/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=SMALLESTAMONGWIDE --traceabstraction.additional.smt.options tolerance=0.3 --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/array-lopstr16/flag_loopdep.i -------------------------------------------------------------------------------- This is Ultimate 0.2.0-0f64333 [2020-10-29 04:03:00,403 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-29 04:03:00,407 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-29 04:03:00,470 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-29 04:03:00,471 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-29 04:03:00,477 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-29 04:03:00,480 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-29 04:03:00,485 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-29 04:03:00,489 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-29 04:03:00,495 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-29 04:03:00,496 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-29 04:03:00,498 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-29 04:03:00,498 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-29 04:03:00,501 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-29 04:03:00,504 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-29 04:03:00,506 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-29 04:03:00,507 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-29 04:03:00,511 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-29 04:03:00,520 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-29 04:03:00,528 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-29 04:03:00,530 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-29 04:03:00,532 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-29 04:03:00,534 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-29 04:03:00,536 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-29 04:03:00,547 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-29 04:03:00,547 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-29 04:03:00,548 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-29 04:03:00,552 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-29 04:03:00,553 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-29 04:03:00,554 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-29 04:03:00,554 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-29 04:03:00,555 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-29 04:03:00,556 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-29 04:03:00,557 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-29 04:03:00,558 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-29 04:03:00,558 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-29 04:03:00,559 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-29 04:03:00,559 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-29 04:03:00,560 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-29 04:03:00,561 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-29 04:03:00,561 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-29 04:03:00,562 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 [2020-10-29 04:03:00,603 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-29 04:03:00,604 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-29 04:03:00,605 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-29 04:03:00,605 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-29 04:03:00,606 INFO L138 SettingsManager]: * Use SBE=true [2020-10-29 04:03:00,606 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-29 04:03:00,606 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-29 04:03:00,606 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-29 04:03:00,607 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-29 04:03:00,607 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-29 04:03:00,607 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-29 04:03:00,607 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-29 04:03:00,607 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-29 04:03:00,607 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-29 04:03:00,608 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-29 04:03:00,608 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-29 04:03:00,608 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-29 04:03:00,608 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-29 04:03:00,609 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-29 04:03:00,609 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-29 04:03:00,609 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-29 04:03:00,609 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-29 04:03:00,609 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-29 04:03:00,610 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-29 04:03:00,610 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-29 04:03:00,610 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-29 04:03:00,610 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-29 04:03:00,610 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-29 04:03:00,611 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-29 04:03:00,611 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.3;log-additional-information=true;unknown-allowed=true; [2020-10-29 04:03:01,011 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-29 04:03:01,038 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-29 04:03:01,041 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-29 04:03:01,043 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-29 04:03:01,045 INFO L275 PluginConnector]: CDTParser initialized [2020-10-29 04:03:01,046 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/array-lopstr16/flag_loopdep.i [2020-10-29 04:03:01,140 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/789899ed3/25ba43f3580f4ece8f44a71dac5100cb/FLAGa07859695 [2020-10-29 04:03:01,809 INFO L306 CDTParser]: Found 1 translation units. [2020-10-29 04:03:01,810 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/array-lopstr16/flag_loopdep.i [2020-10-29 04:03:01,821 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/789899ed3/25ba43f3580f4ece8f44a71dac5100cb/FLAGa07859695 [2020-10-29 04:03:02,177 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/789899ed3/25ba43f3580f4ece8f44a71dac5100cb [2020-10-29 04:03:02,181 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-29 04:03:02,193 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-29 04:03:02,197 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-29 04:03:02,198 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-29 04:03:02,202 