/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SequenceOfStatements --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=SHALLOWEST --traceabstraction.additional.smt.options log-additional-information=true --traceabstraction.additional.smt.options unknown-allowed=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf language data_model -i ../../../trunk/examples/svcomp/bitvector/jain_7-2.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-0f64333 [2020-10-26 20:00:01,502 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-26 20:00:01,505 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-26 20:00:01,543 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-26 20:00:01,543 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-26 20:00:01,545 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-26 20:00:01,547 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-26 20:00:01,550 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-26 20:00:01,552 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-26 20:00:01,553 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-26 20:00:01,555 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-26 20:00:01,556 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-26 20:00:01,557 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-26 20:00:01,559 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-26 20:00:01,563 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-26 20:00:01,565 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-26 20:00:01,566 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-26 20:00:01,569 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-26 20:00:01,574 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-26 20:00:01,578 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-26 20:00:01,583 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-26 20:00:01,588 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-26 20:00:01,591 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-26 20:00:01,593 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-26 20:00:01,603 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-26 20:00:01,604 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-26 20:00:01,604 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-26 20:00:01,609 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-26 20:00:01,610 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-26 20:00:01,611 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-26 20:00:01,612 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-26 20:00:01,613 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-26 20:00:01,614 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-26 20:00:01,616 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-26 20:00:01,639 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-26 20:00:01,640 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-26 20:00:01,641 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-26 20:00:01,641 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-26 20:00:01,641 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-26 20:00:01,642 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-26 20:00:01,643 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-26 20:00:01,644 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 [2020-10-26 20:00:01,672 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-26 20:00:01,672 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-26 20:00:01,674 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-26 20:00:01,674 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-26 20:00:01,674 INFO L138 SettingsManager]: * Use SBE=true [2020-10-26 20:00:01,675 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-26 20:00:01,675 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-26 20:00:01,675 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-26 20:00:01,675 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-26 20:00:01,676 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-26 20:00:01,676 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-26 20:00:01,676 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-26 20:00:01,677 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-26 20:00:01,677 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-26 20:00:01,677 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-26 20:00:01,678 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-26 20:00:01,678 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-26 20:00:01,678 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-26 20:00:01,679 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-26 20:00:01,679 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-26 20:00:01,679 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-26 20:00:01,679 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-26 20:00:01,680 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-26 20:00:01,680 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-26 20:00:01,680 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-26 20:00:01,681 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-26 20:00:01,681 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-26 20:00:01,681 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-26 20:00:01,681 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-26 20:00:01,682 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SHALLOWEST;log-additional-information=true;unknown-allowed=true; [2020-10-26 20:00:02,119 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-26 20:00:02,150 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-26 20:00:02,154 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-26 20:00:02,155 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-26 20:00:02,156 INFO L275 PluginConnector]: CDTParser initialized [2020-10-26 20:00:02,157 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/bitvector/jain_7-2.c [2020-10-26 20:00:02,254 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/a2f935880/d76966c4974e4fe9b2620a9ee86d537f/FLAGecdff76be [2020-10-26 20:00:02,884 INFO L306 CDTParser]: Found 1 translation units. [2020-10-26 20:00:02,884 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/bitvector/jain_7-2.c [2020-10-26 20:00:02,892 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/a2f935880/d76966c4974e4fe9b2620a9ee86d537f/FLAGecdff76be [2020-10-26 20:00:03,265 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/a2f935880/d76966c4974e4fe9b2620a9ee86d537f [2020-10-26 20:00:03,270 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-26 20:00:03,280 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-26 20:00:03,285 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-26 20:00:03,285 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-26 20:00:03,290 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-26 20:00:03,291 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 08:00:03" (1/1) ... [2020-10-26 20:00:03,296 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@418260e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:00:03, skipping insertion in model container [2020-10-26 20:00:03,297 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 08:00:03" (1/1) ... [2020-10-26 20:00:03,307 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-26 20:00:03,338 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-26 20:00:03,585 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-26 20:00:03,605 INFO L203 MainTranslator]: Completed pre-run [2020-10-26 20:00:03,627 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-26 20:00:03,646 INFO L208 MainTranslator]: Completed translation [2020-10-26 20:00:03,647 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:00:03 WrapperNode [2020-10-26 20:00:03,647 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-26 20:00:03,649 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-26 20:00:03,649 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-26 20:00:03,649 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-26 20:00:03,663 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:00:03" (1/1) ... [2020-10-26 20:00:03,666 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:00:03" (1/1) ... [2020-10-26 20:00:03,673 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:00:03" (1/1) ... [2020-10-26 20:00:03,674 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:00:03" (1/1) ... [2020-10-26 20:00:03,679 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:00:03" (1/1) ... [2020-10-26 20:00:03,683 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:00:03" (1/1) ... [2020-10-26 20:00:03,684 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:00:03" (1/1) ... [2020-10-26 20:00:03,687 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-26 20:00:03,688 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-26 20:00:03,689 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-26 20:00:03,689 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-26 20:00:03,690 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:00:03" (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 [2020-10-26 20:00:03,764 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-26 20:00:03,764 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-26 20:00:03,764 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-26 20:00:03,765 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-10-26 20:00:03,765 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-26 20:00:03,765 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-26 20:00:03,765 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-26 20:00:03,765 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-26 20:00:03,766 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-26 20:00:03,766 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uint [2020-10-26 20:00:03,766 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-10-26 20:00:03,766 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-26 20:00:03,767 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-26 20:00:03,767 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-26 20:00:03,767 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-26 20:00:03,767 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-26 20:00:03,768 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-26 20:00:03,768 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-26 20:00:03,999 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-26 20:00:04,000 INFO L298 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-26 20:00:04,002 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 08:00:04 BoogieIcfgContainer [2020-10-26 20:00:04,002 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-26 20:00:04,004 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-26 20:00:04,004 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-26 20:00:04,018 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-26 20:00:04,018 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.10 08:00:03" (1/3) ... [2020-10-26 20:00:04,020 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@362de8c6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.10 08:00:04, skipping insertion in model container [2020-10-26 20:00:04,020 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:00:03" (2/3) ... [2020-10-26 20:00:04,021 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@362de8c6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.10 08:00:04, skipping insertion in model container [2020-10-26 20:00:04,021 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 08:00:04" (3/3) ... [2020-10-26 20:00:04,023 INFO L111 eAbstractionObserver]: Analyzing ICFG jain_7-2.c [2020-10-26 20:00:04,036 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-26 20:00:04,047 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-26 20:00:04,062 