/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=LOWLEXORDER --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/ssh-simplified/s3_srvr_1b.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-24 21:36:09,098 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-24 21:36:09,102 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-24 21:36:09,128 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-24 21:36:09,129 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-24 21:36:09,130 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-24 21:36:09,132 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-24 21:36:09,134 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-24 21:36:09,136 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-24 21:36:09,137 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-24 21:36:09,138 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-24 21:36:09,140 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-24 21:36:09,140 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-24 21:36:09,141 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-24 21:36:09,142 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-24 21:36:09,144 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-24 21:36:09,145 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-24 21:36:09,146 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-24 21:36:09,148 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-24 21:36:09,150 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-24 21:36:09,151 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-24 21:36:09,153 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-24 21:36:09,154 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-24 21:36:09,155 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-24 21:36:09,157 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-24 21:36:09,158 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-24 21:36:09,158 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-24 21:36:09,159 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-24 21:36:09,160 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-24 21:36:09,161 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-24 21:36:09,161 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-24 21:36:09,162 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-24 21:36:09,163 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-24 21:36:09,164 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-24 21:36:09,166 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-24 21:36:09,166 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-24 21:36:09,167 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-24 21:36:09,167 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-24 21:36:09,167 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-24 21:36:09,168 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-24 21:36:09,169 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-24 21:36:09,170 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 [2020-09-24 21:36:09,197 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-24 21:36:09,198 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-24 21:36:09,199 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-24 21:36:09,199 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-24 21:36:09,200 INFO L138 SettingsManager]: * Use SBE=true [2020-09-24 21:36:09,200 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-24 21:36:09,200 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-24 21:36:09,200 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-24 21:36:09,200 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-24 21:36:09,201 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-24 21:36:09,201 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-24 21:36:09,201 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-24 21:36:09,201 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-24 21:36:09,201 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-24 21:36:09,202 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-24 21:36:09,202 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-24 21:36:09,202 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-24 21:36:09,202 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-24 21:36:09,202 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-24 21:36:09,203 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-24 21:36:09,203 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-24 21:36:09,203 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 21:36:09,203 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-24 21:36:09,204 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-24 21:36:09,204 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-24 21:36:09,204 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-24 21:36:09,204 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-24 21:36:09,204 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-24 21:36:09,205 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-24 21:36:09,205 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=LOWLEXORDER;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=LOWLEXORDER;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=LOWLEXORDER;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=LOWLEXORDER;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=LOWLEXORDER;log-additional-information=true; [2020-09-24 21:36:09,734 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-24 21:36:09,760 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-24 21:36:09,764 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-24 21:36:09,768 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-24 