/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 log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/array-fpi/res1of.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-24 17:19:50,287 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-24 17:19:50,291 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-24 17:19:50,335 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-24 17:19:50,336 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-24 17:19:50,344 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-24 17:19:50,347 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-24 17:19:50,351 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-24 17:19:50,354 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-24 17:19:50,357 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-24 17:19:50,358 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-24 17:19:50,359 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-24 17:19:50,360 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-24 17:19:50,363 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-24 17:19:50,365 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-24 17:19:50,368 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-24 17:19:50,370 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-24 17:19:50,371 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-24 17:19:50,373 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-24 17:19:50,382 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-24 17:19:50,384 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-24 17:19:50,386 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-24 17:19:50,387 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-24 17:19:50,388 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-24 17:19:50,405 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-24 17:19:50,405 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-24 17:19:50,405 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-24 17:19:50,406 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-24 17:19:50,407 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-24 17:19:50,411 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-24 17:19:50,411 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-24 17:19:50,412 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-24 17:19:50,417 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-24 17:19:50,418 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-24 17:19:50,420 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-24 17:19:50,420 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-24 17:19:50,421 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-24 17:19:50,421 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-24 17:19:50,421 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-24 17:19:50,422 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-24 17:19:50,423 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-24 17:19:50,425 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 17:19:50,471 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-24 17:19:50,471 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-24 17:19:50,473 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-24 17:19:50,474 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-24 17:19:50,474 INFO L138 SettingsManager]: * Use SBE=true [2020-09-24 17:19:50,474 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-24 17:19:50,474 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-24 17:19:50,475 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-24 17:19:50,475 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-24 17:19:50,475 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-24 17:19:50,476 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-24 17:19:50,476 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-24 17:19:50,477 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-24 17:19:50,477 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-24 17:19:50,477 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-24 17:19:50,478 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-24 17:19:50,478 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-24 17:19:50,478 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-24 17:19:50,478 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-24 17:19:50,478 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-24 17:19:50,479 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-24 17:19:50,479 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 17:19:50,479 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-24 17:19:50,479 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-24 17:19:50,479 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-24 17:19:50,480 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-24 17:19:50,480 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-24 17:19:50,480 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-24 17:19:50,480 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-24 17:19:50,480 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;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;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;log-additional-information=true; [2020-09-24 17:19:50,968 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-24 17:19:50,994 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-24 17:19:50,998 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-24 17:19:51,000 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-24 17:19:51,001 INFO L275 PluginConnector]: CDTParser initialized [2020-09-24 17:19:51,002 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/array-fpi/res1of.c [2020-09-24 17:19:51,087 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/8b788156c/04e912e09bc448b5812691449f5137e1/FLAG91ee6755a [2020-09-24 17:19:51,630 INFO L306 CDTParser]: Found 1 translation units. [2020-09-24 17:19:51,631 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/array-fpi/res1of.c [2020-09-24 17:19:51,640 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/8b788156c/04e912e09bc448b5812691449f5137e1/FLAG91ee6755a [2020-09-24 17:19:51,958 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/8b788156c/04e912e09bc448b5812691449f5137e1 [2020-09-24 17:19:51,970 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-24 17:19:51,976 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-24 17:19:51,977 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-24 17:19:51,977 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-24 17:19:51,982 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-24 17:19:51,983 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 05:19:51" (1/1) ... [2020-09-24 17:19:51,988 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1850e0e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 05:19:51, skipping insertion in model container [2020-09-24 17:19:51,988 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 