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-29 04:03:02,203 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 04:03:02" (1/1) ... [2020-10-29 04:03:02,208 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7fd2119c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:03:02, skipping insertion in model container [2020-10-29 04:03:02,208 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 04:03:02" (1/1) ... [2020-10-29 04:03:02,218 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-29 04:03:02,239 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-29 04:03:02,440 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-29 04:03:02,451 INFO L203 MainTranslator]: Completed pre-run [2020-10-29 04:03:02,476 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-29 04:03:02,497 INFO L208 MainTranslator]: Completed translation [2020-10-29 04:03:02,497 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:03:02 WrapperNode [2020-10-29 04:03:02,497 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-29 04:03:02,499 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-29 04:03:02,499 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-29 04:03:02,499 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-29 04:03:02,514 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:03:02" (1/1) ... [2020-10-29 04:03:02,514 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:03:02" (1/1) ... [2020-10-29 04:03:02,524 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:03:02" (1/1) ... [2020-10-29 04:03:02,525 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:03:02" (1/1) ... [2020-10-29 04:03:02,535 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:03:02" (1/1) ... [2020-10-29 04:03:02,540 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:03:02" (1/1) ... [2020-10-29 04:03:02,542 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:03:02" (1/1) ... [2020-10-29 04:03:02,545 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-29 04:03:02,547 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-29 04:03:02,547 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-29 04:03:02,547 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-29 04:03:02,548 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:03:02" (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 [2020-10-29 04:03:02,624 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-29 04:03:02,624 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-29 04:03:02,625 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-29 04:03:02,625 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-10-29 04:03:02,625 INFO L138 BoogieDeclarations]: Found implementation of procedure init [2020-10-29 04:03:02,625 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-29 04:03:02,626 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-29 04:03:02,626 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-29 04:03:02,626 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_perror_fail [2020-10-29 04:03:02,626 INFO L130 BoogieDeclarations]: Found specification of procedure __assert [2020-10-29 04:03:02,626 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-29 04:03:02,627 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-29 04:03:02,627 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-10-29 04:03:02,627 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-10-29 04:03:02,627 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_pointer [2020-10-29 04:03:02,627 INFO L130 BoogieDeclarations]: Found specification of procedure init [2020-10-29 04:03:02,627 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-10-29 04:03:02,628 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-10-29 04:03:02,628 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-29 04:03:02,628 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-10-29 04:03:02,628 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-29 04:03:02,628 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-29 04:03:02,629 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-29 04:03:02,629 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-29 04:03:02,629 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-29 04:03:02,629 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-29 04:03:03,136 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-29 04:03:03,137 INFO L298 CfgBuilder]: Removed 3 assume(true) statements. [2020-10-29 04:03:03,139 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 04:03:03 BoogieIcfgContainer [2020-10-29 04:03:03,139 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-29 04:03:03,144 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-29 04:03:03,145 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-29 04:03:03,150 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-29 04:03:03,150 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.10 04:03:02" (1/3) ... [2020-10-29 04:03:03,152 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5365568e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.10 04:03:03, skipping insertion in model container [2020-10-29 04:03:03,152 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:03:02" (2/3) ... [2020-10-29 04:03:03,153 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5365568e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.10 04:03:03, skipping insertion in model container [2020-10-29 04:03:03,153 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 04:03:03" (3/3) ... [2020-10-29 04:03:03,155 INFO L111 eAbstractionObserver]: Analyzing ICFG flag_loopdep.i [2020-10-29 04:03:03,170 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-29 04:03:03,178 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-29 04:03:03,197 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-29 04:03:03,255 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-29 04:03:03,255 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-29 04:03:03,256 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-29 04:03:03,256 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-29 04:03:03,256 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-29 04:03:03,256 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-29 04:03:03,256 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-29 04:03:03,256 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-29 04:03:03,282 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states. [2020-10-29 04:03:03,290 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-10-29 04:03:03,291 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 04:03:03,292 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 04:03:03,292 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 