/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 SingleStatement --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=LOWLEXORDER --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/loops/nec40.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-24 21:49:56,115 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-24 21:49:56,119 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-24 21:49:56,161 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-24 21:49:56,161 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-24 21:49:56,169 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-24 21:49:56,171 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-24 21:49:56,175 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-24 21:49:56,177 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-24 21:49:56,180 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-24 21:49:56,182 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-24 21:49:56,183 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-24 21:49:56,183 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-24 21:49:56,186 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-24 21:49:56,189 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-24 21:49:56,190 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-24 21:49:56,192 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-24 21:49:56,194 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-24 21:49:56,196 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-24 21:49:56,206 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-24 21:49:56,208 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-24 21:49:56,209 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-24 21:49:56,210 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-24 21:49:56,211 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-24 21:49:56,223 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-24 21:49:56,223 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-24 21:49:56,224 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-24 21:49:56,225 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-24 21:49:56,226 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-24 21:49:56,227 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-24 21:49:56,228 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-24 21:49:56,228 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-24 21:49:56,229 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-24 21:49:56,232 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-24 21:49:56,233 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-24 21:49:56,234 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-24 21:49:56,234 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-24 21:49:56,235 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-24 21:49:56,235 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-24 21:49:56,236 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-24 21:49:56,238 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-24 21:49:56,238 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 [2020-09-24 21:49:56,287 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-24 21:49:56,287 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-24 21:49:56,289 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-24 21:49:56,289 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-24 21:49:56,290 INFO L138 SettingsManager]: * Use SBE=true [2020-09-24 21:49:56,290 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-24 21:49:56,290 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-24 21:49:56,291 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-24 21:49:56,291 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-24 21:49:56,291 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-24 21:49:56,292 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-24 21:49:56,292 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-24 21:49:56,293 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-24 21:49:56,293 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-24 21:49:56,293 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-24 21:49:56,293 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-24 21:49:56,294 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-24 21:49:56,294 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-24 21:49:56,294 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-24 21:49:56,294 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-24 21:49:56,294 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-24 21:49:56,295 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 21:49:56,295 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-24 21:49:56,295 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-24 21:49:56,295 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-24 21:49:56,295 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-24 21:49:56,296 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-24 21:49:56,296 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-24 21:49:56,296 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-24 21:49:56,296 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 -> SingleStatement 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=LOWLEXORDER;log-additional-information=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=LOWLEXORDER;log-additional-information=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=LOWLEXORDER;log-additional-information=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=LOWLEXORDER;log-additional-information=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=LOWLEXORDER;log-additional-information=true; [2020-09-24 