/usr/bin/java -Xmx16000000000 -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/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/pthread-wmm/mix042_tso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-11af1e5 [2020-10-11 14:51:51,236 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-11 14:51:51,239 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-11 14:51:51,264 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-11 14:51:51,265 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-11 14:51:51,266 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-11 14:51:51,267 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-11 14:51:51,269 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-11 14:51:51,270 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-11 14:51:51,271 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-11 14:51:51,272 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-11 14:51:51,273 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-11 14:51:51,274 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-11 14:51:51,275 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-11 14:51:51,276 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-11 14:51:51,277 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-11 14:51:51,278 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-11 14:51:51,279 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-11 14:51:51,280 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-11 14:51:51,282 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-11 14:51:51,284 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-11 14:51:51,285 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-11 14:51:51,286 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-11 14:51:51,287 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-11 14:51:51,291 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-11 14:51:51,292 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-11 14:51:51,292 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-11 14:51:51,293 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-11 14:51:51,293 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-11 14:51:51,294 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-11 14:51:51,294 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-11 14:51:51,295 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-11 14:51:51,296 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-11 14:51:51,297 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-11 14:51:51,298 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-11 14:51:51,298 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-11 14:51:51,299 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-11 14:51:51,299 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-11 14:51:51,299 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-11 14:51:51,300 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-11 14:51:51,301 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-11 14:51:51,302 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-11 14:51:51,324 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-11 14:51:51,325 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-11 14:51:51,326 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-11 14:51:51,326 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-11 14:51:51,326 INFO L138 SettingsManager]: * Use SBE=true [2020-10-11 14:51:51,326 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-11 14:51:51,327 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-11 14:51:51,327 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-11 14:51:51,327 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-11 14:51:51,327 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-11 14:51:51,327 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-11 14:51:51,328 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-11 14:51:51,328 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-11 14:51:51,328 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-11 14:51:51,328 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-11 14:51:51,328 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-11 14:51:51,328 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-11 14:51:51,329 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-11 14:51:51,329 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-11 14:51:51,329 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-11 14:51:51,329 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-11 14:51:51,329 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-11 14:51:51,330 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-11 14:51:51,330 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-11 14:51:51,330 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-11 14:51:51,330 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-11 14:51:51,330 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-11 14:51:51,330 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-11 14:51:51,331 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-11 14:51:51,331 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-10-11 14:51:51,643 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-11 14:51:51,653 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-11 14:51:51,657 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-11 14:51:51,658 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-11 14:51:51,660 INFO L275 PluginConnector]: CDTParser initialized [2020-10-11 14:51:51,661 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/mix042_tso.opt.i [2020-10-11 14:51:51,724 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/41142128c/08fded118c0a4078bed6825768e6ce3a/FLAG0232c2f81 [2020-10-11 14:51:52,320 INFO L306 CDTParser]: Found 1 translation units. [2020-10-11 14:51:52,321 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/mix042_tso.opt.i [2020-10-11 14:51:52,344 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/41142128c/08fded118c0a4078bed6825768e6ce3a/FLAG0232c2f81 [2020-10-11 14:51:52,590 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/41142128c/08fded118c0a4078bed6825768e6ce3a [2020-10-11 14:51:52,599 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-11 14:51:52,601 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-10-11 14:51:52,602 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-11 14:51:52,602 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-11 14:51:52,606 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-11 14:51:52,607 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 02:51:52" (1/1) ... [2020-10-11 14:51:52,610 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@47f5a9bc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:51:52, skipping insertion in model container [2020-10-11 14:51:52,610 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 02:51:52" (1/1) ... [2020-10-11 14:51:52,618 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-11 14:51:52,687 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-11 14:51:53,187 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-11 14:51:53,200 INFO L203 MainTranslator]: Completed pre-run [2020-10-11 14:51:53,261 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-11 14:51:53,349 INFO L208 MainTranslator]: Completed translation [2020-10-11 14:51:53,349 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:51:53 WrapperNode [2020-10-11 14:51:53,350 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-11 14:51:53,351 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-11 14:51:53,351 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-11 14:51:53,351 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-11 14:51:53,358 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:51:53" (1/1) ... [2020-10-11 14:51:53,380 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:51:53" (1/1) ... [2020-10-11 14:51:53,419 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-11 14:51:53,420 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-11 14:51:53,420 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-11 14:51:53,420 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-11 14:51:53,430 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:51:53" (1/1) ... [2020-10-11 14:51:53,431 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:51:53" (1/1) ... [2020-10-11 14:51:53,436 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:51:53" (1/1) ... [2020-10-11 14:51:53,436 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:51:53" (1/1) ... [2020-10-11 14:51:53,449 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:51:53" (1/1) ... [2020-10-11 14:51:53,454 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:51:53" (1/1) ... [2020-10-11 14:51:53,458 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:51:53" (1/1) ... [2020-10-11 14:51:53,463 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-11 14:51:53,464 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-11 14:51:53,464 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-11 14:51:53,464 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-11 14:51:53,465 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:51:53" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-11 14:51:53,525 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-11 14:51:53,526 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-10-11 14:51:53,526 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-11 14:51:53,526 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-11 14:51:53,527 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-10-11 14:51:53,527 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-10-11 14:51:53,528 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-10-11 14:51:53,528 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-10-11 14:51:53,529 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-10-11 14:51:53,529 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-10-11 14:51:53,530 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-10-11 14:51:53,530 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-11 14:51:53,530 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-11 14:51:53,532 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-10-11 14:51:55,376 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-11 14:51:55,376 INFO L298 CfgBuilder]: Removed 10 assume(true) statements. [2020-10-11 14:51:55,378 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 02:51:55 BoogieIcfgContainer [2020-10-11 14:51:55,379 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-11 14:51:55,380 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-11 14:51:55,380 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-11 14:51:55,384 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-11 14:51:55,384 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.10 02:51:52" (1/3) ... [2020-10-11 14:51:55,385 