/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/automizer/mcr/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-McrAutomaton-WP.epf -i ../../../trunk/examples/svcomp/pthread-wmm/mix056_rmo.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c7e336b [2020-10-06 00:48:27,009 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-06 00:48:27,012 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-06 00:48:27,035 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-06 00:48:27,035 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-06 00:48:27,036 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-06 00:48:27,038 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-06 00:48:27,039 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-06 00:48:27,041 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-06 00:48:27,042 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-06 00:48:27,043 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-06 00:48:27,044 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-06 00:48:27,044 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-06 00:48:27,045 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-06 00:48:27,046 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-06 00:48:27,047 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-06 00:48:27,048 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-06 00:48:27,049 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-06 00:48:27,050 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-06 00:48:27,052 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-06 00:48:27,053 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-06 00:48:27,054 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-06 00:48:27,055 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-06 00:48:27,056 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-06 00:48:27,058 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-10-06 00:48:27,061 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-06 00:48:27,062 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-06 00:48:27,062 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-06 00:48:27,063 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-06 00:48:27,064 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-06 00:48:27,064 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-06 00:48:27,065 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-06 00:48:27,065 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-06 00:48:27,065 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-06 00:48:27,066 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-06 00:48:27,067 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-06 00:48:27,067 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/mcr/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-McrAutomaton-WP.epf [2020-10-06 00:48:27,093 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-06 00:48:27,094 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-06 00:48:27,095 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-06 00:48:27,095 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-06 00:48:27,095 INFO L138 SettingsManager]: * Use SBE=true [2020-10-06 00:48:27,095 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-06 00:48:27,096 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-06 00:48:27,096 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-06 00:48:27,096 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-06 00:48:27,096 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-06 00:48:27,096 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-06 00:48:27,097 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-06 00:48:27,097 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-06 00:48:27,097 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-06 00:48:27,097 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-06 00:48:27,097 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-06 00:48:27,097 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-06 00:48:27,098 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-06 00:48:27,098 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-06 00:48:27,098 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-06 00:48:27,098 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-06 00:48:27,098 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-06 00:48:27,099 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-06 00:48:27,099 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_NestedInterpolation [2020-10-06 00:48:27,099 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-06 00:48:27,099 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-06 00:48:27,099 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-06 00:48:27,100 INFO L138 SettingsManager]: * Override the interpolant automaton setting of the refinement strategy=true [2020-10-06 00:48:27,100 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=VARIABLE_BASED_MOVER_CHECK [2020-10-06 00:48:27,100 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-06 00:48:27,100 INFO L138 SettingsManager]: * Interpolant automaton=MCR [2020-10-06 00:48:27,374 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-06 00:48:27,385 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-06 00:48:27,389 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-06 00:48:27,390 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-06 00:48:27,390 INFO L275 PluginConnector]: CDTParser initialized [2020-10-06 00:48:27,391 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/mix056_rmo.opt.i [2020-10-06 00:48:27,449 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/652c3bcaf/40c51f106e7548f495e97b28cfef44b3/FLAG9e833373b [2020-10-06 00:48:27,988 INFO L306 CDTParser]: Found 1 translation units. [2020-10-06 00:48:27,988 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/mix056_rmo.opt.i [2020-10-06 00:48:28,011 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/652c3bcaf/40c51f106e7548f495e97b28cfef44b3/FLAG9e833373b [2020-10-06 00:48:28,258 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/652c3bcaf/40c51f106e7548f495e97b28cfef44b3 [2020-10-06 00:48:28,268 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-06 00:48:28,270 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-10-06 00:48:28,271 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-06 00:48:28,271 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-06 00:48:28,274 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-06 00:48:28,275 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.10 12:48:28" (1/1) ... [2020-10-06 00:48:28,278 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@46952a4e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 12:48:28, skipping insertion in model container [2020-10-06 00:48:28,278 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.10 12:48:28" (1/1) ... [2020-10-06 00:48:28,286 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-06 00:48:28,353 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-06 00:48:28,866 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-06 00:48:28,878 INFO L203 MainTranslator]: Completed pre-run [2020-10-06 00:48:28,972 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-06 00:48:29,043 INFO L208 MainTranslator]: Completed translation [2020-10-06 00:48:29,044 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 12:48:29 WrapperNode [2020-10-06 00:48:29,044 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-06 00:48:29,045 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-06 00:48:29,045 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-06 00:48:29,045 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-06 00:48:29,054 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 12:48:29" (1/1) ... [2020-10-06 00:48:29,076 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 12:48:29" (1/1) ... [2020-10-06 00:48:29,110 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-06 00:48:29,110 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-06 00:48:29,111 