/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/loops-crafted-1/sumt8.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-0f64333 [2020-10-27 01:54:30,025 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-27 01:54:30,028 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-27 01:54:30,103 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-27 01:54:30,103 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-27 01:54:30,105 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-27 01:54:30,109 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-27 01:54:30,111 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-27 01:54:30,114 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-27 01:54:30,115 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-27 01:54:30,116 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-27 01:54:30,118 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-27 01:54:30,118 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-27 01:54:30,120 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-27 01:54:30,121 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-27 01:54:30,123 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-27 01:54:30,124 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-27 01:54:30,125 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-27 01:54:30,127 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-27 01:54:30,130 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-27 01:54:30,132 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-27 01:54:30,137 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-27 01:54:30,138 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-27 01:54:30,139 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-27 01:54:30,143 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-27 01:54:30,143 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-27 01:54:30,144 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-27 01:54:30,145 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-27 01:54:30,145 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-27 01:54:30,146 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-27 01:54:30,147 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-27 01:54:30,148 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-27 01:54:30,149 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-27 01:54:30,150 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-27 01:54:30,151 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-27 01:54:30,151 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-27 01:54:30,152 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-27 01:54:30,153 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-27 01:54:30,153 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-27 01:54:30,154 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-27 01:54:30,155 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-27 01:54:30,156 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 [2020-10-27 01:54:30,184 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-27 01:54:30,184 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-27 01:54:30,185 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-27 01:54:30,186 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-27 01:54:30,186 INFO L138 SettingsManager]: * Use SBE=true [2020-10-27 01:54:30,186 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-27 01:54:30,187 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-27 01:54:30,187 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-27 01:54:30,187 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-27 01:54:30,188 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-27 01:54:30,188 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-27 01:54:30,188 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-27 01:54:30,188 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-27 01:54:30,188 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-27 01:54:30,189 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-27 01:54:30,189 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-27 01:54:30,189 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-27 01:54:30,189 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-27 01:54:30,190 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-27 01:54:30,190 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-27 01:54:30,190 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-27 01:54:30,190 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-27 01:54:30,190 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-27 01:54:30,191 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-27 01:54:30,191 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-27 01:54:30,191 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-27 01:54:30,191 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-27 01:54:30,191 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-27 01:54:30,192 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-27 01:54:30,192 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SHALLOWEST;log-additional-information=true;unknown-allowed=true; [2020-10-27 01:54:30,621 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-27 01:54:30,658 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-27 01:54:30,661 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-27 01:54:30,663 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-27 01:54:30,664 INFO L275 PluginConnector]: CDTParser initialized [2020-10-27 01:54:30,666 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loops-crafted-1/sumt8.c [2020-10-27 01:54:30,750 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/a74093736/bcf1f40e8fb54c17b617f6acea0cad1c/FLAGbb697e94a [2020-10-27 01:54:31,358 INFO L306 CDTParser]: Found 1 translation units. [2020-10-27 01:54:31,359 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/loops-crafted-1/sumt8.c [2020-10-27 01:54:31,368 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/a74093736/bcf1f40e8fb54c17b617f6acea0cad1c/FLAGbb697e94a [2020-10-27 01:54:31,651 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/a74093736/bcf1f40e8fb54c17b617f6acea0cad1c [2020-10-27 01:54:31,654 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-27 01:54:31,661 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-27 01:54:31,662 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-27 01:54:31,662 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-27 