05:19:51" (1/1) ... [2020-09-24 17:19:51,997 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-24 17:19:52,027 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-24 17:19:52,297 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 17:19:52,307 INFO L203 MainTranslator]: Completed pre-run [2020-09-24 17:19:52,332 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 17:19:52,350 INFO L208 MainTranslator]: Completed translation [2020-09-24 17:19:52,351 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 05:19:52 WrapperNode [2020-09-24 17:19:52,351 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-24 17:19:52,352 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-24 17:19:52,352 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-24 17:19:52,352 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-24 17:19:52,444 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 05:19:52" (1/1) ... [2020-09-24 17:19:52,445 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 05:19:52" (1/1) ... [2020-09-24 17:19:52,454 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 05:19:52" (1/1) ... [2020-09-24 17:19:52,455 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 05:19:52" (1/1) ... [2020-09-24 17:19:52,478 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 05:19:52" (1/1) ... [2020-09-24 17:19:52,485 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 05:19:52" (1/1) ... [2020-09-24 17:19:52,487 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 05:19:52" (1/1) ... [2020-09-24 17:19:52,492 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-24 17:19:52,493 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-24 17:19:52,493 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-24 17:19:52,493 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-24 17:19:52,496 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 05:19:52" (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 17:19:52,571 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-24 17:19:52,571 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-24 17:19:52,572 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-09-24 17:19:52,572 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-09-24 17:19:52,572 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-24 17:19:52,572 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-24 17:19:52,572 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-09-24 17:19:52,573 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-09-24 17:19:52,573 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-09-24 17:19:52,573 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-24 17:19:52,573 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-24 17:19:52,573 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-24 17:19:52,574 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-24 17:19:52,574 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-24 17:19:52,574 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-24 17:19:52,574 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-24 17:19:52,574 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-24 17:19:52,575 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-24 17:19:52,575 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-24 17:19:52,991 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-24 17:19:52,992 INFO L295 CfgBuilder]: Removed 4 assume(true) statements. [2020-09-24 17:19:52,997 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 05:19:52 BoogieIcfgContainer [2020-09-24 17:19:52,998 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-24 17:19:52,999 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-24 17:19:52,999 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-24 17:19:53,003 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-24 17:19:53,004 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.09 05:19:51" (1/3) ... [2020-09-24 17:19:53,005 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7059dea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 05:19:53, skipping insertion in model container [2020-09-24 17:19:53,005 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 05:19:52" (2/3) ... [2020-09-24 17:19:53,005 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7059dea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 05:19:53, skipping insertion in model container [2020-09-24 17:19:53,006 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 05:19:52" (3/3) ... [2020-09-24 17:19:53,008 INFO L109 eAbstractionObserver]: Analyzing ICFG res1of.c [2020-09-24 17:19:53,020 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-24 17:19:53,032 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-24 17:19:53,055 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-24 17:19:53,086 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-24 17:19:53,086 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-24 17:19:53,086 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-24 17:19:53,086 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-24 17:19:53,086 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-24 17:19:53,087 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-24 17:19:53,087 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-24 17:19:53,087 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-24 17:19:53,109 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states. [2020-09-24 17:19:53,117 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2020-09-24 17:19:53,117 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 17:19:53,119 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 17:19:53,119 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 17:19:53,125 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 17:19:53,126 INFO L82 PathProgramCache]: Analyzing trace with hash -1485233439, now seen corresponding path program 1 times [2020-09-24 17:19:53,135 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 17:19:53,136 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1996806148] [2020-09-24 17:19:53,136 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 17:19:53,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:19:53,334 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:19:53,401 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:19:53,454 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:19:53,677 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:19:53,968 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:19:54,423 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:19:54,424 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 48 [2020-09-24 17:19:54,424 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-24 17:19:54,424 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1130 [2020-09-24 17:19:54,426 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:19:54,426 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 17:19:54,427 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-09-24 17:19:54,427 