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-06 00:48:29,111 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-06 00:48:29,119 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 12:48:29" (1/1) ... [2020-10-06 00:48:29,119 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 12:48:29" (1/1) ... [2020-10-06 00:48:29,124 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 12:48:29" (1/1) ... [2020-10-06 00:48:29,124 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 12:48:29" (1/1) ... [2020-10-06 00:48:29,134 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 12:48:29" (1/1) ... [2020-10-06 00:48:29,138 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 12:48:29" (1/1) ... [2020-10-06 00:48:29,141 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 12:48:29" (1/1) ... [2020-10-06 00:48:29,146 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-06 00:48:29,146 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-06 00:48:29,146 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-06 00:48:29,147 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-06 00:48:29,147 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 12:48:29" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-06 00:48:29,213 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-06 00:48:29,213 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-10-06 00:48:29,214 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-06 00:48:29,214 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-06 00:48:29,214 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-10-06 00:48:29,214 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-10-06 00:48:29,215 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-10-06 00:48:29,216 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-10-06 00:48:29,216 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-10-06 00:48:29,217 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-10-06 00:48:29,218 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-10-06 00:48:29,218 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-06 00:48:29,218 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-06 00:48:29,220 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-10-06 00:48:31,070 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-06 00:48:31,070 INFO L298 CfgBuilder]: Removed 10 assume(true) statements. [2020-10-06 00:48:31,073 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.10 12:48:31 BoogieIcfgContainer [2020-10-06 00:48:31,073 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-06 00:48:31,074 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-06 00:48:31,074 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-06 00:48:31,077 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-06 00:48:31,078 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.10 12:48:28" (1/3) ... [2020-10-06 00:48:31,079 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6a608679 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.10 12:48:31, skipping insertion in model container [2020-10-06 00:48:31,079 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 12:48:29" (2/3) ... [2020-10-06 00:48:31,079 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6a608679 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.10 12:48:31, skipping insertion in model container [2020-10-06 00:48:31,079 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.10 12:48:31" (3/3) ... [2020-10-06 00:48:31,081 INFO L109 eAbstractionObserver]: Analyzing ICFG mix056_rmo.opt.i [2020-10-06 00:48:31,092 WARN L146 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-10-06 00:48:31,092 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-06 00:48:31,100 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2020-10-06 00:48:31,101 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-10-06 00:48:31,129 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:48:31,129 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:48:31,129 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:48:31,130 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:48:31,130 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:48:31,130 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:48:31,131 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:48:31,131 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:48:31,131 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:48:31,131 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:48:31,132 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:48:31,132 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:48:31,132 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:48:31,132 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:48:31,132 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:48:31,133 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:48:31,133 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:48:31,133 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:48:31,134 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:48:31,134 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:48:31,134 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:48:31,134 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:48:31,135 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:48:31,135 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:48:31,135 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:48:31,136 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:48:31,136 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:48:31,136 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:48:31,136 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:48:31,136 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:48:31,137 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:48:31,137 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:48:31,137 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:48:31,137 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:48:31,137 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:48:31,138 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:48:31,142 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:48:31,142 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:48:31,142 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:48:31,142 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:48:31,143 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:48:31,143 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:48:31,143 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:48:31,143 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:48:31,144 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:48:31,144 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:48:31,147 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:48:31,147 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:48:31,147 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:48:31,147 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:48:31,148 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:48:31,148 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:48:31,148 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:48:31,148 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:48:31,148 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:48:31,149 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:48:31,149 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:48:31,149 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:48:31,151 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:48:31,151 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:48:31,151 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:48:31,151 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:48:31,168 INFO L251 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2020-10-06 00:48:31,191 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-06 00:48:31,191 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-06 00:48:31,191 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-06 00:48:31,192 INFO L378 AbstractCegarLoop]: Backedges is MCR [2020-10-06 00:48:31,192 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-06 00:48:31,192 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-06 00:48:31,192 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-06 00:48:31,192 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-06 00:48:31,209 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 99 places, 91 transitions, 197 flow [2020-10-06 00:48:31,211 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 99 places, 91 transitions, 197 flow [2020-10-06 00:48:31,255 INFO L129 PetriNetUnfolder]: 2/88 cut-off events. [2020-10-06 00:48:31,255 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-10-06 00:48:31,260 INFO L80 FinitePrefix]: Finished finitePrefix Result has 98 conditions, 88 events. 