/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/AutomizerCInline.xml -s ../../../trunk/examples/settings/automizer/mcr/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA.epf -i ../../../trunk/examples/svcomp/pthread-wmm/mix054_pso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-b09bf87 [2020-10-16 12:04:36,013 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-16 12:04:36,016 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-16 12:04:36,058 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-16 12:04:36,059 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-16 12:04:36,070 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-16 12:04:36,072 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-16 12:04:36,075 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-16 12:04:36,078 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-16 12:04:36,082 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-16 12:04:36,083 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-16 12:04:36,085 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-16 12:04:36,085 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-16 12:04:36,089 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-16 12:04:36,091 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-16 12:04:36,093 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-16 12:04:36,094 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-16 12:04:36,096 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-16 12:04:36,097 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-16 12:04:36,106 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-16 12:04:36,108 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-16 12:04:36,109 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-16 12:04:36,111 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-16 12:04:36,112 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-16 12:04:36,115 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-16 12:04:36,115 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-16 12:04:36,115 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-16 12:04:36,118 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-16 12:04:36,118 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-16 12:04:36,120 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-16 12:04:36,120 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-16 12:04:36,121 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-16 12:04:36,122 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-16 12:04:36,123 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-16 12:04:36,124 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-16 12:04:36,124 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-16 12:04:36,125 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-16 12:04:36,125 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-16 12:04:36,125 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-16 12:04:36,126 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-16 12:04:36,128 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-16 12:04:36,129 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/mcr/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA.epf [2020-10-16 12:04:36,169 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-16 12:04:36,169 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-16 12:04:36,171 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-16 12:04:36,171 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-16 12:04:36,171 INFO L138 SettingsManager]: * Use SBE=true [2020-10-16 12:04:36,172 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-16 12:04:36,172 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-16 12:04:36,172 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-16 12:04:36,173 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-16 12:04:36,173 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-16 12:04:36,174 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-16 12:04:36,174 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-16 12:04:36,174 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-16 12:04:36,175 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-16 12:04:36,175 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-16 12:04:36,175 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-16 12:04:36,175 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-16 12:04:36,176 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-16 12:04:36,176 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-16 12:04:36,176 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-16 12:04:36,176 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-16 12:04:36,176 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-16 12:04:36,177 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-16 12:04:36,177 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_NestedInterpolation [2020-10-16 12:04:36,177 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-16 12:04:36,177 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-16 12:04:36,177 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-16 12:04:36,178 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=VARIABLE_BASED_MOVER_CHECK [2020-10-16 12:04:36,178 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-16 12:04:36,464 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-16 12:04:36,477 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-16 12:04:36,480 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-16 12:04:36,482 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-16 12:04:36,482 INFO L275 PluginConnector]: CDTParser initialized [2020-10-16 12:04:36,483 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/mix054_pso.opt.i [2020-10-16 12:04:36,544 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/9487936da/87900a7e69f7470e944b27acc27d25d1/FLAGf9847f7d6 [2020-10-16 12:04:37,092 INFO L306 CDTParser]: Found 1 translation units. [2020-10-16 12:04:37,093 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/pthread-wmm/mix054_pso.opt.i [2020-10-16 12:04:37,109 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/9487936da/87900a7e69f7470e944b27acc27d25d1/FLAGf9847f7d6 [2020-10-16 12:04:37,388 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/9487936da/87900a7e69f7470e944b27acc27d25d1 [2020-10-16 12:04:37,397 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-16 12:04:37,399 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-10-16 12:04:37,400 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-16 12:04:37,400 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-16 12:04:37,404 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-16 12:04:37,405 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 12:04:37" (1/1) ... [2020-10-16 12:04:37,408 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@45090060 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:04:37, skipping insertion in model container [2020-10-16 12:04:37,409 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 12:04:37" (1/1) ... [2020-10-16 12:04:37,417 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-16 12:04:37,459 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-16 12:04:38,055 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-16 12:04:38,069 INFO L203 MainTranslator]: Completed pre-run [2020-10-16 12:04:38,132 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-16 12:04:38,222 INFO L208 MainTranslator]: Completed translation [2020-10-16 12:04:38,223 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:04:38 WrapperNode [2020-10-16 12:04:38,223 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-16 12:04:38,224 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-16 12:04:38,224 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-16 12:04:38,224 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-16 12:04:38,234 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:04:38" (1/1) ... [2020-10-16 12:04:38,254 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:04:38" (1/1) ... [2020-10-16 12:04:38,292 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-16 12:04:38,293 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-16 12:04:38,293 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-16 12:04:38,293 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-16 12:04:38,304 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:04:38" (1/1) ... [2020-10-16 12:04:38,304 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:04:38" (1/1) ... [2020-10-16 12:04:38,309 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:04:38" (1/1) ... [2020-10-16 12:04:38,310 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:04:38" (1/1) ... [2020-10-16 12:04:38,319 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:04:38" (1/1) ... [2020-10-16 12:04:38,323 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:04:38" (1/1) ... [2020-10-16 12:04:38,331 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:04:38" (1/1) ... [2020-10-16 12:04:38,336 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-16 12:04:38,337 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-16 12:04:38,337 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-16 12:04:38,337 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-16 