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-26 20:00:04,103 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-26 20:00:04,104 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-26 20:00:04,104 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-26 20:00:04,104 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-26 20:00:04,104 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-26 20:00:04,105 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-26 20:00:04,105 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-26 20:00:04,105 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-26 20:00:04,124 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states. [2020-10-26 20:00:04,130 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-10-26 20:00:04,130 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 20:00:04,131 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 20:00:04,131 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 20:00:04,137 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 20:00:04,138 INFO L82 PathProgramCache]: Analyzing trace with hash -1199457490, now seen corresponding path program 1 times [2020-10-26 20:00:04,147 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 20:00:04,148 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2065574014] [2020-10-26 20:00:04,148 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 20:00:04,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:00:04,366 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:00:04,746 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:00:04,748 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-26 20:00:04,748 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:00:04,749 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 423 [2020-10-26 20:00:04,751 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:00:04,752 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-26 20:00:04,752 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-26 20:00:04,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-26 20:00:04,753 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-10-26 20:00:04,943 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 20:00:04,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:00:04,952 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:00:04,964 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:00:04,964 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 20:00:04,964 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:00:04,964 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-26 20:00:04,965 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:00:04,965 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:00:04,965 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:00:04,965 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:00:04,966 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-26 20:00:04,979 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-26 20:00:04,980 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2065574014] [2020-10-26 20:00:04,982 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-26 20:00:04,982 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-26 20:00:04,983 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1735384900] [2020-10-26 20:00:04,988 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-26 20:00:04,989 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 20:00:05,004 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-26 20:00:05,009 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-10-26 20:00:05,014 INFO L87 Difference]: Start difference. First operand 23 states. Second operand 7 states. [2020-10-26 20:00:05,375 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 20:00:05,375 INFO L93 Difference]: Finished difference Result 39 states and 52 transitions. [2020-10-26 20:00:05,376 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-26 20:00:05,377 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 12 [2020-10-26 20:00:05,378 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 20:00:05,386 INFO L225 Difference]: With dead ends: 39 [2020-10-26 20:00:05,386 INFO L226 Difference]: Without dead ends: 22 [2020-10-26 20:00:05,390 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=32, Invalid=78, Unknown=0, NotChecked=0, Total=110 [2020-10-26 20:00:05,410 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2020-10-26 20:00:05,434 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 21. [2020-10-26 20:00:05,436 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2020-10-26 20:00:05,437 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 21 transitions. [2020-10-26 20:00:05,439 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 21 transitions. Word has length 12 [2020-10-26 20:00:05,439 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 20:00:05,439 INFO L481 AbstractCegarLoop]: Abstraction has 21 states and 21 transitions. [2020-10-26 20:00:05,440 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-26 20:00:05,440 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 21 transitions. [2020-10-26 20:00:05,441 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-10-26 20:00:05,441 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 20:00:05,441 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 20:00:05,442 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-26 20:00:05,442 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 20:00:05,443 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 20:00:05,443 INFO L82 PathProgramCache]: Analyzing trace with hash -680978417, now seen corresponding path program 1 times [2020-10-26 20:00:05,443 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 20:00:05,444 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1008867091] [2020-10-26 20:00:05,444 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 20:00:05,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:00:05,489 