/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/loops-crafted-1/mono-crafted_12.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 11:25:57,889 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 11:25:57,894 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 11:25:57,940 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 11:25:57,941 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 11:25:57,953 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 11:25:57,955 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 11:25:57,960 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 11:25:57,963 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 11:25:57,967 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 11:25:57,968 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 11:25:57,970 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 11:25:57,970 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 11:25:57,974 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 11:25:57,977 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 11:25:57,979 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 11:25:57,981 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 11:25:57,983 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 11:25:57,985 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 11:25:57,995 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 11:25:57,998 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 11:25:58,000 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 11:25:58,001 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 11:25:58,002 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 11:25:58,005 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 11:25:58,006 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 11:25:58,006 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 11:25:58,010 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 11:25:58,011 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 11:25:58,013 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 11:25:58,014 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 11:25:58,015 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 11:25:58,016 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 11:25:58,017 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 11:25:58,018 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 11:25:58,019 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 11:25:58,020 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 11:25:58,020 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 11:25:58,020 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 11:25:58,021 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 11:25:58,023 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 11:25:58,024 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 11:25:58,072 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 11:25:58,072 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 11:25:58,075 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 11:25:58,076 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 11:25:58,076 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 11:25:58,077 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 11:25:58,077 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 11:25:58,077 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 11:25:58,077 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 11:25:58,078 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 11:25:58,079 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 11:25:58,079 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 11:25:58,079 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 11:25:58,080 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 11:25:58,080 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 11:25:58,080 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 11:25:58,080 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 11:25:58,081 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 11:25:58,081 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 11:25:58,081 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 11:25:58,081 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 11:25:58,081 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 11:25:58,082 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 11:25:58,083 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 11:25:58,084 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 11:25:58,084 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 11:25:58,084 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 11:25:58,084 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 11:25:58,084 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 11:25:58,085 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 11:25:58,547 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 11:25:58,566 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 11:25:58,570 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 11:25:58,571 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 11:25:58,571 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 11:25:58,572 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loops-crafted-1/mono-crafted_12.c [2020-09-25 11:25:58,668 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/810d7c9e4/37b22ed9dc5b425fba12a4e661b36368/FLAG0851cb99e [2020-09-25 11:25:59,224 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 11:25:59,225 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/loops-crafted-1/mono-crafted_12.c [2020-09-25 11:25:59,233 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/810d7c9e4/37b22ed9dc5b425fba12a4e661b36368/FLAG0851cb99e [2020-09-25 11:25:59,564 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/810d7c9e4/37b22ed9dc5b425fba12a4e661b36368 [2020-09-25 11:25:59,579 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 11:25:59,586 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 11:25:59,587 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 11:25:59,589 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 11:25:59,593 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 11:25:59,594 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 11:25:59" (1/1) ... [2020-09-25 11:25:59,600 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@112bbb30 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:25:59, skipping insertion in model container [2020-09-25 11:25:59,600 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 11:25:59" (1/1) ... [2020-09-25 11:25:59,611 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 11:25:59,638 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 11:25:59,846 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 11:25:59,852 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 11:25:59,872 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 11:25:59,891 INFO L208 MainTranslator]: Completed translation [2020-09-25 11:25:59,892 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:25:59 