/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 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=SMALLESTAMONGWIDE --traceabstraction.additional.smt.options tolerance=0.2 --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 -i ../../../trunk/examples/svcomp/array-fpi/s1iff.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-14 18:12:40,880 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-14 18:12:40,883 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-14 18:12:40,923 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-14 18:12:40,924 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-14 18:12:40,932 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-14 18:12:40,935 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-14 18:12:40,938 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-14 18:12:40,940 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-14 18:12:40,942 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-14 18:12:40,942 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-14 18:12:40,943 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-14 18:12:40,943 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-14 18:12:40,947 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-14 18:12:40,948 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-14 18:12:40,950 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-14 18:12:40,952 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-14 18:12:40,953 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-14 18:12:40,954 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-14 18:12:40,961 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-14 18:12:40,965 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-14 18:12:40,966 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-14 18:12:40,967 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-14 18:12:40,968 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-14 18:12:40,979 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-14 18:12:40,979 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-14 18:12:40,980 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-14 18:12:40,985 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-14 18:12:40,985 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-14 18:12:40,986 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-14 18:12:40,987 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-14 18:12:40,987 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-14 18:12:40,988 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-14 18:12:40,989 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-14 18:12:40,991 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-14 18:12:40,992 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-14 18:12:40,993 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-14 18:12:40,993 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-14 18:12:40,993 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-14 18:12:40,994 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-14 18:12:40,995 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-14 18:12:40,996 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 [2020-10-14 18:12:41,039 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-14 18:12:41,039 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-14 18:12:41,042 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-14 18:12:41,042 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-14 18:12:41,042 INFO L138 SettingsManager]: * Use SBE=true [2020-10-14 18:12:41,042 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-14 18:12:41,043 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-14 18:12:41,043 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-14 18:12:41,043 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-14 18:12:41,043 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-14 18:12:41,044 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-14 18:12:41,045 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-14 18:12:41,045 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-14 18:12:41,046 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-14 18:12:41,046 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-14 18:12:41,046 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-14 18:12:41,046 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-14 18:12:41,046 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-14 18:12:41,047 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-14 18:12:41,047 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-14 18:12:41,047 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-14 18:12:41,047 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-14 18:12:41,047 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-14 18:12:41,048 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-14 18:12:41,048 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-14 18:12:41,048 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-14 18:12:41,048 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-14 18:12:41,048 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-14 18:12:41,049 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-14 18:12:41,049 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 -> 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=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;unknown-allowed=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=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;unknown-allowed=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=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;unknown-allowed=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=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;unknown-allowed=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=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;unknown-allowed=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=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;unknown-allowed=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=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;unknown-allowed=true; [2020-10-14 18:12:41,354 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-14 18:12:41,367 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-14 18:12:41,370 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-14 18:12:41,372 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-14 18:12:41,372 INFO L275 PluginConnector]: CDTParser initialized [2020-10-14 18:12:41,373 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/array-fpi/s1iff.c [2020-10-14 18:12:41,436 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/06eeadfb6/4ee787aac0f04dae95cdda58dad02db6/FLAGaacaa61ef [2020-10-14 18:12:41,890 INFO L306 CDTParser]: Found 1 translation units. [2020-10-14 18:12:41,891 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/array-fpi/s1iff.c [2020-10-14 18:12:41,898 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/06eeadfb6/4ee787aac0f04dae95cdda58dad02db6/FLAGaacaa61ef [2020-10-14 18:12:42,265 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/06eeadfb6/4ee787aac0f04dae95cdda58dad02db6 [2020-10-14 18:12:42,274 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-14 18:12:42,277 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-14 18:12:42,278 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-14 