21:36:09,770 INFO L275 PluginConnector]: CDTParser initialized [2020-09-24 21:36:09,771 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ssh-simplified/s3_srvr_1b.cil.c [2020-09-24 21:36:09,850 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/abda18956/d97ae3e2bf924cf795dc3669cd514fe5/FLAG552cef8ae [2020-09-24 21:36:10,405 INFO L306 CDTParser]: Found 1 translation units. [2020-09-24 21:36:10,406 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/ssh-simplified/s3_srvr_1b.cil.c [2020-09-24 21:36:10,416 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/abda18956/d97ae3e2bf924cf795dc3669cd514fe5/FLAG552cef8ae [2020-09-24 21:36:10,741 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/abda18956/d97ae3e2bf924cf795dc3669cd514fe5 [2020-09-24 21:36:10,755 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-24 21:36:10,761 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-24 21:36:10,762 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-24 21:36:10,762 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-24 21:36:10,767 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-24 21:36:10,768 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 09:36:10" (1/1) ... [2020-09-24 21:36:10,772 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@332fc18c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:36:10, skipping insertion in model container [2020-09-24 21:36:10,773 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 09:36:10" (1/1) ... [2020-09-24 21:36:10,782 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-24 21:36:10,818 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-24 21:36:11,075 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 21:36:11,080 INFO L203 MainTranslator]: Completed pre-run [2020-09-24 21:36:11,101 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 21:36:11,119 INFO L208 MainTranslator]: Completed translation [2020-09-24 21:36:11,119 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:36:11 WrapperNode [2020-09-24 21:36:11,119 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-24 21:36:11,120 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-24 21:36:11,120 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-24 21:36:11,121 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-24 21:36:11,135 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:36:11" (1/1) ... [2020-09-24 21:36:11,135 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:36:11" (1/1) ... [2020-09-24 21:36:11,233 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:36:11" (1/1) ... [2020-09-24 21:36:11,234 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:36:11" (1/1) ... [2020-09-24 21:36:11,238 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:36:11" (1/1) ... [2020-09-24 21:36:11,245 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:36:11" (1/1) ... [2020-09-24 21:36:11,246 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:36:11" (1/1) ... [2020-09-24 21:36:11,248 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-24 21:36:11,249 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-24 21:36:11,249 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-24 21:36:11,249 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-24 21:36:11,251 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:36:11" (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 [2020-09-24 21:36:11,328 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-24 21:36:11,328 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-24 21:36:11,328 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-24 21:36:11,328 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-24 21:36:11,329 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2020-09-24 21:36:11,329 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-24 21:36:11,329 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_long [2020-09-24 21:36:11,329 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-24 21:36:11,329 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-24 21:36:11,330 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-24 21:36:11,650 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-24 21:36:11,650 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-09-24 21:36:11,656 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 09:36:11 BoogieIcfgContainer [2020-09-24 21:36:11,657 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-24 21:36:11,668 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-24 21:36:11,668 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-24 21:36:11,680 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-24 21:36:11,680 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.09 09:36:10" (1/3) ... [2020-09-24 21:36:11,681 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@19386696 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 09:36:11, skipping insertion in model container [2020-09-24 21:36:11,686 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:36:11" (2/3) ... [2020-09-24 21:36:11,686 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@19386696 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 09:36:11, skipping insertion in model container [2020-09-24 21:36:11,687 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 09:36:11" (3/3) ... [2020-09-24 21:36:11,691 INFO L109 eAbstractionObserver]: Analyzing ICFG s3_srvr_1b.cil.c [2020-09-24 21:36:11,708 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-24 21:36:11,719 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-24 21:36:11,742 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-24 21:36:11,779 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-24 21:36:11,779 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-24 21:36:11,779 