/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SequenceOfStatements --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=SMALLESTAMONGWIDE --traceabstraction.additional.smt.options tolerance=0.2 --traceabstraction.additional.smt.options log-additional-information=true --traceabstraction.additional.smt.options unknown-allowed=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/array-examples/sanfoundry_24-1.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-14 17:47:27,257 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-14 17:47:27,263 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-14 17:47:27,326 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-14 17:47:27,327 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-14 17:47:27,340 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-14 17:47:27,344 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-14 17:47:27,351 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-14 17:47:27,355 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-14 17:47:27,361 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-14 17:47:27,362 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-14 17:47:27,363 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-14 17:47:27,363 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-14 17:47:27,368 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-14 17:47:27,373 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-14 17:47:27,376 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-14 17:47:27,379 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-14 17:47:27,382 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-14 17:47:27,384 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-14 17:47:27,396 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-14 17:47:27,399 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-14 17:47:27,401 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-14 17:47:27,402 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-14 17:47:27,404 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-14 17:47:27,420 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-14 17:47:27,421 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-14 17:47:27,421 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-14 17:47:27,422 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-14 17:47:27,423 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-14 17:47:27,426 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-14 17:47:27,426 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-14 17:47:27,427 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-14 17:47:27,428 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-14 17:47:27,429 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-14 17:47:27,430 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-14 17:47:27,431 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-14 17:47:27,432 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-14 17:47:27,432 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-14 17:47:27,432 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-14 17:47:27,434 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-14 17:47:27,435 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-14 17:47:27,437 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-14 17:47:27,492 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-14 17:47:27,493 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-14 17:47:27,497 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-14 17:47:27,498 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-14 17:47:27,498 INFO L138 SettingsManager]: * Use SBE=true [2020-10-14 17:47:27,498 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-14 17:47:27,499 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-14 17:47:27,499 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-14 17:47:27,499 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-14 17:47:27,500 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-14 17:47:27,501 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-14 17:47:27,501 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-14 17:47:27,501 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-14 17:47:27,502 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-14 17:47:27,502 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-14 17:47:27,502 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-14 17:47:27,502 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-14 17:47:27,503 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-14 17:47:27,503 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-14 17:47:27,503 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-14 17:47:27,503 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-14 17:47:27,503 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-14 17:47:27,504 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-14 17:47:27,504 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-14 17:47:27,504 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-14 17:47:27,504 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-14 17:47:27,505 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-14 17:47:27,505 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-14 17:47:27,505 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-14 17:47:27,505 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;unknown-allowed=true; [2020-10-14 17:47:27,840 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-14 17:47:27,856 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-14 17:47:27,864 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-14 17:47:27,866 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-14 17:47:27,866 INFO L275 PluginConnector]: CDTParser initialized [2020-10-14 17:47:27,867 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/array-examples/sanfoundry_24-1.i [2020-10-14 17:47:27,951 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/03ff213ab/8616e260b0b34695b4a7f84c507abcba/FLAG72b934dbd [2020-10-14 17:47:28,542 INFO L306 CDTParser]: Found 1 translation units. [2020-10-14 17:47:28,543 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/array-examples/sanfoundry_24-1.i [2020-10-14 17:47:28,552 