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:00:05,794 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:00:05,794 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 30 [2020-10-26 20:00:05,794 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:00:05,795 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 322 [2020-10-26 20:00:05,795 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:00:05,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-26 20:00:05,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-26 20:00:05,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-26 20:00:05,796 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:00:05,945 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 20:00:05,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:00:05,952 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:00:05,959 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:00:05,959 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 20:00:05,959 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:00:05,959 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-26 20:00:05,960 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:00:05,960 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:00:05,960 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:00:05,960 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:00:05,961 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:00:05,965 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-10-26 20:00:05,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:00:05,972 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:00:05,980 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:00:05,981 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 20:00:05,981 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:00:05,981 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-26 20:00:05,981 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:00:05,982 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 20:00:05,982 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:00:05,982 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 20:00:05,982 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:00:05,991 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-26 20:00:05,992 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1008867091] [2020-10-26 20:00:05,992 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 20:00:05,992 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-26 20:00:05,993 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1620726103] [2020-10-26 20:00:05,994 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-26 20:00:05,994 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 20:00:05,995 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-26 20:00:05,996 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-10-26 20:00:05,996 INFO L87 Difference]: Start difference. First operand 21 states and 21 transitions. Second operand 8 states. [2020-10-26 20:00:06,199 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 20:00:06,199 INFO L93 Difference]: Finished difference Result 21 states and 21 transitions. [2020-10-26 20:00:06,200 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-26 20:00:06,200 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 18 [2020-10-26 20:00:06,201 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 20:00:06,201 INFO L225 Difference]: With dead ends: 21 [2020-10-26 20:00:06,201 INFO L226 Difference]: Without dead ends: 0 [2020-10-26 20:00:06,203 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=38, Invalid=94, Unknown=0, NotChecked=0, Total=132 [2020-10-26 20:00:06,203 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-26 20:00:06,203 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-26 20:00:06,204 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-26 20:00:06,204 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-26 20:00:06,204 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 18 [2020-10-26 20:00:06,204 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 20:00:06,204 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-26 20:00:06,205 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-26 20:00:06,205 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-26 20:00:06,205 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-26 20:00:06,205 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-26 20:00:06,208 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-10-26 20:00:06,382 INFO L274 CegarLoopResult]: For program point reach_errorEXIT(line 3) no Hoare annotation was computed. [2020-10-26 20:00:06,382 INFO L277 CegarLoopResult]: At program point reach_errorENTRY(line 3) the Hoare annotation is: true [2020-10-26 20:00:06,382 INFO L274 CegarLoopResult]: For program point reach_errorFINAL(line 3) no Hoare annotation was computed. [2020-10-26 20:00:06,383 INFO L274 CegarLoopResult]: For program point reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION(line 3) no Hoare annotation was computed. [2020-10-26 20:00:06,383 INFO L274 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-10-26 20:00:06,383 INFO L270 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= |#t~string5.base| |old(#t~string5.base)|) (= |#t~string5.offset| |old(#t~string5.offset)|) (= |old(#length)| |#length|) (= |#t~string6.base| |old(#t~string6.base)|) (= |#t~string6.offset| |old(#t~string6.offset)|) (= |#t~string4.base| |old(#t~string4.base)|) (= |#NULL.base| |old(#NULL.base)|) (= |#t~string4.offset| |old(#t~string4.offset)|) (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#valid)| |#valid|)) [2020-10-26 20:00:06,383 INFO L274 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-10-26 20:00:06,383 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-10-26 20:00:06,384 INFO L277 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true [2020-10-26 20:00:06,384 INFO L277 