21:49:56,763 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-24 21:49:56,781 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-24 21:49:56,786 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-24 21:49:56,788 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-24 21:49:56,789 INFO L275 PluginConnector]: CDTParser initialized [2020-09-24 21:49:56,790 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loops/nec40.c [2020-09-24 21:49:56,875 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/64f90bce6/6a189bbc391e482c8c55524c3b33b9a3/FLAGa4a0c1ac5 [2020-09-24 21:49:57,426 INFO L306 CDTParser]: Found 1 translation units. [2020-09-24 21:49:57,427 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/loops/nec40.c [2020-09-24 21:49:57,433 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/64f90bce6/6a189bbc391e482c8c55524c3b33b9a3/FLAGa4a0c1ac5 [2020-09-24 21:49:57,784 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/64f90bce6/6a189bbc391e482c8c55524c3b33b9a3 [2020-09-24 21:49:57,800 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-24 21:49:57,806 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-24 21:49:57,808 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-24 21:49:57,808 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-24 21:49:57,812 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-24 21:49:57,813 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 09:49:57" (1/1) ... [2020-09-24 21:49:57,818 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@763ad0aa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:49:57, skipping insertion in model container [2020-09-24 21:49:57,818 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 09:49:57" (1/1) ... [2020-09-24 21:49:57,828 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-24 21:49:57,857 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-24 21:49:58,070 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 21:49:58,082 INFO L203 MainTranslator]: Completed pre-run [2020-09-24 21:49:58,114 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 21:49:58,142 INFO L208 MainTranslator]: Completed translation [2020-09-24 21:49:58,143 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:49:58 WrapperNode [2020-09-24 21:49:58,143 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-24 21:49:58,144 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-24 21:49:58,144 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-24 21:49:58,144 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-24 21:49:58,247 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:49:58" (1/1) ... [2020-09-24 21:49:58,247 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:49:58" (1/1) ... [2020-09-24 21:49:58,257 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:49:58" (1/1) ... [2020-09-24 21:49:58,257 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:49:58" (1/1) ... [2020-09-24 21:49:58,267 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:49:58" (1/1) ... [2020-09-24 21:49:58,273 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:49:58" (1/1) ... [2020-09-24 21:49:58,275 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:49:58" (1/1) ... [2020-09-24 21:49:58,277 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-24 21:49:58,277 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-24 21:49:58,278 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-24 21:49:58,278 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-24 21:49:58,279 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:49:58" (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 [2020-09-24 21:49:58,350 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-24 21:49:58,351 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-24 21:49:58,351 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-09-24 21:49:58,352 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-24 21:49:58,352 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-24 21:49:58,352 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-09-24 21:49:58,352 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-24 21:49:58,352 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-24 21:49:58,353 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-24 21:49:58,353 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-24 21:49:58,353 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-24 21:49:58,353 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-24 21:49:58,353 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-24 21:49:58,353 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-24 21:49:58,605 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-24 21:49:58,605 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-09-24 21:49:58,612 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 09:49:58 BoogieIcfgContainer [2020-09-24 21:49:58,612 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-24 21:49:58,615 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-24 21:49:58,615 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-24 21:49:58,618 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-24 21:49:58,619 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.09 09:49:57" (1/3) ... [2020-09-24 21:49:58,620 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6ef7cb3a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 09:49:58, skipping