/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=SMALLESTAMONGWIDE --traceabstraction.additional.smt.options tolerance=0.2 --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/loop-invgen/nested9.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 11:25:06,773 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 11:25:06,777 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 11:25:06,818 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 11:25:06,819 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 11:25:06,827 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 11:25:06,829 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 11:25:06,833 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 11:25:06,836 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 11:25:06,839 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 11:25:06,840 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 11:25:06,841 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 11:25:06,842 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 11:25:06,844 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 11:25:06,848 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 11:25:06,850 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 11:25:06,852 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 11:25:06,853 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 11:25:06,854 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 11:25:06,862 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 11:25:06,865 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 11:25:06,866 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 11:25:06,867 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 11:25:06,868 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 11:25:06,884 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 11:25:06,885 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 11:25:06,885 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 11:25:06,888 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 11:25:06,889 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 11:25:06,890 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 11:25:06,890 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 11:25:06,894 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 11:25:06,895 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 11:25:06,896 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 11:25:06,897 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 11:25:06,897 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 11:25:06,898 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 11:25:06,898 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 11:25:06,899 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 11:25:06,900 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 11:25:06,900 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 11:25:06,901 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 [2020-09-25 11:25:06,944 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 11:25:06,945 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 11:25:06,946 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 11:25:06,946 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 11:25:06,947 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 11:25:06,947 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 11:25:06,947 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 11:25:06,948 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 11:25:06,948 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 11:25:06,948 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 11:25:06,949 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 11:25:06,949 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 11:25:06,949 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 11:25:06,950 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 11:25:06,950 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 11:25:06,950 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 11:25:06,951 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 11:25:06,951 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 11:25:06,951 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 11:25:06,951 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 11:25:06,951 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 11:25:06,952 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 11:25:06,952 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 11:25:06,952 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 11:25:06,952 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 11:25:06,952 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 11:25:06,953 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 11:25:06,953 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 11:25:06,953 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 11:25:06,953 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=SMALLESTAMONGWIDE;tolerance=0.2;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=SMALLESTAMONGWIDE;tolerance=0.2;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=SMALLESTAMONGWIDE;tolerance=0.2;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=SMALLESTAMONGWIDE;tolerance=0.2;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=SMALLESTAMONGWIDE;tolerance=0.2;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=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true; [2020-09-25 11:25:07,388 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 11:25:07,408 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 11:25:07,412 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 11:25:07,414 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 11:25:07,414 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 11:25:07,415 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-invgen/nested9.i [2020-09-25 11:25:07,496 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/0516e5cab/537b1c98c8284959a27f650975f7d3cf/FLAGea0f1a814 [2020-09-25 11:25:07,991 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 11:25:07,992 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/loop-invgen/nested9.i [2020-09-25 11:25:08,000 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/0516e5cab/537b1c98c8284959a27f650975f7d3cf/FLAGea0f1a814 [2020-09-25 11:25:08,341 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/0516e5cab/537b1c98c8284959a27f650975f7d3cf [2020-09-25 11:25:08,352 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 11:25:08,360 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 11:25:08,363 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 11:25:08,363 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 11:25:08,368 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 11:25:08,370 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 11:25:08" (1/1) ... [2020-09-25 11:25:08,375 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7e7cadc4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:25:08, skipping insertion in model container [2020-09-25 11:25:08,375 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 11:25:08" (1/1) ... [2020-09-25 11:25:08,385 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 11:25:08,414 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 11:25:08,640 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 11:25:08,646 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 11:25:08,671 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 11:25:08,685 INFO L208 MainTranslator]: Completed translation [2020-09-25 11:25:08,686 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:25:08 WrapperNode [2020-09-25 11:25:08,686 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 11:25:08,687 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 11:25:08,687 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 11:25:08,687 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 11:25:08,700 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:25:08" (1/1) ... [2020-09-25 11:25:08,700 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:25:08" (1/1) ... [2020-09-25 11:25:08,706 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:25:08" (1/1) ... [2020-09-25 11:25:08,706 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:25:08" (1/1) ... [2020-09-25 11:25:08,711 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:25:08" (1/1) ... [2020-09-25 11:25:08,798 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:25:08" (1/1) ... [2020-09-25 11:25:08,800 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:25:08" (1/1) ... [2020-09-25 11:25:08,802 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 11:25:08,803 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 11:25:08,803 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 11:25:08,803 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 11:25:08,804 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:25:08" (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 [2020-09-25 11:25:08,874 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 11:25:08,874 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 11:25:08,874 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-09-25 11:25:08,874 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-09-25 11:25:08,874 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 11:25:08,875 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 11:25:08,875 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-09-25 11:25:08,875 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-09-25 11:25:08,875 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-09-25 11:25:08,875 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 11:25:08,876 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 11:25:08,876 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 11:25:08,876 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 11:25:09,208 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 11:25:09,209 INFO L295 CfgBuilder]: Removed 3 assume(true) statements. [2020-09-25 11:25:09,215 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 11:25:09 BoogieIcfgContainer [2020-09-25 11:25:09,215 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 11:25:09,217 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 11:25:09,217 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 11:25:09,221 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 11:25:09,221 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 11:25:08" (1/3) ... [2020-09-25 11:25:09,222 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@55237fd2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 11:25:09, skipping insertion in model container [2020-09-25 11:25:09,222 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:25:08" (2/3) ... [2020-09-25 11:25:09,222 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@55237fd2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 11:25:09, skipping insertion in model container [2020-09-25 11:25:09,223 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 11:25:09" (3/3) ... [2020-09-25 11:25:09,225 INFO L109 eAbstractionObserver]: Analyzing ICFG nested9.i [2020-09-25 11:25:09,233 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 11:25:09,242 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 11:25:09,262 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 11:25:09,293 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 11:25:09,293 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 11:25:09,293 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 11:25:09,293 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 11:25:09,294 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 11:25:09,294 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 11:25:09,294 