04:03:03,303 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 04:03:03,303 INFO L82 PathProgramCache]: Analyzing trace with hash -1917384497, now seen corresponding path program 1 times [2020-10-29 04:03:03,320 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 04:03:03,322 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [341045810] [2020-10-29 04:03:03,322 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 04:03:03,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:03:03,586 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:03:03,641 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:03:03,879 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:03:03,880 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-10-29 04:03:03,880 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 04:03:03,880 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 335 [2020-10-29 04:03:03,883 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:03:03,883 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:03:03,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:03:03,884 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 19 [2020-10-29 04:03:03,884 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-29 04:03:03,884 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-29 04:03:03,966 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 04:03:03,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:03:03,972 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:03:03,983 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:03:03,983 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 04:03:03,983 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:03:03,983 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-29 04:03:03,984 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:03:03,984 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:03:03,984 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 04:03:03,984 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:03:03,985 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 04:03:03,985 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 04:03:04,015 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-29 04:03:04,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:03:04,020 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:03:04,022 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:03:04,027 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:03:04,027 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:03:04,027 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 04:03:04,028 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-29 04:03:04,028 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:03:04,028 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:03:04,028 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 04:03:04,029 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-29 04:03:04,029 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 04:03:04,029 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 04:03:04,040 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-29 04:03:04,041 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [341045810] [2020-10-29 04:03:04,043 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-29 04:03:04,044 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-29 04:03:04,045 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1935797109] [2020-10-29 04:03:04,050 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-29 04:03:04,051 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 04:03:04,066 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-29 04:03:04,067 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-29 04:03:04,070 INFO L87 Difference]: Start difference. First operand 38 states. Second operand 5 states. [2020-10-29 04:03:04,316 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 04:03:04,316 INFO L93 Difference]: Finished difference Result 74 states and 102 transitions. [2020-10-29 04:03:04,317 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-29 04:03:04,319 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 22 [2020-10-29 04:03:04,319 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 04:03:04,329 INFO L225 Difference]: With dead ends: 74 [2020-10-29 04:03:04,329 INFO L226 Difference]: Without dead ends: 41 [2020-10-29 04:03:04,333 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-29 04:03:04,353 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2020-10-29 04:03:04,383 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 31. [2020-10-29 04:03:04,385 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2020-10-29 04:03:04,386 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 35 transitions. [2020-10-29 04:03:04,388 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 35 transitions. Word has length 22 [2020-10-29 04:03:04,389 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 04:03:04,389 INFO L481 AbstractCegarLoop]: Abstraction has 31 states and 35 transitions. [2020-10-29 04:03:04,389 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-29 04:03:04,389 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 35 transitions. [2020-10-29 04:03:04,390 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-10-29 04:03:04,390 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 04:03:04,390 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 04:03:04,391 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-29 04:03:04,391 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 04:03:04,392 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 04:03:04,392 INFO L82 PathProgramCache]: Analyzing trace with hash 1542699897, now seen corresponding path program 1 times [2020-10-29 04:03:04,392 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 04:03:04,393 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1050402967] [2020-10-29 04:03:04,393 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 04:03:04,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:03:04,428 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:03:04,465 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:03:04,511 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:03:05,173 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:03:05,173 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-10-29 04:03:05,173 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-29 04:03:05,174 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 756 [2020-10-29 04:03:05,174 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:03:05,174 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:03:05,174 