2/88 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 63 event pairs, 0 based on Foata normal form. 0/84 useless extension candidates. Maximal degree in co-relation 59. Up to 2 conditions per place. [2020-10-06 00:48:31,263 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 99 places, 91 transitions, 197 flow [2020-10-06 00:48:31,285 INFO L129 PetriNetUnfolder]: 2/88 cut-off events. [2020-10-06 00:48:31,285 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-10-06 00:48:31,286 INFO L80 FinitePrefix]: Finished finitePrefix Result has 98 conditions, 88 events. 2/88 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 63 event pairs, 0 based on Foata normal form. 0/84 useless extension candidates. Maximal degree in co-relation 59. Up to 2 conditions per place. [2020-10-06 00:48:31,288 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 1536 [2020-10-06 00:48:31,289 INFO L182 etLargeBlockEncoding]: Variable Check. [2020-10-06 00:48:31,765 WARN L193 SmtUtils]: Spent 278.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 58 [2020-10-06 00:48:32,788 WARN L193 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 58 [2020-10-06 00:48:34,077 WARN L193 SmtUtils]: Spent 1.07 s on a formula simplification. DAG size of input: 229 DAG size of output: 188 [2020-10-06 00:48:34,126 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[3, 2, 5, 3, 2, 1] term [2020-10-06 00:48:34,126 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-10-06 00:48:34,131 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[3, 2, 4, 3, 1] term [2020-10-06 00:48:34,132 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-10-06 00:48:34,832 WARN L193 SmtUtils]: Spent 691.00 ms on a formula simplification. DAG size of input: 144 DAG size of output: 106 [2020-10-06 00:48:35,833 WARN L193 SmtUtils]: Spent 995.00 ms on a formula simplification. DAG size of input: 229 DAG size of output: 188 [2020-10-06 00:48:35,867 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[3, 2, 5, 3, 2, 1] term [2020-10-06 00:48:35,868 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-10-06 00:48:35,870 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[3, 2, 4, 3, 1] term [2020-10-06 00:48:35,871 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-10-06 00:48:36,889 WARN L193 SmtUtils]: Spent 1.01 s on a formula simplification. DAG size of input: 144 DAG size of output: 107 [2020-10-06 00:48:39,222 WARN L193 SmtUtils]: Spent 1.98 s on a formula simplification. DAG size of input: 243 DAG size of output: 203 [2020-10-06 00:48:39,247 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[3, 2, 5, 3, 2, 2, 1] term [2020-10-06 00:48:39,247 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-10-06 00:48:39,248 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[3, 2, 4, 3, 1] term [2020-10-06 00:48:39,249 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-10-06 00:48:40,585 WARN L193 SmtUtils]: Spent 1.32 s on a formula simplification. DAG size of input: 159 DAG size of output: 130 [2020-10-06 00:48:40,853 WARN L193 SmtUtils]: Spent 244.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 85 [2020-10-06 00:48:40,959 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 83 [2020-10-06 00:48:40,967 INFO L206 etLargeBlockEncoding]: Checked pairs total: 4008 [2020-10-06 00:48:40,968 INFO L214 etLargeBlockEncoding]: Total number of compositions: 78 [2020-10-06 00:48:40,971 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 35 places, 25 transitions, 65 flow [2020-10-06 00:48:41,011 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 650 states. [2020-10-06 00:48:41,014 INFO L276 IsEmpty]: Start isEmpty. Operand 650 states. [2020-10-06 00:48:41,020 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-10-06 00:48:41,020 INFO L414 BasicCegarLoop]: Found error trace [2020-10-06 00:48:41,021 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2020-10-06 00:48:41,021 INFO L427 AbstractCegarLoop]: === Iteration 1 === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-06 00:48:41,027 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-06 00:48:41,027 INFO L82 PathProgramCache]: Analyzing trace with hash 1913445642, now seen corresponding path program 1 times [2020-10-06 00:48:41,054 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-06 00:48:41,055 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2125021272] [2020-10-06 00:48:41,055 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-06 00:48:41,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-06 00:48:41,281 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-06 00:48:41,282 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2125021272] [2020-10-06 00:48:41,283 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-06 00:48:41,283 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-10-06 00:48:41,284 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [151502788] [2020-10-06 00:48:41,285 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-06 00:48:41,288 INFO L255 McrAutomatonBuilder]: Started intersection. [2020-10-06 00:48:41,302 INFO L258 McrAutomatonBuilder]: Finished intersection with 8 states and 7 transitions. [2020-10-06 00:48:41,302 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-06 00:48:41,307 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-06 00:48:41,307 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-06 00:48:41,308 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-06 00:48:41,322 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-06 00:48:41,323 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-06 00:48:41,325 INFO L87 Difference]: Start difference. First operand 650 states. Second operand 3 states. [2020-10-06 00:48:41,440 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-06 00:48:41,440 INFO L93 Difference]: Finished difference Result 550 states and 1693 transitions. [2020-10-06 00:48:41,444 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-06 00:48:41,446 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 7 [2020-10-06 00:48:41,446 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-06 00:48:41,475 INFO L225 Difference]: With dead ends: 550 [2020-10-06 00:48:41,475 INFO L226 Difference]: Without dead ends: 450 [2020-10-06 00:48:41,477 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-06 00:48:41,514 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 450 states. [2020-10-06 00:48:41,563 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 450 to 450. [2020-10-06 00:48:41,565 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 450 states. [2020-10-06 00:48:41,570 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 450 states to 450 states and 1358 transitions. [2020-10-06 00:48:41,571 INFO L78 Accepts]: Start accepts. Automaton has 450 states and 1358 transitions. Word has length 7 [2020-10-06 00:48:41,572 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-06 00:48:41,572 INFO L479 AbstractCegarLoop]: Abstraction has 450 states and 1358 transitions. [2020-10-06 00:48:41,573 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-06 00:48:41,573 INFO L276 IsEmpty]: Start isEmpty. Operand 450 states and 1358 transitions. [2020-10-06 00:48:41,574 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-10-06 00:48:41,574 