/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SingleStatement --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=NARROWEST --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/loops/veris.c_OpenSER_cases1_stripFullBoth_arr.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 02:19:20,061 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 02:19:20,066 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 02:19:20,110 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 02:19:20,111 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 02:19:20,118 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 02:19:20,121 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 02:19:20,124 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 02:19:20,127 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 02:19:20,131 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 02:19:20,132 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 02:19:20,133 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 02:19:20,133 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 02:19:20,136 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 02:19:20,139 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 02:19:20,140 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 02:19:20,142 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 02:19:20,143 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 02:19:20,145 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 02:19:20,153 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 02:19:20,156 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 02:19:20,157 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 02:19:20,158 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 02:19:20,159 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 02:19:20,177 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 02:19:20,177 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 02:19:20,178 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 02:19:20,179 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 02:19:20,179 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 02:19:20,180 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 02:19:20,180 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 02:19:20,181 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 02:19:20,182 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 02:19:20,186 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 02:19:20,188 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 02:19:20,188 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 02:19:20,189 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 02:19:20,189 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 02:19:20,189 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 02:19:20,190 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 02:19:20,191 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 02:19:20,193 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-09-25 02:19:20,226 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 02:19:20,227 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 02:19:20,228 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 02:19:20,228 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 02:19:20,228 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 02:19:20,229 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 02:19:20,229 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 02:19:20,229 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 02:19:20,229 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 02:19:20,229 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 02:19:20,230 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 02:19:20,230 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 02:19:20,230 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 02:19:20,230 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 02:19:20,230 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 02:19:20,231 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 02:19:20,231 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 02:19:20,231 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 02:19:20,231 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 02:19:20,231 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 02:19:20,232 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 02:19:20,232 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 02:19:20,232 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 02:19:20,232 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 02:19:20,233 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 02:19:20,233 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 02:19:20,233 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 02:19:20,233 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 02:19:20,233 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 02:19:20,233 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SingleStatement Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=NARROWEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=NARROWEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=NARROWEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=NARROWEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=NARROWEST;log-additional-information=true; [2020-09-25 02:19:20,748 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 02:19:20,775 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 02:19:20,780 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 02:19:20,782 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 02:19:20,782 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 02:19:20,784 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loops/veris.c_OpenSER_cases1_stripFullBoth_arr.i [2020-09-25 02:19:20,874 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/8e25737e3/dd9ca21948c1471ba5c32132ac9deeb2/FLAG8e0de2f24 [2020-09-25 02:19:21,468 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 02:19:21,469 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/loops/veris.c_OpenSER_cases1_stripFullBoth_arr.i [2020-09-25 02:19:21,478 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/8e25737e3/dd9ca21948c1471ba5c32132ac9deeb2/FLAG8e0de2f24 [2020-09-25 02:19:21,772 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/8e25737e3/dd9ca21948c1471ba5c32132ac9deeb2 [2020-09-25 02:19:21,786 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 02:19:21,792 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 02:19:21,794 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 02:19:21,794 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 02:19:21,798 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 02:19:21,799 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 02:19:21" (1/1) ... [2020-09-25 02:19:21,804 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@664bf5ef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:19:21, skipping insertion in model container [2020-09-25 02:19:21,804 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 02:19:21" (1/1) ... [2020-09-25 02:19:21,813 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 02:19:21,843 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 02:19:22,128 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 02:19:22,142 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 02:19:22,275 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 02:19:22,301 INFO L208 MainTranslator]: Completed translation [2020-09-25 02:19:22,302 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:19:22 WrapperNode [2020-09-25 02:19:22,302 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 02:19:22,303 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 02:19:22,303 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 02:19:22,303 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 02:19:22,318 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:19:22" (1/1) ... [2020-09-25 02:19:22,318 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:19:22" (1/1) ... [2020-09-25 02:19:22,331 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:19:22" (1/1) ... [2020-09-25 02:19:22,331 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:19:22" (1/1) ... [2020-09-25 02:19:22,345 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:19:22" (1/1) ... [2020-09-25 02:19:22,353 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:19:22" (1/1) ... [2020-09-25 02:19:22,355 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:19:22" (1/1) ... [2020-09-25 02:19:22,360 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 02:19:22,361 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 02:19:22,361 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 