12:04:38,343 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:04:38" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-16 12:04:38,430 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-16 12:04:38,430 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-10-16 12:04:38,430 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-16 12:04:38,430 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-16 12:04:38,431 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-10-16 12:04:38,432 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-10-16 12:04:38,433 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-10-16 12:04:38,433 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-10-16 12:04:38,434 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-10-16 12:04:38,434 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-16 12:04:38,436 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-16 12:04:38,439 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-10-16 12:04:40,309 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-16 12:04:40,310 INFO L298 CfgBuilder]: Removed 10 assume(true) statements. [2020-10-16 12:04:40,312 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 12:04:40 BoogieIcfgContainer [2020-10-16 12:04:40,312 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-16 12:04:40,313 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-16 12:04:40,314 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-16 12:04:40,317 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-16 12:04:40,317 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.10 12:04:37" (1/3) ... [2020-10-16 12:04:40,318 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3c7806da and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 12:04:40, skipping insertion in model container [2020-10-16 12:04:40,318 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:04:38" (2/3) ... [2020-10-16 12:04:40,319 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3c7806da and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 12:04:40, skipping insertion in model container [2020-10-16 12:04:40,319 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 12:04:40" (3/3) ... [2020-10-16 12:04:40,321 INFO L111 eAbstractionObserver]: Analyzing ICFG mix054_pso.opt.i [2020-10-16 12:04:40,332 WARN L153 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-10-16 12:04:40,333 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-16 12:04:40,341 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2020-10-16 12:04:40,342 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-10-16 12:04:40,368 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:04:40,369 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:04:40,369 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:04:40,369 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:04:40,370 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:04:40,370 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:04:40,370 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:04:40,370 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:04:40,370 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:04:40,371 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:04:40,371 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:04:40,372 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:04:40,372 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:04:40,372 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:04:40,373 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:04:40,373 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:04:40,373 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:04:40,373 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:04:40,373 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:04:40,374 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:04:40,374 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:04:40,374 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:04:40,374 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:04:40,374 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:04:40,375 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:04:40,375 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:04:40,375 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:04:40,375 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:04:40,376 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:04:40,376 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:04:40,380 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:04:40,380 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:04:40,380 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:04:40,381 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:04:40,381 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:04:40,381 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:04:40,381 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:04:40,382 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:04:40,382 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:04:40,382 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:04:40,386 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:04:40,386 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:04:40,386 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:04:40,386 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:04:40,387 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:04:40,387 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:04:40,387 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:04:40,387 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:04:40,388 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:04:40,388 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:04:40,388 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:04:40,388 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:04:40,391 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2020-10-16 12:04:40,405 INFO L253 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2020-10-16 12:04:40,427 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-16 12:04:40,427 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-16 12:04:40,428 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-16 12:04:40,428 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-16 12:04:40,428 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-16 12:04:40,428 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-16 12:04:40,428 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-16 12:04:40,428 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-16 12:04:40,441 INFO L137 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2020-10-16 12:04:40,442 INFO L144 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 80 places, 75 transitions, 160 flow [2020-10-16 12:04:40,445 INFO L111 LiptonReduction]: Starting Lipton reduction on Petri net that has 80 places, 75 transitions, 160 flow [2020-10-16 12:04:40,447 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 80 places, 75 transitions, 160 flow [2020-10-16 12:04:40,485 INFO L129 PetriNetUnfolder]: 2/73 cut-off events. [2020-10-16 12:04:40,486 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-10-16 12:04:40,490 INFO L80 FinitePrefix]: Finished finitePrefix Result has 80 conditions, 73 events. 2/73 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 48 event pairs, 0 based on Foata normal form. 0/69 useless extension candidates. Maximal degree in co-relation 45. Up to 2 conditions per place. [2020-10-16 12:04:40,493 INFO L117 LiptonReduction]: Number of co-enabled transitions 888 [2020-10-16 12:04:42,154 WARN L193 SmtUtils]: Spent 1.19 s on a formula simplification. DAG size of input: 224 DAG size of output: 184 [2020-10-16 12:04:42,194 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[3, 2, 5, 3, 2, 2, 1] term [2020-10-16 12:04:42,195 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-10-16 12:04:42,197 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[3, 2, 3, 2, 1] term [2020-10-16 12:04:42,197 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-10-16 12:04:42,957 WARN L193 SmtUtils]: Spent 740.00 ms on a formula simplification. DAG size of input: 139 DAG size of output: 119 [2020-10-16 12:04:43,495 WARN L193 SmtUtils]: Spent 278.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 63 [2020-10-16 12:04:44,305 WARN L193 SmtUtils]: Spent 192.