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@30ce7014 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 02:51:55, skipping insertion in model container [2020-10-11 14:51:55,385 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:51:53" (2/3) ... [2020-10-11 14:51:55,386 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@30ce7014 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 02:51:55, skipping insertion in model container [2020-10-11 14:51:55,386 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 02:51:55" (3/3) ... [2020-10-11 14:51:55,388 INFO L111 eAbstractionObserver]: Analyzing ICFG mix042_tso.opt.i [2020-10-11 14:51:55,400 WARN L153 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-10-11 14:51:55,400 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-11 14:51:55,408 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2020-10-11 14:51:55,409 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-10-11 14:51:55,438 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 14:51:55,438 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 14:51:55,438 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 14:51:55,439 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 14:51:55,439 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 14:51:55,439 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 14:51:55,440 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 14:51:55,440 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 14:51:55,440 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 14:51:55,440 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 14:51:55,440 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 14:51:55,441 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 14:51:55,441 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 14:51:55,441 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 14:51:55,441 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 14:51:55,441 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 14:51:55,442 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 14:51:55,442 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 14:51:55,442 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 14:51:55,443 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 14:51:55,443 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 14:51:55,443 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 14:51:55,444 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 14:51:55,444 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 14:51:55,444 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 14:51:55,444 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 14:51:55,445 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 14:51:55,445 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 14:51:55,445 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 14:51:55,445 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 14:51:55,445 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 14:51:55,446 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 14:51:55,446 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 14:51:55,446 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 14:51:55,446 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 14:51:55,447 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 14:51:55,451 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 14:51:55,451 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 14:51:55,451 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 14:51:55,451 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 14:51:55,453 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 14:51:55,454 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 14:51:55,454 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 14:51:55,454 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 14:51:55,454 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 14:51:55,454 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 14:51:55,455 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 14:51:55,455 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 14:51:55,455 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 14:51:55,455 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 14:51:55,457 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 14:51:55,457 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 14:51:55,457 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 14:51:55,457 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 14:51:55,458 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 14:51:55,458 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 14:51:55,458 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 14:51:55,458 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 14:51:55,458 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 14:51:55,459 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 14:51:55,459 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 14:51:55,459 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 14:51:55,475 INFO L253 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2020-10-11 14:51:55,495 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-11 14:51:55,496 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-11 14:51:55,496 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-11 14:51:55,496 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-11 14:51:55,496 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-11 14:51:55,496 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-11 14:51:55,496 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-11 14:51:55,496 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-11 14:51:55,510 INFO L129 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2020-10-11 14:51:55,513 INFO L144 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 104 places, 96 transitions, 207 flow [2020-10-11 14:51:55,516 INFO L111 LiptonReduction]: Starting Lipton reduction on Petri net that has 104 places, 96 transitions, 207 flow [2020-10-11 14:51:55,518 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 104 places, 96 transitions, 207 flow [2020-10-11 14:51:55,567 INFO L129 PetriNetUnfolder]: 2/93 cut-off events. [2020-10-11 14:51:55,567 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-10-11 14:51:55,573 INFO L80 FinitePrefix]: Finished finitePrefix Result has 103 conditions, 93 events. 2/93 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 69 event pairs, 0 based on Foata normal form. 0/89 useless extension candidates. Maximal degree in co-relation 61. Up to 2 conditions per place. [2020-10-11 14:51:55,577 INFO L117 LiptonReduction]: Number of co-enabled transitions 1692 [2020-10-11 14:51:55,814 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 3, 2, 2, 1] term [2020-10-11 14:51:55,815 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-11 14:51:55,992 WARN L193 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 38 [2020-10-11 14:51:56,044 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 3, 2, 2, 1] term [2020-10-11 14:51:56,044 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-11 14:51:56,103 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[3, 2, 5, 4, 3, 2, 1] term [2020-10-11 14:51:56,103 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-10-11 14:51:56,105 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[3, 2, 5, 4, 1] term [2020-10-11 14:51:56,106 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-10-11 14:51:56,126 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[3, 2, 5, 4, 3, 2, 1] term [2020-10-11 14:51:56,126 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-10-11 14:51:56,128 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[3, 2, 5, 4, 1] term [2020-10-11 14:51:56,128 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-10-11 14:51:57,296 WARN L193 SmtUtils]: Spent 1.14 s on a formula simplification. DAG size of input: 228 DAG size of output: 188 [2020-10-11 14:51:57,316 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[3, 2, 5, 4, 2, 2, 1] term [2020-10-11 14:51:57,316 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-10-11 14:51:57,318 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[3, 2, 5, 4, 1] term [2020-10-11 14:51:57,318 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-10-11 14:51:58,229 WARN L193 SmtUtils]: Spent 903.00 ms on a formula simplification. DAG size of input: 145 DAG size of output: 125 [2020-10-11 14:51:58,478 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[3, 2, 5, 4, 3, 2, 1] term [2020-10-11 14:51:58,478 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-10-11 14:51:58,483 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[3, 2, 5, 4, 1] term [2020-10-11 14:51:58,483 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-10-11 14:51:58,522 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[3, 2, 5, 4, 3, 2, 1] term [2020-10-11 14:51:58,523 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-10-11 14:51:58,524 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[3, 2, 5, 4, 1] term [2020-10-11 14:51:58,525 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-10-11 14:51:58,905 WARN L193 SmtUtils]: Spent 305.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 58 [2020-10-11 14:51:59,011 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 53 [2020-10-11 14:51:59,195 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 4, 2, 3, 2, 1] term [2020-10-11 14:51:59,196 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-11 14:51:59,197 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 3, 2, 3, 2, 1] term [2020-10-11 14:51:59,198 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-11 14:51:59,201 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[3, 2, 3, 2, 3, 2, 3, 2, 3, 2, 1] term [2020-10-11 14:51:59,203 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-10-11 14:51:59,206 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[6, 2, 4, 2, 3, 2, 1] term [2020-10-11 14:51:59,207 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-10-11 14:51:59,241 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 3, 2, 3, 2, 1] term [2020-10-11 14:51:59,242 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-11 14:51:59,243 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 3, 2, 3, 2, 1] term [2020-10-11 14:51:59,243 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-11 14:51:59,249 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[4, 2, 3, 2, 3, 2, 3, 2, 3, 2, 1] term [2020-10-11 14:51:59,250 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-10-11 14:51:59,252 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[8, 2, 4, 2, 3, 2, 1] term [2020-10-11 14:51:59,253 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-10-11 14:51:59,364 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 4, 2, 3, 2, 1] term [2020-10-11 14:51:59,365 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-11 