02:19:22,361 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 02:19:22,362 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:19:22" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 02:19:22,443 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 02:19:22,444 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 02:19:22,445 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-09-25 02:19:22,445 INFO L138 BoogieDeclarations]: Found implementation of procedure r_strncpy [2020-09-25 02:19:22,445 INFO L138 BoogieDeclarations]: Found implementation of procedure parse_expression_list [2020-09-25 02:19:22,445 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 02:19:22,445 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 02:19:22,446 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2020-09-25 02:19:22,447 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-09-25 02:19:22,447 INFO L130 BoogieDeclarations]: Found specification of procedure strchr [2020-09-25 02:19:22,447 INFO L130 BoogieDeclarations]: Found specification of procedure strrchr [2020-09-25 02:19:22,447 INFO L130 BoogieDeclarations]: Found specification of procedure strstr [2020-09-25 02:19:22,448 INFO L130 BoogieDeclarations]: Found specification of procedure strncpy [2020-09-25 02:19:22,448 INFO L130 BoogieDeclarations]: Found specification of procedure strncpy_ptr [2020-09-25 02:19:22,448 INFO L130 BoogieDeclarations]: Found specification of procedure strcpy [2020-09-25 02:19:22,449 INFO L130 BoogieDeclarations]: Found specification of procedure strlen [2020-09-25 02:19:22,449 INFO L130 BoogieDeclarations]: Found specification of procedure strncmp [2020-09-25 02:19:22,449 INFO L130 BoogieDeclarations]: Found specification of procedure strcmp [2020-09-25 02:19:22,449 INFO L130 BoogieDeclarations]: Found specification of procedure strcat [2020-09-25 02:19:22,450 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2020-09-25 02:19:22,451 INFO L130 BoogieDeclarations]: Found specification of procedure isascii [2020-09-25 02:19:22,451 INFO L130 BoogieDeclarations]: Found specification of procedure isspace [2020-09-25 02:19:22,452 INFO L130 BoogieDeclarations]: Found specification of procedure getc [2020-09-25 02:19:22,452 INFO L130 BoogieDeclarations]: Found specification of procedure strrand [2020-09-25 02:19:22,453 INFO L130 BoogieDeclarations]: Found specification of procedure istrrand [2020-09-25 02:19:22,454 INFO L130 BoogieDeclarations]: Found specification of procedure istrchr [2020-09-25 02:19:22,454 INFO L130 BoogieDeclarations]: Found specification of procedure istrrchr [2020-09-25 02:19:22,454 INFO L130 BoogieDeclarations]: Found specification of procedure istrncmp [2020-09-25 02:19:22,455 INFO L130 BoogieDeclarations]: Found specification of procedure istrstr [2020-09-25 02:19:22,455 INFO L130 BoogieDeclarations]: Found specification of procedure r_strncpy [2020-09-25 02:19:22,455 INFO L130 BoogieDeclarations]: Found specification of procedure r_strcpy [2020-09-25 02:19:22,455 INFO L130 BoogieDeclarations]: Found specification of procedure r_strcat [2020-09-25 02:19:22,455 INFO L130 BoogieDeclarations]: Found specification of procedure r_strncat [2020-09-25 02:19:22,455 INFO L130 BoogieDeclarations]: Found specification of procedure r_memcpy [2020-09-25 02:19:22,456 INFO L130 BoogieDeclarations]: Found specification of procedure parse_expression_list [2020-09-25 02:19:22,456 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-25 02:19:22,456 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-25 02:19:22,456 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-25 02:19:22,456 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-25 02:19:22,456 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 02:19:22,457 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 02:19:22,457 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 02:19:22,938 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 02:19:22,939 INFO L295 CfgBuilder]: Removed 4 assume(true) statements. [2020-09-25 02:19:22,946 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 02:19:22 BoogieIcfgContainer [2020-09-25 02:19:22,946 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 02:19:22,948 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 02:19:22,948 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 02:19:22,952 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 02:19:22,952 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 02:19:21" (1/3) ... [2020-09-25 02:19:22,953 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3216c4d5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 02:19:22, skipping insertion in model container [2020-09-25 02:19:22,953 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:19:22" (2/3) ... [2020-09-25 02:19:22,954 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3216c4d5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 02:19:22, skipping insertion in model container [2020-09-25 02:19:22,954 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 02:19:22" (3/3) ... [2020-09-25 02:19:22,957 INFO L109 eAbstractionObserver]: Analyzing ICFG veris.c_OpenSER_cases1_stripFullBoth_arr.i [2020-09-25 02:19:22,969 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 02:19:22,981 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 02:19:23,004 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 02:19:23,035 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 02:19:23,035 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 02:19:23,035 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 02:19:23,035 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 02:19:23,036 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 02:19:23,036 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 02:19:23,036 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 02:19:23,036 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 02:19:23,061 INFO L276 IsEmpty]: Start isEmpty. Operand 135 states. [2020-09-25 02:19:23,072 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2020-09-25 02:19:23,072 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 02:19:23,073 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 02:19:23,074 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 02:19:23,080 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 02:19:23,080 INFO L82 PathProgramCache]: Analyzing trace with hash 593727157, now seen corresponding path program 1 times [2020-09-25 02:19:23,091 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 02:19:23,091 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [893244542] [2020-09-25 02:19:23,092 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 02:19:23,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:19:23,311 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:19:23,378 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:19:23,439 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:19:23,517 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:19:24,185 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:19:24,252 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:19:24,304 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:19:24,969 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:19:26,118 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:19:26,119 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-09-25 02:19:26,119 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-09-25 02:19:26,119 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2847 [2020-09-25 02:19:26,122 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:19:26,123 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:19:26,123 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 33 [2020-09-25 02:19:26,123 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:19:26,123 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-09-25 02:19:26,198 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 02:19:26,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:19:26,203 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:19:26,211 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:19:26,211 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 02:19:26,211 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:19:26,212 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 02:19:26,212 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:19:26,212 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:19:26,213 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:19:26,213 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:19:26,213 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:19:26,219 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-09-25 02:19:26,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:19:26,224 