/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.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 SequenceOfStatements --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=WIDESTAMONGSMALL --traceabstraction.additional.smt.options tolerance=0.6 --traceabstraction.additional.smt.options log-additional-information=true --traceabstraction.additional.smt.options unknown-allowed=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf language data_model -i ../../../trunk/examples/svcomp/array-fpi/s2liff.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-0f64333 [2020-10-28 09:17:51,893 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-28 09:17:51,896 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-28 09:17:51,938 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-28 09:17:51,939 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-28 09:17:51,940 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-28 09:17:51,942 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-28 09:17:51,945 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-28 09:17:51,948 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-28 09:17:51,950 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-28 09:17:51,951 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-28 09:17:51,953 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-28 09:17:51,953 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-28 09:17:51,955 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-28 09:17:51,957 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-28 09:17:51,959 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-28 09:17:51,960 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-28 09:17:51,961 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-28 09:17:51,964 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-28 09:17:51,991 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-28 09:17:51,993 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-28 09:17:51,995 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-28 09:17:51,997 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-28 09:17:51,999 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-28 09:17:52,002 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-28 09:17:52,003 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-28 09:17:52,003 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-28 09:17:52,005 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-28 09:17:52,006 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-28 09:17:52,007 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-28 09:17:52,008 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-28 09:17:52,009 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-28 09:17:52,010 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-28 09:17:52,011 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-28 09:17:52,013 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-28 09:17:52,013 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-28 09:17:52,014 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-28 09:17:52,014 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-28 09:17:52,015 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-28 09:17:52,016 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-28 09:17:52,017 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-28 09:17:52,019 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 [2020-10-28 09:17:52,049 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-28 09:17:52,050 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-28 09:17:52,052 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-28 09:17:52,052 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-28 09:17:52,053 INFO L138 SettingsManager]: * Use SBE=true [2020-10-28 09:17:52,053 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-28 09:17:52,053 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-28 09:17:52,054 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-28 09:17:52,054 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-28 09:17:52,054 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-28 09:17:52,054 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-28 09:17:52,055 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-28 09:17:52,055 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-28 09:17:52,055 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-28 09:17:52,056 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-28 09:17:52,056 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-28 09:17:52,056 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-28 09:17:52,057 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-28 09:17:52,057 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-28 09:17:52,057 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-28 09:17:52,058 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-28 09:17:52,058 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-28 09:17:52,059 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-28 09:17:52,059 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-28 09:17:52,059 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-28 09:17:52,060 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-28 09:17:52,060 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-28 09:17:52,060 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-28 09:17:52,061 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-28 09:17:52,061 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.6;log-additional-information=true;unknown-allowed=true; [2020-10-28 09:17:52,575 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-28 09:17:52,607 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-28 09:17:52,610 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-28 09:17:52,612 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-28 09:17:52,613 INFO L275 PluginConnector]: CDTParser initialized [2020-10-28 09:17:52,614 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/array-fpi/s2liff.c [2020-10-28 09:17:52,705 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/7d339b703/207a592a53de4d568822d5c815c60ebe/FLAG0f92d64d6 [2020-10-28 09:17:53,370 INFO L306 CDTParser]: Found 1 translation units. [2020-10-28 09:17:53,371 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/array-fpi/s2liff.c [2020-10-28 09:17:53,389 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/7d339b703/207a592a53de4d568822d5c815c60ebe/FLAG0f92d64d6 [2020-10-28 09:17:53,711 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/7d339b703/207a592a53de4d568822d5c815c60ebe [2020-10-28 09:17:53,717 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-28 09:17:53,725 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-28 09:17:53,729 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-28 09:17:53,730 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-28 09:17:53,735 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-28 09:17:53,736 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 09:17:53" (1/1) ... [2020-10-28 09:17:53,742 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@12fc1001 