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:03:05,175 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21 [2020-10-29 04:03:05,175 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:03:05,175 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 04:03:05,217 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 04:03:05,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:03:05,224 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:03:05,230 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:03:05,230 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 04:03:05,231 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:03:05,231 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-29 04:03:05,231 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:03:05,231 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:03:05,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 04:03:05,232 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:03:05,232 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 04:03:05,232 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 04:03:05,251 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-29 04:03:05,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:03:05,255 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:03:05,257 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:03:05,264 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:03:05,265 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:03:05,265 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 04:03:05,265 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-29 04:03:05,265 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:03:05,266 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:03:05,266 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-29 04:03:05,266 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-29 04:03:05,266 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:03:05,266 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 04:03:05,290 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-29 04:03:05,291 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1050402967] [2020-10-29 04:03:05,291 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-29 04:03:05,291 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-29 04:03:05,292 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1093798031] [2020-10-29 04:03:05,293 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-29 04:03:05,294 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 04:03:05,294 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-29 04:03:05,295 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-10-29 04:03:05,295 INFO L87 Difference]: Start difference. First operand 31 states and 35 transitions. Second operand 7 states. [2020-10-29 04:03:05,579 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 04:03:05,579 INFO L93 Difference]: Finished difference Result 61 states and 72 transitions. [2020-10-29 04:03:05,580 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-29 04:03:05,580 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 25 [2020-10-29 04:03:05,581 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 04:03:05,582 INFO L225 Difference]: With dead ends: 61 [2020-10-29 04:03:05,583 INFO L226 Difference]: Without dead ends: 33 [2020-10-29 04:03:05,586 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2020-10-29 04:03:05,587 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2020-10-29 04:03:05,601 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 32. [2020-10-29 04:03:05,607 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32 states. [2020-10-29 04:03:05,608 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 35 transitions. [2020-10-29 04:03:05,609 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 35 transitions. Word has length 25 [2020-10-29 04:03:05,609 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 04:03:05,609 INFO L481 AbstractCegarLoop]: Abstraction has 32 states and 35 transitions. [2020-10-29 04:03:05,609 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-29 04:03:05,610 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 35 transitions. [2020-10-29 04:03:05,611 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2020-10-29 04:03:05,611 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 04:03:05,611 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 04:03:05,611 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-29 04:03:05,612 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 04:03:05,612 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 04:03:05,612 INFO L82 PathProgramCache]: Analyzing trace with hash 1385738581, now seen corresponding path program 1 times [2020-10-29 04:03:05,613 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 04:03:05,613 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1632170820] [2020-10-29 04:03:05,613 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 04:03:05,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:03:05,642 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:03:05,662 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:03:05,686 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:03:06,069 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:03:07,559 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:03:07,559 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 39 [2020-10-29 04:03:07,559 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-29 04:03:07,559 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1927 [2020-10-29 04:03:07,560 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:03:07,560 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:03:07,560 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-29 04:03:07,560 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-10-29 04:03:07,560 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-29 04:03:07,561 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 04:03:07,631 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 04:03:07,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:03:07,635 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:03:07,639 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:03:07,639 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 04:03:07,639 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:03:07,639 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 04:03:07,640 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:03:07,640 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:03:07,640 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 04:03:07,640 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:03:07,641 