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 79 [2020-10-16 12:04:44,405 INFO L132 LiptonReduction]: Checked pairs total: 2462 [2020-10-16 12:04:44,405 INFO L134 LiptonReduction]: Total number of compositions: 65 [2020-10-16 12:04:44,413 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 28 places, 22 transitions, 54 flow [2020-10-16 12:04:44,439 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 222 states. [2020-10-16 12:04:44,441 INFO L276 IsEmpty]: Start isEmpty. Operand 222 states. [2020-10-16 12:04:44,448 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2020-10-16 12:04:44,449 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 12:04:44,449 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2020-10-16 12:04:44,450 INFO L429 AbstractCegarLoop]: === Iteration 1 === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 12:04:44,456 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 12:04:44,456 INFO L82 PathProgramCache]: Analyzing trace with hash 861621042, now seen corresponding path program 1 times [2020-10-16 12:04:44,468 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 12:04:44,468 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [536098723] [2020-10-16 12:04:44,469 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 12:04:44,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 12:04:44,702 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 12:04:44,703 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [536098723] [2020-10-16 12:04:44,704 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 12:04:44,705 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-10-16 12:04:44,706 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [853882744] [2020-10-16 12:04:44,711 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-16 12:04:44,712 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 12:04:44,728 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-16 12:04:44,729 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-16 12:04:44,731 INFO L87 Difference]: Start difference. First operand 222 states. Second operand 3 states. [2020-10-16 12:04:44,806 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 12:04:44,806 INFO L93 Difference]: Finished difference Result 187 states and 450 transitions. [2020-10-16 12:04:44,807 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-16 12:04:44,809 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 5 [2020-10-16 12:04:44,810 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 12:04:44,823 INFO L225 Difference]: With dead ends: 187 [2020-10-16 12:04:44,823 INFO L226 Difference]: Without dead ends: 137 [2020-10-16 12:04:44,825 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 [2020-10-16 12:04:44,849 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 137 states. [2020-10-16 12:04:44,903 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 137 to 137. [2020-10-16 12:04:44,906 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 137 states. [2020-10-16 12:04:44,911 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 137 states to 137 states and 320 transitions. [2020-10-16 12:04:44,914 INFO L78 Accepts]: Start accepts. Automaton has 137 states and 320 transitions. Word has length 5 [2020-10-16 12:04:44,914 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 12:04:44,914 INFO L481 AbstractCegarLoop]: Abstraction has 137 states and 320 transitions. [2020-10-16 12:04:44,914 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-16 12:04:44,914 INFO L276 IsEmpty]: Start isEmpty. Operand 137 states and 320 transitions. [2020-10-16 12:04:44,915 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-10-16 12:04:44,915 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 12:04:44,915 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 12:04:44,916 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-16 12:04:44,916 INFO L429 AbstractCegarLoop]: === Iteration 2 === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 12:04:44,919 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 12:04:44,919 INFO L82 PathProgramCache]: Analyzing trace with hash 1829495527, now seen corresponding path program 1 times [2020-10-16 12:04:44,920 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 12:04:44,920 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1905310184] [2020-10-16 12:04:44,920 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 12:04:45,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 12:04:45,103 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 12:04:45,104 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1905310184] [2020-10-16 12:04:45,104 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 12:04:45,105 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-16 12:04:45,105 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [608587652] [2020-10-16 12:04:45,107 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-16 12:04:45,107 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 12:04:45,108 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-16 12:04:45,108 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-16 12:04:45,108 INFO L87 Difference]: Start difference. First operand 137 states and 320 transitions. Second operand 5 states. [2020-10-16 12:04:45,205 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 12:04:45,205 INFO L93 Difference]: Finished difference Result 158 states and 350 transitions. [2020-10-16 12:04:45,206 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-16 12:04:45,206 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 8 [2020-10-16 12:04:45,207 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 12:04:45,208 INFO L225 Difference]: With dead ends: 158 [2020-10-16 12:04:45,208 INFO L226 Difference]: Without dead ends: 133 [2020-10-16 12:04:45,209 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-16 12:04:45,211 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 133 states. [2020-10-16 12:04:45,218 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 133 to 133. [2020-10-16 12:04:45,218 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 133 states. [2020-10-16 12:04:45,219 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 133 states to 133 states and 308 transitions. [2020-10-16 12:04:45,219 INFO L78 Accepts]: Start accepts. Automaton has 133 states and 308 transitions. Word has length 8 [2020-10-16 12:04:45,220 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 12:04:45,220 INFO L481 AbstractCegarLoop]: Abstraction has 133 states and 308 transitions. [2020-10-16 12:04:45,220 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-16 12:04:45,220 INFO L276 IsEmpty]: Start isEmpty. Operand 133 states and 308 transitions. [2020-10-16 12:04:45,221 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-10-16 12:04:45,221 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 12:04:45,221 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 12:04:45,222 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-16 12:04:45,222 INFO L429 AbstractCegarLoop]: === Iteration 3 === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 12:04:45,222 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 12:04:45,222 INFO L82 PathProgramCache]: Analyzing trace with hash 879762521, now seen corresponding path program 1 times [2020-10-16 12:04:45,223 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 12:04:45,223 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [621721526] [2020-10-16 12:04:45,223 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 12:04:45,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 12:04:45,469 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 12:04:45,469 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [621721526] [2020-10-16 12:04:45,470 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 12:04:45,470 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-16 12:04:45,470 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1927518626] [2020-10-16 12:04:45,471 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-16 12:04:45,471 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 12:04:45,471 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-16 12:04:45,471 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-16 12:04:45,472 INFO L87 Difference]: Start difference. First operand 133 states and 308 transitions. Second operand 6 states. [2020-10-16 12:04:45,584 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 12:04:45,584 INFO L93 Difference]: Finished difference Result 145 states and 319 transitions. [2020-10-16 12:04:45,585 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-16 12:04:45,586 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 9 [2020-10-16 12:04:45,586 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 12:04:45,588 INFO L225 Difference]: With dead ends: 145 [2020-10-16 12:04:45,588 INFO L226 Difference]: Without dead ends: 125 [2020-10-16 12:04:45,589 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2020-10-16 12:04:45,590 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 125 states. [2020-10-16 12:04:45,596 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 125 to 125. [2020-10-16 12:04:45,597 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 125 states. [2020-10-16 12:04:45,598 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125 states to 125 states and 284 transitions. [2020-10-16 12:04:45,598 INFO L78 Accepts]: Start accepts. Automaton has 125 states and 284 transitions. Word has length 9 [2020-10-16 12:04:45,598 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 12:04:45,598 INFO L481 AbstractCegarLoop]: Abstraction has 125 states and 284 transitions. [2020-10-16 12:04:45,598 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-16 12:04:45,598 INFO L276 IsEmpty]: Start isEmpty. Operand 125 states and 284 transitions. [2020-10-16 12:04:45,599 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-10-16 12:04:45,600 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 12:04:45,600 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 12:04:45,600 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-16 12:04:45,600 