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/03ff213ab/8616e260b0b34695b4a7f84c507abcba/FLAG72b934dbd [2020-10-14 17:47:28,789 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/03ff213ab/8616e260b0b34695b4a7f84c507abcba [2020-10-14 17:47:28,801 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-14 17:47:28,803 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-14 17:47:28,805 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-14 17:47:28,805 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-14 17:47:28,809 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-14 17:47:28,811 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 05:47:28" (1/1) ... [2020-10-14 17:47:28,815 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6ef711d0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:47:28, skipping insertion in model container [2020-10-14 17:47:28,815 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 05:47:28" (1/1) ... [2020-10-14 17:47:28,825 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-14 17:47:28,852 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-14 17:47:29,068 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-14 17:47:29,074 INFO L203 MainTranslator]: Completed pre-run [2020-10-14 17:47:29,100 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-14 17:47:29,124 INFO L208 MainTranslator]: Completed translation [2020-10-14 17:47:29,125 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:47:29 WrapperNode [2020-10-14 17:47:29,126 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-14 17:47:29,127 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-14 17:47:29,127 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-14 17:47:29,127 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-14 17:47:29,250 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:47:29" (1/1) ... [2020-10-14 17:47:29,251 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:47:29" (1/1) ... [2020-10-14 17:47:29,265 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:47:29" (1/1) ... [2020-10-14 17:47:29,265 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:47:29" (1/1) ... [2020-10-14 17:47:29,297 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:47:29" (1/1) ... [2020-10-14 17:47:29,308 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:47:29" (1/1) ... [2020-10-14 17:47:29,317 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:47:29" (1/1) ... [2020-10-14 17:47:29,321 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-14 17:47:29,322 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-14 17:47:29,322 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-14 17:47:29,322 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-14 17:47:29,326 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:47:29" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-14 17:47:29,397 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-14 17:47:29,398 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-14 17:47:29,398 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-10-14 17:47:29,398 INFO L138 BoogieDeclarations]: Found implementation of procedure printEven [2020-10-14 17:47:29,398 INFO L138 BoogieDeclarations]: Found implementation of procedure printOdd [2020-10-14 17:47:29,398 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-14 17:47:29,399 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-14 17:47:29,399 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-14 17:47:29,399 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-10-14 17:47:29,399 INFO L130 BoogieDeclarations]: Found specification of procedure printEven [2020-10-14 17:47:29,399 INFO L130 BoogieDeclarations]: Found specification of procedure printOdd [2020-10-14 17:47:29,400 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-14 17:47:29,400 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-14 17:47:29,400 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-14 17:47:29,400 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-14 17:47:29,401 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-14 17:47:29,401 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-14 17:47:29,401 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-14 17:47:29,751 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-14 17:47:29,752 INFO L295 CfgBuilder]: Removed 3 assume(true) statements. [2020-10-14 17:47:29,760 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 05:47:29 BoogieIcfgContainer [2020-10-14 17:47:29,760 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-14 17:47:29,762 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-14 17:47:29,762 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-14 17:47:29,768 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-14 17:47:29,768 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.10 05:47:28" (1/3) ... [2020-10-14 17:47:29,770 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7c18530d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 05:47:29, skipping insertion in model container [2020-10-14 17:47:29,771 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:47:29" (2/3) ... [2020-10-14 17:47:29,771 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7c18530d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 05:47:29, skipping insertion in model container [2020-10-14 17:47:29,772 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 05:47:29" (3/3) ... [2020-10-14 17:47:29,775 INFO L109 eAbstractionObserver]: Analyzing ICFG sanfoundry_24-1.i [2020-10-14 17:47:29,794 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-14 17:47:29,805 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-14 17:47:29,837 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-14 17:47:29,896 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-14 17:47:29,896 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-14 17:47:29,896 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-14 17:47:29,896 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-14 17:47:29,897 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-14 17:47:29,897 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-14 17:47:29,897 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-14 17:47:29,897 