/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/automizer/mcr/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-McrAutomaton-SP.epf -i ../../../trunk/examples/svcomp/pthread-wmm/mix045_pso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.2.0-7a177ad [2020-11-09 16:50:34,508 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-09 16:50:34,512 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-09 16:50:34,568 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-09 16:50:34,568 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-09 16:50:34,573 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-09 16:50:34,576 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-09 16:50:34,584 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-09 16:50:34,587 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-09 16:50:34,593 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-09 16:50:34,595 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-09 16:50:34,596 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-09 16:50:34,597 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-09 16:50:34,600 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-09 16:50:34,602 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-09 16:50:34,604 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-09 16:50:34,605 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-09 16:50:34,610 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-09 16:50:34,618 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-09 16:50:34,625 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-09 16:50:34,628 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-09 16:50:34,629 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-09 16:50:34,631 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-09 16:50:34,633 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-09 16:50:34,644 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-11-09 16:50:34,650 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-09 16:50:34,651 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-09 16:50:34,652 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-09 16:50:34,653 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-09 16:50:34,654 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-09 16:50:34,655 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-09 16:50:34,655 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-09 16:50:34,656 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-09 16:50:34,656 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-09 16:50:34,657 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-09 16:50:34,657 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-09 16:50:34,658 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/mcr/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-McrAutomaton-SP.epf [2020-11-09 16:50:34,726 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-09 16:50:34,726 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-09 16:50:34,731 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-09 16:50:34,731 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-09 16:50:34,731 INFO L138 SettingsManager]: * Use SBE=true [2020-11-09 16:50:34,732 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-09 16:50:34,732 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-09 16:50:34,732 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-09 16:50:34,732 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-09 16:50:34,732 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-09 16:50:34,733 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-09 16:50:34,733 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-09 16:50:34,734 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-09 16:50:34,734 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-09 16:50:34,734 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-09 16:50:34,734 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-09 16:50:34,734 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-09 16:50:34,735 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-09 16:50:34,735 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-09 16:50:34,735 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-09 16:50:34,736 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-09 16:50:34,736 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-09 16:50:34,736 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-09 16:50:34,736 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_NestedInterpolation [2020-11-09 16:50:34,736 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-09 16:50:34,737 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-09 16:50:34,737 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-09 16:50:34,737 INFO L138 SettingsManager]: * Override the interpolant automaton setting of the refinement strategy=true [2020-11-09 16:50:34,738 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=VARIABLE_BASED_MOVER_CHECK [2020-11-09 16:50:34,738 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-09 16:50:34,738 INFO L138 SettingsManager]: * Interpolant automaton=MCR WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-11-09 16:50:35,161 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-09 16:50:35,210 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-09 16:50:35,213 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-09 16:50:35,215 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-09 16:50:35,216 INFO L275 PluginConnector]: CDTParser initialized [2020-11-09 16:50:35,221 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/mix045_pso.opt.i [2020-11-09 16:50:35,309 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/24bbe4be1/7a309c170ddd4350ab1f41ab3dd5efe6/FLAG040208587 [2020-11-09 16:50:36,046 INFO L306 CDTParser]: Found 1 translation units. [2020-11-09 16:50:36,046 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/mix045_pso.opt.i [2020-11-09 16:50:36,064 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/24bbe4be1/7a309c170ddd4350ab1f41ab3dd5efe6/FLAG040208587 [2020-11-09 16:50:36,243 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/24bbe4be1/7a309c170ddd4350ab1f41ab3dd5efe6 [2020-11-09 16:50:36,248 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-09 16:50:36,256 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-11-09 16:50:36,261 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-09 16:50:36,261 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-09 16:50:36,266 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-09 16:50:36,267 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 04:50:36" (1/1) ... [2020-11-09 16:50:36,272 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@685a5ae8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:50:36, skipping insertion in model container [2020-11-09 16:50:36,272 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 04:50:36" (1/1) ... [2020-11-09 16:50:36,282 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-09 16:50:36,364 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-09 16:50:36,990 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-09 16:50:37,012 INFO L203 MainTranslator]: Completed pre-run [2020-11-09 16:50:37,109 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-09 16:50:37,246 INFO L208 MainTranslator]: Completed translation [2020-11-09 16:50:37,247 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:50:37 WrapperNode [2020-11-09 16:50:37,248 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-09 16:50:37,249 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-09 16:50:37,249 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-09 16:50:37,249 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-09 16:50:37,260 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:50:37" (1/1) ... [2020-11-09 16:50:37,308 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:50:37" (1/1) ... [2020-11-09 16:50:37,365 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-09 16:50:37,371 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-09 16:50:37,371 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-09 16:50:37,372 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-09 16:50:37,382 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:50:37" (1/1) ... [2020-11-09 16:50:37,383 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:50:37" (1/1) ... [2020-11-09 16:50:37,405 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:50:37" (1/1) ... [2020-11-09 16:50:37,405 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:50:37" (1/1) ... [2020-11-09 16:50:37,428 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:50:37" (1/1) ... [2020-11-09 16:50:37,437 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:50:37" (1/1) ... [2020-11-09 16:50:37,447 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:50:37" (1/1) ... [2020-11-09 16:50:37,456 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-09 16:50:37,459 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-09 16:50:37,460 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-09 16:50:37,460 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-09 16:50:37,462 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:50:37" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-09 16:50:37,548 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-09 16:50:37,548 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-11-09 16:50:37,549 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-09 16:50:37,549 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-09 16:50:37,550 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-11-09 16:50:37,550 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-11-09 16:50:37,551 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-11-09 16:50:37,551 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-11-09 16:50:37,552 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-11-09 16:50:37,552 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-11-09 16:50:37,553 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-09 16:50:37,553 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-11-09 16:50:37,553 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-09 16:50:37,553 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-09 16:50:37,555 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-11-09 16:50:40,040 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-09 16:50:40,041 INFO L298 CfgBuilder]: Removed 14 assume(true) statements. [2020-11-09 16:50:40,043 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 04:50:40 BoogieIcfgContainer [2020-11-09 16:50:40,043 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-09 16:50:40,046 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-09 16:50:40,046 