14:51:59,368 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 3, 2, 3, 2, 1] term [2020-10-11 14:51:59,369 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-11 14:51:59,376 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[3, 2, 3, 2, 3, 2, 3, 2, 3, 2, 1] term [2020-10-11 14:51:59,376 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-10-11 14:51:59,380 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[6, 2, 4, 2, 3, 2, 1] term [2020-10-11 14:51:59,381 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-10-11 14:51:59,405 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 3, 2, 3, 2, 1] term [2020-10-11 14:51:59,406 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-11 14:51:59,407 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 3, 2, 3, 2, 1] term [2020-10-11 14:51:59,408 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-11 14:51:59,411 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[4, 2, 3, 2, 3, 2, 3, 2, 3, 2, 1] term [2020-10-11 14:51:59,412 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-10-11 14:51:59,415 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[8, 2, 4, 2, 3, 2, 1] term [2020-10-11 14:51:59,416 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-10-11 14:51:59,613 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 3, 2, 3, 2, 1] term [2020-10-11 14:51:59,614 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-11 14:51:59,615 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 3, 2, 3, 2, 1] term [2020-10-11 14:51:59,616 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-11 14:51:59,618 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[4, 2, 3, 2, 3, 2, 3, 2, 3, 2, 1] term [2020-10-11 14:51:59,619 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-10-11 14:51:59,667 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[8, 2, 4, 2, 3, 2, 1] term [2020-10-11 14:51:59,667 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-10-11 14:51:59,678 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 3, 2, 3, 2, 1] term [2020-10-11 14:51:59,678 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-11 14:51:59,679 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 3, 2, 3, 2, 1] term [2020-10-11 14:51:59,679 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-11 14:51:59,681 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[3, 2, 3, 2, 3, 2, 3, 2, 3, 2, 1] term [2020-10-11 14:51:59,682 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-10-11 14:51:59,683 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[6, 2, 4, 2, 3, 2, 1] term [2020-10-11 14:51:59,684 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-10-11 14:52:00,113 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 3, 2, 3, 2, 1] term [2020-10-11 14:52:00,113 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-11 14:52:00,114 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 3, 2, 3, 2, 1] term [2020-10-11 14:52:00,115 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-11 14:52:00,116 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[4, 2, 3, 2, 3, 2, 3, 2, 3, 2, 1] term [2020-10-11 14:52:00,117 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-10-11 14:52:00,119 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[8, 2, 4, 2, 3, 2, 1] term [2020-10-11 14:52:00,119 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-10-11 14:52:00,130 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 4, 2, 3, 2, 1] term [2020-10-11 14:52:00,131 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-11 14:52:00,131 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 3, 2, 3, 2, 1] term [2020-10-11 14:52:00,132 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-11 14:52:00,134 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[3, 2, 3, 2, 3, 2, 3, 2, 3, 2, 1] term [2020-10-11 14:52:00,134 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-10-11 14:52:00,136 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[6, 2, 4, 2, 3, 2, 1] term [2020-10-11 14:52:00,136 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-10-11 14:52:00,874 WARN L193 SmtUtils]: Spent 241.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 91 [2020-10-11 14:52:01,012 WARN L193 SmtUtils]: Spent 135.00 ms on a formula simplification that was a NOOP. DAG size: 89 [2020-10-11 14:52:01,019 INFO L132 LiptonReduction]: Checked pairs total: 4657 [2020-10-11 14:52:01,019 INFO L134 LiptonReduction]: Total number of compositions: 79 [2020-10-11 14:52:01,025 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 37 places, 28 transitions, 71 flow [2020-10-11 14:52:01,090 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 890 states. [2020-10-11 14:52:01,092 INFO L276 IsEmpty]: Start isEmpty. Operand 890 states. [2020-10-11 14:52:01,098 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-10-11 14:52:01,099 INFO L413 BasicCegarLoop]: Found error trace [2020-10-11 14:52:01,100 INFO L421 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2020-10-11 14:52:01,100 INFO L429 AbstractCegarLoop]: === Iteration 1 === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-11 14:52:01,105 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-11 14:52:01,106 INFO L82 PathProgramCache]: Analyzing trace with hash -964678123, now seen corresponding path program 1 times [2020-10-11 14:52:01,116 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-11 14:52:01,116 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1468300527] [2020-10-11 14:52:01,116 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-11 14:52:01,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-11 14:52:01,334 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-11 14:52:01,334 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1468300527] [2020-10-11 14:52:01,335 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-11 14:52:01,336 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-10-11 14:52:01,336 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1993499077] [2020-10-11 14:52:01,341 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-11 14:52:01,342 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-11 14:52:01,357 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-11 14:52:01,358 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-11 14:52:01,360 INFO L87 Difference]: Start difference. First operand 890 states. Second operand 3 states. [2020-10-11 14:52:01,493 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-11 14:52:01,493 INFO L93 Difference]: Finished difference Result 770 states and 2434 transitions. [2020-10-11 14:52:01,498 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-11 14:52:01,500 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 7 [2020-10-11 14:52:01,500 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-11 14:52:01,534 INFO L225 Difference]: With dead ends: 770 [2020-10-11 14:52:01,534 INFO L226 Difference]: Without dead ends: 650 [2020-10-11 14:52:01,535 INFO L673 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 [2020-10-11 14:52:01,559 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 650 states. [2020-10-11 14:52:01,633 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 650 to 650. [2020-10-11 14:52:01,635 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 650 states. [2020-10-11 14:52:01,639 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 650 states to 650 states and 2028 transitions. [2020-10-11 14:52:01,641 INFO L78 Accepts]: Start accepts. Automaton has 650 states and 2028 transitions. Word has length 7 [2020-10-11 14:52:01,642 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-11 14:52:01,642 INFO L481 AbstractCegarLoop]: Abstraction has 650 states and 2028 transitions. [2020-10-11 14:52:01,642 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-11 14:52:01,642 INFO L276 IsEmpty]: Start isEmpty. Operand 650 states and 2028 transitions. [2020-10-11 14:52:01,644 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-10-11 14:52:01,645 INFO L413 BasicCegarLoop]: Found error trace [2020-10-11 14:52:01,645 INFO L421 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-11 14:52:01,645 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-11 14:52:01,645 INFO L429 AbstractCegarLoop]: === Iteration 2 === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-11 14:52:01,646 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-11 14:52:01,646 INFO L82 PathProgramCache]: Analyzing trace with hash -1097435749, now seen corresponding path program 1 times [2020-10-11 14:52:01,646 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-11 14:52:01,646 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1378574598] [2020-10-11 14:52:01,647 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-11 14:52:01,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-11 14:52:01,779 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-11 14:52:01,779 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1378574598] [2020-10-11 14:52:01,780 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-11 14:52:01,780 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-11 14:52:01,780 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2102712751] [2020-10-11 14:52:01,782 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-11 14:52:01,782 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-11 14:52:01,782 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-11 14:52:01,782 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-11 14:52:01,783 INFO L87 Difference]: Start difference. First operand 650 states and 2028 transitions. Second operand 4 states. [2020-10-11 14:52:01,864 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-11 14:52:01,865 INFO L93 Difference]: Finished difference Result 730 states and 2192 transitions. [2020-10-11 14:52:01,866 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-11 14:52:01,866 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 10 [2020-10-11 14:52:01,866 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-11 14:52:01,871 INFO L225 Difference]: With dead ends: 730 [2020-10-11 14:52:01,872 INFO L226 Difference]: Without dead ends: 610 [2020-10-11 14:52:01,873 INFO L673 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-11 14:52:01,876 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 610 states. [2020-10-11 14:52:01,904 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 610 to 610. [2020-10-11 14:52:01,904 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 610 states. [2020-10-11 14:52:01,908 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 610 states to 610 states and 1886 transitions. [2020-10-11 14:52:01,908 INFO L78 Accepts]: Start accepts. Automaton has 610 states and 1886 transitions. Word has length 10 [2020-10-11 14:52:01,908 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-11 14:52:01,908 INFO L481 AbstractCegarLoop]: Abstraction has 610 states and 1886 transitions. [2020-10-11 14:52:01,908 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-11 