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-14 17:47:29,942 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states. [2020-10-14 17:47:29,951 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-10-14 17:47:29,951 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 17:47:29,953 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 17:47:29,953 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 17:47:29,960 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 17:47:29,961 INFO L82 PathProgramCache]: Analyzing trace with hash -762079996, now seen corresponding path program 1 times [2020-10-14 17:47:29,972 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 17:47:29,973 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1987804035] [2020-10-14 17:47:29,973 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 17:47:30,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:47:30,163 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:47:30,443 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:47:30,893 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:47:30,894 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-10-14 17:47:30,894 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 17:47:30,895 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 769 [2020-10-14 17:47:30,899 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 17:47:30,899 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 17:47:30,900 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-14 17:47:30,900 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-10-14 17:47:30,900 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-14 17:47:30,901 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-10-14 17:47:31,176 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 17:47:31,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:47:31,183 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:47:31,188 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:47:31,189 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 17:47:31,189 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:47:31,190 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-14 17:47:31,190 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 17:47:31,190 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 17:47:31,191 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 17:47:31,191 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:47:31,191 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 17:47:31,192 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 17:47:31,205 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 17:47:31,207 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1987804035] [2020-10-14 17:47:31,210 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 17:47:31,211 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-14 17:47:31,213 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1784504717] [2020-10-14 17:47:31,220 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-14 17:47:31,221 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 17:47:31,238 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-14 17:47:31,240 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2020-10-14 17:47:31,243 INFO L87 Difference]: Start difference. First operand 39 states. Second operand 9 states. [2020-10-14 17:47:31,716 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 17:47:31,716 INFO L93 Difference]: Finished difference Result 74 states and 94 transitions. [2020-10-14 17:47:31,717 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-14 17:47:31,719 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 16 [2020-10-14 17:47:31,720 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 17:47:31,731 INFO L225 Difference]: With dead ends: 74 [2020-10-14 17:47:31,732 INFO L226 Difference]: Without dead ends: 38 [2020-10-14 17:47:31,738 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=40, Invalid=142, Unknown=0, NotChecked=0, Total=182 [2020-10-14 17:47:31,764 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2020-10-14 17:47:31,794 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 38. [2020-10-14 17:47:31,796 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38 states. [2020-10-14 17:47:31,798 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 42 transitions. [2020-10-14 17:47:31,800 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 42 transitions. Word has length 16 [2020-10-14 17:47:31,801 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 17:47:31,801 INFO L479 AbstractCegarLoop]: Abstraction has 38 states and 42 transitions. [2020-10-14 17:47:31,801 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-14 17:47:31,801 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 42 transitions. [2020-10-14 17:47:31,802 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-10-14 17:47:31,803 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 17:47:31,803 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 17:47:31,804 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-14 17:47:31,804 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 17:47:31,805 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 17:47:31,805 INFO L82 PathProgramCache]: Analyzing trace with hash -1251209583, now seen corresponding path program 1 times [2020-10-14 17:47:31,805 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 17:47:31,806 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [924600570] [2020-10-14 17:47:31,806 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 17:47:31,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:47:31,838 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:47:31,863 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:47:32,059 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:47:32,592 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:47:32,593 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-10-14 17:47:32,593 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 17:47:32,594 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 765 [2020-10-14 17:47:32,594 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 17:47:32,594 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 