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 04:03:07,641 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 04:03:07,662 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-29 04:03:07,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:03:07,670 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:03:07,677 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:03:07,730 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:03:07,730 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-29 04:03:07,730 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 04:03:07,731 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 62 [2020-10-29 04:03:07,731 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:03:07,731 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:03:07,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 04:03:07,732 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:03:07,732 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-29 04:03:07,732 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 04:03:07,774 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-29 04:03:07,774 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1632170820] [2020-10-29 04:03:07,775 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 04:03:07,775 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-10-29 04:03:07,775 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1133844913] [2020-10-29 04:03:07,776 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-29 04:03:07,776 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 04:03:07,777 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-29 04:03:07,777 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2020-10-29 04:03:07,777 INFO L87 Difference]: Start difference. First operand 32 states and 35 transitions. Second operand 9 states. [2020-10-29 04:03:07,971 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 04:03:07,972 INFO L93 Difference]: Finished difference Result 34 states and 37 transitions. [2020-10-29 04:03:07,972 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-29 04:03:07,972 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 27 [2020-10-29 04:03:07,972 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 04:03:07,973 INFO L225 Difference]: With dead ends: 34 [2020-10-29 04:03:07,973 INFO L226 Difference]: Without dead ends: 0 [2020-10-29 04:03:07,974 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=39, Invalid=143, Unknown=0, NotChecked=0, Total=182 [2020-10-29 04:03:07,974 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-29 04:03:07,974 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-29 04:03:07,974 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-29 04:03:07,974 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-29 04:03:07,975 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 27 [2020-10-29 04:03:07,975 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 04:03:07,975 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-29 04:03:07,975 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-29 04:03:07,975 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-29 04:03:07,975 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-29 04:03:07,976 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-29 04:03:07,978 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-10-29 04:03:08,212 INFO L274 CegarLoopResult]: For program point reach_errorEXIT(line 12) no Hoare annotation was computed. [2020-10-29 04:03:08,213 INFO L277 CegarLoopResult]: At program point reach_errorENTRY(line 12) the Hoare annotation is: true [2020-10-29 04:03:08,213 INFO L274 CegarLoopResult]: For program point L12-1(line 12) no Hoare annotation was computed. [2020-10-29 04:03:08,213 INFO L274 CegarLoopResult]: For program point L12-2(line 12) no Hoare annotation was computed. [2020-10-29 04:03:08,213 INFO L274 CegarLoopResult]: For program point reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION(line 12) no Hoare annotation was computed. [2020-10-29 04:03:08,213 INFO L274 CegarLoopResult]: For program point L23-2(lines 23 26) no Hoare annotation was computed. [2020-10-29 04:03:08,214 INFO L270 CegarLoopResult]: At program point L23-3(lines 23 26) the Hoare annotation is: (or (not (= (select (select |#memory_$Pointer$.base| |init_#in~a.base|) |init_#in~a.offset|) 0)) (let ((.cse0 (* init_~i~0 4))) (and (= |init_#in~a.offset| (+ init_~a.offset .cse0)) (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|) (<= (+ |init_#in~size| init_~i~0) init_~size) (= |old(#length)| |#length|) (= |#memory_int| |old(#memory_int)|) (= init_~a.base |init_#in~a.base|) (= .cse0 0) (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|) (= |old(#valid)| |#valid|)))) [2020-10-29 04:03:08,214 INFO L274 CegarLoopResult]: For program point L23-4(lines 20 27) no Hoare annotation was computed. [2020-10-29 04:03:08,214 INFO L270 CegarLoopResult]: At program point initENTRY(lines 20 27) the Hoare annotation is: (and (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|) (= |old(#length)| |#length|) (= |#memory_int| |old(#memory_int)|) (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|) (= |old(#valid)| |#valid|)) [2020-10-29 04:03:08,214 INFO L274 CegarLoopResult]: For program point initEXIT(lines 20 27) no Hoare annotation was computed. [2020-10-29 04:03:08,214 INFO L274 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-10-29 04:03:08,215 INFO L270 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= |old(#NULL.base)| |#NULL.base|) (= |old(#t~string1.offset)| |#t~string1.offset|) (= |#t~string0.offset| |old(#t~string0.offset)|) (= |old(#length)| |#length|) (= |#t~string1.base| |old(#t~string1.base)|) (= |#t~string0.base| |old(#t~string0.base)|) (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#valid)| |#valid|)) [2020-10-29 04:03:08,215 INFO L274 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-10-29 04:03:08,215 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-10-29 04:03:08,215 INFO L277 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true [2020-10-29 04:03:08,215 INFO L277 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-10-29 04:03:08,215 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-10-29 04:03:08,215 INFO L274 CegarLoopResult]: For program point L35-2(lines 35 41) no Hoare annotation was computed. [2020-10-29 04:03:08,216 INFO L270 CegarLoopResult]: At program point L35-3(lines 35 41) the Hoare annotation is: (or (<= 1 main_~flag~0) (let ((.cse0 (select |#memory_$Pointer$.base| |main_~#a~0.base|))) (and (not (= (select .cse0 |main_~#a~0.offset|) 0)) (not (= 0 (select .cse0 (+ (* main_~i~1 4) |main_~#a~0.offset|)))) (<= main_~i~1 