14:52:01,909 INFO L276 IsEmpty]: Start isEmpty. Operand 610 states and 1886 transitions. [2020-10-11 14:52:01,911 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-10-11 14:52:01,911 INFO L413 BasicCegarLoop]: Found error trace [2020-10-11 14:52:01,911 INFO L421 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-11 14:52:01,911 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-11 14:52:01,911 INFO L429 AbstractCegarLoop]: === Iteration 3 === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-11 14:52:01,912 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-11 14:52:01,912 INFO L82 PathProgramCache]: Analyzing trace with hash 339258869, now seen corresponding path program 1 times [2020-10-11 14:52:01,912 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-11 14:52:01,912 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2045426110] [2020-10-11 14:52:01,912 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-11 14:52:01,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-11 14:52:02,087 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-11 14:52:02,087 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2045426110] [2020-10-11 14:52:02,088 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-11 14:52:02,088 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-11 14:52:02,089 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1745322648] [2020-10-11 14:52:02,089 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-11 14:52:02,090 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-11 14:52:02,090 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-11 14:52:02,090 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-11 14:52:02,090 INFO L87 Difference]: Start difference. First operand 610 states and 1886 transitions. Second operand 4 states. [2020-10-11 14:52:02,118 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-11 14:52:02,119 INFO L93 Difference]: Finished difference Result 670 states and 1999 transitions. [2020-10-11 14:52:02,119 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-11 14:52:02,119 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2020-10-11 14:52:02,120 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-11 14:52:02,124 INFO L225 Difference]: With dead ends: 670 [2020-10-11 14:52:02,124 INFO L226 Difference]: Without dead ends: 570 [2020-10-11 14:52:02,125 INFO L673 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-11 14:52:02,128 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 570 states. [2020-10-11 14:52:02,141 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 570 to 570. [2020-10-11 14:52:02,142 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 570 states. [2020-10-11 14:52:02,145 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 570 states to 570 states and 1744 transitions. [2020-10-11 14:52:02,145 INFO L78 Accepts]: Start accepts. Automaton has 570 states and 1744 transitions. Word has length 11 [2020-10-11 14:52:02,145 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-11 14:52:02,146 INFO L481 AbstractCegarLoop]: Abstraction has 570 states and 1744 transitions. [2020-10-11 14:52:02,146 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-11 14:52:02,146 INFO L276 IsEmpty]: Start isEmpty. Operand 570 states and 1744 transitions. [2020-10-11 14:52:02,148 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-10-11 14:52:02,149 INFO L413 BasicCegarLoop]: Found error trace [2020-10-11 14:52:02,149 INFO L421 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-11 14:52:02,149 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-11 14:52:02,149 INFO L429 AbstractCegarLoop]: === Iteration 4 === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-11 14:52:02,149 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-11 14:52:02,149 INFO L82 PathProgramCache]: Analyzing trace with hash 1927062368, now seen corresponding path program 1 times [2020-10-11 14:52:02,150 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-11 14:52:02,150 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [470077613] [2020-10-11 14:52:02,150 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-11 14:52:02,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-11 14:52:02,299 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-11 14:52:02,300 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [470077613] [2020-10-11 14:52:02,300 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-11 14:52:02,300 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-11 14:52:02,301 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [693215989] [2020-10-11 14:52:02,301 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-11 14:52:02,301 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-11 14:52:02,301 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-11 14:52:02,302 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-11 14:52:02,302 INFO L87 Difference]: Start difference. First operand 570 states and 1744 transitions. Second operand 6 states. [2020-10-11 14:52:02,431 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-11 14:52:02,431 INFO L93 Difference]: Finished difference Result 618 states and 1824 transitions. [2020-10-11 14:52:02,440 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-11 14:52:02,440 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 12 [2020-10-11 14:52:02,440 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-11 14:52:02,444 INFO L225 Difference]: With dead ends: 618 [2020-10-11 14:52:02,445 INFO L226 Difference]: Without dead ends: 538 [2020-10-11 14:52:02,445 INFO L673 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 [2020-10-11 14:52:02,448 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 538 states. [2020-10-11 14:52:02,460 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 538 to 538. [2020-10-11 14:52:02,460 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 538 states. [2020-10-11 14:52:02,463 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 538 states to 538 states and 1624 transitions. [2020-10-11 14:52:02,463 INFO L78 Accepts]: Start accepts. Automaton has 538 states and 1624 transitions. Word has length 12 [2020-10-11 14:52:02,463 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-11 14:52:02,464 INFO L481 AbstractCegarLoop]: Abstraction has 538 states and 1624 transitions. [2020-10-11 14:52:02,464 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-11 14:52:02,464 INFO L276 IsEmpty]: Start isEmpty. Operand 538 states and 1624 transitions. [2020-10-11 14:52:02,468 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-10-11 14:52:02,468 INFO L413 BasicCegarLoop]: Found error trace [2020-10-11 14:52:02,469 INFO L421 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-11 14:52:02,469 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-11 14:52:02,469 INFO L429 AbstractCegarLoop]: === Iteration 5 === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-11 14:52:02,469 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-11 14:52:02,469 INFO L82 PathProgramCache]: Analyzing trace with hash -1896370169, now seen corresponding path program 1 times [2020-10-11 14:52:02,470 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-11 14:52:02,470 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1244794012] [2020-10-11 14:52:02,470 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-11 14:52:02,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-11 14:52:02,689 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-11 14:52:02,689 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1244794012] [2020-10-11 14:52:02,690 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-11 14:52:02,690 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-11 14:52:02,690 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2037908441] [2020-10-11 14:52:02,690 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-11 14:52:02,691 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-11 14:52:02,692 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-11 14:52:02,692 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-11 14:52:02,692 INFO L87 Difference]: Start difference. First operand 538 states and 1624 transitions. Second operand 7 states. [2020-10-11 14:52:02,894 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-11 14:52:02,894 INFO L93 Difference]: Finished difference Result 658 states and 1938 transitions. [2020-10-11 14:52:02,895 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-11 14:52:02,895 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 14 [2020-10-11 14:52:02,895 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-11 14:52:02,901 INFO L225 Difference]: With dead ends: 658 [2020-10-11 14:52:02,902 INFO L226 Difference]: Without dead ends: 594 [2020-10-11 14:52:02,905 INFO L673 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2020-10-11 14:52:02,909 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 594 states. [2020-10-11 14:52:02,924 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 594 to 594. [2020-10-11 14:52:02,924 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 594 states. [2020-10-11 14:52:02,936 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 594 states to 594 states and 1774 transitions. [2020-10-11 14:52:02,936 INFO L78 Accepts]: Start accepts. Automaton has 594 states and 1774 transitions. Word has length 14 [2020-10-11 14:52:02,936 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-11 14:52:02,939 INFO L481 AbstractCegarLoop]: Abstraction has 594 states and 1774 transitions. [2020-10-11 14:52:02,939 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-11 14:52:02,939 INFO L276 IsEmpty]: Start isEmpty. Operand 594 states and 1774 transitions. [2020-10-11 14:52:02,940 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-10-11 14:52:02,940 INFO L413 BasicCegarLoop]: Found error trace [2020-10-11 14:52:02,940 INFO L421 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-11 14:52:02,941 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-11 14:52:02,941 INFO L429 AbstractCegarLoop]: === Iteration 6 === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-11 14:52:02,941 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-11 14:52:02,941 INFO L82 PathProgramCache]: Analyzing trace with hash 775167457, now seen corresponding path program 1 times [2020-10-11 14:52:02,941 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-11 14:52:02,942 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [927029781] [2020-10-11 14:52:02,942 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-11 14:52:03,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-11 14:52:03,087 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-11 14:52:03,087 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [927029781] [2020-10-11 14:52:03,088 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-11 14:52:03,088 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-11 14:52:03,088 