/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 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=WIDESTAMONGSMALL --traceabstraction.additional.smt.options tolerance=0.4 --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 -i ../../../trunk/examples/svcomp/array-industry-pattern/array_of_struct_ptr_flag_init.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-13 23:56:49,135 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-13 23:56:49,138 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-13 23:56:49,162 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-13 23:56:49,162 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-13 23:56:49,163 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-13 23:56:49,165 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-13 23:56:49,166 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-13 23:56:49,168 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-13 23:56:49,169 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-13 23:56:49,170 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-13 23:56:49,171 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-13 23:56:49,171 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-13 23:56:49,172 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-13 23:56:49,173 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-13 23:56:49,174 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-13 23:56:49,175 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-13 23:56:49,176 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-13 23:56:49,177 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-13 23:56:49,179 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-13 23:56:49,181 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-13 23:56:49,182 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-13 23:56:49,183 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-13 23:56:49,183 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-13 23:56:49,186 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-13 23:56:49,186 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-13 23:56:49,186 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-13 23:56:49,187 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-13 23:56:49,188 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-13 23:56:49,188 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-13 23:56:49,189 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-13 23:56:49,189 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-13 23:56:49,190 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-13 23:56:49,191 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-13 23:56:49,192 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-13 23:56:49,192 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-13 23:56:49,192 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-13 23:56:49,193 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-13 23:56:49,193 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-13 23:56:49,194 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-13 23:56:49,194 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-13 23:56:49,195 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 [2020-10-13 23:56:49,224 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-13 23:56:49,225 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-13 23:56:49,228 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-13 23:56:49,229 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-13 23:56:49,229 INFO L138 SettingsManager]: * Use SBE=true [2020-10-13 23:56:49,229 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-13 23:56:49,229 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-13 23:56:49,230 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-13 23:56:49,230 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-13 23:56:49,230 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-13 23:56:49,230 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-13 23:56:49,230 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-13 23:56:49,230 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-13 23:56:49,231 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-13 23:56:49,231 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-13 23:56:49,231 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-13 23:56:49,231 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-13 23:56:49,231 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-13 23:56:49,232 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-13 23:56:49,232 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-13 23:56:49,232 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-13 23:56:49,232 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-13 23:56:49,232 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-13 23:56:49,233 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-13 23:56:49,233 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-13 23:56:49,233 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-13 23:56:49,235 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-13 23:56:49,235 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-13 23:56:49,236 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-13 23:56:49,236 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 -> 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=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=true; [2020-10-13 23:56:49,588 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-13 23:56:49,608 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-13 23:56:49,612 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-13 23:56:49,613 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-13 23:56:49,614 INFO L275 PluginConnector]: CDTParser initialized [2020-10-13 23:56:49,615 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/array-industry-pattern/array_of_struct_ptr_flag_init.i [2020-10-13 23:56:49,688 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/b8217704a/c0ae7a519cd9470cabe252d2486a90e2/FLAGf61712cd5 [2020-10-13 23:56:50,172 INFO L306 CDTParser]: Found 1 translation units. [2020-10-13 23:56:50,173 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/array-industry-pattern/array_of_struct_ptr_flag_init.i [2020-10-13 23:56:50,180 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/b8217704a/c0ae7a519cd9470cabe252d2486a90e2/FLAGf61712cd5 [2020-10-13 23:56:50,542 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/b8217704a/c0ae7a519cd9470cabe252d2486a90e2 [2020-10-13 23:56:50,553 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-13 23:56:50,555 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-13 23:56:50,556 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-13 23:56:50,556 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-13 23:56:50,560 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-13 23:56:50,561 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 11:56:50" (1/1) ... [2020-10-13 23:56:50,564 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@739fa67f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:56:50, skipping insertion in model container [2020-10-13 23:56:50,564 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 11:56:50" (1/1) ... [2020-10-13 23:56:50,572 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-13 23:56:50,590 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-13 23:56:50,777 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-13 23:56:50,784 INFO L203 MainTranslator]: Completed pre-run [2020-10-13 23:56:50,804 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-13 23:56:50,817 INFO L208 MainTranslator]: Completed translation [2020-10-13 23:56:50,818 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:56:50 WrapperNode [2020-10-13 23:56:50,818 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-13 23:56:50,819 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-13 23:56:50,819 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-13 23:56:50,819 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-13 23:56:50,910 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:56:50" (1/1) ... [2020-10-13 23:56:50,910 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:56:50" (1/1) ... [2020-10-13 23:56:50,918 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:56:50" (1/1) ... [2020-10-13 23:56:50,918 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:56:50" (1/1) ... [2020-10-13 23:56:50,926 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:56:50" (1/1) ... [2020-10-13 23:56:50,931 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:56:50" (1/1) ... [2020-10-13 23:56:50,933 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:56:50" (1/1) ... [2020-10-13 23:56:50,936 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-13 23:56:50,936 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-13 23:56:50,936 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-13 23:56:50,936 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-13 23:56:50,937 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:56:50" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-13 23:56:50,997 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-13 23:56:50,997 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-13 23:56:50,997 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-10-13 23:56:50,998 INFO L138 BoogieDeclarations]: Found implementation of procedure init [2020-10-13 23:56:50,998 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-13 23:56:50,998 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-10-13 23:56:50,998 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-13 23:56:50,998 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-10-13 23:56:50,998 INFO L130 BoogieDeclarations]: Found specification of procedure init [2020-10-13 23:56:50,999 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-10-13 23:56:50,999 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-10-13 23:56:50,999 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-13 23:56:50,999 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-13 23:56:50,999 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-10-13 23:56:50,999 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-13 23:56:51,002 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-13 23:56:51,002 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-13 23:56:51,257 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-13 23:56:51,257 INFO L295 CfgBuilder]: Removed 3 assume(true) statements. [2020-10-13 23:56:51,262 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 11:56:51 BoogieIcfgContainer [2020-10-13 23:56:51,262 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-13 23:56:51,263 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-13 23:56:51,264 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-13 23:56:51,267 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-13 23:56:51,267 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 11:56:50" (1/3) ... [2020-10-13 23:56:51,268 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3aa88ba3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 11:56:51, skipping insertion in model container [2020-10-13 23:56:51,268 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:56:50" (2/3) ... [2020-10-13 23:56:51,269 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3aa88ba3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 11:56:51, skipping insertion in model container [2020-10-13 23:56:51,269 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 11:56:51" (3/3) ... [2020-10-13 23:56:51,271 INFO L109 eAbstractionObserver]: Analyzing ICFG