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-09 16:50:40,049 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-09 16:50:40,050 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 04:50:36" (1/3) ... [2020-11-09 16:50:40,051 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@61dad560 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 04:50:40, skipping insertion in model container [2020-11-09 16:50:40,051 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:50:37" (2/3) ... [2020-11-09 16:50:40,052 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@61dad560 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 04:50:40, skipping insertion in model container [2020-11-09 16:50:40,052 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 04:50:40" (3/3) ... [2020-11-09 16:50:40,054 INFO L111 eAbstractionObserver]: Analyzing ICFG mix045_pso.opt.i [2020-11-09 16:50:40,072 WARN L168 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-11-09 16:50:40,073 INFO L179 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-11-09 16:50:40,077 INFO L191 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2020-11-09 16:50:40,078 INFO L351 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-11-09 16:50:40,132 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 16:50:40,133 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 16:50:40,133 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 16:50:40,133 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 16:50:40,133 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 16:50:40,133 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 16:50:40,134 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 16:50:40,134 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 16:50:40,134 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 16:50:40,134 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 16:50:40,134 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 16:50:40,135 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 16:50:40,135 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 16:50:40,135 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 16:50:40,135 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 16:50:40,136 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 16:50:40,136 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 16:50:40,136 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 16:50:40,136 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 16:50:40,136 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 16:50:40,137 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 16:50:40,137 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 16:50:40,137 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 16:50:40,137 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 16:50:40,137 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 16:50:40,139 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 16:50:40,139 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 16:50:40,140 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 16:50:40,140 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 16:50:40,140 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 16:50:40,140 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 16:50:40,140 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 16:50:40,141 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 16:50:40,141 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 16:50:40,142 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 16:50:40,143 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 16:50:40,143 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 16:50:40,143 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 16:50:40,145 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 16:50:40,145 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 16:50:40,145 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 16:50:40,145 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 16:50:40,145 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 16:50:40,146 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 16:50:40,146 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 16:50:40,146 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 16:50:40,146 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_reach_error_#t~nondet2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 16:50:40,146 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_reach_error_#t~nondet2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 16:50:40,146 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 16:50:40,147 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 16:50:40,147 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_reach_error_#t~nondet2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 16:50:40,147 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_reach_error_#t~nondet2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 16:50:40,148 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 16:50:40,148 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 16:50:40,148 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_reach_error_#t~nondet2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 16:50:40,148 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_reach_error_#t~nondet2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 16:50:40,148 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_reach_error_#t~nondet2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 16:50:40,148 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 16:50:40,149 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_reach_error_#t~nondet2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 16:50:40,149 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 16:50:40,149 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_reach_error_#t~nondet2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 16:50:40,149 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_reach_error_#t~nondet2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 16:50:40,149 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_reach_error_#t~nondet2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 16:50:40,150 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 16:50:40,150 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_reach_error_#t~nondet2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 16:50:40,150 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 16:50:40,151 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 16:50:40,151 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 16:50:40,151 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 16:50:40,151 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 16:50:40,151 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 16:50:40,152 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 16:50:40,152 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 16:50:40,152 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 16:50:40,153 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 16:50:40,153 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 16:50:40,153 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 16:50:40,154 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 16:50:40,154 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 16:50:40,155 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 16:50:40,155 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 16:50:40,156 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 16:50:40,156 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 16:50:40,156 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 16:50:40,159 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 16:50:40,159 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 16:50:40,160 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 16:50:40,160 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 16:50:40,160 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 16:50:40,160 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 16:50:40,161 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 16:50:40,161 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 16:50:40,161 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 16:50:40,161 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 16:50:40,167 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 16:50:40,167 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 16:50:40,167 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_reach_error_#t~nondet2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 16:50:40,167 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 16:50:40,168 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 16:50:40,168 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 16:50:40,170 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 16:50:40,170 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 16:50:40,170 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 16:50:40,170 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 16:50:40,170 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 16:50:40,171 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 16:50:40,171 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 16:50:40,172 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_reach_error_#t~nondet2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 16:50:40,174 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 16:50:40,174 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 16:50:40,175 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 16:50:40,175 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 16:50:40,177 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2020-11-09 16:50:40,190 INFO L253 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2020-11-09 16:50:40,226 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-09 16:50:40,226 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-09 16:50:40,227 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-11-09 16:50:40,227 INFO L380 AbstractCegarLoop]: Backedges is MCR [2020-11-09 16:50:40,227 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-09 16:50:40,227 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-09 16:50:40,227 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-09 16:50:40,227 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-09 16:50:40,249 INFO L128 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2020-11-09 16:50:40,250 INFO L135 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 111 places, 104 transitions, 223 flow [2020-11-09 16:50:40,254 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 111 places, 104 transitions, 223 flow [2020-11-09 16:50:40,256 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 111 places, 104 transitions, 223 flow [2020-11-09 16:50:40,335 INFO L129 PetriNetUnfolder]: 3/101 cut-off events. [2020-11-09 16:50:40,335 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-11-09 16:50:40,342 INFO L84 FinitePrefix]: Finished finitePrefix Result has 111 conditions, 101 events. 