01:54:31,667 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-27 01:54:31,668 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 01:54:31" (1/1) ... [2020-10-27 01:54:31,672 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@433d4167 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 01:54:31, skipping insertion in model container [2020-10-27 01:54:31,672 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 01:54:31" (1/1) ... [2020-10-27 01:54:31,681 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-27 01:54:31,698 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-27 01:54:31,882 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-27 01:54:31,892 INFO L203 MainTranslator]: Completed pre-run [2020-10-27 01:54:31,917 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-27 01:54:31,936 INFO L208 MainTranslator]: Completed translation [2020-10-27 01:54:31,937 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 01:54:31 WrapperNode [2020-10-27 01:54:31,937 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-27 01:54:31,938 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-27 01:54:31,938 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-27 01:54:31,938 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-27 01:54:31,950 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 01:54:31" (1/1) ... [2020-10-27 01:54:31,950 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 01:54:31" (1/1) ... [2020-10-27 01:54:31,959 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 01:54:31" (1/1) ... [2020-10-27 01:54:31,960 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 01:54:31" (1/1) ... [2020-10-27 01:54:31,994 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 01:54:31" (1/1) ... [2020-10-27 01:54:32,007 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 01:54:31" (1/1) ... [2020-10-27 01:54:32,014 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 01:54:31" (1/1) ... [2020-10-27 01:54:32,017 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-27 01:54:32,035 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-27 01:54:32,035 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-27 01:54:32,035 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-27 01:54:32,036 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 01:54:31" (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 [2020-10-27 01:54:32,129 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-27 01:54:32,129 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-27 01:54:32,130 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-27 01:54:32,130 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-10-27 01:54:32,130 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-10-27 01:54:32,131 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-27 01:54:32,132 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-27 01:54:32,132 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-27 01:54:32,132 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-27 01:54:32,132 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-27 01:54:32,133 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-10-27 01:54:32,133 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-10-27 01:54:32,134 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-27 01:54:32,134 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-27 01:54:32,134 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-27 01:54:32,135 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-27 01:54:32,135 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-27 01:54:32,135 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-27 01:54:32,135 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-27 01:54:32,136 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-27 01:54:32,689 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-27 01:54:32,690 INFO L298 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-27 01:54:32,693 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 01:54:32 BoogieIcfgContainer [2020-10-27 01:54:32,693 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-27 01:54:32,697 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-27 01:54:32,698 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-27 01:54:32,702 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-27 01:54:32,702 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.10 01:54:31" (1/3) ... [2020-10-27 01:54:32,703 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1a3e3b32 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 01:54:32, skipping insertion in model container [2020-10-27 01:54:32,704 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 01:54:31" (2/3) ... [2020-10-27 01:54:32,704 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1a3e3b32 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 01:54:32, skipping insertion in model container [2020-10-27 01:54:32,705 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 01:54:32" (3/3) ... [2020-10-27 01:54:32,706 INFO L111 eAbstractionObserver]: Analyzing ICFG sumt8.c [2020-10-27 01:54:32,720 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-27 01:54:32,730 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-27 01:54:32,746 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-27 01:54:32,790 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-27 01:54:32,791 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-27 01:54:32,791 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-27 01:54:32,791 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-27 01:54:32,791 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-27 01:54:32,792 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-27 01:54:32,792 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-27 01:54:32,792 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-27 01:54:32,818 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states. [2020-10-27 01:54:32,825 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-10-27 01:54:32,825 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 01:54:32,827 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 01:54:32,827 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 01:54:32,838 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 01:54:32,838 INFO L82 PathProgramCache]: Analyzing trace with hash 317129214, now seen corresponding path program 1 times [2020-10-27 01:54:32,848 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 