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:19:26,231 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:19:26,231 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-25 02:19:26,232 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:19:26,232 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 02:19:26,232 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:19:26,232 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:19:26,233 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 02:19:26,233 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:19:26,233 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:19:26,244 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 02:19:26,245 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [893244542] [2020-09-25 02:19:26,248 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 02:19:26,248 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 02:19:26,250 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2121082637] [2020-09-25 02:19:26,257 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 02:19:26,257 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 02:19:26,276 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 02:19:26,278 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 02:19:26,281 INFO L87 Difference]: Start difference. First operand 135 states. Second operand 3 states. [2020-09-25 02:19:26,592 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 02:19:26,592 INFO L93 Difference]: Finished difference Result 254 states and 290 transitions. [2020-09-25 02:19:26,593 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 02:19:26,595 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 51 [2020-09-25 02:19:26,596 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 02:19:26,610 INFO L225 Difference]: With dead ends: 254 [2020-09-25 02:19:26,611 INFO L226 Difference]: Without dead ends: 111 [2020-09-25 02:19:26,617 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 02:19:26,641 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 111 states. [2020-09-25 02:19:26,673 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 111 to 111. [2020-09-25 02:19:26,675 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 111 states. [2020-09-25 02:19:26,676 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111 states to 111 states and 121 transitions. [2020-09-25 02:19:26,679 INFO L78 Accepts]: Start accepts. Automaton has 111 states and 121 transitions. Word has length 51 [2020-09-25 02:19:26,679 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 02:19:26,679 INFO L479 AbstractCegarLoop]: Abstraction has 111 states and 121 transitions. [2020-09-25 02:19:26,679 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 02:19:26,680 INFO L276 IsEmpty]: Start isEmpty. Operand 111 states and 121 transitions. [2020-09-25 02:19:26,682 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2020-09-25 02:19:26,683 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 02:19:26,683 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 02:19:26,683 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 02:19:26,684 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 02:19:26,684 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 02:19:26,684 INFO L82 PathProgramCache]: Analyzing trace with hash 1128985001, now seen corresponding path program 1 times [2020-09-25 02:19:26,684 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 02:19:26,685 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1604178183] [2020-09-25 02:19:26,685 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 02:19:26,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:19:26,704 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:19:26,728 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:19:26,751 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:19:26,830 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:19:28,109 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:19:28,200 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:19:28,233 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:19:28,263 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:19:28,301 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:19:29,555 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:19:31,702 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:19:31,703 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 76 [2020-09-25 02:19:31,703 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 10 [2020-09-25 02:19:31,703 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5005 [2020-09-25 02:19:31,703 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:19:31,704 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:19:31,704 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-09-25 02:19:31,704 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-25 02:19:31,704 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:19:31,733 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 02:19:31,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:19:31,737 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:19:31,741 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:19:31,741 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 02:19:31,741 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:19:31,742 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 02:19:31,742 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:19:31,742 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:19:31,742 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:19:31,743 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:19:31,743 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:19:31,745 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-09-25 02:19:31,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:19:31,749 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:19:31,755 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:19:31,755 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-25 02:19:31,756 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:19:31,756 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 02:19:31,756 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:19:31,756 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:19:31,757 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 02:19:31,757 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:19:31,757 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:19:31,764 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 02:19:31,765 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1604178183] [2020-09-25 02:19:31,765 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 02:19:31,765 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-25 02:19:31,765 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [422974583] [2020-09-25 02:19:31,768 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-25 02:19:31,768 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 02:19:31,768 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-25 02:19:31,769 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-25 02:19:31,769 INFO L87 Difference]: Start difference. First operand 111 states and 121 transitions. Second operand 4 states. [2020-09-25 02:19:32,000 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 02:19:32,000 INFO L93 Difference]: Finished difference Result 212 states and 232 transitions. [2020-09-25 02:19:32,001 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-09-25 02:19:32,001 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 63 [2020-09-25 02:19:32,001 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 02:19:32,003 INFO L225 Difference]: With dead ends: 212 [2020-09-25 02:19:32,003 INFO L226 Difference]: Without dead ends: 117 [2020-09-25 02:19:32,005 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-25 02:19:32,006 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 117 states. [2020-09-25 02:19:32,016 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 117 to 112. [2020-09-25 02:19:32,016 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 112 states. [2020-09-25 02:19:32,017 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112 states to 112 states and 122 transitions. [2020-09-25 02:19:32,017 INFO L78 Accepts]: Start accepts. Automaton has 112 states and 122 transitions. Word has length 63 [2020-09-25 02:19:32,017 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 02:19:32,018 INFO L479 AbstractCegarLoop]: Abstraction has 112 states and 122 transitions. [2020-09-25 02:19:32,018 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-25 02:19:32,018 INFO L276 IsEmpty]: Start isEmpty. Operand 112 states and 122 transitions. [2020-09-25 02:19:32,019 