/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/automizer/mcr/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA.epf -i ../../../trunk/examples/svcomp/pthread-wmm/mix057_tso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-b09bf87 [2020-10-16 12:05:04,078 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-16 12:05:04,081 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-16 12:05:04,123 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-16 12:05:04,123 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-16 12:05:04,136 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-16 12:05:04,137 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-16 12:05:04,140 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-16 12:05:04,145 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-16 12:05:04,149 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-16 12:05:04,150 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-16 12:05:04,152 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-16 12:05:04,153 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-16 12:05:04,156 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-16 12:05:04,159 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-16 12:05:04,161 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-16 12:05:04,163 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-16 12:05:04,164 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-16 12:05:04,166 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-16 12:05:04,175 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-16 12:05:04,178 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-16 12:05:04,179 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-16 12:05:04,181 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-16 12:05:04,181 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-16 12:05:04,186 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-16 12:05:04,186 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-16 12:05:04,186 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-16 12:05:04,189 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-16 12:05:04,190 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-16 12:05:04,192 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-16 12:05:04,193 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-16 12:05:04,194 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-16 12:05:04,194 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-16 12:05:04,195 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-16 12:05:04,197 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-16 12:05:04,197 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-16 12:05:04,198 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-16 12:05:04,198 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-16 12:05:04,198 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-16 12:05:04,199 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-16 12:05:04,201 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-16 12:05:04,202 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/mcr/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA.epf [2020-10-16 12:05:04,246 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-16 12:05:04,247 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-16 12:05:04,249 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-16 12:05:04,249 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-16 12:05:04,249 INFO L138 SettingsManager]: * Use SBE=true [2020-10-16 12:05:04,250 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-16 12:05:04,250 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-16 12:05:04,250 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-16 12:05:04,251 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-16 12:05:04,251 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-16 12:05:04,252 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-16 12:05:04,252 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-16 12:05:04,252 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-16 12:05:04,253 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-16 12:05:04,253 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-16 12:05:04,253 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-16 12:05:04,253 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-16 12:05:04,254 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-16 12:05:04,254 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-16 12:05:04,254 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-16 12:05:04,254 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-16 12:05:04,254 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-16 12:05:04,255 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-16 12:05:04,255 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_NestedInterpolation [2020-10-16 12:05:04,255 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-16 12:05:04,255 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-16 12:05:04,255 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-16 12:05:04,256 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=VARIABLE_BASED_MOVER_CHECK [2020-10-16 12:05:04,256 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-16 12:05:04,556 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-16 12:05:04,567 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-16 12:05:04,571 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-16 12:05:04,572 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-16 12:05:04,572 INFO L275 PluginConnector]: CDTParser initialized [2020-10-16 12:05:04,573 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/mix057_tso.oepc.i [2020-10-16 12:05:04,635 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/4aa114365/54181f61aaa8431682ef4db5538e5c7c/FLAG5eca5b5fc [2020-10-16 12:05:05,211 INFO L306 CDTParser]: Found 1 translation units. [2020-10-16 12:05:05,213 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/pthread-wmm/mix057_tso.oepc.i [2020-10-16 12:05:05,236 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/4aa114365/54181f61aaa8431682ef4db5538e5c7c/FLAG5eca5b5fc [2020-10-16 12:05:05,494 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/4aa114365/54181f61aaa8431682ef4db5538e5c7c [2020-10-16 12:05:05,502 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-16 12:05:05,504 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-10-16 12:05:05,506 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-16 12:05:05,506 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-16 12:05:05,509 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-16 12:05:05,510 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 12:05:05" (1/1) ... [2020-10-16 12:05:05,513 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@16a2f407 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:05:05, skipping insertion in model container [2020-10-16 12:05:05,514 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 12:05:05" (1/1) ... [2020-10-16 12:05:05,521 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-16 12:05:05,569 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-16 12:05:06,114 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-16 12:05:06,133 INFO L203 MainTranslator]: Completed pre-run [2020-10-16 12:05:06,198 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-16 12:05:06,273 INFO L208 MainTranslator]: Completed translation [2020-10-16 12:05:06,274 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:05:06 WrapperNode [2020-10-16 12:05:06,274 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-16 12:05:06,275 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-16 12:05:06,275 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-16 12:05:06,276 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-16 12:05:06,285 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:05:06" (1/1) ... [2020-10-16 12:05:06,306 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:05:06" (1/1) ... [2020-10-16 12:05:06,345 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-16 12:05:06,346 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-16 12:05:06,346 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-16 12:05:06,346 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-16 12:05:06,355 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:05:06" (1/1) ... [2020-10-16 12:05:06,355 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:05:06" (1/1) ... [2020-10-16 12:05:06,360 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:05:06" (1/1) ... [2020-10-16 12:05:06,361 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:05:06" (1/1) ... [2020-10-16 12:05:06,372 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:05:06" (1/1) ... [2020-10-16 12:05:06,376 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:05:06" (1/1) ... [2020-10-16 12:05:06,382 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:05:06" (1/1) ... [2020-10-16 12:05:06,389 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-16 12:05:06,389 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-16 12:05:06,390 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-16 12:05:06,390 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-16 12:05:06,391 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:05:06" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-16 12:05:06,466 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-16 12:05:06,466 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-10-16 12:05:06,467 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-16 12:05:06,467 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-16 12:05:06,467 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-10-16 12:05:06,467 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-10-16 12:05:06,467 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-10-16 12:05:06,468 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-10-16 12:05:06,468 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-10-16 12:05:06,468 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-10-16 12:05:06,468 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2020-10-16 12:05:06,468 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2020-10-16 12:05:06,469 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-10-16 12:05:06,469 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-16 12:05:06,470 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-16 12:05:06,472 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-10-16 12:05:08,400 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-16 12:05:08,401 INFO L298 CfgBuilder]: Removed 10 assume(true) statements. [2020-10-16 12:05:08,403 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 12:05:08 BoogieIcfgContainer [2020-10-16 12:05:08,403 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-16 12:05:08,405 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-16 12:05:08,405 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-16 12:05:08,409 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-16 12:05:08,410 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.10 12:05:05" (1/3) ... [2020-10-16 12:05:08,411 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1e5aa8bd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 12:05:08, skipping insertion in model container [2020-10-16 12:05:08,411 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:05:06" (2/3) ... [2020-10-16 12:05:08,412 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1e5aa8bd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 12:05:08, skipping insertion in model container [2020-10-16 12:05:08,412 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 12:05:08" (3/3) ... [2020-10-16 12:05:08,414 INFO L111 eAbstractionObserver]: Analyzing ICFG mix057_tso.oepc.i [2020-10-16 12:05:08,427 WARN L153 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-10-16 12:05:08,428 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-16 12:05:08,437 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2020-10-16 12:05:08,438 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-10-16 12:05:08,472 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:05:08,472 