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 11:25:09,294 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 11:25:09,318 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states. [2020-09-25 11:25:09,326 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2020-09-25 11:25:09,326 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 11:25:09,328 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, 1, 1, 1, 1, 1, 1] [2020-09-25 11:25:09,328 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 11:25:09,335 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 11:25:09,336 INFO L82 PathProgramCache]: Analyzing trace with hash -980226087, now seen corresponding path program 1 times [2020-09-25 11:25:09,345 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 11:25:09,345 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [88469261] [2020-09-25 11:25:09,346 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 11:25:09,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:25:09,525 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:25:09,631 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:25:09,946 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:25:10,040 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:25:10,093 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:25:10,248 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:25:10,275 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:25:10,303 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:25:10,445 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:25:10,446 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 43 [2020-09-25 11:25:10,446 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-09-25 11:25:10,446 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 950 [2020-09-25 11:25:10,450 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:25:10,451 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:25:10,451 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 11:25:10,451 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 31 [2020-09-25 11:25:10,451 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-09-25 11:25:10,452 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-09-25 11:25:10,570 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 11:25:10,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:25:10,573 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:25:10,575 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:25:10,575 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 11:25:10,576 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:25:10,576 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 11:25:10,576 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:25:10,577 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:25:10,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 11:25:10,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:25:10,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 11:25:10,578 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:25:10,601 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 11:25:10,602 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [88469261] [2020-09-25 11:25:10,605 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 11:25:10,606 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-25 11:25:10,607 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [233907020] [2020-09-25 11:25:10,614 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-25 11:25:10,615 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 11:25:10,632 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-25 11:25:10,633 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2020-09-25 11:25:10,636 INFO L87 Difference]: Start difference. First operand 54 states. Second operand 8 states. [2020-09-25 11:25:11,196 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 11:25:11,196 INFO L93 Difference]: Finished difference Result 126 states and 163 transitions. [2020-09-25 11:25:11,197 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-09-25 11:25:11,199 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 34 [2020-09-25 11:25:11,199 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 11:25:11,213 INFO L225 Difference]: With dead ends: 126 [2020-09-25 11:25:11,213 INFO L226 Difference]: Without dead ends: 86 [2020-09-25 11:25:11,218 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=156, Unknown=0, NotChecked=0, Total=210 [2020-09-25 11:25:11,240 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86 states. [2020-09-25 11:25:11,275 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86 to 52. [2020-09-25 11:25:11,277 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 52 states. [2020-09-25 11:25:11,278 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 55 transitions. [2020-09-25 11:25:11,280 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 55 transitions. Word has length 34 [2020-09-25 11:25:11,281 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 11:25:11,281 INFO L479 AbstractCegarLoop]: Abstraction has 52 states and 55 transitions. [2020-09-25 11:25:11,281 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-25 11:25:11,282 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 55 transitions. [2020-09-25 11:25:11,283 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2020-09-25 11:25:11,283 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 11:25:11,283 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 11:25:11,284 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 11:25:11,284 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 11:25:11,284 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 11:25:11,285 INFO L82 PathProgramCache]: Analyzing trace with hash 1866176905, now seen corresponding path program 1 times [2020-09-25 11:25:11,285 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 11:25:11,285 