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2020-09-25 02:19:32,020 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 02:19:32,020 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 02:19:32,020 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 02:19:32,020 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 02:19:32,021 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 02:19:32,021 INFO L82 PathProgramCache]: Analyzing trace with hash 1210839627, now seen corresponding path program 1 times [2020-09-25 02:19:32,021 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 02:19:32,022 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2028222785] [2020-09-25 02:19:32,022 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 02:19:32,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:19:32,044 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:19:32,068 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:19:32,092 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:19:32,161 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:19:34,213 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:19:34,241 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:19:34,284 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:19:34,379 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:19:34,468 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:19:36,299 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:19:37,035 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:19:37,036 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 83 [2020-09-25 02:19:37,036 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 10 [2020-09-25 02:19:37,036 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-09-25 02:19:37,037 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:19:37,037 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:19:37,038 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 42 [2020-09-25 02:19:37,038 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-25 02:19:37,039 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:19:37,101 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 02:19:37,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:19:37,105 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:19:37,110 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:19:37,110 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 02:19:37,111 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:19:37,111 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 02:19:37,112 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:19:37,112 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:19:37,112 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:19:37,113 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:19:37,113 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:19:37,117 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2020-09-25 02:19:37,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:19:37,126 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:19:37,143 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:19:37,144 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-25 02:19:37,144 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:19:37,144 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-09-25 02:19:37,144 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:19:37,145 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:19:37,145 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 02:19:37,145 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:19:37,145 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:19:37,154 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-09-25 02:19:37,155 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2028222785] [2020-09-25 02:19:37,155 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 02:19:37,155 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-25 02:19:37,156 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [596740136] [2020-09-25 02:19:37,156 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-25 02:19:37,156 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 02:19:37,157 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-25 02:19:37,157 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-25 02:19:37,157 INFO L87 Difference]: Start difference. First operand 112 states and 122 transitions. Second operand 4 states. [2020-09-25 02:19:37,477 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 02:19:37,477 INFO L93 Difference]: Finished difference Result 200 states and 220 transitions. [2020-09-25 02:19:37,478 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-09-25 02:19:37,478 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 70 [2020-09-25 02:19:37,479 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 02:19:37,480 INFO L225 Difference]: With dead ends: 200 [2020-09-25 02:19:37,482 INFO L226 Difference]: Without dead ends: 113 [2020-09-25 02:19:37,483 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-25 02:19:37,487 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 113 states. [2020-09-25 02:19:37,505 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 113 to 113. [2020-09-25 02:19:37,508 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 113 states. [2020-09-25 02:19:37,510 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113 states to 113 states and 123 transitions. [2020-09-25 02:19:37,510 INFO L78 Accepts]: Start accepts. Automaton has 113 states and 123 transitions. Word has length 70 [2020-09-25 02:19:37,510 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 02:19:37,511 INFO L479 AbstractCegarLoop]: Abstraction has 113 states and 123 transitions. [2020-09-25 02:19:37,511 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-25 02:19:37,511 INFO L276 IsEmpty]: Start isEmpty. Operand 113 states and 123 transitions. [2020-09-25 02:19:37,513 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2020-09-25 02:19:37,513 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 02:19:37,517 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 02:19:37,517 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 02:19:37,517 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 02:19:37,518 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 02:19:37,518 INFO L82 PathProgramCache]: Analyzing trace with hash 653997614, now seen corresponding path program 1 times [2020-09-25 02:19:37,518 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 02:19:37,519 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1508572596] [2020-09-25 02:19:37,520 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 02:19:37,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:19:37,548 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:19:37,573 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:19:38,006 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:19:38,136 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:19:38,166 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:19:38,206 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:19:38,402 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:19:39,494 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:19:42,541 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:19:42,542 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 02:19:42,542 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-09-25 02:19:42,542 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5002 [2020-09-25 02:19:42,543 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:19:42,543 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 02:19:42,543 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-09-25 02:19:42,543 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 02:19:42,544 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:19:42,594 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 02:19:42,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:19:42,597 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:19:42,603 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:19:42,604 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 02:19:42,604 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:19:42,604 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 02:19:42,604 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:19:42,605 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:19:42,605 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:19:42,605 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:19:42,605 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:19:42,608 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2020-09-25 02:19:42,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:19:42,614 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:19:42,619 