/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SingleStatement --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=WIDESTAMONGSMALL --traceabstraction.additional.smt.options tolerance=0.4 --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/ldv-regression/test21-1.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 05:31:48,453 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 05:31:48,458 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 05:31:48,505 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 05:31:48,506 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 05:31:48,513 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 05:31:48,516 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 05:31:48,519 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 05:31:48,522 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 05:31:48,527 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 05:31:48,528 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 05:31:48,529 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 05:31:48,529 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 05:31:48,534 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 05:31:48,537 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 05:31:48,539 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 05:31:48,541 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 05:31:48,542 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 05:31:48,544 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 05:31:48,549 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 05:31:48,554 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 05:31:48,555 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 05:31:48,556 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 05:31:48,557 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 05:31:48,559 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 05:31:48,559 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 05:31:48,560 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 05:31:48,561 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 05:31:48,561 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 05:31:48,562 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 05:31:48,562 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 05:31:48,563 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 05:31:48,564 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 05:31:48,565 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 05:31:48,567 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 05:31:48,567 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 05:31:48,568 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 05:31:48,568 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 05:31:48,568 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 05:31:48,569 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 05:31:48,570 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 05:31:48,571 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-09-25 05:31:48,597 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 05:31:48,597 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 05:31:48,599 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 05:31:48,599 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 05:31:48,599 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 05:31:48,600 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 05:31:48,600 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 05:31:48,600 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 05:31:48,600 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 05:31:48,600 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 05:31:48,601 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 05:31:48,601 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 05:31:48,601 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 05:31:48,601 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 05:31:48,601 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 05:31:48,602 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 05:31:48,602 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 05:31:48,602 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 05:31:48,602 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 05:31:48,602 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 05:31:48,603 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 05:31:48,603 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 05:31:48,603 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 05:31:48,603 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 05:31:48,604 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 05:31:48,604 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 05:31:48,604 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 05:31:48,604 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 05:31:48,604 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 05:31:48,605 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SingleStatement Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true; [2020-09-25 05:31:49,122 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 05:31:49,139 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 05:31:49,144 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 05:31:49,145 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 05:31:49,146 