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [311015299] [2020-09-25 11:25:11,286 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 11:25:11,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:25:11,311 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:25:11,328 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:25:11,372 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:25:11,434 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:25:11,541 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:25:11,683 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:25:11,794 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:25:11,851 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:25:11,908 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:25:12,063 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:25:12,149 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:25:12,213 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:25:12,805 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:25:13,059 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:25:13,184 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:25:13,341 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:25:13,442 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:25:13,583 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:25:13,584 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 54 [2020-09-25 11:25:13,584 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 17 [2020-09-25 11:25:13,584 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2283 [2020-09-25 11:25:13,585 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:25:13,586 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:25:13,586 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 11:25:13,586 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 32 [2020-09-25 11:25:13,586 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-09-25 11:25:13,594 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 9 [2020-09-25 11:25:13,655 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 11:25:13,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:25:13,659 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:25:13,660 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:25:13,660 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 11:25:13,660 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:25:13,660 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 11:25:13,661 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:25:13,661 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:25:13,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 11:25:13,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:25:13,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 11:25:13,662 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:25:13,664 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2020-09-25 11:25:13,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:25:13,668 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:25:13,687 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:25:13,687 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 11:25:13,687 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:25:13,688 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-09-25 11:25:13,688 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:25:13,689 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:25:13,689 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 11:25:13,689 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:25:13,690 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 11:25:13,690 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 11:25:13,699 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-09-25 11:25:13,700 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [311015299] [2020-09-25 11:25:13,701 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 11:25:13,701 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-09-25 11:25:13,701 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [464904705] [2020-09-25 11:25:13,713 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-25 11:25:13,713 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 11:25:13,713 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-25 11:25:13,721 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2020-09-25 11:25:13,721 INFO L87 Difference]: Start difference. First operand 52 states and 55 transitions. Second operand 8 states. [2020-09-25 11:25:13,951 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 11:25:13,951 INFO L93 Difference]: Finished difference Result 52 states and 55 transitions. [2020-09-25 11:25:13,952 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-09-25 11:25:13,952 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 43 [2020-09-25 11:25:13,953 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 11:25:13,953 INFO L225 Difference]: With dead ends: 52 [2020-09-25 11:25:13,953 INFO L226 Difference]: Without dead ends: 0 [2020-09-25 11:25:13,955 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=41, Invalid=115, Unknown=0, NotChecked=0, Total=156 [2020-09-25 11:25:13,955 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-09-25 11:25:13,955 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-09-25 11:25:13,955 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-09-25 11:25:13,955 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-09-25 11:25:13,956 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 43 [2020-09-25 11:25:13,956 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 11:25:13,956 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-09-25 11:25:13,956 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-25 11:25:13,956 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-09-25 11:25:13,956 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-09-25 11:25:13,957 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 