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-24 21:36:11,779 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-24 21:36:11,779 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-24 21:36:11,780 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-24 21:36:11,780 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-24 21:36:11,780 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-24 21:36:11,806 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states. [2020-09-24 21:36:11,812 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-09-24 21:36:11,813 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 21:36:11,814 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 21:36:11,814 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 21:36:11,820 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 21:36:11,821 INFO L82 PathProgramCache]: Analyzing trace with hash -936940309, now seen corresponding path program 1 times [2020-09-24 21:36:11,829 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 21:36:11,830 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1523234373] [2020-09-24 21:36:11,830 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 21:36:11,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:36:11,956 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:36:12,009 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:36:12,009 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-09-24 21:36:12,010 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:36:12,010 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 68 [2020-09-24 21:36:12,012 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:36:12,012 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:36:12,012 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-09-24 21:36:12,013 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-24 21:36:12,013 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-24 21:36:12,079 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 21:36:12,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:36:12,083 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:36:12,085 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:36:12,085 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 21:36:12,086 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:36:12,086 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 21:36:12,086 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:36:12,086 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:36:12,087 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:36:12,087 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:36:12,087 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:36:12,094 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 21:36:12,095 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1523234373] [2020-09-24 21:36:12,098 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 21:36:12,098 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-24 21:36:12,100 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1519502101] [2020-09-24 21:36:12,106 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-24 21:36:12,106 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 21:36:12,125 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-24 21:36:12,126 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-24 21:36:12,129 INFO L87 Difference]: Start difference. First operand 48 states. Second operand 3 states. [2020-09-24 21:36:12,261 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 21:36:12,262 INFO L93 Difference]: Finished difference Result 110 states and 156 transitions. [2020-09-24 21:36:12,263 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-24 21:36:12,265 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 15 [2020-09-24 21:36:12,265 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 21:36:12,279 INFO L225 Difference]: With dead ends: 110 [2020-09-24 21:36:12,280 INFO L226 Difference]: Without dead ends: 66 [2020-09-24 21:36:12,284 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-24 21:36:12,304 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states. [2020-09-24 21:36:12,332 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 66. [2020-09-24 21:36:12,333 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 66 states. [2020-09-24 21:36:12,336 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 82 transitions. [2020-09-24 21:36:12,338 INFO L78 Accepts]: Start accepts. Automaton has 66 states and 82 transitions. Word has length 15 [2020-09-24 21:36:12,338 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 21:36:12,339 INFO L479 AbstractCegarLoop]: Abstraction has 66 states and 82 transitions. [2020-09-24 21:36:12,339 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-24 21:36:12,339 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 82 transitions. [2020-09-24 21:36:12,340 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-09-24 21:36:12,340 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 21:36:12,341 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 21:36:12,341 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-24 21:36:12,341 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 21:36:12,342 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 21:36:12,342 INFO L82 PathProgramCache]: Analyzing trace with hash -1261763386, now seen corresponding path program 1 times [2020-09-24 21:36:12,342 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 21:36:12,342 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1958710409] [2020-09-24 21:36:12,343 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 21:36:12,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:36:12,364 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:36:12,392 