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:19:42,620 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-25 02:19:42,620 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:19:42,620 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 02:19:42,620 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:19:42,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:19:42,621 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 02:19:42,621 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:19:42,621 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:19:42,632 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 02:19:42,634 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1508572596] [2020-09-25 02:19:42,634 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 02:19:42,634 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-09-25 02:19:42,635 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1243028817] [2020-09-25 02:19:42,636 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-25 02:19:42,637 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 02:19:42,637 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-25 02:19:42,638 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-09-25 02:19:42,639 INFO L87 Difference]: Start difference. First operand 113 states and 123 transitions. Second operand 6 states. [2020-09-25 02:19:42,927 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 02:19:42,927 INFO L93 Difference]: Finished difference Result 221 states and 241 transitions. [2020-09-25 02:19:42,928 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-25 02:19:42,928 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 72 [2020-09-25 02:19:42,928 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 02:19:42,929 INFO L225 Difference]: With dead ends: 221 [2020-09-25 02:19:42,932 INFO L226 Difference]: Without dead ends: 125 [2020-09-25 02:19:42,933 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2020-09-25 02:19:42,934 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 125 states. [2020-09-25 02:19:42,947 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 125 to 120. [2020-09-25 02:19:42,947 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 120 states. [2020-09-25 02:19:42,948 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120 states to 120 states and 130 transitions. [2020-09-25 02:19:42,948 INFO L78 Accepts]: Start accepts. Automaton has 120 states and 130 transitions. Word has length 72 [2020-09-25 02:19:42,949 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 02:19:42,950 INFO L479 AbstractCegarLoop]: Abstraction has 120 states and 130 transitions. [2020-09-25 02:19:42,951 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-25 02:19:42,953 INFO L276 IsEmpty]: Start isEmpty. Operand 120 states and 130 transitions. [2020-09-25 02:19:42,954 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2020-09-25 02:19:42,954 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 02:19:42,955 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 02:19:42,955 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 02:19:42,955 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 02:19:42,955 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 02:19:42,956 INFO L82 PathProgramCache]: Analyzing trace with hash -1514943540, now seen corresponding path program 2 times [2020-09-25 02:19:42,960 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 02:19:42,961 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [907483829] [2020-09-25 02:19:42,961 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 02:19:42,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:19:42,982 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:19:43,010 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:19:43,641 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:19:43,680 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:19:43,729 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:19:43,818 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:19:43,966 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:19:45,730 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:19:47,974 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:19:47,975 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 92 [2020-09-25 02:19:47,975 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-09-25 02:19:47,975 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-09-25 02:19:47,975 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:19:47,976 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 02:19:47,976 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-09-25 02:19:47,976 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-09-25 02:19:47,976 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:19:48,052 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 02:19:48,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:19:48,055 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:19:48,060 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:19:48,060 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 02:19:48,060 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:19:48,060 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 02:19:48,061 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:19:48,061 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:19:48,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:19:48,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:19:48,062 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:19:48,065 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2020-09-25 02:19:48,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:19:48,069 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:19:48,071 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:19:48,072 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-25 02:19:48,072 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:19:48,072 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 02:19:48,072 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:19:48,073 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:19:48,073 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 02:19:48,073 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:19:48,073 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:19:48,085 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 02:19:48,086 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [907483829] [2020-09-25 02:19:48,086 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 02:19:48,087 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-09-25 02:19:48,087 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1683036790] [2020-09-25 02:19:48,088 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-25 02:19:48,088 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 02:19:48,089 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-25 02:19:48,089 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-09-25 02:19:48,089 INFO L87 Difference]: Start difference. First operand 120 states and 130 transitions. Second operand 8 states. [2020-09-25 02:19:48,388 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 02:19:48,388 INFO L93 Difference]: Finished difference Result 228 states and 248 transitions. [2020-09-25 02:19:48,389 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-09-25 02:19:48,389 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 79 [2020-09-25 02:19:48,389 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 02:19:48,390 INFO L225 Difference]: With dead ends: 228 [2020-09-25 02:19:48,391 INFO L226 Difference]: Without dead ends: 132 [2020-09-25 02:19:48,394 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=45, Invalid=87, Unknown=0, NotChecked=0, Total=132 [2020-09-25 02:19:48,396 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 132 states. [2020-09-25 02:19:48,405 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 132 to 127. [2020-09-25 02:19:48,406 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 127 states. [2020-09-25 02:19:48,411 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 127 states to 127 states and 137 transitions. [2020-09-25 02:19:48,411 INFO L78 Accepts]: Start accepts. Automaton has 127 states and 137 transitions. Word has length 79 [2020-09-25 02:19:48,411 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 02:19:48,411 INFO L479 AbstractCegarLoop]: Abstraction has 127 states and 137 transitions. [2020-09-25 02:19:48,412 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-25 02:19:48,412 INFO L276 IsEmpty]: Start isEmpty. Operand 127 states and 137 transitions. [2020-09-25 02:19:48,413 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2020-09-25 02:19:48,414 