/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/loop-industry-pattern/mod3.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-0f64333 [2020-10-29 09:40:17,042 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-29 09:40:17,045 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-29 09:40:17,099 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-29 09:40:17,100 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-29 09:40:17,106 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-29 09:40:17,108 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-29 09:40:17,113 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-29 09:40:17,141 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-29 09:40:17,149 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-29 09:40:17,150 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-29 09:40:17,162 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-29 09:40:17,162 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-29 09:40:17,164 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-29 09:40:17,170 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-29 09:40:17,171 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-29 09:40:17,174 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-29 09:40:17,175 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-29 09:40:17,179 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-29 09:40:17,181 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-29 09:40:17,186 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-29 09:40:17,191 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-29 09:40:17,193 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-29 09:40:17,194 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-29 09:40:17,201 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-29 09:40:17,202 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-29 09:40:17,202 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-29 09:40:17,203 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-29 09:40:17,203 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-29 09:40:17,207 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-29 09:40:17,207 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-29 09:40:17,208 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-29 09:40:17,209 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-29 09:40:17,210 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-29 09:40:17,211 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-29 09:40:17,212 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-29 09:40:17,212 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-29 09:40:17,213 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-29 09:40:17,213 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-29 09:40:17,214 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-29 09:40:17,215 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-29 09:40:17,223 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 09:40:17,269 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-29 09:40:17,269 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-29 09:40:17,273 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-29 09:40:17,273 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-29 09:40:17,273 INFO L138 SettingsManager]: * Use SBE=true [2020-10-29 09:40:17,274 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-29 09:40:17,274 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-29 09:40:17,274 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-29 09:40:17,274 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-29 09:40:17,274 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-29 09:40:17,275 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-29 09:40:17,276 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-29 09:40:17,276 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-29 09:40:17,276 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-29 09:40:17,276 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-29 09:40:17,276 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-29 09:40:17,277 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-29 09:40:17,277 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-29 09:40:17,277 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-29 09:40:17,277 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-29 09:40:17,277 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-29 09:40:17,278 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-29 09:40:17,278 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-29 09:40:17,278 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-29 09:40:17,278 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-29 09:40:17,278 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-29 09:40:17,279 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-29 09:40:17,279 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-29 09:40:17,279 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-29 09:40:17,279 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.3;log-additional-information=true;unknown-allowed=true; [2020-10-29 09:40:17,658 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-29 09:40:17,695 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-29 09:40:17,698 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-29 09:40:17,700 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-29 09:40:17,700 INFO L275 PluginConnector]: CDTParser initialized [2020-10-29 09:40:17,702 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-industry-pattern/mod3.c [2020-10-29 09:40:17,785 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/3a0a2a88a/3ea7b01e71644de0804467d53770d5cc/FLAG210cb82b4 [2020-10-29 09:40:18,315 INFO L306 CDTParser]: Found 1 translation units. [2020-10-29 09:40:18,316 