17:47:32,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-14 17:47:32,600 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-10-14 17:47:32,600 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-14 17:47:32,600 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 6 [2020-10-14 17:47:32,787 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 17:47:32,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:47:32,792 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:47:32,797 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:47:32,797 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 17:47:32,797 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:47:32,798 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 17:47:32,799 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 17:47:32,799 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 17:47:32,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 17:47:32,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:47:32,801 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 17:47:32,801 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-14 17:47:32,806 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 17:47:32,807 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [924600570] [2020-10-14 17:47:32,807 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 17:47:32,807 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-14 17:47:32,808 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [713347156] [2020-10-14 17:47:32,810 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-14 17:47:32,811 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 17:47:32,812 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-14 17:47:32,812 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2020-10-14 17:47:32,812 INFO L87 Difference]: Start difference. First operand 38 states and 42 transitions. Second operand 9 states. [2020-10-14 17:47:33,158 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 17:47:33,159 INFO L93 Difference]: Finished difference Result 38 states and 42 transitions. [2020-10-14 17:47:33,159 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-14 17:47:33,159 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 18 [2020-10-14 17:47:33,160 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 17:47:33,160 INFO L225 Difference]: With dead ends: 38 [2020-10-14 17:47:33,161 INFO L226 Difference]: Without dead ends: 0 [2020-10-14 17:47:33,163 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2020-10-14 17:47:33,163 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-14 17:47:33,163 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-14 17:47:33,163 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-14 17:47:33,164 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-14 17:47:33,164 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 18 [2020-10-14 17:47:33,164 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 17:47:33,164 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-14 17:47:33,165 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-14 17:47:33,165 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-14 17:47:33,165 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-14 17:47:33,165 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-14 17:47:33,168 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-10-14 17:47:33,369 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-10-14 17:47:33,369 INFO L264 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#valid)| |#valid|)) [2020-10-14 17:47:33,369 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-10-14 17:47:33,370 INFO L271 CegarLoopResult]: At program point printOddENTRY(lines 7 9) the Hoare annotation is: true [2020-10-14 17:47:33,371 INFO L264 CegarLoopResult]: At program point L8(line 8) the Hoare annotation is: (or (not (let ((.cse0 (+ |printOdd_#in~i| 1))) (<= .cse0 (* 2 (div .cse0 2))))) (<= (+ (* 2 (div printOdd_~i 2)) 1) printOdd_~i)) [2020-10-14 17:47:33,371 INFO L268 CegarLoopResult]: For program point printOddFINAL(lines 7 9) no Hoare annotation was computed. [2020-10-14 17:47:33,371 INFO L268 CegarLoopResult]: For program point printOddEXIT(lines 7 9) no Hoare annotation was computed. [2020-10-14 17:47:33,371 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-10-14 17:47:33,372 INFO L271 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true [2020-10-14 17:47:33,372 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-10-14 17:47:33,372 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-10-14 17:47:33,372 INFO L268 CegarLoopResult]: For program point printEvenEXIT(lines 4 6) no Hoare annotation was computed. [2020-10-14 17:47:33,373 INFO L271 CegarLoopResult]: At program point printEvenENTRY(lines 4 6) the Hoare annotation is: true [2020-10-14 17:47:33,373 INFO L268 CegarLoopResult]: For program point printEvenFINAL(lines 4 6) no Hoare annotation was computed. [2020-10-14 17:47:33,373 INFO L264 CegarLoopResult]: At program point L5(line 5) the Hoare annotation is: (or (not (<= |printEven_#in~i| (* 2 (div |printEven_#in~i| 2)))) (<= printEven_~i (* 2 (div printEven_~i 2)))) [2020-10-14 17:47:33,373 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 10 36) no Hoare annotation was computed. [2020-10-14 17:47:33,373 INFO L268 CegarLoopResult]: For program point L23(lines 23 26) no Hoare annotation was computed. [2020-10-14 17:47:33,374 INFO L264 CegarLoopResult]: At program point L32(line 32) the Hoare annotation is: (let ((.cse0 (+ |main_#t~mem8| 1))) (<= .cse0 (* 2 (div .cse0 2)))) [2020-10-14 17:47:33,374 INFO L268 CegarLoopResult]: For program point L32-1(line 32) no Hoare annotation was computed. [2020-10-14 17:47:33,374 INFO L268 CegarLoopResult]: For program point L28-2(lines 28 34) no Hoare annotation was computed. [2020-10-14 17:47:33,375 INFO L271 CegarLoopResult]: At program point L28-3(lines 28 34) the Hoare annotation is: true [2020-10-14 17:47:33,375 INFO L268 CegarLoopResult]: For program point L28-4(lines 28 34) no Hoare annotation was computed. [2020-10-14 17:47:33,375 INFO L268 CegarLoopResult]: For program point L16-2(lines 16 19) no Hoare annotation was computed. [2020-10-14 17:47:33,375 INFO L271 CegarLoopResult]: At program point L16-3(lines 16 19) the Hoare