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:05:08,473 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:05:08,473 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:05:08,473 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:05:08,474 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:05:08,474 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:05:08,474 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:05:08,474 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:05:08,474 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:05:08,475 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:05:08,475 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:05:08,475 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:05:08,476 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:05:08,476 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:05:08,476 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:05:08,476 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:05:08,476 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:05:08,477 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:05:08,477 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:05:08,477 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:05:08,477 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:05:08,477 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:05:08,478 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:05:08,478 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:05:08,479 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:05:08,479 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:05:08,479 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:05:08,479 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:05:08,480 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:05:08,480 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:05:08,480 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:05:08,480 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:05:08,481 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:05:08,481 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:05:08,481 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:05:08,481 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:05:08,481 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:05:08,482 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:05:08,482 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:05:08,483 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:05:08,483 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:05:08,487 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:05:08,487 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:05:08,487 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:05:08,488 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:05:08,488 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:05:08,488 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:05:08,488 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:05:08,488 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:05:08,489 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:05:08,489 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:05:08,491 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:05:08,492 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:05:08,492 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:05:08,492 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:05:08,492 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:05:08,492 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:05:08,493 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:05:08,493 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:05:08,493 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:05:08,493 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:05:08,493 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:05:08,494 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:05:08,495 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:05:08,496 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:05:08,496 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:05:08,496 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:05:08,498 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:05:08,498 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:05:08,498 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:05:08,498 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:05:08,500 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2020-10-16 12:05:08,516 INFO L253 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2020-10-16 12:05:08,538 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-16 12:05:08,539 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-16 12:05:08,539 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-16 12:05:08,539 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-16 12:05:08,539 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-16 12:05:08,540 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-16 12:05:08,540 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-16 12:05:08,540 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-16 12:05:08,556 INFO L137 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2020-10-16 12:05:08,557 INFO L144 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 118 places, 107 transitions, 234 flow [2020-10-16 12:05:08,560 INFO L111 LiptonReduction]: Starting Lipton reduction on Petri net that has 118 places, 107 transitions, 234 flow [2020-10-16 12:05:08,562 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 118 places, 107 transitions, 234 flow [2020-10-16 12:05:08,620 INFO L129 PetriNetUnfolder]: 2/103 cut-off events. [2020-10-16 12:05:08,620 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-10-16 12:05:08,626 INFO L80 FinitePrefix]: Finished finitePrefix Result has 116 conditions, 103 events. 2/103 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 76 event pairs, 0 based on Foata normal form. 0/99 useless extension candidates. Maximal degree in co-relation 73. Up to 2 conditions per place. [2020-10-16 12:05:08,630 INFO L117 LiptonReduction]: Number of co-enabled transitions 2352 [2020-10-16 12:05:10,144 WARN L193 SmtUtils]: Spent 1.29 s on a formula simplification. DAG size of input: 228 DAG size of output: 187 [2020-10-16 12:05:10,198 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[3, 2, 5, 4, 2, 1] term [2020-10-16 12:05:10,198 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-10-16 12:05:10,201 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[3, 2, 5, 4, 1] term [2020-10-16 12:05:10,202 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-10-16 12:05:11,542 WARN L193 SmtUtils]: Spent 1.32 s on a formula simplification. DAG size of input: 144 DAG size of output: 124 [2020-10-16 12:05:12,209 WARN L193 SmtUtils]: Spent 266.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 58 [2020-10-16 12:05:12,321 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 53 [2020-10-16 12:05:13,222 WARN L193 SmtUtils]: Spent 324.00 ms on a formula simplification that was a NOOP. DAG size: 124 [2020-10-16 12:05:13,565 WARN L193 SmtUtils]: Spent 340.00 ms on a formula simplification that was a NOOP. DAG size: 124 [2020-10-16 12:05:13,815 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 58 [2020-10-16 12:05:14,658 WARN L193 SmtUtils]: Spent 696.00 ms on a formula simplification. DAG size of input: 137 DAG size of output: 128 [2020-10-16 12:05:15,002 WARN L193 SmtUtils]: Spent 340.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2020-10-16 12:05:15,579 WARN L193 SmtUtils]: Spent 575.00 ms on a formula simplification. DAG size of input: 127 DAG size of output: 108 [2020-10-16 12:05:15,849 WARN L193 SmtUtils]: Spent 266.00 ms on a formula simplification that was a NOOP. DAG size: 105 [2020-10-16 12:05:16,602 WARN L193 SmtUtils]: Spent 483.00 ms on a formula simplification that was a NOOP. DAG size: 133 [2020-10-16 12:05:17,113 WARN L193 SmtUtils]: Spent 506.00 ms on a formula simplification that was a NOOP. DAG size: 131 [2020-10-16 12:05:17,357 WARN L193 SmtUtils]: Spent 229.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 91 [2020-10-16 12:05:17,473 WARN L193 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 89 [2020-10-16 12:05:17,494 INFO L132 LiptonReduction]: Checked pairs total: 5641 [2020-10-16 12:05:17,495 INFO L134 LiptonReduction]: Total number of compositions: 86 [2020-10-16 12:05:17,502 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 44 places, 31 transitions, 82 flow [2020-10-16 12:05:17,725 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 2602 states. [2020-10-16 12:05:17,728 INFO L276 IsEmpty]: Start isEmpty. Operand 2602 states. [2020-10-16 12:05:17,737 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-10-16 12:05:17,737 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 12:05:17,738 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 12:05:17,739 INFO L429 AbstractCegarLoop]: === Iteration 1 === [P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 12:05:17,745 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 12:05:17,746 INFO L82 PathProgramCache]: Analyzing trace with hash 1680903237, now seen corresponding path program 1 times [2020-10-16 12:05:17,757 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 12:05:17,758 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1586601236] [2020-10-16 12:05:17,758 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 12:05:17,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 12:05:18,049 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 12:05:18,050 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1586601236] [2020-10-16 12:05:18,052 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 12:05:18,052 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-10-16 12:05:18,053 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2013181132] [2020-10-16 12:05:18,059 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-16 12:05:18,060 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 12:05:18,078 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-16 12:05:18,079 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-16 12:05:18,082 INFO L87 Difference]: Start difference. First operand 2602 states. Second operand 3 states. [2020-10-16 12:05:18,209 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 12:05:18,209 INFO L93 Difference]: Finished difference Result 2202 states and 8424 transitions. [2020-10-16 12:05:18,211 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-16 12:05:18,213 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 9 [2020-10-16 12:05:18,213 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 12:05:18,255 INFO L225 Difference]: With dead ends: 2202 [2020-10-16 12:05:18,255 INFO L226 Difference]: Without dead ends: 1802 [2020-10-16 12:05:18,257 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-16 12:05:18,300 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1802 states. [2020-10-16 12:05:18,400 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1802 to 1802. [2020-10-16 12:05:18,402 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1802 states. [2020-10-16 12:05:18,415 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1802 states to 1802 states and 6784 transitions. [2020-10-16 12:05:18,417 INFO L78 Accepts]: Start accepts. Automaton has 1802 states and 6784 transitions. Word has length 9 [2020-10-16 12:05:18,418 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 12:05:18,418 INFO L481 AbstractCegarLoop]: Abstraction has 1802 states and 6784 transitions. [2020-10-16 12:05:18,418 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-16 12:05:18,419 INFO L276 IsEmpty]: Start isEmpty. Operand 1802 states and 6784 transitions. [2020-10-16 12:05:18,421 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-10-16 12:05:18,422 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 12:05:18,422 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 12:05:18,422 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-16 12:05:18,422 INFO L429 