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-09-24 17:19:54,427 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-24 17:19:54,611 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 17:19:54,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:19:54,616 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:19:54,623 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:19:54,624 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 17:19:54,624 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:19:54,625 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-24 17:19:54,625 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:19:54,625 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:19:54,625 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:19:54,626 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:19:54,626 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 17:19:54,632 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-24 17:19:54,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:19:54,636 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:19:54,646 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:19:54,647 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 17:19:54,647 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:19:54,647 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-24 17:19:54,647 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:19:54,648 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 17:19:54,648 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:19:54,648 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 17:19:54,648 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:19:54,663 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 17:19:54,664 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1996806148] [2020-09-24 17:19:54,666 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 17:19:54,667 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-24 17:19:54,668 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1856179236] [2020-09-24 17:19:54,675 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-24 17:19:54,675 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 17:19:54,694 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-24 17:19:54,696 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-09-24 17:19:54,699 INFO L87 Difference]: Start difference. First operand 74 states. Second operand 8 states. [2020-09-24 17:19:55,168 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 17:19:55,169 INFO L93 Difference]: Finished difference Result 160 states and 188 transitions. [2020-09-24 17:19:55,170 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-09-24 17:19:55,172 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 37 [2020-09-24 17:19:55,172 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 17:19:55,185 INFO L225 Difference]: With dead ends: 160 [2020-09-24 17:19:55,185 INFO L226 Difference]: Without dead ends: 77 [2020-09-24 17:19:55,191 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=44, Invalid=112, Unknown=0, NotChecked=0, Total=156 [2020-09-24 17:19:55,215 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77 states. [2020-09-24 17:19:55,252 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77 to 69. [2020-09-24 17:19:55,253 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 69 states. [2020-09-24 17:19:55,261 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 69 states and 75 transitions. [2020-09-24 17:19:55,263 INFO L78 Accepts]: Start accepts. Automaton has 69 states and 75 transitions. Word has length 37 [2020-09-24 17:19:55,264 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 17:19:55,264 INFO L479 AbstractCegarLoop]: Abstraction has 69 states and 75 transitions. [2020-09-24 17:19:55,264 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-24 17:19:55,265 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 75 transitions. [2020-09-24 17:19:55,269 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2020-09-24 17:19:55,269 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 17:19:55,270 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] [2020-09-24 17:19:55,270 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-24 17:19:55,271 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 17:19:55,271 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 17:19:55,271 INFO L82 PathProgramCache]: Analyzing trace with hash -1830842721, now seen corresponding path program 1 times [2020-09-24 17:19:55,271 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 17:19:55,272 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [522253917] [2020-09-24 17:19:55,272 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 17:19:55,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:19:55,322 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:19:55,354 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:19:55,418 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:19:55,630 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:19:55,659 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:19:56,023 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:19:56,300 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:19:56,414 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:19:58,349 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:19:58,349 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 53 [2020-09-24 17:19:58,350 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-09-24 17:19:58,350 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3046 [2020-09-24 17:19:58,350 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:19:58,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 17:19:58,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 33 [2020-09-24 17:19:58,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-09-24 17:19:58,361 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 10 [2020-09-24 17:19:58,447 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 17:19:58,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:19:58,458 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:19:58,468 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:19:58,469 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 17:19:58,469 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:19:58,470 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-24 17:19:58,470 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:19:58,470 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:19:58,471 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:19:58,471 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:19:58,472 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 17:19:58,475 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-24 17:19:58,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:19:58,478 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:19:58,483 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:19:58,484 