/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/automizer/mcr/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-McrAutomaton-WP.epf -i ../../../trunk/examples/svcomp/pthread-wmm/safe027_tso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.2.0-7a177ad [2020-11-09 15:42:45,005 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-09 15:42:45,008 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-09 15:42:45,060 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-09 15:42:45,061 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-09 15:42:45,065 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-09 15:42:45,068 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-09 15:42:45,075 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-09 15:42:45,078 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-09 15:42:45,084 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-09 15:42:45,085 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-09 15:42:45,086 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-09 15:42:45,087 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-09 15:42:45,090 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-09 15:42:45,091 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-09 15:42:45,093 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-09 15:42:45,094 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-09 15:42:45,097 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-09 15:42:45,114 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-09 15:42:45,116 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-09 15:42:45,118 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-09 15:42:45,119 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-09 15:42:45,121 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-09 15:42:45,121 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-09 15:42:45,124 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-09 15:42:45,125 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-09 15:42:45,125 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-09 15:42:45,126 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-09 15:42:45,126 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-09 15:42:45,128 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-09 15:42:45,128 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-09 15:42:45,129 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-09 15:42:45,130 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-09 15:42:45,130 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-09 15:42:45,132 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-09 15:42:45,132 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-09 15:42:45,133 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-09 15:42:45,133 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-09 15:42:45,133 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-09 15:42:45,134 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-09 15:42:45,135 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-09 15:42:45,136 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/mcr/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-McrAutomaton-WP.epf [2020-11-09 15:42:45,161 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-09 15:42:45,161 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-09 15:42:45,163 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-09 15:42:45,163 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-09 15:42:45,163 INFO L138 SettingsManager]: * Use SBE=true [2020-11-09 15:42:45,164 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-09 15:42:45,164 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-09 15:42:45,164 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-09 15:42:45,164 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-09 15:42:45,165 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-09 15:42:45,165 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-09 15:42:45,165 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-09 15:42:45,165 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-09 15:42:45,166 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-09 15:42:45,166 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-09 15:42:45,166 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-09 15:42:45,166 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-09 15:42:45,167 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-09 15:42:45,167 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-09 15:42:45,167 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-09 15:42:45,167 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-09 15:42:45,168 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-09 15:42:45,168 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-09 15:42:45,168 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_NestedInterpolation [2020-11-09 15:42:45,168 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-09 15:42:45,169 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-09 15:42:45,169 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-09 15:42:45,169 INFO L138 SettingsManager]: * Override the interpolant automaton setting of the refinement strategy=true [2020-11-09 15:42:45,169 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=VARIABLE_BASED_MOVER_CHECK [2020-11-09 15:42:45,170 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-09 15:42:45,170 INFO L138 SettingsManager]: * Interpolant automaton=MCR WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-11-09 15:42:45,510 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-09 15:42:45,537 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-09 15:42:45,540 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-09 15:42:45,541 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-09 15:42:45,542 INFO L275 PluginConnector]: CDTParser initialized [2020-11-09 15:42:45,543 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe027_tso.oepc.i [2020-11-09 15:42:45,620 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1e6eb89af/ecbf6c3142e3426e9482a6e1fcc3b442/FLAG33e6b909f [2020-11-09 15:42:46,421 INFO L306 CDTParser]: Found 1 translation units. [2020-11-09 15:42:46,422 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe027_tso.oepc.i [2020-11-09 15:42:46,438 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1e6eb89af/ecbf6c3142e3426e9482a6e1fcc3b442/FLAG33e6b909f [2020-11-09 15:42:46,459 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1e6eb89af/ecbf6c3142e3426e9482a6e1fcc3b442 [2020-11-09 15:42:46,462 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-09 15:42:46,469 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-11-09 15:42:46,471 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-09 15:42:46,471 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-09 15:42:46,475 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-09 15:42:46,476 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 03:42:46" (1/1) ... [2020-11-09 