3/101 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 74 event pairs, 0 based on Foata normal form. 0/96 useless extension candidates. Maximal degree in co-relation 66. Up to 2 conditions per place. [2020-11-09 16:50:40,348 INFO L116 LiptonReduction]: Number of co-enabled transitions 1922 [2020-11-09 16:50:41,128 WARN L194 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 44 [2020-11-09 16:50:41,250 WARN L194 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 56 [2020-11-09 16:50:41,414 WARN L194 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 47 [2020-11-09 16:50:43,908 WARN L194 SmtUtils]: Spent 1.26 s on a formula simplification. DAG size of input: 228 DAG size of output: 188 [2020-11-09 16:50:43,941 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[3, 2, 5, 4, 2, 2, 1] term [2020-11-09 16:50:43,942 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-11-09 16:50:43,948 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[3, 2, 5, 4, 1] term [2020-11-09 16:50:43,948 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-11-09 16:50:44,888 WARN L194 SmtUtils]: Spent 911.00 ms on a formula simplification. DAG size of input: 145 DAG size of output: 125 [2020-11-09 16:50:47,252 WARN L194 SmtUtils]: Spent 2.36 s on a formula simplification. DAG size of input: 312 DAG size of output: 267 [2020-11-09 16:50:47,264 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 5, 2, 7, 3, 2, 1] term [2020-11-09 16:50:47,265 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-09 16:50:47,269 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[3, 2, 7, 3, 2, 1] term [2020-11-09 16:50:47,269 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-11-09 16:50:47,273 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 4, 3, 2, 1] term [2020-11-09 16:50:47,273 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-09 16:50:47,280 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 7, 3, 2, 1] term [2020-11-09 16:50:47,281 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-09 16:50:47,283 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-11-09 16:50:47,285 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-11-09 16:50:47,286 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-09 16:50:47,287 INFO L603 QuantifierPusher]: Distributing 4 conjuncts over 2 disjuncts [2020-11-09 16:50:47,298 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-09 16:50:47,305 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-11-09 16:50:47,307 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-11-09 16:50:47,309 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-11-09 16:50:47,311 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-09 16:50:47,316 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 6, 1] term [2020-11-09 16:50:47,317 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-09 16:50:47,338 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 5, 2, 7, 3, 2, 1] term [2020-11-09 16:50:47,340 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-09 16:50:47,346 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[3, 2, 7, 3, 2, 1] term [2020-11-09 16:50:47,346 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-11-09 16:50:47,348 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 4, 3, 2, 1] term [2020-11-09 16:50:47,348 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-09 16:50:47,351 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 5, 2, 7, 3, 2, 1] term [2020-11-09 16:50:47,351 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-09 16:50:47,356 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[3, 2, 7, 3, 2, 1] term [2020-11-09 16:50:47,356 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-11-09 16:50:47,358 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 4, 3, 2, 1] term [2020-11-09 16:50:47,358 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-09 16:50:47,360 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 6, 1] term [2020-11-09 16:50:47,360 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-09 16:50:47,363 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 5, 2, 7, 3, 2, 1] term [2020-11-09 16:50:47,364 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-09 16:50:47,367 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[3, 2, 7, 3, 2, 1] term [2020-11-09 16:50:47,367 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-11-09 16:50:47,369 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 4, 3, 2, 1] term [2020-11-09 16:50:47,369 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-09 16:50:51,144 WARN L194 SmtUtils]: Spent 3.77 s on a formula simplification. DAG size of input: 365 DAG size of output: 267 [2020-11-09 16:50:51,888 WARN L194 SmtUtils]: Spent 277.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 60 [2020-11-09 16:50:52,028 WARN L194 SmtUtils]: Spent 135.00 ms on a formula simplification that was a NOOP. DAG size: 55 [2020-11-09 16:50:52,649 WARN L194 SmtUtils]: Spent 619.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 86 [2020-11-09 16:50:52,651 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 5, 2, 3, 2, 1] term [2020-11-09 16:50:52,651 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-09 16:50:53,100 WARN L194 SmtUtils]: Spent 440.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 87 [2020-11-09 16:50:53,490 WARN L194 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 48 [2020-11-09 16:50:53,657 WARN L194 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 48 [2020-11-09 16:50:55,436 WARN L194 SmtUtils]: Spent 149.00 ms on a formula simplification that was a NOOP. DAG size: 81 [2020-11-09 16:50:55,584 WARN L194 SmtUtils]: Spent 145.00 ms on a formula simplification that was a NOOP. DAG size: 81 [2020-11-09 16:50:55,741 WARN L194 SmtUtils]: Spent 155.00 ms on a formula simplification that was a NOOP. DAG size: 81 [2020-11-09 16:50:55,885 WARN L194 SmtUtils]: Spent 142.00 ms on a formula simplification that was a NOOP. DAG size: 81 [2020-11-09 16:50:56,406 WARN L194 SmtUtils]: Spent 503.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 116 [2020-11-09 16:50:56,671 WARN L194 SmtUtils]: Spent 260.00 ms on a formula simplification that was a NOOP. DAG size: 112 [2020-11-09 16:50:57,198 WARN L194 SmtUtils]: Spent 524.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 116 [2020-11-09 16:50:57,443 WARN L194 SmtUtils]: Spent 241.00 ms on a formula simplification that was a NOOP. DAG size: 112 [2020-11-09 16:50:57,449 INFO L131 LiptonReduction]: Checked pairs total: 5760 [2020-11-09 16:50:57,449 INFO L133 LiptonReduction]: Total number of compositions: 91 [2020-11-09 16:50:57,457 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 38 places, 29 transitions, 73 flow [2020-11-09 16:50:57,541 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 1030 states. [2020-11-09 16:50:57,543 INFO L276 IsEmpty]: Start isEmpty. Operand 1030 states. [2020-11-09 16:50:57,551 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-11-09 16:50:57,551 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 16:50:57,552 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2020-11-09 16:50:57,554 INFO L429 AbstractCegarLoop]: === Iteration 1 === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 16:50:57,562 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 16:50:57,562 INFO L82 PathProgramCache]: Analyzing trace with hash -141166123, now seen corresponding path program 1 times [2020-11-09 16:50:57,578 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 16:50:57,579 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1278197098] [2020-11-09 16:50:57,579 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 16:50:57,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 16:50:57,850 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-09 16:50:57,853 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1278197098] [2020-11-09 16:50:57,854 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 16:50:57,854 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-11-09 16:50:57,855 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [340467023] [2020-11-09 16:50:57,856 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-11-09 16:50:57,860 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-11-09 16:50:57,877 INFO L252 McrAutomatonBuilder]: Finished intersection with 8 states and 7 transitions. [2020-11-09 16:50:57,878 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-11-09 16:50:57,883 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-11-09 16:50:57,884 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-09 16:50:57,884 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 16:50:57,903 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-09 16:50:57,904 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-09 16:50:57,906 INFO L87 Difference]: Start difference. First operand 1030 states. Second operand 3 states. [2020-11-09 16:50:58,050 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 16:50:58,050 INFO L93 Difference]: Finished difference Result 890 states and 2840 transitions. [2020-11-09 16:50:58,053 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-09 16:50:58,057 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 7 [2020-11-09 16:50:58,058 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 16:50:58,092 INFO L225 Difference]: With dead ends: 890 [2020-11-09 16:50:58,094 INFO L226 Difference]: Without dead ends: 650 [2020-11-09 16:50:58,096 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-09 16:50:58,124 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 650 states. [2020-11-09 16:50:58,209 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 650 to 650. [2020-11-09 16:50:58,210 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 650 states. [2020-11-09 16:50:58,222 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 650 states to 650 states and 2028 transitions. [2020-11-09 16:50:58,224 INFO L78 Accepts]: Start accepts. Automaton has 650 states and 2028 transitions. Word has length 7 [2020-11-09 16:50:58,226 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 16:50:58,226 INFO L481 AbstractCegarLoop]: Abstraction has 650 states and 2028 transitions. [2020-11-09 16:50:58,226 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-09 16:50:58,227 INFO L276 IsEmpty]: Start isEmpty. Operand 650 states and 2028 transitions. [2020-11-09 16:50:58,230 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-11-09 16:50:58,230 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 16:50:58,230 