array_of_struct_ptr_flag_init.i [2020-10-13 23:56:51,282 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-13 23:56:51,290 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-13 23:56:51,305 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-13 23:56:51,338 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-13 23:56:51,338 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-13 23:56:51,338 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-13 23:56:51,338 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-13 23:56:51,339 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-13 23:56:51,339 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-13 23:56:51,339 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-13 23:56:51,340 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-13 23:56:51,364 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states. [2020-10-13 23:56:51,372 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2020-10-13 23:56:51,372 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 23:56:51,373 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 23:56:51,374 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 23:56:51,383 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 23:56:51,384 INFO L82 PathProgramCache]: Analyzing trace with hash -850547107, now seen corresponding path program 1 times [2020-10-13 23:56:51,397 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 23:56:51,398 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [744918213] [2020-10-13 23:56:51,398 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 23:56:51,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:56:51,565 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:56:51,629 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:56:51,827 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:56:51,827 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 30 [2020-10-13 23:56:51,827 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 23:56:51,828 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 289 [2020-10-13 23:56:51,831 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-13 23:56:51,831 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-13 23:56:51,831 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 23:56:51,832 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 20 [2020-10-13 23:56:51,832 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 23:56:51,832 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-10-13 23:56:51,900 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 23:56:51,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:56:51,911 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:56:51,918 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:56:51,918 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 23:56:51,919 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 23:56:51,919 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-13 23:56:51,922 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-13 23:56:51,923 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-13 23:56:51,923 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 23:56:51,923 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 23:56:51,924 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 23:56:51,924 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 23:56:51,975 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 23:56:51,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:56:51,980 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:56:51,995 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:56:52,025 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:56:52,025 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 23:56:52,026 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 23:56:52,026 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 45 [2020-10-13 23:56:52,026 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-13 23:56:52,027 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-13 23:56:52,030 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 23:56:52,031 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 23:56:52,031 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 23:56:52,031 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-10-13 23:56:52,043 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 23:56:52,044 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [744918213] [2020-10-13 23:56:52,047 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 23:56:52,047 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-13 23:56:52,049 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2020118455] [2020-10-13 23:56:52,059 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-13 23:56:52,059 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 23:56:52,074 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-13 23:56:52,076 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-13 23:56:52,078 INFO L87 Difference]: Start difference. First operand 33 states. Second operand 4 states. [2020-10-13 23:56:52,241 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 23:56:52,242 INFO L93 Difference]: Finished difference Result 59 states and 76 transitions. [2020-10-13 23:56:52,242 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-13 23:56:52,244 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 20 [2020-10-13 23:56:52,244 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 23:56:52,255 INFO L225 Difference]: With dead ends: 59 [2020-10-13 23:56:52,255 INFO L226 Difference]: Without dead ends: 31 [2020-10-13 23:56:52,258 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-13 23:56:52,275 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2020-10-13 23:56:52,294 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 28. [2020-10-13 23:56:52,295 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2020-10-13 23:56:52,296 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 32 transitions. [2020-10-13 23:56:52,298 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 32 transitions. Word has length 20 [2020-10-13 23:56:52,298 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 23:56:52,298 INFO L479 AbstractCegarLoop]: Abstraction has 28 states and 32 transitions. [2020-10-13 23:56:52,298 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-13 23:56:52,298 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 32 transitions. [2020-10-13 23:56:52,299 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2020-10-13 23:56:52,299 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 23:56:52,299 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 23:56:52,300 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-13 23:56:52,300 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 23:56:52,300 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 23:56:52,300 INFO L82 PathProgramCache]: Analyzing trace with hash 1453375688, now seen corresponding path program 1 times [2020-10-13 23:56:52,301 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 23:56:52,301 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [42625714] [2020-10-13 23:56:52,301 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 23:56:52,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:56:52,325 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:56:52,348 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:56:52,567 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:56:52,567 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 30 [2020-10-13 23:56:52,568 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 23:56:52,568 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 250 [2020-10-13 23:56:52,584 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-13 23:56:52,585 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-13 23:56:52,585 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 23:56:52,585 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 19 [2020-10-13 23:56:52,585 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-13 23:56:52,585 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 23:56:52,626 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 23:56:52,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:56:52,632 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:56:52,637 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:56:52,637 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 23:56:52,638 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 23:56:52,639 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 23:56:52,639 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-13 23:56:52,640 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-13 23:56:52,640 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 23:56:52,640 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 23:56:52,640 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 23:56:52,641 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 23:56:52,665 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 23:56:52,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:56:52,669 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:56:52,672 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:56:52,686 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:56:52,686 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 23:56:52,687 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 23:56:52,687 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-13 23:56:52,688 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-13 23:56:52,688 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-13 23:56:52,688 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 23:56:52,689 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 23:56:52,689 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 23:56:52,689 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 23:56:52,697 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 23:56:52,698 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [42625714] [2020-10-13 23:56:52,698 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 23:56:52,698 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-13 23:56:52,699 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1507077246] [2020-10-13 23:56:52,704 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-13 23:56:52,704 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 23:56:52,705 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-13 23:56:52,705 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-13 23:56:52,705 INFO L87 Difference]: Start difference. First operand 28 states and 32 transitions. Second operand 5 states. [2020-10-13 23:56:52,890 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 23:56:52,890 INFO L93 Difference]: Finished difference Result 51 states and 61 transitions. [2020-10-13 23:56:52,891 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-13 23:56:52,891 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 20 [2020-10-13 23:56:52,892 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 23:56:52,894 INFO L225 Difference]: With dead ends: 51 [2020-10-13 23:56:52,894 INFO L226 Difference]: Without dead ends: 39 [2020-10-13 23:56:52,895 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-13 23:56:52,896 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2020-10-13 23:56:52,915 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 29. [2020-10-13 23:56:52,915 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29 states. [2020-10-13 23:56:52,916 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 33 transitions. [2020-10-13 23:56:52,916 