15:42:46,479 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1869556f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:42:46, skipping insertion in model container [2020-11-09 15:42:46,479 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 03:42:46" (1/1) ... [2020-11-09 15:42:46,488 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-09 15:42:46,530 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-09 15:42:46,976 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-09 15:42:46,991 INFO L203 MainTranslator]: Completed pre-run [2020-11-09 15:42:47,067 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-09 15:42:47,177 INFO L208 MainTranslator]: Completed translation [2020-11-09 15:42:47,178 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:42:47 WrapperNode [2020-11-09 15:42:47,178 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-09 15:42:47,183 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-09 15:42:47,183 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-09 15:42:47,183 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-09 15:42:47,194 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:42:47" (1/1) ... [2020-11-09 15:42:47,222 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:42:47" (1/1) ... [2020-11-09 15:42:47,247 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-09 15:42:47,248 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-09 15:42:47,248 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-09 15:42:47,248 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-09 15:42:47,257 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:42:47" (1/1) ... [2020-11-09 15:42:47,257 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:42:47" (1/1) ... [2020-11-09 15:42:47,260 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:42:47" (1/1) ... [2020-11-09 15:42:47,261 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:42:47" (1/1) ... [2020-11-09 15:42:47,269 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:42:47" (1/1) ... [2020-11-09 15:42:47,271 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:42:47" (1/1) ... [2020-11-09 15:42:47,273 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:42:47" (1/1) ... [2020-11-09 15:42:47,277 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-09 15:42:47,278 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-09 15:42:47,278 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-09 15:42:47,278 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-09 15:42:47,279 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:42:47" (1/1) ... No working directory specified, using /storage/repos/ultimate/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 [2020-11-09 15:42:47,355 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-09 15:42:47,355 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-11-09 15:42:47,355 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-09 15:42:47,355 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-09 15:42:47,356 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-11-09 15:42:47,356 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-11-09 15:42:47,356 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-11-09 15:42:47,356 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-11-09 15:42:47,356 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-11-09 15:42:47,356 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-11-09 15:42:47,356 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2020-11-09 15:42:47,357 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2020-11-09 15:42:47,357 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-09 15:42:47,357 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-11-09 15:42:47,357 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-09 15:42:47,357 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-09 15:42:47,359 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-11-09 15:42:47,991 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-09 15:42:47,991 INFO L298 CfgBuilder]: Removed 10 assume(true) statements. [2020-11-09 15:42:47,995 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 03:42:47 BoogieIcfgContainer [2020-11-09 15:42:47,995 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-09 15:42:47,999 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-09 15:42:47,999 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-09 15:42:48,002 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-09 15:42:48,003 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 03:42:46" (1/3) ... [2020-11-09 15:42:48,004 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@74423d18 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 03:42:48, skipping insertion in model container [2020-11-09 15:42:48,004 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:42:47" (2/3) ... [2020-11-09 15:42:48,004 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@74423d18 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 03:42:48, skipping insertion in model container [2020-11-09 15:42:48,004 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 03:42:47" (3/3) ... [2020-11-09 15:42:48,006 INFO L111 eAbstractionObserver]: Analyzing ICFG safe027_tso.oepc.i [2020-11-09 15:42:48,022 WARN L168 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-11-09 15:42:48,023 INFO L179 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-11-09 15:42:48,027 INFO L191 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-09 15:42:48,027 INFO L351 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-11-09 15:42:48,071 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:42:48,071 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:42:48,071 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:42:48,071 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:42:48,072 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:42:48,072 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:42:48,072 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:42:48,072 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:42:48,078 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:42:48,078 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:42:48,078 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:42:48,078 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:42:48,079 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:42:48,080 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:42:48,080 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:42:48,080 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:42:48,080 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:42:48,080 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:42:48,080 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:42:48,081 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:42:48,081 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:42:48,082 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:42:48,083 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:42:48,083 