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/loop-industry-pattern/mod3.c [2020-10-29 09:40:18,324 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/3a0a2a88a/3ea7b01e71644de0804467d53770d5cc/FLAG210cb82b4 [2020-10-29 09:40:18,659 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/3a0a2a88a/3ea7b01e71644de0804467d53770d5cc [2020-10-29 09:40:18,663 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-29 09:40:18,671 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-29 09:40:18,675 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-29 09:40:18,675 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-29 09:40:18,679 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-29 09:40:18,681 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 09:40:18" (1/1) ... [2020-10-29 09:40:18,692 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@68a155bf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 09:40:18, skipping insertion in model container [2020-10-29 09:40:18,692 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 09:40:18" (1/1) ... [2020-10-29 09:40:18,701 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-29 09:40:18,719 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-29 09:40:18,914 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-29 09:40:18,931 INFO L203 MainTranslator]: Completed pre-run [2020-10-29 09:40:18,970 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-29 09:40:18,992 INFO L208 MainTranslator]: Completed translation [2020-10-29 09:40:18,993 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 09:40:18 WrapperNode [2020-10-29 09:40:18,993 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-29 09:40:18,995 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-29 09:40:18,995 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-29 09:40:18,996 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-29 09:40:19,010 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 09:40:18" (1/1) ... [2020-10-29 09:40:19,012 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 09:40:18" (1/1) ... [2020-10-29 09:40:19,036 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 09:40:18" (1/1) ... [2020-10-29 09:40:19,036 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 09:40:18" (1/1) ... [2020-10-29 09:40:19,051 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 09:40:18" (1/1) ... [2020-10-29 09:40:19,055 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 09:40:18" (1/1) ... [2020-10-29 09:40:19,057 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 09:40:18" (1/1) ... [2020-10-29 09:40:19,059 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-29 09:40:19,060 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-29 09:40:19,060 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-29 09:40:19,060 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-29 09:40:19,061 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 09:40:18" (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 09:40:19,174 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-29 09:40:19,174 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-29 09:40:19,175 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-29 09:40:19,175 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-10-29 09:40:19,175 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-29 09:40:19,176 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-29 09:40:19,176 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-29 09:40:19,176 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-29 09:40:19,176 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-29 09:40:19,177 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-29 09:40:19,178 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-10-29 09:40:19,178 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-29 09:40:19,178 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-29 09:40:19,178 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-29 09:40:19,179 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-29 09:40:19,180 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-29 09:40:19,180 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-29 09:40:19,180 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-29 09:40:19,660 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-29 09:40:19,661 INFO L298 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-29 09:40:19,662 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 09:40:19 BoogieIcfgContainer [2020-10-29 09:40:19,663 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-29 09:40:19,666 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-29 09:40:19,666 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-29 09:40:19,670 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-29 09:40:19,671 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.10 09:40:18" (1/3) ... [2020-10-29 09:40:19,672 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@68ddce0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.10 09:40:19, skipping insertion in model container [2020-10-29 09:40:19,672 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 09:40:18" (2/3) ... [2020-10-29 09:40:19,673 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@68ddce0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.10 09:40:19, skipping insertion in model container [2020-10-29 09:40:19,673 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 09:40:19" (3/3) ... [2020-10-29 09:40:19,674 INFO L111 eAbstractionObserver]: Analyzing ICFG mod3.c [2020-10-29 09:40:19,684 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-29 09:40:19,688 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-29 09:40:19,698 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-29 09:40:19,724 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-29 09:40:19,724 