18:12:42,278 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-14 18:12:42,282 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-14 18:12:42,283 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 06:12:42" (1/1) ... [2020-10-14 18:12:42,286 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@11f89d0d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 06:12:42, skipping insertion in model container [2020-10-14 18:12:42,287 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 06:12:42" (1/1) ... [2020-10-14 18:12:42,295 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-14 18:12:42,316 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-14 18:12:42,554 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-14 18:12:42,565 INFO L203 MainTranslator]: Completed pre-run [2020-10-14 18:12:42,588 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-14 18:12:42,609 INFO L208 MainTranslator]: Completed translation [2020-10-14 18:12:42,609 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 06:12:42 WrapperNode [2020-10-14 18:12:42,609 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-14 18:12:42,610 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-14 18:12:42,610 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-14 18:12:42,611 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-14 18:12:42,751 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 06:12:42" (1/1) ... [2020-10-14 18:12:42,752 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 06:12:42" (1/1) ... [2020-10-14 18:12:42,765 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 06:12:42" (1/1) ... [2020-10-14 18:12:42,765 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 06:12:42" (1/1) ... [2020-10-14 18:12:42,782 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 06:12:42" (1/1) ... [2020-10-14 18:12:42,788 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 06:12:42" (1/1) ... [2020-10-14 18:12:42,789 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 06:12:42" (1/1) ... [2020-10-14 18:12:42,792 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-14 18:12:42,792 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-14 18:12:42,793 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-14 18:12:42,793 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-14 18:12:42,794 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 06:12:42" (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 [2020-10-14 18:12:42,859 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-14 18:12:42,859 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-14 18:12:42,859 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-10-14 18:12:42,860 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-10-14 18:12:42,860 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-14 18:12:42,860 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-14 18:12:42,860 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-14 18:12:42,860 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-10-14 18:12:42,860 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-10-14 18:12:42,861 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-14 18:12:42,861 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-10-14 18:12:42,861 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-14 18:12:42,861 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-14 18:12:42,861 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-10-14 18:12:42,861 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-14 18:12:42,862 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-14 18:12:42,862 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-14 18:12:42,862 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-14 18:12:42,862 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-14 18:12:43,204 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-14 18:12:43,205 INFO L295 CfgBuilder]: Removed 2 assume(true) statements. [2020-10-14 18:12:43,209 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 06:12:43 BoogieIcfgContainer [2020-10-14 18:12:43,209 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-14 18:12:43,210 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-14 18:12:43,211 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-14 18:12:43,215 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-14 18:12:43,215 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.10 06:12:42" (1/3) ... [2020-10-14 18:12:43,216 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@b8028c6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 06:12:43, skipping insertion in model container [2020-10-14 18:12:43,217 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 06:12:42" (2/3) ... [2020-10-14 18:12:43,217 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@b8028c6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 06:12:43, skipping insertion in model container [2020-10-14 18:12:43,217 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 06:12:43" (3/3) ... [2020-10-14 18:12:43,220 INFO L109 eAbstractionObserver]: Analyzing ICFG s1iff.c [2020-10-14 18:12:43,232 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-14 18:12:43,240 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-14 18:12:43,255 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-14 18:12:43,281 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-14 18:12:43,281 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-14 18:12:43,282 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-14 18:12:43,282 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-14 18:12:43,282 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-14 18:12:43,282 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-14 18:12:43,282 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-14 18:12:43,283 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-14 18:12:43,303 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states. [2020-10-14 18:12:43,309 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-10-14 18:12:43,309 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 18:12:43,310 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 18:12:43,311 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 18:12:43,316 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 18:12:43,316 INFO L82 PathProgramCache]: Analyzing trace with hash -432131487, now seen corresponding path program 1 times [2020-10-14 18:12:43,325 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 18:12:43,326 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1626090204] [2020-10-14 18:12:43,326 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 18:12:43,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 18:12:43,483 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:12:43,527 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:12:43,613 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:12:44,052 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 18:12:44,052 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 31 [2020-10-14 18:12:44,052 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 18:12:44,053 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 590 [2020-10-14 18:12:44,056 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 18:12:44,056 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 18:12:44,057 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-14 18:12:44,057 