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:36:12,443 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:36:12,443 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-09-24 21:36:12,443 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 21:36:12,444 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 87 [2020-09-24 21:36:12,448 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:36:12,449 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:36:12,449 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 23 [2020-09-24 21:36:12,449 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-24 21:36:12,449 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-09-24 21:36:12,500 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 21:36:12,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:36:12,504 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:36:12,506 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:36:12,508 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 21:36:12,508 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:36:12,508 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 21:36:12,509 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:36:12,509 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:36:12,509 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:36:12,510 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:36:12,510 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:36:12,516 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 21:36:12,516 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1958710409] [2020-09-24 21:36:12,516 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 21:36:12,517 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-24 21:36:12,517 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [79785669] [2020-09-24 21:36:12,519 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-24 21:36:12,520 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 21:36:12,520 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-24 21:36:12,520 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-24 21:36:12,520 INFO L87 Difference]: Start difference. First operand 66 states and 82 transitions. Second operand 3 states. [2020-09-24 21:36:12,594 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 21:36:12,594 INFO L93 Difference]: Finished difference Result 120 states and 157 transitions. [2020-09-24 21:36:12,595 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-24 21:36:12,595 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 22 [2020-09-24 21:36:12,596 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 21:36:12,597 INFO L225 Difference]: With dead ends: 120 [2020-09-24 21:36:12,598 INFO L226 Difference]: Without dead ends: 90 [2020-09-24 21:36:12,599 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-24 21:36:12,600 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90 states. [2020-09-24 21:36:12,613 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90 to 90. [2020-09-24 21:36:12,613 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 90 states. [2020-09-24 21:36:12,616 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 90 states and 113 transitions. [2020-09-24 21:36:12,616 INFO L78 Accepts]: Start accepts. Automaton has 90 states and 113 transitions. Word has length 22 [2020-09-24 21:36:12,616 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 21:36:12,616 INFO L479 AbstractCegarLoop]: Abstraction has 90 states and 113 transitions. [2020-09-24 21:36:12,617 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-24 21:36:12,619 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 113 transitions. [2020-09-24 21:36:12,620 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2020-09-24 21:36:12,620 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 21:36:12,620 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-09-24 21:36:12,621 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-24 21:36:12,621 INFO L427 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 21:36:12,621 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 21:36:12,621 INFO L82 PathProgramCache]: Analyzing trace with hash 122238776, now seen corresponding path program 1 times [2020-09-24 21:36:12,622 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 21:36:12,623 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [151586046] [2020-09-24 21:36:12,623 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 21:36:12,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:36:12,667 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:36:12,708 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:36:12,709 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-09-24 21:36:12,709 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:36:12,709 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 57 [2020-09-24 21:36:12,710 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:36:12,710 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:36:12,710 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 33 [2020-09-24 21:36:12,710 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-24 21:36:12,711 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:36:12,730 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 21:36:12,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:36:12,732 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:36:12,734 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:36:12,734 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 21:36:12,735 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:36:12,735 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 21:36:12,735 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:36:12,735 