AbstractCegarLoop]: === Iteration 2 === [P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 12:05:18,423 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 12:05:18,423 INFO L82 PathProgramCache]: Analyzing trace with hash 440307530, now seen corresponding path program 1 times [2020-10-16 12:05:18,423 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 12:05:18,424 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [498489395] [2020-10-16 12:05:18,424 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 12:05:18,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 12:05:18,521 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 12:05:18,522 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [498489395] [2020-10-16 12:05:18,522 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 12:05:18,522 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-10-16 12:05:18,522 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1464037427] [2020-10-16 12:05:18,524 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-16 12:05:18,524 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 12:05:18,524 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-16 12:05:18,525 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-16 12:05:18,525 INFO L87 Difference]: Start difference. First operand 1802 states and 6784 transitions. Second operand 3 states. [2020-10-16 12:05:18,552 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 12:05:18,553 INFO L93 Difference]: Finished difference Result 1762 states and 6602 transitions. [2020-10-16 12:05:18,554 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-16 12:05:18,554 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 11 [2020-10-16 12:05:18,554 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 12:05:18,572 INFO L225 Difference]: With dead ends: 1762 [2020-10-16 12:05:18,572 INFO L226 Difference]: Without dead ends: 1762 [2020-10-16 12:05:18,573 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-16 12:05:18,584 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1762 states. [2020-10-16 12:05:18,650 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1762 to 1762. [2020-10-16 12:05:18,650 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1762 states. [2020-10-16 12:05:18,671 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1762 states to 1762 states and 6602 transitions. [2020-10-16 12:05:18,671 INFO L78 Accepts]: Start accepts. Automaton has 1762 states and 6602 transitions. Word has length 11 [2020-10-16 12:05:18,671 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 12:05:18,672 INFO L481 AbstractCegarLoop]: Abstraction has 1762 states and 6602 transitions. [2020-10-16 12:05:18,672 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-16 12:05:18,672 INFO L276 IsEmpty]: Start isEmpty. Operand 1762 states and 6602 transitions. [2020-10-16 12:05:18,679 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-10-16 12:05:18,679 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 12:05:18,679 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 12:05:18,680 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-16 12:05:18,680 INFO L429 AbstractCegarLoop]: === Iteration 3 === [P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 12:05:18,680 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 12:05:18,680 INFO L82 PathProgramCache]: Analyzing trace with hash 249955351, now seen corresponding path program 1 times [2020-10-16 12:05:18,681 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 12:05:18,681 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [504495309] [2020-10-16 12:05:18,681 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 12:05:18,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 12:05:18,832 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 12:05:18,832 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [504495309] [2020-10-16 12:05:18,833 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 12:05:18,833 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-10-16 12:05:18,834 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1221726254] [2020-10-16 12:05:18,835 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-16 12:05:18,835 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 12:05:18,835 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-16 12:05:18,835 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-16 12:05:18,835 INFO L87 Difference]: Start difference. First operand 1762 states and 6602 transitions. Second operand 3 states. [2020-10-16 12:05:18,864 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 12:05:18,864 INFO L93 Difference]: Finished difference Result 1722 states and 6420 transitions. [2020-10-16 12:05:18,865 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-16 12:05:18,865 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 12 [2020-10-16 12:05:18,866 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 12:05:18,882 INFO L225 Difference]: With dead ends: 1722 [2020-10-16 12:05:18,883 INFO L226 Difference]: Without dead ends: 1722 [2020-10-16 12:05:18,883 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-16 12:05:18,895 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1722 states. [2020-10-16 12:05:18,941 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1722 to 1722. [2020-10-16 12:05:18,941 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1722 states. [2020-10-16 12:05:18,954 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1722 states to 1722 states and 6420 transitions. [2020-10-16 12:05:18,954 INFO L78 Accepts]: Start accepts. Automaton has 1722 states and 6420 transitions. Word has length 12 [2020-10-16 12:05:18,954 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 12:05:18,955 INFO L481 AbstractCegarLoop]: Abstraction has 1722 states and 6420 transitions. [2020-10-16 12:05:18,955 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-16 12:05:18,955 INFO L276 IsEmpty]: Start isEmpty. Operand 1722 states and 6420 transitions. [2020-10-16 12:05:18,957 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-10-16 12:05:18,957 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 12:05:18,961 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 12:05:18,961 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-16 12:05:18,961 INFO L429 AbstractCegarLoop]: === Iteration 4 === [P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 12:05:18,961 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 12:05:18,968 INFO L82 PathProgramCache]: Analyzing trace with hash -840938303, now seen corresponding path program 1 times [2020-10-16 12:05:18,969 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 12:05:18,969 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1350479922] [2020-10-16 12:05:18,969 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 12:05:19,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 12:05:19,084 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 12:05:19,085 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1350479922] [2020-10-16 12:05:19,085 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 12:05:19,085 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-10-16 12:05:19,085 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1558202116] [2020-10-16 12:05:19,087 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-16 12:05:19,087 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 12:05:19,087 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-16 12:05:19,087 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-16 12:05:19,087 INFO L87 Difference]: Start difference. First operand 1722 states and 6420 transitions. Second operand 3 states. [2020-10-16 12:05:19,131 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 12:05:19,131 INFO L93 Difference]: Finished difference Result 1700 states and 6324 transitions. [2020-10-16 12:05:19,132 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-16 12:05:19,132 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 13 [2020-10-16 12:05:19,133 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 12:05:19,148 INFO L225 Difference]: With dead ends: 1700 [2020-10-16 12:05:19,148 INFO L226 Difference]: Without dead ends: 1700 [2020-10-16 12:05:19,149 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-16 12:05:19,159 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1700 states. [2020-10-16 12:05:19,209 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1700 to 1700. [2020-10-16 12:05:19,210 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1700 states. [2020-10-16 12:05:19,221 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1700 states to 1700 states and 6324 transitions. [2020-10-16 12:05:19,221 INFO L78 Accepts]: Start accepts. Automaton has 1700 states and 6324 transitions. Word has length 13 [2020-10-16 12:05:19,221 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 12:05:19,221 INFO L481 AbstractCegarLoop]: Abstraction has 1700 states and 6324 transitions. [2020-10-16 12:05:19,222 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-16 12:05:19,222 INFO L276 IsEmpty]: Start isEmpty. Operand 1700 states and 6324 transitions. [2020-10-16 12:05:19,224 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-10-16 12:05:19,224 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 12:05:19,224 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 12:05:19,224 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-16 12:05:19,225 INFO L429 AbstractCegarLoop]: === Iteration 5 === [P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 12:05:19,225 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 12:05:19,225 INFO L82 PathProgramCache]: Analyzing trace with hash -333997007, now seen corresponding path program 1 times [2020-10-16 12:05:19,225 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 12:05:19,225 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [947821290] [2020-10-16 12:05:19,226 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 12:05:19,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 12:05:19,378 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 12:05:19,379 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [947821290] [2020-10-16 12:05:19,379 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 12:05:19,379 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-16 12:05:19,380 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [153172789] [2020-10-16 12:05:19,380 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-16 12:05:19,380 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 12:05:19,380 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-16 12:05:19,381 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-16 12:05:19,381 INFO L87 Difference]: Start difference. First operand 1700 states and 6324 transitions. Second operand 5 states. [2020-10-16 12:05:19,523 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 12:05:19,524 INFO L93 Difference]: Finished difference Result 1674 states and 6208 transitions. [2020-10-16 12:05:19,525 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-16 12:05:19,525 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 14 [2020-10-16 12:05:19,526 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 12:05:19,544 INFO L225 Difference]: With dead ends: 1674 [2020-10-16 12:05:19,544 INFO L226 Difference]: Without dead ends: 1674 [2020-10-16 12:05:19,545 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2020-10-16 12:05:19,557 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1674 states. [2020-10-16 12:05:19,672 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1674 to 1658. [2020-10-16 12:05:19,672 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1658 states. [2020-10-16 12:05:19,681 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1658 states to 1658 states and 6152 transitions. [2020-10-16 12:05:19,682 INFO L78 Accepts]: Start accepts. Automaton has 1658 states and 6152 transitions. Word has length 14 [2020-10-16 12:05:19,682 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 12:05:19,682 INFO L481 AbstractCegarLoop]: Abstraction has 1658 states and 6152 transitions. [2020-10-16 12:05:19,682 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-16 