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 16:50:58,231 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-09 16:50:58,231 INFO L429 AbstractCegarLoop]: === Iteration 2 === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 16:50:58,235 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 16:50:58,235 INFO L82 PathProgramCache]: Analyzing trace with hash -704607506, now seen corresponding path program 1 times [2020-11-09 16:50:58,236 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 16:50:58,237 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1603584576] [2020-11-09 16:50:58,237 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 16:50:58,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 16:50:58,400 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-09 16:50:58,401 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1603584576] [2020-11-09 16:50:58,401 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 16:50:58,401 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-09 16:50:58,402 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1101454166] [2020-11-09 16:50:58,402 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-11-09 16:50:58,403 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-11-09 16:50:58,406 INFO L252 McrAutomatonBuilder]: Finished intersection with 11 states and 10 transitions. [2020-11-09 16:50:58,406 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-11-09 16:50:58,407 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-11-09 16:50:58,408 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-09 16:50:58,408 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 16:50:58,409 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-09 16:50:58,409 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-09 16:50:58,409 INFO L87 Difference]: Start difference. First operand 650 states and 2028 transitions. Second operand 4 states. [2020-11-09 16:50:58,480 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 16:50:58,481 INFO L93 Difference]: Finished difference Result 690 states and 2070 transitions. [2020-11-09 16:50:58,486 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-09 16:50:58,486 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 10 [2020-11-09 16:50:58,486 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 16:50:58,494 INFO L225 Difference]: With dead ends: 690 [2020-11-09 16:50:58,494 INFO L226 Difference]: Without dead ends: 570 [2020-11-09 16:50:58,495 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-11-09 16:50:58,498 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 570 states. [2020-11-09 16:50:58,534 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 570 to 570. [2020-11-09 16:50:58,535 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 570 states. [2020-11-09 16:50:58,539 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 570 states to 570 states and 1744 transitions. [2020-11-09 16:50:58,539 INFO L78 Accepts]: Start accepts. Automaton has 570 states and 1744 transitions. Word has length 10 [2020-11-09 16:50:58,539 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 16:50:58,539 INFO L481 AbstractCegarLoop]: Abstraction has 570 states and 1744 transitions. [2020-11-09 16:50:58,539 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-09 16:50:58,540 INFO L276 IsEmpty]: Start isEmpty. Operand 570 states and 1744 transitions. [2020-11-09 16:50:58,549 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-11-09 16:50:58,550 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 16:50:58,550 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 16:50:58,550 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-09 16:50:58,550 INFO L429 AbstractCegarLoop]: === Iteration 3 === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 16:50:58,555 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 16:50:58,556 INFO L82 PathProgramCache]: Analyzing trace with hash 1473373074, now seen corresponding path program 1 times [2020-11-09 16:50:58,560 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 16:50:58,561 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [772469020] [2020-11-09 16:50:58,561 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 16:50:58,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 16:50:58,673 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-09 16:50:58,673 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [772469020] [2020-11-09 16:50:58,674 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 16:50:58,674 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-09 16:50:58,674 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1139836249] [2020-11-09 16:50:58,674 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-11-09 16:50:58,677 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-11-09 16:50:58,679 INFO L252 McrAutomatonBuilder]: Finished intersection with 16 states and 18 transitions. [2020-11-09 16:50:58,680 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-11-09 16:50:58,694 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-11-09 16:50:58,694 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-09 16:50:58,694 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 16:50:58,694 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-09 16:50:58,695 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-09 16:50:58,695 INFO L87 Difference]: Start difference. First operand 570 states and 1744 transitions. Second operand 4 states. [2020-11-09 16:50:58,750 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 16:50:58,750 INFO L93 Difference]: Finished difference Result 634 states and 1876 transitions. [2020-11-09 16:50:58,762 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-09 16:50:58,762 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 12 [2020-11-09 16:50:58,762 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 16:50:58,770 INFO L225 Difference]: With dead ends: 634 [2020-11-09 16:50:58,770 INFO L226 Difference]: Without dead ends: 554 [2020-11-09 16:50:58,771 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-11-09 16:50:58,777 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 554 states. [2020-11-09 16:50:58,798 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 554 to 554. [2020-11-09 16:50:58,799 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 554 states. [2020-11-09 16:50:58,802 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 554 states to 554 states and 1684 transitions. [2020-11-09 16:50:58,803 INFO L78 Accepts]: Start accepts. Automaton has 554 states and 1684 transitions. Word has length 12 [2020-11-09 16:50:58,803 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 16:50:58,803 INFO L481 AbstractCegarLoop]: Abstraction has 554 states and 1684 transitions. [2020-11-09 16:50:58,803 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-09 16:50:58,804 INFO L276 IsEmpty]: Start isEmpty. Operand 554 states and 1684 transitions. [2020-11-09 16:50:58,806 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-11-09 16:50:58,806 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 16:50:58,806 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 16:50:58,807 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-11-09 16:50:58,807 INFO L429 AbstractCegarLoop]: === Iteration 4 === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 16:50:58,807 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 16:50:58,808 INFO L82 PathProgramCache]: Analyzing trace with hash -2143714500, now seen corresponding path program 1 times [2020-11-09 16:50:58,814 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 16:50:58,814 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1584194581] [2020-11-09 16:50:58,815 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 16:50:58,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 16:50:59,064 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-09 16:50:59,065 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1584194581] [2020-11-09 16:50:59,065 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 16:50:59,065 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-09 16:50:59,066 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1345968117] [2020-11-09 16:50:59,066 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-11-09 16:50:59,069 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-11-09 16:50:59,074 INFO L252 McrAutomatonBuilder]: Finished intersection with 26 states and 40 transitions. [2020-11-09 16:50:59,075 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-11-09 16:50:59,088 INFO L375 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 3, 3, 2, 3, 2, 1] term [2020-11-09 16:50:59,088 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-11-09 16:50:59,114 INFO L375 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 3, 3, 2, 1] term [2020-11-09 16:50:59,114 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-11-09 16:50:59,226 INFO L375 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 3, 3, 2, 3, 2, 1] term [2020-11-09 16:50:59,226 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-11-09 16:50:59,227 INFO L375 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 3, 3, 2, 1] term [2020-11-09 16:50:59,227 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-11-09 16:50:59,328 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-11-09 16:50:59,328 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-09 16:50:59,328 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 16:50:59,329 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-09 16:50:59,329 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-11-09 16:50:59,329 INFO L87 Difference]: Start difference. First operand 554 states and 1684 transitions. Second operand 6 states. [2020-11-09 16:50:59,493 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 16:50:59,493 INFO L93 Difference]: Finished difference Result 602 states and 1770 transitions. [2020-11-09 16:50:59,494 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-09 16:50:59,494 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 13 [2020-11-09 16:50:59,495 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 16:50:59,499 INFO L225 Difference]: With dead ends: 602 [2020-11-09 16:50:59,500 INFO L226 Difference]: Without dead ends: 530 [2020-11-09 16:50:59,500 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 10 SyntacticMatches, 2 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2020-11-09 16:50:59,503 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 530 states. [2020-11-09 16:50:59,517 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 530 to 530. [2020-11-09 16:50:59,517 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 530 states. [2020-11-09 16:50:59,521 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 530 states to 530 states and 1596 transitions. [2020-11-09 