insertion in model container [2020-09-24 21:49:58,620 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:49:58" (2/3) ... [2020-09-24 21:49:58,621 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6ef7cb3a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 09:49:58, skipping insertion in model container [2020-09-24 21:49:58,621 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 09:49:58" (3/3) ... [2020-09-24 21:49:58,623 INFO L109 eAbstractionObserver]: Analyzing ICFG nec40.c [2020-09-24 21:49:58,636 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-24 21:49:58,647 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-24 21:49:58,675 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-24 21:49:58,708 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-24 21:49:58,708 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-24 21:49:58,708 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-24 21:49:58,708 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-24 21:49:58,709 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-24 21:49:58,709 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-24 21:49:58,709 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-24 21:49:58,709 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-24 21:49:58,735 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states. [2020-09-24 21:49:58,743 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2020-09-24 21:49:58,744 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 21:49:58,745 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 21:49:58,746 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 21:49:58,753 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 21:49:58,754 INFO L82 PathProgramCache]: Analyzing trace with hash 1729523867, now seen corresponding path program 1 times [2020-09-24 21:49:58,765 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 21:49:58,765 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [103101650] [2020-09-24 21:49:58,766 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 21:49:58,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:49:58,953 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:49:59,029 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:49:59,101 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:49:59,841 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:49:59,841 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-09-24 21:49:59,842 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-24 21:49:59,842 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 924 [2020-09-24 21:49:59,845 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:49:59,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 21:49:59,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-09-24 21:49:59,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-09-24 21:49:59,847 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-24 21:50:00,003 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 21:50:00,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:50:00,023 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:50:00,060 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:50:00,061 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-09-24 21:50:00,061 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:50:00,062 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 43 [2020-09-24 21:50:00,062 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:50:00,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:50:00,063 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:50:00,063 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 21:50:00,063 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:50:00,099 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 21:50:00,100 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [103101650] [2020-09-24 21:50:00,103 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 21:50:00,103 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-24 21:50:00,105 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [257072286] [2020-09-24 21:50:00,112 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-24 21:50:00,112 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 21:50:00,131 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-24 21:50:00,132 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-09-24 21:50:00,135 INFO L87 Difference]: Start difference. First operand 46 states. Second operand 5 states. [2020-09-24 21:50:00,377 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 21:50:00,378 INFO L93 Difference]: Finished difference Result 80 states and 90 transitions. [2020-09-24 21:50:00,378 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-24 21:50:00,380 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 28 [2020-09-24 21:50:00,381 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 21:50:00,391 INFO L225 Difference]: With dead ends: 80 [2020-09-24 21:50:00,392 INFO L226 Difference]: Without dead ends: 43 [2020-09-24 21:50:00,396 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-09-24 21:50:00,419 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2020-09-24 21:50:00,446 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 40. [2020-09-24 21:50:00,448 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 40 states. [2020-09-24 21:50:00,449 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 40 transitions. [2020-09-24 21:50:00,452 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 40 transitions. Word has length 