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1395473708] [2020-10-11 14:52:03,088 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-11 14:52:03,089 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-11 14:52:03,089 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-11 14:52:03,090 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-11 14:52:03,090 INFO L87 Difference]: Start difference. First operand 594 states and 1774 transitions. Second operand 4 states. [2020-10-11 14:52:03,121 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-11 14:52:03,121 INFO L93 Difference]: Finished difference Result 564 states and 1487 transitions. [2020-10-11 14:52:03,123 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-11 14:52:03,123 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 14 [2020-10-11 14:52:03,123 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-11 14:52:03,126 INFO L225 Difference]: With dead ends: 564 [2020-10-11 14:52:03,126 INFO L226 Difference]: Without dead ends: 420 [2020-10-11 14:52:03,126 INFO L673 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 [2020-10-11 14:52:03,128 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 420 states. [2020-10-11 14:52:03,136 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 420 to 420. [2020-10-11 14:52:03,137 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 420 states. [2020-10-11 14:52:03,138 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 420 states to 420 states and 1078 transitions. [2020-10-11 14:52:03,138 INFO L78 Accepts]: Start accepts. Automaton has 420 states and 1078 transitions. Word has length 14 [2020-10-11 14:52:03,139 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-11 14:52:03,139 INFO L481 AbstractCegarLoop]: Abstraction has 420 states and 1078 transitions. [2020-10-11 14:52:03,139 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-11 14:52:03,139 INFO L276 IsEmpty]: Start isEmpty. Operand 420 states and 1078 transitions. [2020-10-11 14:52:03,140 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-10-11 14:52:03,140 INFO L413 BasicCegarLoop]: Found error trace [2020-10-11 14:52:03,140 INFO L421 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-11 14:52:03,141 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-11 14:52:03,141 INFO L429 AbstractCegarLoop]: === Iteration 7 === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-11 14:52:03,141 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-11 14:52:03,141 INFO L82 PathProgramCache]: Analyzing trace with hash -451538249, now seen corresponding path program 1 times [2020-10-11 14:52:03,141 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-11 14:52:03,142 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2069615883] [2020-10-11 14:52:03,142 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-11 14:52:03,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-11 14:52:03,234 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-11 14:52:03,234 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2069615883] [2020-10-11 14:52:03,235 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-11 14:52:03,235 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-11 14:52:03,235 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1872026472] [2020-10-11 14:52:03,235 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-11 14:52:03,236 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-11 14:52:03,236 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-11 14:52:03,236 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-11 14:52:03,236 INFO L87 Difference]: Start difference. First operand 420 states and 1078 transitions. Second operand 5 states. [2020-10-11 14:52:03,281 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-11 14:52:03,282 INFO L93 Difference]: Finished difference Result 323 states and 754 transitions. [2020-10-11 14:52:03,282 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-11 14:52:03,282 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 15 [2020-10-11 14:52:03,282 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-11 14:52:03,284 INFO L225 Difference]: With dead ends: 323 [2020-10-11 14:52:03,284 INFO L226 Difference]: Without dead ends: 248 [2020-10-11 14:52:03,285 INFO L673 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-10-11 14:52:03,286 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 248 states. [2020-10-11 14:52:03,290 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 248 to 248. [2020-10-11 14:52:03,290 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 248 states. [2020-10-11 14:52:03,291 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 248 states to 248 states and 562 transitions. [2020-10-11 14:52:03,292 INFO L78 Accepts]: Start accepts. Automaton has 248 states and 562 transitions. Word has length 15 [2020-10-11 14:52:03,292 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-11 14:52:03,292 INFO L481 AbstractCegarLoop]: Abstraction has 248 states and 562 transitions. [2020-10-11 14:52:03,292 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-11 14:52:03,292 INFO L276 IsEmpty]: Start isEmpty. Operand 248 states and 562 transitions. [2020-10-11 14:52:03,293 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-10-11 14:52:03,293 INFO L413 BasicCegarLoop]: Found error trace [2020-10-11 14:52:03,293 INFO L421 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-11 14:52:03,293 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-11 14:52:03,294 INFO L429 AbstractCegarLoop]: === Iteration 8 === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-11 14:52:03,294 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-11 14:52:03,294 INFO L82 PathProgramCache]: Analyzing trace with hash -38316131, now seen corresponding path program 1 times [2020-10-11 14:52:03,294 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-11 14:52:03,294 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [746392651] [2020-10-11 14:52:03,295 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-11 14:52:03,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-11 14:52:03,386 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-11 14:52:03,387 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [746392651] [2020-10-11 14:52:03,387 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-11 14:52:03,388 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-11 14:52:03,388 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [390391766] [2020-10-11 14:52:03,389 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-11 14:52:03,389 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-11 14:52:03,389 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-11 14:52:03,389 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-11 14:52:03,389 INFO L87 Difference]: Start difference. First operand 248 states and 562 transitions. Second operand 7 states. [2020-10-11 14:52:03,477 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-11 14:52:03,478 INFO L93 Difference]: Finished difference Result 386 states and 853 transitions. [2020-10-11 14:52:03,478 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-11 14:52:03,478 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 18 [2020-10-11 14:52:03,479 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-11 14:52:03,481 INFO L225 Difference]: With dead ends: 386 [2020-10-11 14:52:03,481 INFO L226 Difference]: Without dead ends: 270 [2020-10-11 14:52:03,481 INFO L673 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2020-10-11 14:52:03,483 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 270 states. [2020-10-11 14:52:03,489 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 270 to 262. [2020-10-11 14:52:03,489 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 262 states. [2020-10-11 14:52:03,490 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 262 states to 262 states and 570 transitions. [2020-10-11 14:52:03,490 INFO L78 Accepts]: Start accepts. Automaton has 262 states and 570 transitions. Word has length 18 [2020-10-11 14:52:03,491 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-11 14:52:03,491 INFO L481 AbstractCegarLoop]: Abstraction has 262 states and 570 transitions. [2020-10-11 14:52:03,491 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-11 14:52:03,491 INFO L276 IsEmpty]: Start isEmpty. Operand 262 states and 570 transitions. [2020-10-11 14:52:03,492 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-10-11 14:52:03,492 INFO L413 BasicCegarLoop]: Found error trace [2020-10-11 14:52:03,493 INFO L421 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-11 14:52:03,493 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-11 14:52:03,493 INFO L429 AbstractCegarLoop]: === Iteration 9 === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-11 14:52:03,493 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-11 14:52:03,493 INFO L82 PathProgramCache]: Analyzing trace with hash -669464805, now seen corresponding path program 2 times [2020-10-11 14:52:03,494 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-11 14:52:03,494 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1091602185] [2020-10-11 14:52:03,494 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-11 14:52:03,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-11 14:52:03,572 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-11 14:52:03,573 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1091602185] [2020-10-11 14:52:03,573 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-11 14:52:03,573 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-11 14:52:03,573 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1606916755] [2020-10-11 14:52:03,574 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-11 14:52:03,574 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-11 14:52:03,574 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-11 14:52:03,575 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-10-11 14:52:03,575 INFO L87 Difference]: Start difference. First operand 262 states and 570 transitions. Second operand 6 states. [2020-10-11 14:52:03,658 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-11 14:52:03,658 INFO L93 Difference]: Finished difference Result 227 states and 498 transitions. [2020-10-11 14:52:03,658 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-11 14:52:03,659 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 18 [2020-10-11 14:52:03,659 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-11 14:52:03,660 INFO L225 Difference]: With dead ends: 227 [2020-10-11 14:52:03,660 INFO L226 Difference]: Without dead ends: 147 [2020-10-11 14:52:03,661 INFO L673 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2020-10-11 14:52:03,662 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 147 states. [2020-10-11 14:52:03,665 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 147 to 123. [2020-10-11 14:52:03,665 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 123 states. [2020-10-11 