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 17:19:58,484 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:19:58,484 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 17:19:58,485 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:19:58,485 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:19:58,485 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:19:58,486 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:19:58,486 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 17:19:58,494 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 17:19:58,495 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [522253917] [2020-09-24 17:19:58,495 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 17:19:58,495 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-09-24 17:19:58,496 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1341417677] [2020-09-24 17:19:58,499 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-24 17:19:58,499 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 17:19:58,500 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-24 17:19:58,500 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-09-24 17:19:58,500 INFO L87 Difference]: Start difference. First operand 69 states and 75 transitions. Second operand 6 states. [2020-09-24 17:19:58,907 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 17:19:58,907 INFO L93 Difference]: Finished difference Result 123 states and 134 transitions. [2020-09-24 17:19:58,908 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-09-24 17:19:58,908 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 42 [2020-09-24 17:19:58,909 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 17:19:58,911 INFO L225 Difference]: With dead ends: 123 [2020-09-24 17:19:58,911 INFO L226 Difference]: Without dead ends: 86 [2020-09-24 17:19:58,913 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2020-09-24 17:19:58,915 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86 states. [2020-09-24 17:19:58,936 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86 to 66. [2020-09-24 17:19:58,936 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 66 states. [2020-09-24 17:19:58,937 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 69 transitions. [2020-09-24 17:19:58,941 INFO L78 Accepts]: Start accepts. Automaton has 66 states and 69 transitions. Word has length 42 [2020-09-24 17:19:58,941 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 17:19:58,941 INFO L479 AbstractCegarLoop]: Abstraction has 66 states and 69 transitions. [2020-09-24 17:19:58,942 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-24 17:19:58,942 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 69 transitions. [2020-09-24 17:19:58,946 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2020-09-24 17:19:58,946 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 17:19:58,947 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 17:19:58,950 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-24 17:19:58,950 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 17:19:58,951 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 17:19:58,952 INFO L82 PathProgramCache]: Analyzing trace with hash 499886001, now seen corresponding path program 1 times [2020-09-24 17:19:58,952 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 17:19:58,953 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1992992309] [2020-09-24 17:19:58,953 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 17:19:58,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-09-24 17:19:59,002 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-09-24 17:19:59,003 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-09-24 17:19:59,010 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-24 17:19:59,045 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.09 05:19:59 BoogieIcfgContainer [2020-09-24 17:19:59,046 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-24 17:19:59,052 INFO L168 Benchmark]: Toolchain (without parser) took 7075.67 ms. Allocated memory was 139.5 MB in the beginning and 248.0 MB in the end (delta: 108.5 MB). Free memory was 102.5 MB in the beginning and 101.7 MB in the end (delta: 839.0 kB). Peak memory consumption was 109.4 MB. Max. memory is 7.1 GB. [2020-09-24 17:19:59,053 INFO L168 Benchmark]: CDTParser took 0.27 ms. Allocated memory is still 139.5 MB. Free memory was 121.0 MB in the beginning and 120.8 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. [2020-09-24 17:19:59,055 INFO L168 Benchmark]: CACSL2BoogieTranslator took 374.47 ms. Allocated memory is still 139.5 MB. Free memory was 101.9 MB in the beginning and 91.4 MB in the end (delta: 10.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 7.1 GB. [2020-09-24 17:19:59,057 INFO L168 Benchmark]: Boogie Preprocessor took 140.57 ms. Allocated memory was 139.5 MB in the beginning and 201.3 MB in the end (delta: 61.9 MB). Free memory was 91.4 MB in the beginning and 178.7 MB in the end (delta: -87.3 MB). Peak memory consumption was 12.2 MB. Max. memory is 7.1 GB. [2020-09-24 17:19:59,059 INFO L168 Benchmark]: RCFGBuilder took 505.09 ms. Allocated memory is still 201.3 MB. Free memory was 178.7 MB in the beginning and 157.4 MB in the end (delta: 21.3 MB). Peak memory consumption was 21.3 MB. Max. memory is 7.1 GB. [2020-09-24 17:19:59,064 INFO L168 Benchmark]: TraceAbstraction took 6046.42 ms. Allocated memory was 201.3 MB in the beginning and 248.0 MB in the end (delta: 46.7 MB). Free memory was 156.7 MB in the beginning and 101.7 MB in the end (delta: 55.0 MB). Peak memory consumption was 101.7 MB. Max. memory is 7.1 GB. [2020-09-24 17:19:59,077 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27 ms. Allocated memory is still 139.5 MB. Free memory was 121.0 MB in the beginning and 120.8 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 374.47 ms. Allocated memory is still 139.5 MB. Free memory was 101.9 MB in the beginning and 91.4 MB in the end (delta: 10.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 140.57 ms. Allocated memory was 139.5 MB in the beginning and 201.3 MB in the end (delta: 61.9 MB). Free memory was 91.4 MB in the beginning and 178.7 MB in the end (delta: -87.3 MB). Peak memory consumption was 12.2 MB. Max. memory is 7.1 GB. * RCFGBuilder took 505.09 ms. Allocated memory is still 201.3 MB. Free memory was 178.7 MB in the beginning and 157.4 MB in the end (delta: 21.3 MB). Peak memory consumption was 21.3 MB. Max. memory is 7.1 GB. * TraceAbstraction took 6046.42 ms. Allocated memory was 201.3 MB in the beginning and 248.0 MB in the end (delta: 46.7 MB). Free memory was 156.7 MB in the beginning and 101.7 MB in the end (delta: 55.0 MB). Peak memory consumption was 101.7 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 13]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a 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] int *a = malloc(sizeof(int)*N); [L28] int *b = malloc(sizeof(int)*N); [L30] sum[0] = 0 [L31] i=0 [L31] COND TRUE i