28 [2020-09-24 21:50:00,452 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 21:50:00,452 INFO L479 AbstractCegarLoop]: Abstraction has 40 states and 40 transitions. [2020-09-24 21:50:00,452 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-24 21:50:00,453 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 40 transitions. [2020-09-24 21:50:00,454 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2020-09-24 21:50:00,454 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 21:50:00,454 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 21:50:00,455 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-24 21:50:00,455 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 21:50:00,456 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 21:50:00,456 INFO L82 PathProgramCache]: Analyzing trace with hash 1137669723, now seen corresponding path program 1 times [2020-09-24 21:50:00,456 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 21:50:00,457 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [982612003] [2020-09-24 21:50:00,457 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 21:50:00,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:50:00,495 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:50:00,582 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:50:01,264 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:50:01,265 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 48 [2020-09-24 21:50:01,265 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 21:50:01,265 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 784 [2020-09-24 21:50:01,266 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:50:01,267 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 21:50:01,267 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-09-24 21:50:01,268 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-09-24 21:50:01,268 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:50:01,347 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 21:50:01,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:50:01,367 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:50:01,407 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:50:01,407 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-09-24 21:50:01,408 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:50:01,411 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 46 [2020-09-24 21:50:01,412 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:50:01,412 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-24 21:50:01,413 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:50:01,413 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 21:50:01,413 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:50:01,442 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 21:50:01,443 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [982612003] [2020-09-24 21:50:01,443 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 21:50:01,444 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-24 21:50:01,444 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [589953108] [2020-09-24 21:50:01,448 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-24 21:50:01,448 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 21:50:01,448 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-24 21:50:01,450 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-09-24 21:50:01,458 INFO L87 Difference]: Start difference. First operand 40 states and 40 transitions. Second operand 5 states. [2020-09-24 21:50:01,566 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 21:50:01,567 INFO L93 Difference]: Finished difference Result 40 states and 40 transitions. [2020-09-24 21:50:01,567 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-24 21:50:01,567 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 39 [2020-09-24 21:50:01,568 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 21:50:01,568 INFO L225 Difference]: With dead ends: 40 [2020-09-24 21:50:01,568 INFO L226 Difference]: Without dead ends: 0 [2020-09-24 21:50:01,570 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-09-24 21:50:01,570 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-09-24 21:50:01,570 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-09-24 21:50:01,571 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-09-24 21:50:01,571 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-09-24 21:50:01,571 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 39 [2020-09-24 21:50:01,571 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 21:50:01,571 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-09-24 21:50:01,572 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-24 21:50:01,572 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-09-24 21:50:01,572 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-09-24 21:50:01,572 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-24 21:50:01,575 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-09-24 21:50:01,733 INFO L268 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2020-09-24 21:50:01,733 INFO L268 CegarLoopResult]: For program point L-1-1(line -1) no Hoare annotation was computed. [2020-09-24 21:50:01,733 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-09-24 21:50:01,733 INFO L268 CegarLoopResult]: For program point L12(line 12) no Hoare annotation was computed. [2020-09-24 21:50:01,734 INFO L268 CegarLoopResult]: For program point L11(line 11) no Hoare annotation was computed. [2020-09-24 21:50:01,734 INFO L268 