01:54:32,849 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1820433889] [2020-10-27 01:54:32,850 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 01:54:33,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:54:33,246 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:54:33,663 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:54:33,663 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-27 01:54:33,664 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:54:33,664 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 523 [2020-10-27 01:54:33,666 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:54:33,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-27 01:54:33,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-27 01:54:33,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-27 01:54:33,667 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-27 01:54:33,917 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 01:54:33,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:54:33,924 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:54:33,932 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:54:33,933 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 01:54:33,933 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:54:33,933 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-27 01:54:33,933 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:54:33,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 01:54:33,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:54:33,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 01:54:33,934 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 01:54:33,947 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-27 01:54:33,949 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1820433889] [2020-10-27 01:54:33,951 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 01:54:33,951 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-27 01:54:33,952 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [108003344] [2020-10-27 01:54:33,957 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-27 01:54:33,958 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 01:54:33,972 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-27 01:54:33,973 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-10-27 01:54:33,976 INFO L87 Difference]: Start difference. First operand 32 states. Second operand 8 states. [2020-10-27 01:54:34,379 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 01:54:34,379 INFO L93 Difference]: Finished difference Result 51 states and 71 transitions. [2020-10-27 01:54:34,380 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-27 01:54:34,381 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 15 [2020-10-27 01:54:34,382 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 01:54:34,388 INFO L225 Difference]: With dead ends: 51 [2020-10-27 01:54:34,388 INFO L226 Difference]: Without dead ends: 0 [2020-10-27 01:54:34,392 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=33, Invalid=99, Unknown=0, NotChecked=0, Total=132 [2020-10-27 01:54:34,410 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-27 01:54:34,416 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-27 01:54:34,418 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-27 01:54:34,418 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-27 01:54:34,419 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 15 [2020-10-27 01:54:34,420 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 01:54:34,420 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-27 01:54:34,420 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-27 01:54:34,420 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-27 01:54:34,420 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-27 01:54:34,421 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-27 01:54:34,423 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-10-27 01:54:34,553 INFO L274 CegarLoopResult]: For program point reach_errorEXIT(line 3) no Hoare annotation was computed. [2020-10-27 01:54:34,553 INFO L277 CegarLoopResult]: At program point reach_errorENTRY(line 3) the Hoare annotation is: true [2020-10-27 01:54:34,553 INFO L274 CegarLoopResult]: For program point reach_errorFINAL(line 3) no Hoare annotation was computed. [2020-10-27 01:54:34,553 INFO L274 CegarLoopResult]: For program point reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION(line 3) no Hoare annotation was computed. [2020-10-27 01:54:34,554 INFO L274 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-10-27 01:54:34,554 INFO L270 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= |#t~string5.base| |old(#t~string5.base)|) (= |#t~string5.offset| |old(#t~string5.offset)|) (= |old(#length)| |#length|) (= |#t~string6.base| |old(#t~string6.base)|) (= ~SIZE~0 |old(~SIZE~0)|) (= |#t~string6.offset| |old(#t~string6.offset)|) (= |#t~string4.base| |old(#t~string4.base)|) (= |#NULL.base| |old(#NULL.base)|) (= |#t~string4.offset| |old(#t~string4.offset)|) (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#valid)| |#valid|)) [2020-10-27 01:54:34,554 INFO L274 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-10-27 01:54:34,554 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-10-27 01:54:34,554 INFO L277 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true [2020-10-27 01:54:34,554 INFO L277 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-10-27 01:54:34,555 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-10-27 01:54:34,555 INFO L274 CegarLoopResult]: For program point assume_abort_if_notENTRY(lines 5 7) no Hoare annotation was computed. [2020-10-27 01:54:34,555 INFO L274 CegarLoopResult]: For program point L6(line 6) no Hoare annotation was computed. [2020-10-27 01:54:34,555 INFO L274 CegarLoopResult]: For program point L6-2(lines 5 7) no Hoare annotation was computed. [2020-10-27 01:54:34,555 INFO L274 CegarLoopResult]: For program point assume_abort_if_notEXIT(lines 5 7) no Hoare annotation was computed. [2020-10-27 01:54:34,555 INFO L274 CegarLoopResult]: For program point L35-2(lines 23 38) no Hoare annotation was computed. [2020-10-27 01:54:34,556 INFO L274 CegarLoopResult]: For program point L31(lines 31 38) no Hoare annotation was computed. [2020-10-27 01:54:34,556 INFO L274 CegarLoopResult]: For program point L27(lines 27 38) no Hoare annotation was computed. [2020-10-27 01:54:34,556 INFO L274 CegarLoopResult]: For program