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 05:31:49,148 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-regression/test21-1.c [2020-09-25 05:31:49,231 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/3847854c3/6d65ce3518be467aadb28ce633a073fc/FLAGe89db20ac [2020-09-25 05:31:49,763 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 05:31:49,764 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/ldv-regression/test21-1.c [2020-09-25 05:31:49,773 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/3847854c3/6d65ce3518be467aadb28ce633a073fc/FLAGe89db20ac [2020-09-25 05:31:50,087 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/3847854c3/6d65ce3518be467aadb28ce633a073fc [2020-09-25 05:31:50,102 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 05:31:50,109 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 05:31:50,112 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 05:31:50,112 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 05:31:50,116 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 05:31:50,118 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 05:31:50" (1/1) ... [2020-09-25 05:31:50,123 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@36345b5e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:31:50, skipping insertion in model container [2020-09-25 05:31:50,123 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 05:31:50" (1/1) ... [2020-09-25 05:31:50,133 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 05:31:50,165 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 05:31:50,390 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 05:31:50,404 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 05:31:50,422 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 05:31:50,442 INFO L208 MainTranslator]: Completed translation [2020-09-25 05:31:50,442 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:31:50 WrapperNode [2020-09-25 05:31:50,442 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 05:31:50,443 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 05:31:50,443 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 05:31:50,444 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 05:31:50,547 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:31:50" (1/1) ... [2020-09-25 05:31:50,547 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:31:50" (1/1) ... [2020-09-25 05:31:50,559 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:31:50" (1/1) ... [2020-09-25 05:31:50,559 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:31:50" (1/1) ... [2020-09-25 05:31:50,568 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:31:50" (1/1) ... [2020-09-25 05:31:50,571 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:31:50" (1/1) ... [2020-09-25 05:31:50,572 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:31:50" (1/1) ... [2020-09-25 05:31:50,575 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 05:31:50,575 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 05:31:50,576 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 05:31:50,576 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 05:31:50,577 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:31:50" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 05:31:50,654 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 05:31:50,654 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 05:31:50,654 INFO L138 BoogieDeclarations]: Found implementation of procedure init [2020-09-25 05:31:50,654 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dummy [2020-09-25 05:31:50,655 INFO L138 BoogieDeclarations]: Found implementation of procedure check [2020-09-25 05:31:50,655 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 05:31:50,655 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 05:31:50,655 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 05:31:50,655 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2020-09-25 05:31:50,656 INFO L130 BoogieDeclarations]: Found specification of procedure init [2020-09-25 05:31:50,656 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-25 05:31:50,656 INFO L130 BoogieDeclarations]: Found specification of procedure get_dummy [2020-09-25 05:31:50,656 INFO L130 BoogieDeclarations]: Found specification of procedure check [2020-09-25 05:31:50,657 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-25 05:31:50,657 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 05:31:50,657 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 05:31:50,657 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-25 05:31:50,657 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-25 05:31:50,658 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 05:31:50,658 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-25 05:31:51,006 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 05:31:51,007 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-09-25 05:31:51,012 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 05:31:51 BoogieIcfgContainer [2020-09-25 05:31:51,012 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 05:31:51,014 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 05:31:51,014 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 05:31:51,018 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 05:31:51,018 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 05:31:50" (1/3) ... [2020-09-25 05:31:51,019 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4c1780cd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 