16:50:59,521 INFO L78 Accepts]: Start accepts. Automaton has 530 states and 1596 transitions. Word has length 13 [2020-11-09 16:50:59,521 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 16:50:59,522 INFO L481 AbstractCegarLoop]: Abstraction has 530 states and 1596 transitions. [2020-11-09 16:50:59,522 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-11-09 16:50:59,522 INFO L276 IsEmpty]: Start isEmpty. Operand 530 states and 1596 transitions. [2020-11-09 16:50:59,523 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-11-09 16:50:59,523 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 16:50:59,524 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 16:50:59,524 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-11-09 16:50:59,524 INFO L429 AbstractCegarLoop]: === Iteration 5 === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 16:50:59,524 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 16:50:59,524 INFO L82 PathProgramCache]: Analyzing trace with hash -851135848, now seen corresponding path program 1 times [2020-11-09 16:50:59,526 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 16:50:59,526 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [301495398] [2020-11-09 16:50:59,526 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 16:50:59,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 16:50:59,682 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-09 16:50:59,683 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [301495398] [2020-11-09 16:50:59,683 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 16:50:59,683 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-11-09 16:50:59,683 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [716632624] [2020-11-09 16:50:59,684 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-11-09 16:50:59,686 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-11-09 16:50:59,693 INFO L252 McrAutomatonBuilder]: Finished intersection with 32 states and 52 transitions. [2020-11-09 16:50:59,693 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-11-09 16:50:59,866 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 1 new interpolants: [9630#(and (= ~y$r_buff1_thd0~0 0) (= ~y$w_buff1_used~0 (* 256 (div ~y$w_buff1_used~0 256))) (= ~y$r_buff0_thd0~0 0))] [2020-11-09 16:50:59,866 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-11-09 16:50:59,866 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 16:50:59,867 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-11-09 16:50:59,867 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2020-11-09 16:50:59,867 INFO L87 Difference]: Start difference. First operand 530 states and 1596 transitions. Second operand 8 states. [2020-11-09 16:51:00,048 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 16:51:00,048 INFO L93 Difference]: Finished difference Result 610 states and 1788 transitions. [2020-11-09 16:51:00,049 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-09 16:51:00,050 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 14 [2020-11-09 16:51:00,050 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 16:51:00,054 INFO L225 Difference]: With dead ends: 610 [2020-11-09 16:51:00,054 INFO L226 Difference]: Without dead ends: 554 [2020-11-09 16:51:00,055 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=55, Unknown=0, NotChecked=0, Total=90 [2020-11-09 16:51:00,058 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 554 states. [2020-11-09 16:51:00,072 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 554 to 538. [2020-11-09 16:51:00,073 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 538 states. [2020-11-09 16:51:00,076 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 538 states to 538 states and 1606 transitions. [2020-11-09 16:51:00,076 INFO L78 Accepts]: Start accepts. Automaton has 538 states and 1606 transitions. Word has length 14 [2020-11-09 16:51:00,077 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 16:51:00,077 INFO L481 AbstractCegarLoop]: Abstraction has 538 states and 1606 transitions. [2020-11-09 16:51:00,077 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-11-09 16:51:00,077 INFO L276 IsEmpty]: Start isEmpty. Operand 538 states and 1606 transitions. [2020-11-09 16:51:00,079 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-11-09 16:51:00,079 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 16:51:00,079 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 16:51:00,079 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-11-09 16:51:00,079 INFO L429 AbstractCegarLoop]: === Iteration 6 === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 16:51:00,080 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 16:51:00,080 INFO L82 PathProgramCache]: Analyzing trace with hash -615473533, now seen corresponding path program 1 times [2020-11-09 16:51:00,082 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 16:51:00,082 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [926271756] [2020-11-09 16:51:00,082 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 16:51:00,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 16:51:00,267 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-09 16:51:00,268 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [926271756] [2020-11-09 16:51:00,268 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 16:51:00,268 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-11-09 16:51:00,269 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1449408249] [2020-11-09 16:51:00,269 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-11-09 16:51:00,272 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-11-09 16:51:00,280 INFO L252 McrAutomatonBuilder]: Finished intersection with 34 states and 55 transitions. [2020-11-09 16:51:00,280 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-11-09 16:51:00,456 INFO L375 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 3, 4, 2, 3, 2, 1] term [2020-11-09 16:51:00,457 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-11-09 16:51:00,458 INFO L375 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 3, 3, 2, 1] term [2020-11-09 16:51:00,458 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-11-09 16:51:00,463 INFO L375 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 3, 3, 2, 1] term [2020-11-09 16:51:00,464 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-11-09 16:51:00,465 INFO L375 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 2, 3, 3, 2, 2, 1] term [2020-11-09 16:51:00,465 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-11-09 16:51:00,466 INFO L375 QuantifierPusher]: Applying distributivity to a DISJUNCTION[4, 2, 3, 2, 2, 1] term [2020-11-09 16:51:00,467 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-11-09 16:51:00,519 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 1 new interpolants: [11329#(and (= ~y$w_buff1~0 0) (= ~y$r_buff1_thd2~0 0) (= ~y$w_buff1_used~0 (* 256 (div ~y$w_buff1_used~0 256))) (= ~y$r_buff0_thd0~0 0) (= ~y$r_buff0_thd2~0 0))] [2020-11-09 16:51:00,520 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-11-09 16:51:00,520 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 16:51:00,520 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-11-09 16:51:00,521 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2020-11-09 16:51:00,521 INFO L87 Difference]: Start difference. First operand 538 states and 1606 transitions. Second operand 9 states. [2020-11-09 16:51:00,819 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 16:51:00,820 INFO L93 Difference]: Finished difference Result 650 states and 1858 transitions. [2020-11-09 16:51:00,820 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-11-09 16:51:00,821 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 15 [2020-11-09 16:51:00,821 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 16:51:00,825 INFO L225 Difference]: With dead ends: 650 [2020-11-09 16:51:00,825 INFO L226 Difference]: Without dead ends: 530 [2020-11-09 16:51:00,826 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 16 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=45, Invalid=111, Unknown=0, NotChecked=0, Total=156 [2020-11-09 16:51:00,828 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 530 states. [2020-11-09 16:51:00,841 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 530 to 482. [2020-11-09 16:51:00,841 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 482 states. [2020-11-09 16:51:00,844 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 482 states to 482 states and 1408 transitions. [2020-11-09 16:51:00,844 INFO L78 Accepts]: Start accepts. Automaton has 482 states and 1408 transitions. Word has length 15 [2020-11-09 16:51:00,845 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 16:51:00,845 INFO L481 AbstractCegarLoop]: Abstraction has 482 states and 1408 transitions. [2020-11-09 16:51:00,845 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-11-09 16:51:00,845 INFO L276 IsEmpty]: Start isEmpty. Operand 482 states and 1408 transitions. [2020-11-09 16:51:00,846 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-11-09 16:51:00,846 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 16:51:00,847 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 16:51:00,847 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-11-09 16:51:00,847 INFO L429 AbstractCegarLoop]: === Iteration 7 === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 16:51:00,847 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 16:51:00,848 INFO L82 PathProgramCache]: Analyzing trace with hash 1409204827, now seen corresponding path program 1 times [2020-11-09 16:51:00,852 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 16:51:00,852 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [179719369] [2020-11-09 16:51:00,853 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 16:51:00,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 16:51:00,959 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-09 16:51:00,960 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [179719369] [2020-11-09 16:51:00,960 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 16:51:00,960 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-09 16:51:00,960 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [202390983] [2020-11-09 16:51:00,960 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-11-09 16:51:00,963 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-11-09 16:51:00,969 INFO L252 McrAutomatonBuilder]: Finished intersection with 32 states and 51 transitions. [2020-11-09 16:51:00,969 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-11-09 16:51:01,014 INFO L375 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 3, 3, 2, 2, 1] term [2020-11-09 16:51:01,014 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-11-09 16:51:01,015 INFO