/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=WIDESTAMONGSMALL --traceabstraction.additional.smt.options tolerance=0.4 --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-patterns/array1_pattern.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-14 00:03:32,906 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-14 00:03:32,908 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-14 00:03:32,942 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-14 00:03:32,942 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-14 00:03:32,943 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-14 00:03:32,945 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-14 00:03:32,946 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-14 00:03:32,948 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-14 00:03:32,949 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-14 00:03:32,950 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-14 00:03:32,951 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-14 00:03:32,951 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-14 00:03:32,952 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-14 00:03:32,953 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-14 00:03:32,954 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-14 00:03:32,955 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-14 00:03:32,956 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-14 00:03:32,958 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-14 00:03:32,960 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-14 00:03:32,961 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-14 00:03:32,962 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-14 00:03:32,964 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-14 00:03:32,964 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-14 00:03:32,967 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-14 00:03:32,967 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-14 00:03:32,967 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-14 00:03:32,968 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-14 00:03:32,969 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-14 00:03:32,970 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-14 00:03:32,970 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-14 00:03:32,971 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-14 00:03:32,971 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-14 00:03:32,972 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-14 00:03:32,973 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-14 00:03:32,973 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-14 00:03:32,974 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-14 00:03:32,974 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-14 00:03:32,974 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-14 00:03:32,975 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-14 00:03:32,976 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-14 00:03:32,977 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 00:03:33,000 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-14 00:03:33,000 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-14 00:03:33,001 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-14 00:03:33,001 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-14 00:03:33,002 INFO L138 SettingsManager]: * Use SBE=true [2020-10-14 00:03:33,002 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-14 00:03:33,002 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-14 00:03:33,002 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-14 00:03:33,002 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-14 00:03:33,003 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-14 00:03:33,003 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-14 00:03:33,003 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-14 00:03:33,003 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-14 00:03:33,003 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-14 00:03:33,004 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-14 00:03:33,004 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-14 00:03:33,004 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-14 00:03:33,004 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-14 00:03:33,004 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-14 00:03:33,005 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-14 00:03:33,005 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-14 00:03:33,005 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-14 00:03:33,005 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-14 00:03:33,005 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-14 00:03:33,006 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-14 00:03:33,006 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-14 00:03:33,006 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-14 00:03:33,006 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-14 00:03:33,006 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-14 00:03:33,007 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=WIDESTAMONGSMALL;tolerance=0.4;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=WIDESTAMONGSMALL;tolerance=0.4;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=WIDESTAMONGSMALL;tolerance=0.4;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=WIDESTAMONGSMALL;tolerance=0.4;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=WIDESTAMONGSMALL;tolerance=0.4;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=WIDESTAMONGSMALL;tolerance=0.4;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=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=true; [2020-10-14 00:03:33,332 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-14 00:03:33,343 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-14 00:03:33,346 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-14 00:03:33,348 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-14 00:03:33,348 INFO L275 PluginConnector]: CDTParser initialized [2020-10-14 00:03:33,349 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/array-patterns/array1_pattern.c [2020-10-14 00:03:33,406 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/6540e3d60/3ee1c5082a6c4b198c602260eeb4951a/FLAG78658edfd [2020-10-14 00:03:33,837 INFO L306 CDTParser]: Found 1 translation units. [2020-10-14 00:03:33,838 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/array-patterns/array1_pattern.c [2020-10-14 00:03:33,846 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/6540e3d60/3ee1c5082a6c4b198c602260eeb4951a/FLAG78658edfd [2020-10-14 00:03:34,197 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/6540e3d60/3ee1c5082a6c4b198c602260eeb4951a [2020-10-14 00:03:34,208 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-14 00:03:34,210 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-14 00:03:34,211 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-14 00:03:34,211 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-14 00:03:34,215 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-14 00:03:34,216 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 12:03:34" (1/1) ... [2020-10-14 00:03:34,220 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@533c9030 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 12:03:34, skipping insertion in model container [2020-10-14 00:03:34,220 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 12:03:34" (1/1) ... [2020-10-14 00:03:34,228 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-14 00:03:34,248 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-14 00:03:34,439 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-14 00:03:34,443 