0)))) [2020-10-29 04:03:08,216 INFO L274 CegarLoopResult]: For program point L35-4(lines 35 41) no Hoare annotation was computed. [2020-10-29 04:03:08,216 INFO L274 CegarLoopResult]: For program point mainEXIT(lines 28 48) no Hoare annotation was computed. [2020-10-29 04:03:08,216 INFO L274 CegarLoopResult]: For program point mainFINAL(lines 28 48) no Hoare annotation was computed. [2020-10-29 04:03:08,216 INFO L274 CegarLoopResult]: For program point L44(lines 44 45) no Hoare annotation was computed. [2020-10-29 04:03:08,216 INFO L274 CegarLoopResult]: For program point L42-2(lines 42 46) no Hoare annotation was computed. [2020-10-29 04:03:08,216 INFO L270 CegarLoopResult]: At program point L42-3(lines 42 46) the Hoare annotation is: (<= 1 main_~flag~0) [2020-10-29 04:03:08,217 INFO L274 CegarLoopResult]: For program point L42-4(lines 42 46) no Hoare annotation was computed. [2020-10-29 04:03:08,217 INFO L277 CegarLoopResult]: At program point L34(line 34) the Hoare annotation is: true [2020-10-29 04:03:08,217 INFO L274 CegarLoopResult]: For program point L34-1(line 34) no Hoare annotation was computed. [2020-10-29 04:03:08,217 INFO L270 CegarLoopResult]: At program point mainENTRY(lines 28 48) the Hoare annotation is: (and (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|) (= |old(#length)| |#length|) (= |#memory_int| |old(#memory_int)|) (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|) (= |old(#valid)| |#valid|)) [2020-10-29 04:03:08,217 INFO L270 CegarLoopResult]: At program point L45(line 45) the Hoare annotation is: false [2020-10-29 04:03:08,217 INFO L274 CegarLoopResult]: For program point L45-1(line 45) no Hoare annotation was computed. [2020-10-29 04:03:08,218 INFO L274 CegarLoopResult]: For program point L37(lines 37 40) no Hoare annotation was computed. [2020-10-29 04:03:08,218 INFO L277 CegarLoopResult]: At program point __VERIFIER_assertENTRY(line 13) the Hoare annotation is: true [2020-10-29 04:03:08,218 INFO L274 CegarLoopResult]: For program point L13(line 13) no Hoare annotation was computed. [2020-10-29 04:03:08,218 INFO L277 CegarLoopResult]: At program point L13-1(line 13) the Hoare annotation is: true [2020-10-29 04:03:08,218 INFO L274 CegarLoopResult]: For program point L13-2(line 13) no Hoare annotation was computed. [2020-10-29 04:03:08,218 INFO L274 CegarLoopResult]: For program point __VERIFIER_assertEXIT(line 13) no Hoare annotation was computed. [2020-10-29 04:03:08,218 INFO L274 CegarLoopResult]: For program point L13-4(line 13) no Hoare annotation was computed. [2020-10-29 04:03:08,231 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-10-29 04:03:08,233 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2020-10-29 04:03:08,233 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2020-10-29 04:03:08,233 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-10-29 04:03:08,234 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-10-29 04:03:08,236 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-10-29 04:03:08,236 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-10-29 04:03:08,236 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-10-29 04:03:08,237 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-10-29 04:03:08,237 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-10-29 04:03:08,237 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-29 04:03:08,237 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-29 04:03:08,238 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-10-29 04:03:08,238 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-10-29 04:03:08,241 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-10-29 04:03:08,241 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2020-10-29 04:03:08,242 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2020-10-29 04:03:08,242 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-10-29 04:03:08,242 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-10-29 04:03:08,243 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-10-29 04:03:08,243 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-10-29 04:03:08,243 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-10-29 04:03:08,243 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-10-29 04:03:08,244 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-10-29 04:03:08,244 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-29 04:03:08,244 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-29 04:03:08,244 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-10-29 04:03:08,245 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-10-29 04:03:08,246 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-10-29 04:03:08,247 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-10-29 04:03:08,247 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-10-29 04:03:08,247 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-10-29 04:03:08,248 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-10-29 04:03:08,248 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-10-29 04:03:08,248 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-10-29 04:03:08,248 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-10-29 04:03:08,250 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.10 04:03:08 BoogieIcfgContainer [2020-10-29 04:03:08,251 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-29 04:03:08,254 INFO L168 Benchmark]: Toolchain (without parser) took 6067.00 ms. Allocated memory was 156.2 MB in the beginning and 187.7 MB in the end (delta: 31.5 MB). Free memory was 132.9 MB in the beginning and 81.3 MB in the end (delta: 51.6 MB). Peak memory consumption was 84.2 MB. Max. memory is 8.0 GB. [2020-10-29 04:03:08,254 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 125.8 MB. Free memory is still 100.7 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-10-29 04:03:08,255 INFO L168 Benchmark]: CACSL2BoogieTranslator took 300.51 ms. Allocated memory is still 156.2 MB. Free memory was 132.2 MB in the beginning and 122.5 MB in the end (delta: 9.7 MB). Peak memory consumption was 9.4 MB. Max. memory is 8.0 GB. [2020-10-29 04:03:08,256 INFO L168 Benchmark]: Boogie Preprocessor took 46.84 ms. Allocated memory is still 156.2 MB. Free memory was 122.5 MB in the beginning and 120.7 MB in the end (delta: 1.