CegarLoopResult]: For program point L12-1(line 12) no Hoare annotation was computed. [2020-09-24 21:50:01,734 INFO L268 CegarLoopResult]: For program point L11-1(line 11) no Hoare annotation was computed. [2020-09-24 21:50:01,734 INFO L268 CegarLoopResult]: For program point L12-2(line 12) no Hoare annotation was computed. [2020-09-24 21:50:01,735 INFO L264 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= ~j~0 |old(~j~0)|) (= |~#x~0.offset| |old(~#x~0.offset)|) (= |~#y~0.offset| |old(~#y~0.offset)|) (= ~i~0 |old(~i~0)|) (= |old(#length)| |#length|) (= ~k~0 |old(~k~0)|) (= |#memory_int| |old(#memory_int)|) (= |#NULL.base| |old(#NULL.base)|) (= |~#x~0.base| |old(~#x~0.base)|) (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#valid)| |#valid|) (= |~#y~0.base| |old(~#y~0.base)|)) [2020-09-24 21:50:01,735 INFO L268 CegarLoopResult]: For program point L11-2(line 11) no Hoare annotation was computed. [2020-09-24 21:50:01,735 INFO L268 CegarLoopResult]: For program point L11-3(line 11) no Hoare annotation was computed. [2020-09-24 21:50:01,735 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-09-24 21:50:01,735 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-09-24 21:50:01,736 INFO L264 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: (let ((.cse0 ((as const (Array Int Int)) 0))) (and (= (select |#memory_int| |~#x~0.base|) .cse0) (= .cse0 (select |#memory_int| |~#y~0.base|)))) [2020-09-24 21:50:01,736 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-09-24 21:50:01,736 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-09-24 21:50:01,736 INFO L268 CegarLoopResult]: For program point L25(line 25) no Hoare annotation was computed. [2020-09-24 21:50:01,736 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 14 29) no Hoare annotation was computed. [2020-09-24 21:50:01,737 INFO L268 CegarLoopResult]: For program point L25-1(lines 25 26) no Hoare annotation was computed. [2020-09-24 21:50:01,737 INFO L268 CegarLoopResult]: For program point L25-2(line 25) no Hoare annotation was computed. [2020-09-24 21:50:01,737 INFO L268 CegarLoopResult]: For program point L25-3(line 25) no Hoare annotation was computed. [2020-09-24 21:50:01,737 INFO L268 CegarLoopResult]: For program point L19(line 19) no Hoare annotation was computed. [2020-09-24 21:50:01,737 INFO L268 CegarLoopResult]: For program point L19-1(line 19) no Hoare annotation was computed. [2020-09-24 21:50:01,737 INFO L268 CegarLoopResult]: For program point L17(line 17) no Hoare annotation was computed. [2020-09-24 21:50:01,737 INFO L268 CegarLoopResult]: For program point L19-2(line 19) no Hoare annotation was computed. [2020-09-24 21:50:01,738 INFO L268 CegarLoopResult]: For program point L15(line 15) no Hoare annotation was computed. [2020-09-24 21:50:01,738 INFO L268 CegarLoopResult]: For program point L15-1(line 15) no Hoare annotation was computed. [2020-09-24 21:50:01,738 INFO L268 CegarLoopResult]: For program point mainFINAL(lines 14 29) no Hoare annotation was computed. [2020-09-24 21:50:01,738 INFO L264 CegarLoopResult]: At program point mainENTRY(lines 14 29) the Hoare annotation is: (let ((.cse0 ((as const (Array Int Int)) 0))) (or (not (= .cse0 (select |old(#memory_int)| |~#x~0.base|))) (not (= .cse0 (select |old(#memory_int)| |~#y~0.base|))) (and (= ~i~0 |old(~i~0)|) (= ~k~0 |old(~k~0)|) (= |#memory_int| |old(#memory_int)|)))) [2020-09-24 21:50:01,738 INFO L264 CegarLoopResult]: At program point L26(line 26) the Hoare annotation is: (let ((.cse0 ((as const (Array Int Int)) 0))) (or (not (= .cse0 (select |old(#memory_int)| |~#x~0.base|))) (not (= .cse0 (select |old(#memory_int)| |~#y~0.base|))))) [2020-09-24 21:50:01,739 INFO L268 CegarLoopResult]: For program point L24(lines 24 26) no Hoare annotation was computed. [2020-09-24 21:50:01,739 INFO L268 CegarLoopResult]: For program point L22(lines 14 29) no Hoare annotation was computed. [2020-09-24 21:50:01,739 INFO L268 CegarLoopResult]: For program point L20(line 20) no Hoare annotation was computed. [2020-09-24 21:50:01,739 INFO L268 CegarLoopResult]: For program point L20-1(line 20) no Hoare annotation was computed. [2020-09-24 21:50:01,739 INFO L268 CegarLoopResult]: For program point L20-2(line 20) no Hoare annotation was computed. [2020-09-24 21:50:01,739 INFO L268 CegarLoopResult]: For program point L18-1(lines 18 21) no Hoare annotation was computed. [2020-09-24 21:50:01,740 INFO L268 CegarLoopResult]: For program point L18-2(line 18) no Hoare annotation was computed. [2020-09-24 21:50:01,740 INFO L268 CegarLoopResult]: For program point L18-4(line 18) no Hoare annotation was computed. [2020-09-24 21:50:01,740 INFO L264 CegarLoopResult]: At program point L18-5(lines 18 21) the Hoare annotation is: (let ((.cse0 ((as const (Array Int Int)) 0))) (or (and (= (select |#memory_int| |~#x~0.base|) .cse0) (= .cse0 (select |#memory_int| |~#y~0.base|))) (not (= .cse0 (select |old(#memory_int)| |~#x~0.base|))) (not (= .cse0 (select |old(#memory_int)| |~#y~0.base|))))) [2020-09-24 21:50:01,740 INFO L268 CegarLoopResult]: For program point L18-6(lines 18 21) no Hoare annotation was computed. [2020-09-24 21:50:01,740 INFO L271 CegarLoopResult]: At program point __VERIFIER_assertENTRY(lines 3 8) the Hoare annotation is: true [2020-09-24 21:50:01,741 INFO L268 CegarLoopResult]: For program point __VERIFIER_assertEXIT(lines 3 8) no Hoare annotation was computed. [2020-09-24 21:50:01,741 INFO L268 CegarLoopResult]: For program point L5(line 5) no Hoare annotation was computed. [2020-09-24 21:50:01,741 INFO L268 CegarLoopResult]: For