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-29 09:40:19,724 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-29 09:40:19,724 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-29 09:40:19,724 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-29 09:40:19,725 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-29 09:40:19,725 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-29 09:40:19,725 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-29 09:40:19,741 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states. [2020-10-29 09:40:19,747 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-10-29 09:40:19,747 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 09:40:19,748 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 09:40:19,748 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 09:40:19,754 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 09:40:19,754 INFO L82 PathProgramCache]: Analyzing trace with hash 180032467, now seen corresponding path program 1 times [2020-10-29 09:40:19,764 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 09:40:19,764 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1571332777] [2020-10-29 09:40:19,765 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 09:40:19,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 09:40:19,918 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 09:40:19,980 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 09:40:20,199 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 09:40:20,200 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-10-29 09:40:20,200 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 09:40:20,200 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 310 [2020-10-29 09:40:20,203 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 09:40:20,203 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 09:40:20,204 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 09:40:20,204 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-29 09:40:20,204 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-10-29 09:40:20,204 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-29 09:40:20,356 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 09:40:20,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 09:40:20,365 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 09:40:20,378 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 09:40:20,378 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 09:40:20,378 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 09:40:20,378 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-29 09:40:20,379 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 09:40:20,379 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 09:40:20,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 09:40:20,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 09:40:20,380 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 09:40:20,380 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 09:40:20,391 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 09:40:20,392 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1571332777] [2020-10-29 09:40:20,394 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-29 09:40:20,394 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-29 09:40:20,395 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [919585533] [2020-10-29 09:40:20,399 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-29 09:40:20,400 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 09:40:20,414 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-29 09:40:20,415 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-29 09:40:20,417 INFO L87 Difference]: Start difference. First operand 28 states. Second operand 4 states. [2020-10-29 09:40:20,738 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 09:40:20,739 INFO L93 Difference]: Finished difference Result 51 states and 66 transitions. [2020-10-29 09:40:20,740 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-29 09:40:20,741 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 13 [2020-10-29 09:40:20,742 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 09:40:20,750 INFO L225 Difference]: With dead ends: 51 [2020-10-29 09:40:20,750 INFO L226 Difference]: Without dead ends: 23 [2020-10-29 09:40:20,754 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-29 09:40:20,772 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2020-10-29 09:40:20,794 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 20. [2020-10-29 09:40:20,795 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2020-10-29 09:40:20,796 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 23 transitions. [2020-10-29 09:40:20,798 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 23 transitions. Word has length 13 [2020-10-29 09:40:20,798 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 09:40:20,798 INFO L481 AbstractCegarLoop]: Abstraction has 20 states and 23 transitions. [2020-10-29 09:40:20,798 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-29 09:40:20,799 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 23 transitions. [2020-10-29 09:40:20,799 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-10-29 09:40:20,799 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 09:40:20,800 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 09:40:20,800 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-29 09:40:20,800 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 09:40:20,801 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 09:40:20,801 INFO L82 PathProgramCache]: Analyzing trace with hash -1981087390, now seen corresponding path program 1 times [2020-10-29 09:40:20,802 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 09:40:20,802 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1186361067] [2020-10-29 