11:25:13,959 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-09-25 11:25:14,096 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-09-25 11:25:14,097 INFO L264 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (= ~__BLAST_NONDET~0 |old(~__BLAST_NONDET~0)|) [2020-09-25 11:25:14,097 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-09-25 11:25:14,097 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-09-25 11:25:14,097 INFO L271 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true [2020-09-25 11:25:14,097 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-09-25 11:25:14,097 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-09-25 11:25:14,097 INFO L268 CegarLoopResult]: For program point L4-3(lines 3 5) no Hoare annotation was computed. [2020-09-25 11:25:14,098 INFO L268 CegarLoopResult]: For program point assume_abort_if_notENTRY(lines 3 5) no Hoare annotation was computed. [2020-09-25 11:25:14,098 INFO L268 CegarLoopResult]: For program point L4(line 4) no Hoare annotation was computed. [2020-09-25 11:25:14,098 INFO L268 CegarLoopResult]: For program point L4-1(line 4) no Hoare annotation was computed. [2020-09-25 11:25:14,098 INFO L268 CegarLoopResult]: For program point assume_abort_if_notEXIT(lines 3 5) no Hoare annotation was computed. [2020-09-25 11:25:14,098 INFO L271 CegarLoopResult]: At program point L27(lines 14 29) the Hoare annotation is: true [2020-09-25 11:25:14,098 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 14 29) no Hoare annotation was computed. [2020-09-25 11:25:14,098 INFO L268 CegarLoopResult]: For program point L23-2(lines 23 26) no Hoare annotation was computed. [2020-09-25 11:25:14,099 INFO L268 CegarLoopResult]: For program point L23-3(line 23) no Hoare annotation was computed. [2020-09-25 11:25:14,099 INFO L268 CegarLoopResult]: For program point L19(line 19) no Hoare annotation was computed. [2020-09-25 11:25:14,100 INFO L268 CegarLoopResult]: For program point L23-4(line 23) no Hoare annotation was computed. [2020-09-25 11:25:14,100 INFO L268 CegarLoopResult]: For program point L19-1(line 19) no Hoare annotation was computed. [2020-09-25 11:25:14,100 INFO L264 CegarLoopResult]: At program point L23-5(lines 23 26) the Hoare annotation is: (or (<= 1 main_~n~0) (<= 0 main_~i~0)) [2020-09-25 11:25:14,100 INFO L268 CegarLoopResult]: For program point L15(line 15) no Hoare annotation was computed. [2020-09-25 11:25:14,100 INFO L268 CegarLoopResult]: For program point L15-1(line 15) no Hoare annotation was computed. [2020-09-25 11:25:14,100 INFO L268 CegarLoopResult]: For program point L15-2(line 15) no Hoare annotation was computed. [2020-09-25 11:25:14,100 INFO L268 CegarLoopResult]: For program point L15-3(line 15) no Hoare annotation was computed. [2020-09-25 11:25:14,101 INFO L268 CegarLoopResult]: For program point L15-4(line 15) no Hoare annotation was computed. [2020-09-25 11:25:14,101 INFO L268 CegarLoopResult]: For program point L24(line 24) no Hoare annotation was computed. [2020-09-25 11:25:14,101 INFO L268 CegarLoopResult]: For program point L24-3(lines 24 26) no Hoare annotation was computed. [2020-09-25 11:25:14,101 INFO L268 CegarLoopResult]: For program point L20(line 20) no Hoare annotation was computed. [2020-09-25 11:25:14,101 INFO L268 CegarLoopResult]: For program point L24-4(line 24) no Hoare annotation was computed. [2020-09-25 11:25:14,102 INFO L268 CegarLoopResult]: For program point L20-1(line 20) no Hoare annotation was computed. [2020-09-25 11:25:14,102 INFO L268 CegarLoopResult]: For program point L24-5(line 24) no Hoare annotation was computed. [2020-09-25 11:25:14,102 INFO L264 CegarLoopResult]: At program point L24-6(lines 24 26) the Hoare annotation is: (and (<= 1 main_~n~0) (<= (+ main_~i~0 1) main_~n~0)) [2020-09-25 11:25:14,102 INFO L268 CegarLoopResult]: For program point L16(line 16) no Hoare annotation was computed. [2020-09-25 11:25:14,102 INFO L268 CegarLoopResult]: For program point L16-1(line 16) no Hoare annotation was computed. [2020-09-25 11:25:14,102 INFO L268 CegarLoopResult]: For program point L16-2(line 16) no Hoare annotation was computed. [2020-09-25 11:25:14,102 INFO L268 CegarLoopResult]: For program point L25(line 25) no Hoare annotation was computed. [2020-09-25 11:25:14,102 INFO L268 CegarLoopResult]: For program point L25-3(line 25) no Hoare annotation was computed. [2020-09-25 11:25:14,103 INFO L268 CegarLoopResult]: For program point L21(line 21) no Hoare annotation was computed. [2020-09-25 11:25:14,103 INFO L268 CegarLoopResult]: For program point L25-4(line 25) no Hoare annotation was computed. [2020-09-25 11:25:14,103 INFO L268 CegarLoopResult]: For program point L21-1(line 21) no Hoare annotation was computed. [2020-09-25 11:25:14,103 INFO L264 CegarLoopResult]: At program point L25-5(lines 25 26) the Hoare annotation is: (and (<= 1 main_~n~0) (<= (+ main_~i~0 1) main_~n~0) (<= (+ main_~j~0 3) (+ main_~i~0 (* 2 main_~n~0)))) [2020-09-25 11:25:14,103 INFO L268 CegarLoopResult]: For program point L17(line 17) no Hoare annotation was computed. [2020-09-25 11:25:14,103 INFO L268 CegarLoopResult]: For program point L17-1(line 17) no Hoare annotation was computed. [2020-09-25 11:25:14,103 INFO L268 CegarLoopResult]: For program point L17-2(line 17) no Hoare annotation was computed. [2020-09-25 11:25:14,103 INFO L268 CegarLoopResult]: For program point mainFINAL(lines 14 29) no Hoare annotation was computed. [2020-09-25 11:25:14,103 INFO L271 CegarLoopResult]: At program point mainENTRY(lines 14 29) the Hoare annotation is: true [2020-09-25 11:25:14,104 INFO L264 CegarLoopResult]: At program point L26(line 26) the Hoare annotation is: (let ((.cse0 (+ main_~i~0 (* 2 main_~n~0)))) (and (<= (+ main_~k~0 4) .cse0) (<= 1 main_~n~0) (<= (+ main_~i~0 1) main_~n~0) (<= (+ main_~j~0 3) .cse0))) [2020-09-25 11:25:14,104 INFO L268 CegarLoopResult]: For program point L26-1(lines 25 26) no Hoare annotation was computed. [2020-09-25 