/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=SHALLOWEST --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-multidimensional/copy-partial-3-u.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-0f64333 [2020-10-26 19:50:13,747 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-26 19:50:13,750 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-26 19:50:13,787 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-26 19:50:13,787 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-26 19:50:13,789 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-26 19:50:13,791 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-26 19:50:13,794 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-26 19:50:13,796 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-26 19:50:13,797 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-26 19:50:13,799 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-26 19:50:13,800 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-26 19:50:13,801 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-26 19:50:13,802 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-26 19:50:13,803 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-26 19:50:13,805 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-26 19:50:13,806 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-26 19:50:13,807 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-26 19:50:13,809 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-26 19:50:13,812 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-26 19:50:13,814 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-26 19:50:13,815 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-26 19:50:13,817 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-26 19:50:13,818 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-26 19:50:13,834 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-26 19:50:13,834 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-26 19:50:13,835 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-26 19:50:13,836 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-26 19:50:13,836 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-26 19:50:13,841 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-26 19:50:13,841 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-26 19:50:13,842 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-26 19:50:13,843 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-26 19:50:13,844 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-26 19:50:13,845 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-26 19:50:13,845 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-26 19:50:13,846 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-26 19:50:13,846 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-26 19:50:13,846 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-26 19:50:13,847 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-26 19:50:13,848 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-26 19:50:13,849 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 [2020-10-26 19:50:13,911 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-26 19:50:13,911 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-26 19:50:13,913 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-26 19:50:13,914 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-26 19:50:13,914 INFO L138 SettingsManager]: * Use SBE=true [2020-10-26 19:50:13,914 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-26 19:50:13,915 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-26 19:50:13,915 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-26 19:50:13,915 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-26 19:50:13,915 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-26 19:50:13,916 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-26 19:50:13,917 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-26 19:50:13,917 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-26 19:50:13,917 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-26 19:50:13,917 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-26 19:50:13,917 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-26 19:50:13,918 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-26 19:50:13,918 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-26 19:50:13,918 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-26 19:50:13,919 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-26 19:50:13,919 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-26 19:50:13,919 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-26 19:50:13,919 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-26 19:50:13,919 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-26 19:50:13,920 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-26 19:50:13,920 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-26 19:50:13,920 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-26 19:50:13,920 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-26 19:50:13,920 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-26 19:50:13,920 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SHALLOWEST;log-additional-information=true;unknown-allowed=true; [2020-10-26 19:50:14,324 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-26 19:50:14,375 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-26 19:50:14,378 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-26 19:50:14,379 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-26 19:50:14,382 INFO L275 PluginConnector]: CDTParser initialized [2020-10-26 19:50:14,383 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/array-multidimensional/copy-partial-3-u.c [2020-10-26 19:50:14,486 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/cb7323fe1/14301701eb574857be2e0a3d31dc89a5/FLAG30348764e [2020-10-26 19:50:15,195 INFO L306 CDTParser]: Found 1 translation units. [2020-10-26 19:50:15,196 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/array-multidimensional/copy-partial-3-u.c [2020-10-26 19:50:15,205 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/cb7323fe1/14301701eb574857be2e0a3d31dc89a5/FLAG30348764e [2020-10-26 19:50:15,575 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/cb7323fe1/14301701eb574857be2e0a3d31dc89a5 [2020-10-26 19:50:15,580 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-26 19:50:15,586 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-26 19:50:15,590 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-26 19:50:15,590 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-26 19:50:15,594 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-26 19:50:15,595 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 07:50:15" (1/1) ... [2020-10-26 19:50:15,600 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@608a81e6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 07:50:15, skipping insertion in model container [2020-10-26 19:50:15,601 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 07:50:15" (1/1) ... [2020-10-26 19:50:15,610 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-26 19:50:15,636 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-26 19:50:15,868 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-26 19:50:15,889 INFO L203 MainTranslator]: Completed pre-run [2020-10-26 19:50:15,959 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-26 19:50:15,995 INFO L208 MainTranslator]: Completed translation [2020-10-26 19:50:15,996 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 07:50:15 WrapperNode [2020-10-26 19:50:15,997 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-26 19:50:15,998 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-26 19:50:15,999 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-26 19:50:16,000 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-26 19:50:16,017 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 07:50:15" (1/1) ... [2020-10-26 19:50:16,020 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 07:50:15" (1/1) ... [2020-10-26 19:50:16,039 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 07:50:15" (1/1) ... [2020-10-26 19:50:16,039 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 07:50:15" (1/1) ... [2020-10-26 19:50:16,068 