L375 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 2, 3, 3, 2, 2, 1] term [2020-11-09 16:51:01,016 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-11-09 16:51:01,017 INFO L375 QuantifierPusher]: Applying distributivity to a DISJUNCTION[4, 2, 3, 2, 2, 1] term [2020-11-09 16:51:01,017 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-11-09 16:51:01,053 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-11-09 16:51:01,078 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-11-09 16:51:01,087 INFO L375 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 3, 3, 2, 1] term [2020-11-09 16:51:01,087 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-11-09 16:51:01,088 INFO L375 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 2, 3, 3, 2, 2, 1] term [2020-11-09 16:51:01,089 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-11-09 16:51:01,090 INFO L375 QuantifierPusher]: Applying distributivity to a DISJUNCTION[4, 2, 3, 2, 2, 1] term [2020-11-09 16:51:01,090 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-11-09 16:51:01,120 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-11-09 16:51:01,129 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-11-09 16:51:01,145 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-11-09 16:51:01,154 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-11-09 16:51:01,162 INFO L375 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 3, 3, 2, 2, 1] term [2020-11-09 16:51:01,162 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-11-09 16:51:01,163 INFO L375 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 2, 3, 3, 2, 2, 1] term [2020-11-09 16:51:01,164 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-11-09 16:51:01,165 INFO L375 QuantifierPusher]: Applying distributivity to a DISJUNCTION[4, 2, 3, 2, 2, 1] term [2020-11-09 16:51:01,165 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-11-09 16:51:01,196 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-11-09 16:51:01,207 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-11-09 16:51:01,240 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-11-09 16:51:01,255 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 1 new interpolants: [12956#(not (= 3 ~__unbuffered_cnt~0))] [2020-11-09 16:51:01,255 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-09 16:51:01,256 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 16:51:01,256 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-09 16:51:01,256 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-11-09 16:51:01,256 INFO L87 Difference]: Start difference. First operand 482 states and 1408 transitions. Second operand 5 states. [2020-11-09 16:51:01,335 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 16:51:01,335 INFO L93 Difference]: Finished difference Result 334 states and 863 transitions. [2020-11-09 16:51:01,336 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-11-09 16:51:01,336 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 15 [2020-11-09 16:51:01,336 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 16:51:01,338 INFO L225 Difference]: With dead ends: 334 [2020-11-09 16:51:01,338 INFO L226 Difference]: Without dead ends: 214 [2020-11-09 16:51:01,338 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 14 SyntacticMatches, 2 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-11-09 16:51:01,339 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 214 states. [2020-11-09 16:51:01,344 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 214 to 214. [2020-11-09 16:51:01,344 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 214 states. [2020-11-09 16:51:01,345 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 214 states to 214 states and 478 transitions. [2020-11-09 16:51:01,346 INFO L78 Accepts]: Start accepts. Automaton has 214 states and 478 transitions. Word has length 15 [2020-11-09 16:51:01,346 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 16:51:01,346 INFO L481 AbstractCegarLoop]: Abstraction has 214 states and 478 transitions. [2020-11-09 16:51:01,346 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-09 16:51:01,346 INFO L276 IsEmpty]: Start isEmpty. Operand 214 states and 478 transitions. [2020-11-09 16:51:01,347 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-11-09 16:51:01,347 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 16:51:01,347 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 16:51:01,347 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-11-09 16:51:01,347 INFO L429 AbstractCegarLoop]: === Iteration 8 === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 16:51:01,348 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 16:51:01,348 INFO L82 PathProgramCache]: Analyzing trace with hash 1337391238, now seen corresponding path program 1 times [2020-11-09 16:51:01,350 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 16:51:01,350 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [902956424] [2020-11-09 16:51:01,350 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 16:51:01,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 16:51:01,425 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-09 16:51:01,426 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [902956424] [2020-11-09 16:51:01,426 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 16:51:01,426 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-09 16:51:01,427 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1076376457] [2020-11-09 16:51:01,427 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-11-09 16:51:01,430 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-11-09 16:51:01,438 INFO L252 McrAutomatonBuilder]: Finished intersection with 41 states and 62 transitions. [2020-11-09 16:51:01,438 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-11-09 16:51:01,451 INFO L375 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 3, 3, 2, 2, 1] term [2020-11-09 16:51:01,451 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-11-09 16:51:01,452 INFO L375 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 2, 3, 3, 2, 2, 1] term [2020-11-09 16:51:01,453 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-11-09 16:51:01,453 INFO L375 QuantifierPusher]: Applying distributivity to a DISJUNCTION[4, 2, 3, 2, 2, 1] term [2020-11-09 16:51:01,454 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-11-09 16:51:01,500 INFO L375 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 3, 3, 2, 1] term [2020-11-09 16:51:01,500 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-11-09 16:51:01,502 INFO L375 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 2, 3, 3, 2, 2, 1] term [2020-11-09 16:51:01,502 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-11-09 16:51:01,503 INFO L375 QuantifierPusher]: Applying distributivity to a DISJUNCTION[4, 2, 3, 2, 2, 1] term [2020-11-09 16:51:01,503 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-11-09 16:51:01,589 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-11-09 16:51:01,590 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-09 16:51:01,590 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 16:51:01,590 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-09 16:51:01,591 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-09 16:51:01,591 INFO L87 Difference]: Start difference. First operand 214 states and 478 transitions. Second operand 5 states. [2020-11-09 16:51:01,642 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 16:51:01,642 INFO L93 Difference]: Finished difference Result 285 states and 615 transitions. [2020-11-09 16:51:01,643 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-09 16:51:01,643 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 18 [2020-11-09 16:51:01,643 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 16:51:01,644 INFO L225 Difference]: With dead ends: 285 [2020-11-09 16:51:01,645 INFO L226 Difference]: Without dead ends: 127 [2020-11-09 16:51:01,645 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-11-09 16:51:01,646 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 127 states. [2020-11-09 16:51:01,649 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 127 to 127. [2020-11-09 16:51:01,649 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 127 states. [2020-11-09 16:51:01,650 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 127 states to 127 states and 244 transitions. [2020-11-09 16:51:01,650 INFO L78 Accepts]: Start accepts. Automaton has 127 states and 244 transitions. Word has length 18 [2020-11-09 16:51:01,650 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 16:51:01,650 INFO L481 AbstractCegarLoop]: Abstraction has 127 states and 244 transitions. [2020-11-09 16:51:01,650 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-09 16:51:01,650 INFO L276 IsEmpty]: Start isEmpty. Operand 127 states and 244 transitions. [2020-11-09 16:51:01,651 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-11-09 16:51:01,651 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 16:51:01,651 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 16:51:01,651 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-11-09 16:51:01,652 INFO L429 AbstractCegarLoop]: === Iteration 9 === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 16:51:01,652 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 16:51:01,652 INFO L82 PathProgramCache]: Analyzing trace with hash -717373716, now seen corresponding path program 2 times [2020-11-09 16:51:01,654 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 16:51:01,654 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [599177775] [2020-11-09 16:51:01,654 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 16:51:01,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 16:51:01,762 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-09 16:51:01,763 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [599177775] [2020-11-09 16:51:01,763 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 16:51:01,763 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-09 16:51:01,763 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [84881626] [2020-11-09 16:51:01,763 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-11-09 16:51:01,766 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-11-09 16:51:01,771 INFO L252 McrAutomatonBuilder]: Finished intersection with 22 states and 24 transitions. [2020-11-09 16:51:01,772 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-11-09 16:51:01,778 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-11-09 16:51:01,779 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-09 16:51:01,779 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 16:51:01,779 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-09 16:51:01,780 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-11-09 16:51:01,780 