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-14 18:12:44,057 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-14 18:12:44,058 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-10-14 18:12:44,132 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 18:12:44,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 18:12:44,137 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:12:44,140 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 18:12:44,141 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 18:12:44,141 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 18:12:44,141 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 18:12:44,142 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 18:12:44,142 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 18:12:44,143 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 18:12:44,143 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 18:12:44,143 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 18:12:44,144 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 18:12:44,148 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-10-14 18:12:44,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 18:12:44,152 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:12:44,153 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:12:44,158 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 18:12:44,158 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 18:12:44,158 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 18:12:44,158 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 18:12:44,159 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 18:12:44,159 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 18:12:44,159 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 18:12:44,159 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 18:12:44,160 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 18:12:44,160 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 18:12:44,166 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 18:12:44,167 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1626090204] [2020-10-14 18:12:44,169 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 18:12:44,170 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-14 18:12:44,171 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1474856110] [2020-10-14 18:12:44,176 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-14 18:12:44,177 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 18:12:44,191 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-14 18:12:44,192 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-14 18:12:44,194 INFO L87 Difference]: Start difference. First operand 32 states. Second operand 5 states. [2020-10-14 18:12:44,396 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 18:12:44,396 INFO L93 Difference]: Finished difference Result 60 states and 76 transitions. [2020-10-14 18:12:44,397 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-14 18:12:44,399 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 21 [2020-10-14 18:12:44,399 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 18:12:44,408 INFO L225 Difference]: With dead ends: 60 [2020-10-14 18:12:44,408 INFO L226 Difference]: Without dead ends: 27 [2020-10-14 18:12:44,412 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 [2020-10-14 18:12:44,433 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2020-10-14 18:12:44,456 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 27. [2020-10-14 18:12:44,457 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2020-10-14 18:12:44,459 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 29 transitions. [2020-10-14 18:12:44,461 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 29 transitions. Word has length 21 [2020-10-14 18:12:44,461 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 18:12:44,462 INFO L479 AbstractCegarLoop]: Abstraction has 27 states and 29 transitions. [2020-10-14 18:12:44,462 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-14 18:12:44,462 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 29 transitions. [2020-10-14 18:12:44,463 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2020-10-14 18:12:44,463 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 18:12:44,464 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] [2020-10-14 18:12:44,464 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-14 18:12:44,464 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 18:12:44,465 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 18:12:44,465 INFO L82 PathProgramCache]: Analyzing trace with hash -445719797, now seen corresponding path program 1 times [2020-10-14 18:12:44,465 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 18:12:44,466 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1970101442] [2020-10-14 18:12:44,466 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 18:12:44,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 18:12:44,519 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:12:44,655 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:12:45,052 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:12:45,538 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 18:12:45,539 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 36 [2020-10-14 18:12:45,539 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 18:12:45,540 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1031 [2020-10-14 18:12:45,540 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 18:12:45,540 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 18:12:45,540 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-14 18:12:45,541 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 20 [2020-10-14 18:12:45,550 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-14 18:12:45,551 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 10 [2020-10-14 18:12:45,802 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 18:12:45,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 18:12:45,806 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:12:45,808 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 18:12:45,808 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 18:12:45,809 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 18:12:45,809 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 18:12:45,809 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 18:12:45,809 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 18:12:45,810 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 18:12:45,810 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 18:12:45,810 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 18:12:45,810 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 18:12:45,812 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-10-14 18:12:45,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 18:12:45,814 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:12:45,816 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 18:12:45,816 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 18:12:45,816 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 18:12:45,816 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 18:12:45,817 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 18:12:45,817 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 18:12:45,817 