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:42:48,084 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:42:48,084 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:42:48,084 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:42:48,084 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:42:48,085 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:42:48,085 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:42:48,085 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:42:48,085 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:42:48,087 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:42:48,087 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:42:48,087 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:42:48,087 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:42:48,088 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:42:48,088 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:42:48,088 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:42:48,088 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:42:48,089 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:42:48,089 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:42:48,089 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:42:48,089 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:42:48,090 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:42:48,090 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:42:48,090 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:42:48,090 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:42:48,093 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:42:48,093 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:42:48,093 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:42:48,093 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:42:48,101 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:42:48,102 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:42:48,102 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:42:48,102 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:42:48,106 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:42:48,107 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:42:48,107 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:42:48,107 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:42:48,110 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:42:48,111 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:42:48,111 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:42:48,111 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:42:48,114 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2020-11-09 15:42:48,129 INFO L253 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2020-11-09 15:42:48,165 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-09 15:42:48,166 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-09 15:42:48,166 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-11-09 15:42:48,166 INFO L380 AbstractCegarLoop]: Backedges is MCR [2020-11-09 15:42:48,166 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-09 15:42:48,166 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-09 15:42:48,166 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-09 15:42:48,167 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-09 15:42:48,188 INFO L128 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2020-11-09 15:42:48,189 INFO L135 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 101 places, 91 transitions, 202 flow [2020-11-09 15:42:48,193 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 101 places, 91 transitions, 202 flow [2020-11-09 15:42:48,196 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 101 places, 91 transitions, 202 flow [2020-11-09 15:42:48,277 INFO L129 PetriNetUnfolder]: 3/87 cut-off events. [2020-11-09 15:42:48,278 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-11-09 15:42:48,283 INFO L84 FinitePrefix]: Finished finitePrefix Result has 100 conditions, 87 events. 3/87 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 72 event pairs, 0 based on Foata normal form. 0/83 useless extension candidates. Maximal degree in co-relation 72. Up to 2 conditions per place. [2020-11-09 15:42:48,289 INFO L116 LiptonReduction]: Number of co-enabled transitions 2042 [2020-11-09 15:42:50,783 WARN L194 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 44 [2020-11-09 15:42:51,324 WARN L194 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 27 [2020-11-09 15:42:51,597 WARN L194 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 49 [2020-11-09 15:42:52,273 WARN L194 SmtUtils]: Spent 261.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 78 [2020-11-09 15:42:52,395 WARN L194 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 74 [2020-11-09 15:42:52,652 WARN L194 SmtUtils]: Spent 254.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 78 [2020-11-09 15:42:52,770 WARN L194 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 74 [2020-11-09 15:42:53,182 INFO L131 LiptonReduction]: Checked pairs total: 3854 [2020-11-09 15:42:53,182 INFO L133 LiptonReduction]: Total number of compositions: 80 [2020-11-09 15:42:53,192 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 38 places, 26 transitions, 72 flow [2020-11-09 15:42:53,265 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 706 states. [2020-11-09 15:42:53,269 INFO L276 IsEmpty]: Start isEmpty. Operand 706 states. [2020-11-09 15:42:53,283 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-11-09 15:42:53,283 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 15:42:53,284 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 15:42:53,286 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 15:42:53,295 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 15:42:53,296 INFO L82 PathProgramCache]: Analyzing trace with hash -709438342, now seen corresponding path program 1 times [2020-11-09 15:42:53,317 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 15:42:53,318 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1176838538] [2020-11-09 15:42:53,323 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 15:42:53,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 15:42:53,603 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-09 15:42:53,604 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1176838538] [2020-11-09 15:42:53,605 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 15:42:53,605 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-11-09 15:42:53,606 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1002637278] [2020-11-09 15:42:53,607 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-11-09 15:42:53,610 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-11-09 15:42:53,625 INFO L252 McrAutomatonBuilder]: Finished intersection with 11 states and 10 transitions. [2020-11-09 15:42:53,625 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-11-09 15:42:53,630 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-11-09 