INFO L87 Difference]: Start difference. First operand 127 states and 244 transitions. Second operand 6 states. [2020-11-09 16:51:01,910 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 16:51:01,911 INFO L93 Difference]: Finished difference Result 178 states and 326 transitions. [2020-11-09 16:51:01,911 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-11-09 16:51:01,911 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 18 [2020-11-09 16:51:01,912 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 16:51:01,913 INFO L225 Difference]: With dead ends: 178 [2020-11-09 16:51:01,913 INFO L226 Difference]: Without dead ends: 125 [2020-11-09 16:51:01,914 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2020-11-09 16:51:01,915 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 125 states. [2020-11-09 16:51:01,918 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 125 to 121. [2020-11-09 16:51:01,918 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 121 states. [2020-11-09 16:51:01,919 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 121 states to 121 states and 216 transitions. [2020-11-09 16:51:01,919 INFO L78 Accepts]: Start accepts. Automaton has 121 states and 216 transitions. Word has length 18 [2020-11-09 16:51:01,919 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 16:51:01,919 INFO L481 AbstractCegarLoop]: Abstraction has 121 states and 216 transitions. [2020-11-09 16:51:01,919 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-11-09 16:51:01,919 INFO L276 IsEmpty]: Start isEmpty. Operand 121 states and 216 transitions. [2020-11-09 16:51:01,920 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-11-09 16:51:01,920 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 16:51:01,920 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 16:51:01,920 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-11-09 16:51:01,921 INFO L429 AbstractCegarLoop]: === Iteration 10 === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 16:51:01,921 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 16:51:01,921 INFO L82 PathProgramCache]: Analyzing trace with hash 1155310386, now seen corresponding path program 1 times [2020-11-09 16:51:01,927 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 16:51:01,927 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1538645549] [2020-11-09 16:51:01,927 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 16:51:02,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 16:51:02,087 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-09 16:51:02,088 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1538645549] [2020-11-09 16:51:02,088 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 16:51:02,088 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-11-09 16:51:02,088 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [950834519] [2020-11-09 16:51:02,088 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-11-09 16:51:02,092 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-11-09 16:51:02,100 INFO L252 McrAutomatonBuilder]: Finished intersection with 31 states and 41 transitions. [2020-11-09 16:51:02,100 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-11-09 16:51:02,166 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 1 new interpolants: [14709#(<= ~__unbuffered_cnt~0 0)] [2020-11-09 16:51:02,166 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-11-09 16:51:02,166 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 16:51:02,167 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-11-09 16:51:02,167 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-11-09 16:51:02,168 INFO L87 Difference]: Start difference. First operand 121 states and 216 transitions. Second operand 7 states. [2020-11-09 16:51:02,266 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 16:51:02,267 INFO L93 Difference]: Finished difference Result 99 states and 172 transitions. [2020-11-09 16:51:02,268 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-11-09 16:51:02,268 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 19 [2020-11-09 16:51:02,268 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 16:51:02,269 INFO L225 Difference]: With dead ends: 99 [2020-11-09 16:51:02,271 INFO L226 Difference]: Without dead ends: 37 [2020-11-09 16:51:02,272 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2020-11-09 16:51:02,272 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2020-11-09 16:51:02,273 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 37. [2020-11-09 16:51:02,273 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37 states. [2020-11-09 16:51:02,274 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 54 transitions. [2020-11-09 16:51:02,274 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 54 transitions. Word has length 19 [2020-11-09 16:51:02,274 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 16:51:02,274 INFO L481 AbstractCegarLoop]: Abstraction has 37 states and 54 transitions. [2020-11-09 16:51:02,274 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-11-09 16:51:02,274 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 54 transitions. [2020-11-09 16:51:02,275 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-11-09 16:51:02,275 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 16:51:02,275 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 16:51:02,275 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-11-09 16:51:02,275 INFO L429 AbstractCegarLoop]: === Iteration 11 === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 16:51:02,276 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 16:51:02,276 INFO L82 PathProgramCache]: Analyzing trace with hash 1615855003, now seen corresponding path program 1 times [2020-11-09 16:51:02,278 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 16:51:02,278 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [881724492] [2020-11-09 16:51:02,278 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 16:51:02,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-09 16:51:02,349 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-09 16:51:02,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-09 16:51:02,403 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-09 16:51:02,473 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-09 16:51:02,473 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-11-09 16:51:02,474 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-11-09 16:51:02,636 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.11 04:51:02 BasicIcfg [2020-11-09 16:51:02,637 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-09 16:51:02,639 INFO L168 Benchmark]: Toolchain (without parser) took 26387.37 ms. Allocated memory was 157.3 MB in the beginning and 398.5 MB in the end (delta: 241.2 MB). Free memory was 131.7 MB in the beginning and 338.9 MB in the end (delta: -207.2 MB). Peak memory consumption was 34.3 MB. Max. memory is 8.0 GB. [2020-11-09 16:51:02,639 INFO L168 Benchmark]: CDTParser took 0.77 ms. Allocated memory is still 125.8 MB. Free memory was 101.6 MB in the beginning and 101.5 MB in the end (delta: 131.1 kB). There was no memory consumed. Max. memory is 8.0 GB. [2020-11-09 16:51:02,640 INFO L168 Benchmark]: CACSL2BoogieTranslator took 987.70 ms. Allocated memory is still 157.3 MB. Free memory was 131.0 MB in the beginning and 130.3 MB in the end (delta: 696.2 kB). Peak memory consumption was 31.6 MB. Max. memory is 8.0 GB. [2020-11-09 16:51:02,641 INFO L168 Benchmark]: Boogie Procedure Inliner took 116.48 ms. Allocated memory is still 157.3 MB. Free memory was 130.3 MB in the beginning and 127.7 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2020-11-09 16:51:02,644 INFO L168 Benchmark]: Boogie Preprocessor took 84.91 ms. Allocated memory is still 157.3 MB. Free memory was 127.7 MB in the beginning and 125.1 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2020-11-09 16:51:02,645 INFO L168 Benchmark]: RCFGBuilder took 2584.34 ms. Allocated memory was 157.3 MB in the beginning and 188.7 MB in the end (delta: 31.5 MB). Free memory was 125.1 MB in the beginning and 131.8 MB in the end (delta: -6.7 MB). Peak memory consumption was 64.8 MB. Max. memory is 8.0 GB. [2020-11-09 16:51:02,649 INFO L168 Benchmark]: TraceAbstraction took 22590.88 ms. Allocated memory was 188.7 MB in the beginning and 398.5 MB in the end (delta: 209.7 MB). Free memory was 131.2 MB in the beginning and 338.9 MB in the end (delta: -207.7 MB). Peak memory consumption was 2.0 MB. Max. memory is 8.0 GB. [2020-11-09 16:51:02,657 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.77 ms. Allocated memory is still 125.8 MB. Free memory was 101.6 MB in the beginning and 101.5 MB in the end (delta: 131.1 kB). There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 987.70 ms. Allocated memory is still 157.3 MB. Free memory was 131.0 MB in the beginning and 130.3 MB in the end (delta: 696.2 kB). Peak memory consumption was 31.6 MB. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 116.48 ms. Allocated memory is still 157.3 MB. Free memory was 130.3 MB in the beginning and 127.7 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 84.91 ms. Allocated memory is still 157.3 MB. Free memory was 127.7 MB in the beginning and 125.1 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 2584.34 ms. Allocated memory was 157.3 MB in the beginning and 188.7 MB in the end (delta: 31.5 MB). Free memory was 125.1 MB in the beginning and 131.8 MB in the end (delta: -6.7 MB). Peak memory consumption was 64.8 MB. Max. memory is 8.0 GB. * TraceAbstraction took 22590.88 ms. Allocated memory was 188.7 MB in the beginning and 398.5 MB in the end (delta: 209.7 MB). Free memory was 131.2 MB in the beginning and 338.9 MB in the end (delta: -207.7 MB). Peak memory consumption was 2.0 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 1040 VarBasedMoverChecksPositive, 38 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 0 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 96 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 17.1s, 111 PlacesBefore, 38 PlacesAfterwards, 104 TransitionsBefore, 29 TransitionsAfterwards, 1922 CoEnabledTransitionPairs, 7 FixpointIterations, 37 TrivialSequentialCompositions, 41 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 11 ConcurrentYvCompositions, 2 ChoiceCompositions, 91 TotalNumberOfCompositions, 5760 MoverChecksTotal - CounterExampleResult [Line: 17]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L709] 0 int __unbuffered_cnt = 0; [L711] 0 int __unbuffered_p2_EAX = 0; [L713] 0 int __unbuffered_p2_EBX = 0; [L715] 0 int a = 0; [L716] 0 _Bool main$tmp_guard0; [L717] 0 _Bool main$tmp_guard1; [L719] 0 int x = 0; [L721] 0 int y = 0; [L722] 0 _Bool y$flush_delayed; [L723] 0 int y$mem_tmp; [L724] 0 _Bool y$r_buff0_thd0; [L725] 0 _Bool y$r_buff0_thd1; [L726] 0 _Bool y$r_buff0_thd2; [L727] 0 _Bool y$r_buff0_thd3; [L728] 0 _Bool y$r_buff1_thd0; [L729] 0 _Bool y$r_buff1_thd1; [L730] 0 _Bool y$r_buff1_thd2; [L731] 0 _Bool y$r_buff1_thd3; [L732] 0 _Bool y$read_delayed; [L733] 0 int *y$read_delayed_var; [L734] 0 int y$w_buff0; [L735] 0 _Bool y$w_buff0_used; [L736] 0 int y$w_buff1; [L737] 0 _Bool y$w_buff1_used; [L739] 0 int z = 0; [L740] 0 _Bool weak$$choice0; [L741] 0 _Bool weak$$choice2; [L823] 0 pthread_t t1202; [L824] FCALL, FORK 0 pthread_create(&t1202, ((void *)0), P0, ((void *)0)) VAL [__unbuffered_cnt=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] [L825] 0 pthread_t t1203; [L826] FCALL, FORK 0 pthread_create(&t1203, ((void *)0), P1, ((void *)0)) VAL [__unbuffered_cnt=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] [L827] 0 pthread_t t1204; [L828] FCALL, FORK 0 pthread_create(&t1204, ((void *)0), P2, ((void *)0)) VAL [__unbuffered_cnt=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] [L780] 3 y$w_buff1 = y$w_buff0 [L781] 3 y$w_buff0 = 2 [L782] 3 y$w_buff1_used = y$w_buff0_used [L783] 3 y$w_buff0_used = (_Bool)1 [L18] COND FALSE 3 !