INFO L414 BasicCegarLoop]: Found error trace [2020-10-06 00:48:41,574 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-06 00:48:41,574 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-06 00:48:41,575 INFO L427 AbstractCegarLoop]: === Iteration 2 === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-06 00:48:41,575 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-06 00:48:41,575 INFO L82 PathProgramCache]: Analyzing trace with hash 575294358, now seen corresponding path program 1 times [2020-10-06 00:48:41,577 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-06 00:48:41,577 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [408965680] [2020-10-06 00:48:41,577 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-06 00:48:41,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-06 00:48:41,717 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-06 00:48:41,718 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [408965680] [2020-10-06 00:48:41,718 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-06 00:48:41,718 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-10-06 00:48:41,718 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [752157006] [2020-10-06 00:48:41,719 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-06 00:48:41,720 INFO L255 McrAutomatonBuilder]: Started intersection. [2020-10-06 00:48:41,722 INFO L258 McrAutomatonBuilder]: Finished intersection with 10 states and 9 transitions. [2020-10-06 00:48:41,722 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-06 00:48:41,722 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-06 00:48:41,723 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-06 00:48:41,724 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-06 00:48:41,724 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-06 00:48:41,724 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-06 00:48:41,724 INFO L87 Difference]: Start difference. First operand 450 states and 1358 transitions. Second operand 3 states. [2020-10-06 00:48:41,745 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-06 00:48:41,745 INFO L93 Difference]: Finished difference Result 440 states and 1320 transitions. [2020-10-06 00:48:41,746 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-06 00:48:41,747 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 9 [2020-10-06 00:48:41,747 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-06 00:48:41,751 INFO L225 Difference]: With dead ends: 440 [2020-10-06 00:48:41,751 INFO L226 Difference]: Without dead ends: 440 [2020-10-06 00:48:41,752 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-06 00:48:41,755 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 440 states. [2020-10-06 00:48:41,777 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 440 to 440. [2020-10-06 00:48:41,777 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 440 states. [2020-10-06 00:48:41,780 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 440 states to 440 states and 1320 transitions. [2020-10-06 00:48:41,781 INFO L78 Accepts]: Start accepts. Automaton has 440 states and 1320 transitions. Word has length 9 [2020-10-06 00:48:41,781 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-06 00:48:41,781 INFO L479 AbstractCegarLoop]: Abstraction has 440 states and 1320 transitions. [2020-10-06 00:48:41,781 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-06 00:48:41,781 INFO L276 IsEmpty]: Start isEmpty. Operand 440 states and 1320 transitions. [2020-10-06 00:48:41,783 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-10-06 00:48:41,783 INFO L414 BasicCegarLoop]: Found error trace [2020-10-06 00:48:41,783 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-06 00:48:41,783 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-06 00:48:41,783 INFO L427 AbstractCegarLoop]: === Iteration 3 === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-06 00:48:41,784 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-06 00:48:41,784 INFO L82 PathProgramCache]: Analyzing trace with hash 654255379, now seen corresponding path program 1 times [2020-10-06 00:48:41,785 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-06 00:48:41,785 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1878745018] [2020-10-06 00:48:41,786 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-06 00:48:41,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-06 00:48:41,934 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-06 00:48:41,934 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1878745018] [2020-10-06 00:48:41,935 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-06 00:48:41,935 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-10-06 00:48:41,935 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1263521374] [2020-10-06 00:48:41,935 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-06 00:48:41,937 INFO L255 McrAutomatonBuilder]: Started intersection. [2020-10-06 00:48:41,939 INFO L258 McrAutomatonBuilder]: Finished intersection with 15 states and 18 transitions. [2020-10-06 00:48:41,939 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-06 00:48:41,964 INFO L375 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 3, 3, 2, 3, 2, 1] term [2020-10-06 00:48:41,964 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-10-06 00:48:41,965 INFO L375 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 3, 3, 2, 1] term [2020-10-06 00:48:41,966 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-10-06 00:48:41,968 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-10-06 00:48:41,969 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-10-06 00:48:41,985 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-10-06 00:48:42,003 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-06 00:48:42,004 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-06 00:48:42,004 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-06 00:48:42,004 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-06 00:48:42,004 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-06 00:48:42,005 INFO L87 Difference]: Start difference. First operand 440 states and 1320 transitions. Second operand 3 states. [2020-10-06 00:48:42,029 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-06 00:48:42,030 INFO L93 Difference]: Finished difference Result 434 states and 1298 transitions. [2020-10-06 00:48:42,031 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-06 00:48:42,031 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10 [2020-10-06 00:48:42,031 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-06 00:48:42,035 INFO L225 Difference]: With dead ends: 434 [2020-10-06 00:48:42,036 INFO L226 Difference]: Without dead ends: 434 [2020-10-06 00:48:42,036 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-06 00:48:42,039 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 434 states. [2020-10-06 00:48:42,052 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 434 to 434. [2020-10-06 00:48:42,053 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 434 states. [2020-10-06 00:48:42,056 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 434 states to 434 states and 1298 transitions. [2020-10-06 00:48:42,056 INFO L78 Accepts]: Start accepts. Automaton has 434 states and 1298 transitions. Word has length 10 [2020-10-06 00:48:42,056 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-06 00:48:42,056 INFO L479 AbstractCegarLoop]: Abstraction has 434 states and 1298 transitions. [2020-10-06 00:48:42,056 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-06 00:48:42,056 INFO L276 IsEmpty]: Start isEmpty. Operand 434 states and 1298 transitions. [2020-10-06 00:48:42,058 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-10-06 00:48:42,058 INFO L414 BasicCegarLoop]: Found error trace [2020-10-06 00:48:42,058 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-06 00:48:42,059 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-06 00:48:42,059 INFO L427 AbstractCegarLoop]: === Iteration 4 === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-06 00:48:42,059 