WrapperNode [2020-09-25 11:25:59,892 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 11:25:59,893 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 11:25:59,893 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 11:25:59,893 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 11:25:59,911 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:25:59" (1/1) ... [2020-09-25 11:25:59,912 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:25:59" (1/1) ... [2020-09-25 11:25:59,918 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:25:59" (1/1) ... [2020-09-25 11:25:59,918 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:25:59" (1/1) ... [2020-09-25 11:26:00,005 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:25:59" (1/1) ... [2020-09-25 11:26:00,012 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:25:59" (1/1) ... [2020-09-25 11:26:00,013 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:25:59" (1/1) ... [2020-09-25 11:26:00,014 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 11:26:00,015 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 11:26:00,015 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 11:26:00,015 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 11:26:00,016 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:25:59" (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 11:26:00,088 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 11:26:00,088 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 11:26:00,089 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-09-25 11:26:00,089 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 11:26:00,089 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 11:26:00,089 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-09-25 11:26:00,089 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 11:26:00,089 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 11:26:00,090 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 11:26:00,288 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 11:26:00,288 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-09-25 11:26:00,294 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 11:26:00 BoogieIcfgContainer [2020-09-25 11:26:00,294 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 11:26:00,295 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 11:26:00,296 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 11:26:00,299 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 11:26:00,300 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 11:25:59" (1/3) ... [2020-09-25 11:26:00,301 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@775ccc36 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 11:26:00, skipping insertion in model container [2020-09-25 11:26:00,301 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:25:59" (2/3) ... [2020-09-25 11:26:00,302 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@775ccc36 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 11:26:00, skipping insertion in model container [2020-09-25 11:26:00,302 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 11:26:00" (3/3) ... [2020-09-25 11:26:00,304 INFO L109 eAbstractionObserver]: Analyzing ICFG mono-crafted_12.c [2020-09-25 11:26:00,317 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 11:26:00,329 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 11:26:00,382 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 11:26:00,437 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 11:26:00,437 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 11:26:00,437 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 11:26:00,437 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 11:26:00,438 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 11:26:00,438 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 11:26:00,438 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 11:26:00,438 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 11:26:00,457 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states. [2020-09-25 11:26:00,463 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-09-25 11:26:00,463 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 11:26:00,464 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 11:26:00,465 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 11:26:00,472 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 11:26:00,472 INFO L82 PathProgramCache]: Analyzing trace with hash -103545344, now seen corresponding path program 1 times [2020-09-25 11:26:00,481 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 11:26:00,482 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1411546480] [2020-09-25 11:26:00,482 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 11:26:00,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:26:00,588 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:26:00,668 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:26:00,839 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:26:00,840 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-09-25 11:26:00,840 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 11:26:00,840 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 262 [2020-09-25 11:26:00,844 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:26:00,844 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:26:00,844 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 11:26:00,845 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-09-25 11:26:00,845 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 11:26:00,845 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-25 11:26:03,099 WARN L860 $PredicateComparison]: unable to prove that (let ((.cse10 (div c_main_~z~0 2))) (let ((.cse2 (+ .cse10 1))) (and (let ((.cse6 (* 2 .cse10))) (let ((.cse8 (= c_main_~z~0 .cse6)) (.cse9 (* 4294967296 (div c_main_~z~0 4294967296))) (.cse7 (* .cse10 (- 2)))) (let ((.cse1 (div (+ c_main_~z~0 .cse7) 4294967296)) (.cse0 (or .cse8 (<= .cse9 c_main_~z~0))) (.cse3 (< c_main_~z~0 .cse9)) (.cse4 (not .cse8)) (.cse5 (div (+ c_main_~z~0 .cse7 (- 2)) 4294967296))) (or (and .cse0 (<= (+ .cse1 1) 0)) (<= .cse2 0) (<= c_main_~z~0 0) (and .cse3 .cse4 (<= (+ .cse5 1) 0)) (and (<= c_main_~z~0 (+ .cse6 (* 4294967296 .cse1))) .cse0) (and .cse3 .cse4 (<= c_main_~z~0 (+ (* 4294967296 .cse5) .cse6 2))))))) (or (< 0 .cse2) (<= 0 c_main_~z~0))))) is different from true [2020-09-25 11:26:03,129 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 11:26:03,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:26:03,133 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:26:03,135 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:26:03,136 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 11:26:03,136 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:26:03,136 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 11:26:03,137 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:26:03,137 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:26:03,137 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 