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:36:12,736 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:36:12,736 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:36:12,736 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:36:12,740 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-09-24 21:36:12,741 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [151586046] [2020-09-24 21:36:12,741 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 21:36:12,741 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-24 21:36:12,742 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1710182334] [2020-09-24 21:36:12,742 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-24 21:36:12,743 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 21:36:12,743 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-24 21:36:12,743 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-24 21:36:12,744 INFO L87 Difference]: Start difference. First operand 90 states and 113 transitions. Second operand 3 states. [2020-09-24 21:36:12,818 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 21:36:12,819 INFO L93 Difference]: Finished difference Result 170 states and 220 transitions. [2020-09-24 21:36:12,819 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-24 21:36:12,820 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 30 [2020-09-24 21:36:12,820 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 21:36:12,821 INFO L225 Difference]: With dead ends: 170 [2020-09-24 21:36:12,822 INFO L226 Difference]: Without dead ends: 116 [2020-09-24 21:36:12,823 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-24 21:36:12,823 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 116 states. [2020-09-24 21:36:12,836 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 116 to 114. [2020-09-24 21:36:12,836 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 114 states. [2020-09-24 21:36:12,839 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 114 states and 146 transitions. [2020-09-24 21:36:12,843 INFO L78 Accepts]: Start accepts. Automaton has 114 states and 146 transitions. Word has length 30 [2020-09-24 21:36:12,843 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 21:36:12,843 INFO L479 AbstractCegarLoop]: Abstraction has 114 states and 146 transitions. [2020-09-24 21:36:12,844 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-24 21:36:12,844 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states and 146 transitions. [2020-09-24 21:36:12,845 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2020-09-24 21:36:12,845 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 21:36:12,846 INFO L422 BasicCegarLoop]: trace histogram [3, 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] [2020-09-24 21:36:12,846 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-24 21:36:12,846 INFO L427 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 21:36:12,846 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 21:36:12,847 INFO L82 PathProgramCache]: Analyzing trace with hash 1207592178, now seen corresponding path program 1 times [2020-09-24 21:36:12,848 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 21:36:12,848 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [403880252] [2020-09-24 21:36:12,848 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 21:36:12,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:36:12,884 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:36:12,963 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:36:12,964 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-09-24 21:36:12,964 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:36:12,964 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 94 [2020-09-24 21:36:12,964 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:36:12,965 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:36:12,965 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 37 [2020-09-24 21:36:12,965 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-24 21:36:12,966 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:36:13,010 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 21:36:13,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:36:13,013 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:36:13,015 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:36:13,015 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 21:36:13,015 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:36:13,016 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 21:36:13,016 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:36:13,016 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:36:13,016 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:36:13,017 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:36:13,017 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:36:13,032 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-09-24 21:36:13,033 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [403880252] [2020-09-24 21:36:13,033 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 21:36:13,033 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-24 21:36:13,034 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [876197140] [2020-09-24 21:36:13,034 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-24 21:36:13,034 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 21:36:13,035 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-24 21:36:13,035 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-24 21:36:13,035 INFO L87 Difference]: Start difference. First operand 114 states and 146 transitions. Second operand 3 states. [2020-09-24 21:36:13,090 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 21:36:13,090 INFO L93 Difference]: Finished