INFO L429 AbstractCegarLoop]: === Iteration 4 === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 12:04:45,600 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 12:04:45,601 INFO L82 PathProgramCache]: Analyzing trace with hash 1831308448, now seen corresponding path program 1 times [2020-10-16 12:04:45,601 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 12:04:45,601 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [780146643] [2020-10-16 12:04:45,601 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 12:04:45,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 12:04:45,802 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 12:04:45,803 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [780146643] [2020-10-16 12:04:45,803 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 12:04:45,803 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-16 12:04:45,803 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [771192518] [2020-10-16 12:04:45,804 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-16 12:04:45,804 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 12:04:45,804 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-16 12:04:45,805 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-16 12:04:45,805 INFO L87 Difference]: Start difference. First operand 125 states and 284 transitions. Second operand 6 states. [2020-10-16 12:04:46,012 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 12:04:46,012 INFO L93 Difference]: Finished difference Result 159 states and 350 transitions. [2020-10-16 12:04:46,013 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-16 12:04:46,013 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 10 [2020-10-16 12:04:46,013 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 12:04:46,017 INFO L225 Difference]: With dead ends: 159 [2020-10-16 12:04:46,017 INFO L226 Difference]: Without dead ends: 138 [2020-10-16 12:04:46,017 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-10-16 12:04:46,018 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 138 states. [2020-10-16 12:04:46,026 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 138 to 129. [2020-10-16 12:04:46,027 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 129 states. [2020-10-16 12:04:46,027 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 129 states to 129 states and 286 transitions. [2020-10-16 12:04:46,028 INFO L78 Accepts]: Start accepts. Automaton has 129 states and 286 transitions. Word has length 10 [2020-10-16 12:04:46,028 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 12:04:46,028 INFO L481 AbstractCegarLoop]: Abstraction has 129 states and 286 transitions. [2020-10-16 12:04:46,028 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-16 12:04:46,028 INFO L276 IsEmpty]: Start isEmpty. Operand 129 states and 286 transitions. [2020-10-16 12:04:46,029 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-10-16 12:04:46,030 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 12:04:46,030 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 12:04:46,030 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-16 12:04:46,030 INFO L429 AbstractCegarLoop]: === Iteration 5 === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 12:04:46,031 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 12:04:46,031 INFO L82 PathProgramCache]: Analyzing trace with hash 934694552, now seen corresponding path program 1 times [2020-10-16 12:04:46,031 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 12:04:46,031 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1925619366] [2020-10-16 12:04:46,031 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 12:04:46,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 12:04:46,148 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 12:04:46,149 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1925619366] [2020-10-16 12:04:46,149 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 12:04:46,149 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-16 12:04:46,149 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [14650481] [2020-10-16 12:04:46,150 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-16 12:04:46,150 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 12:04:46,150 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-16 12:04:46,151 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-16 12:04:46,151 INFO L87 Difference]: Start difference. First operand 129 states and 286 transitions. Second operand 7 states. [2020-10-16 12:04:46,384 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 12:04:46,385 INFO L93 Difference]: Finished difference Result 164 states and 360 transitions. [2020-10-16 12:04:46,385 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-16 12:04:46,386 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 11 [2020-10-16 12:04:46,386 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 12:04:46,388 INFO L225 Difference]: With dead ends: 164 [2020-10-16 12:04:46,388 INFO L226 Difference]: Without dead ends: 152 [2020-10-16 12:04:46,389 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2020-10-16 12:04:46,390 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 152 states. [2020-10-16 12:04:46,397 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 152 to 133. [2020-10-16 12:04:46,397 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 133 states. [2020-10-16 12:04:46,398 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 133 states to 133 states and 298 transitions. [2020-10-16 12:04:46,398 INFO L78 Accepts]: Start accepts. Automaton has 133 states and 298 transitions. Word has length 11 [2020-10-16 12:04:46,399 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 12:04:46,399 INFO L481 AbstractCegarLoop]: Abstraction has 133 states and 298 transitions. [2020-10-16 12:04:46,399 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-16 12:04:46,399 INFO L276 IsEmpty]: Start isEmpty. Operand 133 states and 298 transitions. [2020-10-16 12:04:46,400 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-10-16 12:04:46,401 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 12:04:46,401 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 12:04:46,401 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-16 12:04:46,401 INFO L429 AbstractCegarLoop]: === Iteration 6 === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 12:04:46,402 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 12:04:46,402 INFO L82 PathProgramCache]: Analyzing trace with hash 1059908610, now seen corresponding path program 2 times [2020-10-16 12:04:46,402 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 12:04:46,403 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [960473039] [2020-10-16 12:04:46,403 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 12:04:46,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 12:04:46,518 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 12:04:46,518 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [960473039] [2020-10-16 12:04:46,519 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 12:04:46,519 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-16 12:04:46,519 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [257140631] [2020-10-16 12:04:46,520 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-16 12:04:46,521 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 12:04:46,521 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-16 12:04:46,522 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-10-16 12:04:46,522 INFO L87 Difference]: Start difference. First operand 133 states and 298 transitions. Second operand 6 states. [2020-10-16 12:04:46,643 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 12:04:46,643 INFO L93 Difference]: Finished difference Result 153 states and 331 transitions. [2020-10-16 12:04:46,644 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-16 12:04:46,644 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 11 [2020-10-16 12:04:46,645 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 12:04:46,647 INFO L225 Difference]: With dead ends: 153 [2020-10-16 12:04:46,647 INFO L226 Difference]: Without dead ends: 139 [2020-10-16 12:04:46,648 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56 [2020-10-16 12:04:46,649 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 139 states. [2020-10-16 12:04:46,669 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 139 to 125. [2020-10-16 12:04:46,669 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 125 states. [2020-10-16 12:04:46,670 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125 states to 125 states and 275 transitions. [2020-10-16 12:04:46,670 INFO L78 Accepts]: Start accepts. Automaton has 125 states and 275 transitions. Word has length 11 [2020-10-16 12:04:46,670 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 12:04:46,671 INFO L481 AbstractCegarLoop]: Abstraction has 125 states and 275 transitions. [2020-10-16 12:04:46,671 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-16 12:04:46,671 INFO L276 IsEmpty]: Start isEmpty. Operand 125 states and 275 transitions. [2020-10-16 12:04:46,672 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-10-16 12:04:46,672 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 12:04:46,672 