14:52:03,666 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123 states to 123 states and 270 transitions. [2020-10-11 14:52:03,666 INFO L78 Accepts]: Start accepts. Automaton has 123 states and 270 transitions. Word has length 18 [2020-10-11 14:52:03,667 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-11 14:52:03,667 INFO L481 AbstractCegarLoop]: Abstraction has 123 states and 270 transitions. [2020-10-11 14:52:03,667 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-11 14:52:03,668 INFO L276 IsEmpty]: Start isEmpty. Operand 123 states and 270 transitions. [2020-10-11 14:52:03,669 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-10-11 14:52:03,669 INFO L413 BasicCegarLoop]: Found error trace [2020-10-11 14:52:03,669 INFO L421 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-11 14:52:03,669 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-11 14:52:03,670 INFO L429 AbstractCegarLoop]: === Iteration 10 === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-11 14:52:03,670 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-11 14:52:03,670 INFO L82 PathProgramCache]: Analyzing trace with hash 993953900, now seen corresponding path program 1 times [2020-10-11 14:52:03,670 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-11 14:52:03,671 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1691972799] [2020-10-11 14:52:03,671 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-11 14:52:03,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-11 14:52:03,838 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-11 14:52:03,839 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1691972799] [2020-10-11 14:52:03,839 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-11 14:52:03,839 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-11 14:52:03,839 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [715884049] [2020-10-11 14:52:03,840 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-11 14:52:03,840 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-11 14:52:03,841 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-11 14:52:03,841 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-10-11 14:52:03,841 INFO L87 Difference]: Start difference. First operand 123 states and 270 transitions. Second operand 7 states. [2020-10-11 14:52:03,945 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-11 14:52:03,945 INFO L93 Difference]: Finished difference Result 206 states and 457 transitions. [2020-10-11 14:52:03,946 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-11 14:52:03,946 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 22 [2020-10-11 14:52:03,946 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-11 14:52:03,947 INFO L225 Difference]: With dead ends: 206 [2020-10-11 14:52:03,947 INFO L226 Difference]: Without dead ends: 111 [2020-10-11 14:52:03,948 INFO L673 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 [2020-10-11 14:52:03,948 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 111 states. [2020-10-11 14:52:03,951 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 111 to 111. [2020-10-11 14:52:03,951 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 111 states. [2020-10-11 14:52:03,952 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111 states to 111 states and 246 transitions. [2020-10-11 14:52:03,982 INFO L78 Accepts]: Start accepts. Automaton has 111 states and 246 transitions. Word has length 22 [2020-10-11 14:52:03,983 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-11 14:52:03,983 INFO L481 AbstractCegarLoop]: Abstraction has 111 states and 246 transitions. [2020-10-11 14:52:03,983 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-11 14:52:03,983 INFO L276 IsEmpty]: Start isEmpty. Operand 111 states and 246 transitions. [2020-10-11 14:52:03,983 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-10-11 14:52:03,984 INFO L413 BasicCegarLoop]: Found error trace [2020-10-11 14:52:03,984 INFO L421 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-11 14:52:03,984 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-11 14:52:03,984 INFO L429 AbstractCegarLoop]: === Iteration 11 === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-11 14:52:03,984 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-11 14:52:03,984 INFO L82 PathProgramCache]: Analyzing trace with hash -1885196598, now seen corresponding path program 2 times [2020-10-11 14:52:03,985 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-11 14:52:03,985 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1608816739] [2020-10-11 14:52:03,988 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-11 14:52:04,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-11 14:52:04,118 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-11 14:52:04,118 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1608816739] [2020-10-11 14:52:04,118 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-11 14:52:04,119 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-11 14:52:04,119 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [771536398] [2020-10-11 14:52:04,120 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-11 14:52:04,120 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-11 14:52:04,120 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-11 14:52:04,120 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-10-11 14:52:04,121 INFO L87 Difference]: Start difference. First operand 111 states and 246 transitions. Second operand 7 states. [2020-10-11 14:52:04,220 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-11 14:52:04,220 INFO L93 Difference]: Finished difference Result 154 states and 331 transitions. [2020-10-11 14:52:04,220 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-11 14:52:04,221 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 22 [2020-10-11 14:52:04,221 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-11 14:52:04,221 INFO L225 Difference]: With dead ends: 154 [2020-10-11 14:52:04,221 INFO L226 Difference]: Without dead ends: 71 [2020-10-11 14:52:04,222 INFO L673 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2020-10-11 14:52:04,222 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71 states. [2020-10-11 14:52:04,224 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71 to 71. [2020-10-11 14:52:04,224 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 71 states. [2020-10-11 14:52:04,224 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 71 states and 134 transitions. [2020-10-11 14:52:04,224 INFO L78 Accepts]: Start accepts. Automaton has 71 states and 134 transitions. Word has length 22 [2020-10-11 14:52:04,224 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-11 14:52:04,225 INFO L481 AbstractCegarLoop]: Abstraction has 71 states and 134 transitions. [2020-10-11 14:52:04,225 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-11 14:52:04,225 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 134 transitions. [2020-10-11 14:52:04,225 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-10-11 14:52:04,225 INFO L413 BasicCegarLoop]: Found error trace [2020-10-11 14:52:04,226 INFO L421 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-11 14:52:04,226 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-11 14:52:04,226 INFO L429 AbstractCegarLoop]: === Iteration 12 === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-11 14:52:04,226 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-11 14:52:04,226 INFO L82 PathProgramCache]: Analyzing trace with hash 231945706, now seen corresponding path program 3 times [2020-10-11 14:52:04,226 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-11 14:52:04,227 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1463033500] [2020-10-11 14:52:04,227 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-11 14:52:04,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-11 14:52:04,375 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-11 14:52:04,375 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1463033500] [2020-10-11 14:52:04,376 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-11 14:52:04,376 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-11 14:52:04,376 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [893088482] [2020-10-11 14:52:04,376 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-11 14:52:04,377 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-11 14:52:04,377 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-11 14:52:04,377 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-11 14:52:04,377 INFO L87 Difference]: Start difference. First operand 71 states and 134 transitions. Second operand 7 states. [2020-10-11 14:52:04,478 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-11 14:52:04,478 INFO L93 Difference]: Finished difference Result 86 states and 157 transitions. [2020-10-11 14:52:04,478 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-11 14:52:04,479 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 22 [2020-10-11 14:52:04,479 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-11 14:52:04,479 INFO L225 Difference]: With dead ends: 86 [2020-10-11 14:52:04,479 INFO L226 Difference]: Without dead ends: 59 [2020-10-11 14:52:04,480 INFO L673 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-10-11 14:52:04,480 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59 states. [2020-10-11 14:52:04,482 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59 to 59. [2020-10-11 14:52:04,482 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 59 states. [2020-10-11 14:52:04,482 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 106 transitions. [2020-10-11 14:52:04,483 INFO L78 Accepts]: Start accepts. Automaton has 59 states and 106 transitions. Word has length 22 [2020-10-11 14:52:04,483 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-11 14:52:04,483 INFO L481 AbstractCegarLoop]: Abstraction has 59 states and 106 transitions. [2020-10-11 14:52:04,483 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-11 14:52:04,483 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 106 transitions. [2020-10-11 14:52:04,484 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-10-11 14:52:04,484 INFO L413 BasicCegarLoop]: Found error trace [2020-10-11 14:52:04,484 INFO L421 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-11 14:52:04,484 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-11 14:52:04,484 INFO L429 AbstractCegarLoop]: === Iteration 13 === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-11 14:52:04,485 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-11 14:52:04,485 INFO L82 PathProgramCache]: Analyzing trace with hash 1651388136, now seen corresponding path program 4 times [2020-10-11 14:52:04,485 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-11 14:52:04,485 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1788395500] [2020-10-11 14:52:04,485 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-11 