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 33 transitions. Word has length 20 [2020-10-13 23:56:52,917 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 23:56:52,917 INFO L479 AbstractCegarLoop]: Abstraction has 29 states and 33 transitions. [2020-10-13 23:56:52,917 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-13 23:56:52,917 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 33 transitions. [2020-10-13 23:56:52,918 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2020-10-13 23:56:52,918 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 23:56:52,918 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 23:56:52,919 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-13 23:56:52,919 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 23:56:52,919 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 23:56:52,919 INFO L82 PathProgramCache]: Analyzing trace with hash 1976547036, now seen corresponding path program 1 times [2020-10-13 23:56:52,920 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 23:56:52,920 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1503124353] [2020-10-13 23:56:52,920 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 23:56:52,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:56:52,938 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:56:52,949 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:56:52,961 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:56:53,194 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:56:53,194 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-13 23:56:53,194 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 23:56:53,194 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 261 [2020-10-13 23:56:53,195 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-13 23:56:53,195 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-13 23:56:53,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 23:56:53,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21 [2020-10-13 23:56:53,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 23:56:53,196 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 23:56:53,219 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 23:56:53,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:56:53,221 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:56:53,223 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:56:53,223 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 23:56:53,224 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 23:56:53,224 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 23:56:53,224 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-13 23:56:53,224 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-13 23:56:53,225 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 23:56:53,225 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 23:56:53,225 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 23:56:53,225 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 23:56:53,241 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 23:56:53,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:56:53,244 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:56:53,247 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:56:53,253 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:56:53,253 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 23:56:53,254 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 23:56:53,254 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-13 23:56:53,254 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-13 23:56:53,254 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-13 23:56:53,255 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 23:56:53,255 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 23:56:53,255 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 23:56:53,255 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 23:56:53,259 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 23:56:53,260 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1503124353] [2020-10-13 23:56:53,260 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 23:56:53,260 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-13 23:56:53,261 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [327111438] [2020-10-13 23:56:53,261 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-13 23:56:53,262 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 23:56:53,262 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-13 23:56:53,262 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-13 23:56:53,263 INFO L87 Difference]: Start difference. First operand 29 states and 33 transitions. Second operand 5 states. [2020-10-13 23:56:53,376 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 23:56:53,377 INFO L93 Difference]: Finished difference Result 50 states and 59 transitions. [2020-10-13 23:56:53,377 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-13 23:56:53,378 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 23 [2020-10-13 23:56:53,378 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 23:56:53,379 INFO L225 Difference]: With dead ends: 50 [2020-10-13 23:56:53,379 INFO L226 Difference]: Without dead ends: 32 [2020-10-13 23:56:53,380 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-13 23:56:53,380 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2020-10-13 23:56:53,386 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 29. [2020-10-13 23:56:53,386 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29 states. [2020-10-13 23:56:53,387 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 32 transitions. [2020-10-13 23:56:53,388 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 32 transitions. Word has length 23 [2020-10-13 23:56:53,388 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 23:56:53,388 INFO L479 AbstractCegarLoop]: Abstraction has 29 states and 32 transitions. [2020-10-13 23:56:53,388 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-13 23:56:53,389 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 32 transitions. [2020-10-13 23:56:53,389 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2020-10-13 23:56:53,390 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 23:56:53,390 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 23:56:53,390 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-13 23:56:53,391 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 23:56:53,391 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 23:56:53,391 INFO L82 PathProgramCache]: Analyzing trace with hash 1583520026, now seen corresponding path program 1 times [2020-10-13 23:56:53,391 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 23:56:53,392 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [52053060] [2020-10-13 23:56:53,392 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 23:56:53,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:56:53,411 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:56:53,423 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:56:53,522 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:56:53,818 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:56:53,819 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-13 23:56:53,819 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 23:56:53,819 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 414 [2020-10-13 23:56:53,819 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-13 23:56:53,820 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-13 23:56:53,820 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-13 23:56:53,820 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 19 [2020-10-13 23:56:53,820 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-13 23:56:53,820 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 23:56:53,850 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 23:56:53,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:56:53,852 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:56:53,853 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:56:53,854 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 23:56:53,854 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 23:56:53,854 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 23:56:53,854 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-13 23:56:53,855 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-13 23:56:53,855 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 23:56:53,855 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 23:56:53,855 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 23:56:53,856 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 23:56:53,872 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 23:56:53,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:56:53,874 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:56:53,878 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:56:53,883 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:56:53,883 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 23:56:53,884 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 23:56:53,884 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-13 23:56:53,884 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-13 23:56:53,884 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-13 23:56:53,885 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 23:56:53,885 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 23:56:53,885 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 23:56:53,885 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 23:56:53,888 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 23:56:53,889 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [52053060] [2020-10-13 23:56:53,889 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 23:56:53,889 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-10-13 23:56:53,889 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [247097213] [2020-10-13 23:56:53,890 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-13 23:56:53,890 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 23:56:53,890 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-13 23:56:53,891 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-10-13 23:56:53,891 INFO L87 Difference]: Start difference. First operand 29 states and 32 transitions. Second operand 6 states. [2020-10-13 23:56:54,037 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 23:56:54,037 INFO L93 Difference]: Finished difference Result 59 states and 69 transitions. [2020-10-13 23:56:54,038 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 23:56:54,038 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 23 [2020-10-13 23:56:54,039 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 23:56:54,040 INFO L225 Difference]: With dead ends: 59 [2020-10-13 23:56:54,040 INFO L226 Difference]: Without dead ends: 47 [2020-10-13 23:56:54,041 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-13 23:56:54,041 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2020-10-13 23:56:54,046 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 32. [2020-10-13 23:56:54,047 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32 states. [2020-10-13 23:56:54,048 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 35 transitions. [2020-10-13 23:56:54,048 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 35 transitions. Word has length 23 [2020-10-13 23:56:54,048 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 23:56:54,048 INFO L479 AbstractCegarLoop]: Abstraction has 32 states and 35 transitions. [2020-10-13 23:56:54,049 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-13 