09:40:20,802 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 09:40:20,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 09:40:20,891 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 09:40:21,266 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 09:40:21,266 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-10-29 09:40:21,268 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 09:40:21,268 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 417 [2020-10-29 09:40:21,269 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 09:40:21,269 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 09:40:21,269 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 09:40:21,269 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-10-29 09:40:21,270 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-29 09:40:21,270 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 09:40:21,467 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 09:40:21,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 09:40:21,473 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 09:40:21,479 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 09:40:21,480 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 09:40:21,480 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 09:40:21,480 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-29 09:40:21,480 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 09:40:21,481 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 09:40:21,481 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 09:40:21,481 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 09:40:21,481 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 09:40:21,482 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 09:40:21,491 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-29 09:40:21,491 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1186361067] [2020-10-29 09:40:21,492 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-29 09:40:21,492 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-29 09:40:21,492 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [342667293] [2020-10-29 09:40:21,494 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-29 09:40:21,494 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 09:40:21,495 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-29 09:40:21,495 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-10-29 09:40:21,495 INFO L87 Difference]: Start difference. First operand 20 states and 23 transitions. Second operand 6 states. [2020-10-29 09:40:26,244 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 09:40:26,245 INFO L93 Difference]: Finished difference Result 43 states and 53 transitions. [2020-10-29 09:40:26,245 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-29 09:40:26,246 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 17 [2020-10-29 09:40:26,246 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 09:40:26,247 INFO L225 Difference]: With dead ends: 43 [2020-10-29 09:40:26,247 INFO L226 Difference]: Without dead ends: 25 [2020-10-29 09:40:26,248 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2020-10-29 09:40:26,249 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2020-10-29 09:40:26,255 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 24. [2020-10-29 09:40:26,255 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2020-10-29 09:40:26,256 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 27 transitions. [2020-10-29 09:40:26,256 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 27 transitions. Word has length 17 [2020-10-29 09:40:26,256 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 09:40:26,257 INFO L481 AbstractCegarLoop]: Abstraction has 24 states and 27 transitions. [2020-10-29 09:40:26,257 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-29 09:40:26,257 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 27 transitions. [2020-10-29 09:40:26,258 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-10-29 09:40:26,258 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 09:40:26,258 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 09:40:26,258 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-29 09:40:26,258 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 09:40:26,259 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 09:40:26,259 INFO L82 PathProgramCache]: Analyzing trace with hash -811426357, now seen corresponding path program 1 times [2020-10-29 09:40:26,259 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 09:40:26,260 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [662504598] [2020-10-29 09:40:26,260 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 09:40:26,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 09:40:26,293 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 09:40:26,430 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 09:40:26,431 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-10-29 09:40:26,431 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 09:40:26,431 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 150 [2020-10-29 09:40:26,432 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 09:40:26,432 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 09:40:26,432 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 09:40:26,432 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-29 09:40:26,432 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-29 09:40:26,433 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 09:40:26,592 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 09:40:26,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 09:40:26,596 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 09:40:26,602 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 09:40:26,602 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 