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 12:04:46,673 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-16 12:04:46,673 INFO L429 AbstractCegarLoop]: === Iteration 7 === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 12:04:46,673 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 12:04:46,673 INFO L82 PathProgramCache]: Analyzing trace with hash -657848166, now seen corresponding path program 1 times [2020-10-16 12:04:46,673 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 12:04:46,674 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1234344495] [2020-10-16 12:04:46,674 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 12:04:46,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 12:04:46,797 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 12:04:46,798 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1234344495] [2020-10-16 12:04:46,798 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 12:04:46,798 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-16 12:04:46,799 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [280379340] [2020-10-16 12:04:46,802 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-16 12:04:46,803 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 12:04:46,803 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-16 12:04:46,803 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-16 12:04:46,804 INFO L87 Difference]: Start difference. First operand 125 states and 275 transitions. Second operand 4 states. [2020-10-16 12:04:46,836 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 12:04:46,836 INFO L93 Difference]: Finished difference Result 104 states and 193 transitions. [2020-10-16 12:04:46,838 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-16 12:04:46,838 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2020-10-16 12:04:46,838 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 12:04:46,839 INFO L225 Difference]: With dead ends: 104 [2020-10-16 12:04:46,839 INFO L226 Difference]: Without dead ends: 77 [2020-10-16 12:04:46,840 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-16 12:04:46,841 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77 states. [2020-10-16 12:04:46,843 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77 to 77. [2020-10-16 12:04:46,843 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 77 states. [2020-10-16 12:04:46,844 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 77 states and 133 transitions. [2020-10-16 12:04:46,844 INFO L78 Accepts]: Start accepts. Automaton has 77 states and 133 transitions. Word has length 11 [2020-10-16 12:04:46,844 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 12:04:46,844 INFO L481 AbstractCegarLoop]: Abstraction has 77 states and 133 transitions. [2020-10-16 12:04:46,844 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-16 12:04:46,844 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 133 transitions. [2020-10-16 12:04:46,848 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-10-16 12:04:46,849 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 12:04:46,849 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 12:04:46,849 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-16 12:04:46,849 INFO L429 AbstractCegarLoop]: === Iteration 8 === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 12:04:46,849 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 12:04:46,850 INFO L82 PathProgramCache]: Analyzing trace with hash 1314571888, now seen corresponding path program 1 times [2020-10-16 12:04:46,850 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 12:04:46,851 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1216524992] [2020-10-16 12:04:46,851 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 12:04:46,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 12:04:46,975 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 12:04:46,975 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1216524992] [2020-10-16 12:04:46,975 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 12:04:46,976 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-16 12:04:46,976 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2096053816] [2020-10-16 12:04:46,976 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-16 12:04:46,977 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 12:04:46,977 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-16 12:04:46,977 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-16 12:04:46,977 INFO L87 Difference]: Start difference. First operand 77 states and 133 transitions. Second operand 5 states. [2020-10-16 12:04:47,006 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 12:04:47,006 INFO L93 Difference]: Finished difference Result 53 states and 85 transitions. [2020-10-16 12:04:47,007 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-16 12:04:47,007 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 12 [2020-10-16 12:04:47,007 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 12:04:47,008 INFO L225 Difference]: With dead ends: 53 [2020-10-16 12:04:47,008 INFO L226 Difference]: Without dead ends: 43 [2020-10-16 12:04:47,008 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-10-16 12:04:47,009 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2020-10-16 12:04:47,010 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 41. [2020-10-16 12:04:47,010 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 41 states. [2020-10-16 12:04:47,010 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 64 transitions. [2020-10-16 12:04:47,011 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 64 transitions. Word has length 12 [2020-10-16 12:04:47,011 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 12:04:47,011 INFO L481 AbstractCegarLoop]: Abstraction has 41 states and 64 transitions. [2020-10-16 12:04:47,011 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-16 12:04:47,011 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 64 transitions. [2020-10-16 12:04:47,012 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-10-16 12:04:47,012 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 12:04:47,012 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 12:04:47,012 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-16 12:04:47,012 INFO L429 AbstractCegarLoop]: === Iteration 9 === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 12:04:47,013 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 12:04:47,013 INFO L82 PathProgramCache]: Analyzing trace with hash -299715963, now seen corresponding path program 1 times [2020-10-16 12:04:47,013 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 12:04:47,013 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [790984502] [2020-10-16 12:04:47,014 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 12:04:47,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 12:04:47,162 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 12:04:47,163 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [790984502] [2020-10-16 12:04:47,163 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 12:04:47,163 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-16 12:04:47,164 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2116463390] [2020-10-16 12:04:47,164 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-16 12:04:47,164 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 12:04:47,165 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-16 12:04:47,165 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-10-16 12:04:47,165 INFO L87 Difference]: Start difference. First operand 41 states and 64 transitions. Second operand 7 states. [2020-10-16 12:04:47,319 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 12:04:47,319 INFO L93 Difference]: Finished difference Result 60 states and 91 transitions. [2020-10-16 12:04:47,319 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-16 12:04:47,320 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 16 [2020-10-16 12:04:47,320 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 12:04:47,320 INFO L225 Difference]: With dead ends: 60 [2020-10-16 12:04:47,320 INFO L226 Difference]: Without dead ends: 29 [2020-10-16 12:04:47,321 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2020-10-16 12:04:47,321 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2020-10-16 12:04:47,322 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 29. [2020-10-16 12:04:47,322 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29 states. [2020-10-16 12:04:47,323 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 40 transitions. [2020-10-16 12:04:47,323 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 40 transitions. Word has length 16 [2020-10-16 12:04:47,323 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 12:04:47,323 INFO L481 AbstractCegarLoop]: Abstraction has 29 states and 40 transitions. [2020-10-16 12:04:47,323 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-16 12:04:47,324 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 40 transitions. [2020-10-16 12:04:47,324 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-10-16 12:04:47,324 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 12:04:47,324 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 12:04:47,324 