15:42:53,630 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-09 15:42:53,630 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 15:42:53,645 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-09 15:42:53,646 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-09 15:42:53,648 INFO L87 Difference]: Start difference. First operand 706 states. Second operand 3 states. [2020-11-09 15:42:53,692 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 15:42:53,693 INFO L93 Difference]: Finished difference Result 670 states and 2295 transitions. [2020-11-09 15:42:53,693 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-09 15:42:53,695 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10 [2020-11-09 15:42:53,695 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 15:42:53,720 INFO L225 Difference]: With dead ends: 670 [2020-11-09 15:42:53,720 INFO L226 Difference]: Without dead ends: 526 [2020-11-09 15:42:53,722 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-09 15:42:53,760 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 526 states. [2020-11-09 15:42:53,850 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 526 to 526. [2020-11-09 15:42:53,851 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 526 states. [2020-11-09 15:42:53,861 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 526 states to 526 states and 1743 transitions. [2020-11-09 15:42:53,863 INFO L78 Accepts]: Start accepts. Automaton has 526 states and 1743 transitions. Word has length 10 [2020-11-09 15:42:53,863 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 15:42:53,864 INFO L481 AbstractCegarLoop]: Abstraction has 526 states and 1743 transitions. [2020-11-09 15:42:53,864 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-09 15:42:53,864 INFO L276 IsEmpty]: Start isEmpty. Operand 526 states and 1743 transitions. [2020-11-09 15:42:53,868 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-11-09 15:42:53,868 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 15:42:53,869 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 15:42:53,869 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-09 15:42:53,869 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 15:42:53,873 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 15:42:53,873 INFO L82 PathProgramCache]: Analyzing trace with hash 839232956, now seen corresponding path program 1 times [2020-11-09 15:42:53,881 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 15:42:53,881 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [347829417] [2020-11-09 15:42:53,881 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 15:42:53,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 15:42:54,007 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-09 15:42:54,008 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [347829417] [2020-11-09 15:42:54,008 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 15:42:54,008 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-09 15:42:54,009 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1005907517] [2020-11-09 15:42:54,009 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-11-09 15:42:54,010 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-11-09 15:42:54,014 INFO L252 McrAutomatonBuilder]: Finished intersection with 19 states and 25 transitions. [2020-11-09 15:42:54,014 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-11-09 15:42:54,119 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-11-09 15:42:54,121 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-09 15:42:54,121 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 15:42:54,121 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-09 15:42:54,122 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-09 15:42:54,122 INFO L87 Difference]: Start difference. First operand 526 states and 1743 transitions. Second operand 4 states. [2020-11-09 15:42:54,154 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 15:42:54,154 INFO L93 Difference]: Finished difference Result 634 states and 2040 transitions. [2020-11-09 15:42:54,155 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-09 15:42:54,155 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2020-11-09 15:42:54,155 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 15:42:54,159 INFO L225 Difference]: With dead ends: 634 [2020-11-09 15:42:54,159 INFO L226 Difference]: Without dead ends: 322 [2020-11-09 15:42:54,160 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-11-09 15:42:54,163 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 322 states. [2020-11-09 15:42:54,172 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 322 to 322. [2020-11-09 15:42:54,172 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 322 states. [2020-11-09 15:42:54,174 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 322 states to 322 states and 1008 transitions. [2020-11-09 15:42:54,174 INFO L78 Accepts]: Start accepts. Automaton has 322 states and 1008 transitions. Word has length 11 [2020-11-09 15:42:54,175 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 15:42:54,175 INFO L481 AbstractCegarLoop]: Abstraction has 322 states and 1008 transitions. [2020-11-09 15:42:54,175 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-09 15:42:54,175 INFO L276 IsEmpty]: Start isEmpty. Operand 322 states and 1008 transitions. [2020-11-09 15:42:54,176 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-11-09 15:42:54,176 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 15:42:54,176 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 15:42:54,177 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-09 15:42:54,177 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 15:42:54,177 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 15:42:54,177 INFO L82 PathProgramCache]: Analyzing trace with hash 1127842304, now seen corresponding path program 1 times [2020-11-09 15:42:54,180 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 15:42:54,180 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1448714500] [2020-11-09 15:42:54,180 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 15:42:54,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 15:42:54,238 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-09 15:42:54,239 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1448714500] [2020-11-09 15:42:54,240 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 15:42:54,240 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-11-09 15:42:54,240 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [283193460] [2020-11-09 15:42:54,240 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-11-09 15:42:54,242 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-11-09 15:42:54,244 INFO L252 McrAutomatonBuilder]: Finished intersection with 15 states and 16 transitions. [2020-11-09 15:42:54,244 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-11-09 15:42:54,253 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-11-09 15:42:54,254 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-09 