use SBE=true [2020-09-24 20:41:06,535 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-24 20:41:06,535 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-24 20:41:06,535 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-24 20:41:06,535 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-24 20:41:06,535 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-24 20:41:06,537 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-24 20:41:06,537 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-24 20:41:06,537 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-24 20:41:06,537 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-24 20:41:06,538 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-24 20:41:06,539 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-24 20:41:06,539 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-24 20:41:06,539 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-24 20:41:06,539 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-24 20:41:06,539 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-24 20:41:06,540 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-24 20:41:06,540 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 20:41:06,540 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-24 20:41:06,541 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-24 20:41:06,541 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-24 20:41:06,541 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-24 20:41:06,541 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-24 20:41:06,541 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-24 20:41:06,541 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-24 20:41:06,542 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=BIGGEST;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=BIGGEST;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=BIGGEST;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=BIGGEST;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=BIGGEST;log-additional-information=true; [2020-09-24 20:41:07,022 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-24 20:41:07,041 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-24 20:41:07,047 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-24 20:41:07,050 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-24 20:41:07,050 INFO L275 PluginConnector]: CDTParser initialized [2020-09-24 20:41:07,051 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/array-fpi/indp5f.c [2020-09-24 20:41:07,142 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/05b632fbb/fd042b154b9940ba9f3ed6ad8f8402db/FLAG09187db96 [2020-09-24 20:41:07,718 INFO L306 CDTParser]: Found 1 translation units. [2020-09-24 20:41:07,719 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/array-fpi/indp5f.c [2020-09-24 20:41:07,732 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/05b632fbb/fd042b154b9940ba9f3ed6ad8f8402db/FLAG09187db96 [2020-09-24 20:41:08,053 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/05b632fbb/fd042b154b9940ba9f3ed6ad8f8402db [2020-09-24 20:41:08,066 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-24 20:41:08,073 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-24 20:41:08,074 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-24 20:41:08,074 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-24 20:41:08,082 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-24 20:41:08,083 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 08:41:08" (1/1) ... [2020-09-24 20:41:08,088 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3d876c0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:41:08, skipping insertion in model container [2020-09-24 20:41:08,088 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 08:41:08" (1/1) ... [2020-09-24 20:41:08,098 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-24 20:41:08,127 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-24 20:41:08,349 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 20:41:08,361 INFO L203 MainTranslator]: Completed pre-run [2020-09-24 20:41:08,391 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 20:41:08,498 INFO L208 MainTranslator]: Completed translation [2020-09-24 20:41:08,499 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:41:08 WrapperNode [2020-09-24 20:41:08,499 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-24 20:41:08,500 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-24 20:41:08,500 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-24 20:41:08,500 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-24 20:41:08,515 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:41:08" (1/1) ... [2020-09-24 20:41:08,516 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:41:08" (1/1) ... [2020-09-24 20:41:08,527 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:41:08" (1/1) ... [2020-09-24 20:41:08,528 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:41:08" (1/1) ... [2020-09-24 20:41:08,538 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:41:08" (1/1) ... [2020-09-24 20:41:08,546 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:41:08" (1/1) ... [2020-09-24 20:41:08,548 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:41:08" (1/1) ... [2020-09-24 20:41:08,551 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-24 20:41:08,552 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-24 20:41:08,552 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-24 20:41:08,552 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-24 20:41:08,553 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:41:08" (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 [2020-09-24 20:41:08,637 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-24 20:41:08,638 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-24 20:41:08,638 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-09-24 20:41:08,638 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-09-24 20:41:08,639 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-24 20:41:08,640 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-24 20:41:08,640 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-09-24 20:41:08,640 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-09-24 20:41:08,641 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-09-24 20:41:08,641 