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-16 12:04:47,325 INFO L429 AbstractCegarLoop]: === Iteration 10 === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 12:04:47,325 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 12:04:47,325 INFO L82 PathProgramCache]: Analyzing trace with hash 1056418205, now seen corresponding path program 2 times [2020-10-16 12:04:47,325 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 12:04:47,326 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [524391396] [2020-10-16 12:04:47,326 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 12:04:47,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 12:04:47,434 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 12:04:47,435 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [524391396] [2020-10-16 12:04:47,435 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 12:04:47,435 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-16 12:04:47,436 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1155329761] [2020-10-16 12:04:47,436 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-16 12:04:47,436 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 12:04:47,437 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-16 12:04:47,437 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2020-10-16 12:04:47,437 INFO L87 Difference]: Start difference. First operand 29 states and 40 transitions. Second operand 7 states. [2020-10-16 12:04:47,493 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 12:04:47,493 INFO L93 Difference]: Finished difference Result 44 states and 60 transitions. [2020-10-16 12:04:47,493 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-16 12:04:47,494 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 16 [2020-10-16 12:04:47,494 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 12:04:47,494 INFO L225 Difference]: With dead ends: 44 [2020-10-16 12:04:47,494 INFO L226 Difference]: Without dead ends: 25 [2020-10-16 12:04:47,495 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2020-10-16 12:04:47,495 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2020-10-16 12:04:47,496 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 25. [2020-10-16 12:04:47,496 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25 states. [2020-10-16 12:04:47,496 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 32 transitions. [2020-10-16 12:04:47,497 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 32 transitions. Word has length 16 [2020-10-16 12:04:47,497 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 12:04:47,497 INFO L481 AbstractCegarLoop]: Abstraction has 25 states and 32 transitions. [2020-10-16 12:04:47,498 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-16 12:04:47,498 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 32 transitions. [2020-10-16 12:04:47,498 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-10-16 12:04:47,498 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 12:04:47,498 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 12:04:47,499 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-16 12:04:47,499 INFO L429 AbstractCegarLoop]: === Iteration 11 === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 12:04:47,499 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 12:04:47,499 INFO L82 PathProgramCache]: Analyzing trace with hash -869615873, now seen corresponding path program 3 times [2020-10-16 12:04:47,499 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 12:04:47,500 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [416232900] [2020-10-16 12:04:47,500 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 12:04:47,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 12:04:47,723 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 12:04:47,723 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [416232900] [2020-10-16 12:04:47,723 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 12:04:47,724 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-16 12:04:47,724 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1138890987] [2020-10-16 12:04:47,724 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-16 12:04:47,724 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 12:04:47,725 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-16 12:04:47,725 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-16 12:04:47,725 INFO L87 Difference]: Start difference. First operand 25 states and 32 transitions. Second operand 8 states. [2020-10-16 12:04:47,860 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 12:04:47,860 INFO L93 Difference]: Finished difference Result 34 states and 42 transitions. [2020-10-16 12:04:47,861 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-16 12:04:47,861 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 16 [2020-10-16 12:04:47,861 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 12:04:47,861 INFO L225 Difference]: With dead ends: 34 [2020-10-16 12:04:47,862 INFO L226 Difference]: Without dead ends: 21 [2020-10-16 12:04:47,862 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2020-10-16 12:04:47,862 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2020-10-16 12:04:47,863 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 21. [2020-10-16 12:04:47,863 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2020-10-16 12:04:47,864 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 24 transitions. [2020-10-16 12:04:47,864 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 24 transitions. Word has length 16 [2020-10-16 12:04:47,864 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 12:04:47,864 INFO L481 AbstractCegarLoop]: Abstraction has 21 states and 24 transitions. [2020-10-16 12:04:47,864 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-16 12:04:47,864 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 24 transitions. [2020-10-16 12:04:47,865 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-10-16 12:04:47,865 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 12:04:47,865 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 12:04:47,865 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-16 12:04:47,865 INFO L429 AbstractCegarLoop]: === Iteration 12 === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 12:04:47,866 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 12:04:47,866 INFO L82 PathProgramCache]: Analyzing trace with hash 1239204549, now seen corresponding path program 4 times [2020-10-16 12:04:47,866 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 12:04:47,866 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1778532231] [2020-10-16 12:04:47,867 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 12:04:47,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-16 12:04:47,901 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-16 12:04:47,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-16 12:04:47,933 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-16 12:04:47,963 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-16 12:04:47,964 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-16 12:04:47,964 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-16 12:04:47,979 WARN L219 RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented. [2020-10-16 12:04:47,979 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-16 12:04:47,980 WARN L219 RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented. [2020-10-16 12:04:47,981 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-16 12:04:47,981 WARN L219 RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented. [2020-10-16 12:04:47,981 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-16 12:04:47,981 WARN L219 RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented. [2020-10-16 12:04:47,981 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-16 12:04:47,982 WARN L219 RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented. [2020-10-16 12:04:47,982 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-16 12:04:47,982 WARN L219 RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented. [2020-10-16 12:04:47,982 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-16 12:04:47,983 WARN L219 RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented. [2020-10-16 12:04:47,983 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-16 12:04:47,983 WARN L219 RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented. [2020-10-16 12:04:47,983 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-16 12:04:47,983 WARN L219 RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented. [2020-10-16 12:04:47,984 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-16 12:04:47,984 WARN L219 RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented. [2020-10-16 12:04:47,984 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-16 12:04:47,984 WARN L219 RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented. [2020-10-16 12:04:47,984 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-16 12:04:47,984 WARN L219 RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented. [2020-10-16 12:04:47,985 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-16 12:04:47,985 WARN L219 RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented. [2020-10-16 12:04:47,985 