11:26:03,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:26:03,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 11:26:03,138 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:26:03,148 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 11:26:03,149 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1411546480] [2020-09-25 11:26:03,151 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 11:26:03,152 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-25 11:26:03,153 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1158570540] [2020-09-25 11:26:03,159 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-25 11:26:03,160 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 11:26:03,177 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-25 11:26:03,178 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=8, Unknown=1, NotChecked=4, Total=20 [2020-09-25 11:26:03,181 INFO L87 Difference]: Start difference. First operand 25 states. Second operand 5 states. [2020-09-25 11:26:03,261 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 11:26:03,261 INFO L93 Difference]: Finished difference Result 38 states and 44 transitions. [2020-09-25 11:26:03,262 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 11:26:03,264 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 12 [2020-09-25 11:26:03,264 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 11:26:03,280 INFO L225 Difference]: With dead ends: 38 [2020-09-25 11:26:03,280 INFO L226 Difference]: Without dead ends: 19 [2020-09-25 11:26:03,285 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=7, Invalid=8, Unknown=1, NotChecked=4, Total=20 [2020-09-25 11:26:03,303 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2020-09-25 11:26:03,322 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 18. [2020-09-25 11:26:03,323 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2020-09-25 11:26:03,324 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 19 transitions. [2020-09-25 11:26:03,326 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 19 transitions. Word has length 12 [2020-09-25 11:26:03,327 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 11:26:03,327 INFO L479 AbstractCegarLoop]: Abstraction has 18 states and 19 transitions. [2020-09-25 11:26:03,327 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-25 11:26:03,328 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 19 transitions. [2020-09-25 11:26:03,328 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-09-25 11:26:03,329 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 11:26:03,329 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 11:26:03,329 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 11:26:03,329 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 11:26:03,330 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 11:26:03,330 INFO L82 PathProgramCache]: Analyzing trace with hash -116474638, now seen corresponding path program 1 times [2020-09-25 11:26:03,331 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 11:26:03,331 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1302646075] [2020-09-25 11:26:03,331 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 11:26:03,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:26:03,361 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:26:03,432 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:26:03,682 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:26:03,682 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-09-25 11:26:03,683 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 11:26:03,683 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 333 [2020-09-25 11:26:03,683 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:26:03,683 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:26:03,684 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 11:26:03,684 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-09-25 11:26:03,685 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 11:26:03,686 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 11:26:05,615 WARN L193 SmtUtils]: Spent 1.85 s on a formula simplification. DAG size of input: 47 DAG size of output: 12 [2020-09-25 11:26:05,643 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 11:26:05,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:26:05,645 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:26:05,647 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:26:05,647 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 11:26:05,647 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:26:05,648 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 11:26:05,648 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:26:05,648 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:26:05,648 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 11:26:05,649 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:26:05,649 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 11:26:05,649 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:26:05,651 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 11:26:05,652 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1302646075] [2020-09-25 11:26:05,652 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 11:26:05,652 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-25 11:26:05,653 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [550875756] [2020-09-25 11:26:05,655 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-25 11:26:05,655 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 11:26:05,655 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-25 11:26:05,656 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-09-25 11:26:05,656 INFO L87 Difference]: Start difference. First operand 18 states and 19 transitions. Second operand 5 states. [2020-09-25 11:26:05,690 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 11:26:05,690 INFO L93 Difference]: Finished difference Result 18 states and 19 transitions. [2020-09-25 11:26:05,691 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-25 11:26:05,691 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 12 [2020-09-25 11:26:05,691 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 11:26:05,692 INFO L225 Difference]: With dead ends: 18 [2020-09-25 11:26:05,692 INFO L226 Difference]: Without dead ends: 0 [2020-09-25 11:26:05,693 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-09-25 11:26:05,694 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-09-25 11:26:05,694 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-09-25 11:26:05,694 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-09-25 11:26:05,694 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-09-25 11:26:05,695 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 12 [2020-09-25 11:26:05,695 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 11:26:05,695 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-09-25 11:26:05,695 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-25 11:26:05,695 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-09-25 