23:56:54,049 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 35 transitions. [2020-10-13 23:56:54,050 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2020-10-13 23:56:54,050 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 23:56:54,050 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 23:56:54,050 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-13 23:56:54,051 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 23:56:54,051 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 23:56:54,051 INFO L82 PathProgramCache]: Analyzing trace with hash 358025096, now seen corresponding path program 2 times [2020-10-13 23:56:54,051 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 23:56:54,052 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1987052244] [2020-10-13 23:56:54,052 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 23:56:54,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:56:54,066 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:56:54,075 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:56:54,153 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:56:54,544 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:56:54,544 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 36 [2020-10-13 23:56:54,544 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 23:56:54,545 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 482 [2020-10-13 23:56:54,545 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-13 23:56:54,545 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-13 23:56:54,545 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 23:56:54,545 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 19 [2020-10-13 23:56:54,546 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-13 23:56:54,546 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 23:56:54,580 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 23:56:54,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:56:54,582 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:56:54,584 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:56:54,584 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 23:56:54,584 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 23:56:54,584 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 23:56:54,584 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-13 23:56:54,585 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-13 23:56:54,585 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 23:56:54,585 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 23:56:54,585 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 23:56:54,586 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 23:56:54,601 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 23:56:54,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:56:54,604 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:56:54,606 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:56:54,610 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:56:54,610 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 23:56:54,611 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 23:56:54,611 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-13 23:56:54,611 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-13 23:56:54,611 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-13 23:56:54,611 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 23:56:54,612 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 23:56:54,612 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 23:56:54,612 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 23:56:54,615 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 23:56:54,616 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1987052244] [2020-10-13 23:56:54,616 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 23:56:54,616 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-13 23:56:54,616 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [800892581] [2020-10-13 23:56:54,617 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-13 23:56:54,617 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 23:56:54,617 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-13 23:56:54,617 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-13 23:56:54,618 INFO L87 Difference]: Start difference. First operand 32 states and 35 transitions. Second operand 7 states. [2020-10-13 23:56:54,772 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 23:56:54,772 INFO L93 Difference]: Finished difference Result 67 states and 79 transitions. [2020-10-13 23:56:54,773 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-13 23:56:54,773 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 26 [2020-10-13 23:56:54,773 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 23:56:54,774 INFO L225 Difference]: With dead ends: 67 [2020-10-13 23:56:54,775 INFO L226 Difference]: Without dead ends: 55 [2020-10-13 23:56:54,775 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2020-10-13 23:56:54,776 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states. [2020-10-13 23:56:54,781 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 35. [2020-10-13 23:56:54,781 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35 states. [2020-10-13 23:56:54,782 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 38 transitions. [2020-10-13 23:56:54,783 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 38 transitions. Word has length 26 [2020-10-13 23:56:54,783 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 23:56:54,783 INFO L479 AbstractCegarLoop]: Abstraction has 35 states and 38 transitions. [2020-10-13 23:56:54,783 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-13 23:56:54,783 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 38 transitions. [2020-10-13 23:56:54,784 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2020-10-13 23:56:54,784 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 23:56:54,784 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 23:56:54,784 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-13 23:56:54,785 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 23:56:54,785 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 23:56:54,785 INFO L82 PathProgramCache]: Analyzing trace with hash -1139418534, now seen corresponding path program 3 times [2020-10-13 23:56:54,785 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 23:56:54,786 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1851066906] [2020-10-13 23:56:54,786 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 23:56:54,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:56:54,799 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:56:54,819 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:56:54,906 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:56:55,450 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:56:55,450 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 39 [2020-10-13 23:56:55,450 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 23:56:55,451 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 654 [2020-10-13 23:56:55,451 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-13 23:56:55,451 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-13 23:56:55,451 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-13 23:56:55,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-10-13 23:56:55,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-13 23:56:55,452 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 23:56:55,472 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 23:56:55,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:56:55,474 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:56:55,475 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:56:55,476 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 23:56:55,476 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 23:56:55,476 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 23:56:55,476 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-13 23:56:55,476 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-13 23:56:55,477 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 23:56:55,477 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 23:56:55,477 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 23:56:55,477 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 23:56:55,491 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 23:56:55,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:56:55,495 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:56:55,500 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:56:55,501 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 23:56:55,501 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 23:56:55,501 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-13 23:56:55,501 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-13 23:56:55,502 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-13 23:56:55,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-13 23:56:55,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-13 23:56:55,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 23:56:55,503 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 23:56:55,551 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2020-10-13 23:56:55,552 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1851066906] [2020-10-13 23:56:55,552 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 23:56:55,552 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-13 23:56:55,552 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1377141722] [2020-10-13 23:56:55,553 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-13 23:56:55,553 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 23:56:55,553 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-13 23:56:55,554 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-10-13 23:56:55,554 INFO L87 Difference]: Start difference. First operand 35 states and 38 transitions. Second operand 6 states. [2020-10-13 23:56:55,730 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 23:56:55,730 INFO L93 Difference]: Finished difference Result 62 states and 68 transitions. [2020-10-13 23:56:55,731 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-13 23:56:55,731 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 29 [2020-10-13 23:56:55,731 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 23:56:55,732 INFO L225 Difference]: With dead ends: 62 [2020-10-13 23:56:55,732 INFO L226 Difference]: Without dead ends: 37 [2020-10-13 23:56:55,733 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-10-13 23:56:55,733 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2020-10-13 23:56:55,737 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 36. [2020-10-13 23:56:55,737 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2020-10-13 23:56:55,738 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 39 transitions. [2020-10-13 23:56:55,738 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 39 transitions. Word has length 29 [2020-10-13 23:56:55,738 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 23:56:55,738 INFO L479 AbstractCegarLoop]: Abstraction has 36 states and 39 transitions. [2020-10-13 23:56:55,738 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-13 23:56:55,739 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 39 transitions. [2020-10-13 23:56:55,739 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2020-10-13 23:56:55,740 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 23:56:55,740 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 23:56:55,740 