point mainEXIT(lines 16 43) no Hoare annotation was computed. [2020-10-27 01:54:34,556 INFO L274 CegarLoopResult]: For program point L23(lines 23 38) no Hoare annotation was computed. [2020-10-27 01:54:34,556 INFO L270 CegarLoopResult]: At program point L40(line 40) the Hoare annotation is: (let ((.cse0 (+ main_~i~0 main_~j~0 main_~k~0 main_~v1~0 main_~v2~0 main_~v3~0 main_~v4~0 main_~v5~0))) (and (<= main_~l~0 .cse0) (<= .cse0 main_~l~0))) [2020-10-27 01:54:34,557 INFO L270 CegarLoopResult]: At program point L40-1(lines 21 41) the Hoare annotation is: (let ((.cse0 (+ main_~i~0 main_~j~0 main_~k~0 main_~v1~0 main_~v2~0 main_~v3~0 main_~v4~0 main_~v5~0))) (and (<= main_~l~0 .cse0) (<= .cse0 main_~l~0))) [2020-10-27 01:54:34,557 INFO L274 CegarLoopResult]: For program point L20(line 20) no Hoare annotation was computed. [2020-10-27 01:54:34,557 INFO L274 CegarLoopResult]: For program point L33(lines 33 38) no Hoare annotation was computed. [2020-10-27 01:54:34,557 INFO L274 CegarLoopResult]: For program point L29(lines 29 38) no Hoare annotation was computed. [2020-10-27 01:54:34,557 INFO L274 CegarLoopResult]: For program point L25(lines 25 38) no Hoare annotation was computed. [2020-10-27 01:54:34,557 INFO L274 CegarLoopResult]: For program point L21-2(lines 21 41) no Hoare annotation was computed. [2020-10-27 01:54:34,558 INFO L274 CegarLoopResult]: For program point mainFINAL(lines 16 43) no Hoare annotation was computed. [2020-10-27 01:54:34,558 INFO L277 CegarLoopResult]: At program point mainENTRY(lines 16 43) the Hoare annotation is: true [2020-10-27 01:54:34,558 INFO L274 CegarLoopResult]: For program point L35(lines 35 38) no Hoare annotation was computed. [2020-10-27 01:54:34,558 INFO L277 CegarLoopResult]: At program point __VERIFIER_assertENTRY(lines 8 13) the Hoare annotation is: true [2020-10-27 01:54:34,558 INFO L270 CegarLoopResult]: At program point L10(line 10) the Hoare annotation is: (not (<= 1 |__VERIFIER_assert_#in~cond|)) [2020-10-27 01:54:34,559 INFO L274 CegarLoopResult]: For program point __VERIFIER_assertEXIT(lines 8 13) no Hoare annotation was computed. [2020-10-27 01:54:34,559 INFO L274 CegarLoopResult]: For program point L9(lines 9 11) no Hoare annotation was computed. [2020-10-27 01:54:34,559 INFO L274 CegarLoopResult]: For program point L10-1(line 10) no Hoare annotation was computed. [2020-10-27 01:54:34,559 INFO L274 CegarLoopResult]: For program point L9-2(lines 8 13) no Hoare annotation was computed. [2020-10-27 01:54:34,576 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.10 01:54:34 BoogieIcfgContainer [2020-10-27 01:54:34,577 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-27 01:54:34,586 INFO L168 Benchmark]: Toolchain (without parser) took 2922.52 ms. Allocated memory was 169.9 MB in the beginning and 206.6 MB in the end (delta: 36.7 MB). Free memory was 148.7 MB in the beginning and 162.7 MB in the end (delta: -14.0 MB). Peak memory consumption was 22.1 MB. Max. memory is 8.0 GB. [2020-10-27 01:54:34,587 INFO L168 Benchmark]: CDTParser took 0.67 ms. Allocated memory is still 169.9 MB. Free memory is still 140.2 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-10-27 01:54:34,588 INFO L168 Benchmark]: CACSL2BoogieTranslator took 275.02 ms. Allocated memory is still 169.9 MB. Free memory was 148.1 MB in the beginning and 138.3 MB in the end (delta: 9.7 MB). Peak memory consumption was 10.5 MB. Max. memory is 8.0 GB. [2020-10-27 01:54:34,589 INFO L168 Benchmark]: Boogie Preprocessor took 78.96 ms. Allocated memory is still 169.9 MB. Free memory was 138.2 MB in the beginning and 153.6 MB in the end (delta: -15.5 MB). Peak memory consumption was 5.3 MB. Max. memory is 8.0 GB. [2020-10-27 01:54:34,590 INFO L168 Benchmark]: RCFGBuilder took 658.53 ms. Allocated memory is still 169.9 MB. Free memory was 153.4 MB in the beginning and 137.1 MB in the end (delta: 16.3 MB). Peak memory consumption was 15.7 MB. Max. memory is 8.0 GB. [2020-10-27 01:54:34,591 INFO L168 Benchmark]: TraceAbstraction took 1879.92 ms. Allocated memory was 169.9 MB in the beginning and 206.6 MB in the end (delta: 36.7 MB). Free memory was 136.7 MB in the beginning and 162.7 MB in the end (delta: -26.0 MB). Peak memory consumption was 11.5 MB. Max. memory is 8.0 GB. [2020-10-27 01:54:34,595 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.67 ms. Allocated memory is still 169.9 MB. Free memory is still 140.2 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 275.02 ms. Allocated memory is still 169.9 MB. Free memory was 148.1 MB in the beginning and 138.3 MB in the end (delta: 9.7 MB). Peak memory consumption was 10.5 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 78.96 ms. Allocated memory is still 169.9 MB. Free memory was 138.2 MB in the beginning and 153.6 MB in the end (delta: -15.5 MB). Peak memory consumption was 5.3 MB. Max. memory is 8.0 GB. * RCFGBuilder took 658.53 ms. Allocated memory is still 169.9 MB. Free memory was 153.4 MB in the beginning and 137.1 MB in the end (delta: 16.3 MB). Peak memory consumption was 15.7 MB. Max. memory is 8.0 GB. * TraceAbstraction took 1879.92 ms. Allocated memory was 169.9 MB in the beginning and 206.6 MB in the end (delta: 36.7 MB). Free memory was 136.7 MB in the beginning and 162.7 MB in the end (delta: -26.0 MB). Peak memory consumption was 11.5 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 3]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 21]: Loop Invariant Derived loop invariant: l <= i + j + k + v1 + v2 + v3 + v4 + v5 && i + j + k + v1 + v2 + v3 + v4 + v5 <= l - StatisticsResult: Ultimate Automizer benchmark data CFG has 6 procedures, 36 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 1.6s, OverallIterations: 1, TraceHistogramMax: 1, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.1s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 11 SDtfs, 33 SDslu, 37 SDs, 0 SdLazy, 116 SolverSat, 22 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=32occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 9 LocationsWithAnnotation, 11 PreInvPairs, 13 NumberOfFragments, 89 HoareAnnotationTreeSize, 11 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 9 FomulaSimplificationsInter, 140 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.8s InterpolantComputationTime, 15 NumberOfCodeBlocks, 15 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 14 ConstructedInterpolants, 0 QuantifiedInterpolants, 3010 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...