09:40:26,602 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 09:40:26,602 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-29 09:40:26,603 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 09:40:26,603 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 09:40:26,603 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 09:40:26,603 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 09:40:26,604 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 09:40:26,604 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 09:40:26,609 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-29 09:40:26,609 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [662504598] [2020-10-29 09:40:26,609 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-29 09:40:26,610 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-29 09:40:26,610 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2043619694] [2020-10-29 09:40:26,610 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-29 09:40:26,611 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 09:40:26,611 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-29 09:40:26,612 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-10-29 09:40:26,612 INFO L87 Difference]: Start difference. First operand 24 states and 27 transitions. Second operand 6 states. [2020-10-29 09:40:31,154 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 09:40:31,155 INFO L93 Difference]: Finished difference Result 42 states and 52 transitions. [2020-10-29 09:40:31,155 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-29 09:40:31,156 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 18 [2020-10-29 09:40:31,156 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 09:40:31,156 INFO L225 Difference]: With dead ends: 42 [2020-10-29 09:40:31,156 INFO L226 Difference]: Without dead ends: 0 [2020-10-29 09:40:31,157 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2020-10-29 09:40:31,158 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-29 09:40:31,158 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-29 09:40:31,158 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-29 09:40:31,158 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-29 09:40:31,158 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 18 [2020-10-29 09:40:31,159 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 09:40:31,159 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-29 09:40:31,159 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-29 09:40:31,159 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-29 09:40:31,159 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-29 09:40:31,159 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-29 09:40:31,162 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-10-29 09:40:31,577 WARN L193 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 30 [2020-10-29 09:40:31,591 INFO L274 CegarLoopResult]: For program point reach_errorEXIT(line 3) no Hoare annotation was computed. [2020-10-29 09:40:31,591 INFO L277 CegarLoopResult]: At program point reach_errorENTRY(line 3) the Hoare annotation is: true [2020-10-29 09:40:31,592 INFO L274 CegarLoopResult]: For program point reach_errorFINAL(line 3) no Hoare annotation was computed. [2020-10-29 09:40:31,592 INFO L274 CegarLoopResult]: For program point reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION(line 3) no Hoare annotation was computed. [2020-10-29 09:40:31,592 INFO L274 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-10-29 09:40:31,592 INFO L270 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= |#t~string5.base| |old(#t~string5.base)|) (= |#t~string5.offset| |old(#t~string5.offset)|) (= |old(#length)| |#length|) (= |#t~string6.base| |old(#t~string6.base)|) (= |#t~string6.offset| |old(#t~string6.offset)|) (= |#t~string4.base| |old(#t~string4.base)|) (= |#NULL.base| |old(#NULL.base)|) (= |#t~string4.offset| |old(#t~string4.offset)|) (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#valid)| |#valid|)) [2020-10-29 09:40:31,593 INFO L274 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-10-29 09:40:31,593 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-10-29 09:40:31,593 INFO L277 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true [2020-10-29 09:40:31,593 INFO L277 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-10-29 09:40:31,593 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-10-29 09:40:31,593 INFO L270 CegarLoopResult]: At program point L33(line 33) the Hoare annotation is: (<= (* 2863311531 main_~x~0) (let ((.cse0 (div main_~x~0 4294967296))) (let ((.cse2 (* .cse0 (- 4294967296)))) (let ((.cse1 (div (+ main_~x~0 .cse2) 3))) (+ (* 12297829383904690176 .cse0) (* 8589934592 .cse1) (* 12297829383904690176 (div (+ main_~x~0 .cse2 (* .cse1 (- 3))) 4294967296)) 1431655765))))) [2020-10-29 09:40:31,594 INFO L274 CegarLoopResult]: For program point L25(lines 25 28) no Hoare annotation was computed. [2020-10-29 09:40:31,594 INFO L274 CegarLoopResult]: For program point mainEXIT(lines 14 35) no Hoare annotation was computed. [2020-10-29 09:40:31,594 INFO L270 CegarLoopResult]: At program point L25-2(lines 18 31) the Hoare annotation is: (or (and (<= (div main_~y~0 4294967296) 0) (<= 1 main_~y~0)) (<= (* 2863311531 main_~x~0) (let ((.cse0 (div main_~x~0 4294967296))) (let ((.cse2 (* .cse0 (- 4294967296)))) (let ((.cse1 (div (+ main_~x~0 .cse2) 3))) (+ (* 12297829383904690176 .cse0) (* 8589934592 .cse1) (* 12297829383904690176 (div (+ main_~x~0 .cse2 (* .cse1 (- 3))) 4294967296)) 1431655765)))))) [2020-10-29 09:40:31,594 INFO L274 CegarLoopResult]: For program point L19(lines 19 30) no Hoare annotation was computed. [2020-10-29 09:40:31,594 INFO L274 CegarLoopResult]: For program point mainFINAL(lines 14 35) no Hoare annotation was computed. [2020-10-29 09:40:31,595 INFO L274 