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-13 23:56:55,740 INFO L427 AbstractCegarLoop]: === Iteration 7 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 23:56:55,740 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 23:56:55,741 INFO L82 PathProgramCache]: Analyzing trace with hash -1865463592, now seen corresponding path program 1 times [2020-10-13 23:56:55,741 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 23:56:55,741 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1831461038] [2020-10-13 23:56:55,741 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 23:56:55,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:56:55,756 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:56:55,766 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:56:55,779 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:56:56,265 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:56:57,764 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:56:57,765 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-10-13 23:56:57,765 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-13 23:56:57,765 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2013 [2020-10-13 23:56:57,765 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-13 23:56:57,766 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-13 23:56:57,766 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-13 23:56:57,766 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21 [2020-10-13 23:56:57,766 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-13 23:56:57,766 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 23:56:57,812 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 23:56:57,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:56:57,814 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:56:57,816 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:56:57,816 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 23:56:57,816 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 23:56:57,817 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 23:56:57,817 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-13 23:56:57,817 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-13 23:56:57,817 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 23:56:57,817 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 23:56:57,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 23:56:57,818 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 23:56:57,835 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 23:56:57,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:56:57,838 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:56:57,841 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:56:57,859 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:56:57,859 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 23:56:57,859 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 23:56:57,860 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-13 23:56:57,860 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-13 23:56:57,861 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-13 23:56:57,861 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 23:56:57,861 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 23:56:57,862 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 23:56:57,862 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 23:56:57,867 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-13 23:56:57,868 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1831461038] [2020-10-13 23:56:57,868 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 23:56:57,868 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-13 23:56:57,868 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1987209388] [2020-10-13 23:56:57,869 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-13 23:56:57,869 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 23:56:57,869 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-13 23:56:57,870 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2020-10-13 23:56:57,870 INFO L87 Difference]: Start difference. First operand 36 states and 39 transitions. Second operand 8 states. [2020-10-13 23:56:58,027 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 23:56:58,027 INFO L93 Difference]: Finished difference Result 73 states and 86 transitions. [2020-10-13 23:56:58,028 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-13 23:56:58,028 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 31 [2020-10-13 23:56:58,029 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 23:56:58,029 INFO L225 Difference]: With dead ends: 73 [2020-10-13 23:56:58,030 INFO L226 Difference]: Without dead ends: 61 [2020-10-13 23:56:58,030 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2020-10-13 23:56:58,031 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states. [2020-10-13 23:56:58,036 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 39. [2020-10-13 23:56:58,036 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39 states. [2020-10-13 23:56:58,037 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 42 transitions. [2020-10-13 23:56:58,037 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 42 transitions. Word has length 31 [2020-10-13 23:56:58,037 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 23:56:58,037 INFO L479 AbstractCegarLoop]: Abstraction has 39 states and 42 transitions. [2020-10-13 23:56:58,037 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-13 23:56:58,038 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 42 transitions. [2020-10-13 23:56:58,038 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2020-10-13 23:56:58,038 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 23:56:58,039 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 23:56:58,039 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-13 23:56:58,039 INFO L427 AbstractCegarLoop]: === Iteration 8 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 23:56:58,039 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 23:56:58,039 INFO L82 PathProgramCache]: Analyzing trace with hash 189683466, now seen corresponding path program 2 times [2020-10-13 23:56:58,040 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 23:56:58,040 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [928292214] [2020-10-13 23:56:58,040 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 23:56:58,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:56:58,055 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:56:58,067 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:56:58,079 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:56:58,714 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:57:00,453 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:57:00,453 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-10-13 23:57:00,453 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-13 23:57:00,454 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2402 [2020-10-13 23:57:00,454 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-13 23:57:00,454 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-13 23:57:00,454 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 23:57:00,455 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-10-13 23:57:00,455 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 23:57:00,455 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 23:57:00,477 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 23:57:00,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:57:00,479 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:57:00,480 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:57:00,481 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 23:57:00,481 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 23:57:00,481 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 23:57:00,481 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-13 23:57:00,482 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-13 23:57:00,482 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 23:57:00,482 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 23:57:00,482 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 23:57:00,483 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 23:57:00,495 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 23:57:00,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:57:00,500 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:57:00,515 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:57:00,515 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 23:57:00,515 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 23:57:00,516 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-13 23:57:00,516 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-13 23:57:00,516 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-13 23:57:00,516 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 23:57:00,517 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-13 23:57:00,517 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-13 23:57:00,517 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 23:57:00,545 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2020-10-13 23:57:00,546 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [928292214] [2020-10-13 23:57:00,546 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 23:57:00,546 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-13 23:57:00,546 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1516523075] [2020-10-13 23:57:00,547 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-13 23:57:00,547 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 23:57:00,547 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-13 23:57:00,547 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-10-13 23:57:00,548 INFO L87 Difference]: Start difference. First operand 39 states and 42 transitions. Second operand 7 states. [2020-10-13 23:57:00,684 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 23:57:00,685 INFO L93 Difference]: Finished difference Result 70 states and 76 transitions. [2020-10-13 23:57:00,685 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-13 23:57:00,685 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 34 [2020-10-13 23:57:00,686 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 23:57:00,686 INFO L225 Difference]: With dead ends: 70 [2020-10-13 23:57:00,687 INFO L226 Difference]: Without dead ends: 42 [2020-10-13 23:57:00,688 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2020-10-13 23:57:00,688 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2020-10-13 23:57:00,692 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 41. [2020-10-13 23:57:00,692 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 41 states. [2020-10-13 23:57:00,693 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 44 transitions. [2020-10-13 23:57:00,693 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 44 transitions. Word has length 34 [2020-10-13 23:57:00,693 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 23:57:00,694 INFO L479 AbstractCegarLoop]: Abstraction has 41 states and 44 transitions. [2020-10-13 23:57:00,694 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-13 23:57:00,694 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 44 transitions. [2020-10-13 23:57:00,695 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2020-10-13 23:57:00,695 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 23:57:00,695 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 23:57:00,695 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-13 23:57:00,695 INFO L427 AbstractCegarLoop]: === Iteration 9 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 23:57:00,696 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 23:57:00,696 INFO L82 PathProgramCache]: Analyzing trace with hash -833861812, now seen corresponding path program 3 times [2020-10-13 23:57:00,696 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 23:57:00,696 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [115426420] [2020-10-13 23:57:00,696 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 23:57:00,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:57:00,712 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:57:00,725 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:57:00,770 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:57:00,800 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:57:01,331 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:57:04,138 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:57:05,707 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:57:05,707 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 46 [2020-10-13 23:57:05,707 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-13 23:57:05,708 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-10-13 23:57:05,708 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-13 23:57:05,708 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-13 23:57:05,708 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-13 23:57:05,708 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 23 [2020-10-13 23:57:05,709 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-10-13 23:57:05,709 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 23:57:05,787 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 23:57:05,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:57:05,789 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:57:05,791 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:57:05,792 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 23:57:05,800 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 23:57:05,801 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 23:57:05,801 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-13 23:57:05,801 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-13 23:57:05,802 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 23:57:05,802 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 23:57:05,802 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 23:57:05,803 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 23:57:05,839 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 23:57:05,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:57:05,842 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:57:05,846 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:57:05,908 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:57:05,909 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-13 23:57:05,909 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 23:57:05,909 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 66 [2020-10-13 23:57:05,910 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-13 23:57:05,910 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-13 23:57:05,910 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 23:57:05,911 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 23:57:05,911 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 23:57:05,911 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 23:57:05,918 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-10-13 23:57:05,918 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [115426420] [2020-10-13 23:57:05,919 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 23:57:05,919 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-10-13 23:57:05,919 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [41544254] [2020-10-13 23:57:05,920 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-13 23:57:05,920 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 23:57:05,920 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-13 23:57:05,921 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2020-10-13 23:57:05,921 INFO L87 Difference]: Start difference. First operand 41 states and 44 transitions. Second operand 9 states. [2020-10-13 23:57:06,166 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 23:57:06,167 INFO L93 Difference]: Finished difference Result 83 states and 98 transitions. [2020-10-13 23:57:06,168 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-13 23:57:06,168 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 36 [2020-10-13 23:57:06,168 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 23:57:06,169 INFO L225 Difference]: With dead ends: 83 [2020-10-13 23:57:06,169 INFO L226 Difference]: Without dead ends: 71 [2020-10-13 23:57:06,170 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2020-10-13 23:57:06,171 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71 states. [2020-10-13 23:57:06,176 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71 to 44. [2020-10-13 23:57:06,176 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 44 states. [2020-10-13 23:57:06,177 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 47 transitions. [2020-10-13 23:57:06,177 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 47 transitions. Word has length 36 [2020-10-13 23:57:06,177 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 23:57:06,177 INFO L479 AbstractCegarLoop]: Abstraction has 44 states and 47 transitions. [2020-10-13 23:57:06,178 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-13 23:57:06,178 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 47 transitions. [2020-10-13 23:57:06,178 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2020-10-13 23:57:06,178 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 23:57:06,179 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 23:57:06,179 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-13 23:57:06,179 INFO L427 AbstractCegarLoop]: === Iteration 10 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 23:57:06,179 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 23:57:06,180 INFO L82 PathProgramCache]: Analyzing trace with hash 2147308566, now seen corresponding path program 4 times [2020-10-13 23:57:06,180 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 23:57:06,180 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [731304155] [2020-10-13 23:57:06,180 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 23:57:06,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:57:06,196 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:57:06,215 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:57:06,235 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:57:06,274 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:57:07,711 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:57:11,191 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:57:11,191 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 49 [2020-10-13 23:57:11,192 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-13 23:57:11,192 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5001 [2020-10-13 23:57:11,193 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-13 23:57:11,193 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-13 23:57:11,193 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-13 23:57:11,194 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 23 [2020-10-13 23:57:11,194 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-10-13 23:57:11,194 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 23:57:11,285 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 23:57:11,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:57:11,288 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:57:11,290 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:57:11,290 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 23:57:11,290 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 23:57:11,291 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 23:57:11,291 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-13 23:57:11,292 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-13 23:57:11,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 23:57:11,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 23:57:11,293 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 23:57:11,293 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 23:57:11,322 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 23:57:11,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:57:11,325 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:57:11,329 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:57:11,383 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:57:11,383 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-13 23:57:11,383 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 23:57:11,384 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 57 [2020-10-13 23:57:11,384 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-13 23:57:11,385 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-13 23:57:11,385 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 23:57:11,385 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 23:57:11,386 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 23:57:11,386 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 23:57:11,394 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 0 proven. 35 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-10-13 23:57:11,395 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [731304155] [2020-10-13 23:57:11,395 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 23:57:11,396 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-10-13 23:57:11,396 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1197155833] [2020-10-13 23:57:11,398 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-13 23:57:11,398 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 23:57:11,398 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-13 23:57:11,398 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2020-10-13 23:57:11,399 INFO L87 Difference]: Start difference. First operand 44 states and 47 transitions. Second operand 10 states. [2020-10-13 23:57:11,733 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 23:57:11,733 INFO L93 Difference]: Finished difference Result 91 states and 108 transitions. [2020-10-13 23:57:11,734 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-13 23:57:11,735 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 39 [2020-10-13 23:57:11,735 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 23:57:11,736 INFO L225 Difference]: With dead ends: 91 [2020-10-13 23:57:11,736 INFO L226 Difference]: Without dead ends: 79 [2020-10-13 23:57:11,738 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2020-10-13 23:57:11,738 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79 states. [2020-10-13 23:57:11,751 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79 to 47. [2020-10-13 23:57:11,751 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 47 states. [2020-10-13 23:57:11,754 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 50 transitions. [2020-10-13 23:57:11,754 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 50 transitions. Word has length 39 [2020-10-13 23:57:11,757 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 23:57:11,757 INFO L479 AbstractCegarLoop]: Abstraction has 47 states and 50 transitions. [2020-10-13 23:57:11,757 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-13 23:57:11,758 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 50 transitions. [2020-10-13 23:57:11,759 