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 02:19:48,415 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 02:19:48,416 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-25 02:19:48,416 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 02:19:48,416 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 02:19:48,417 INFO L82 PathProgramCache]: Analyzing trace with hash -736933778, now seen corresponding path program 3 times [2020-09-25 02:19:48,417 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 02:19:48,418 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [141761956] [2020-09-25 02:19:48,418 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 02:19:48,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:19:48,446 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:19:48,485 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:19:49,363 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:19:49,410 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:19:49,440 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:19:49,553 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:19:49,812 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:19:51,830 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:19:53,435 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:19:53,436 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 99 [2020-09-25 02:19:53,436 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-09-25 02:19:53,436 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5002 [2020-09-25 02:19:53,437 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:19:53,437 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 02:19:53,437 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 80 [2020-09-25 02:19:53,437 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-09-25 02:19:53,437 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:19:53,486 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 02:19:53,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:19:53,489 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:19:53,491 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:19:53,492 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 02:19:53,492 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:19:53,492 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 02:19:53,492 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:19:53,492 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:19:53,493 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:19:53,493 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:19:53,493 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:19:53,495 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2020-09-25 02:19:53,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:19:53,500 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:19:53,511 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:19:53,511 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-25 02:19:53,511 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:19:53,511 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-25 02:19:53,512 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:19:53,512 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:19:53,512 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:19:53,512 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-09-25 02:19:53,512 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:19:53,521 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2020-09-25 02:19:53,521 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [141761956] [2020-09-25 02:19:53,522 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 02:19:53,522 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-25 02:19:53,522 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [24387315] [2020-09-25 02:19:53,523 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-25 02:19:53,523 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 02:19:53,523 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-25 02:19:53,523 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-09-25 02:19:53,524 INFO L87 Difference]: Start difference. First operand 127 states and 137 transitions. Second operand 6 states. [2020-09-25 02:19:53,786 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 02:19:53,786 INFO L93 Difference]: Finished difference Result 127 states and 137 transitions. [2020-09-25 02:19:53,787 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-25 02:19:53,787 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 86 [2020-09-25 02:19:53,788 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 02:19:53,789 INFO L225 Difference]: With dead ends: 127 [2020-09-25 02:19:53,789 INFO L226 Difference]: Without dead ends: 0 [2020-09-25 02:19:53,789 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2020-09-25 02:19:53,790 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-09-25 02:19:53,790 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-09-25 02:19:53,790 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-09-25 02:19:53,791 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-09-25 02:19:53,791 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 86 [2020-09-25 02:19:53,791 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 02:19:53,792 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-09-25 02:19:53,792 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-25 02:19:53,792 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-09-25 02:19:53,793 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-09-25 02:19:53,793 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-25 02:19:53,797 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-09-25 02:19:53,897 INFO L268 CegarLoopResult]: For program point L60(line 60) no Hoare annotation was computed. [2020-09-25 02:19:53,897 INFO L268 CegarLoopResult]: For program point L60-1(line 60) no Hoare annotation was computed. [2020-09-25 02:19:53,897 INFO L268 CegarLoopResult]: For program point L60-2(line 60) no Hoare annotation was computed. [2020-09-25 02:19:53,897 INFO L268 CegarLoopResult]: For program point L60-4(line 60) no Hoare annotation was computed. [2020-09-25 02:19:53,898 INFO L268 CegarLoopResult]: For program point L60-5(line 60) no Hoare annotation was computed. [2020-09-25 02:19:53,898 INFO L268 CegarLoopResult]: For program point L60-6(line 60) no Hoare annotation was computed. [2020-09-25 02:19:53,898 INFO L268 CegarLoopResult]: For program point L60-7(line 60) no Hoare annotation was computed. [2020-09-25 02:19:53,898 INFO L268 CegarLoopResult]: For program point L60-8(line 60) no Hoare annotation was computed. [2020-09-25 02:19:53,898 INFO L268 CegarLoopResult]: For program point L60-9(line 60) no Hoare annotation was computed. [2020-09-25 02:19:53,898 INFO L268 CegarLoopResult]: For program point L52-1(lines 52 73) no Hoare annotation was computed. [2020-09-25 02:19:53,898 INFO L268 CegarLoopResult]: For program point L60-11(line 60) no Hoare annotation was computed. [2020-09-25 02:19:53,899 INFO L271 CegarLoopResult]: At program point L52-3(lines 52 73) the Hoare annotation is: true [2020-09-25 02:19:53,899 INFO L268 CegarLoopResult]: For program point L60-12(line 60) no Hoare annotation was computed. [2020-09-25 02:19:53,899 INFO L268 CegarLoopResult]: For program point L52-4(lines 52 73) no Hoare annotation was computed. [2020-09-25 02:19:53,899 INFO L268 CegarLoopResult]: For program point L60-13(lines 54 72) no Hoare annotation was computed. [2020-09-25 02:19:53,899 INFO L268 CegarLoopResult]: For program point L69(line 69) no Hoare annotation was computed. [2020-09-25 02:19:53,900 INFO L268 CegarLoopResult]: For program point L53(line 53) no Hoare annotation was computed. [2020-09-25 02:19:53,900 INFO L268 CegarLoopResult]: For program point L53-1(line 53) no Hoare annotation was computed. [2020-09-25 02:19:53,900 INFO L268 CegarLoopResult]: For program point L62(lines 62 64) no Hoare annotation was computed. [2020-09-25 02:19:53,900 INFO L268 CegarLoopResult]: For program point L54(line 54) no Hoare annotation was computed. [2020-09-25 02:19:53,900 INFO L268 CegarLoopResult]: For program point L54-1(line 54) no Hoare annotation was computed. [2020-09-25 02:19:53,900 INFO L268 CegarLoopResult]: For program point L54-2(lines 54 72) no Hoare annotation was computed. [2020-09-25 02:19:53,900 INFO L268 CegarLoopResult]: For program point L54-3(lines 54 72) no Hoare annotation was computed. [2020-09-25 02:19:53,901 INFO L268 CegarLoopResult]: For program point L63(line 63) no Hoare annotation was computed. [2020-09-25 02:19:53,901 INFO L268 CegarLoopResult]: For program point L55(line 55) no Hoare annotation was computed. [2020-09-25 02:19:53,901 INFO L268 CegarLoopResult]: For program point L56-1(line 56) no Hoare