INFO L203 MainTranslator]: Completed pre-run [2020-10-14 00:03:34,470 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-14 00:03:34,581 INFO L208 MainTranslator]: Completed translation [2020-10-14 00:03:34,582 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 12:03:34 WrapperNode [2020-10-14 00:03:34,582 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-14 00:03:34,583 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-14 00:03:34,583 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-14 00:03:34,583 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-14 00:03:34,598 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 12:03:34" (1/1) ... [2020-10-14 00:03:34,600 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 12:03:34" (1/1) ... [2020-10-14 00:03:34,618 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 12:03:34" (1/1) ... [2020-10-14 00:03:34,619 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 12:03:34" (1/1) ... [2020-10-14 00:03:34,636 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 12:03:34" (1/1) ... [2020-10-14 00:03:34,646 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 12:03:34" (1/1) ... [2020-10-14 00:03:34,654 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 12:03:34" (1/1) ... [2020-10-14 00:03:34,657 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-14 00:03:34,658 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-14 00:03:34,658 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-14 00:03:34,658 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-14 00:03:34,659 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 12:03:34" (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 00:03:34,722 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-14 00:03:34,723 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-14 00:03:34,723 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-10-14 00:03:34,723 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-10-14 00:03:34,723 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-14 00:03:34,723 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-14 00:03:34,724 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-14 00:03:34,725 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-10-14 00:03:34,725 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-10-14 00:03:34,725 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-14 00:03:34,725 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_short [2020-10-14 00:03:34,725 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-14 00:03:34,726 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-14 00:03:34,726 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-14 00:03:34,726 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-14 00:03:34,726 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-14 00:03:34,726 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-14 00:03:34,726 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-14 00:03:35,018 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-14 00:03:35,018 INFO L295 CfgBuilder]: Removed 3 assume(true) statements. [2020-10-14 00:03:35,023 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 12:03:35 BoogieIcfgContainer [2020-10-14 00:03:35,024 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-14 00:03:35,025 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-14 00:03:35,025 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-14 00:03:35,028 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-14 00:03:35,029 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.10 12:03:34" (1/3) ... [2020-10-14 00:03:35,029 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@58bb6e22 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 12:03:35, skipping insertion in model container [2020-10-14 00:03:35,030 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 12:03:34" (2/3) ... [2020-10-14 00:03:35,030 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@58bb6e22 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 12:03:35, skipping insertion in model container [2020-10-14 00:03:35,030 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 12:03:35" (3/3) ... [2020-10-14 00:03:35,032 INFO L109 eAbstractionObserver]: Analyzing ICFG array1_pattern.c [2020-10-14 00:03:35,044 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-14 00:03:35,052 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-14 00:03:35,067 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-14 00:03:35,095 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-14 00:03:35,096 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-14 00:03:35,096 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-14 00:03:35,096 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-14 00:03:35,096 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-14 00:03:35,096 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-14 00:03:35,097 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-14 00:03:35,097 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-14 00:03:35,132 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states. [2020-10-14 00:03:35,138 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2020-10-14 00:03:35,138 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 00:03:35,139 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] [2020-10-14 00:03:35,139 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 00:03:35,145 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 00:03:35,146 INFO L82 PathProgramCache]: Analyzing trace with hash 1226662526, now seen corresponding path program 1 times [2020-10-14 00:03:35,154 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 00:03:35,154 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1438581871] [2020-10-14 00:03:35,155 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 00:03:35,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:03:35,294 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:03:35,338 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:03:35,499 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:03:35,706 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:03:35,706 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 30 [2020-10-14 00:03:35,707 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 00:03:35,707 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 439 [2020-10-14 00:03:35,710 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:03:35,710 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:03:35,711 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 00:03:35,711 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21 [2020-10-14 00:03:35,711 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 00:03:35,712 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-10-14 00:03:35,776 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 00:03:35,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:03:35,782 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:03:35,788 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:03:35,788 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 00:03:35,789 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:03:35,789 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-14 00:03:35,789 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:03:35,790 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:03:35,790 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 00:03:35,791 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:03:35,791 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 00:03:35,791 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-14 00:03:35,797 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 00:03:35,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:03:35,800 