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2020-10-13 23:57:11,760 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 23:57:11,760 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 23:57:11,760 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-13 23:57:11,761 INFO L427 AbstractCegarLoop]: === Iteration 11 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 23:57:11,761 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 23:57:11,761 INFO L82 PathProgramCache]: Analyzing trace with hash -1434674420, now seen corresponding path program 5 times [2020-10-13 23:57:11,761 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 23:57:11,762 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [499295772] [2020-10-13 23:57:11,762 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 23:57:11,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:57:11,785 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:57:11,803 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:57:11,877 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:57:11,903 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:57:12,073 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:57:14,945 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:57:16,784 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:57:16,784 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-13 23:57:16,785 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-13 23:57:16,785 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5005 [2020-10-13 23:57:16,785 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-13 23:57:16,786 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-13 23:57:16,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-13 23:57:16,787 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-10-13 23:57:16,787 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-13 23:57:16,787 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 23:57:16,957 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 23:57:16,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:57:16,960 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:57:16,962 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:57:16,963 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 23:57:16,963 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 23:57:16,963 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 23:57:16,964 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-13 23:57:16,964 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-13 23:57:16,964 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 23:57:16,965 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 23:57:16,965 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 23:57:16,965 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 23:57:16,995 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 23:57:16,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:57:17,002 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:57:17,009 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:57:17,141 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:57:17,142 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-13 23:57:17,142 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 23:57:17,142 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 141 [2020-10-13 23:57:17,143 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-13 23:57:17,143 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-13 23:57:17,143 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-13 23:57:17,144 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 23:57:17,144 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-13 23:57:17,144 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 23:57:17,272 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 11 proven. 4 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2020-10-13 23:57:17,273 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [499295772] [2020-10-13 23:57:17,274 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 23:57:17,274 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-10-13 23:57:17,274 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [876817009] [2020-10-13 23:57:17,275 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-13 23:57:17,275 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 23:57:17,276 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-13 23:57:17,277 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2020-10-13 23:57:17,277 INFO L87 Difference]: Start difference. First operand 47 states and 50 transitions. Second operand 10 states. [2020-10-13 23:57:17,490 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 23:57:17,490 INFO L93 Difference]: Finished difference Result 47 states and 50 transitions. [2020-10-13 23:57:17,490 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-13 23:57:17,490 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 42 [2020-10-13 23:57:17,491 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 23:57:17,491 INFO L225 Difference]: With dead ends: 47 [2020-10-13 23:57:17,491 INFO L226 Difference]: Without dead ends: 0 [2020-10-13 23:57:17,492 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=43, Invalid=167, Unknown=0, NotChecked=0, Total=210 [2020-10-13 23:57:17,492 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-13 23:57:17,492 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-13 23:57:17,493 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-13 23:57:17,493 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-13 23:57:17,493 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 42 [2020-10-13 23:57:17,493 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 23:57:17,494 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-13 23:57:17,494 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-13 23:57:17,494 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-13 23:57:17,494 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-13 23:57:17,494 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-13 23:57:17,497 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-10-13 23:57:17,757 INFO L264 CegarLoopResult]: At program point initENTRY(lines 9 16) the Hoare annotation is: (and (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|) (= |old(#length)| |#length|) (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|) (= |old(#valid)| |#valid|)) [2020-10-13 23:57:17,757 INFO L268 CegarLoopResult]: For program point initEXIT(lines 9 16) no Hoare annotation was computed. [2020-10-13 23:57:17,758 INFO L268 CegarLoopResult]: For program point L12-2(lines 12 15) no Hoare annotation was computed. [2020-10-13 23:57:17,758 INFO L264 CegarLoopResult]: At program point L12-3(lines 12 15) the Hoare annotation is: (let ((.cse1 (= init_~a.base |init_#in~a.base|))) (or (let ((.cse0 (* init_~i~0 4))) (and (= |init_#in~a.offset| (+ init_~a.offset .cse0)) (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|) (<= (+ |init_#in~size| init_~i~0) init_~size) (or (= 100000 init_~size) (= |init_#in~size| init_~size)) (= |old(#length)| |#length|) .cse1 (= .cse0 0) (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|) (= |old(#valid)| |#valid|))) (and .cse1 (not (= (select (select |#memory_$Pointer$.base| init_~a.base) |init_#in~a.offset|) 0))))) [2020-10-13 23:57:17,758 INFO L268 CegarLoopResult]: For program point L12-4(lines 9 16) no Hoare annotation was computed. [2020-10-13 23:57:17,759 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-10-13 23:57:17,759 INFO L264 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= |old(#NULL.base)| |#NULL.base|) (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#valid)| |#valid|)) [2020-10-13 23:57:17,759 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-10-13 23:57:17,759 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-10-13 23:57:17,760 INFO L271 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true [2020-10-13 23:57:17,760 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-10-13 23:57:17,760 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-10-13 23:57:17,761 INFO L268 CegarLoopResult]: For program point L33(lines 33 34) no Hoare annotation was computed. [2020-10-13 23:57:17,761 INFO L268 CegarLoopResult]: For program point L31-2(lines 31 35) no Hoare annotation was computed. [2020-10-13 23:57:17,761 INFO L264 CegarLoopResult]: At program point L31-3(lines 31 35) the Hoare annotation is: (<= 1 main_~flag~0) [2020-10-13 23:57:17,761 INFO L268 CegarLoopResult]: For program point L31-4(lines 31 35) no Hoare annotation was computed. [2020-10-13 23:57:17,762 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 17 37) no Hoare annotation was computed. [2020-10-13 23:57:17,762 INFO L271 CegarLoopResult]: At program point L23(line 23) the Hoare annotation is: true [2020-10-13 23:57:17,762 INFO L268 CegarLoopResult]: For program point L23-1(line 23) no Hoare annotation was computed. [2020-10-13 23:57:17,762 INFO L268 CegarLoopResult]: For program point mainFINAL(lines 17 37) no Hoare annotation was computed. [2020-10-13 23:57:17,762 INFO L264 CegarLoopResult]: At program point L34(line 34) the Hoare annotation is: false [2020-10-13 23:57:17,763 INFO L268 CegarLoopResult]: For program point L34-1(line 34) no Hoare annotation was computed. [2020-10-13 23:57:17,763 INFO L264 CegarLoopResult]: At program point mainENTRY(lines 17 37) the Hoare annotation is: (and (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|) (= |old(#length)| |#length|) (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|) (= |old(#valid)| |#valid|)) [2020-10-13 23:57:17,763 INFO L268 CegarLoopResult]: For program point L26(lines 26 29) no Hoare annotation was computed. [2020-10-13 23:57:17,763 INFO L268 CegarLoopResult]: For program point L24-2(lines 24 30) no Hoare annotation was computed. [2020-10-13 23:57:17,764 INFO L264 CegarLoopResult]: At program point L24-3(lines 24 30) the Hoare annotation is: (or (<= 1 main_~flag~0) (let ((.cse1 (select |#memory_$Pointer$.base| |main_~#a~0.base|))) (and (let ((.cse0 (select .cse1 |main_~#a~0.offset|))) (or (<= (+ .cse0 1) 0) (<= 1 .cse0))) (<= main_~i~1 0) (let ((.cse2 (select .cse1 (+ (* main_~i~1 4) |main_~#a~0.offset|)))) (or (<= 1 .cse2) (<= (+ .cse2 1) 0)))))) [2020-10-13 23:57:17,764 INFO L268 CegarLoopResult]: For program point L24-4(lines 24 30) no Hoare annotation was computed. [2020-10-13 23:57:17,764 INFO L268 CegarLoopResult]: For program point L4-3(line 4) no Hoare annotation was computed. [2020-10-13 23:57:17,764 INFO L271 CegarLoopResult]: At program point __VERIFIER_assertENTRY(line 4) the Hoare annotation is: true [2020-10-13 23:57:17,765 INFO L268 CegarLoopResult]: For program point __VERIFIER_assertEXIT(line 4) no Hoare annotation was computed. [2020-10-13 23:57:17,765 INFO L268 CegarLoopResult]: For program point L4(line 4) no Hoare annotation was computed. [2020-10-13 23:57:17,765 INFO L268 CegarLoopResult]: For program point L4-1(line 4) no Hoare annotation was computed. [2020-10-13 23:57:17,765 INFO L268 CegarLoopResult]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 4) no Hoare annotation was computed. [2020-10-13 23:57:17,792 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-10-13 23:57:17,794 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-10-13 23:57:17,795 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-10-13 23:57:17,796 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-10-13 23:57:17,796 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-10-13 23:57:17,797 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-10-13 23:57:17,797 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-10-13 23:57:17,797 