11:25:14,104 INFO L268 CegarLoopResult]: For program point L22(line 22) no Hoare annotation was computed. [2020-09-25 11:25:14,104 INFO L268 CegarLoopResult]: For program point L22-1(line 22) no Hoare annotation was computed. [2020-09-25 11:25:14,104 INFO L268 CegarLoopResult]: For program point L18(line 18) no Hoare annotation was computed. [2020-09-25 11:25:14,104 INFO L268 CegarLoopResult]: For program point L18-1(line 18) no Hoare annotation was computed. [2020-09-25 11:25:14,104 INFO L268 CegarLoopResult]: For program point L18-2(line 18) no Hoare annotation was computed. [2020-09-25 11:25:14,104 INFO L271 CegarLoopResult]: At program point __VERIFIER_assertENTRY(lines 6 11) the Hoare annotation is: true [2020-09-25 11:25:14,105 INFO L268 CegarLoopResult]: For program point __VERIFIER_assertEXIT(lines 6 11) no Hoare annotation was computed. [2020-09-25 11:25:14,105 INFO L268 CegarLoopResult]: For program point L8(line 8) no Hoare annotation was computed. [2020-09-25 11:25:14,105 INFO L268 CegarLoopResult]: For program point L7(lines 7 9) no Hoare annotation was computed. [2020-09-25 11:25:14,105 INFO L268 CegarLoopResult]: For program point L7-2(lines 6 11) no Hoare annotation was computed. [2020-09-25 11:25:14,105 INFO L268 CegarLoopResult]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 8) no Hoare annotation was computed. [2020-09-25 11:25:14,133 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.09 11:25:14 BoogieIcfgContainer [2020-09-25 11:25:14,133 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-25 11:25:14,137 INFO L168 Benchmark]: Toolchain (without parser) took 5781.16 ms. Allocated memory was 140.5 MB in the beginning and 245.9 MB in the end (delta: 105.4 MB). Free memory was 104.1 MB in the beginning and 134.0 MB in the end (delta: -30.0 MB). Peak memory consumption was 75.4 MB. Max. memory is 7.1 GB. [2020-09-25 11:25:14,138 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 140.5 MB. Free memory was 122.0 MB in the beginning and 121.8 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. [2020-09-25 11:25:14,139 INFO L168 Benchmark]: CACSL2BoogieTranslator took 323.72 ms. Allocated memory is still 140.5 MB. Free memory was 103.4 MB in the beginning and 93.4 MB in the end (delta: 10.0 MB). Peak memory consumption was 10.0 MB. Max. memory is 7.1 GB. [2020-09-25 11:25:14,140 INFO L168 Benchmark]: Boogie Preprocessor took 115.42 ms. Allocated memory was 140.5 MB in the beginning and 203.9 MB in the end (delta: 63.4 MB). Free memory was 93.4 MB in the beginning and 183.0 MB in the end (delta: -89.6 MB). Peak memory consumption was 13.5 MB. Max. memory is 7.1 GB. [2020-09-25 11:25:14,141 INFO L168 Benchmark]: RCFGBuilder took 412.86 ms. Allocated memory is still 203.9 MB. Free memory was 182.7 MB in the beginning and 166.0 MB in the end (delta: 16.7 MB). Peak memory consumption was 16.7 MB. Max. memory is 7.1 GB. [2020-09-25 11:25:14,142 INFO L168 Benchmark]: TraceAbstraction took 4916.70 ms. Allocated memory was 203.9 MB in the beginning and 245.9 MB in the end (delta: 41.9 MB). Free memory was 165.3 MB in the beginning and 134.0 MB in the end (delta: 31.3 MB). Peak memory consumption was 73.2 MB. Max. memory is 7.1 GB. [2020-09-25 11:25:14,147 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 140.5 MB. Free memory was 122.0 MB in the beginning and 121.8 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 323.72 ms. Allocated memory is still 140.5 MB. Free memory was 103.4 MB in the beginning and 93.4 MB in the end (delta: 10.0 MB). Peak memory consumption was 10.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 115.42 ms. Allocated memory was 140.5 MB in the beginning and 203.9 MB in the end (delta: 63.4 MB). Free memory was 93.4 MB in the beginning and 183.0 MB in the end (delta: -89.6 MB). Peak memory consumption was 13.5 MB. Max. memory is 7.1 GB. * RCFGBuilder took 412.86 ms. Allocated memory is still 203.9 MB. Free memory was 182.7 MB in the beginning and 166.0 MB in the end (delta: 16.7 MB). Peak memory consumption was 16.7 MB. Max. memory is 7.1 GB. * TraceAbstraction took 4916.70 ms. Allocated memory was 203.9 MB in the beginning and 245.9 MB in the end (delta: 41.9 MB). Free memory was 165.3 MB in the beginning and 134.0 MB in the end (delta: 31.3 MB). Peak memory consumption was 73.2 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 8]: 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: 14]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 24]: Loop Invariant Derived loop invariant: 1 <= n && i + 1 <= n - InvariantResult [Line: 23]: Loop Invariant Derived loop invariant: 1 <= n || 0 <= i - InvariantResult [Line: 25]: Loop Invariant Derived loop invariant: (1 <= n && i + 1 <= n) && j + 3 <= i + 2 * n - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 59 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 4.6s, OverallIterations: 2, TraceHistogramMax: 2, AutomataDifference: 0.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.1s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 88 SDtfs, 231 SDslu, 83 SDs, 0 SdLazy, 491 SolverSat, 23 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 32 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=54occurred 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, 2 MinimizatonAttempts, 34 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 10 LocationsWithAnnotation, 12 PreInvPairs, 21 NumberOfFragments, 69 HoareAnnotationTreeSize, 12 FomulaSimplifications, 221 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 10 FomulaSimplificationsInter, 32 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 3.4s InterpolantComputationTime, 77 NumberOfCodeBlocks, 77 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 75 ConstructedInterpolants, 0 QuantifiedInterpolants, 7119 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 1 PerfectInterpolantSequences, 3/4 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...