15:42:54,254 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 15:42:54,255 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-09 15:42:54,255 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-09 15:42:54,255 INFO L87 Difference]: Start difference. First operand 322 states and 1008 transitions. Second operand 3 states. [2020-11-09 15:42:54,267 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 15:42:54,267 INFO L93 Difference]: Finished difference Result 304 states and 939 transitions. [2020-11-09 15:42:54,267 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-09 15:42:54,268 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 12 [2020-11-09 15:42:54,268 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 15:42:54,270 INFO L225 Difference]: With dead ends: 304 [2020-11-09 15:42:54,271 INFO L226 Difference]: Without dead ends: 304 [2020-11-09 15:42:54,271 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-09 15:42:54,273 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 304 states. [2020-11-09 15:42:54,280 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 304 to 304. [2020-11-09 15:42:54,280 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 304 states. [2020-11-09 15:42:54,282 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 304 states to 304 states and 939 transitions. [2020-11-09 15:42:54,282 INFO L78 Accepts]: Start accepts. Automaton has 304 states and 939 transitions. Word has length 12 [2020-11-09 15:42:54,283 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 15:42:54,283 INFO L481 AbstractCegarLoop]: Abstraction has 304 states and 939 transitions. [2020-11-09 15:42:54,283 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-09 15:42:54,283 INFO L276 IsEmpty]: Start isEmpty. Operand 304 states and 939 transitions. [2020-11-09 15:42:54,286 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-11-09 15:42:54,286 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 15:42:54,286 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 15:42:54,286 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-11-09 15:42:54,286 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 15:42:54,287 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 15:42:54,287 INFO L82 PathProgramCache]: Analyzing trace with hash 1624168671, now seen corresponding path program 1 times [2020-11-09 15:42:54,288 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 15:42:54,289 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2079848867] [2020-11-09 15:42:54,289 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 15:42:54,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 15:42:54,352 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-09 15:42:54,352 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2079848867] [2020-11-09 15:42:54,352 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 15:42:54,353 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-09 15:42:54,356 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1726037506] [2020-11-09 15:42:54,356 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-11-09 15:42:54,358 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-11-09 15:42:54,363 INFO L252 McrAutomatonBuilder]: Finished intersection with 23 states and 33 transitions. [2020-11-09 15:42:54,363 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-11-09 15:42:54,412 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-11-09 15:42:54,413 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-09 15:42:54,413 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 15:42:54,413 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-09 15:42:54,414 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-09 15:42:54,414 INFO L87 Difference]: Start difference. First operand 304 states and 939 transitions. Second operand 4 states. [2020-11-09 15:42:54,438 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 15:42:54,439 INFO L93 Difference]: Finished difference Result 406 states and 1208 transitions. [2020-11-09 15:42:54,439 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-09 15:42:54,439 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 13 [2020-11-09 15:42:54,439 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 15:42:54,441 INFO L225 Difference]: With dead ends: 406 [2020-11-09 15:42:54,441 INFO L226 Difference]: Without dead ends: 226 [2020-11-09 15:42:54,442 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-11-09 15:42:54,443 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 226 states. [2020-11-09 15:42:54,449 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 226 to 226. [2020-11-09 15:42:54,449 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 226 states. [2020-11-09 15:42:54,450 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 226 states to 226 states and 651 transitions. [2020-11-09 15:42:54,451 INFO L78 Accepts]: Start accepts. Automaton has 226 states and 651 transitions. Word has length 13 [2020-11-09 15:42:54,451 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 15:42:54,451 INFO L481 AbstractCegarLoop]: Abstraction has 226 states and 651 transitions. [2020-11-09 15:42:54,451 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-09 15:42:54,451 INFO L276 IsEmpty]: Start isEmpty. Operand 226 states and 651 transitions. [2020-11-09 15:42:54,452 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-11-09 15:42:54,452 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 15:42:54,452 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 15:42:54,452 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-11-09 15:42:54,452 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 15:42:54,453 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 15:42:54,453 INFO L82 PathProgramCache]: Analyzing trace with hash 1524641156, now seen corresponding path program 1 times [2020-11-09 15:42:54,454 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 15:42:54,454 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [211193449] [2020-11-09 15:42:54,455 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 15:42:54,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 15:42:54,513 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-09 15:42:54,513 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [211193449] [2020-11-09 15:42:54,514 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 15:42:54,514 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-09 15:42:54,514 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [155132704] [2020-11-09 15:42:54,514 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-11-09 15:42:54,516 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-11-09 15:42:54,522 INFO L252 McrAutomatonBuilder]: Finished intersection with 33 states and 54 transitions. [2020-11-09 15:42:54,522 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-11-09 15:42:54,547 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-11-09 15:42:54,571 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-11-09 15:42:54,583 