12:05:19,682 INFO L276 IsEmpty]: Start isEmpty. Operand 1658 states and 6152 transitions. [2020-10-16 12:05:19,685 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-10-16 12:05:19,685 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 12:05:19,685 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 12:05:19,685 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-16 12:05:19,685 INFO L429 AbstractCegarLoop]: === Iteration 6 === [P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 12:05:19,686 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 12:05:19,686 INFO L82 PathProgramCache]: Analyzing trace with hash -298426553, now seen corresponding path program 1 times [2020-10-16 12:05:19,686 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 12:05:19,686 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1689246217] [2020-10-16 12:05:19,687 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 12:05:19,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 12:05:19,781 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 12:05:19,781 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1689246217] [2020-10-16 12:05:19,782 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 12:05:19,782 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-16 12:05:19,782 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [695939216] [2020-10-16 12:05:19,782 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-16 12:05:19,783 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 12:05:19,783 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-16 12:05:19,783 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-16 12:05:19,783 INFO L87 Difference]: Start difference. First operand 1658 states and 6152 transitions. Second operand 5 states. [2020-10-16 12:05:19,860 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 12:05:19,860 INFO L93 Difference]: Finished difference Result 1614 states and 5960 transitions. [2020-10-16 12:05:19,861 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-16 12:05:19,861 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 14 [2020-10-16 12:05:19,862 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 12:05:19,875 INFO L225 Difference]: With dead ends: 1614 [2020-10-16 12:05:19,876 INFO L226 Difference]: Without dead ends: 1614 [2020-10-16 12:05:19,876 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-16 12:05:19,885 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1614 states. [2020-10-16 12:05:19,923 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1614 to 1614. [2020-10-16 12:05:19,924 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1614 states. [2020-10-16 12:05:19,933 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1614 states to 1614 states and 5960 transitions. [2020-10-16 12:05:19,933 INFO L78 Accepts]: Start accepts. Automaton has 1614 states and 5960 transitions. Word has length 14 [2020-10-16 12:05:19,933 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 12:05:19,933 INFO L481 AbstractCegarLoop]: Abstraction has 1614 states and 5960 transitions. [2020-10-16 12:05:19,934 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-16 12:05:19,934 INFO L276 IsEmpty]: Start isEmpty. Operand 1614 states and 5960 transitions. [2020-10-16 12:05:19,936 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-10-16 12:05:19,937 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 12:05:19,937 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 12:05:19,937 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-16 12:05:19,937 INFO L429 AbstractCegarLoop]: === Iteration 7 === [P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 12:05:19,937 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 12:05:19,938 INFO L82 PathProgramCache]: Analyzing trace with hash -1763115561, now seen corresponding path program 1 times [2020-10-16 12:05:19,938 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 12:05:19,938 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [718160248] [2020-10-16 12:05:19,938 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 12:05:19,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 12:05:20,027 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 12:05:20,027 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [718160248] [2020-10-16 12:05:20,027 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 12:05:20,028 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-16 12:05:20,028 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1150272449] [2020-10-16 12:05:20,028 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-16 12:05:20,028 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 12:05:20,029 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-16 12:05:20,029 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-16 12:05:20,029 INFO L87 Difference]: Start difference. First operand 1614 states and 5960 transitions. Second operand 6 states. [2020-10-16 12:05:20,136 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 12:05:20,136 INFO L93 Difference]: Finished difference Result 1726 states and 6416 transitions. [2020-10-16 12:05:20,137 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-16 12:05:20,138 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 15 [2020-10-16 12:05:20,138 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 12:05:20,153 INFO L225 Difference]: With dead ends: 1726 [2020-10-16 12:05:20,154 INFO L226 Difference]: Without dead ends: 1726 [2020-10-16 12:05:20,154 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-16 12:05:20,163 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1726 states. [2020-10-16 12:05:20,210 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1726 to 1726. [2020-10-16 12:05:20,210 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1726 states. [2020-10-16 12:05:20,219 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1726 states to 1726 states and 6416 transitions. [2020-10-16 12:05:20,220 INFO L78 Accepts]: Start accepts. Automaton has 1726 states and 6416 transitions. Word has length 15 [2020-10-16 12:05:20,220 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 12:05:20,220 INFO L481 AbstractCegarLoop]: Abstraction has 1726 states and 6416 transitions. [2020-10-16 12:05:20,220 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-16 12:05:20,221 INFO L276 IsEmpty]: Start isEmpty. Operand 1726 states and 6416 transitions. [2020-10-16 12:05:20,224 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-10-16 12:05:20,224 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 12:05:20,224 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 12:05:20,224 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-16 12:05:20,225 INFO L429 AbstractCegarLoop]: === Iteration 8 === [P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 12:05:20,225 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 12:05:20,225 INFO L82 PathProgramCache]: Analyzing trace with hash -1763973021, now seen corresponding path program 2 times [2020-10-16 12:05:20,225 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 12:05:20,226 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1399449362] [2020-10-16 12:05:20,226 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 12:05:20,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 12:05:20,355 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 12:05:20,355 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1399449362] [2020-10-16 12:05:20,356 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 12:05:20,356 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-16 12:05:20,356 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [61752435] [2020-10-16 12:05:20,357 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-16 12:05:20,357 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 12:05:20,357 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-16 12:05:20,357 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-10-16 12:05:20,357 INFO L87 Difference]: Start difference. First operand 1726 states and 6416 transitions. Second operand 6 states. [2020-10-16 12:05:20,456 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 12:05:20,456 INFO L93 Difference]: Finished difference Result 1854 states and 6838 transitions. [2020-10-16 12:05:20,457 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-16 12:05:20,457 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 15 [2020-10-16 12:05:20,458 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 12:05:20,474 INFO L225 Difference]: With dead ends: 1854 [2020-10-16 12:05:20,475 INFO L226 Difference]: Without dead ends: 1854 [2020-10-16 12:05:20,475 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-10-16 12:05:20,484 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1854 states. [2020-10-16 12:05:20,527 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1854 to 1682. [2020-10-16 12:05:20,527 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1682 states. [2020-10-16 12:05:20,536 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1682 states to 1682 states and 6188 transitions. [2020-10-16 12:05:20,536 INFO L78 Accepts]: Start accepts. Automaton has 1682 states and 6188 transitions. Word has length 15 [2020-10-16 12:05:20,536 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 12:05:20,536 INFO L481 AbstractCegarLoop]: Abstraction has 1682 states and 6188 transitions. [2020-10-16 12:05:20,537 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-16 12:05:20,537 INFO L276 IsEmpty]: Start isEmpty. Operand 1682 states and 6188 transitions. [2020-10-16 12:05:20,540 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-10-16 12:05:20,540 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 12:05:20,540 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 12:05:20,541 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-16 12:05:20,541 INFO L429 AbstractCegarLoop]: === Iteration 9 === [P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 12:05:20,541 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 12:05:20,541 INFO L82 PathProgramCache]: Analyzing trace with hash 104794598, now seen corresponding path program 1 times [2020-10-16 12:05:20,541 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 12:05:20,542 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1043857085] [2020-10-16 12:05:20,542 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 12:05:20,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 12:05:20,719 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 12:05:20,719 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1043857085] [2020-10-16 12:05:20,720 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 12:05:20,720 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-16 12:05:20,720 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1148398657] [2020-10-16 12:05:20,720 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-16 12:05:20,721 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 12:05:20,721 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-16 12:05:20,721 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-16 12:05:20,721 INFO L87 Difference]: Start difference. First operand 1682 states and 6188 transitions. Second operand 7 states. [2020-10-16 12:05:20,931 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 12:05:20,931 INFO L93 Difference]: Finished difference Result 1874 states and 6892 transitions. [2020-10-16 12:05:20,932 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-16 12:05:20,932 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 16 [2020-10-16 12:05:20,933 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 12:05:20,943 INFO L225 Difference]: With dead ends: 1874 [2020-10-16 12:05:20,943 INFO L226 Difference]: Without dead ends: 1874 [2020-10-16 12:05:20,943 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2020-10-16 12:05:20,953 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1874 states. [2020-10-16 12:05:21,051 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1874 to 1874. [2020-10-16 12:05:21,051 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1874 states. [2020-10-16 12:05:21,060 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1874 