difference Result 208 states and 272 transitions. [2020-09-24 21:36:13,091 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-24 21:36:13,091 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 34 [2020-09-24 21:36:13,091 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 21:36:13,092 INFO L225 Difference]: With dead ends: 208 [2020-09-24 21:36:13,092 INFO L226 Difference]: Without dead ends: 88 [2020-09-24 21:36:13,094 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-24 21:36:13,094 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 88 states. [2020-09-24 21:36:13,102 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 88 to 86. [2020-09-24 21:36:13,103 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 86 states. [2020-09-24 21:36:13,104 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 86 states and 102 transitions. [2020-09-24 21:36:13,104 INFO L78 Accepts]: Start accepts. Automaton has 86 states and 102 transitions. Word has length 34 [2020-09-24 21:36:13,104 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 21:36:13,105 INFO L479 AbstractCegarLoop]: Abstraction has 86 states and 102 transitions. [2020-09-24 21:36:13,105 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-24 21:36:13,105 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 102 transitions. [2020-09-24 21:36:13,106 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2020-09-24 21:36:13,107 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 21:36:13,107 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 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] [2020-09-24 21:36:13,107 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-24 21:36:13,107 INFO L427 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 21:36:13,108 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 21:36:13,108 INFO L82 PathProgramCache]: Analyzing trace with hash 340924863, now seen corresponding path program 1 times [2020-09-24 21:36:13,108 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 21:36:13,108 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [15879816] [2020-09-24 21:36:13,109 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 21:36:13,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:36:13,130 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:36:13,157 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:36:13,210 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:36:13,263 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:36:13,326 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:36:13,327 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 57 [2020-09-24 21:36:13,327 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-24 21:36:13,328 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 205 [2020-09-24 21:36:13,328 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:36:13,328 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:36:13,328 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 24 [2020-09-24 21:36:13,329 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-09-24 21:36:13,329 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:36:13,364 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 21:36:13,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:36:13,366 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:36:13,367 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:36:13,369 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 21:36:13,369 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:36:13,369 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 21:36:13,369 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:36:13,370 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:36:13,370 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:36:13,370 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:36:13,370 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:36:13,378 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 23 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-09-24 21:36:13,379 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [15879816] [2020-09-24 21:36:13,380 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 21:36:13,380 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-24 21:36:13,380 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [123295600] [2020-09-24 21:36:13,381 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-24 21:36:13,381 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 21:36:13,381 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-24 21:36:13,382 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-24 21:36:13,382 INFO L87 Difference]: Start difference. First operand 86 states and 102 transitions. Second operand 3 states. [2020-09-24 21:36:13,414 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 21:36:13,415 INFO L93 Difference]: Finished difference Result 132 states and 155 transitions. [2020-09-24 21:36:13,416 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-24 21:36:13,417 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 50 [2020-09-24 21:36:13,417 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 21:36:13,417 INFO L225 Difference]: With dead ends: 132 [2020-09-24 21:36:13,418 INFO L226 Difference]: Without dead ends: 0 [2020-09-24 21:36:13,419 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-24 21:36:13,419 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-09-24 21:36:13,420 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-09-24 21:36:13,421 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-09-24 21:36:13,421 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-09-24 21:36:13,421 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 50 [2020-09-24 21:36:13,423 