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-11-09 15:42:54,602 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-11-09 15:42:54,615 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-11-09 15:42:54,628 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-11-09 15:42:54,661 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 1 new interpolants: [6308#(not (= 4 ~__unbuffered_cnt~0))] [2020-11-09 15:42:54,661 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-09 15:42:54,661 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 15:42:54,662 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-09 15:42:54,662 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-11-09 15:42:54,662 INFO L87 Difference]: Start difference. First operand 226 states and 651 transitions. Second operand 5 states. [2020-11-09 15:42:54,760 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 15:42:54,761 INFO L93 Difference]: Finished difference Result 243 states and 637 transitions. [2020-11-09 15:42:54,761 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-11-09 15:42:54,761 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 14 [2020-11-09 15:42:54,761 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 15:42:54,763 INFO L225 Difference]: With dead ends: 243 [2020-11-09 15:42:54,763 INFO L226 Difference]: Without dead ends: 162 [2020-11-09 15:42:54,763 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-11-09 15:42:54,764 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 162 states. [2020-11-09 15:42:54,768 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 162 to 162. [2020-11-09 15:42:54,768 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 162 states. [2020-11-09 15:42:54,769 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 162 states to 162 states and 391 transitions. [2020-11-09 15:42:54,769 INFO L78 Accepts]: Start accepts. Automaton has 162 states and 391 transitions. Word has length 14 [2020-11-09 15:42:54,769 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 15:42:54,769 INFO L481 AbstractCegarLoop]: Abstraction has 162 states and 391 transitions. [2020-11-09 15:42:54,769 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-09 15:42:54,769 INFO L276 IsEmpty]: Start isEmpty. Operand 162 states and 391 transitions. [2020-11-09 15:42:54,770 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-11-09 15:42:54,770 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 15:42:54,770 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 15:42:54,770 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-11-09 15:42:54,771 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 15:42:54,771 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 15:42:54,771 INFO L82 PathProgramCache]: Analyzing trace with hash 1193386920, now seen corresponding path program 1 times [2020-11-09 15:42:54,772 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 15:42:54,773 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1875774101] [2020-11-09 15:42:54,773 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 15:42:54,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 15:42:54,840 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-09 15:42:54,841 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1875774101] [2020-11-09 15:42:54,841 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 15:42:54,841 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-09 15:42:54,841 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1058391385] [2020-11-09 15:42:54,842 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-11-09 15:42:54,844 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-11-09 15:42:54,852 INFO L252 McrAutomatonBuilder]: Finished intersection with 38 states and 62 transitions. [2020-11-09 15:42:54,852 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-11-09 15:42:54,864 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-11-09 15:42:54,898 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-11-09 15:42:54,960 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-11-09 15:42:54,960 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-09 15:42:54,960 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 15:42:54,961 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-09 15:42:54,961 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-11-09 15:42:54,961 INFO L87 Difference]: Start difference. First operand 162 states and 391 transitions. Second operand 6 states. [2020-11-09 15:42:55,032 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 15:42:55,033 INFO L93 Difference]: Finished difference Result 158 states and 360 transitions. [2020-11-09 15:42:55,039 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-11-09 15:42:55,039 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 16 [2020-11-09 15:42:55,039 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 15:42:55,040 INFO L225 Difference]: With dead ends: 158 [2020-11-09 15:42:55,040 INFO L226 Difference]: Without dead ends: 125 [2020-11-09 15:42:55,041 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 19 SyntacticMatches, 2 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2020-11-09 15:42:55,042 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 125 states. [2020-11-09 15:42:55,044 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 125 to 125. [2020-11-09 15:42:55,045 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 125 states. [2020-11-09 15:42:55,045 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125 states to 125 states and 282 transitions. [2020-11-09 15:42:55,046 INFO L78 Accepts]: Start accepts. Automaton has 125 states and 282 transitions. Word has length 16 [2020-11-09 15:42:55,046 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 15:42:55,046 INFO L481 AbstractCegarLoop]: Abstraction has 125 states and 282 transitions. [2020-11-09 15:42:55,046 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-11-09 15:42:55,046 INFO L276 IsEmpty]: Start isEmpty. Operand 125 states and 282 transitions. [2020-11-09 15:42:55,047 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-11-09 15:42:55,047 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 15:42:55,047 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 15:42:55,047 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-11-09 15:42:55,048 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 15:42:55,048 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 15:42:55,048 INFO L82 PathProgramCache]: Analyzing trace with hash -1709090152, now seen corresponding path program 1 times [2020-11-09 15:42:55,051 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 15:42:55,052 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [829507405] [2020-11-09 15:42:55,052 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 15:42:55,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 15:42:55,125 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-09 15:42:55,125 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [829507405] [2020-11-09 15:42:55,125 