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-24 20:41:08,641 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-24 20:41:08,641 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-24 20:41:08,642 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-24 20:41:08,642 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-24 20:41:08,642 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-24 20:41:08,643 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-24 20:41:08,643 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-24 20:41:08,643 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-24 20:41:08,643 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-24 20:41:09,003 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-24 20:41:09,004 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-24 20:41:09,010 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 08:41:09 BoogieIcfgContainer [2020-09-24 20:41:09,010 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-24 20:41:09,012 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-24 20:41:09,012 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-24 20:41:09,020 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-24 20:41:09,020 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.09 08:41:08" (1/3) ... [2020-09-24 20:41:09,022 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@68116f39 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 08:41:09, skipping insertion in model container [2020-09-24 20:41:09,022 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:41:08" (2/3) ... [2020-09-24 20:41:09,022 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@68116f39 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 08:41:09, skipping insertion in model container [2020-09-24 20:41:09,023 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 08:41:09" (3/3) ... [2020-09-24 20:41:09,028 INFO L109 eAbstractionObserver]: Analyzing ICFG indp5f.c [2020-09-24 20:41:09,061 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-24 20:41:09,073 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-24 20:41:09,094 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-24 20:41:09,125 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-24 20:41:09,125 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-24 20:41:09,126 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-24 20:41:09,126 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-24 20:41:09,126 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-24 20:41:09,126 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-24 20:41:09,126 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-24 20:41:09,126 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-24 20:41:09,152 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states. [2020-09-24 20:41:09,161 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2020-09-24 20:41:09,161 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 20:41:09,162 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, 1, 1] [2020-09-24 20:41:09,163 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 20:41:09,169 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 20:41:09,169 INFO L82 PathProgramCache]: Analyzing trace with hash 1581664836, now seen corresponding path program 1 times [2020-09-24 20:41:09,179 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 20:41:09,179 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [947090241] [2020-09-24 20:41:09,180 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 20:41:09,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:41:09,373 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:41:09,428 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:41:09,479 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:41:09,688 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:41:09,947 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:41:10,200 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:41:10,201 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 48 [2020-09-24 20:41:10,201 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-24 20:41:10,201 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 860 [2020-09-24 20:41:10,204 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:41:10,205 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-24 20:41:10,205 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-09-24 20:41:10,205 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-09-24 20:41:10,206 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-24 20:41:10,304 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 20:41:10,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:41:10,310 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:41:10,318 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:41:10,319 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 20:41:10,319 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:41:10,320 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-24 20:41:10,320 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:41:10,320 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:41:10,321 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:41:10,321 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:41:10,321 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:41:10,328 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-24 20:41:10,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:41:10,335 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:41:10,347 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:41:10,348 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 20:41:10,348 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:41:10,349 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-09-24 20:41:10,349 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:41:10,349 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:41:10,350 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:41:10,350 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 20:41:10,350 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:41:10,361 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 20:41:10,362 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [947090241] [2020-09-24 20:41:10,365 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 20:41:10,366 