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 21:36:13,423 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-09-24 21:36:13,424 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-24 21:36:13,424 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-09-24 21:36:13,424 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-09-24 21:36:13,425 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-24 21:36:13,430 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-09-24 21:36:13,652 INFO L271 CegarLoopResult]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2020-09-24 21:36:13,652 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-09-24 21:36:13,652 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-09-24 21:36:13,652 INFO L271 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true [2020-09-24 21:36:13,653 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-09-24 21:36:13,653 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-09-24 21:36:13,653 INFO L268 CegarLoopResult]: For program point L93(line 93) no Hoare annotation was computed. [2020-09-24 21:36:13,653 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 8 140) no Hoare annotation was computed. [2020-09-24 21:36:13,653 INFO L268 CegarLoopResult]: For program point L77-1(lines 53 106) no Hoare annotation was computed. [2020-09-24 21:36:13,653 INFO L268 CegarLoopResult]: For program point L11(line 11) no Hoare annotation was computed. [2020-09-24 21:36:13,653 INFO L268 CegarLoopResult]: For program point L69(lines 69 73) no Hoare annotation was computed. [2020-09-24 21:36:13,654 INFO L268 CegarLoopResult]: For program point L61(line 61) no Hoare annotation was computed. [2020-09-24 21:36:13,654 INFO L268 CegarLoopResult]: For program point L78(line 78) no Hoare annotation was computed. [2020-09-24 21:36:13,654 INFO L268 CegarLoopResult]: For program point L45(lines 45 110) no Hoare annotation was computed. [2020-09-24 21:36:13,654 INFO L268 CegarLoopResult]: For program point L12(line 12) no Hoare annotation was computed. [2020-09-24 21:36:13,654 INFO L271 CegarLoopResult]: At program point L136(lines 8 140) the Hoare annotation is: true [2020-09-24 21:36:13,654 INFO L268 CegarLoopResult]: For program point L70(line 70) no Hoare annotation was computed. [2020-09-24 21:36:13,655 INFO L268 CegarLoopResult]: For program point L95(lines 95 97) no Hoare annotation was computed. [2020-09-24 21:36:13,655 INFO L268 CegarLoopResult]: For program point L29(lines 29 124) no Hoare annotation was computed. [2020-09-24 21:36:13,655 INFO L264 CegarLoopResult]: At program point L46(lines 45 110) the Hoare annotation is: (let ((.cse0 (<= 8640 main_~s__state~0))) (or (and .cse0 (<= main_~blastFlag~0 2)) (and .cse0 (<= main_~blastFlag~0 3) (not (= main_~s__hit~0 0))))) [2020-09-24 21:36:13,655 INFO L268 CegarLoopResult]: For program point mainFINAL(lines 8 140) no Hoare annotation was computed. [2020-09-24 21:36:13,655 INFO L264 CegarLoopResult]: At program point L96(lines 8 140) the Hoare annotation is: false [2020-09-24 21:36:13,655 INFO L268 CegarLoopResult]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 138) no Hoare annotation was computed. [2020-09-24 21:36:13,656 INFO L268 CegarLoopResult]: For program point L63(line 63) no Hoare annotation was computed. [2020-09-24 21:36:13,656 INFO L264 CegarLoopResult]: At program point L30(lines 29 124) the Hoare annotation is: (<= main_~blastFlag~0 2) [2020-09-24 21:36:13,656 INFO L271 CegarLoopResult]: At program point mainENTRY(lines 8 140) the Hoare annotation is: true [2020-09-24 21:36:13,656 INFO L268 CegarLoopResult]: For program point L88-1(lines 53 106) no Hoare annotation was computed. [2020-09-24 21:36:13,656 INFO L268 CegarLoopResult]: For program point L14(line 14) no Hoare annotation was computed. [2020-09-24 21:36:13,656 INFO L268 CegarLoopResult]: For program point L72(line 72) no Hoare annotation was computed. [2020-09-24 21:36:13,656 INFO L268 CegarLoopResult]: For program point L89(line 89) no Hoare annotation was computed. [2020-09-24 21:36:13,657 INFO L268 CegarLoopResult]: For program point L15(line 15) no Hoare annotation was computed. [2020-09-24 21:36:13,657 INFO L268 CegarLoopResult]: For program point L139(line 139) no Hoare annotation was computed. [2020-09-24 21:36:13,657 INFO L268 CegarLoopResult]: For program point L24(lines 24 127) no Hoare annotation was computed. [2020-09-24 21:36:13,657 INFO L268 CegarLoopResult]: For program point L57-1(lines 53 106) no Hoare annotation was computed. [2020-09-24 21:36:13,657 INFO L268 CegarLoopResult]: For program point L49(lines 49 108) no Hoare annotation was computed. [2020-09-24 21:36:13,657 INFO L264 CegarLoopResult]: At program point L99(lines 17 134) the Hoare annotation is: (or (and (<= 8640 main_~s__state~0) (<= main_~blastFlag~0 3) (not (= main_~s__hit~0 0))) (<= main_~blastFlag~0 2)) [2020-09-24 21:36:13,658 INFO L268 CegarLoopResult]: For program point L58(line 58) no Hoare annotation was computed. [2020-09-24 21:36:13,658 INFO L264 CegarLoopResult]: At program point L25(lines 24 127) the Hoare annotation is: (<= main_~blastFlag~0 2) [2020-09-24 21:36:13,658 INFO L268 CegarLoopResult]: For program point L83(line 83) no Hoare annotation was computed. [2020-09-24 21:36:13,658 INFO L264 CegarLoopResult]: At program point L50(lines 49 108) the Hoare annotation is: (let ((.cse0 (<= 8640 main_~s__state~0))) (or (and .cse0 (<= main_~blastFlag~0 2)) (and .cse0 (<= main_~blastFlag~0 3) (not (= main_~s__hit~0 0))))) [2020-09-24 21:36:13,658 INFO L268 CegarLoopResult]: For program point L100(line 100) no Hoare annotation was computed. [2020-09-24 21:36:13,659 INFO L268 CegarLoopResult]: For program point L92-1(lines 53 106) no Hoare annotation was computed. [2020-09-24 21:36:13,659 INFO L268 CegarLoopResult]: For program point L18(line 18) no Hoare annotation was computed. [2020-09-24 21:36:13,659 INFO L268 CegarLoopResult]: For program point L10(line 10) no Hoare annotation was computed. [2020-09-24 21:36:13,659 INFO L268 CegarLoopResult]: For program point L10-1(line 10) no Hoare annotation was computed. [2020-09-24 21:36:13,659 INFO L268 CegarLoopResult]: For program point L10-2(line 10) no Hoare annotation was computed. [2020-09-24 21:36:13,659 INFO L268 CegarLoopResult]: For program point L68(line 68) no Hoare annotation was computed. [2020-09-24 21:36:13,659 INFO L268 CegarLoopResult]: For program point L68-1(line 68) no Hoare annotation was computed. [2020-09-24 21:36:13,684 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.09 09:36:13 BoogieIcfgContainer [2020-09-24 21:36:13,684 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-24 21:36:13,688 INFO L168 Benchmark]: Toolchain (without parser) took 2929.85 ms. Allocated memory was 146.3 MB in the beginning and 235.9 MB in the end (delta: 89.7 MB). Free memory was 102.8 MB in the beginning and 155.4 MB in the end (delta: -52.6 MB). Peak memory consumption was 37.1 MB. Max. memory is 7.1 GB. [2020-09-24 21:36:13,689 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 146.3 MB. Free memory was 121.0 MB in the beginning and 120.5 MB in the end (delta: 419.8 kB). Peak memory consumption was 419.8 kB. Max. memory is 7.1 GB. [2020-09-24 21:36:13,690 INFO L168 Benchmark]: CACSL2BoogieTranslator took 357.76 ms. Allocated memory is still 146.3 MB. Free memory was 102.4 MB in the beginning and 91.6 MB in the end (delta: 10.8 MB). Peak memory consumption was 10.8 MB. Max. memory is 7.1 GB. [2020-09-24 21:36:13,691 INFO L168 Benchmark]: Boogie Preprocessor took 128.43 ms. Allocated memory was 146.3 MB in the beginning and 202.4 MB in the end (delta: 56.1 MB). Free memory was 91.6 MB in the beginning and 180.7 MB in the end (delta: -89.1 MB). Peak memory consumption was 10.3 MB. Max. memory is 7.1 GB. [2020-09-24 21:36:13,692 INFO L168 Benchmark]: RCFGBuilder took 407.62 ms. Allocated memory is still 202.4 MB. Free memory was 180.7 MB in the beginning and 164.2 MB in the end (delta: 16.5 MB). Peak memory consumption was 16.5 MB. Max. memory is 7.1 GB. [2020-09-24 21:36:13,693 INFO L168 Benchmark]: TraceAbstraction took 2016.82 ms. Allocated memory was 202.4 MB in the beginning and 235.9 MB in the end (delta: 33.6 MB). Free memory was 164.2 MB in the beginning and 155.4 MB in the end (delta: 8.8 MB). Peak memory consumption was 42.4 MB. Max. memory is 7.1 GB. [2020-09-24 21:36:13,697 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 ms. Allocated memory is still 146.3 MB. Free memory was 121.0 MB in the beginning and 120.5 MB in the end (delta: 419.8 kB). Peak memory consumption was 419.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 357.76 ms. Allocated memory is still 146.3 MB. Free memory was 102.4 MB in the beginning and 91.6 MB in the end (delta: 10.8 MB). Peak memory consumption was 10.8 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 128.43 ms. Allocated memory was 146.3 MB in the beginning and 202.4 MB in the end (delta: 56.1 MB). Free memory was 91.6 MB in the beginning and 180.7 MB in the end (delta: -89.1 MB). Peak memory consumption was 10.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 407.62 ms. Allocated memory is still 202.4 MB. Free memory was 180.7 MB in the beginning and 164.2 MB in the end (delta: 16.5 MB). Peak memory consumption was 16.5 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2016.82 ms. Allocated memory was 202.4 MB in the beginning and 235.9 MB in the end (delta: 33.6 MB). Free memory was 164.2 MB in the beginning and 155.4 MB in the end (delta: 8.8 MB). Peak memory consumption was 42.4 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 138]: 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: 49]: Loop Invariant Derived loop invariant: (8640 <= s__state && blastFlag <= 2) || ((8640 <= s__state && blastFlag <= 3) && !(s__hit == 0)) - InvariantResult [Line: 8]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 17]: Loop Invariant Derived loop invariant: ((8640 <= s__state && blastFlag <= 3) && !(s__hit == 0)) || blastFlag <= 2 - InvariantResult [Line: 29]: Loop Invariant Derived loop invariant: blastFlag <= 2 - InvariantResult [Line: 45]: Loop Invariant Derived loop invariant: (8640 <= s__state && blastFlag <= 2) || ((8640 <= s__state && blastFlag <= 3) && !(s__hit == 0)) - InvariantResult [Line: 24]: Loop Invariant Derived loop invariant: blastFlag <= 2 - InvariantResult [Line: 8]: Loop Invariant Derived loop invariant: 0 - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 48 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 1.6s, OverallIterations: 5, TraceHistogramMax: 4, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.2s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 239 SDtfs, 115 SDslu, 168 SDs, 0 SdLazy, 87 SolverSat, 25 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 25 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=114occurred in iteration=3, 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, 5 MinimizatonAttempts, 4 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 11 LocationsWithAnnotation, 11 PreInvPairs, 31 NumberOfFragments, 65 HoareAnnotationTreeSize, 11 FomulaSimplifications, 123 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 11 FomulaSimplificationsInter, 18 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.8s InterpolantComputationTime, 151 NumberOfCodeBlocks, 151 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 146 ConstructedInterpolants, 0 QuantifiedInterpolants, 8527 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 40/40 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...