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:03:35,802 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:03:35,805 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:03:35,805 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:03:35,806 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 00:03:35,806 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 00:03:35,806 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:03:35,807 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:03:35,807 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 00:03:35,807 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:03:35,808 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 00:03:35,808 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 00:03:35,815 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 00:03:35,825 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1438581871] [2020-10-14 00:03:35,827 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 00:03:35,828 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-14 00:03:35,830 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1984086246] [2020-10-14 00:03:35,837 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-14 00:03:35,837 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 00:03:35,852 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-14 00:03:35,853 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-14 00:03:35,856 INFO L87 Difference]: Start difference. First operand 33 states. Second operand 3 states. [2020-10-14 00:03:36,022 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 00:03:36,023 INFO L93 Difference]: Finished difference Result 59 states and 79 transitions. [2020-10-14 00:03:36,024 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-14 00:03:36,026 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 20 [2020-10-14 00:03:36,027 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 00:03:36,036 INFO L225 Difference]: With dead ends: 59 [2020-10-14 00:03:36,037 INFO L226 Difference]: Without dead ends: 26 [2020-10-14 00:03:36,041 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-14 00:03:36,057 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2020-10-14 00:03:36,078 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 26. [2020-10-14 00:03:36,080 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26 states. [2020-10-14 00:03:36,081 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 29 transitions. [2020-10-14 00:03:36,083 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 29 transitions. Word has length 20 [2020-10-14 00:03:36,083 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 00:03:36,083 INFO L479 AbstractCegarLoop]: Abstraction has 26 states and 29 transitions. [2020-10-14 00:03:36,083 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-14 00:03:36,084 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 29 transitions. [2020-10-14 00:03:36,086 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2020-10-14 00:03:36,086 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 00:03:36,086 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 00:03:36,087 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-14 00:03:36,087 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 00:03:36,087 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 00:03:36,087 INFO L82 PathProgramCache]: Analyzing trace with hash -452082213, now seen corresponding path program 1 times [2020-10-14 00:03:36,088 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 00:03:36,088 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1152957160] [2020-10-14 00:03:36,088 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 00:03:36,106 ERROR L271 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-10-14 00:03:36,107 WARN L168 FreeRefinementEngine]: Strategy FIXED_PREFERENCES was unsuccessful and could not determine trace feasibility [2020-10-14 00:03:36,107 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-10-14 00:03:36,112 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-14 00:03:36,128 WARN L231 ceAbstractionStarter]: Unable to decide correctness. Please check the following counterexample manually. [2020-10-14 00:03:36,128 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.10 12:03:36 BoogieIcfgContainer [2020-10-14 00:03:36,128 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-14 00:03:36,131 INFO L168 Benchmark]: Toolchain (without parser) took 1920.92 ms. Allocated memory was 147.8 MB in the beginning and 204.5 MB in the end (delta: 56.6 MB). Free memory was 104.1 MB in the beginning and 112.1 MB in the end (delta: -8.0 MB). Peak memory consumption was 48.6 MB. Max. memory is 7.1 GB. [2020-10-14 00:03:36,132 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: 419.8 kB). Peak memory consumption was 419.8 kB. Max. memory is 7.1 GB. [2020-10-14 00:03:36,134 INFO L168 Benchmark]: CACSL2BoogieTranslator took 371.25 ms. Allocated memory was 147.8 MB in the beginning and 204.5 MB in the end (delta: 56.6 MB). Free memory was 104.1 MB in the beginning and 183.1 MB in the end (delta: -79.1 MB). Peak memory consumption was 19.9 MB. Max. memory is 7.1 GB. [2020-10-14 00:03:36,134 INFO L168 Benchmark]: Boogie Preprocessor took 74.50 ms. Allocated memory is still 204.5 MB. Free memory was 183.1 MB in the beginning and 180.9 MB in the end (delta: 2.3 MB). Peak memory consumption was 2.3 MB. Max. memory is 7.1 GB. [2020-10-14 00:03:36,135 INFO L168 Benchmark]: RCFGBuilder took 365.96 ms. Allocated memory is still 204.5 MB. Free memory was 180.9 MB in the beginning and 164.3 MB in the end (delta: 16.6 MB). Peak memory consumption was 16.6 MB. Max. memory is 7.1 GB. [2020-10-14 00:03:36,136 INFO L168 Benchmark]: TraceAbstraction took 1103.56 ms. Allocated memory is still 204.5 MB. Free memory was 163.3 MB in the beginning and 112.1 MB in the end (delta: 51.2 MB). Peak memory consumption was 51.2 MB. Max. memory is 7.1 GB. [2020-10-14 00:03:36,140 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: 419.8 kB). Peak memory consumption was 419.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 371.25 ms. Allocated memory was 147.8 MB in the beginning and 204.5 MB in the end (delta: 56.6 MB). Free memory was 104.1 MB in the beginning and 183.1 MB in the end (delta: -79.1 MB). Peak memory consumption was 19.9 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 74.50 ms. Allocated memory is still 204.5 MB. Free memory was 183.1 MB in the beginning and 180.9 MB in the end (delta: 2.3 MB). Peak memory consumption was 2.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 365.96 ms. Allocated memory is still 204.5 MB. Free memory was 180.9 MB in the beginning and 164.3 MB in the end (delta: 16.6 MB). Peak memory consumption was 16.6 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1103.56 ms. Allocated memory is still 204.5 MB. Free memory was 163.3 MB in the beginning and 112.1 MB in the end (delta: 51.2 MB). Peak memory consumption was 51.2 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 28]: 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: [L32] signed long long ARR_SIZE ; [L36] ARR_SIZE = __VERIFIER_nondet_short() [L37] CALL assume_abort_if_not(ARR_SIZE > 0) [L26] COND FALSE !(!cond) [L37] RET assume_abort_if_not(ARR_SIZE > 0) [L39] int array1[ARR_SIZE] ; [L40] int array2[ARR_SIZE] ; [L41] int count = 0, num = -1 ; [L42] int temp ; [L43] short index ; [L44] signed long long sum = 0 ; [L46] count=0 [L46] COND FALSE !(count=0 && index < ARR_SIZE) [L26] COND FALSE !(!cond) [L56] RET assume_abort_if_not(index>=0 && index < ARR_SIZE) [L58] array1[index] = num*(num*index) [L59] array2[ARR_SIZE-1-index] = num * index [L61] temp = __VERIFIER_nondet_int() [L62] COND TRUE temp == 0 [L65] count=0 [L65] COND FALSE !(count