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-06 00:48:42,059 INFO L82 PathProgramCache]: Analyzing trace with hash -1192921599, now seen corresponding path program 1 times [2020-10-06 00:48:42,061 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-06 00:48:42,061 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [788422073] [2020-10-06 00:48:42,061 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-06 00:48:42,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-06 00:48:42,130 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-06 00:48:42,130 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [788422073] [2020-10-06 00:48:42,131 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-06 00:48:42,131 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-06 00:48:42,131 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1320467585] [2020-10-06 00:48:42,131 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-06 00:48:42,133 INFO L255 McrAutomatonBuilder]: Started intersection. [2020-10-06 00:48:42,135 INFO L258 McrAutomatonBuilder]: Finished intersection with 16 states and 19 transitions. [2020-10-06 00:48:42,135 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-06 00:48:42,148 INFO L603 QuantifierPusher]: Distributing 3 disjuncts over 2 conjuncts [2020-10-06 00:48:42,161 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-10-06 00:48:42,168 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-10-06 00:48:42,175 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-10-06 00:48:42,206 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-06 00:48:42,207 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-06 00:48:42,207 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-06 00:48:42,207 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-06 00:48:42,207 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-10-06 00:48:42,208 INFO L87 Difference]: Start difference. First operand 434 states and 1298 transitions. Second operand 4 states. [2020-10-06 00:48:42,257 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-06 00:48:42,258 INFO L93 Difference]: Finished difference Result 438 states and 1309 transitions. [2020-10-06 00:48:42,259 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-06 00:48:42,259 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2020-10-06 00:48:42,259 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-06 00:48:42,263 INFO L225 Difference]: With dead ends: 438 [2020-10-06 00:48:42,263 INFO L226 Difference]: Without dead ends: 438 [2020-10-06 00:48:42,263 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-10-06 00:48:42,266 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 438 states. [2020-10-06 00:48:42,277 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 438 to 438. [2020-10-06 00:48:42,277 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 438 states. [2020-10-06 00:48:42,279 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 438 states to 438 states and 1309 transitions. [2020-10-06 00:48:42,279 INFO L78 Accepts]: Start accepts. Automaton has 438 states and 1309 transitions. Word has length 11 [2020-10-06 00:48:42,280 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-06 00:48:42,280 INFO L479 AbstractCegarLoop]: Abstraction has 438 states and 1309 transitions. [2020-10-06 00:48:42,280 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-06 00:48:42,280 INFO L276 IsEmpty]: Start isEmpty. Operand 438 states and 1309 transitions. [2020-10-06 00:48:42,282 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-10-06 00:48:42,282 INFO L414 BasicCegarLoop]: Found error trace [2020-10-06 00:48:42,282 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-06 00:48:42,282 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-06 00:48:42,283 INFO L427 AbstractCegarLoop]: === Iteration 5 === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-06 00:48:42,283 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-06 00:48:42,283 INFO L82 PathProgramCache]: Analyzing trace with hash -1192920235, now seen corresponding path program 1 times [2020-10-06 00:48:42,284 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-06 00:48:42,285 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1236390132] [2020-10-06 00:48:42,285 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-06 00:48:42,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-06 00:48:42,458 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-06 00:48:42,459 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1236390132] [2020-10-06 00:48:42,459 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-06 00:48:42,459 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-06 00:48:42,460 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [67514069] [2020-10-06 00:48:42,460 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-06 00:48:42,462 INFO L255 McrAutomatonBuilder]: Started intersection. [2020-10-06 00:48:42,465 INFO L258 McrAutomatonBuilder]: Finished intersection with 17 states and 21 transitions. [2020-10-06 00:48:42,465 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-06 00:48:42,485 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-10-06 00:48:42,486 INFO L603 QuantifierPusher]: Distributing 3 disjuncts over 2 conjuncts [2020-10-06 00:48:42,488 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-10-06 00:48:42,491 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-10-06 00:48:42,492 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-10-06 00:48:42,501 INFO L603 QuantifierPusher]: Distributing 3 disjuncts over 4 conjuncts [2020-10-06 00:48:42,508 INFO L603 QuantifierPusher]: Distributing 5 disjuncts over 2 conjuncts [2020-10-06 00:48:42,509 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-10-06 00:48:42,521 INFO L603 QuantifierPusher]: Distributing 3 disjuncts over 4 conjuncts [2020-10-06 00:48:42,546 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-06 00:48:42,546 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-06 00:48:42,546 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-06 00:48:42,547 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-06 00:48:42,547 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2020-10-06 00:48:42,547 INFO L87 Difference]: Start difference. First operand 438 states and 1309 transitions. Second operand 5 states. [2020-10-06 00:48:42,594 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-06 00:48:42,595 INFO L93 Difference]: Finished difference Result 426 states and 1265 transitions. [2020-10-06 00:48:42,596 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-06 00:48:42,596 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 11 [2020-10-06 00:48:42,596 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-06 00:48:42,599 INFO L225 Difference]: With dead ends: 426 [2020-10-06 00:48:42,599 INFO L226 Difference]: Without dead ends: 426 [2020-10-06 00:48:42,600 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2020-10-06 00:48:42,602 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 426 states. [2020-10-06 00:48:42,612 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 426 to 426. [2020-10-06 00:48:42,612 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 426 states. [2020-10-06 00:48:42,614 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 426 states to 426 states and 1265 transitions. [2020-10-06 00:48:42,615 INFO L78 Accepts]: Start accepts. Automaton has 426 states and 1265 transitions. Word has length 11 [2020-10-06 00:48:42,615 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-06 00:48:42,615 INFO L479 AbstractCegarLoop]: Abstraction has 426 states and 1265 transitions. [2020-10-06 00:48:42,615 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-06 00:48:42,615 INFO L276 IsEmpty]: Start isEmpty. Operand 426 states and 1265 transitions. [2020-10-06 00:48:42,616 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-10-06 00:48:42,617 INFO L414 BasicCegarLoop]: Found error trace [2020-10-06 00:48:42,617 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-06 00:48:42,617 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-06 