05:31:51, skipping insertion in model container [2020-09-25 05:31:51,020 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:31:50" (2/3) ... [2020-09-25 05:31:51,020 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4c1780cd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 05:31:51, skipping insertion in model container [2020-09-25 05:31:51,020 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 05:31:51" (3/3) ... [2020-09-25 05:31:51,023 INFO L109 eAbstractionObserver]: Analyzing ICFG test21-1.c [2020-09-25 05:31:51,035 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 05:31:51,045 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 05:31:51,068 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 05:31:51,097 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 05:31:51,097 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 05:31:51,097 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 05:31:51,098 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 05:31:51,098 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 05:31:51,098 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 05:31:51,098 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 05:31:51,098 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 05:31:51,122 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states. [2020-09-25 05:31:51,132 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2020-09-25 05:31:51,132 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 05:31:51,133 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 05:31:51,134 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 05:31:51,140 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 05:31:51,141 INFO L82 PathProgramCache]: Analyzing trace with hash -487286935, now seen corresponding path program 1 times [2020-09-25 05:31:51,150 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 05:31:51,150 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1264082785] [2020-09-25 05:31:51,151 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 05:31:51,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:31:51,475 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:31:51,804 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:31:52,946 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:31:52,947 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 78 [2020-09-25 05:31:52,949 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 05:31:52,949 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1580 [2020-09-25 05:31:52,954 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:31:52,955 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:31:52,955 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-25 05:31:52,956 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 61 [2020-09-25 05:31:52,956 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-09-25 05:31:52,957 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 6 [2020-09-25 05:31:53,172 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 05:31:53,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:31:53,190 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:31:53,217 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:31:53,219 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-25 05:31:53,220 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:31:53,220 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-09-25 05:31:53,221 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:31:53,221 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:31:53,221 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:31:53,222 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:31:53,222 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:31:53,223 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 05:31:53,250 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-09-25 05:31:53,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:31:53,259 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:31:53,263 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:31:53,263 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-09-25 05:31:53,263 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:31:53,265 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 05:31:53,265 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:31:53,266 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:31:53,266 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:31:53,267 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:31:53,267 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:31:53,267 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 05:31:53,283 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-09-25 05:31:53,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:31:53,287 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:31:53,293 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:31:53,294 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-09-25 05:31:53,294 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:31:53,294 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 05:31:53,294 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:31:53,295 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:31:53,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:31:53,296 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:31:53,296 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:31:53,296 