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 15:42:55,126 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-11-09 15:42:55,126 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [620731648] [2020-11-09 15:42:55,126 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-11-09 15:42:55,129 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-11-09 15:42:55,135 INFO L252 McrAutomatonBuilder]: Finished intersection with 27 states and 34 transitions. [2020-11-09 15:42:55,136 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-11-09 15:42:55,156 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-11-09 15:42:55,157 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-11-09 15:42:55,157 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 15:42:55,158 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-11-09 15:42:55,158 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-11-09 15:42:55,158 INFO L87 Difference]: Start difference. First operand 125 states and 282 transitions. Second operand 7 states. [2020-11-09 15:42:55,233 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 15:42:55,233 INFO L93 Difference]: Finished difference Result 120 states and 270 transitions. [2020-11-09 15:42:55,234 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-11-09 15:42:55,234 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 18 [2020-11-09 15:42:55,234 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 15:42:55,235 INFO L225 Difference]: With dead ends: 120 [2020-11-09 15:42:55,235 INFO L226 Difference]: Without dead ends: 111 [2020-11-09 15:42:55,236 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2020-11-09 15:42:55,236 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 111 states. [2020-11-09 15:42:55,239 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 111 to 111. [2020-11-09 15:42:55,239 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 111 states. [2020-11-09 15:42:55,240 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111 states to 111 states and 254 transitions. [2020-11-09 15:42:55,240 INFO L78 Accepts]: Start accepts. Automaton has 111 states and 254 transitions. Word has length 18 [2020-11-09 15:42:55,240 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 15:42:55,240 INFO L481 AbstractCegarLoop]: Abstraction has 111 states and 254 transitions. [2020-11-09 15:42:55,240 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-11-09 15:42:55,240 INFO L276 IsEmpty]: Start isEmpty. Operand 111 states and 254 transitions. [2020-11-09 15:42:55,241 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2020-11-09 15:42:55,241 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 15:42:55,241 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 15:42:55,241 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-11-09 15:42:55,242 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 15:42:55,242 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 15:42:55,242 INFO L82 PathProgramCache]: Analyzing trace with hash -1760559887, now seen corresponding path program 1 times [2020-11-09 15:42:55,243 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 15:42:55,244 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1843892476] [2020-11-09 15:42:55,244 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 15:42:55,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 15:42:55,283 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-09 15:42:55,284 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1843892476] [2020-11-09 15:42:55,284 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 15:42:55,284 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-09 15:42:55,284 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1583333277] [2020-11-09 15:42:55,284 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-11-09 15:42:55,288 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-11-09 15:42:55,296 INFO L252 McrAutomatonBuilder]: Finished intersection with 31 states and 40 transitions. [2020-11-09 15:42:55,296 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-11-09 15:42:55,320 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-11-09 15:42:55,321 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-09 15:42:55,321 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 15:42:55,321 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-09 15:42:55,322 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-09 15:42:55,322 INFO L87 Difference]: Start difference. First operand 111 states and 254 transitions. Second operand 4 states. [2020-11-09 15:42:55,342 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 15:42:55,342 INFO L93 Difference]: Finished difference Result 144 states and 327 transitions. [2020-11-09 15:42:55,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-09 15:42:55,343 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 20 [2020-11-09 15:42:55,343 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 15:42:55,343 INFO L225 Difference]: With dead ends: 144 [2020-11-09 15:42:55,343 INFO L226 Difference]: Without dead ends: 71 [2020-11-09 15:42:55,344 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-11-09 15:42:55,344 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71 states. [2020-11-09 15:42:55,346 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71 to 71. [2020-11-09 15:42:55,346 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 71 states. [2020-11-09 15:42:55,346 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 71 states and 143 transitions. [2020-11-09 15:42:55,347 INFO L78 Accepts]: Start accepts. Automaton has 71 states and 143 transitions. Word has length 20 [2020-11-09 15:42:55,347 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 15:42:55,347 INFO L481 AbstractCegarLoop]: Abstraction has 71 states and 143 transitions. [2020-11-09 15:42:55,347 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-09 15:42:55,347 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 143 transitions. [2020-11-09 15:42:55,348 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2020-11-09 15:42:55,348 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 15:42:55,348 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 15:42:55,348 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-11-09 15:42:55,348 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 15:42:55,348 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 15:42:55,349 INFO L82 PathProgramCache]: Analyzing trace with hash -1416850207, now seen corresponding path program 2 times [2020-11-09 15:42:55,350 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 15:42:55,350 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [6396687] [2020-11-09 15:42:55,350 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 15:42:55,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 15:42:55,386 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-09 15:42:55,387 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [6396687] [2020-11-09 15:42:55,387 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 