CegarLoopResult]: For program point L32(lines 32 33) no Hoare annotation was computed. [2020-10-29 09:40:31,595 INFO L277 CegarLoopResult]: At program point mainENTRY(lines 14 35) the Hoare annotation is: true [2020-10-29 09:40:31,595 INFO L274 CegarLoopResult]: For program point L22(lines 22 29) no Hoare annotation was computed. [2020-10-29 09:40:31,595 INFO L274 CegarLoopResult]: For program point L18-1(lines 18 31) no Hoare annotation was computed. [2020-10-29 09:40:31,595 INFO L274 CegarLoopResult]: For program point L18-3(lines 14 35) no Hoare annotation was computed. [2020-10-29 09:40:31,595 INFO L277 CegarLoopResult]: At program point __VERIFIER_assertENTRY(lines 8 12) the Hoare annotation is: true [2020-10-29 09:40:31,596 INFO L270 CegarLoopResult]: At program point L10(line 10) the Hoare annotation is: (not (<= 1 |__VERIFIER_assert_#in~cond|)) [2020-10-29 09:40:31,596 INFO L274 CegarLoopResult]: For program point __VERIFIER_assertEXIT(lines 8 12) no Hoare annotation was computed. [2020-10-29 09:40:31,596 INFO L274 CegarLoopResult]: For program point L9(lines 9 10) no Hoare annotation was computed. [2020-10-29 09:40:31,596 INFO L274 CegarLoopResult]: For program point L10-1(line 10) no Hoare annotation was computed. [2020-10-29 09:40:31,596 INFO L274 CegarLoopResult]: For program point L9-2(lines 8 12) no Hoare annotation was computed. [2020-10-29 09:40:31,616 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.10 09:40:31 BoogieIcfgContainer [2020-10-29 09:40:31,617 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-29 09:40:31,620 INFO L168 Benchmark]: Toolchain (without parser) took 12952.44 ms. Allocated memory was 164.6 MB in the beginning and 203.4 MB in the end (delta: 38.8 MB). Free memory was 145.3 MB in the beginning and 151.0 MB in the end (delta: -5.8 MB). Peak memory consumption was 32.7 MB. Max. memory is 8.0 GB. [2020-10-29 09:40:31,622 INFO L168 Benchmark]: CDTParser took 0.57 ms. Allocated memory is still 164.6 MB. Free memory is still 135.4 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-10-29 09:40:31,624 INFO L168 Benchmark]: CACSL2BoogieTranslator took 318.71 ms. Allocated memory is still 164.6 MB. Free memory was 144.6 MB in the beginning and 135.4 MB in the end (delta: 9.3 MB). Peak memory consumption was 9.4 MB. Max. memory is 8.0 GB. [2020-10-29 09:40:31,627 INFO L168 Benchmark]: Boogie Preprocessor took 63.83 ms. Allocated memory is still 164.6 MB. Free memory was 135.4 MB in the beginning and 148.1 MB in the end (delta: -12.8 MB). Peak memory consumption was 5.0 MB. Max. memory is 8.0 GB. [2020-10-29 09:40:31,629 INFO L168 Benchmark]: RCFGBuilder took 602.93 ms. Allocated memory is still 164.6 MB. Free memory was 148.1 MB in the beginning and 134.2 MB in the end (delta: 13.9 MB). Peak memory consumption was 13.6 MB. Max. memory is 8.0 GB. [2020-10-29 09:40:31,630 INFO L168 Benchmark]: TraceAbstraction took 11950.50 ms. Allocated memory was 164.6 MB in the beginning and 203.4 MB in the end (delta: 38.8 MB). Free memory was 133.7 MB in the beginning and 151.0 MB in the end (delta: -17.3 MB). Peak memory consumption was 22.5 MB. Max. memory is 8.0 GB. [2020-10-29 09:40:31,641 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.57 ms. Allocated memory is still 164.6 MB. Free memory is still 135.4 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 318.71 ms. Allocated memory is still 164.6 MB. Free memory was 144.6 MB in the beginning and 135.4 MB in the end (delta: 9.3 MB). Peak memory consumption was 9.4 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 63.83 ms. Allocated memory is still 164.6 MB. Free memory was 135.4 MB in the beginning and 148.1 MB in the end (delta: -12.8 MB). Peak memory consumption was 5.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 602.93 ms. Allocated memory is still 164.6 MB. Free memory was 148.1 MB in the beginning and 134.2 MB in the end (delta: 13.9 MB). Peak memory consumption was 13.6 MB. Max. memory is 8.0 GB. * TraceAbstraction took 11950.50 ms. Allocated memory was 164.6 MB in the beginning and 203.4 MB in the end (delta: 38.8 MB). Free memory was 133.7 MB in the beginning and 151.0 MB in the end (delta: -17.3 MB). Peak memory consumption was 22.5 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 3]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 18]: Loop Invariant Derived loop invariant: (y / 4294967296 <= 0 && 1 <= y) || 2863311531 * x <= 12297829383904690176 * (x / 4294967296) + 8589934592 * ((x + x / 4294967296 * -4294967296) / 3) + 12297829383904690176 * ((x + x / 4294967296 * -4294967296 + (x + x / 4294967296 * -4294967296) / 3 * -3) / 4294967296) + 1431655765 - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 28 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 11.4s, OverallIterations: 3, TraceHistogramMax: 2, AutomataDifference: 9.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.4s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 65 SDtfs, 76 SDslu, 46 SDs, 0 SdLazy, 140 SolverSat, 17 SolverUnsat, 4 SolverUnknown, 0 SolverNotchecked, 8.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 28 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=28occurred 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, 4 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 9 LocationsWithAnnotation, 19 PreInvPairs, 24 NumberOfFragments, 138 HoareAnnotationTreeSize, 19 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 9 FomulaSimplificationsInter, 305 FormulaSimplificationTreeSizeReductionInter, 0.3s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 1.4s InterpolantComputationTime, 48 NumberOfCodeBlocks, 48 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 45 ConstructedInterpolants, 0 QuantifiedInterpolants, 7847 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 4/4 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...