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 07:50:15" (1/1) ... [2020-10-26 19:50:16,082 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 07:50:15" (1/1) ... [2020-10-26 19:50:16,086 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 07:50:15" (1/1) ... [2020-10-26 19:50:16,097 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-26 19:50:16,099 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-26 19:50:16,099 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-26 19:50:16,101 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-26 19:50:16,102 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 07:50:15" (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 [2020-10-26 19:50:16,209 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-26 19:50:16,209 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-26 19:50:16,209 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-26 19:50:16,209 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-10-26 19:50:16,210 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-10-26 19:50:16,210 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-26 19:50:16,210 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-26 19:50:16,210 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-26 19:50:16,211 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-26 19:50:16,211 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-26 19:50:16,211 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-10-26 19:50:16,211 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-10-26 19:50:16,211 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-26 19:50:16,212 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-26 19:50:16,212 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-26 19:50:16,212 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-26 19:50:16,212 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-26 19:50:16,212 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-26 19:50:16,213 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-26 19:50:16,213 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-26 19:50:16,800 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-26 19:50:16,801 INFO L298 CfgBuilder]: Removed 12 assume(true) statements. [2020-10-26 19:50:16,803 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 07:50:16 BoogieIcfgContainer [2020-10-26 19:50:16,803 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-26 19:50:16,805 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-26 19:50:16,805 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-26 19:50:16,809 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-26 19:50:16,809 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.10 07:50:15" (1/3) ... [2020-10-26 19:50:16,810 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1fdb1648 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.10 07:50:16, skipping insertion in model container [2020-10-26 19:50:16,810 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 07:50:15" (2/3) ... [2020-10-26 19:50:16,811 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1fdb1648 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.10 07:50:16, skipping insertion in model container [2020-10-26 19:50:16,811 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 07:50:16" (3/3) ... [2020-10-26 19:50:16,813 INFO L111 eAbstractionObserver]: Analyzing ICFG copy-partial-3-u.c [2020-10-26 19:50:16,826 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-26 19:50:16,832 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-26 19:50:16,848 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-26 19:50:16,887 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-26 19:50:16,887 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-26 19:50:16,887 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-26 19:50:16,887 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-26 19:50:16,887 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-26 19:50:16,888 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-26 19:50:16,888 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-26 19:50:16,888 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-26 19:50:16,907 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states. [2020-10-26 19:50:16,914 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2020-10-26 19:50:16,914 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 19:50:16,915 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] [2020-10-26 19:50:16,916 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 19:50:16,922 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 19:50:16,923 INFO L82 PathProgramCache]: Analyzing trace with hash 1281654513, now seen corresponding path program 1 times [2020-10-26 19:50:16,932 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 19:50:16,933 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1237905211] [2020-10-26 19:50:16,933 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 19:50:17,061 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-10-26 19:50:17,062 WARN L167 FreeRefinementEngine]: Strategy FIXED_PREFERENCES was unsuccessful and could not determine trace feasibility [2020-10-26 19:50:17,062 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-26 19:50:17,067 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-26 19:50:17,083 WARN L238 ceAbstractionStarter]: Unable to decide correctness. Please check the following counterexample manually. [2020-10-26 19:50:17,084 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.10 07:50:17 BoogieIcfgContainer [2020-10-26 19:50:17,084 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-26 19:50:17,087 INFO L168 Benchmark]: Toolchain (without parser) took 1503.75 ms. Allocated memory is still 159.4 MB. Free memory was 133.7 MB in the beginning and 88.4 MB in the end (delta: 45.3 MB). Peak memory consumption was 45.1 MB. Max. memory is 8.0 GB. [2020-10-26 19:50:17,087 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 159.4 MB. Free memory is still 132.0 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-10-26 19:50:17,089 INFO L168 Benchmark]: CACSL2BoogieTranslator took 407.70 ms. Allocated memory is still 159.4 MB. Free memory was 133.0 MB in the beginning and 122.7 MB in the end (delta: 10.3 MB). Peak memory consumption was 9.4 MB. Max. memory is 8.0 GB. [2020-10-26 19:50:17,090 INFO L168 Benchmark]: Boogie Preprocessor took 98.89 ms. Allocated memory is still 159.4 MB. Free memory was 122.5 MB in the beginning and 120.7 MB in the end (delta: 1.8 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2020-10-26 19:50:17,091 INFO L168 Benchmark]: RCFGBuilder took 704.46 ms. Allocated memory is still 159.4 MB. Free memory was 120.7 MB in the beginning and 100.1 MB in the end (delta: 20.6 MB). Peak memory consumption was 21.0 MB. Max. memory is 8.0 GB. [2020-10-26 19:50:17,092 INFO L168 Benchmark]: TraceAbstraction took 279.29 ms. Allocated memory is still 159.4 MB. Free memory was 99.6 MB in the beginning and 88.4 MB in the end (delta: 11.2 MB). Peak memory consumption was 11.5 MB. Max. memory is 8.0 GB. [2020-10-26 19:50:17,096 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 159.4 MB. Free memory is still 132.0 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 407.70 ms. Allocated memory is still 159.4 MB. Free memory was 133.0 MB in the beginning and 122.7 MB in the end (delta: 10.3 MB). Peak memory consumption was 9.4 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 98.89 ms. Allocated memory is still 159.4 MB. Free memory was 122.5 MB in the beginning and 120.7 MB in the end (delta: 1.8 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 704.46 ms. Allocated memory is still 159.4 MB. Free memory was 120.7 MB in the beginning and 100.1 MB in the end (delta: 20.6 MB). Peak memory consumption was 21.0 MB. Max. memory is 8.0 GB. * TraceAbstraction took 279.29 ms. Allocated memory is still 159.4 MB. Free memory was 99.6 MB in the beginning and 88.4 MB in the end (delta: 11.2 MB). Peak memory consumption was 11.5 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 3]: 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: [L19] int i,j,k; [L20] int n=1000; [L21] int p=500; [L22] int A [n][n][n]; [L23] int B [n][n][n]; [L24] CALL assume_abort_if_not(p