00:48:42,617 INFO L427 AbstractCegarLoop]: === Iteration 6 === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-06 00:48:42,617 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-06 00:48:42,618 INFO L82 PathProgramCache]: Analyzing trace with hash -1194181749, now seen corresponding path program 2 times [2020-10-06 00:48:42,619 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-06 00:48:42,619 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [487273030] [2020-10-06 00:48:42,619 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-06 00:48:42,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-06 00:48:42,696 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-06 00:48:42,697 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [487273030] [2020-10-06 00:48:42,697 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-06 00:48:42,697 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-06 00:48:42,698 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [281306607] [2020-10-06 00:48:42,698 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-06 00:48:42,699 INFO L255 McrAutomatonBuilder]: Started intersection. [2020-10-06 00:48:42,702 INFO L258 McrAutomatonBuilder]: Finished intersection with 18 states and 23 transitions. [2020-10-06 00:48:42,702 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-06 00:48:42,720 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-06 00:48:42,720 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-06 00:48:42,721 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-06 00:48:42,721 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-06 00:48:42,721 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-06 00:48:42,721 INFO L87 Difference]: Start difference. First operand 426 states and 1265 transitions. Second operand 5 states. [2020-10-06 00:48:42,794 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-06 00:48:42,794 INFO L93 Difference]: Finished difference Result 414 states and 1224 transitions. [2020-10-06 00:48:42,795 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-06 00:48:42,795 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 11 [2020-10-06 00:48:42,795 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-06 00:48:42,799 INFO L225 Difference]: With dead ends: 414 [2020-10-06 00:48:42,799 INFO L226 Difference]: Without dead ends: 414 [2020-10-06 00:48:42,799 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2020-10-06 00:48:42,802 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 414 states. [2020-10-06 00:48:42,811 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 414 to 410. [2020-10-06 00:48:42,812 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 410 states. [2020-10-06 00:48:42,814 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 410 states to 410 states and 1213 transitions. [2020-10-06 00:48:42,814 INFO L78 Accepts]: Start accepts. Automaton has 410 states and 1213 transitions. Word has length 11 [2020-10-06 00:48:42,815 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-06 00:48:42,815 INFO L479 AbstractCegarLoop]: Abstraction has 410 states and 1213 transitions. [2020-10-06 00:48:42,815 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-06 00:48:42,815 INFO L276 IsEmpty]: Start isEmpty. Operand 410 states and 1213 transitions. [2020-10-06 00:48:42,816 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-10-06 00:48:42,816 INFO L414 BasicCegarLoop]: Found error trace [2020-10-06 00:48:42,816 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-06 00:48:42,816 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-06 00:48:42,817 INFO L427 AbstractCegarLoop]: === Iteration 7 === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-06 00:48:42,817 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-06 00:48:42,817 INFO L82 PathProgramCache]: Analyzing trace with hash 1674135591, now seen corresponding path program 1 times [2020-10-06 00:48:42,818 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-06 00:48:42,819 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [337582065] [2020-10-06 00:48:42,819 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-06 00:48:42,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-06 00:48:42,994 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-06 00:48:42,995 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [337582065] [2020-10-06 00:48:42,996 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-06 00:48:42,996 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-06 00:48:42,996 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1409397291] [2020-10-06 00:48:42,996 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-06 00:48:42,998 INFO L255 McrAutomatonBuilder]: Started intersection. [2020-10-06 00:48:43,001 INFO L258 McrAutomatonBuilder]: Finished intersection with 19 states and 24 transitions. [2020-10-06 00:48:43,001 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-06 00:48:43,018 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-10-06 00:48:43,018 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-10-06 00:48:43,033 INFO L603 QuantifierPusher]: Distributing 3 disjuncts over 4 conjuncts [2020-10-06 00:48:43,039 INFO L603 QuantifierPusher]: Distributing 3 disjuncts over 2 conjuncts [2020-10-06 00:48:43,043 INFO L603 QuantifierPusher]: Distributing 4 disjuncts over 4 conjuncts [2020-10-06 00:48:43,081 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 1 new interpolants: [9331#(and (= (* 256 (div ~y$w_buff1_used~0 256)) ~y$w_buff1_used~0) (<= ~y$r_buff0_thd0~0 (* 256 (div ~y$r_buff0_thd0~0 256))) (<= 0 ~y$r_buff0_thd0~0))] [2020-10-06 00:48:43,081 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-06 00:48:43,082 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-06 00:48:43,082 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-06 00:48:43,082 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-10-06 00:48:43,082 INFO L87 Difference]: Start difference. First operand 410 states and 1213 transitions. Second operand 7 states. [2020-10-06 00:48:43,192 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-06 00:48:43,192 INFO L93 Difference]: Finished difference Result 434 states and 1271 transitions. [2020-10-06 00:48:43,193 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-06 00:48:43,193 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 12 [2020-10-06 00:48:43,194 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-06 00:48:43,197 INFO L225 Difference]: With dead ends: 434 [2020-10-06 00:48:43,197 INFO L226 Difference]: Without dead ends: 434 [2020-10-06 00:48:43,197 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2020-10-06 00:48:43,200 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 434 states. [2020-10-06 00:48:43,209 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 434 to 426. [2020-10-06 00:48:43,209 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 426 states. [2020-10-06 00:48:43,211 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 426 states to 426 states and 1253 transitions. [2020-10-06 00:48:43,212 INFO L78 Accepts]: Start accepts. Automaton has 426 states and 1253 transitions. Word has length 12 [2020-10-06 00:48:43,212 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-06 00:48:43,212 INFO L479 AbstractCegarLoop]: Abstraction has 426 states and 1253 transitions. [2020-10-06 00:48:43,212 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-06 00:48:43,212 INFO L276 IsEmpty]: Start isEmpty. Operand 426 states and 1253 transitions. [2020-10-06 00:48:43,213 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-10-06 00:48:43,213 INFO L414 BasicCegarLoop]: Found error trace [2020-10-06 00:48:43,213 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-06 00:48:43,214 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-06 00:48:43,214 INFO L427 AbstractCegarLoop]: === Iteration 8 === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-06 00:48:43,214 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-06 00:48:43,214 INFO L82 PathProgramCache]: Analyzing trace with hash 358553942, now