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:17:53, skipping insertion in model container [2020-10-28 09:17:53,743 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 09:17:53" (1/1) ... [2020-10-28 09:17:53,754 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-28 09:17:53,780 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-28 09:17:54,047 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-28 09:17:54,060 INFO L203 MainTranslator]: Completed pre-run [2020-10-28 09:17:54,089 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-28 09:17:54,109 INFO L208 MainTranslator]: Completed translation [2020-10-28 09:17:54,110 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:17:54 WrapperNode [2020-10-28 09:17:54,110 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-28 09:17:54,111 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-28 09:17:54,112 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-28 09:17:54,112 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-28 09:17:54,127 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:17:54" (1/1) ... [2020-10-28 09:17:54,128 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:17:54" (1/1) ... [2020-10-28 09:17:54,137 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:17:54" (1/1) ... [2020-10-28 09:17:54,138 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:17:54" (1/1) ... [2020-10-28 09:17:54,148 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:17:54" (1/1) ... [2020-10-28 09:17:54,155 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:17:54" (1/1) ... [2020-10-28 09:17:54,157 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:17:54" (1/1) ... [2020-10-28 09:17:54,161 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-28 09:17:54,162 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-28 09:17:54,162 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-28 09:17:54,162 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-28 09:17:54,163 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:17:54" (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 [2020-10-28 09:17:54,275 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-28 09:17:54,275 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-28 09:17:54,276 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-28 09:17:54,277 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-10-28 09:17:54,277 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-10-28 09:17:54,277 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-28 09:17:54,278 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-28 09:17:54,279 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-28 09:17:54,279 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-28 09:17:54,279 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-28 09:17:54,280 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-10-28 09:17:54,281 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-10-28 09:17:54,281 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-28 09:17:54,281 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-10-28 09:17:54,281 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-28 09:17:54,282 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-10-28 09:17:54,282 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-28 09:17:54,283 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-28 09:17:54,283 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-28 09:17:54,283 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-28 09:17:54,283 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-28 09:17:54,283 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-28 09:17:54,844 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-28 09:17:54,844 INFO L298 CfgBuilder]: Removed 3 assume(true) statements. [2020-10-28 09:17:54,846 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 09:17:54 BoogieIcfgContainer [2020-10-28 09:17:54,847 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-28 09:17:54,849 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-28 09:17:54,849 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-28 09:17:54,853 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-28 09:17:54,854 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.10 09:17:53" (1/3) ... [2020-10-28 09:17:54,855 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@c9d551f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 09:17:54, skipping insertion in model container [2020-10-28 09:17:54,855 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:17:54" (2/3) ... [2020-10-28 09:17:54,855 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@c9d551f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 09:17:54, skipping insertion in model container [2020-10-28 09:17:54,856 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 09:17:54" (3/3) ... [2020-10-28 09:17:54,858 INFO L111 eAbstractionObserver]: Analyzing ICFG s2liff.c [2020-10-28 09:17:54,872 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-28 09:17:54,878 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-28 09:17:54,894 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-28 09:17:54,925 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-28 09:17:54,925 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-28 09:17:54,925 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-28 09:17:54,926 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-28 09:17:54,926 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-28 09:17:54,926 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-28 09:17:54,926 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-28 09:17:54,926 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-28 09:17:54,947 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states. [2020-10-28 09:17:54,954 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2020-10-28 09:17:54,954 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 09:17:54,955 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] [2020-10-28 09:17:54,956 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 09:17:54,963 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 09:17:54,964 INFO L82 PathProgramCache]: Analyzing trace with hash 371341983, now seen corresponding path program 1 times [2020-10-28 09:17:54,974 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 09:17:54,975 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [524350731] [2020-10-28 09:17:54,975 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 09:17:55,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 09:17:55,247 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:17:55,349 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:17:55,393 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:17:55,455 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:17:56,178 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 09:17:56,178 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 36 [2020-10-28 09:17:56,179 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-28 09:17:56,179 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1003 [2020-10-28 09:17:56,182 