annotation is: true [2020-10-14 17:47:33,375 INFO L268 CegarLoopResult]: For program point L16-4(lines 16 19) no Hoare annotation was computed. [2020-10-14 17:47:33,376 INFO L264 CegarLoopResult]: At program point L25(line 25) the Hoare annotation is: (<= |main_#t~mem5| (* 2 (div |main_#t~mem5| 2))) [2020-10-14 17:47:33,376 INFO L268 CegarLoopResult]: For program point L25-1(line 25) no Hoare annotation was computed. [2020-10-14 17:47:33,376 INFO L268 CegarLoopResult]: For program point L21-2(lines 21 27) no Hoare annotation was computed. [2020-10-14 17:47:33,376 INFO L271 CegarLoopResult]: At program point L21-3(lines 21 27) the Hoare annotation is: true [2020-10-14 17:47:33,376 INFO L268 CegarLoopResult]: For program point L21-4(lines 21 27) no Hoare annotation was computed. [2020-10-14 17:47:33,376 INFO L268 CegarLoopResult]: For program point mainFINAL(lines 10 36) no Hoare annotation was computed. [2020-10-14 17:47:33,377 INFO L268 CegarLoopResult]: For program point L30(lines 30 33) no Hoare annotation was computed. [2020-10-14 17:47:33,378 INFO L264 CegarLoopResult]: At program point mainENTRY(lines 10 36) the Hoare annotation is: (= |old(#valid)| |#valid|) [2020-10-14 17:47:33,378 INFO L268 CegarLoopResult]: For program point L3-3(line 3) no Hoare annotation was computed. [2020-10-14 17:47:33,378 INFO L271 CegarLoopResult]: At program point __VERIFIER_assertENTRY(line 3) the Hoare annotation is: true [2020-10-14 17:47:33,378 INFO L268 CegarLoopResult]: For program point __VERIFIER_assertEXIT(line 3) no Hoare annotation was computed. [2020-10-14 17:47:33,379 INFO L268 CegarLoopResult]: For program point L3(line 3) no Hoare annotation was computed. [2020-10-14 17:47:33,379 INFO L268 CegarLoopResult]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 3) no Hoare annotation was computed. [2020-10-14 17:47:33,379 INFO L268 CegarLoopResult]: For program point L3-1(line 3) no Hoare annotation was computed. [2020-10-14 17:47:33,396 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.10 05:47:33 BoogieIcfgContainer [2020-10-14 17:47:33,397 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-14 17:47:33,406 INFO L168 Benchmark]: Toolchain (without parser) took 4596.05 ms. Allocated memory was 145.8 MB in the beginning and 245.4 MB in the end (delta: 99.6 MB). Free memory was 101.8 MB in the beginning and 190.1 MB in the end (delta: -88.3 MB). Peak memory consumption was 11.3 MB. Max. memory is 7.1 GB. [2020-10-14 17:47:33,410 INFO L168 Benchmark]: CDTParser took 0.33 ms. Allocated memory is still 145.8 MB. Free memory was 120.3 MB in the beginning and 119.9 MB in the end (delta: 419.5 kB). Peak memory consumption was 419.5 kB. Max. memory is 7.1 GB. [2020-10-14 17:47:33,411 INFO L168 Benchmark]: CACSL2BoogieTranslator took 321.67 ms. Allocated memory is still 145.8 MB. Free memory was 101.3 MB in the beginning and 91.3 MB in the end (delta: 10.0 MB). Peak memory consumption was 10.0 MB. Max. memory is 7.1 GB. [2020-10-14 17:47:33,414 INFO L168 Benchmark]: Boogie Preprocessor took 194.32 ms. Allocated memory was 145.8 MB in the beginning and 205.0 MB in the end (delta: 59.2 MB). Free memory was 91.3 MB in the beginning and 182.0 MB in the end (delta: -90.6 MB). Peak memory consumption was 10.1 MB. Max. memory is 7.1 GB. [2020-10-14 17:47:33,418 INFO L168 Benchmark]: RCFGBuilder took 438.84 ms. Allocated memory is still 205.0 MB. Free memory was 182.0 MB in the beginning and 165.6 MB in the end (delta: 16.4 MB). Peak memory consumption was 16.4 MB. Max. memory is 7.1 GB. [2020-10-14 17:47:33,420 INFO L168 Benchmark]: TraceAbstraction took 3635.03 ms. Allocated memory was 205.0 MB in the beginning and 245.4 MB in the end (delta: 40.4 MB). Free memory was 164.6 MB in the beginning and 190.1 MB in the end (delta: -25.5 MB). Peak memory consumption was 14.9 MB. Max. memory is 7.1 GB. [2020-10-14 17:47:33,432 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.33 ms. Allocated memory is still 145.8 MB. Free memory was 120.3 MB in the beginning and 119.9 MB in the end (delta: 419.5 kB). Peak memory consumption was 419.5 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 321.67 ms. Allocated memory is still 145.8 MB. Free memory was 101.3 MB in the beginning and 91.3 MB in the end (delta: 10.0 MB). Peak memory consumption was 10.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 194.32 ms. Allocated memory was 145.8 MB in the beginning and 205.0 MB in the end (delta: 59.2 MB). Free memory was 91.3 MB in the beginning and 182.0 MB in the end (delta: -90.6 MB). Peak memory consumption was 10.1 MB. Max. memory is 7.1 GB. * RCFGBuilder took 438.84 ms. Allocated memory is still 205.0 MB. Free memory was 182.0 MB in the beginning and 165.6 MB in the end (delta: 16.4 MB). Peak memory consumption was 16.4 MB. Max. memory is 7.1 GB. * TraceAbstraction took 3635.03 ms. Allocated memory was 205.0 MB in the beginning and 245.4 MB in the end (delta: 40.4 MB). Free memory was 164.6 MB in the beginning and 190.1 MB in the end (delta: -25.5 MB). Peak memory consumption was 14.9 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 3]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 21]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 16]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 28]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 6 procedures, 39 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 3.2s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.2s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 64 SDtfs, 36 SDslu, 280 SDs, 0 SdLazy, 263 SolverSat, 17 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 29 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=39occurred 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, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 14 LocationsWithAnnotation, 21 PreInvPairs, 25 NumberOfFragments, 77 HoareAnnotationTreeSize, 21 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 14 FomulaSimplificationsInter, 139 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 2.0s InterpolantComputationTime, 34 NumberOfCodeBlocks, 34 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 32 ConstructedInterpolants, 0 QuantifiedInterpolants, 2026 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...