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:31:53,301 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-09-25 05:31:53,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:31:53,308 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:31:53,315 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:31:53,316 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-09-25 05:31:53,316 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:31:53,316 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-25 05:31:53,317 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:31:53,318 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:31:53,318 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:31:53,319 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:31:53,319 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:31:53,319 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 05:31:53,332 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-09-25 05:31:53,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:31:53,348 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:31:53,392 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:31:53,393 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 05:31:53,393 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:31:53,394 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 50 [2020-09-25 05:31:53,395 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:31:53,399 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:31:53,399 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-25 05:31:53,399 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:31:53,400 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-09-25 05:31:53,400 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-09-25 05:31:53,586 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2020-09-25 05:31:53,587 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1264082785] [2020-09-25 05:31:53,590 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 05:31:53,590 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-09-25 05:31:53,592 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [200865350] [2020-09-25 05:31:53,599 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-09-25 05:31:53,601 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 05:31:53,619 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-09-25 05:31:53,622 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2020-09-25 05:31:53,625 INFO L87 Difference]: Start difference. First operand 65 states. Second operand 11 states. [2020-09-25 05:31:54,704 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 05:31:54,704 INFO L93 Difference]: Finished difference Result 72 states and 74 transitions. [2020-09-25 05:31:54,705 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-09-25 05:31:54,707 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 63 [2020-09-25 05:31:54,708 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 05:31:54,718 INFO L225 Difference]: With dead ends: 72 [2020-09-25 05:31:54,718 INFO L226 Difference]: Without dead ends: 0 [2020-09-25 05:31:54,724 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=94, Invalid=286, Unknown=0, NotChecked=0, Total=380 [2020-09-25 05:31:54,746 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-09-25 05:31:54,755 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-09-25 05:31:54,757 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-09-25 05:31:54,757 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-09-25 05:31:54,759 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 63 [2020-09-25 05:31:54,759 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 05:31:54,759 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-09-25 05:31:54,760 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-09-25 05:31:54,760 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-09-25 05:31:54,760 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-09-25 05:31:54,760 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 05:31:54,763 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-09-25 05:31:54,971 INFO L264 CegarLoopResult]: At program point initENTRY(lines 11 18) the Hoare annotation is: (= |#memory_int| |old(#memory_int)|) [2020-09-25 05:31:54,972 INFO L268 CegarLoopResult]: For program point L17(line 17) no Hoare annotation was computed. [2020-09-25 05:31:54,972 INFO L268 CegarLoopResult]: For program point L16(line 16) no Hoare annotation was computed. [2020-09-25 05:31:54,972 INFO L268 CegarLoopResult]: For program point L17-1(line 17) no Hoare annotation was computed. [2020-09-25 05:31:54,972 INFO L268 CegarLoopResult]: For program point L16-1(line 16) no Hoare annotation was computed. [2020-09-25 05:31:54,972 INFO L268 CegarLoopResult]: For program point L17-2(line 17) no Hoare annotation was computed. [2020-09-25 05:31:54,973 INFO L268 CegarLoopResult]: For program point L14(line 14) no Hoare annotation was computed. [2020-09-25 05:31:54,973 INFO L268 CegarLoopResult]: For program point L16-2(line 16) no Hoare annotation was computed. [2020-09-25 05:31:54,973 INFO L268 CegarLoopResult]: For program point L13(line 13) no Hoare annotation was computed. [2020-09-25 05:31:54,973 INFO L268 CegarLoopResult]: For program point L14-1(line 14) no Hoare annotation was computed. [2020-09-25 05:31:54,973 INFO L268 CegarLoopResult]: For program point initEXIT(lines 11 18) no Hoare annotation was