14:52:04,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-11 14:52:04,555 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-11 14:52:04,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-11 14:52:04,615 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-11 14:52:04,651 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-11 14:52:04,652 INFO L519 BasicCegarLoop]: Counterexample might be feasible [2020-10-11 14:52:04,652 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-11 14:52:04,671 WARN L219 RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented. [2020-10-11 14:52:04,671 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-11 14:52:04,673 WARN L219 RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented. [2020-10-11 14:52:04,673 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-11 14:52:04,673 WARN L219 RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented. [2020-10-11 14:52:04,674 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-11 14:52:04,674 WARN L219 RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented. [2020-10-11 14:52:04,674 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-11 14:52:04,674 WARN L219 RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented. [2020-10-11 14:52:04,674 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-11 14:52:04,674 WARN L219 RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented. [2020-10-11 14:52:04,675 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-11 14:52:04,675 WARN L219 RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented. [2020-10-11 14:52:04,675 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-11 14:52:04,675 WARN L219 RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented. [2020-10-11 14:52:04,676 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-11 14:52:04,676 WARN L219 RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented. [2020-10-11 14:52:04,676 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-11 14:52:04,676 WARN L219 RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented. [2020-10-11 14:52:04,676 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-11 14:52:04,676 WARN L219 RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented. [2020-10-11 14:52:04,677 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-11 14:52:04,677 WARN L219 RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented. [2020-10-11 14:52:04,677 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-11 14:52:04,678 WARN L219 RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented. [2020-10-11 14:52:04,678 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-11 14:52:04,678 WARN L219 RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented. [2020-10-11 14:52:04,678 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-11 14:52:04,678 WARN L219 RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented. [2020-10-11 14:52:04,678 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-11 14:52:04,679 WARN L219 RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented. [2020-10-11 14:52:04,679 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-11 14:52:04,679 WARN L219 RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented. [2020-10-11 14:52:04,679 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-11 14:52:04,679 WARN L219 RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented. [2020-10-11 14:52:04,679 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-11 14:52:04,680 WARN L219 RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented. [2020-10-11 14:52:04,680 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-11 14:52:04,680 WARN L219 RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented. [2020-10-11 14:52:04,680 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-11 14:52:04,680 WARN L219 RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented. [2020-10-11 14:52:04,681 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-11 14:52:04,681 WARN L219 RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented. [2020-10-11 14:52:04,681 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-11 14:52:04,681 WARN L219 RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented. [2020-10-11 14:52:04,681 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-11 14:52:04,682 WARN L219 RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented. [2020-10-11 14:52:04,682 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-11 14:52:04,682 WARN L219 RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented. [2020-10-11 14:52:04,682 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-11 14:52:04,682 WARN L219 RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented. [2020-10-11 14:52:04,682 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-11 14:52:04,683 WARN L219 RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented. [2020-10-11 14:52:04,683 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-11 14:52:04,683 WARN L219 RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented. [2020-10-11 14:52:04,683 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-11 14:52:04,683 WARN L219 RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented. [2020-10-11 14:52:04,683 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-11 14:52:04,741 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.10 02:52:04 BasicIcfg [2020-10-11 14:52:04,742 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-11 14:52:04,743 INFO L168 Benchmark]: Toolchain (without parser) took 12143.03 ms. Allocated memory was 250.1 MB in the beginning and 503.3 MB in the end (delta: 253.2 MB). Free memory was 205.2 MB in the beginning and 358.8 MB in the end (delta: -153.6 MB). Peak memory consumption was 99.6 MB. Max. memory is 14.2 GB. [2020-10-11 14:52:04,744 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 250.1 MB. Free memory was 228.1 MB in the beginning and 227.3 MB in the end (delta: 838.9 kB). Peak memory consumption was 838.9 kB. Max. memory is 14.2 GB. [2020-10-11 14:52:04,745 INFO L168 Benchmark]: CACSL2BoogieTranslator took 748.39 ms. Allocated memory was 250.1 MB in the beginning and 310.9 MB in the end (delta: 60.8 MB). Free memory was 205.2 MB in the beginning and 261.6 MB in the end (delta: -56.4 MB). Peak memory consumption was 31.0 MB. Max. memory is 14.2 GB. [2020-10-11 14:52:04,746 INFO L168 Benchmark]: Boogie Procedure Inliner took 69.01 ms. Allocated memory is still 310.9 MB. Free memory was 261.6 MB in the beginning and 259.0 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 14.2 GB. [2020-10-11 14:52:04,747 INFO L168 Benchmark]: Boogie Preprocessor took 43.92 ms. Allocated memory is still 310.9 MB. Free memory was 259.0 MB in the beginning and 256.5 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 14.2 GB. [2020-10-11 14:52:04,747 INFO L168 Benchmark]: RCFGBuilder took 1914.67 ms. Allocated memory was 310.9 MB in the beginning and 356.5 MB in the end (delta: 45.6 MB). Free memory was 256.5 MB in the beginning and 208.2 MB in the end (delta: 48.3 MB). Peak memory consumption was 99.8 MB. Max. memory is 14.2 GB. [2020-10-11 14:52:04,748 INFO L168 Benchmark]: TraceAbstraction took 9361.86 ms. Allocated memory was 356.5 MB in the beginning and 503.3 MB in the end (delta: 146.8 MB). Free memory was 206.0 MB in the beginning and 358.8 MB in the end (delta: -152.8 MB). There was no memory consumed. Max. memory is 14.2 GB. [2020-10-11 14:52:04,752 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 ms. Allocated memory is still 250.1 MB. Free memory was 228.1 MB in the beginning and 227.3 MB in the end (delta: 838.9 kB). Peak memory consumption was 838.9 kB. Max. memory is 14.2 GB. * CACSL2BoogieTranslator took 748.39 ms. Allocated memory was 250.1 MB in the beginning and 310.9 MB in the end (delta: 60.8 MB). Free memory was 205.2 MB in the beginning and 261.6 MB in the end (delta: -56.4 MB). Peak memory consumption was 31.0 MB. Max. memory is 14.2 GB. * Boogie Procedure Inliner took 69.01 ms. Allocated memory is still 310.9 MB. Free memory was 261.6 MB in the beginning and 259.0 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 14.2 GB. * Boogie Preprocessor took 43.92 ms. Allocated memory is still 310.9 MB. Free memory was 259.0 MB in the beginning and 256.5 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 14.2 GB. * RCFGBuilder took 1914.67 ms. Allocated memory was 310.9 MB in the beginning and 356.5 MB in the end (delta: 45.6 MB). Free memory was 256.5 MB in the beginning and 208.2 MB in the end (delta: 48.3 MB). Peak memory consumption was 99.8 MB. Max. memory is 14.2 GB. * TraceAbstraction took 9361.86 ms. Allocated memory was 356.5 MB in the beginning and 503.3 MB in the end (delta: 146.8 MB). Free memory was 206.0 MB in the beginning and 358.8 MB in the end (delta: -152.8 MB). There was no memory consumed. Max. memory is 14.2 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 1106 VarBasedMoverChecksPositive, 62 VarBasedMoverChecksNegative, 22 SemBasedMoverChecksPositive, 40 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.9s, 147 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 5.5s, 104 PlacesBefore, 37 PlacesAfterwards, 96 TransitionsBefore, 28 TransitionsAfterwards, 1692 CoEnabledTransitionPairs, 7 FixpointIterations, 34 TrivialSequentialCompositions, 37 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 7 ConcurrentYvCompositions, 1 ChoiceCompositions, 79 TotalNumberOfCompositions, 4657 MoverChecksTotal - CounterExampleResult [Line: 7]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L698] 0 int __unbuffered_cnt = 0; [L700] 0 int __unbuffered_p0_EAX = 0; [L702] 0 int __unbuffered_p2_EAX = 0; [L704] 0 int __unbuffered_p2_EBX = 0; [L706] 0 int a = 0; [L707] 0 _Bool main$tmp_guard0; [L708] 0 _Bool main$tmp_guard1; [L710] 0 int x = 0; [L712] 0 int y = 0; [L713] 0 _Bool y$flush_delayed; [L714] 0 int y$mem_tmp; [L715] 0 _Bool y$r_buff0_thd0; [L716] 0 _Bool y$r_buff0_thd1; [L717] 0 _Bool y$r_buff0_thd2; [L718] 0 _Bool y$r_buff0_thd3; [L719] 0 _Bool y$r_buff1_thd0; [L720] 0 _Bool y$r_buff1_thd1; [L721] 0 _Bool y$r_buff1_thd2; [L722] 0 _Bool y$r_buff1_thd3; [L723] 0 _Bool y$read_delayed; [L724] 0 int *y$read_delayed_var; [L725] 0 int y$w_buff0; [L726] 0 _Bool y$w_buff0_used; [L727] 0 int y$w_buff1; [L728] 0 _Bool y$w_buff1_used; [L730] 0 int z = 0; [L731] 0 _Bool weak$$choice0; [L732] 0 _Bool weak$$choice2; [L814] 0 pthread_t t1126; [L815] FCALL, FORK 0 pthread_create(&t1126, ((void *)0), P0, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p2_EBX=0, a=0, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=0, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, z=0] [L816] 0 pthread_t t1127; [L817] FCALL, FORK 0 pthread_create(&t1127, ((void *)0), P1, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p2_EBX=0, a=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=0, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, z=0] [L818] 0 pthread_t