states to 1874 states and 6892 transitions. [2020-10-16 12:05:21,060 INFO L78 Accepts]: Start accepts. Automaton has 1874 states and 6892 transitions. Word has length 16 [2020-10-16 12:05:21,060 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 12:05:21,061 INFO L481 AbstractCegarLoop]: Abstraction has 1874 states and 6892 transitions. [2020-10-16 12:05:21,061 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-16 12:05:21,061 INFO L276 IsEmpty]: Start isEmpty. Operand 1874 states and 6892 transitions. [2020-10-16 12:05:21,065 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-10-16 12:05:21,066 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 12:05:21,066 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 12:05:21,066 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-16 12:05:21,066 INFO L429 AbstractCegarLoop]: === Iteration 10 === [P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 12:05:21,067 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 12:05:21,067 INFO L82 PathProgramCache]: Analyzing trace with hash 1177270598, now seen corresponding path program 2 times [2020-10-16 12:05:21,067 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 12:05:21,068 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [153114973] [2020-10-16 12:05:21,068 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 12:05:21,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 12:05:21,254 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 12:05:21,254 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [153114973] [2020-10-16 12:05:21,254 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 12:05:21,255 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-16 12:05:21,255 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [415190792] [2020-10-16 12:05:21,255 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-16 12:05:21,256 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 12:05:21,256 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-16 12:05:21,256 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-16 12:05:21,256 INFO L87 Difference]: Start difference. First operand 1874 states and 6892 transitions. Second operand 7 states. [2020-10-16 12:05:21,409 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 12:05:21,409 INFO L93 Difference]: Finished difference Result 1834 states and 6728 transitions. [2020-10-16 12:05:21,410 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-16 12:05:21,410 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 16 [2020-10-16 12:05:21,410 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 12:05:21,419 INFO L225 Difference]: With dead ends: 1834 [2020-10-16 12:05:21,420 INFO L226 Difference]: Without dead ends: 1834 [2020-10-16 12:05:21,420 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2020-10-16 12:05:21,428 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1834 states. [2020-10-16 12:05:21,469 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1834 to 1626. [2020-10-16 12:05:21,469 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1626 states. [2020-10-16 12:05:21,476 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1626 states to 1626 states and 5968 transitions. [2020-10-16 12:05:21,477 INFO L78 Accepts]: Start accepts. Automaton has 1626 states and 5968 transitions. Word has length 16 [2020-10-16 12:05:21,477 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 12:05:21,477 INFO L481 AbstractCegarLoop]: Abstraction has 1626 states and 5968 transitions. [2020-10-16 12:05:21,477 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-16 12:05:21,478 INFO L276 IsEmpty]: Start isEmpty. Operand 1626 states and 5968 transitions. [2020-10-16 12:05:21,481 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-10-16 12:05:21,481 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 12:05:21,481 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 12:05:21,482 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-16 12:05:21,482 INFO L429 AbstractCegarLoop]: === Iteration 11 === [P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 12:05:21,482 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 12:05:21,482 INFO L82 PathProgramCache]: Analyzing trace with hash 974833126, now seen corresponding path program 1 times [2020-10-16 12:05:21,482 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 12:05:21,483 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1605417653] [2020-10-16 12:05:21,483 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 12:05:21,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 12:05:21,562 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 12:05:21,562 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1605417653] [2020-10-16 12:05:21,562 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 12:05:21,563 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-16 12:05:21,563 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [878887847] [2020-10-16 12:05:21,563 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-16 12:05:21,563 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 12:05:21,564 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-16 12:05:21,564 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-16 12:05:21,564 INFO L87 Difference]: Start difference. First operand 1626 states and 5968 transitions. Second operand 4 states. [2020-10-16 12:05:21,605 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 12:05:21,605 INFO L93 Difference]: Finished difference Result 1728 states and 5807 transitions. [2020-10-16 12:05:21,606 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-16 12:05:21,606 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 16 [2020-10-16 12:05:21,607 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 12:05:21,612 INFO L225 Difference]: With dead ends: 1728 [2020-10-16 12:05:21,613 INFO L226 Difference]: Without dead ends: 1296 [2020-10-16 12:05:21,613 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-16 12:05:21,620 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1296 states. [2020-10-16 12:05:21,664 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1296 to 1296. [2020-10-16 12:05:21,665 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1296 states. [2020-10-16 12:05:21,670 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1296 states to 1296 states and 4318 transitions. [2020-10-16 12:05:21,670 INFO L78 Accepts]: Start accepts. Automaton has 1296 states and 4318 transitions. Word has length 16 [2020-10-16 12:05:21,670 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 12:05:21,671 INFO L481 AbstractCegarLoop]: Abstraction has 1296 states and 4318 transitions. [2020-10-16 12:05:21,671 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-16 12:05:21,671 INFO L276 IsEmpty]: Start isEmpty. Operand 1296 states and 4318 transitions. [2020-10-16 12:05:21,674 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-10-16 12:05:21,674 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 12:05:21,674 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 12:05:21,674 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-16 12:05:21,674 INFO L429 AbstractCegarLoop]: === Iteration 12 === [P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 12:05:21,675 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 12:05:21,675 INFO L82 PathProgramCache]: Analyzing trace with hash -350364005, now seen corresponding path program 1 times [2020-10-16 12:05:21,675 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 12:05:21,675 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [143329318] [2020-10-16 12:05:21,676 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 12:05:21,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 12:05:21,793 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 12:05:21,794 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [143329318] [2020-10-16 12:05:21,794 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 12:05:21,794 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-16 12:05:21,795 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1801217937] [2020-10-16 12:05:21,795 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-16 12:05:21,796 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 12:05:21,796 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-16 12:05:21,796 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-16 12:05:21,796 INFO L87 Difference]: Start difference. First operand 1296 states and 4318 transitions. Second operand 5 states. [2020-10-16 12:05:21,853 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 12:05:21,854 INFO L93 Difference]: Finished difference Result 1156 states and 3549 transitions. [2020-10-16 12:05:21,855 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-16 12:05:21,855 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 17 [2020-10-16 12:05:21,855 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 12:05:21,859 INFO L225 Difference]: With dead ends: 1156 [2020-10-16 12:05:21,859 INFO L226 Difference]: Without dead ends: 877 [2020-10-16 12:05:21,865 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-10-16 12:05:21,868 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 877 states. [2020-10-16 12:05:21,887 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 877 to 877. [2020-10-16 12:05:21,887 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 877 states. [2020-10-16 12:05:21,890 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 877 states to 877 states and 2642 transitions. [2020-10-16 12:05:21,891 INFO L78 Accepts]: Start accepts. Automaton has 877 states and 2642 transitions. Word has length 17 [2020-10-16 12:05:21,891 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 12:05:21,891 INFO L481 AbstractCegarLoop]: Abstraction has 877 states and 2642 transitions. [2020-10-16 12:05:21,891 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-16 12:05:21,891 INFO L276 IsEmpty]: Start isEmpty. Operand 877 states and 2642 transitions. [2020-10-16 12:05:21,894 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-10-16 12:05:21,894 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 12:05:21,894 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 12:05:21,894 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-16 12:05:21,895 INFO L429 AbstractCegarLoop]: === Iteration 13 === [P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 12:05:21,895 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 12:05:21,895 INFO L82 PathProgramCache]: Analyzing trace with hash 1278143232, now seen corresponding path program 1 times [2020-10-16 12:05:21,895 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 12:05:21,895 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1580033578] [2020-10-16 12:05:21,895 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 12:05:21,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 12:05:21,967 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 12:05:21,967 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1580033578] [2020-10-16 12:05:21,968 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 12:05:21,968 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-16 12:05:21,969 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [539236956] [2020-10-16 12:05:21,969 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-16 12:05:21,969 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 12:05:21,970 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-16 12:05:21,971 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-16 12:05:21,971 INFO L87 Difference]: Start difference. First operand 877 states and 2642 transitions. Second operand 3 states. [2020-10-16 12:05:21,988 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 12:05:21,989 INFO L93 Difference]: Finished difference Result 1249 states and 3669 transitions. [2020-10-16 12:05:21,990 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-16 12:05:21,991 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 18 [2020-10-16 12:05:21,991 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 12:05:21,995 INFO L225 Difference]: With dead ends: 1249 [2020-10-16 12:05:21,996 INFO L226 Difference]: Without dead ends: 887 [2020-10-16 12:05:21,996 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-16 12:05:22,002 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 887 states. [2020-10-16 12:05:22,026 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 887 to 871. [2020-10-16 12:05:22,027 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 871 states. [2020-10-16 12:05:22,030 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 871 states to 871 states and 2481 transitions. [2020-10-16 12:05:22,031 INFO L78 Accepts]: Start accepts. Automaton has 871 states and 2481 transitions. Word has length 18 [2020-10-16 12:05:22,031 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 12:05:22,031 INFO L481 AbstractCegarLoop]: Abstraction has 871 states and 2481 transitions. [2020-10-16 12:05:22,032 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-16 12:05:22,032 INFO L276 IsEmpty]: Start isEmpty. Operand 871 states and 2481 transitions. [2020-10-16 12:05:22,035 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-10-16 12:05:22,035 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 12:05:22,036 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 12:05:22,036 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-16 12:05:22,036 INFO L429 AbstractCegarLoop]: === Iteration 14 === [P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 12:05:22,037 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 12:05:22,037 INFO L82 PathProgramCache]: Analyzing trace with hash 125424893, now seen corresponding path program 1 times [2020-10-16 12:05:22,037 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 12:05:22,038 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [369719822] [2020-10-16 12:05:22,038 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 12:05:22,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 12:05:22,119 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 12:05:22,120 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [369719822] [2020-10-16 12:05:22,120 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 12:05:22,120 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-16 12:05:22,121 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1810675092] [2020-10-16 12:05:22,121 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-16 12:05:22,122 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 12:05:22,122 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-16 12:05:22,122 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-16 12:05:22,122 INFO L87 Difference]: Start difference. First operand 871 states and 2481 transitions. Second operand 4 states. [2020-10-16 12:05:22,152 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 12:05:22,152 INFO L93 Difference]: Finished difference Result 1201 states and 3360 transitions. [2020-10-16 12:05:22,153 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-16 12:05:22,153 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 19 [2020-10-16 12:05:22,153 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 12:05:22,155 INFO L225 Difference]: With dead ends: 1201 [2020-10-16 12:05:22,156 INFO L226 Difference]: Without dead ends: 561 [2020-10-16 12:05:22,157 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-16 12:05:22,160 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 561 states. [2020-10-16 12:05:22,175 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 561 to 561. [2020-10-16 12:05:22,175 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 561 states. [2020-10-16 12:05:22,178 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 561 states to 561 states and 1483 transitions. [2020-10-16 12:05:22,178 INFO L78 Accepts]: Start accepts. Automaton has 561 states and 1483 transitions. Word has length 19 [2020-10-16 12:05:22,178 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 12:05:22,179 INFO L481 AbstractCegarLoop]: Abstraction has 561 states and 1483 transitions. [2020-10-16 12:05:22,179 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-16 12:05:22,179 INFO L276 IsEmpty]: Start isEmpty. Operand 561 states and 1483 transitions. [2020-10-16 12:05:22,181 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-10-16 12:05:22,181 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 12:05:22,181 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 12:05:22,182 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-10-16 12:05:22,182 INFO L429 AbstractCegarLoop]: === Iteration 15 === [P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 12:05:22,182 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 12:05:22,182 INFO L82 PathProgramCache]: Analyzing trace with hash -900066335, now seen corresponding path program 2 times [2020-10-16 12:05:22,183 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 12:05:22,183 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [780821539] [2020-10-16 12:05:22,183 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 12:05:22,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 12:05:22,253 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 12:05:22,254 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [780821539] [2020-10-16 12:05:22,254 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 12:05:22,255 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-16 12:05:22,255 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1654809442] [2020-10-16 12:05:22,255 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-16 12:05:22,256 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 12:05:22,256 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-16 12:05:22,256 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-16 12:05:22,256 INFO L87 Difference]: Start difference. First operand 561 states and 1483 transitions. Second operand 5 states. [2020-10-16 12:05:22,324 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 12:05:22,324 INFO L93 Difference]: Finished difference Result 757 states and 1944 transitions. [2020-10-16 12:05:22,325 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-16 12:05:22,326 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 19 [2020-10-16 12:05:22,326 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 12:05:22,328 INFO L225 Difference]: With dead ends: 757 [2020-10-16 12:05:22,328 INFO L226 Difference]: Without dead ends: 569 [2020-10-16 12:05:22,330 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-10-16 12:05:22,332 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 569 states. [2020-10-16 12:05:22,342 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 569 to 551. [2020-10-16 12:05:22,342 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 551 states. [2020-10-16 12:05:22,344 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 551 states to 551 states and 1387 transitions. [2020-10-16 12:05:22,344 INFO L78 Accepts]: Start accepts. Automaton has 551 states and 1387 transitions. Word has length 19 [2020-10-16 12:05:22,344 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 12:05:22,344 INFO L481 AbstractCegarLoop]: Abstraction has 551 states and 1387 transitions. [2020-10-16 12:05:22,344 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-16 12:05:22,344 INFO L276 IsEmpty]: Start isEmpty. Operand 551 states and 1387 transitions. [2020-10-16 12:05:22,346 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-10-16 12:05:22,346 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 12:05:22,346 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 12:05:22,346 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-10-16 12:05:22,346 INFO L429 AbstractCegarLoop]: === Iteration 16 === [P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 12:05:22,347 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 12:05:22,347 INFO L82 PathProgramCache]: Analyzing trace with hash -2026188855, now seen corresponding path program 1 times [2020-10-16 12:05:22,347 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 12:05:22,347 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1007159273] [2020-10-16 12:05:22,347 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 12:05:22,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 12:05:22,430 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 12:05:22,431 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1007159273] [2020-10-16 12:05:22,431 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 12:05:22,431 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-16 12:05:22,431 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1881524724] [2020-10-16 12:05:22,432 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-16 12:05:22,432 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 12:05:22,432 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-16 12:05:22,432 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-10-16 12:05:22,432 INFO L87 Difference]: Start difference. First operand 551 states and 1387 transitions. Second operand 6 states. [2020-10-16 12:05:22,500 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 12:05:22,501 INFO L93 Difference]: Finished difference Result 474 states and 1145 transitions. [2020-10-16 12:05:22,501 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-16 12:05:22,502 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 19 [2020-10-16 12:05:22,502 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 12:05:22,503 INFO L225 Difference]: With dead ends: 474 [2020-10-16 12:05:22,503 INFO L226 Difference]: Without dead ends: 358 [2020-10-16 12:05:22,504 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2020-10-16 12:05:22,505 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 358 states. [2020-10-16 12:05:22,512 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 358 to 338. [2020-10-16 12:05:22,512 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 338 states. [2020-10-16 12:05:22,513 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 338 states to 338 states and 790 transitions. [2020-10-16 12:05:22,514 INFO L78 Accepts]: Start accepts. Automaton has 338 states and 790 transitions. Word has length 19 [2020-10-16 12:05:22,514 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 12:05:22,514 INFO L481 AbstractCegarLoop]: Abstraction has 338 states and 790 transitions. [2020-10-16 12:05:22,514 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-16 12:05:22,514 INFO L276 IsEmpty]: Start isEmpty. Operand 338 states and 790 transitions. [2020-10-16 12:05:22,515 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-10-16 12:05:22,516 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 12:05:22,516 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 12:05:22,516 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-10-16 12:05:22,516 INFO L429 AbstractCegarLoop]: === Iteration 17 === [P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 12:05:22,516 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 12:05:22,517 INFO L82 PathProgramCache]: Analyzing trace with hash -1225847851, now seen corresponding path program 1 times [2020-10-16 12:05:22,517 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 12:05:22,517 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1848158406] [2020-10-16 12:05:22,517 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 12:05:22,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 12:05:22,623 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 12:05:22,624 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1848158406] [2020-10-16 12:05:22,624 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 12:05:22,624 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-16 12:05:22,625 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [900488773] [2020-10-16 12:05:22,628 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-16 12:05:22,628 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 12:05:22,628 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-16 12:05:22,629 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-10-16 12:05:22,629 INFO L87 Difference]: Start difference. First operand 338 states and 790 transitions. Second operand 7 states. [2020-10-16 12:05:22,785 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 12:05:22,785 INFO L93 Difference]: Finished difference