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 09:17:56,183 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 09:17:56,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 09:17:56,184 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 17 [2020-10-28 09:17:56,184 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 09:17:56,184 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-10-28 09:17:56,347 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 09:17:56,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 09:17:56,372 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:17:56,390 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 09:17:56,390 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 09:17:56,391 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 09:17:56,391 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-28 09:17:56,392 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 09:17:56,392 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 09:17:56,392 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 09:17:56,393 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 09:17:56,393 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 09:17:56,393 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 09:17:56,406 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-10-28 09:17:56,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 09:17:56,418 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:17:56,425 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 09:17:56,426 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 09:17:56,426 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 09:17:56,427 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-28 09:17:56,427 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 09:17:56,427 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 09:17:56,427 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 09:17:56,428 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-28 09:17:56,428 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 09:17:56,429 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 09:17:56,442 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-28 09:17:56,444 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [524350731] [2020-10-28 09:17:56,447 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 09:17:56,447 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-28 09:17:56,449 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [573046190] [2020-10-28 09:17:56,454 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-28 09:17:56,456 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 09:17:56,476 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-28 09:17:56,477 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-28 09:17:56,480 INFO L87 Difference]: Start difference. First operand 39 states. Second operand 3 states. [2020-10-28 09:17:56,679 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 09:17:56,680 INFO L93 Difference]: Finished difference Result 65 states and 83 transitions. [2020-10-28 09:17:56,681 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-28 09:17:56,683 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 24 [2020-10-28 09:17:56,683 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 09:17:56,692 INFO L225 Difference]: With dead ends: 65 [2020-10-28 09:17:56,693 INFO L226 Difference]: Without dead ends: 29 [2020-10-28 09:17:56,697 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-28 09:17:56,719 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2020-10-28 09:17:56,745 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 29. [2020-10-28 09:17:56,747 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29 states. [2020-10-28 09:17:56,749 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 32 transitions. [2020-10-28 09:17:56,751 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 32 transitions. Word has length 24 [2020-10-28 09:17:56,752 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 09:17:56,752 INFO L481 AbstractCegarLoop]: Abstraction has 29 states and 32 transitions. [2020-10-28 09:17:56,752 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-28 09:17:56,752 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 32 transitions. [2020-10-28 09:17:56,753 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2020-10-28 09:17:56,753 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 09:17:56,753 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] [2020-10-28 09:17:56,754 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-28 09:17:56,754 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 09:17:56,755 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 09:17:56,755 INFO L82 PathProgramCache]: Analyzing trace with hash 1793608214, now seen corresponding path program 1 times [2020-10-28 09:17:56,755 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 09:17:56,756 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2079246654] [2020-10-28 09:17:56,756 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 09:17:56,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 09:17:56,782 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:17:56,802 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:17:56,817 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:17:57,339 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 09:17:57,340 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 36 [2020-10-28 09:17:57,340 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-28 09:17:57,340 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 564 [2020-10-28 09:17:57,341 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 09:17:57,349 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 09:17:57,349 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-28 09:17:57,350 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-28 09:17:57,350 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-10-28 09:17:57,350 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 9 [2020-10-28 09:17:57,477 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 09:17:57,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 09:17:57,494 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:17:57,500 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 09:17:57,500 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 09:17:57,500 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 09:17:57,500 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-28 09:17:57,501 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 09:17:57,501 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 09:17:57,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 09:17:57,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 09:17:57,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 09:17:57,502 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 09:17:57,509 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-10-28 09:17:57,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 09:17:57,516 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:17:57,524 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 