computed. [2020-09-25 05:31:54,973 INFO L268 CegarLoopResult]: For program point L13-1(line 13) no Hoare annotation was computed. [2020-09-25 05:31:54,974 INFO L268 CegarLoopResult]: For program point L14-2(line 14) no Hoare annotation was computed. [2020-09-25 05:31:54,974 INFO L268 CegarLoopResult]: For program point initFINAL(lines 11 18) no Hoare annotation was computed. [2020-09-25 05:31:54,974 INFO L268 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2020-09-25 05:31:54,974 INFO L268 CegarLoopResult]: For program point L-1-1(line -1) no Hoare annotation was computed. [2020-09-25 05:31:54,974 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line 9) no Hoare annotation was computed. [2020-09-25 05:31:54,975 INFO L264 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= |old(#NULL.base)| |#NULL.base|) (= |old(#length)| |#length|) (= |old(~#d1~0.base)| |~#d1~0.base|) (= |old(~#d1~0.offset)| |~#d1~0.offset|) (= |old(~#d2~0.offset)| |~#d2~0.offset|) (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#valid)| |#valid|) (= |old(~#d2~0.base)| |~#d2~0.base|)) [2020-09-25 05:31:54,975 INFO L268 CegarLoopResult]: For program point L9(line 9) no Hoare annotation was computed. [2020-09-25 05:31:54,975 INFO L268 CegarLoopResult]: For program point L9-1(line 9) no Hoare annotation was computed. [2020-09-25 05:31:54,976 INFO L268 CegarLoopResult]: For program point L9-2(line 9) no Hoare annotation was computed. [2020-09-25 05:31:54,976 INFO L268 CegarLoopResult]: For program point L9-3(line 9) no Hoare annotation was computed. [2020-09-25 05:31:54,976 INFO L268 CegarLoopResult]: For program point L9-4(line 9) no Hoare annotation was computed. [2020-09-25 05:31:54,976 INFO L268 CegarLoopResult]: For program point L9-5(line 9) no Hoare annotation was computed. [2020-09-25 05:31:54,976 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-09-25 05:31:54,976 INFO L268 CegarLoopResult]: For program point L22-5(line 22) no Hoare annotation was computed. [2020-09-25 05:31:54,976 INFO L268 CegarLoopResult]: For program point get_dummyFINAL(lines 20 23) no Hoare annotation was computed. [2020-09-25 05:31:54,977 INFO L271 CegarLoopResult]: At program point get_dummyENTRY(lines 20 23) the Hoare annotation is: true [2020-09-25 05:31:54,977 INFO L268 CegarLoopResult]: For program point L22(line 22) no Hoare annotation was computed. [2020-09-25 05:31:54,977 INFO L268 CegarLoopResult]: For program point L22-2(line 22) no Hoare annotation was computed. [2020-09-25 05:31:54,977 INFO L268 CegarLoopResult]: For program point get_dummyEXIT(lines 20 23) no Hoare annotation was computed. [2020-09-25 05:31:54,978 INFO L268 CegarLoopResult]: For program point L22-3(line 22) no Hoare annotation was computed. [2020-09-25 05:31:54,978 INFO L268 CegarLoopResult]: For program point L22-4(line 22) no Hoare annotation was computed. [2020-09-25 05:31:54,978 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-09-25 05:31:54,978 INFO L271 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true [2020-09-25 05:31:54,979 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-09-25 05:31:54,980 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-09-25 05:31:54,980 INFO L268 CegarLoopResult]: For program point L33(line 33) no Hoare annotation was computed. [2020-09-25 05:31:54,980 INFO L268 CegarLoopResult]: For program point L35-2(lines 35 37) no Hoare annotation was computed. [2020-09-25 05:31:54,980 INFO L268 CegarLoopResult]: For program point L33-1(line 33) no Hoare annotation was computed. [2020-09-25 05:31:54,981 INFO L268 CegarLoopResult]: For program point L35-3(line 35) no Hoare annotation was computed. [2020-09-25 05:31:54,981 INFO L271 CegarLoopResult]: At program point L33-2(line 33) the Hoare annotation is: true [2020-09-25 05:31:54,981 INFO L268 CegarLoopResult]: For program point L35-4(line 35) no Hoare annotation was computed. [2020-09-25 05:31:54,981 INFO L268 CegarLoopResult]: For program point L33-3(line 33) no Hoare annotation was computed. [2020-09-25 05:31:54,982 INFO L268 CegarLoopResult]: For program point L33-4(line 33) no Hoare annotation was computed. [2020-09-25 05:31:54,984 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 30 44) no Hoare annotation was computed. [2020-09-25 05:31:54,984 INFO L268 CegarLoopResult]: For program point mainFINAL(lines 30 44) no Hoare annotation was computed. [2020-09-25 05:31:54,985 INFO L264 CegarLoopResult]: At program point L36(lines 31 44) the Hoare annotation is: false [2020-09-25 05:31:54,985 INFO L268 CegarLoopResult]: For program point L34(lines 34 38) no Hoare annotation was computed. [2020-09-25 05:31:54,985 INFO L271 CegarLoopResult]: At program point L32(line 32) the Hoare annotation is: true [2020-09-25 05:31:54,985 INFO L268 CegarLoopResult]: For program point L34-2(lines 34 38) no Hoare annotation was computed. [2020-09-25 05:31:54,986 INFO L268 CegarLoopResult]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 42) no Hoare annotation was computed. [2020-09-25 05:31:54,986 INFO L264 CegarLoopResult]: At program point mainENTRY(lines 30 44) the Hoare annotation is: (= |#memory_int| |old(#memory_int)|) [2020-09-25 05:31:54,986 INFO L268 CegarLoopResult]: For program point L43(line 43) no Hoare annotation was computed. [2020-09-25 05:31:54,986 INFO L264 CegarLoopResult]: At program point L35(line 35) the Hoare annotation is: (and (= main_~pd2~0.offset main_~pd1~0.offset) (= main_~pd2~0.base main_~pd1~0.base)) [2020-09-25 05:31:54,986 INFO