annotation was computed. [2020-09-25 02:19:53,901 INFO L268 CegarLoopResult]: For program point L56-2(line 56) no Hoare annotation was computed. [2020-09-25 02:19:53,901 INFO L268 CegarLoopResult]: For program point L56-4(line 56) no Hoare annotation was computed. [2020-09-25 02:19:53,901 INFO L268 CegarLoopResult]: For program point L56-5(line 56) no Hoare annotation was computed. [2020-09-25 02:19:53,901 INFO L268 CegarLoopResult]: For program point L56-6(line 56) no Hoare annotation was computed. [2020-09-25 02:19:53,902 INFO L268 CegarLoopResult]: For program point L56-7(line 56) no Hoare annotation was computed. [2020-09-25 02:19:53,902 INFO L268 CegarLoopResult]: For program point L56-8(line 56) no Hoare annotation was computed. [2020-09-25 02:19:53,902 INFO L268 CegarLoopResult]: For program point L56-9(line 56) no Hoare annotation was computed. [2020-09-25 02:19:53,902 INFO L268 CegarLoopResult]: For program point L56-11(line 56) no Hoare annotation was computed. [2020-09-25 02:19:53,902 INFO L268 CegarLoopResult]: For program point L56-12(line 56) no Hoare annotation was computed. [2020-09-25 02:19:53,902 INFO L268 CegarLoopResult]: For program point L56-13(line 56) no Hoare annotation was computed. [2020-09-25 02:19:53,902 INFO L268 CegarLoopResult]: For program point L56-14(line 56) no Hoare annotation was computed. [2020-09-25 02:19:53,903 INFO L268 CegarLoopResult]: For program point L56-15(line 56) no Hoare annotation was computed. [2020-09-25 02:19:53,903 INFO L268 CegarLoopResult]: For program point L73(lines 52 73) no Hoare annotation was computed. [2020-09-25 02:19:53,903 INFO L268 CegarLoopResult]: For program point L56-16(line 56) no Hoare annotation was computed. [2020-09-25 02:19:53,903 INFO L268 CegarLoopResult]: For program point L73-1(line 73) no Hoare annotation was computed. [2020-09-25 02:19:53,903 INFO L271 CegarLoopResult]: At program point L56-17(line 56) the Hoare annotation is: true [2020-09-25 02:19:53,903 INFO L268 CegarLoopResult]: For program point L73-2(line 73) no Hoare annotation was computed. [2020-09-25 02:19:53,903 INFO L268 CegarLoopResult]: For program point L56-18(line 56) no Hoare annotation was computed. [2020-09-25 02:19:53,904 INFO L264 CegarLoopResult]: At program point L65(line 65) the Hoare annotation is: (< parse_expression_list_~j~0 (+ parse_expression_list_~start~0 1)) [2020-09-25 02:19:53,904 INFO L268 CegarLoopResult]: For program point L65-1(line 65) no Hoare annotation was computed. [2020-09-25 02:19:53,904 INFO L268 CegarLoopResult]: For program point L57(line 57) no Hoare annotation was computed. [2020-09-25 02:19:53,904 INFO L268 CegarLoopResult]: For program point L57-1(line 57) no Hoare annotation was computed. [2020-09-25 02:19:53,904 INFO L268 CegarLoopResult]: For program point L57-2(line 57) no Hoare annotation was computed. [2020-09-25 02:19:53,904 INFO L268 CegarLoopResult]: For program point L57-3(line 57) no Hoare annotation was computed. [2020-09-25 02:19:53,905 INFO L268 CegarLoopResult]: For program point L57-4(line 57) no Hoare annotation was computed. [2020-09-25 02:19:53,905 INFO L268 CegarLoopResult]: For program point L57-6(line 57) no Hoare annotation was computed. [2020-09-25 02:19:53,905 INFO L268 CegarLoopResult]: For program point L57-7(line 57) no Hoare annotation was computed. [2020-09-25 02:19:53,905 INFO L268 CegarLoopResult]: For program point L49(line 49) no Hoare annotation was computed. [2020-09-25 02:19:53,905 INFO L268 CegarLoopResult]: For program point L49-1(line 49) no Hoare annotation was computed. [2020-09-25 02:19:53,905 INFO L268 CegarLoopResult]: For program point L49-2(line 49) no Hoare annotation was computed. [2020-09-25 02:19:53,906 INFO L264 CegarLoopResult]: At program point L66(line 66) the Hoare annotation is: (< parse_expression_list_~j~0 (+ parse_expression_list_~start~0 1)) [2020-09-25 02:19:53,906 INFO L268 CegarLoopResult]: For program point L66-1(line 66) no Hoare annotation was computed. [2020-09-25 02:19:53,906 INFO L268 CegarLoopResult]: For program point parse_expression_listFINAL(lines 47 75) no Hoare annotation was computed. [2020-09-25 02:19:53,906 INFO L264 CegarLoopResult]: At program point parse_expression_listENTRY(lines 47 75) the Hoare annotation is: (= |old(#valid)| |#valid|) [2020-09-25 02:19:53,906 INFO L268 CegarLoopResult]: For program point L50(line 50) no Hoare annotation was computed. [2020-09-25 02:19:53,906 INFO L268 CegarLoopResult]: For program point L50-1(lines 48 75) no Hoare annotation was computed. [2020-09-25 02:19:53,906 INFO L268 CegarLoopResult]: For program point L50-2(line 50) no Hoare annotation was computed. [2020-09-25 02:19:53,907 INFO L268 CegarLoopResult]: For program point L50-3(line 50) no Hoare annotation was computed. [2020-09-25 02:19:53,907 INFO L268 CegarLoopResult]: For program point L50-4(line 50) no Hoare annotation was computed. [2020-09-25 02:19:53,907 INFO L268 CegarLoopResult]: For program point L50-5(line 50) no Hoare annotation was computed. [2020-09-25 02:19:53,907 INFO L268 CegarLoopResult]: For program point L50-6(line 50) no Hoare annotation was computed. [2020-09-25 02:19:53,907 INFO L268 CegarLoopResult]: For program point L50-7(line 50) no Hoare annotation was computed. [2020-09-25 02:19:53,907 INFO L268 CegarLoopResult]: For program point L50-8(line 50) no Hoare annotation was computed. [2020-09-25 02:19:53,908 INFO L268 CegarLoopResult]: For program point L50-9(line 50) no Hoare annotation was computed. [2020-09-25 02:19:53,908 INFO L268 CegarLoopResult]: For program point L67(lines 61 70) no Hoare annotation was computed. [2020-09-25 02:19:53,908 INFO L268 CegarLoopResult]: For program point parse_expression_listEXIT(lines 47 75) no Hoare annotation was computed. [2020-09-25 02:19:53,908 INFO L268 CegarLoopResult]: For program point L59-1(line 59) no Hoare annotation was computed. [2020-09-25 02:19:53,908 INFO L268 CegarLoopResult]: For program point L59-2(line 59) no Hoare annotation was computed. [2020-09-25 02:19:53,908 INFO L268 CegarLoopResult]: For program point L59-3(line 59) no Hoare annotation was computed. [2020-09-25 02:19:53,908 INFO L268 CegarLoopResult]: For program point L59-4(line 59) no Hoare annotation was computed. [2020-09-25 02:19:53,909 INFO L268 CegarLoopResult]: For program point L59-6(line 59) no Hoare annotation was computed. [2020-09-25 02:19:53,909 INFO L268 CegarLoopResult]: For program point L59-7(line 59) no Hoare annotation was computed. [2020-09-25 02:19:53,909 INFO L268 CegarLoopResult]: For program point L51(line 51) no Hoare annotation was computed. [2020-09-25 02:19:53,909 INFO L268 CegarLoopResult]: For program point L59-8(line 59) no Hoare annotation was computed. [2020-09-25 02:19:53,909 INFO L268 CegarLoopResult]: For program point L59-10(line 59) no Hoare annotation was computed. [2020-09-25 02:19:53,909 INFO L268 CegarLoopResult]: For program point L59-11(line 59) no Hoare annotation was computed. [2020-09-25 02:19:53,910 INFO L268 CegarLoopResult]: For program point L59-12(line 59) no Hoare annotation was computed. [2020-09-25 02:19:53,910 INFO L268 CegarLoopResult]: For program point L59-13(line 59) no Hoare annotation was computed. [2020-09-25 02:19:53,910 INFO L268 CegarLoopResult]: For program point L59-14(line 59) no Hoare annotation was computed. [2020-09-25 02:19:53,910 INFO L268 CegarLoopResult]: For program point L59-16(line 59) no Hoare annotation was computed. [2020-09-25 02:19:53,910 INFO L268 CegarLoopResult]: For program point L59-17(line 59) no Hoare annotation was computed. [2020-09-25 02:19:53,910 INFO L268 CegarLoopResult]: For program point L59-18(line 59) no Hoare annotation was computed. [2020-09-25 02:19:53,910 INFO L268 CegarLoopResult]: For program point L59-19(line 59) no Hoare annotation was computed. [2020-09-25 02:19:53,911 INFO L268 CegarLoopResult]: For program point L59-20(line 59) no Hoare annotation was computed. [2020-09-25 02:19:53,911 INFO L268 CegarLoopResult]: For program point L59-21(line 59) no Hoare annotation was computed. [2020-09-25 02:19:53,911 INFO L268 CegarLoopResult]: For program point L59-22(line 59) no Hoare annotation was computed. [2020-09-25 02:19:53,911 INFO L271 CegarLoopResult]: At program point L59-23(line 59) the Hoare annotation is: true [2020-09-25 02:19:53,911 INFO L268 CegarLoopResult]: For program point L59-24(line 59) no Hoare annotation was computed. [2020-09-25 02:19:53,911 INFO L268 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2020-09-25 02:19:53,911 INFO L268 CegarLoopResult]: For program point L-1-1(line -1) no Hoare annotation was computed. [2020-09-25 02:19:53,912 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-09-25 02:19:53,912 INFO L264 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#valid)| |#valid|)) [2020-09-25 02:19:53,912 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-09-25 