09:17:57,524 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 09:17:57,525 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 09:17:57,525 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-28 09:17:57,525 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 09:17:57,525 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 09:17:57,526 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 09:17:57,526 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 09:17:57,526 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-28 09:17:57,526 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 09:17:57,534 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-28 09:17:57,535 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2079246654] [2020-10-28 09:17:57,535 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 09:17:57,536 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-28 09:17:57,536 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1062871579] [2020-10-28 09:17:57,538 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-28 09:17:57,539 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 09:17:57,541 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-28 09:17:57,543 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-28 09:17:57,543 INFO L87 Difference]: Start difference. First operand 29 states and 32 transitions. Second operand 5 states. [2020-10-28 09:17:57,897 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 09:17:57,897 INFO L93 Difference]: Finished difference Result 46 states and 54 transitions. [2020-10-28 09:17:57,898 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-28 09:17:57,898 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 24 [2020-10-28 09:17:57,898 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 09:17:57,899 INFO L225 Difference]: With dead ends: 46 [2020-10-28 09:17:57,900 INFO L226 Difference]: Without dead ends: 32 [2020-10-28 09:17:57,902 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-28 09:17:57,902 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2020-10-28 09:17:57,922 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 32. [2020-10-28 09:17:57,923 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32 states. [2020-10-28 09:17:57,926 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 35 transitions. [2020-10-28 09:17:57,928 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 35 transitions. Word has length 24 [2020-10-28 09:17:57,929 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 09:17:57,929 INFO L481 AbstractCegarLoop]: Abstraction has 32 states and 35 transitions. [2020-10-28 09:17:57,929 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-28 09:17:57,929 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 35 transitions. [2020-10-28 09:17:57,931 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2020-10-28 09:17:57,931 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 09:17:57,931 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] [2020-10-28 09:17:57,932 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-28 09:17:57,932 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 09:17:57,932 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 09:17:57,933 INFO L82 PathProgramCache]: Analyzing trace with hash -2090381425, now seen corresponding path program 1 times [2020-10-28 09:17:57,933 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 09:17:57,934 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1402925451] [2020-10-28 09:17:57,934 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 09:17:57,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-28 09:17:57,988 INFO L173 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-10-28 09:17:57,988 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-28 09:17:57,994 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-28 09:17:58,027 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.10 09:17:58 BoogieIcfgContainer [2020-10-28 09:17:58,028 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-28 09:17:58,034 INFO L168 Benchmark]: Toolchain (without parser) took 4309.50 ms. Allocated memory was 151.0 MB in the beginning and 194.0 MB in the end (delta: 43.0 MB). Free memory was 127.2 MB in the beginning and 135.4 MB in the end (delta: -8.2 MB). Peak memory consumption was 36.1 MB. Max. memory is 8.0 GB. [2020-10-28 09:17:58,036 INFO L168 Benchmark]: CDTParser took 0.43 ms. Allocated memory is still 151.0 MB. Free memory was 123.6 MB in the beginning and 123.5 MB in the end (delta: 101.6 kB). There was no memory consumed. Max. memory is 8.0 GB. [2020-10-28 09:17:58,039 INFO L168 Benchmark]: CACSL2BoogieTranslator took 381.21 ms. Allocated memory is still 151.0 MB. Free memory was 126.7 MB in the beginning and 116.8 MB in the end (delta: 9.9 MB). Peak memory consumption was 9.4 MB. Max. memory is 8.0 GB. [2020-10-28 09:17:58,040 INFO L168 Benchmark]: Boogie Preprocessor took 49.54 ms. Allocated memory is still 151.0 MB. Free memory was 116.7 MB in the beginning and 115.0 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2020-10-28 09:17:58,041 INFO L168 Benchmark]: RCFGBuilder took 684.82 ms. Allocated memory is still 151.0 MB. Free memory was 115.0 MB in the beginning and 131.3 MB in the end (delta: -16.2 MB). Peak memory consumption was 15.6 MB. Max. memory is 8.0 GB. [2020-10-28 09:17:58,046 INFO L168 Benchmark]: TraceAbstraction took 3178.85 ms. Allocated memory was 151.0 MB in the beginning and 194.0 MB in the end (delta: 43.0 MB). Free memory was 130.7 MB in the beginning and 135.4 MB in the end (delta: -4.7 MB). Peak memory consumption was 39.4 MB. Max. memory is 8.0 GB. [2020-10-28 09:17:58,060 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.43 ms. Allocated memory is still 151.0 MB. Free memory was 123.6 MB in the beginning and 123.5 MB in the end (delta: 101.6 kB). There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 381.21 ms. Allocated memory is still 151.0 MB. Free memory was 126.7 MB in the beginning and 116.8 MB in the end (delta: 9.9 MB). Peak memory consumption was 9.4 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 49.54 ms. Allocated memory is still 151.0 MB. Free memory was 116.7 MB in the beginning and 115.0 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 684.82 ms. Allocated memory is still 151.0 MB. Free memory was 115.0 MB in the beginning and 131.3 MB in the end (delta: -16.2 MB). Peak memory consumption was 15.6 MB. Max. memory is 8.0 GB. * TraceAbstraction took 3178.85 ms. Allocated memory was 151.0 MB in the beginning and 194.0 MB in the end (delta: 43.0 MB). Free memory was 130.7 MB in the beginning and 135.4 MB in the end (delta: -4.7 MB). Peak memory consumption was 39.4 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 10]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L19] int N; [L23] N = __VERIFIER_nondet_int() [L24] COND FALSE !(N <= 0) [L25] CALL assume_abort_if_not(N <= 2147483647/sizeof(int)) [L13] COND FALSE !(!cond) [L25] RET assume_abort_if_not(N <= 2147483647/sizeof(int)) [L27] int i; [L28] long long sum[1]; [L29] int *a = malloc(sizeof(int)*N); [L31] sum[0] = N [L32] i=0 [L32] COND TRUE i