L268 CegarLoopResult]: For program point L35-1(line 35) no Hoare annotation was computed. [2020-09-25 05:31:54,986 INFO L271 CegarLoopResult]: At program point checkENTRY(lines 25 28) the Hoare annotation is: true [2020-09-25 05:31:54,987 INFO L268 CegarLoopResult]: For program point L27(line 27) no Hoare annotation was computed. [2020-09-25 05:31:54,987 INFO L268 CegarLoopResult]: For program point L27-1(line 27) no Hoare annotation was computed. [2020-09-25 05:31:54,987 INFO L268 CegarLoopResult]: For program point L25(lines 25 28) no Hoare annotation was computed. [2020-09-25 05:31:54,987 INFO L268 CegarLoopResult]: For program point L27-2(line 27) no Hoare annotation was computed. [2020-09-25 05:31:54,987 INFO L268 CegarLoopResult]: For program point L27-3(line 27) no Hoare annotation was computed. [2020-09-25 05:31:54,987 INFO L268 CegarLoopResult]: For program point L27-4(line 27) no Hoare annotation was computed. [2020-09-25 05:31:54,988 INFO L268 CegarLoopResult]: For program point checkFINAL(lines 25 28) no Hoare annotation was computed. [2020-09-25 05:31:54,988 INFO L268 CegarLoopResult]: For program point checkEXIT(lines 25 28) no Hoare annotation was computed. [2020-09-25 05:31:55,004 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.09 05:31:55 BoogieIcfgContainer [2020-09-25 05:31:55,004 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-25 05:31:55,008 INFO L168 Benchmark]: Toolchain (without parser) took 4902.69 ms. Allocated memory was 146.8 MB in the beginning and 245.4 MB in the end (delta: 98.6 MB). Free memory was 103.2 MB in the beginning and 107.1 MB in the end (delta: -3.9 MB). Peak memory consumption was 94.6 MB. Max. memory is 7.1 GB. [2020-09-25 05:31:55,009 INFO L168 Benchmark]: CDTParser took 0.29 ms. Allocated memory is still 146.8 MB. Free memory was 121.5 MB in the beginning and 121.3 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. [2020-09-25 05:31:55,010 INFO L168 Benchmark]: CACSL2BoogieTranslator took 331.08 ms. Allocated memory is still 146.8 MB. Free memory was 102.6 MB in the beginning and 92.0 MB in the end (delta: 10.6 MB). Peak memory consumption was 10.6 MB. Max. memory is 7.1 GB. [2020-09-25 05:31:55,011 INFO L168 Benchmark]: Boogie Preprocessor took 131.89 ms. Allocated memory was 146.8 MB in the beginning and 203.4 MB in the end (delta: 56.6 MB). Free memory was 92.0 MB in the beginning and 181.6 MB in the end (delta: -89.7 MB). Peak memory consumption was 10.2 MB. Max. memory is 7.1 GB. [2020-09-25 05:31:55,012 INFO L168 Benchmark]: RCFGBuilder took 437.14 ms. Allocated memory is still 203.4 MB. Free memory was 181.6 MB in the beginning and 161.4 MB in the end (delta: 20.2 MB). Peak memory consumption was 20.2 MB. Max. memory is 7.1 GB. [2020-09-25 05:31:55,013 INFO L168 Benchmark]: TraceAbstraction took 3990.79 ms. Allocated memory was 203.4 MB in the beginning and 245.4 MB in the end (delta: 41.9 MB). Free memory was 160.8 MB in the beginning and 107.1 MB in the end (delta: 53.6 MB). Peak memory consumption was 95.6 MB. Max. memory is 7.1 GB. [2020-09-25 05:31:55,017 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29 ms. Allocated memory is still 146.8 MB. Free memory was 121.5 MB in the beginning and 121.3 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 331.08 ms. Allocated memory is still 146.8 MB. Free memory was 102.6 MB in the beginning and 92.0 MB in the end (delta: 10.6 MB). Peak memory consumption was 10.6 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 131.89 ms. Allocated memory was 146.8 MB in the beginning and 203.4 MB in the end (delta: 56.6 MB). Free memory was 92.0 MB in the beginning and 181.6 MB in the end (delta: -89.7 MB). Peak memory consumption was 10.2 MB. Max. memory is 7.1 GB. * RCFGBuilder took 437.14 ms. Allocated memory is still 203.4 MB. Free memory was 181.6 MB in the beginning and 161.4 MB in the end (delta: 20.2 MB). Peak memory consumption was 20.2 MB. Max. memory is 7.1 GB. * TraceAbstraction took 3990.79 ms. Allocated memory was 203.4 MB in the beginning and 245.4 MB in the end (delta: 41.9 MB). Free memory was 160.8 MB in the beginning and 107.1 MB in the end (delta: 53.6 MB). Peak memory consumption was 95.6 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 42]: 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: 31]: Loop Invariant Derived loop invariant: 0 - StatisticsResult: Ultimate Automizer benchmark data CFG has 6 procedures, 65 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 3.6s, OverallIterations: 1, TraceHistogramMax: 2, AutomataDifference: 1.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.2s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 47 SDtfs, 88 SDslu, 68 SDs, 0 SdLazy, 426 SolverSat, 14 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 28 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=65occurred 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, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 11 LocationsWithAnnotation, 12 PreInvPairs, 12 NumberOfFragments, 45 HoareAnnotationTreeSize, 12 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 11 FomulaSimplificationsInter, 179 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 2.2s InterpolantComputationTime, 63 NumberOfCodeBlocks, 63 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 62 ConstructedInterpolants, 0 QuantifiedInterpolants, 12028 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 7/7 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...