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-16 12:04:47,986 WARN L219 RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented. [2020-10-16 12:04:47,986 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-16 12:04:47,986 WARN L219 RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented. [2020-10-16 12:04:47,986 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-16 12:04:47,986 WARN L219 RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented. [2020-10-16 12:04:47,987 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-16 12:04:47,987 WARN L219 RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented. [2020-10-16 12:04:47,987 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-16 12:04:47,987 WARN L219 RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented. [2020-10-16 12:04:47,987 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-16 12:04:47,988 WARN L219 RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented. [2020-10-16 12:04:47,988 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-16 12:04:47,988 WARN L219 RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented. [2020-10-16 12:04:47,988 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-16 12:04:47,988 WARN L219 RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented. [2020-10-16 12:04:47,989 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-16 12:04:47,989 WARN L219 RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented. [2020-10-16 12:04:47,989 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-16 12:04:47,989 WARN L219 RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented. [2020-10-16 12:04:47,989 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-16 12:04:47,990 WARN L219 RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented. [2020-10-16 12:04:47,990 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-16 12:04:47,990 WARN L219 RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented. [2020-10-16 12:04:47,990 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-16 12:04:47,990 WARN L219 RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented. [2020-10-16 12:04:47,990 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-16 12:04:47,991 WARN L219 RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented. [2020-10-16 12:04:47,991 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-16 12:04:47,991 WARN L219 RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented. [2020-10-16 12:04:47,991 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-16 12:04:47,991 WARN L219 RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented. [2020-10-16 12:04:47,991 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-16 12:04:48,058 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.10 12:04:48 BasicIcfg [2020-10-16 12:04:48,059 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-16 12:04:48,061 INFO L168 Benchmark]: Toolchain (without parser) took 10662.45 ms. Allocated memory was 141.0 MB in the beginning and 313.5 MB in the end (delta: 172.5 MB). Free memory was 102.5 MB in the beginning and 165.6 MB in the end (delta: -63.0 MB). Peak memory consumption was 109.4 MB. Max. memory is 7.1 GB. [2020-10-16 12:04:48,062 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 141.0 MB. Free memory was 122.6 MB in the beginning and 122.4 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. [2020-10-16 12:04:48,066 INFO L168 Benchmark]: CACSL2BoogieTranslator took 823.28 ms. Allocated memory was 141.0 MB in the beginning and 206.0 MB in the end (delta: 65.0 MB). Free memory was 102.3 MB in the beginning and 158.7 MB in the end (delta: -56.4 MB). Peak memory consumption was 23.0 MB. Max. memory is 7.1 GB. [2020-10-16 12:04:48,066 INFO L168 Benchmark]: Boogie Procedure Inliner took 68.15 ms. Allocated memory is still 206.0 MB. Free memory was 158.1 MB in the beginning and 155.4 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.6 MB. Max. memory is 7.1 GB. [2020-10-16 12:04:48,067 INFO L168 Benchmark]: Boogie Preprocessor took 44.17 ms. Allocated memory is still 206.0 MB. Free memory was 155.4 MB in the beginning and 153.4 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. [2020-10-16 12:04:48,068 INFO L168 Benchmark]: RCFGBuilder took 1975.02 ms. Allocated memory was 206.0 MB in the beginning and 244.8 MB in the end (delta: 38.8 MB). Free memory was 152.8 MB in the beginning and 188.9 MB in the end (delta: -36.2 MB). Peak memory consumption was 95.3 MB. Max. memory is 7.1 GB. [2020-10-16 12:04:48,070 INFO L168 Benchmark]: TraceAbstraction took 7745.84 ms. Allocated memory was 244.8 MB in the beginning and 313.5 MB in the end (delta: 68.7 MB). Free memory was 187.2 MB in the beginning and 165.6 MB in the end (delta: 21.6 MB). Peak memory consumption was 90.3 MB. Max. memory is 7.1 GB. [2020-10-16 12:04:48,075 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 141.0 MB. Free memory was 122.6 MB in the beginning and 122.4 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 823.28 ms. Allocated memory was 141.0 MB in the beginning and 206.0 MB in the end (delta: 65.0 MB). Free memory was 102.3 MB in the beginning and 158.7 MB in the end (delta: -56.4 MB). Peak memory consumption was 23.0 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 68.15 ms. Allocated memory is still 206.0 MB. Free memory was 158.1 MB in the beginning and 155.4 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.6 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 44.17 ms. Allocated memory is still 206.0 MB. Free memory was 155.4 MB in the beginning and 153.4 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1975.02 ms. Allocated memory was 206.0 MB in the beginning and 244.8 MB in the end (delta: 38.8 MB). Free memory was 152.8 MB in the beginning and 188.9 MB in the end (delta: -36.2 MB). Peak memory consumption was 95.3 MB. Max. memory is 7.1 GB. * TraceAbstraction took 7745.84 ms. Allocated memory was 244.8 MB in the beginning and 313.5 MB in the end (delta: 68.7 MB). Free memory was 187.2 MB in the beginning and 165.6 MB in the end (delta: 21.6 MB). Peak memory consumption was 90.3 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 429 VarBasedMoverChecksPositive, 19 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 0 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 40 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 3.9s, 80 PlacesBefore, 28 PlacesAfterwards, 75 TransitionsBefore, 22 TransitionsAfterwards, 888 CoEnabledTransitionPairs, 6 FixpointIterations, 28 TrivialSequentialCompositions, 31 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 5 ConcurrentYvCompositions, 1 ChoiceCompositions, 65 TotalNumberOfCompositions, 2462 MoverChecksTotal - CounterExampleResult [Line: 7]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L697] 0 int __unbuffered_cnt = 0; [L699] 0 int __unbuffered_p1_EAX = 0; [L700] 0 _Bool main$tmp_guard0; [L701] 0 _Bool main$tmp_guard1; [L703] 0 int x = 0; [L704] 0 _Bool x$flush_delayed; [L705] 0 int x$mem_tmp; [L706] 0 _Bool x$r_buff0_thd0; [L707] 0 _Bool x$r_buff0_thd1; [L708] 0 _Bool x$r_buff0_thd2; [L709] 0 _Bool x$r_buff1_thd0; [L710] 0 _Bool x$r_buff1_thd1; [L711] 0 _Bool x$r_buff1_thd2; [L712] 0 _Bool x$read_delayed; [L713] 0 int *x$read_delayed_var; [L714] 0 int x$w_buff0; [L715] 0 _Bool x$w_buff0_used; [L716] 0 int x$w_buff1; [L717] 0 _Bool x$w_buff1_used; [L719] 0 int y = 0; [L720] 0 _Bool weak$$choice0; [L721] 0 _Bool weak$$choice2; [L781] 0 pthread_t t1447; [L782] FCALL, FORK 0 pthread_create(&t1447, ((void *)0), P0, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=0, x$w_buff0_used=0, x$w_buff1=0, x$w_buff1_used=0, y=0] [L783] 0 pthread_t t1448; [L784] FCALL, FORK 0 pthread_create(&t1448, ((void *)0), P1, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=0, x$w_buff0_used=0, x$w_buff1=0, x$w_buff1_used=0, y=0] [L745] 2 x$w_buff1 = x$w_buff0 [L746] 2 x$w_buff0 = 2 [L747] 2 x$w_buff1_used = x$w_buff0_used [L748] 2 x$w_buff0_used = (_Bool)1 [L7] COND TRUE 2 !expression [L7] 2 __VERIFIER_error() [L750] 2 x$r_buff1_thd0 = x$r_buff0_thd0 [L751] 2 x$r_buff1_thd1 = x$r_buff0_thd1 [L752] 2 x$r_buff1_thd2 = x$r_buff0_thd2 [L753] 2 x$r_buff0_thd2 = (_Bool)1 VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=2, x$w_buff0_used=1, x$w_buff1=0, x$w_buff1_used=0, y=0] [L756] 2 __unbuffered_p1_EAX = y VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=2, x$w_buff0_used=1, x$w_buff1=0, x$w_buff1_used=0, y=0] [L725] 1 y = 1 VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=2, x$w_buff0_used=1, x$w_buff1=0, x$w_buff1_used=0, y=1] [L728] 1 x = 1 VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=1, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=2, x$w_buff0_used=1, x$w_buff1=0, x$w_buff1_used=0, y=1] [L759] EXPR 2 x$w_buff0_used && x$r_buff0_thd2 ? x$w_buff0 : (x$w_buff1_used && x$r_buff1_thd2 ? x$w_buff1 : x) [L759] 2 x = x$w_buff0_used && x$r_buff0_thd2 ? x$w_buff0 : (x$w_buff1_used && x$r_buff1_thd2 ? x$w_buff1 : x) [L760] EXPR 2 x$w_buff0_used && x$r_buff0_thd2 ? (_Bool)0 : x$w_buff0_used [L760] 2 x$w_buff0_used = x$w_buff0_used && x$r_buff0_thd2 ? (_Bool)0 : x$w_buff0_used [L761] EXPR 2 x$w_buff0_used && x$r_buff0_thd2 || x$w_buff1_used && x$r_buff1_thd2 ? (_Bool)0 : x$w_buff1_used [L761] 2 x$w_buff1_used = x$w_buff0_used && x$r_buff0_thd2 || x$w_buff1_used && x$r_buff1_thd2 ? (_Bool)0 : x$w_buff1_used [L762] EXPR 2 x$w_buff0_used && x$r_buff0_thd2 ? (_Bool)0 : x$r_buff0_thd2 [L762] 2 x$r_buff0_thd2 = x$w_buff0_used && x$r_buff0_thd2 ? (_Bool)0 : x$r_buff0_thd2 [L763] EXPR 2 x$w_buff0_used && x$r_buff0_thd2 || x$w_buff1_used && x$r_buff1_thd2 ? (_Bool)0 : x$r_buff1_thd2 [L763] 2 x$r_buff1_thd2 = x$w_buff0_used && x$r_buff0_thd2 || x$w_buff1_used && x$r_buff1_thd2 ? (_Bool)0 : x$r_buff1_thd2 [L766] 2 __unbuffered_cnt = __unbuffered_cnt + 1 [L768] 2 return 0; [L731] EXPR 1 x$w_buff0_used && x$r_buff0_thd1 ? x$w_buff0 : (x$w_buff1_used && x$r_buff1_thd1 ? x$w_buff1 : x) [L731] EXPR 1 x$w_buff1_used && x$r_buff1_thd1 ? x$w_buff1 : x [L731] EXPR 1 x$w_buff0_used && x$r_buff0_thd1 ? x$w_buff0 : (x$w_buff1_used && x$r_buff1_thd1 ? x$w_buff1 : x) [L731] 1 x = x$w_buff0_used && x$r_buff0_thd1 ? x$w_buff0 : (x$w_buff1_used && x$r_buff1_thd1 ? x$w_buff1 : x) [L732] EXPR 1 x$w_buff0_used && x$r_buff0_thd1 ? (_Bool)0 : x$w_buff0_used [L732] 1 x$w_buff0_used = x$w_buff0_used && x$r_buff0_thd1 ? (_Bool)0 : x$w_buff0_used [L733] EXPR 1 x$w_buff0_used && x$r_buff0_thd1 || x$w_buff1_used && x$r_buff1_thd1 ? (_Bool)0 : x$w_buff1_used [L733] 1 x$w_buff1_used = x$w_buff0_used && x$r_buff0_thd1 || x$w_buff1_used && x$r_buff1_thd1 ? (_Bool)0 : x$w_buff1_used [L734] EXPR 1 x$w_buff0_used && x$r_buff0_thd1 ? (_Bool)0 : x$r_buff0_thd1 [L734] 1 x$r_buff0_thd1 = x$w_buff0_used && x$r_buff0_thd1 ? (_Bool)0 : x$r_buff0_thd1 [L735] EXPR 1 x$w_buff0_used && x$r_buff0_thd1 || x$w_buff1_used && x$r_buff1_thd1 ? (_Bool)0 : x$r_buff1_thd1 [L735] 1 x$r_buff1_thd1 = x$w_buff0_used && x$r_buff0_thd1 || x$w_buff1_used && x$r_buff1_thd1 ? (_Bool)0 : x$r_buff1_thd1 [L738] 1 __unbuffered_cnt = __unbuffered_cnt + 1 [L740] 1 return 0; [L786] 0 main$tmp_guard0 = __unbuffered_cnt == 2 VAL [\result={0:0}, __unbuffered_cnt=2, __unbuffered_p1_EAX=0, arg={0:0}, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=2, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=2, x$w_buff0_used=0, x$w_buff1=0, x$w_buff1_used=0, y=1] [L3] COND FALSE 0 !(!cond) [L790] EXPR 0 x$w_buff0_used && x$r_buff0_thd0 ? x$w_buff0 : (x$w_buff1_used && x$r_buff1_thd0 ? x$w_buff1 : x) [L790] 0 x = x$w_buff0_used && x$r_buff0_thd0 ? x$w_buff0 : (x$w_buff1_used && x$r_buff1_thd0 ? x$w_buff1 : x) [L791] EXPR 0 x$w_buff0_used && x$r_buff0_thd0 ? (_Bool)0 : x$w_buff0_used [L791] 0 x$w_buff0_used = x$w_buff0_used && x$r_buff0_thd0 ? (_Bool)0 : x$w_buff0_used [L792] EXPR 0 x$w_buff0_used && x$r_buff0_thd0 || x$w_buff1_used && x$r_buff1_thd0 ? (_Bool)0 : x$w_buff1_used [L792] 0 x$w_buff1_used = x$w_buff0_used && x$r_buff0_thd0 || x$w_buff1_used && x$r_buff1_thd0 ? (_Bool)0 : x$w_buff1_used [L793] EXPR 0 x$w_buff0_used && x$r_buff0_thd0 ? (_Bool)0 : x$r_buff0_thd0 [L793] 0 x$r_buff0_thd0 = x$w_buff0_used && x$r_buff0_thd0 ? (_Bool)0 : x$r_buff0_thd0 [L794] EXPR 0 x$w_buff0_used && x$r_buff0_thd0 || x$w_buff1_used && x$r_buff1_thd0 ? (_Bool)0 : x$r_buff1_thd0 [L794] 0 x$r_buff1_thd0 = x$w_buff0_used && x$r_buff0_thd0 || x$w_buff1_used && x$r_buff1_thd0 ? (_Bool)0 : x$r_buff1_thd0 [L797] 0 weak$$choice0 = __VERIFIER_nondet_bool() [L798] 0 weak$$choice2 = __VERIFIER_nondet_bool() [L799] 0 x$flush_delayed = weak$$choice2 [L800] 0 x$mem_tmp = x [L801] EXPR 0 !x$w_buff0_used || !x$r_buff0_thd0 && !x$w_buff1_used || !x$r_buff0_thd0 && !x$r_buff1_thd0 ? x : (x$w_buff0_used && x$r_buff0_thd0 ? x$w_buff0 : x$w_buff1) [L801] 0 x = !x$w_buff0_used || !x$r_buff0_thd0 && !x$w_buff1_used || !x$r_buff0_thd0 && !x$r_buff1_thd0 ? x : (x$w_buff0_used && x$r_buff0_thd0 ? x$w_buff0 : x$w_buff1) [L802] EXPR 0 weak$$choice2 ? x$w_buff0 : (!x$w_buff0_used || !x$r_buff0_thd0 && !x$w_buff1_used || !x$r_buff0_thd0 && !x$r_buff1_thd0 ? x$w_buff0 : (x$w_buff0_used && x$r_buff0_thd0 ? x$w_buff0 : x$w_buff0)) [L802] 0 x$w_buff0 = weak$$choice2 ? x$w_buff0 : (!x$w_buff0_used || !x$r_buff0_thd0 && !x$w_buff1_used || !x$r_buff0_thd0 && !x$r_buff1_thd0 ? x$w_buff0 : (x$w_buff0_used && x$r_buff0_thd0 ? x$w_buff0 : x$w_buff0)) [L803] EXPR 0 weak$$choice2 ? x$w_buff1 : (!x$w_buff0_used || !x$r_buff0_thd0 && !x$w_buff1_used || !x$r_buff0_thd0 && !x$r_buff1_thd0 ? x$w_buff1 : (x$w_buff0_used && x$r_buff0_thd0 ? x$w_buff1 : x$w_buff1)) [L803] EXPR 0 !x$w_buff0_used || !x$r_buff0_thd0 && !x$w_buff1_used || !x$r_buff0_thd0 && !x$r_buff1_thd0 ? x$w_buff1 : (x$w_buff0_used && x$r_buff0_thd0 ? x$w_buff1 : x$w_buff1) [L803] EXPR 0 weak$$choice2 ? x$w_buff1 : (!x$w_buff0_used || !x$r_buff0_thd0 && !x$w_buff1_used || !x$r_buff0_thd0 && !x$r_buff1_thd0 ? x$w_buff1 : (x$w_buff0_used && x$r_buff0_thd0 ? x$w_buff1 : x$w_buff1)) [L803] 0 x$w_buff1 = weak$$choice2 ? x$w_buff1 : (!x$w_buff0_used || !x$r_buff0_thd0 && !x$w_buff1_used || !x$r_buff0_thd0 && !x$r_buff1_thd0 ? x$w_buff1 : (x$w_buff0_used && x$r_buff0_thd0 ? x$w_buff1 : x$w_buff1)) [L804] EXPR 0 weak$$choice2 ? x$w_buff0_used : (!x$w_buff0_used || !x$r_buff0_thd0 && !x$w_buff1_used || !x$r_buff0_thd0 && !x$r_buff1_thd0 ? x$w_buff0_used : (x$w_buff0_used && x$r_buff0_thd0 ? (_Bool)0 : x$w_buff0_used)) [L804] 0 x$w_buff0_used = weak$$choice2 ? x$w_buff0_used : (!x$w_buff0_used || !x$r_buff0_thd0 && !x$w_buff1_used || !x$r_buff0_thd0 && !x$r_buff1_thd0 ? x$w_buff0_used : (x$w_buff0_used && x$r_buff0_thd0 ? (_Bool)0 : x$w_buff0_used)) [L805] EXPR 0 weak$$choice2 ? x$w_buff1_used : (!x$w_buff0_used || !x$r_buff0_thd0 && !x$w_buff1_used || !x$r_buff0_thd0 && !x$r_buff1_thd0 ? x$w_buff1_used : (x$w_buff0_used && x$r_buff0_thd0 ? (_Bool)0 : (_Bool)0)) [L805] 0 x$w_buff1_used = weak$$choice2 ? x$w_buff1_used : (!x$w_buff0_used || !x$r_buff0_thd0 && !x$w_buff1_used || !x$r_buff0_thd0 && !x$r_buff1_thd0 ? x$w_buff1_used : (x$w_buff0_used && x$r_buff0_thd0 ? (_Bool)0 : (_Bool)0)) [L806] EXPR 0 weak$$choice2 ? x$r_buff0_thd0 : (!x$w_buff0_used || !x$r_buff0_thd0 && !x$w_buff1_used || !x$r_buff0_thd0 && !x$r_buff1_thd0 ? x$r_buff0_thd0 : (x$w_buff0_used && x$r_buff0_thd0 ? (_Bool)0 : x$r_buff0_thd0)) [L806] EXPR 0 !x$w_buff0_used || !x$r_buff0_thd0 && !x$w_buff1_used || !x$r_buff0_thd0 && !x$r_buff1_thd0 ? x$r_buff0_thd0 : (x$w_buff0_used && x$r_buff0_thd0 ? (_Bool)0 : x$r_buff0_thd0) [L806] EXPR 0 weak$$choice2 ? x$r_buff0_thd0 : (!x$w_buff0_used || !x$r_buff0_thd0 && !x$w_buff1_used || !x$r_buff0_thd0 && !x$r_buff1_thd0 ? x$r_buff0_thd0 : (x$w_buff0_used && x$r_buff0_thd0 ? (_Bool)0 : x$r_buff0_thd0)) [L806] 0 x$r_buff0_thd0 = weak$$choice2 ? x$r_buff0_thd0 : (!x$w_buff0_used || !x$r_buff0_thd0 && !x$w_buff1_used || !x$r_buff0_thd0 && !x$r_buff1_thd0 ? x$r_buff0_thd0 : (x$w_buff0_used && x$r_buff0_thd0 ? (_Bool)0 : x$r_buff0_thd0)) [L807] EXPR 0 weak$$choice2 ? x$r_buff1_thd0 : (!x$w_buff0_used || !x$r_buff0_thd0 && !x$w_buff1_used || !x$r_buff0_thd0 && !x$r_buff1_thd0 ? x$r_buff1_thd0 : (x$w_buff0_used && x$r_buff0_thd0 ? (_Bool)0 : (_Bool)0)) [L807] EXPR 0 !x$w_buff0_used || !x$r_buff0_thd0 && !x$w_buff1_used || !x$r_buff0_thd0 && !x$r_buff1_thd0 ? x$r_buff1_thd0 : (x$w_buff0_used && x$r_buff0_thd0 ? (_Bool)0 : (_Bool)0) [L807] EXPR 0 x$w_buff0_used && x$r_buff0_thd0 ? (_Bool)0 : (_Bool)0 [L807] EXPR 0 !x$w_buff0_used || !x$r_buff0_thd0 && !x$w_buff1_used || !x$r_buff0_thd0 && !x$r_buff1_thd0 ? x$r_buff1_thd0 : (x$w_buff0_used && x$r_buff0_thd0 ? (_Bool)0 : (_Bool)0) [L807] EXPR 0 weak$$choice2 ? x$r_buff1_thd0 : (!x$w_buff0_used || !x$r_buff0_thd0 && !x$w_buff1_used || !x$r_buff0_thd0 && !x$r_buff1_thd0 ? x$r_buff1_thd0 : (x$w_buff0_used && x$r_buff0_thd0 ? (_Bool)0 : (_Bool)0)) [L807] 0 x$r_buff1_thd0 = weak$$choice2 ? x$r_buff1_thd0 : (!x$w_buff0_used || !x$r_buff0_thd0 && !x$w_buff1_used || !x$r_buff0_thd0 && !x$r_buff1_thd0 ? x$r_buff1_thd0 : (x$w_buff0_used && x$r_buff0_thd0 ? (_Bool)0 : (_Bool)0)) [L808] 0 main$tmp_guard1 = !(x == 2 && __unbuffered_p1_EAX == 0) [L809] EXPR 0 x$flush_delayed ? x$mem_tmp : x [L809] 0 x = x$flush_delayed ? x$mem_tmp : x [L810] 0 x$flush_delayed = (_Bool)0 [L7] COND TRUE 0 !expression [L7] 0 __VERIFIER_error() VAL [\result={0:0}, __unbuffered_cnt=2, __unbuffered_p1_EAX=0, arg={0:0}, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, weak$$choice0=6, weak$$choice2=255, x=2, x$flush_delayed=0, x$mem_tmp=2, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=2, x$w_buff0_used=0, x$w_buff1=0, x$w_buff1_used=0, y=1] - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 74 locations, 2 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 7.5s, OverallIterations: 12, TraceHistogramMax: 1, AutomataDifference: 1.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 4.0s, HoareTripleCheckerStatistics: 187 SDtfs, 254 SDslu, 369 SDs, 0 SdLazy, 300 SolverSat, 104 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 67 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 62 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=222occurred 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, 11 MinimizatonAttempts, 44 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 1.1s InterpolantComputationTime, 141 NumberOfCodeBlocks, 141 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 114 ConstructedInterpolants, 0 QuantifiedInterpolants, 10974 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 11 InterpolantComputations, 11 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 incorrect! Received shutdown request...