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-10-13 23:57:17,798 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-10-13 23:57:17,799 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-10-13 23:57:17,799 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-10-13 23:57:17,800 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-10-13 23:57:17,800 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-10-13 23:57:17,800 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-10-13 23:57:17,801 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-10-13 23:57:17,801 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-10-13 23:57:17,805 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2020-10-13 23:57:17,806 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2020-10-13 23:57:17,806 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-10-13 23:57:17,806 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-10-13 23:57:17,807 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-10-13 23:57:17,808 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-10-13 23:57:17,808 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-10-13 23:57:17,809 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-10-13 23:57:17,809 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-10-13 23:57:17,809 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-10-13 23:57:17,809 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-10-13 23:57:17,809 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-10-13 23:57:17,812 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2020-10-13 23:57:17,812 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2020-10-13 23:57:17,813 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-10-13 23:57:17,813 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-10-13 23:57:17,814 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-10-13 23:57:17,815 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-10-13 23:57:17,815 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-10-13 23:57:17,816 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-10-13 23:57:17,816 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-10-13 23:57:17,816 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-10-13 23:57:17,817 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-10-13 23:57:17,817 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-10-13 23:57:17,821 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.10 11:57:17 BoogieIcfgContainer [2020-10-13 23:57:17,821 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-13 23:57:17,825 INFO L168 Benchmark]: Toolchain (without parser) took 27269.30 ms. Allocated memory was 142.1 MB in the beginning and 502.8 MB in the end (delta: 360.7 MB). Free memory was 105.7 MB in the beginning and 259.5 MB in the end (delta: -153.8 MB). Peak memory consumption was 206.9 MB. Max. memory is 7.1 GB. [2020-10-13 23:57:17,827 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 142.1 MB. Free memory was 123.6 MB in the beginning and 123.4 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. [2020-10-13 23:57:17,834 INFO L168 Benchmark]: CACSL2BoogieTranslator took 262.43 ms. Allocated memory is still 142.1 MB. Free memory was 105.5 MB in the beginning and 95.2 MB in the end (delta: 10.3 MB). Peak memory consumption was 10.3 MB. Max. memory is 7.1 GB. [2020-10-13 23:57:17,835 INFO L168 Benchmark]: Boogie Preprocessor took 117.09 ms. Allocated memory was 142.1 MB in the beginning and 203.9 MB in the end (delta: 61.9 MB). Free memory was 95.2 MB in the beginning and 181.3 MB in the end (delta: -86.2 MB). Peak memory consumption was 12.4 MB. Max. memory is 7.1 GB. [2020-10-13 23:57:17,836 INFO L168 Benchmark]: RCFGBuilder took 326.07 ms. Allocated memory is still 203.9 MB. Free memory was 181.3 MB in the beginning and 164.3 MB in the end (delta: 17.0 MB). Peak memory consumption was 17.0 MB. Max. memory is 7.1 GB. [2020-10-13 23:57:17,839 INFO L168 Benchmark]: TraceAbstraction took 26558.29 ms. Allocated memory was 203.9 MB in the beginning and 502.8 MB in the end (delta: 298.8 MB). Free memory was 164.3 MB in the beginning and 259.5 MB in the end (delta: -95.2 MB). Peak memory consumption was 203.6 MB. Max. memory is 7.1 GB. [2020-10-13 23:57:17,852 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 142.1 MB. Free memory was 123.6 MB in the beginning and 123.4 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 262.43 ms. Allocated memory is still 142.1 MB. Free memory was 105.5 MB in the beginning and 95.2 MB in the end (delta: 10.3 MB). Peak memory consumption was 10.3 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 117.09 ms. Allocated memory was 142.1 MB in the beginning and 203.9 MB in the end (delta: 61.9 MB). Free memory was 95.2 MB in the beginning and 181.3 MB in the end (delta: -86.2 MB). Peak memory consumption was 12.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 326.07 ms. Allocated memory is still 203.9 MB. Free memory was 181.3 MB in the beginning and 164.3 MB in the end (delta: 17.0 MB). Peak memory consumption was 17.0 MB. Max. memory is 7.1 GB. * TraceAbstraction took 26558.29 ms. Allocated memory was 203.9 MB in the beginning and 502.8 MB in the end (delta: 298.8 MB). Free memory was 164.3 MB in the beginning and 259.5 MB in the end (delta: -95.2 MB). Peak memory consumption was 203.6 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_$Pointer$ - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_$Pointer$ - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_$Pointer$ - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_$Pointer$ - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_$Pointer$ - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_$Pointer$ - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_$Pointer$ - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_$Pointer$ - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_$Pointer$ - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_$Pointer$ - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_$Pointer$ - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_$Pointer$ - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_$Pointer$ - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_$Pointer$ - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_$Pointer$ - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_$Pointer$ - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_$Pointer$ - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_$Pointer$ * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 4]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 31]: Loop Invariant Derived loop invariant: 1 <= flag - InvariantResult [Line: 24]: Loop Invariant [2020-10-13 23:57:17,877 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-10-13 23:57:17,877 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-10-13 23:57:17,878 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-10-13 23:57:17,878 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-10-13 23:57:17,878 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-10-13 23:57:17,879 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-10-13 23:57:17,879 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-10-13 23:57:17,883 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-10-13 23:57:17,884 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-10-13 23:57:17,884 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-10-13 23:57:17,885 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-10-13 23:57:17,885 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-10-13 23:57:17,886 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-10-13 23:57:17,891 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-10-13 23:57:17,891 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-10-13 23:57:17,892 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ Derived loop invariant: 1 <= flag || (((#memory_$Pointer$[a][a] + 1 <= 0 || 1 <= #memory_$Pointer$[a][a]) && i <= 0) && (1 <= #memory_$Pointer$[a][i * 4 + a] || #memory_$Pointer$[a][i * 4 + a] + 1 <= 0)) - InvariantResult [Line: 12]: Loop Invariant [2020-10-13 23:57:17,893 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2020-10-13 23:57:17,893 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2020-10-13 23:57:17,893 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-10-13 23:57:17,893 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-10-13 23:57:17,894 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-10-13 23:57:17,894 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-10-13 23:57:17,894 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-10-13 23:57:17,894 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-10-13 23:57:17,894 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-10-13 23:57:17,895 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-10-13 23:57:17,895 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-10-13 23:57:17,895 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-10-13 23:57:17,895 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2020-10-13 23:57:17,896 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2020-10-13 23:57:17,900 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-10-13 23:57:17,900 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-10-13 23:57:17,900 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-10-13 23:57:17,901 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-10-13 23:57:17,901 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-10-13 23:57:17,902 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-10-13 23:57:17,902 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-10-13 23:57:17,902 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-10-13 23:57:17,903 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-10-13 23:57:17,903 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ Derived loop invariant: ((((((((a == a + i * 4 && #memory_$Pointer$ == \old(#memory_$Pointer$)) && \old(size) + i <= size) && (100000 == size || \old(size) == size)) && \old(unknown-#length-unknown) == unknown-#length-unknown) && a == a) && i * 4 == 0) && #memory_$Pointer$ == \old(#memory_$Pointer$)) && \old(\valid) == \valid) || (a == a && !(#memory_$Pointer$[a][a] == 0)) - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 33 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 26.1s, OverallIterations: 11, TraceHistogramMax: 6, AutomataDifference: 2.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.2s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 286 SDtfs, 305 SDslu, 546 SDs, 0 SdLazy, 841 SolverSat, 150 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 126 GetRequests, 52 SyntacticMatches, 0 SemanticMatches, 74 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 1.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=47occurred in iteration=10, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 11 MinimizatonAttempts, 134 StatesRemovedByMinimization, 10 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 11 LocationsWithAnnotation, 21 PreInvPairs, 26 NumberOfFragments, 147 HoareAnnotationTreeSize, 21 FomulaSimplifications, 19 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 11 FomulaSimplificationsInter, 35 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 23.5s InterpolantComputationTime, 323 NumberOfCodeBlocks, 323 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 312 ConstructedInterpolants, 0 QuantifiedInterpolants, 25315 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 11 InterpolantComputations, 4 PerfectInterpolantSequences, 95/175 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...