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-24 20:41:10,367 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1457001701] [2020-09-24 20:41:10,376 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-24 20:41:10,376 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 20:41:10,397 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-24 20:41:10,399 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-09-24 20:41:10,402 INFO L87 Difference]: Start difference. First operand 80 states. Second operand 5 states. [2020-09-24 20:41:10,761 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 20:41:10,761 INFO L93 Difference]: Finished difference Result 152 states and 184 transitions. [2020-09-24 20:41:10,762 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-24 20:41:10,764 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 37 [2020-09-24 20:41:10,765 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 20:41:10,775 INFO L225 Difference]: With dead ends: 152 [2020-09-24 20:41:10,775 INFO L226 Difference]: Without dead ends: 73 [2020-09-24 20:41:10,780 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-09-24 20:41:10,800 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73 states. [2020-09-24 20:41:10,828 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73 to 73. [2020-09-24 20:41:10,830 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 73 states. [2020-09-24 20:41:10,832 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 73 states and 77 transitions. [2020-09-24 20:41:10,834 INFO L78 Accepts]: Start accepts. Automaton has 73 states and 77 transitions. Word has length 37 [2020-09-24 20:41:10,834 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 20:41:10,835 INFO L479 AbstractCegarLoop]: Abstraction has 73 states and 77 transitions. [2020-09-24 20:41:10,835 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-24 20:41:10,835 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 77 transitions. [2020-09-24 20:41:10,837 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2020-09-24 20:41:10,838 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 20:41:10,838 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 20:41:10,838 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-24 20:41:10,839 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 20:41:10,839 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 20:41:10,839 INFO L82 PathProgramCache]: Analyzing trace with hash -25889220, now seen corresponding path program 1 times [2020-09-24 20:41:10,840 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 20:41:10,840 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [261502218] [2020-09-24 20:41:10,840 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 20:41:10,860 ERROR L271 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-09-24 20:41:10,860 WARN L168 FreeRefinementEngine]: Strategy FIXED_PREFERENCES was unsuccessful and could not determine trace feasibility [2020-09-24 20:41:10,860 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-09-24 20:41:10,872 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-24 20:41:10,905 WARN L231 ceAbstractionStarter]: Unable to decide correctness. Please check the following counterexample manually. [2020-09-24 20:41:10,906 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.09 08:41:10 BoogieIcfgContainer [2020-09-24 20:41:10,907 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-24 20:41:10,911 INFO L168 Benchmark]: Toolchain (without parser) took 2841.50 ms. Allocated memory was 138.4 MB in the beginning and 232.8 MB in the end (delta: 94.4 MB). Free memory was 101.2 MB in the beginning and 175.2 MB in the end (delta: -73.9 MB). Peak memory consumption was 20.4 MB. Max. memory is 7.1 GB. [2020-09-24 20:41:10,914 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 138.4 MB. Free memory was 120.0 MB in the beginning and 119.8 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. [2020-09-24 20:41:10,916 INFO L168 Benchmark]: CACSL2BoogieTranslator took 425.98 ms. Allocated memory was 138.4 MB in the beginning and 201.3 MB in the end (delta: 62.9 MB). Free memory was 100.6 MB in the beginning and 180.2 MB in the end (delta: -79.5 MB). Peak memory consumption was 22.6 MB. Max. memory is 7.1 GB. [2020-09-24 20:41:10,917 INFO L168 Benchmark]: Boogie Preprocessor took 51.14 ms. Allocated memory is still 201.3 MB. Free memory was 180.2 MB in the beginning and 177.7 MB in the end (delta: 2.4 MB). Peak memory consumption was 2.4 MB. Max. memory is 7.1 GB. [2020-09-24 20:41:10,918 INFO L168 Benchmark]: RCFGBuilder took 458.89 ms. Allocated memory is still 201.3 MB. Free memory was 177.7 MB in the beginning and 155.5 MB in the end (delta: 22.2 MB). Peak memory consumption was 22.2 MB. Max. memory is 7.1 GB. [2020-09-24 20:41:10,920 INFO L168 Benchmark]: TraceAbstraction took 1895.15 ms. Allocated memory was 201.3 MB in the beginning and 232.8 MB in the end (delta: 31.5 MB). Free memory was 154.8 MB in the beginning and 175.2 MB in the end (delta: -20.3 MB). Peak memory consumption was 11.1 MB. Max. memory is 7.1 GB. [2020-09-24 20:41:10,932 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 138.4 MB. Free memory was 120.0 MB in the beginning and 119.8 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 425.98 ms. Allocated memory was 138.4 MB in the beginning and 201.3 MB in the end (delta: 62.9 MB). Free memory was 100.6 MB in the beginning and 180.2 MB in the end (delta: -79.5 MB). Peak memory consumption was 22.6 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 51.14 ms. Allocated memory is still 201.3 MB. Free memory was 180.2 MB in the beginning and 177.7 MB in the end (delta: 2.4 MB). Peak memory consumption was 2.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 458.89 ms. Allocated memory is still 201.3 MB. Free memory was 177.7 MB in the beginning and 155.5 MB in the end (delta: 22.2 MB). Peak memory consumption was 22.2 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1895.15 ms. Allocated memory was 201.3 MB in the beginning and 232.8 MB in the end (delta: 31.5 MB). Free memory was 154.8 MB in the beginning and 175.2 MB in the end (delta: -20.3 MB). Peak memory consumption was 11.1 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 *a = malloc(sizeof(long long)*N); [L27] long long sum[1]; [L29] sum[0] = 1 [L30] i=0 [L30] COND TRUE i