(!expression) [L785] 3 y$r_buff1_thd0 = y$r_buff0_thd0 [L786] 3 y$r_buff1_thd1 = y$r_buff0_thd1 [L787] 3 y$r_buff1_thd2 = y$r_buff0_thd2 [L788] 3 y$r_buff1_thd3 = y$r_buff0_thd3 [L789] 3 y$r_buff0_thd3 = (_Bool)1 [L792] 3 z = 1 VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, __unbuffered_p2_EBX=0, a=0, arg={0:0}, arg={0:0}, main$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] [L795] 3 __unbuffered_p2_EAX = z VAL [__unbuffered_cnt=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] [L798] 3 __unbuffered_p2_EBX = a VAL [__unbuffered_cnt=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] [L745] 1 a = 1 VAL [__unbuffered_cnt=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] [L748] 1 x = 1 VAL [__unbuffered_cnt=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=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] [L753] 1 __unbuffered_cnt = __unbuffered_cnt + 1 [L755] 1 return 0; [L760] 2 x = 2 VAL [\result={0:0}, __unbuffered_cnt=1, __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=2, 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] [L763] 2 y = 1 VAL [\result={0:0}, __unbuffered_cnt=1, __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=2, 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] [L801] 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) [L801] 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) [L802] EXPR 3 y$w_buff0_used && y$r_buff0_thd3 ? (_Bool)0 : y$w_buff0_used [L802] 3 y$w_buff0_used = y$w_buff0_used && y$r_buff0_thd3 ? (_Bool)0 : y$w_buff0_used [L803] EXPR 3 y$w_buff0_used && y$r_buff0_thd3 || y$w_buff1_used && y$r_buff1_thd3 ? (_Bool)0 : y$w_buff1_used [L803] 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 [L804] EXPR 3 y$w_buff0_used && y$r_buff0_thd3 ? (_Bool)0 : y$r_buff0_thd3 [L804] 3 y$r_buff0_thd3 = y$w_buff0_used && y$r_buff0_thd3 ? (_Bool)0 : y$r_buff0_thd3 [L805] EXPR 3 y$w_buff0_used && y$r_buff0_thd3 || y$w_buff1_used && y$r_buff1_thd3 ? (_Bool)0 : y$r_buff1_thd3 [L805] 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 [L808] 3 __unbuffered_cnt = __unbuffered_cnt + 1 [L810] 3 return 0; [L766] 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) [L766] EXPR 2 y$w_buff1_used && y$r_buff1_thd2 ? y$w_buff1 : y [L766] EXPR 2 y$w_buff0_used && y$r_buff0_thd2 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd2 ? y$w_buff1 : y) [L766] 2 y = y$w_buff0_used && y$r_buff0_thd2 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd2 ? y$w_buff1 : y) [L767] EXPR 2 y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : y$w_buff0_used [L767] 2 y$w_buff0_used = y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : y$w_buff0_used [L768] EXPR 2 y$w_buff0_used && y$r_buff0_thd2 || y$w_buff1_used && y$r_buff1_thd2 ? (_Bool)0 : y$w_buff1_used [L768] 2 y$w_buff1_used = y$w_buff0_used && y$r_buff0_thd2 || y$w_buff1_used && y$r_buff1_thd2 ? (_Bool)0 : y$w_buff1_used [L769] EXPR 2 y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : y$r_buff0_thd2 [L769] 2 y$r_buff0_thd2 = y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : y$r_buff0_thd2 [L770] EXPR 2 y$w_buff0_used && y$r_buff0_thd2 || y$w_buff1_used && y$r_buff1_thd2 ? (_Bool)0 : y$r_buff1_thd2 [L770] 2 y$r_buff1_thd2 = y$w_buff0_used && y$r_buff0_thd2 || y$w_buff1_used && y$r_buff1_thd2 ? (_Bool)0 : y$r_buff1_thd2 [L773] 2 __unbuffered_cnt = __unbuffered_cnt + 1 [L775] 2 return 0; [L830] 0 main$tmp_guard0 = __unbuffered_cnt == 3 [L3] COND FALSE 0 !(!cond) [L834] 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) [L834] EXPR 0 y$w_buff1_used && y$r_buff1_thd0 ? y$w_buff1 : y [L834] EXPR 0 y$w_buff0_used && y$r_buff0_thd0 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd0 ? y$w_buff1 : y) [L834] 0 y = y$w_buff0_used && y$r_buff0_thd0 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd0 ? y$w_buff1 : y) [L835] EXPR 0 y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$w_buff0_used [L835] 0 y$w_buff0_used = y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$w_buff0_used [L836] EXPR 0 y$w_buff0_used && y$r_buff0_thd0 || y$w_buff1_used && y$r_buff1_thd0 ? (_Bool)0 : y$w_buff1_used [L836] 0 y$w_buff1_used = y$w_buff0_used && y$r_buff0_thd0 || y$w_buff1_used && y$r_buff1_thd0 ? (_Bool)0 : y$w_buff1_used [L837] EXPR 0 y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$r_buff0_thd0 [L837] 0 y$r_buff0_thd0 = y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$r_buff0_thd0 [L838] EXPR 0 y$w_buff0_used && y$r_buff0_thd0 || y$w_buff1_used && y$r_buff1_thd0 ? (_Bool)0 : y$r_buff1_thd0 [L838] 0 y$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 [L841] 0 weak$$choice0 = __VERIFIER_nondet_bool() [L842] 0 weak$$choice2 = __VERIFIER_nondet_bool() [L843] 0 y$flush_delayed = weak$$choice2 [L844] 0 y$mem_tmp = y [L845] EXPR 0 !y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y : (y$w_buff0_used && y$r_buff0_thd0 ? y$w_buff0 : y$w_buff1) [L845] 0 y = !y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y : (y$w_buff0_used && y$r_buff0_thd0 ? y$w_buff0 : y$w_buff1) [L846] EXPR 0 weak$$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$w_buff0)) [L846] EXPR 0 !y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$w_buff0 : (y$w_buff0_used && y$r_buff0_thd0 ? y$w_buff0 : y$w_buff0) [L846] EXPR 0 weak$$choice2 ? y$w_buff0 : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$w_buff0 : (y$w_buff0_used && y$r_buff0_thd0 ? y$w_buff0 : y$w_buff0)) [L846] 0 y$w_buff0 = weak$$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)) [L847] EXPR 0 weak$$choice2 ? y$w_buff1 : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$w_buff1 : (y$w_buff0_used && y$r_buff0_thd0 ? y$w_buff1 : y$w_buff1)) [L847] EXPR 0 !y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$w_buff1 : (y$w_buff0_used && y$r_buff0_thd0 ? y$w_buff1 : y$w_buff1) [L847] EXPR 0 weak$$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$w_buff1)) [L847] 0 y$w_buff1 = weak$$choice2 ? y$w_buff1 : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$w_buff1 : (y$w_buff0_used && y$r_buff0_thd0 ? y$w_buff1 : y$w_buff1)) [L848] EXPR 0 weak$$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)) [L848] 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) [L848] EXPR 0 weak$$choice2 ? y$w_buff0_used : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$w_buff0_used : (y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$w_buff0_used)) [L848] 0 y$w_buff0_used = weak$$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)) [L849] EXPR 0 weak$$choice2 ? y$w_buff1_used : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$w_buff1_used : (y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : (_Bool)0)) [L849] EXPR 0 !y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$w_buff1_used : (y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : (_Bool)0) [L849] EXPR 0 weak$$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$r_buff0_thd0 ? (_Bool)0 : (_Bool)0)) [L849] 0 y$w_buff1_used = weak$$choice2 ? y$w_buff1_used : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$w_buff1_used : (y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : (_Bool)0)) [L850] EXPR 0 weak$$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)) [L850] 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) [L850] EXPR 0 weak$$choice2 ? y$r_buff0_thd0 : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$r_buff0_thd0 : (y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$r_buff0_thd0)) [L850] 0 y$r_buff0_thd0 = weak$$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)) [L851] EXPR 0 weak$$choice2 ? y$r_buff1_thd0 : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$r_buff1_thd0 : (y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : (_Bool)0)) [L851] EXPR 0 !y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$r_buff1_thd0 : (y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : (_Bool)0) [L851] EXPR 0 weak$$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$r_buff0_thd0 ? (_Bool)0 : (_Bool)0)) [L851] 0 y$r_buff1_thd0 = weak$$choice2 ? y$r_buff1_thd0 : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$r_buff1_thd0 : (y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : (_Bool)0)) [L852] 0 main$tmp_guard1 = !(x == 2 && y == 2 && __unbuffered_p2_EAX == 1 && __unbuffered_p2_EBX == 0) [L853] EXPR 0 y$flush_delayed ? y$mem_tmp : y [L853] 0 y = y$flush_delayed ? y$mem_tmp : y [L854] 0 y$flush_delayed = (_Bool)0 [L18] COND TRUE 0 !expression [L17] COND FALSE 0 !(0) [L17] 0 __assert_fail ("0", "mix045_pso.opt.c", 8, __extension__ __PRETTY_FUNCTION__) VAL [\result={0:0}, \result={0:0}, __unbuffered_cnt=3, __unbuffered_p2_EAX=1, __unbuffered_p2_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, weak$$choice0=49, weak$$choice2=0, x=2, 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, 102 locations, 2 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 22.2s, OverallIterations: 11, TraceHistogramMax: 1, AutomataDifference: 1.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 17.3s, HoareTripleCheckerStatistics: 300 SDtfs, 338 SDslu, 611 SDs, 0 SdLazy, 256 SolverSat, 83 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 158 GetRequests, 98 SyntacticMatches, 5 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 0.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1030occurred 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, 10 MinimizatonAttempts, 68 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 0.9s InterpolantComputationTime, 163 NumberOfCodeBlocks, 163 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 131 ConstructedInterpolants, 0 QuantifiedInterpolants, 11077 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 10 InterpolantComputations, 10 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...