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2020-10-29 04:03:08,257 INFO L168 Benchmark]: RCFGBuilder took 592.84 ms. Allocated memory is still 156.2 MB. Free memory was 120.7 MB in the beginning and 136.1 MB in the end (delta: -15.4 MB). Peak memory consumption was 16.8 MB. Max. memory is 8.0 GB. [2020-10-29 04:03:08,258 INFO L168 Benchmark]: TraceAbstraction took 5106.59 ms. Allocated memory was 156.2 MB in the beginning and 187.7 MB in the end (delta: 31.5 MB). Free memory was 135.6 MB in the beginning and 81.3 MB in the end (delta: 54.4 MB). Peak memory consumption was 86.3 MB. Max. memory is 8.0 GB. [2020-10-29 04:03:08,263 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 125.8 MB. Free memory is still 100.7 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 300.51 ms. Allocated memory is still 156.2 MB. Free memory was 132.2 MB in the beginning and 122.5 MB in the end (delta: 9.7 MB). Peak memory consumption was 9.4 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 46.84 ms. Allocated memory is still 156.2 MB. Free memory was 122.5 MB in the beginning and 120.7 MB in the end (delta: 1.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 592.84 ms. Allocated memory is still 156.2 MB. Free memory was 120.7 MB in the beginning and 136.1 MB in the end (delta: -15.4 MB). Peak memory consumption was 16.8 MB. Max. memory is 8.0 GB. * TraceAbstraction took 5106.59 ms. Allocated memory was 156.2 MB in the beginning and 187.7 MB in the end (delta: 31.5 MB). Free memory was 135.6 MB in the beginning and 81.3 MB in the end (delta: 54.4 MB). Peak memory consumption was 86.3 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_$Pointer$ - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_$Pointer$ - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_$Pointer$ - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_$Pointer$ - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_$Pointer$ - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_$Pointer$ - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_$Pointer$ - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_$Pointer$ - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_$Pointer$ - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_$Pointer$ - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_$Pointer$ - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_$Pointer$ - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_$Pointer$ - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_$Pointer$ * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 12]: 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: 23]: Loop Invariant [2020-10-29 04:03:08,273 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-10-29 04:03:08,274 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2020-10-29 04:03:08,274 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2020-10-29 04:03:08,274 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-10-29 04:03:08,275 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-10-29 04:03:08,275 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-10-29 04:03:08,275 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-10-29 04:03:08,275 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-10-29 04:03:08,275 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-10-29 04:03:08,276 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-10-29 04:03:08,276 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-29 04:03:08,276 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-29 04:03:08,276 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-10-29 04:03:08,276 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-10-29 04:03:08,277 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-10-29 04:03:08,277 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2020-10-29 04:03:08,277 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2020-10-29 04:03:08,278 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-10-29 04:03:08,278 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-10-29 04:03:08,278 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-10-29 04:03:08,278 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-10-29 04:03:08,279 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-10-29 04:03:08,279 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-10-29 04:03:08,279 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-10-29 04:03:08,279 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-29 04:03:08,279 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-29 04:03:08,280 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-10-29 04:03:08,280 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ Derived loop invariant: !(#memory_$Pointer$[a][a] == 0) || ((((((((a == a + i * 4 && #memory_$Pointer$ == \old(#memory_$Pointer$)) && \old(size) + i <= size) && \old(unknown-#length-unknown) == unknown-#length-unknown) && unknown-#memory_int-unknown == \old(unknown-#memory_int-unknown)) && a == a) && i * 4 == 0) && #memory_$Pointer$ == \old(#memory_$Pointer$)) && \old(\valid) == \valid) - InvariantResult [Line: 42]: Loop Invariant Derived loop invariant: 1 <= flag - InvariantResult [Line: 35]: Loop Invariant [2020-10-29 04:03:08,281 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-10-29 04:03:08,281 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-10-29 04:03:08,281 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-10-29 04:03:08,281 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-10-29 04:03:08,282 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-10-29 04:03:08,282 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-10-29 04:03:08,282 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-10-29 04:03:08,282 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ Derived loop invariant: 1 <= flag || ((!(#memory_$Pointer$[a][a] == 0) && !(0 == #memory_$Pointer$[a][i * 4 + a])) && i <= 0) - StatisticsResult: Ultimate Automizer benchmark data CFG has 6 procedures, 38 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 4.7s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 0.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.2s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 72 SDtfs, 54 SDslu, 159 SDs, 0 SdLazy, 202 SolverSat, 28 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 38 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=38occurred 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, 3 MinimizatonAttempts, 11 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 13 LocationsWithAnnotation, 19 PreInvPairs, 23 NumberOfFragments, 140 HoareAnnotationTreeSize, 19 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 13 FomulaSimplificationsInter, 63 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 3.5s InterpolantComputationTime, 74 NumberOfCodeBlocks, 74 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 71 ConstructedInterpolants, 0 QuantifiedInterpolants, 6600 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 2 PerfectInterpolantSequences, 2/3 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...