t1128; [L819] FCALL, FORK 0 pthread_create(&t1128, ((void *)0), P2, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p2_EBX=0, a=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=0, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, z=0] [L771] 3 y$w_buff1 = y$w_buff0 [L772] 3 y$w_buff0 = 2 [L773] 3 y$w_buff1_used = y$w_buff0_used [L774] 3 y$w_buff0_used = (_Bool)1 [L7] COND TRUE 3 !expression [L7] 3 __VERIFIER_error() [L776] 3 y$r_buff1_thd0 = y$r_buff0_thd0 [L777] 3 y$r_buff1_thd1 = y$r_buff0_thd1 [L778] 3 y$r_buff1_thd2 = y$r_buff0_thd2 [L779] 3 y$r_buff1_thd3 = y$r_buff0_thd3 [L780] 3 y$r_buff0_thd3 = (_Bool)1 [L783] 3 z = 1 VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p2_EBX=0, a=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0, z=1] [L786] 3 __unbuffered_p2_EAX = z VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p2_EAX=1, __unbuffered_p2_EBX=0, a=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0, z=1] [L789] 3 __unbuffered_p2_EBX = a VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p2_EAX=1, __unbuffered_p2_EBX=0, a=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0, z=1] [L736] 1 a = 1 VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p2_EAX=1, __unbuffered_p2_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0, z=1] [L739] 1 __unbuffered_p0_EAX = x VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p2_EAX=1, __unbuffered_p2_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0, z=1] [L751] 2 x = 1 VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p2_EAX=1, __unbuffered_p2_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=1, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0, z=1] [L744] 1 __unbuffered_cnt = __unbuffered_cnt + 1 [L746] 1 return 0; [L754] 2 y = 1 VAL [\result={0:0}, __unbuffered_cnt=1, __unbuffered_p0_EAX=0, __unbuffered_p2_EAX=1, __unbuffered_p2_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=1, y=1, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0, z=1] [L792] EXPR 3 y$w_buff0_used && y$r_buff0_thd3 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd3 ? y$w_buff1 : y) [L792] EXPR 3 y$w_buff1_used && y$r_buff1_thd3 ? y$w_buff1 : y [L792] EXPR 3 y$w_buff0_used && y$r_buff0_thd3 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd3 ? y$w_buff1 : y) [L792] 3 y = y$w_buff0_used && y$r_buff0_thd3 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd3 ? y$w_buff1 : y) [L793] EXPR 3 y$w_buff0_used && y$r_buff0_thd3 ? (_Bool)0 : y$w_buff0_used [L793] 3 y$w_buff0_used = y$w_buff0_used && y$r_buff0_thd3 ? (_Bool)0 : y$w_buff0_used [L794] EXPR 3 y$w_buff0_used && y$r_buff0_thd3 || y$w_buff1_used && y$r_buff1_thd3 ? (_Bool)0 : y$w_buff1_used [L794] 3 y$w_buff1_used = y$w_buff0_used && y$r_buff0_thd3 || y$w_buff1_used && y$r_buff1_thd3 ? (_Bool)0 : y$w_buff1_used [L795] EXPR 3 y$w_buff0_used && y$r_buff0_thd3 ? (_Bool)0 : y$r_buff0_thd3 [L795] 3 y$r_buff0_thd3 = y$w_buff0_used && y$r_buff0_thd3 ? (_Bool)0 : y$r_buff0_thd3 [L796] EXPR 3 y$w_buff0_used && y$r_buff0_thd3 || y$w_buff1_used && y$r_buff1_thd3 ? (_Bool)0 : y$r_buff1_thd3 [L796] 3 y$r_buff1_thd3 = y$w_buff0_used && y$r_buff0_thd3 || y$w_buff1_used && y$r_buff1_thd3 ? (_Bool)0 : y$r_buff1_thd3 [L799] 3 __unbuffered_cnt = __unbuffered_cnt + 1 [L801] 3 return 0; [L757] EXPR 2 y$w_buff0_used && y$r_buff0_thd2 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd2 ? y$w_buff1 : y) [L757] 2 y = y$w_buff0_used && y$r_buff0_thd2 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd2 ? y$w_buff1 : y) [L758] EXPR 2 y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : y$w_buff0_used [L758] 2 y$w_buff0_used = y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : y$w_buff0_used [L759] EXPR 2 y$w_buff0_used && y$r_buff0_thd2 || y$w_buff1_used && y$r_buff1_thd2 ? (_Bool)0 : y$w_buff1_used [L759] 2 y$w_buff1_used = y$w_buff0_used && y$r_buff0_thd2 || y$w_buff1_used && y$r_buff1_thd2 ? (_Bool)0 : y$w_buff1_used [L760] EXPR 2 y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : y$r_buff0_thd2 [L760] 2 y$r_buff0_thd2 = y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : y$r_buff0_thd2 [L761] EXPR 2 y$w_buff0_used && y$r_buff0_thd2 || y$w_buff1_used && y$r_buff1_thd2 ? (_Bool)0 : y$r_buff1_thd2 [L761] 2 y$r_buff1_thd2 = y$w_buff0_used && y$r_buff0_thd2 || y$w_buff1_used && y$r_buff1_thd2 ? (_Bool)0 : y$r_buff1_thd2 [L764] 2 __unbuffered_cnt = __unbuffered_cnt + 1 [L766] 2 return 0; [L821] 0 main$tmp_guard0 = __unbuffered_cnt == 3 [L3] COND FALSE 0 !(!cond) [L825] EXPR 0 y$w_buff0_used && y$r_buff0_thd0 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd0 ? y$w_buff1 : y) [L825] EXPR 0 y$w_buff1_used && y$r_buff1_thd0 ? y$w_buff1 : y [L825] EXPR 0 y$w_buff0_used && y$r_buff0_thd0 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd0 ? y$w_buff1 : y) [L825] 0 y = y$w_buff0_used && y$r_buff0_thd0 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd0 ? y$w_buff1 : y) [L826] EXPR 0 y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$w_buff0_used [L826] 0 y$w_buff0_used = y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$w_buff0_used [L827] EXPR 0 y$w_buff0_used && y$r_buff0_thd0 || y$w_buff1_used && y$r_buff1_thd0 ? (_Bool)0 : y$w_buff1_used [L827] 0 y$w_buff1_used = y$w_buff0_used && y$r_buff0_thd0 || y$w_buff1_used && y$r_buff1_thd0 ? (_Bool)0 : y$w_buff1_used [L828] EXPR 0 y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$r_buff0_thd0 [L828] 0 y$r_buff0_thd0 = y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$r_buff0_thd0 [L829] EXPR 0 y$w_buff0_used && y$r_buff0_thd0 || y$w_buff1_used && y$r_buff1_thd0 ? (_Bool)0 : y$r_buff1_thd0 [L829] 0 y$r_buff1_thd0 = y$w_buff0_used && y$r_buff0_thd0 || y$w_buff1_used && y$r_buff1_thd0 ? (_Bool)0 : y$r_buff1_thd0 [L832] 0 weak$$choice0 = __VERIFIER_nondet_bool() [L833] 0 weak$$choice2 = __VERIFIER_nondet_bool() [L834] 0 y$flush_delayed = weak$$choice2 [L835] 0 y$mem_tmp = y [L836] EXPR 0 !y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y : (y$w_buff0_used && y$r_buff0_thd0 ? y$w_buff0 : y$w_buff1) [L836] 0 y = !y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y : (y$w_buff0_used && y$r_buff0_thd0 ? y$w_buff0 : y$w_buff1) [L837] EXPR 0 weak$$choice2 ? y$w_buff0 : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$w_buff0 : (y$w_buff0_used && y$r_buff0_thd0 ? y$w_buff0 : y$w_buff0)) [L837] 0 y$w_buff0 = weak$$choice2 ? y$w_buff0 : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$w_buff0 : (y$w_buff0_used && y$r_buff0_thd0 ? y$w_buff0 : y$w_buff0)) [L838] EXPR 0 weak$$choice2 ? y$w_buff1 : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$w_buff1 : (y$w_buff0_used && y$r_buff0_thd0 ? y$w_buff1 : y$w_buff1)) [L838] 0 y$w_buff1 = weak$$choice2 ? y$w_buff1 : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$w_buff1 : (y$w_buff0_used && y$r_buff0_thd0 ? y$w_buff1 : y$w_buff1)) [L839] EXPR 0 weak$$choice2 ? y$w_buff0_used : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$w_buff0_used : (y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$w_buff0_used)) [L839] EXPR 0 !y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$w_buff0_used : (y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$w_buff0_used) [L839] EXPR 0 weak$$choice2 ? y$w_buff0_used : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$w_buff0_used : (y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$w_buff0_used)) [L839] 0 y$w_buff0_used = weak$$choice2 ? y$w_buff0_used : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$w_buff0_used : (y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$w_buff0_used)) [L840] EXPR 0 weak$$choice2 ? y$w_buff1_used : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$w_buff1_used : (y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : (_Bool)0)) [L840] 0 y$w_buff1_used = weak$$choice2 ? y$w_buff1_used : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$w_buff1_used : (y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : (_Bool)0)) [L841] EXPR 0 weak$$choice2 ? y$r_buff0_thd0 : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$r_buff0_thd0 : (y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$r_buff0_thd0)) [L841] EXPR 0 !y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$r_buff0_thd0 : (y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$r_buff0_thd0) [L841] EXPR 0 weak$$choice2 ? y$r_buff0_thd0 : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$r_buff0_thd0 : (y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$r_buff0_thd0)) [L841] 0 y$r_buff0_thd0 = weak$$choice2 ? y$r_buff0_thd0 : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$r_buff0_thd0 : (y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$r_buff0_thd0)) [L842] EXPR 0 weak$$choice2 ? y$r_buff1_thd0 : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$r_buff1_thd0 : (y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : (_Bool)0)) [L842] EXPR 0 !y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$r_buff1_thd0 : (y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : (_Bool)0) [L842] EXPR 0 weak$$choice2 ? y$r_buff1_thd0 : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$r_buff1_thd0 : (y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : (_Bool)0)) [L842] 0 y$r_buff1_thd0 = weak$$choice2 ? y$r_buff1_thd0 : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$r_buff1_thd0 : (y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : (_Bool)0)) [L843] 0 main$tmp_guard1 = !(y == 2 && __unbuffered_p0_EAX == 0 && __unbuffered_p2_EAX == 1 && __unbuffered_p2_EBX == 0) [L844] EXPR 0 y$flush_delayed ? y$mem_tmp : y [L844] 0 y = y$flush_delayed ? y$mem_tmp : y [L845] 0 y$flush_delayed = (_Bool)0 [L7] COND TRUE 0 !expression [L7] 0 __VERIFIER_error() VAL [\result={0:0}, \result={0:0}, __unbuffered_cnt=3, __unbuffered_p0_EAX=0, __unbuffered_p2_EAX=1, __unbuffered_p2_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, weak$$choice0=7, weak$$choice2=255, x=1, y=2, y$flush_delayed=0, y$mem_tmp=2, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, z=1] - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 95 locations, 2 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 9.1s, OverallIterations: 13, TraceHistogramMax: 1, AutomataDifference: 1.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 5.5s, HoareTripleCheckerStatistics: 349 SDtfs, 430 SDslu, 715 SDs, 0 SdLazy, 330 SolverSat, 89 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 68 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 61 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=890occurred 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: 0.2s AutomataMinimizationTime, 12 MinimizatonAttempts, 32 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 1.0s InterpolantComputationTime, 207 NumberOfCodeBlocks, 207 NumberOfCodeBlocksAsserted, 13 NumberOfCheckSat, 173 ConstructedInterpolants, 0 QuantifiedInterpolants, 21604 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 12 InterpolantComputations, 12 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...