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 18:12:45,817 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 18:12:45,817 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 18:12:45,818 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 18:12:45,822 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 18:12:45,823 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1970101442] [2020-10-14 18:12:45,823 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 18:12:45,823 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2020-10-14 18:12:45,824 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2097412096] [2020-10-14 18:12:45,826 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-14 18:12:45,826 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 18:12:45,826 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-14 18:12:45,827 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=110, Unknown=0, NotChecked=0, Total=132 [2020-10-14 18:12:45,827 INFO L87 Difference]: Start difference. First operand 27 states and 29 transitions. Second operand 12 states. [2020-10-14 18:12:46,229 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 18:12:46,230 INFO L93 Difference]: Finished difference Result 42 states and 47 transitions. [2020-10-14 18:12:46,230 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-14 18:12:46,230 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 26 [2020-10-14 18:12:46,231 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 18:12:46,234 INFO L225 Difference]: With dead ends: 42 [2020-10-14 18:12:46,234 INFO L226 Difference]: Without dead ends: 36 [2020-10-14 18:12:46,235 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=63, Invalid=279, Unknown=0, NotChecked=0, Total=342 [2020-10-14 18:12:46,236 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2020-10-14 18:12:46,242 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 33. [2020-10-14 18:12:46,242 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33 states. [2020-10-14 18:12:46,243 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 37 transitions. [2020-10-14 18:12:46,244 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 37 transitions. Word has length 26 [2020-10-14 18:12:46,244 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 18:12:46,244 INFO L479 AbstractCegarLoop]: Abstraction has 33 states and 37 transitions. [2020-10-14 18:12:46,244 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-14 18:12:46,244 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 37 transitions. [2020-10-14 18:12:46,245 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2020-10-14 18:12:46,245 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 18:12:46,246 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] [2020-10-14 18:12:46,246 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-14 18:12:46,246 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 18:12:46,246 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 18:12:46,247 INFO L82 PathProgramCache]: Analyzing trace with hash -1255066423, now seen corresponding path program 1 times [2020-10-14 18:12:46,247 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 18:12:46,247 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1884214053] [2020-10-14 18:12:46,247 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 18:12:46,258 ERROR L271 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-10-14 18:12:46,258 WARN L168 FreeRefinementEngine]: Strategy FIXED_PREFERENCES was unsuccessful and could not determine trace feasibility [2020-10-14 18:12:46,259 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-10-14 18:12:46,263 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-14 18:12:46,281 WARN L231 ceAbstractionStarter]: Unable to decide correctness. Please check the following counterexample manually. [2020-10-14 18:12:46,281 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.10 06:12:46 BoogieIcfgContainer [2020-10-14 18:12:46,281 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-14 18:12:46,284 INFO L168 Benchmark]: Toolchain (without parser) took 4007.07 ms. Allocated memory was 147.8 MB in the beginning and 240.6 MB in the end (delta: 92.8 MB). Free memory was 104.2 MB in the beginning and 111.1 MB in the end (delta: -6.9 MB). Peak memory consumption was 85.9 MB. Max. memory is 7.1 GB. [2020-10-14 18:12:46,285 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 147.8 MB. Free memory was 122.4 MB in the beginning and 122.0 MB in the end (delta: 419.7 kB). Peak memory consumption was 419.7 kB. Max. memory is 7.1 GB. [2020-10-14 18:12:46,286 INFO L168 Benchmark]: CACSL2BoogieTranslator took 332.14 ms. Allocated memory is still 147.8 MB. Free memory was 104.2 MB in the beginning and 93.6 MB in the end (delta: 10.6 MB). Peak memory consumption was 10.6 MB. Max. memory is 7.1 GB. [2020-10-14 18:12:46,287 INFO L168 Benchmark]: Boogie Preprocessor took 181.79 ms. Allocated memory was 147.8 MB in the beginning and 206.6 MB in the end (delta: 58.7 MB). Free memory was 93.6 MB in the beginning and 184.0 MB in the end (delta: -90.4 MB). Peak memory consumption was 10.0 MB. Max. memory is 7.1 GB. [2020-10-14 18:12:46,288 INFO L168 Benchmark]: RCFGBuilder took 416.79 ms. Allocated memory is still 206.6 MB. Free memory was 184.0 MB in the beginning and 167.0 MB in the end (delta: 17.0 MB). Peak memory consumption was 17.0 MB. Max. memory is 7.1 GB. [2020-10-14 18:12:46,289 INFO L168 Benchmark]: TraceAbstraction took 3070.89 ms. Allocated memory was 206.6 MB in the beginning and 240.6 MB in the end (delta: 34.1 MB). Free memory was 166.0 MB in the beginning and 111.1 MB in the end (delta: 55.0 MB). Peak memory consumption was 89.0 MB. Max. memory is 7.1 GB. [2020-10-14 18:12:46,293 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 147.8 MB. Free memory was 122.4 MB in the beginning and 122.0 MB in the end (delta: 419.7 kB). Peak memory consumption was 419.7 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 332.14 ms. Allocated memory is still 147.8 MB. Free memory was 104.2 MB in the beginning and 93.6 MB in the end (delta: 10.6 MB). Peak memory consumption was 10.6 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 181.79 ms. Allocated memory was 147.8 MB in the beginning and 206.6 MB in the end (delta: 58.7 MB). Free memory was 93.6 MB in the beginning and 184.0 MB in the end (delta: -90.4 MB). Peak memory consumption was 10.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 416.79 ms. Allocated memory is still 206.6 MB. Free memory was 184.0 MB in the beginning and 167.0 MB in the end (delta: 17.0 MB). Peak memory consumption was 17.0 MB. Max. memory is 7.1 GB. * TraceAbstraction took 3070.89 ms. Allocated memory was 206.6 MB in the beginning and 240.6 MB in the end (delta: 34.1 MB). Free memory was 166.0 MB in the beginning and 111.1 MB in the end (delta: 55.0 MB). Peak memory consumption was 89.0 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 13]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: unable to decide satisfiability of path constraint. Possible FailurePath: [L17] int N; [L21] N = __VERIFIER_nondet_int() [L22] COND FALSE !(N <= 0) [L23] CALL assume_abort_if_not(N <= 2147483647/sizeof(int)) [L11] COND FALSE !(!cond) [L23] RET assume_abort_if_not(N <= 2147483647/sizeof(int)) [L25] int i; [L26] long long sum[1]; [L27] int *a = malloc(sizeof(int)*N); [L29] sum[0] = 1 [L30] i=0 [L30] COND TRUE i