program point L4(lines 4 6) no Hoare annotation was computed. [2020-09-24 21:50:01,741 INFO L268 CegarLoopResult]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 5) no Hoare annotation was computed. [2020-09-24 21:50:01,741 INFO L268 CegarLoopResult]: For program point L4-2(lines 3 8) no Hoare annotation was computed. [2020-09-24 21:50:01,753 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.IllegalArgumentException: unknown symbol (const Int (Array Int Int)) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:238) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:129) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:165) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:129) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:165) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:129) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:165) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:129) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.RCFGBacktranslator.translateExpression(RCFGBacktranslator.java:394) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.RCFGBacktranslator.translateExpression(RCFGBacktranslator.java:1) at de.uni_freiburg.informatik.ultimate.core.coreplugin.services.ModelTranslationContainer.translateExpression(ModelTranslationContainer.java:106) at de.uni_freiburg.informatik.ultimate.core.coreplugin.services.ModelTranslationContainer.translateExpressionToString(ModelTranslationContainer.java:89) at de.uni_freiburg.informatik.ultimate.core.lib.results.InvariantResult.getLongDescription(InvariantResult.java:65) at de.uni_freiburg.informatik.ultimate.core.coreplugin.services.ResultService.reportResult(ResultService.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.reportResult(TraceAbstractionStarter.java:693) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.createInvariantResults(TraceAbstractionStarter.java:260) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:217) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:127) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:120) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:317) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) [2020-09-24 21:50:01,760 INFO L168 Benchmark]: Toolchain (without parser) took 3956.42 ms. Allocated memory was 148.4 MB in the beginning and 242.7 MB in the end (delta: 94.4 MB). Free memory was 103.1 MB in the beginning and 181.4 MB in the end (delta: -78.3 MB). Peak memory consumption was 16.1 MB. Max. memory is 7.1 GB. [2020-09-24 21:50:01,761 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 148.4 MB. Free memory was 121.8 MB in the beginning and 121.4 MB in the end (delta: 419.5 kB). Peak memory consumption was 419.5 kB. Max. memory is 7.1 GB. [2020-09-24 21:50:01,762 INFO L168 Benchmark]: CACSL2BoogieTranslator took 335.96 ms. Allocated memory is still 148.4 MB. Free memory was 102.7 MB in the beginning and 92.3 MB in the end (delta: 10.4 MB). Peak memory consumption was 10.4 MB. Max. memory is 7.1 GB. [2020-09-24 21:50:01,763 INFO L168 Benchmark]: Boogie Preprocessor took 133.23 ms. Allocated memory was 148.4 MB in the beginning and 204.5 MB in the end (delta: 56.1 MB). Free memory was 92.3 MB in the beginning and 182.0 MB in the end (delta: -89.7 MB). Peak memory consumption was 10.1 MB. Max. memory is 7.1 GB. [2020-09-24 21:50:01,764 INFO L168 Benchmark]: RCFGBuilder took 335.31 ms. Allocated memory is still 204.5 MB. Free memory was 182.0 MB in the beginning and 166.0 MB in the end (delta: 16.0 MB). Peak memory consumption was 16.0 MB. Max. memory is 7.1 GB. [2020-09-24 21:50:01,765 INFO L168 Benchmark]: TraceAbstraction took 3141.18 ms. Allocated memory was 204.5 MB in the beginning and 242.7 MB in the end (delta: 38.3 MB). Free memory was 165.1 MB in the beginning and 181.4 MB in the end (delta: -16.3 MB). Peak memory consumption was 22.0 MB. Max. memory is 7.1 GB. [2020-09-24 21:50:01,770 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 ms. Allocated memory is still 148.4 MB. Free memory was 121.8 MB in the beginning and 121.4 MB in the end (delta: 419.5 kB). Peak memory consumption was 419.5 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 335.96 ms. Allocated memory is still 148.4 MB. Free memory was 102.7 MB in the beginning and 92.3 MB in the end (delta: 10.4 MB). Peak memory consumption was 10.4 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 133.23 ms. Allocated memory was 148.4 MB in the beginning and 204.5 MB in the end (delta: 56.1 MB). Free memory was 92.3 MB in the beginning and 182.0 MB in the end (delta: -89.7 MB). Peak memory consumption was 10.1 MB. Max. memory is 7.1 GB. * RCFGBuilder took 335.31 ms. Allocated memory is still 204.5 MB. Free memory was 182.0 MB in the beginning and 166.0 MB in the end (delta: 16.0 MB). Peak memory consumption was 16.0 MB. Max. memory is 7.1 GB. * TraceAbstraction took 3141.18 ms. Allocated memory was 204.5 MB in the beginning and 242.7 MB in the end (delta: 38.3 MB). Free memory was 165.1 MB in the beginning and 181.4 MB in the end (delta: -16.3 MB). Peak memory consumption was 22.0 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 5]: 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 - ExceptionOrErrorResult: IllegalArgumentException: unknown symbol (const Int (Array Int Int)) de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: IllegalArgumentException: unknown symbol (const Int (Array Int Int)): de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:238) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...