11:26:05,696 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-09-25 11:26:05,696 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 11:26:05,699 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-09-25 11:26:05,748 INFO L271 CegarLoopResult]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2020-09-25 11:26:05,748 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-09-25 11:26:05,748 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-09-25 11:26:05,749 INFO L271 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true [2020-09-25 11:26:05,749 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-09-25 11:26:05,749 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-09-25 11:26:05,749 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 4 15) no Hoare annotation was computed. [2020-09-25 11:26:05,750 INFO L268 CegarLoopResult]: For program point L13(line 13) no Hoare annotation was computed. [2020-09-25 11:26:05,750 INFO L268 CegarLoopResult]: For program point mainFINAL(lines 4 15) no Hoare annotation was computed. [2020-09-25 11:26:05,750 INFO L268 CegarLoopResult]: For program point L11(line 11) no Hoare annotation was computed. [2020-09-25 11:26:05,750 INFO L268 CegarLoopResult]: For program point L11-1(line 11) no Hoare annotation was computed. [2020-09-25 11:26:05,750 INFO L268 CegarLoopResult]: For program point L9(lines 9 10) no Hoare annotation was computed. [2020-09-25 11:26:05,750 INFO L268 CegarLoopResult]: For program point L7(line 7) no Hoare annotation was computed. [2020-09-25 11:26:05,750 INFO L268 CegarLoopResult]: For program point L9-2(lines 9 10) no Hoare annotation was computed. [2020-09-25 11:26:05,751 INFO L271 CegarLoopResult]: At program point mainENTRY(lines 4 15) the Hoare annotation is: true [2020-09-25 11:26:05,751 INFO L268 CegarLoopResult]: For program point L10(line 10) no Hoare annotation was computed. [2020-09-25 11:26:05,751 INFO L268 CegarLoopResult]: For program point L6(line 6) no Hoare annotation was computed. [2020-09-25 11:26:05,751 INFO L264 CegarLoopResult]: At program point L8-2(lines 8 12) the Hoare annotation is: (= main_~z~0 (let ((.cse0 (div main_~z~0 2))) (+ (* 2 .cse0) (* 4294967296 (div (+ main_~z~0 (* .cse0 (- 2))) 4294967296))))) [2020-09-25 11:26:05,752 INFO L264 CegarLoopResult]: At program point L8-3(lines 8 12) the Hoare annotation is: (= main_~z~0 (let ((.cse0 (div main_~z~0 2))) (+ (* 2 .cse0) (* 4294967296 (div (+ main_~z~0 (* .cse0 (- 2))) 4294967296))))) [2020-09-25 11:26:05,752 INFO L268 CegarLoopResult]: For program point L2-1(line 2) no Hoare annotation was computed. [2020-09-25 11:26:05,752 INFO L268 CegarLoopResult]: For program point L2-3(line 2) no Hoare annotation was computed. [2020-09-25 11:26:05,752 INFO L271 CegarLoopResult]: At program point __VERIFIER_assertENTRY(line 2) the Hoare annotation is: true [2020-09-25 11:26:05,752 INFO L268 CegarLoopResult]: For program point __VERIFIER_assertEXIT(line 2) no Hoare annotation was computed. [2020-09-25 11:26:05,752 INFO L268 CegarLoopResult]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 2) no Hoare annotation was computed. [2020-09-25 11:26:05,753 INFO L268 CegarLoopResult]: For program point L2(line 2) no Hoare annotation was computed. [2020-09-25 11:26:05,772 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.09 11:26:05 BoogieIcfgContainer [2020-09-25 11:26:05,772 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-25 11:26:05,774 INFO L168 Benchmark]: Toolchain (without parser) took 6193.09 ms. Allocated memory was 140.5 MB in the beginning and 203.9 MB in the end (delta: 63.4 MB). Free memory was 103.5 MB in the beginning and 104.7 MB in the end (delta: -1.1 MB). Peak memory consumption was 62.3 MB. Max. memory is 7.1 GB. [2020-09-25 11:26:05,776 INFO L168 Benchmark]: CDTParser took 0.17 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 11:26:05,777 INFO L168 Benchmark]: CACSL2BoogieTranslator took 305.52 ms. Allocated memory is still 140.5 MB. Free memory was 102.9 MB in the beginning and 93.7 MB in the end (delta: 9.2 MB). Peak memory consumption was 9.2 MB. Max. memory is 7.1 GB. [2020-09-25 11:26:05,778 INFO L168 Benchmark]: Boogie Preprocessor took 121.42 ms. Allocated memory was 140.5 MB in the beginning and 203.9 MB in the end (delta: 63.4 MB). Free memory was 93.7 MB in the beginning and 183.1 MB in the end (delta: -89.4 MB). Peak memory consumption was 13.0 MB. Max. memory is 7.1 GB. [2020-09-25 11:26:05,779 INFO L168 Benchmark]: RCFGBuilder took 279.43 ms. Allocated memory is still 203.9 MB. Free memory was 182.7 MB in the beginning and 170.8 MB in the end (delta: 12.0 MB). Peak memory consumption was 12.0 MB. Max. memory is 7.1 GB. [2020-09-25 11:26:05,780 INFO L168 Benchmark]: TraceAbstraction took 5476.82 ms. Allocated memory is still 203.9 MB. Free memory was 170.1 MB in the beginning and 104.7 MB in the end (delta: 65.5 MB). Peak memory consumption was 65.5 MB. Max. memory is 7.1 GB. [2020-09-25 11:26:05,785 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 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 305.52 ms. Allocated memory is still 140.5 MB. Free memory was 102.9 MB in the beginning and 93.7 MB in the end (delta: 9.2 MB). Peak memory consumption was 9.2 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 121.42 ms. Allocated memory was 140.5 MB in the beginning and 203.9 MB in the end (delta: 63.4 MB). Free memory was 93.7 MB in the beginning and 183.1 MB in the end (delta: -89.4 MB). Peak memory consumption was 13.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 279.43 ms. Allocated memory is still 203.9 MB. Free memory was 182.7 MB in the beginning and 170.8 MB in the end (delta: 12.0 MB). Peak memory consumption was 12.0 MB. Max. memory is 7.1 GB. * TraceAbstraction took 5476.82 ms. Allocated memory is still 203.9 MB. Free memory was 170.1 MB in the beginning and 104.7 MB in the end (delta: 65.5 MB). Peak memory consumption was 65.5 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 2]: 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: 8]: Loop Invariant Derived loop invariant: z == 2 * (z / 2) + 4294967296 * ((z + z / 2 * -2) / 4294967296) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 25 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 5.2s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 41 SDtfs, 7 SDslu, 83 SDs, 0 SdLazy, 10 SolverSat, 1 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 15 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 4.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=25occurred 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, 1 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 8 PreInvPairs, 9 NumberOfFragments, 43 HoareAnnotationTreeSize, 8 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 7 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 4.8s InterpolantComputationTime, 24 NumberOfCodeBlocks, 24 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 22 ConstructedInterpolants, 0 QuantifiedInterpolants, 4114 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...