15:42:55,387 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-09 15:42:55,387 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1981419582] [2020-11-09 15:42:55,388 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-11-09 15:42:55,391 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-11-09 15:42:55,402 INFO L252 McrAutomatonBuilder]: Finished intersection with 46 states and 74 transitions. [2020-11-09 15:42:55,402 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-11-09 15:42:55,538 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-11-09 15:42:55,538 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-09 15:42:55,539 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 15:42:55,539 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-09 15:42:55,539 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-09 15:42:55,540 INFO L87 Difference]: Start difference. First operand 71 states and 143 transitions. Second operand 4 states. [2020-11-09 15:42:55,555 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 15:42:55,555 INFO L93 Difference]: Finished difference Result 70 states and 142 transitions. [2020-11-09 15:42:55,555 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-09 15:42:55,555 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 20 [2020-11-09 15:42:55,555 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 15:42:55,556 INFO L225 Difference]: With dead ends: 70 [2020-11-09 15:42:55,556 INFO L226 Difference]: Without dead ends: 0 [2020-11-09 15:42:55,556 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-11-09 15:42:55,556 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-11-09 15:42:55,557 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-11-09 15:42:55,557 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-11-09 15:42:55,557 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-11-09 15:42:55,557 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 20 [2020-11-09 15:42:55,557 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 15:42:55,557 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-09 15:42:55,557 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-09 15:42:55,558 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-11-09 15:42:55,558 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-09 15:42:55,558 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-11-09 15:42:55,561 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.11 03:42:55 BasicIcfg [2020-11-09 15:42:55,562 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-09 15:42:55,563 INFO L168 Benchmark]: Toolchain (without parser) took 9098.36 ms. Allocated memory was 151.0 MB in the beginning and 223.3 MB in the end (delta: 72.4 MB). Free memory was 125.4 MB in the beginning and 187.7 MB in the end (delta: -62.3 MB). Peak memory consumption was 10.5 MB. Max. memory is 8.0 GB. [2020-11-09 15:42:55,564 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 151.0 MB. Free memory is still 122.8 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-11-09 15:42:55,564 INFO L168 Benchmark]: CACSL2BoogieTranslator took 710.95 ms. Allocated memory is still 151.0 MB. Free memory was 124.7 MB in the beginning and 129.3 MB in the end (delta: -4.6 MB). Peak memory consumption was 31.7 MB. Max. memory is 8.0 GB. [2020-11-09 15:42:55,565 INFO L168 Benchmark]: Boogie Procedure Inliner took 64.15 ms. Allocated memory is still 151.0 MB. Free memory was 129.3 MB in the beginning and 127.2 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2020-11-09 15:42:55,566 INFO L168 Benchmark]: Boogie Preprocessor took 29.23 ms. Allocated memory is still 151.0 MB. Free memory was 127.2 MB in the beginning and 126.1 MB in the end (delta: 1.0 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2020-11-09 15:42:55,567 INFO L168 Benchmark]: RCFGBuilder took 717.87 ms. Allocated memory is still 151.0 MB. Free memory was 125.6 MB in the beginning and 100.9 MB in the end (delta: 24.6 MB). Peak memory consumption was 25.2 MB. Max. memory is 8.0 GB. [2020-11-09 15:42:55,567 INFO L168 Benchmark]: TraceAbstraction took 7563.21 ms. Allocated memory was 151.0 MB in the beginning and 223.3 MB in the end (delta: 72.4 MB). Free memory was 100.4 MB in the beginning and 187.7 MB in the end (delta: -87.2 MB). There was no memory consumed. Max. memory is 8.0 GB. [2020-11-09 15:42:55,571 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 151.0 MB. Free memory is still 122.8 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 710.95 ms. Allocated memory is still 151.0 MB. Free memory was 124.7 MB in the beginning and 129.3 MB in the end (delta: -4.6 MB). Peak memory consumption was 31.7 MB. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 64.15 ms. Allocated memory is still 151.0 MB. Free memory was 129.3 MB in the beginning and 127.2 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 29.23 ms. Allocated memory is still 151.0 MB. Free memory was 127.2 MB in the beginning and 126.1 MB in the end (delta: 1.0 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 717.87 ms. Allocated memory is still 151.0 MB. Free memory was 125.6 MB in the beginning and 100.9 MB in the end (delta: 24.6 MB). Peak memory consumption was 25.2 MB. Max. memory is 8.0 GB. * TraceAbstraction took 7563.21 ms. Allocated memory was 151.0 MB in the beginning and 223.3 MB in the end (delta: 72.4 MB). Free memory was 100.4 MB in the beginning and 187.7 MB in the end (delta: -87.2 MB). There was no memory consumed. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 1064 VarBasedMoverChecksPositive, 36 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 0 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 66 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 4.9s, 101 PlacesBefore, 38 PlacesAfterwards, 91 TransitionsBefore, 26 TransitionsAfterwards, 2042 CoEnabledTransitionPairs, 6 FixpointIterations, 19 TrivialSequentialCompositions, 50 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 9 ConcurrentYvCompositions, 2 ChoiceCompositions, 80 TotalNumberOfCompositions, 3854 MoverChecksTotal - PositiveResult [Line: 17]: 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 - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 89 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 7.3s, OverallIterations: 9, TraceHistogramMax: 1, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 5.1s, HoareTripleCheckerStatistics: 188 SDtfs, 165 SDslu, 279 SDs, 0 SdLazy, 160 SolverSat, 45 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 131 GetRequests, 99 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=706occurred 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, 9 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 134 NumberOfCodeBlocks, 134 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 125 ConstructedInterpolants, 0 QuantifiedInterpolants, 4945 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 9 InterpolantComputations, 9 PerfectInterpolantSequences, 0/0 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...