seen corresponding path program 1 times [2020-10-06 00:48:43,218 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-06 00:48:43,218 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [943188308] [2020-10-06 00:48:43,218 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-06 00:48:43,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-06 00:48:43,427 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-06 00:48:43,428 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [943188308] [2020-10-06 00:48:43,428 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-06 00:48:43,428 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-06 00:48:43,429 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1974423982] [2020-10-06 00:48:43,429 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-06 00:48:43,430 INFO L255 McrAutomatonBuilder]: Started intersection. [2020-10-06 00:48:43,433 INFO L258 McrAutomatonBuilder]: Finished intersection with 18 states and 21 transitions. [2020-10-06 00:48:43,433 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-06 00:48:43,440 INFO L603 QuantifierPusher]: Distributing 3 disjuncts over 2 conjuncts [2020-10-06 00:48:43,442 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-10-06 00:48:43,443 INFO L603 QuantifierPusher]: Distributing 3 disjuncts over 4 conjuncts [2020-10-06 00:48:43,462 INFO L375 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 4, 3, 2, 1] term [2020-10-06 00:48:43,462 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-10-06 00:48:43,481 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-06 00:48:43,481 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-06 00:48:43,481 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-06 00:48:43,482 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-06 00:48:43,482 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-06 00:48:43,482 INFO L87 Difference]: Start difference. First operand 426 states and 1253 transitions. Second operand 7 states. [2020-10-06 00:48:43,593 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-06 00:48:43,593 INFO L93 Difference]: Finished difference Result 510 states and 1504 transitions. [2020-10-06 00:48:43,594 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-06 00:48:43,594 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 13 [2020-10-06 00:48:43,595 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-06 00:48:43,598 INFO L225 Difference]: With dead ends: 510 [2020-10-06 00:48:43,599 INFO L226 Difference]: Without dead ends: 510 [2020-10-06 00:48:43,599 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2020-10-06 00:48:43,601 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 510 states. [2020-10-06 00:48:43,612 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 510 to 486. [2020-10-06 00:48:43,612 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 486 states. [2020-10-06 00:48:43,614 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 486 states to 486 states and 1422 transitions. [2020-10-06 00:48:43,614 INFO L78 Accepts]: Start accepts. Automaton has 486 states and 1422 transitions. Word has length 13 [2020-10-06 00:48:43,614 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-06 00:48:43,614 INFO L479 AbstractCegarLoop]: Abstraction has 486 states and 1422 transitions. [2020-10-06 00:48:43,615 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-06 00:48:43,615 INFO L276 IsEmpty]: Start isEmpty. Operand 486 states and 1422 transitions. [2020-10-06 00:48:43,616 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-10-06 00:48:43,616 INFO L414 BasicCegarLoop]: Found error trace [2020-10-06 00:48:43,616 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-06 00:48:43,616 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-06 00:48:43,616 INFO L427 AbstractCegarLoop]: === Iteration 9 === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-06 00:48:43,617 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-06 00:48:43,617 INFO L82 PathProgramCache]: Analyzing trace with hash 358593932, now seen corresponding path program 2 times [2020-10-06 00:48:43,618 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-06 00:48:43,619 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1203819463] [2020-10-06 00:48:43,619 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-06 00:48:43,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-06 00:48:43,887 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-06 00:48:43,887 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1203819463] [2020-10-06 00:48:43,888 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-06 00:48:43,888 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-06 00:48:43,888 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [314797807] [2020-10-06 00:48:43,888 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-06 00:48:43,890 INFO L255 McrAutomatonBuilder]: Started intersection. [2020-10-06 00:48:43,894 INFO L258 McrAutomatonBuilder]: Finished intersection with 20 states and 25 transitions. [2020-10-06 00:48:43,894 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-06 00:48:43,904 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-10-06 00:48:43,908 INFO L375 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 4, 3, 2, 1] term [2020-10-06 00:48:43,909 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-10-06 00:48:43,953 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 1 new interpolants: [12120#(and (<= ~y$r_buff0_thd0~0 (* 256 (div ~y$r_buff0_thd0~0 256))) (= ~y$w_buff1_used~0 0) (<= 0 ~y$r_buff0_thd0~0) (= ~y$r_buff0_thd2~0 0))] [2020-10-06 00:48:43,953 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-06 00:48:43,954 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-06 00:48:43,954 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-06 00:48:43,954 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-06 00:48:43,954 INFO L87 Difference]: Start difference. First operand 486 states and 1422 transitions. Second operand 8 states. [2020-10-06 00:48:44,105 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-06 00:48:44,105 INFO L93 Difference]: Finished difference Result 542 states and 1532 transitions. [2020-10-06 00:48:44,106 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-06 00:48:44,106 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 13 [2020-10-06 00:48:44,106 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-06 00:48:44,109 INFO L225 Difference]: With dead ends: 542 [2020-10-06 00:48:44,110 INFO L226 Difference]: Without dead ends: 470 [2020-10-06 00:48:44,110 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2020-10-06 00:48:44,112 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 470 states. [2020-10-06 00:48:44,121 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 470 to 386. [2020-10-06 00:48:44,121 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 386 states. [2020-10-06 00:48:44,122 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 386 states to 386 states and 1107 transitions. [2020-10-06 00:48:44,122 INFO L78 Accepts]: Start accepts. Automaton has 386 states and 1107 transitions. Word has length 13 [2020-10-06 00:48:44,123 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-06 00:48:44,123 INFO L479 AbstractCegarLoop]: Abstraction has 386 states and 1107 transitions. [2020-10-06 00:48:44,123 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-06 00:48:44,123 INFO L276 IsEmpty]: Start isEmpty. Operand 386 states and 1107 transitions. [2020-10-06 00:48:44,124 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-10-06 00:48:44,124 INFO L414 BasicCegarLoop]: Found error trace [2020-10-06 00:48:44,124 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-06 00:48:44,125 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-06 00:48:44,125 INFO L427 AbstractCegarLoop]: === Iteration 10 === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-06 00:48:44,125 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-06 00:48:44,125 INFO L82 PathProgramCache]: Analyzing trace with hash 359870388, now seen corresponding path program 1 times [2020-10-06 00:48:44,126 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-06 00:48:44,127 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1357751115] [2020-10-06 00:48:44,127 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-06 00:48:44,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-06 00:48:44,182 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-06 00:48:44,182 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1357751115] [2020-10-06 00:48:44,183 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-06 00:48:44,183 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-06 00:48:44,183 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1473784414] [2020-10-06 00:48:44,183 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-06 00:48:44,185 INFO L255 McrAutomatonBuilder]: Started intersection. [2020-10-06 00:48:44,188 INFO L258 McrAutomatonBuilder]: Finished intersection with 21 states and 27 transitions. [2020-10-06 00:48:44,188 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-06 00:48:44,216 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-10-06 00:48:44,220 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 1 new interpolants: [13443#(= (mod ~main$tmp_guard0~0 256) 0)] [2020-10-06 00:48:44,221 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-06 00:48:44,221 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-06 00:48:44,221 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-06 00:48:44,222 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-06 00:48:44,222 INFO L87 Difference]: Start difference. First operand 386 states and 1107 transitions. Second operand 5 states. [2020-10-06 00:48:44,244 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-06 00:48:44,245 INFO L93 Difference]: Finished difference Result 302 states and 758 transitions. [2020-10-06 00:48:44,245 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-06 00:48:44,246 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 13 [2020-10-06 00:48:44,246 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-06 00:48:44,246 INFO L225 Difference]: With dead ends: 302 [2020-10-06 00:48:44,246 INFO L226 Difference]: Without dead ends: 0 [2020-10-06 00:48:44,246 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-06 00:48:44,247 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-06 00:48:44,247 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-06 00:48:44,247 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-06 00:48:44,247 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-06 00:48:44,247 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 13 [2020-10-06 00:48:44,247 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-06 00:48:44,248 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-06 00:48:44,248 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-06 00:48:44,248 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-06 00:48:44,248 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-06 00:48:44,248 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-06 00:48:44,252 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.10 12:48:44 BasicIcfg [2020-10-06 00:48:44,252 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-06 00:48:44,254 INFO L168 Benchmark]: Toolchain (without parser) took 15984.44 ms. Allocated memory was 140.0 MB in the beginning and 351.8 MB in the end (delta: 211.8 MB). Free memory was 101.7 MB in the beginning and 113.7 MB in the end (delta: -12.0 MB). Peak memory consumption was 199.8 MB. Max. memory is 7.1 GB. [2020-10-06 00:48:44,255 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 140.0 MB. Free memory was 121.5 MB in the beginning and 121.3 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. [2020-10-06 00:48:44,256 INFO L168 Benchmark]: CACSL2BoogieTranslator took 773.73 ms. Allocated memory was 140.0 MB in the beginning and 202.9 MB in the end (delta: 62.9 MB). Free memory was 101.5 MB in the beginning and 156.3 MB in the end (delta: -54.8 MB). Peak memory consumption was 24.4 MB. Max. memory is 7.1 GB. [2020-10-06 00:48:44,257 INFO L168 Benchmark]: Boogie Procedure Inliner took 65.22 ms. Allocated memory is still 202.9 MB. Free memory was 156.3 MB in the beginning and 153.7 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.6 MB. Max. memory is 7.1 GB. [2020-10-06 00:48:44,257 INFO L168 Benchmark]: Boogie Preprocessor took 35.56 ms. Allocated memory is still 202.9 MB. Free memory was 153.7 MB in the beginning and 151.0 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.6 MB. Max. memory is 7.1 GB. [2020-10-06 00:48:44,258 INFO L168 Benchmark]: RCFGBuilder took 1926.59 ms. Allocated memory was 202.9 MB in the beginning and 246.4 MB in the end (delta: 43.5 MB). Free memory was 151.0 MB in the beginning and 192.4 MB in the end (delta: -41.4 MB). Peak memory consumption was 102.4 MB. Max. memory is 7.1 GB. [2020-10-06 00:48:44,259 INFO L168 Benchmark]: TraceAbstraction took 13178.33 ms. Allocated memory was 246.4 MB in the beginning and 351.8 MB in the end (delta: 105.4 MB). Free memory was 190.6 MB in the beginning and 113.7 MB in the end (delta: 77.0 MB). Peak memory consumption was 182.4 MB. Max. memory is 7.1 GB. [2020-10-06 00:48:44,263 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 140.0 MB. Free memory was 121.5 MB in the beginning and 121.3 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 773.73 ms. Allocated memory was 140.0 MB in the beginning and 202.9 MB in the end (delta: 62.9 MB). Free memory was 101.5 MB in the beginning and 156.3 MB in the end (delta: -54.8 MB). Peak memory consumption was 24.4 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 65.22 ms. Allocated memory is still 202.9 MB. Free memory was 156.3 MB in the beginning and 153.7 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.6 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 35.56 ms. Allocated memory is still 202.9 MB. Free memory was 153.7 MB in the beginning and 151.0 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.6 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1926.59 ms. Allocated memory was 202.9 MB in the beginning and 246.4 MB in the end (delta: 43.5 MB). Free memory was 151.0 MB in the beginning and 192.4 MB in the end (delta: -41.4 MB). Peak memory consumption was 102.4 MB. Max. memory is 7.1 GB. * TraceAbstraction took 13178.33 ms. Allocated memory was 246.4 MB in the beginning and 351.8 MB in the end (delta: 105.4 MB). Free memory was 190.6 MB in the beginning and 113.7 MB in the end (delta: 77.0 MB). Peak memory consumption was 182.4 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 9.7s, 99 ProgramPointsBefore, 35 ProgramPointsAfterwards, 91 TransitionsBefore, 25 TransitionsAfterwards, 1536 CoEnabledTransitionPairs, 8 FixpointIterations, 31 TrivialSequentialCompositions, 39 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 8 ConcurrentYvCompositions, 2 ChoiceCompositions, 797 VarBasedMoverChecksPositive, 33 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 0 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 0 MoverChecksTotal, 4008 CheckedPairsTotal, 78 TotalNumberOfCompositions - PositiveResult [Line: 7]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 7]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 90 locations, 2 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 13.0s, OverallIterations: 10, TraceHistogramMax: 1, AutomataDifference: 0.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 9.8s, HoareTripleCheckerStatistics: 206 SDtfs, 239 SDslu, 267 SDs, 0 SdLazy, 180 SolverSat, 72 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 79 GetRequests, 38 SyntacticMatches, 4 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=650occurred 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, 120 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.0s InterpolantComputationTime, 110 NumberOfCodeBlocks, 110 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 100 ConstructedInterpolants, 0 QuantifiedInterpolants, 10264 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 correct! Received shutdown request...