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-10-26 20:00:06,384 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-10-26 20:00:06,384 INFO L277 CegarLoopResult]: At program point mainENTRY(lines 12 29) the Hoare annotation is: true [2020-10-26 20:00:06,384 INFO L270 CegarLoopResult]: At program point L26(line 26) the Hoare annotation is: (<= (+ (* 4 main_~x~0) main_~z~0) (+ (* 2 main_~y~0) (* 4194304 (div (+ (* main_~x~0 4) (* main_~y~0 (- 2)) main_~z~0) 4194304)))) [2020-10-26 20:00:06,385 INFO L270 CegarLoopResult]: At program point L26-1(lines 20 27) the Hoare annotation is: (<= (+ (* 4 main_~x~0) main_~z~0) (+ (* 2 main_~y~0) (* 4194304 (div (+ (* main_~x~0 4) (* main_~y~0 (- 2)) main_~z~0) 4194304)))) [2020-10-26 20:00:06,385 INFO L274 CegarLoopResult]: For program point mainEXIT(lines 12 29) no Hoare annotation was computed. [2020-10-26 20:00:06,385 INFO L274 CegarLoopResult]: For program point L20-2(lines 20 27) no Hoare annotation was computed. [2020-10-26 20:00:06,385 INFO L274 CegarLoopResult]: For program point mainFINAL(lines 12 29) no Hoare annotation was computed. [2020-10-26 20:00:06,385 INFO L277 CegarLoopResult]: At program point __VERIFIER_assertENTRY(lines 6 11) the Hoare annotation is: true [2020-10-26 20:00:06,385 INFO L274 CegarLoopResult]: For program point __VERIFIER_assertEXIT(lines 6 11) no Hoare annotation was computed. [2020-10-26 20:00:06,386 INFO L270 CegarLoopResult]: At program point L8(line 8) the Hoare annotation is: (not (<= 1 |__VERIFIER_assert_#in~cond|)) [2020-10-26 20:00:06,386 INFO L274 CegarLoopResult]: For program point L7(lines 7 9) no Hoare annotation was computed. [2020-10-26 20:00:06,386 INFO L274 CegarLoopResult]: For program point L8-1(line 8) no Hoare annotation was computed. [2020-10-26 20:00:06,386 INFO L274 CegarLoopResult]: For program point L7-2(lines 6 11) no Hoare annotation was computed. [2020-10-26 20:00:06,405 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.10 08:00:06 BoogieIcfgContainer [2020-10-26 20:00:06,405 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-26 20:00:06,408 INFO L168 Benchmark]: Toolchain (without parser) took 3133.01 ms. Allocated memory is still 154.1 MB. Free memory was 129.6 MB in the beginning and 53.3 MB in the end (delta: 76.4 MB). Peak memory consumption was 76.7 MB. Max. memory is 8.0 GB. [2020-10-26 20:00:06,409 INFO L168 Benchmark]: CDTParser took 0.72 ms. Allocated memory is still 154.1 MB. Free memory was 128.2 MB in the beginning and 128.1 MB in the end (delta: 102.4 kB). There was no memory consumed. Max. memory is 8.0 GB. [2020-10-26 20:00:06,410 INFO L168 Benchmark]: CACSL2BoogieTranslator took 363.13 ms. Allocated memory is still 154.1 MB. Free memory was 129.0 MB in the beginning and 120.0 MB in the end (delta: 9.1 MB). Peak memory consumption was 9.4 MB. Max. memory is 8.0 GB. [2020-10-26 20:00:06,411 INFO L168 Benchmark]: Boogie Preprocessor took 38.29 ms. Allocated memory is still 154.1 MB. Free memory was 120.0 MB in the beginning and 118.4 MB in the end (delta: 1.5 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2020-10-26 20:00:06,412 INFO L168 Benchmark]: RCFGBuilder took 313.78 ms. Allocated memory is still 154.1 MB. Free memory was 118.4 MB in the beginning and 106.4 MB in the end (delta: 12.0 MB). Peak memory consumption was 12.6 MB. Max. memory is 8.0 GB. [2020-10-26 20:00:06,413 INFO L168 Benchmark]: TraceAbstraction took 2401.24 ms. Allocated memory is still 154.1 MB. Free memory was 106.0 MB in the beginning and 53.3 MB in the end (delta: 52.7 MB). Peak memory consumption was 53.6 MB. Max. memory is 8.0 GB. [2020-10-26 20:00:06,417 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.72 ms. Allocated memory is still 154.1 MB. Free memory was 128.2 MB in the beginning and 128.1 MB in the end (delta: 102.4 kB). There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 363.13 ms. Allocated memory is still 154.1 MB. Free memory was 129.0 MB in the beginning and 120.0 MB in the end (delta: 9.1 MB). Peak memory consumption was 9.4 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 38.29 ms. Allocated memory is still 154.1 MB. Free memory was 120.0 MB in the beginning and 118.4 MB in the end (delta: 1.5 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 313.78 ms. Allocated memory is still 154.1 MB. Free memory was 118.4 MB in the beginning and 106.4 MB in the end (delta: 12.0 MB). Peak memory consumption was 12.6 MB. Max. memory is 8.0 GB. * TraceAbstraction took 2401.24 ms. Allocated memory is still 154.1 MB. Free memory was 106.0 MB in the beginning and 53.3 MB in the end (delta: 52.7 MB). Peak memory consumption was 53.6 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 3]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 20]: Loop Invariant Derived loop invariant: 4 * x + z <= 2 * y + 4194304 * ((x * 4 + y * -2 + z) / 4194304) - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 23 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 2.1s, OverallIterations: 2, TraceHistogramMax: 2, AutomataDifference: 0.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.1s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 17 SDtfs, 24 SDslu, 35 SDs, 0 SdLazy, 58 SolverSat, 18 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 27 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=23occurred 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, 9 LocationsWithAnnotation, 14 PreInvPairs, 18 NumberOfFragments, 84 HoareAnnotationTreeSize, 14 FomulaSimplifications, 207 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 9 FomulaSimplificationsInter, 180 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 1.1s InterpolantComputationTime, 30 NumberOfCodeBlocks, 30 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 28 ConstructedInterpolants, 0 QuantifiedInterpolants, 3812 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 1 PerfectInterpolantSequences, 2/4 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...