02:19:53,912 INFO L268 CegarLoopResult]: For program point r_strncpyFINAL(line 31) no Hoare annotation was computed. [2020-09-25 02:19:53,912 INFO L268 CegarLoopResult]: For program point L31(line 31) no Hoare annotation was computed. [2020-09-25 02:19:53,913 INFO L268 CegarLoopResult]: For program point L31-1(line 31) no Hoare annotation was computed. [2020-09-25 02:19:53,913 INFO L268 CegarLoopResult]: For program point L31-2(line 31) no Hoare annotation was computed. [2020-09-25 02:19:53,913 INFO L268 CegarLoopResult]: For program point r_strncpyEXIT(line 31) no Hoare annotation was computed. [2020-09-25 02:19:53,913 INFO L268 CegarLoopResult]: For program point L31-3(line 31) no Hoare annotation was computed. [2020-09-25 02:19:53,913 INFO L268 CegarLoopResult]: For program point L31-4(line 31) no Hoare annotation was computed. [2020-09-25 02:19:53,913 INFO L271 CegarLoopResult]: At program point r_strncpyENTRY(line 31) the Hoare annotation is: true [2020-09-25 02:19:53,913 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-09-25 02:19:53,914 INFO L271 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true [2020-09-25 02:19:53,914 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-09-25 02:19:53,914 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-09-25 02:19:53,914 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 76 85) no Hoare annotation was computed. [2020-09-25 02:19:53,914 INFO L268 CegarLoopResult]: For program point L83(line 83) no Hoare annotation was computed. [2020-09-25 02:19:53,914 INFO L268 CegarLoopResult]: For program point L83-1(line 83) no Hoare annotation was computed. [2020-09-25 02:19:53,914 INFO L268 CegarLoopResult]: For program point L79-2(lines 79 81) no Hoare annotation was computed. [2020-09-25 02:19:53,915 INFO L268 CegarLoopResult]: For program point mainFINAL(lines 76 85) no Hoare annotation was computed. [2020-09-25 02:19:53,915 INFO L268 CegarLoopResult]: For program point L79-3(line 79) no Hoare annotation was computed. [2020-09-25 02:19:53,915 INFO L268 CegarLoopResult]: For program point L79-4(line 79) no Hoare annotation was computed. [2020-09-25 02:19:53,915 INFO L271 CegarLoopResult]: At program point L79-5(lines 79 81) the Hoare annotation is: true [2020-09-25 02:19:53,915 INFO L268 CegarLoopResult]: For program point L79-6(lines 79 81) no Hoare annotation was computed. [2020-09-25 02:19:53,915 INFO L264 CegarLoopResult]: At program point mainENTRY(lines 76 85) the Hoare annotation is: (= |old(#valid)| |#valid|) [2020-09-25 02:19:53,916 INFO L268 CegarLoopResult]: For program point L84(line 84) no Hoare annotation was computed. [2020-09-25 02:19:53,916 INFO L271 CegarLoopResult]: At program point L82(line 82) the Hoare annotation is: true [2020-09-25 02:19:53,916 INFO L268 CegarLoopResult]: For program point L80(line 80) no Hoare annotation was computed. [2020-09-25 02:19:53,916 INFO L268 CegarLoopResult]: For program point L80-1(line 80) no Hoare annotation was computed. [2020-09-25 02:19:53,916 INFO L268 CegarLoopResult]: For program point L78(line 78) no Hoare annotation was computed. [2020-09-25 02:19:53,916 INFO L268 CegarLoopResult]: For program point L80-2(line 80) no Hoare annotation was computed. [2020-09-25 02:19:53,916 INFO L268 CegarLoopResult]: For program point L78-1(line 78) no Hoare annotation was computed. [2020-09-25 02:19:53,917 INFO L268 CegarLoopResult]: For program point L78-2(line 78) no Hoare annotation was computed. [2020-09-25 02:19:53,917 INFO L271 CegarLoopResult]: At program point __VERIFIER_assertENTRY(lines 3 8) the Hoare annotation is: true [2020-09-25 02:19:53,917 INFO L268 CegarLoopResult]: For program point __VERIFIER_assertEXIT(lines 3 8) no Hoare annotation was computed. [2020-09-25 02:19:53,917 INFO L268 CegarLoopResult]: For program point L5(line 5) no Hoare annotation was computed. [2020-09-25 02:19:53,917 INFO L268 CegarLoopResult]: For program point L4(lines 4 6) no Hoare annotation was computed. [2020-09-25 02:19:53,917 INFO L268 CegarLoopResult]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 5) no Hoare annotation was computed. [2020-09-25 02:19:53,917 INFO L268 CegarLoopResult]: For program point L4-2(lines 3 8) no Hoare annotation was computed. [2020-09-25 02:19:53,935 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.09 02:19:53 BoogieIcfgContainer [2020-09-25 02:19:53,936 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-25 02:19:53,944 INFO L168 Benchmark]: Toolchain (without parser) took 32154.09 ms. Allocated memory was 147.8 MB in the beginning and 403.7 MB in the end (delta: 255.9 MB). Free memory was 103.5 MB in the beginning and 366.1 MB in the end (delta: -262.5 MB). Peak memory consumption was 266.5 MB. Max. memory is 7.1 GB. [2020-09-25 02:19:53,946 INFO L168 Benchmark]: CDTParser took 0.26 ms. Allocated memory is still 147.8 MB. Free memory was 122.5 MB in the beginning and 122.1 MB in the end (delta: 419.7 kB). Peak memory consumption was 419.7 kB. Max. memory is 7.1 GB. [2020-09-25 02:19:53,947 INFO L168 Benchmark]: CACSL2BoogieTranslator took 509.19 ms. Allocated memory was 147.8 MB in the beginning and 203.9 MB in the end (delta: 56.1 MB). Free memory was 103.1 MB in the beginning and 180.2 MB in the end (delta: -77.1 MB). Peak memory consumption was 19.6 MB. Max. memory is 7.1 GB. [2020-09-25 02:19:53,948 INFO L168 Benchmark]: Boogie Preprocessor took 57.28 ms. Allocated memory is still 203.9 MB. Free memory was 180.2 MB in the beginning and 178.0 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.2 MB. Max. memory is 7.1 GB. [2020-09-25 02:19:53,949 INFO L168 Benchmark]: RCFGBuilder took 585.63 ms. Allocated memory is still 203.9 MB. Free memory was 178.0 MB in the beginning and 143.4 MB in the end (delta: 34.6 MB). Peak memory consumption was 34.6 MB. Max. memory is 7.1 GB. [2020-09-25 02:19:53,950 INFO L168 Benchmark]: TraceAbstraction took 30991.56 ms. Allocated memory was 203.9 MB in the beginning and 403.7 MB in the end (delta: 199.8 MB). Free memory was 142.5 MB in the beginning and 366.1 MB in the end (delta: -223.6 MB). Peak memory consumption was 249.3 MB. Max. memory is 7.1 GB. [2020-09-25 02:19:53,954 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26 ms. Allocated memory is still 147.8 MB. Free memory was 122.5 MB in the beginning and 122.1 MB in the end (delta: 419.7 kB). Peak memory consumption was 419.7 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 509.19 ms. Allocated memory was 147.8 MB in the beginning and 203.9 MB in the end (delta: 56.1 MB). Free memory was 103.1 MB in the beginning and 180.2 MB in the end (delta: -77.1 MB). Peak memory consumption was 19.6 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 57.28 ms. Allocated memory is still 203.9 MB. Free memory was 180.2 MB in the beginning and 178.0 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.2 MB. Max. memory is 7.1 GB. * RCFGBuilder took 585.63 ms. Allocated memory is still 203.9 MB. Free memory was 178.0 MB in the beginning and 143.4 MB in the end (delta: 34.6 MB). Peak memory consumption was 34.6 MB. Max. memory is 7.1 GB. * TraceAbstraction took 30991.56 ms. Allocated memory was 203.9 MB in the beginning and 403.7 MB in the end (delta: 199.8 MB). Free memory was 142.5 MB in the beginning and 366.1 MB in the end (delta: -223.6 MB). Peak memory consumption was 249.3 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 5]: 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: 52]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 56]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 59]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 79]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 6 procedures, 135 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 30.7s, OverallIterations: 6, TraceHistogramMax: 3, AutomataDifference: 1.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.1s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 723 SDtfs, 133 SDslu, 1177 SDs, 0 SdLazy, 911 SolverSat, 30 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 57 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=135occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 6 MinimizatonAttempts, 15 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 14 LocationsWithAnnotation, 48 PreInvPairs, 57 NumberOfFragments, 35 HoareAnnotationTreeSize, 48 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 14 FomulaSimplificationsInter, 40 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 28.4s InterpolantComputationTime, 421 NumberOfCodeBlocks, 421 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 415 ConstructedInterpolants, 0 QuantifiedInterpolants, 38150 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 4 PerfectInterpolantSequences, 25/35 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...