Result 317 states and 748 transitions. [2020-10-16 12:05:22,786 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-16 12:05:22,786 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 22 [2020-10-16 12:05:22,786 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 12:05:22,787 INFO L225 Difference]: With dead ends: 317 [2020-10-16 12:05:22,787 INFO L226 Difference]: Without dead ends: 99 [2020-10-16 12:05:22,788 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=45, Invalid=65, Unknown=0, NotChecked=0, Total=110 [2020-10-16 12:05:22,788 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99 states. [2020-10-16 12:05:22,794 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99 to 91. [2020-10-16 12:05:22,794 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 91 states. [2020-10-16 12:05:22,794 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 91 states and 197 transitions. [2020-10-16 12:05:22,794 INFO L78 Accepts]: Start accepts. Automaton has 91 states and 197 transitions. Word has length 22 [2020-10-16 12:05:22,795 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 12:05:22,795 INFO L481 AbstractCegarLoop]: Abstraction has 91 states and 197 transitions. [2020-10-16 12:05:22,795 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-16 12:05:22,795 INFO L276 IsEmpty]: Start isEmpty. Operand 91 states and 197 transitions. [2020-10-16 12:05:22,795 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-10-16 12:05:22,796 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 12:05:22,796 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 12:05:22,796 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-10-16 12:05:22,796 INFO L429 AbstractCegarLoop]: === Iteration 18 === [P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 12:05:22,796 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 12:05:22,797 INFO L82 PathProgramCache]: Analyzing trace with hash 358783119, now seen corresponding path program 1 times [2020-10-16 12:05:22,797 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 12:05:22,799 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [991543082] [2020-10-16 12:05:22,800 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 12:05:22,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-16 12:05:22,860 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-16 12:05:22,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-16 12:05:22,913 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-16 12:05:22,970 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-16 12:05:22,970 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-16 12:05:22,970 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2020-10-16 12:05:22,972 WARN L264 etLargeBlockEncoding]: Failed to translate choice composition: Branch encoders not available. [2020-10-16 12:05:22,987 WARN L124 codingBacktranslator]: Skipped backtranslation of ATE [954] [954] L3-->L841: Formula: (let ((.cse7 (= (mod ~z$r_buff0_thd0~0_In1882650722 256) 0)) (.cse6 (= (mod ~z$w_buff0_used~0_In1882650722 256) 0)) (.cse9 (= (mod ~z$w_buff1_used~0_In1882650722 256) 0)) (.cse8 (= 0 (mod ~z$r_buff1_thd0~0_In1882650722 256)))) (let ((.cse5 (or .cse9 .cse8)) (.cse3 (not .cse9)) (.cse4 (not .cse8)) (.cse2 (or .cse7 .cse6)) (.cse0 (not .cse7)) (.cse1 (not .cse6))) (and (or (and .cse0 .cse1 (= ~z~0_Out1882650722 ~z$w_buff0~0_In1882650722)) (and .cse2 (or (and (= ~z$w_buff1~0_In1882650722 ~z~0_Out1882650722) .cse3 .cse4) (and .cse5 (= ~z~0_In1882650722 ~z~0_Out1882650722))))) (not (= ULTIMATE.start_assume_abort_if_not_~cond_In1882650722 0)) (= ~z$r_buff0_thd0~0_In1882650722 ~z$r_buff0_thd0~0_Out1882650722) (or (and .cse5 (= ~z$w_buff1_used~0_In1882650722 ~z$w_buff1_used~0_Out1882650722)) (and (= ~z$w_buff1_used~0_Out1882650722 0) .cse3 .cse4)) (= ~z$r_buff1_thd0~0_Out1882650722 ~z$r_buff1_thd0~0_In1882650722) (or (and .cse2 (= ~z$w_buff0_used~0_In1882650722 ~z$w_buff0_used~0_Out1882650722)) (and .cse0 .cse1 (= ~z$w_buff0_used~0_Out1882650722 0)))))) InVars {~z$r_buff0_thd0~0=~z$r_buff0_thd0~0_In1882650722, ULTIMATE.start_assume_abort_if_not_~cond=ULTIMATE.start_assume_abort_if_not_~cond_In1882650722, ~z$w_buff0_used~0=~z$w_buff0_used~0_In1882650722, ~z$w_buff0~0=~z$w_buff0~0_In1882650722, ~z$r_buff1_thd0~0=~z$r_buff1_thd0~0_In1882650722, ~z$w_buff1_used~0=~z$w_buff1_used~0_In1882650722, ~z$w_buff1~0=~z$w_buff1~0_In1882650722, ~z~0=~z~0_In1882650722} OutVars{~z$w_buff0_used~0=~z$w_buff0_used~0_Out1882650722, ULTIMATE.start_main_#t~ite18=|ULTIMATE.start_main_#t~ite18_Out1882650722|, ~z$w_buff0~0=~z$w_buff0~0_In1882650722, ULTIMATE.start_main_#t~ite19=|ULTIMATE.start_main_#t~ite19_Out1882650722|, ~z$w_buff1_used~0=~z$w_buff1_used~0_Out1882650722, ~z$w_buff1~0=~z$w_buff1~0_In1882650722, ULTIMATE.start_main_#t~ite20=|ULTIMATE.start_main_#t~ite20_Out1882650722|, ULTIMATE.start_main_#t~ite21=|ULTIMATE.start_main_#t~ite21_Out1882650722|, ULTIMATE.start_main_#t~ite22=|ULTIMATE.start_main_#t~ite22_Out1882650722|, ULTIMATE.start_main_#t~ite23=|ULTIMATE.start_main_#t~ite23_Out1882650722|, ~z$r_buff0_thd0~0=~z$r_buff0_thd0~0_Out1882650722, ULTIMATE.start_assume_abort_if_not_~cond=ULTIMATE.start_assume_abort_if_not_~cond_In1882650722, ~z$r_buff1_thd0~0=~z$r_buff1_thd0~0_Out1882650722, ~z~0=~z~0_Out1882650722} AuxVars[] AssignedVars[~z$r_buff0_thd0~0, ~z$w_buff0_used~0, ULTIMATE.start_main_#t~ite18, ULTIMATE.start_main_#t~ite19, ~z$r_buff1_thd0~0, ~z$w_buff1_used~0, ~z~0, ULTIMATE.start_main_#t~ite20, ULTIMATE.start_main_#t~ite21, ULTIMATE.start_main_#t~ite22, ULTIMATE.start_main_#t~ite23] because there is no mapped edge [2020-10-16 12:05:22,999 WARN L219 RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented. [2020-10-16 12:05:23,000 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-16 12:05:23,002 WARN L219 RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented. [2020-10-16 12:05:23,002 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-16 12:05:23,002 WARN L219 RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented. [2020-10-16 12:05:23,002 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-16 12:05:23,003 WARN L219 RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented. [2020-10-16 12:05:23,003 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-16 12:05:23,003 WARN L219 RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented. [2020-10-16 12:05:23,003 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-16 12:05:23,003 WARN L219 RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented. [2020-10-16 12:05:23,003 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-16 12:05:23,006 WARN L219 RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented. [2020-10-16 12:05:23,006 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-16 12:05:23,006 WARN L219 RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented. [2020-10-16 12:05:23,006 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-16 12:05:23,006 WARN L219 RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented. [2020-10-16 12:05:23,007 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-16 12:05:23,007 WARN L219 RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented. [2020-10-16 12:05:23,007 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-16 12:05:23,007 WARN L219 RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented. [2020-10-16 12:05:23,007 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-16 12:05:23,007 WARN L219 RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented. [2020-10-16 12:05:23,007 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-16 12:05:23,008 WARN L219 RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented. [2020-10-16 12:05:23,008 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-16 12:05:23,008 WARN L219 RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented. [2020-10-16 12:05:23,009 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-16 12:05:23,009 WARN L219 RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented. [2020-10-16 12:05:23,009 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-16 12:05:23,013 WARN L219 RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented. [2020-10-16 12:05:23,014 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-16 12:05:23,014 WARN L219 RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented. [2020-10-16 12:05:23,014 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-16 12:05:23,014 WARN L219 RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented. [2020-10-16 12:05:23,014 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-16 12:05:23,014 WARN L219 RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented. [2020-10-16 12:05:23,015 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-16 12:05:23,015 WARN L219 RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented. [2020-10-16 12:05:23,015 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-16 12:05:23,015 WARN L219 RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented. [2020-10-16 12:05:23,015 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-16 12:05:23,015 WARN L219 RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented. [2020-10-16 12:05:23,016 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-16 12:05:23,016 WARN L219 RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented. [2020-10-16 12:05:23,016 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-16 12:05:23,016 WARN L219 RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented. [2020-10-16 12:05:23,017 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-16 12:05:23,017 WARN L219 RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented. [2020-10-16 12:05:23,017 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-16 12:05:23,108 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.10 12:05:23 BasicIcfg [2020-10-16 12:05:23,108 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-16 12:05:23,113 INFO L168 Benchmark]: Toolchain (without parser) took 17609.58 ms. Allocated memory was 139.5 MB in the beginning and 422.6 MB in the end (delta: 283.1 MB). Free memory was 100.5 MB in the beginning and 319.7 MB in the end (delta: -219.3 MB). Peak memory consumption was 63.8 MB. Max. memory is 7.1 GB. [2020-10-16 12:05:23,114 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 139.5 MB. Free memory was 121.0 MB in the beginning and 120.8 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. [2020-10-16 12:05:23,114 INFO L168 Benchmark]: CACSL2BoogieTranslator took 769.17 ms. Allocated memory was 139.5 MB in the beginning and 203.4 MB in the end (delta: 64.0 MB). Free memory was 100.2 MB in the beginning and 156.9 MB in the end (delta: -56.6 MB). Peak memory consumption was 24.9 MB. Max. memory is 7.1 GB. [2020-10-16 12:05:23,115 INFO L168 Benchmark]: Boogie Procedure Inliner took 70.52 ms. Allocated memory is still 203.4 MB. Free memory was 156.2 MB in the beginning and 153.6 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.6 MB. Max. memory is 7.1 GB. [2020-10-16 12:05:23,116 INFO L168 Benchmark]: Boogie Preprocessor took 43.03 ms. Allocated memory is still 203.4 MB. Free memory was 153.6 MB in the beginning and 150.9 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 7.1 GB. [2020-10-16 12:05:23,119 INFO L168 Benchmark]: RCFGBuilder took 2014.24 ms. Allocated memory was 203.4 MB in the beginning and 249.6 MB in the end (delta: 46.1 MB). Free memory was 150.9 MB in the beginning and 192.7 MB in the end (delta: -41.8 MB). Peak memory consumption was 104.0 MB. Max. memory is 7.1 GB. [2020-10-16 12:05:23,121 INFO L168 Benchmark]: TraceAbstraction took 14703.53 ms. Allocated memory was 249.6 MB in the beginning and 422.6 MB in the end (delta: 173.0 MB). Free memory was 192.7 MB in the beginning and 319.7 MB in the end (delta: -127.1 MB). Peak memory consumption was 46.0 MB. Max. memory is 7.1 GB. [2020-10-16 12:05:23,127 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 139.5 MB. Free memory was 121.0 MB in the beginning and 120.8 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 769.17 ms. Allocated memory was 139.5 MB in the beginning and 203.4 MB in the end (delta: 64.0 MB). Free memory was 100.2 MB in the beginning and 156.9 MB in the end (delta: -56.6 MB). Peak memory consumption was 24.9 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 70.52 ms. Allocated memory is still 203.4 MB. Free memory was 156.2 MB in the beginning and 153.6 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.6 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 43.03 ms. Allocated memory is still 203.4 MB. Free memory was 153.6 MB in the beginning and 150.9 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 7.1 GB. * RCFGBuilder took 2014.24 ms. Allocated memory was 203.4 MB in the beginning and 249.6 MB in the end (delta: 46.1 MB). Free memory was 150.9 MB in the beginning and 192.7 MB in the end (delta: -41.8 MB). Peak memory consumption was 104.0 MB. Max. memory is 7.1 GB. * TraceAbstraction took 14703.53 ms. Allocated memory was 249.6 MB in the beginning and 422.6 MB in the end (delta: 173.0 MB). Free memory was 192.7 MB in the beginning and 319.7 MB in the end (delta: -127.1 MB). Peak memory consumption was 46.0 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 1236 VarBasedMoverChecksPositive, 49 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 0 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 107 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 8.9s, 118 PlacesBefore, 44 PlacesAfterwards, 107 TransitionsBefore, 31 TransitionsAfterwards, 2352 CoEnabledTransitionPairs, 6 FixpointIterations, 34 TrivialSequentialCompositions, 46 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 4 ConcurrentYvCompositions, 2 ChoiceCompositions, 86 TotalNumberOfCompositions, 5641 MoverChecksTotal - CounterExampleResult [Line: 7]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L699] 0 int __unbuffered_cnt = 0; [L701] 0 int __unbuffered_p3_EAX = 0; [L703] 0 int a = 0; [L704] 0 _Bool main$tmp_guard0; [L705] 0 _Bool main$tmp_guard1; [L707] 0 int x = 0; [L709] 0 int y = 0; [L711] 0 int z = 0; [L712] 0 _Bool z$flush_delayed; [L713] 0 int z$mem_tmp; [L714] 0 _Bool z$r_buff0_thd0; [L715] 0 _Bool z$r_buff0_thd1; [L716] 0 _Bool z$r_buff0_thd2; [L717] 0 _Bool z$r_buff0_thd3; [L718] 0 _Bool z$r_buff0_thd4; [L719] 0 _Bool z$r_buff1_thd0; [L720] 0 _Bool z$r_buff1_thd1; [L721] 0 _Bool z$r_buff1_thd2; [L722] 0 _Bool z$r_buff1_thd3; [L723] 0 _Bool z$r_buff1_thd4; [L724] 0 _Bool z$read_delayed; [L725] 0 int *z$read_delayed_var; [L726] 0 int z$w_buff0; [L727] 0 _Bool z$w_buff0_used; [L728] 0 int z$w_buff1; [L729] 0 _Bool z$w_buff1_used; [L730] 0 _Bool weak$$choice0; [L731] 0 _Bool weak$$choice2; [L823] 0 pthread_t t1537; [L824] FCALL, FORK 0 pthread_create(&t1537, ((void *)0), P0, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p3_EAX=0, a=0, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=0, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0] [L825] 0 pthread_t t1538; [L826] FCALL, FORK 0 pthread_create(&t1538, ((void *)0), P1, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p3_EAX=0, a=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=0, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0] [L827] 0 pthread_t t1539; [L828] FCALL, FORK 0 pthread_create(&t1539, ((void *)0), P2, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p3_EAX=0, a=0, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=0, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0] [L829] 0 pthread_t t1540; [L830] FCALL, FORK 0 pthread_create(&t1540, ((void *)0), P3, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p3_EAX=0, a=0, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=0, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0] [L785] 4 z$w_buff1 = z$w_buff0 [L786] 4 z$w_buff0 = 2 [L787] 4 z$w_buff1_used = z$w_buff0_used [L788] 4 z$w_buff0_used = (_Bool)1 [L7] COND TRUE 4 !expression [L7] 4 __VERIFIER_error() [L790] 4 z$r_buff1_thd0 = z$r_buff0_thd0 [L791] 4 z$r_buff1_thd1 = z$r_buff0_thd1 [L792] 4 z$r_buff1_thd2 = z$r_buff0_thd2 [L793] 4 z$r_buff1_thd3 = z$r_buff0_thd3 [L794] 4 z$r_buff1_thd4 = z$r_buff0_thd4 [L795] 4 z$r_buff0_thd4 = (_Bool)1 VAL [__unbuffered_cnt=0, __unbuffered_p3_EAX=0, a=0, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=2, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0] [L798] 4 __unbuffered_p3_EAX = a VAL [__unbuffered_cnt=0, __unbuffered_p3_EAX=0, a=0, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=2, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0] [L735] 1 a = 1 VAL [__unbuffered_cnt=0, __unbuffered_p3_EAX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=2, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0] [L738] 1 x = 1 VAL [__unbuffered_cnt=0, __unbuffered_p3_EAX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=1, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=2, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0] [L743] 1 __unbuffered_cnt = __unbuffered_cnt + 1 [L745] 1 return 0; [L750] 2 x = 2 VAL [\result={0:0}, __unbuffered_cnt=1, __unbuffered_p3_EAX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=2, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=2, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0] [L753] 2 y = 1 VAL [\result={0:0}, __unbuffered_cnt=1, __unbuffered_p3_EAX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=2, y=1, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=2, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0] [L765] 3 y = 2 VAL [\result={0:0}, __unbuffered_cnt=1, __unbuffered_p3_EAX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=2, y=2, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=2, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0] [L768] 3 z = 1 VAL [\result={0:0}, __unbuffered_cnt=1, __unbuffered_p3_EAX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=2, y=2, z=1, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=2, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0] [L771] EXPR 3 z$w_buff0_used && z$r_buff0_thd3 ? z$w_buff0 : (z$w_buff1_used && z$r_buff1_thd3 ? z$w_buff1 : z) [L771] 3 z = z$w_buff0_used && z$r_buff0_thd3 ? z$w_buff0 : (z$w_buff1_used && z$r_buff1_thd3 ? z$w_buff1 : z) [L772] EXPR 3 z$w_buff0_used && z$r_buff0_thd3 ? (_Bool)0 : z$w_buff0_used [L772] 3 z$w_buff0_used = z$w_buff0_used && z$r_buff0_thd3 ? (_Bool)0 : z$w_buff0_used [L773] EXPR 3 z$w_buff0_used && z$r_buff0_thd3 || z$w_buff1_used && z$r_buff1_thd3 ? (_Bool)0 : z$w_buff1_used [L773] 3 z$w_buff1_used = z$w_buff0_used && z$r_buff0_thd3 || z$w_buff1_used && z$r_buff1_thd3 ? (_Bool)0 : z$w_buff1_used [L774] EXPR 3 z$w_buff0_used && z$r_buff0_thd3 ? (_Bool)0 : z$r_buff0_thd3 [L774] 3 z$r_buff0_thd3 = z$w_buff0_used && z$r_buff0_thd3 ? (_Bool)0 : z$r_buff0_thd3 [L775] EXPR 3 z$w_buff0_used && z$r_buff0_thd3 || z$w_buff1_used && z$r_buff1_thd3 ? (_Bool)0 : z$r_buff1_thd3 [L775] 3 z$r_buff1_thd3 = z$w_buff0_used && z$r_buff0_thd3 || z$w_buff1_used && z$r_buff1_thd3 ? (_Bool)0 : z$r_buff1_thd3 [L778] 3 __unbuffered_cnt = __unbuffered_cnt + 1 [L780] 3 return 0; [L758] 2 __unbuffered_cnt = __unbuffered_cnt + 1 [L760] 2 return 0; [L801] EXPR 4 z$w_buff0_used && z$r_buff0_thd4 ? z$w_buff0 : (z$w_buff1_used && z$r_buff1_thd4 ? z$w_buff1 : z) [L801] EXPR 4 z$w_buff1_used && z$r_buff1_thd4 ? z$w_buff1 : z [L801] EXPR 4 z$w_buff0_used && z$r_buff0_thd4 ? z$w_buff0 : (z$w_buff1_used && z$r_buff1_thd4 ? z$w_buff1 : z) [L801] 4 z = z$w_buff0_used && z$r_buff0_thd4 ? z$w_buff0 : (z$w_buff1_used && z$r_buff1_thd4 ? z$w_buff1 : z) [L802] EXPR 4 z$w_buff0_used && z$r_buff0_thd4 ? (_Bool)0 : z$w_buff0_used [L802] 4 z$w_buff0_used = z$w_buff0_used && z$r_buff0_thd4 ? (_Bool)0 : z$w_buff0_used [L803] EXPR 4 z$w_buff0_used && z$r_buff0_thd4 || z$w_buff1_used && z$r_buff1_thd4 ? (_Bool)0 : z$w_buff1_used [L803] 4 z$w_buff1_used = z$w_buff0_used && z$r_buff0_thd4 || z$w_buff1_used && z$r_buff1_thd4 ? (_Bool)0 : z$w_buff1_used [L804] EXPR 4 z$w_buff0_used && z$r_buff0_thd4 ? (_Bool)0 : z$r_buff0_thd4 [L804] 4 z$r_buff0_thd4 = z$w_buff0_used && z$r_buff0_thd4 ? (_Bool)0 : z$r_buff0_thd4 [L805] EXPR 4 z$w_buff0_used && z$r_buff0_thd4 || z$w_buff1_used && z$r_buff1_thd4 ? (_Bool)0 : z$r_buff1_thd4 [L805] 4 z$r_buff1_thd4 = z$w_buff0_used && z$r_buff0_thd4 || z$w_buff1_used && z$r_buff1_thd4 ? (_Bool)0 : z$r_buff1_thd4 [L808] 4 __unbuffered_cnt = __unbuffered_cnt + 1 [L810] 4 return 0; [L832] 0 main$tmp_guard0 = __unbuffered_cnt == 4 VAL [\result={0:0}, \result={0:0}, \result={0:0}, __unbuffered_cnt=4, __unbuffered_p3_EAX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=2, y=2, z=2, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=2, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0] [L843] 0 weak$$choice0 = __VERIFIER_nondet_bool() [L844] 0 weak$$choice2 = __VERIFIER_nondet_bool() [L845] 0 z$flush_delayed = weak$$choice2 [L846] 0 z$mem_tmp = z [L847] EXPR 0 !z$w_buff0_used || !z$r_buff0_thd0 && !z$w_buff1_used || !z$r_buff0_thd0 && !z$r_buff1_thd0 ? z : (z$w_buff0_used && z$r_buff0_thd0 ? z$w_buff0 : z$w_buff1) [L847] 0 z = !z$w_buff0_used || !z$r_buff0_thd0 && !z$w_buff1_used || !z$r_buff0_thd0 && !z$r_buff1_thd0 ? z : (z$w_buff0_used && z$r_buff0_thd0 ? z$w_buff0 : z$w_buff1) [L848] EXPR 0 weak$$choice2 ? z$w_buff0 : (!z$w_buff0_used || !z$r_buff0_thd0 && !z$w_buff1_used || !z$r_buff0_thd0 && !z$r_buff1_thd0 ? z$w_buff0 : (z$w_buff0_used && z$r_buff0_thd0 ? z$w_buff0 : z$w_buff0)) [L848] 0 z$w_buff0 = weak$$choice2 ? z$w_buff0 : (!z$w_buff0_used || !z$r_buff0_thd0 && !z$w_buff1_used || !z$r_buff0_thd0 && !z$r_buff1_thd0 ? z$w_buff0 : (z$w_buff0_used && z$r_buff0_thd0 ? z$w_buff0 : z$w_buff0)) [L849] EXPR 0 weak$$choice2 ? z$w_buff1 : (!z$w_buff0_used || !z$r_buff0_thd0 && !z$w_buff1_used || !z$r_buff0_thd0 && !z$r_buff1_thd0 ? z$w_buff1 : (z$w_buff0_used && z$r_buff0_thd0 ? z$w_buff1 : z$w_buff1)) [L849] 0 z$w_buff1 = weak$$choice2 ? z$w_buff1 : (!z$w_buff0_used || !z$r_buff0_thd0 && !z$w_buff1_used || !z$r_buff0_thd0 && !z$r_buff1_thd0 ? z$w_buff1 : (z$w_buff0_used && z$r_buff0_thd0 ? z$w_buff1 : z$w_buff1)) [L850] EXPR 0 weak$$choice2 ? z$w_buff0_used : (!z$w_buff0_used || !z$r_buff0_thd0 && !z$w_buff1_used || !z$r_buff0_thd0 && !z$r_buff1_thd0 ? z$w_buff0_used : (z$w_buff0_used && z$r_buff0_thd0 ? (_Bool)0 : z$w_buff0_used)) [L850] EXPR 0 !z$w_buff0_used || !z$r_buff0_thd0 && !z$w_buff1_used || !z$r_buff0_thd0 && !z$r_buff1_thd0 ? z$w_buff0_used : (z$w_buff0_used && z$r_buff0_thd0 ? (_Bool)0 : z$w_buff0_used) [L850] EXPR 0 weak$$choice2 ? z$w_buff0_used : (!z$w_buff0_used || !z$r_buff0_thd0 && !z$w_buff1_used || !z$r_buff0_thd0 && !z$r_buff1_thd0 ? z$w_buff0_used : (z$w_buff0_used && z$r_buff0_thd0 ? (_Bool)0 : z$w_buff0_used)) [L850] 0 z$w_buff0_used = weak$$choice2 ? z$w_buff0_used : (!z$w_buff0_used || !z$r_buff0_thd0 && !z$w_buff1_used || !z$r_buff0_thd0 && !z$r_buff1_thd0 ? z$w_buff0_used : (z$w_buff0_used && z$r_buff0_thd0 ? (_Bool)0 : z$w_buff0_used)) [L851] EXPR 0 weak$$choice2 ? z$w_buff1_used : (!z$w_buff0_used || !z$r_buff0_thd0 && !z$w_buff1_used || !z$r_buff0_thd0 && !z$r_buff1_thd0 ? z$w_buff1_used : (z$w_buff0_used && z$r_buff0_thd0 ? (_Bool)0 : (_Bool)0)) [L851] 0 z$w_buff1_used = weak$$choice2 ? z$w_buff1_used : (!z$w_buff0_used || !z$r_buff0_thd0 && !z$w_buff1_used || !z$r_buff0_thd0 && !z$r_buff1_thd0 ? z$w_buff1_used : (z$w_buff0_used && z$r_buff0_thd0 ? (_Bool)0 : (_Bool)0)) [L852] EXPR 0 weak$$choice2 ? z$r_buff0_thd0 : (!z$w_buff0_used || !z$r_buff0_thd0 && !z$w_buff1_used || !z$r_buff0_thd0 && !z$r_buff1_thd0 ? z$r_buff0_thd0 : (z$w_buff0_used && z$r_buff0_thd0 ? (_Bool)0 : z$r_buff0_thd0)) [L852] EXPR 0 !z$w_buff0_used || !z$r_buff0_thd0 && !z$w_buff1_used || !z$r_buff0_thd0 && !z$r_buff1_thd0 ? z$r_buff0_thd0 : (z$w_buff0_used && z$r_buff0_thd0 ? (_Bool)0 : z$r_buff0_thd0) [L852] EXPR 0 z$w_buff0_used && z$r_buff0_thd0 ? (_Bool)0 : z$r_buff0_thd0 [L852] EXPR 0 !z$w_buff0_used || !z$r_buff0_thd0 && !z$w_buff1_used || !z$r_buff0_thd0 && !z$r_buff1_thd0 ? z$r_buff0_thd0 : (z$w_buff0_used && z$r_buff0_thd0 ? (_Bool)0 : z$r_buff0_thd0) [L852] EXPR 0 weak$$choice2 ? z$r_buff0_thd0 : (!z$w_buff0_used || !z$r_buff0_thd0 && !z$w_buff1_used || !z$r_buff0_thd0 && !z$r_buff1_thd0 ? z$r_buff0_thd0 : (z$w_buff0_used && z$r_buff0_thd0 ? (_Bool)0 : z$r_buff0_thd0)) [L852] 0 z$r_buff0_thd0 = weak$$choice2 ? z$r_buff0_thd0 : (!z$w_buff0_used || !z$r_buff0_thd0 && !z$w_buff1_used || !z$r_buff0_thd0 && !z$r_buff1_thd0 ? z$r_buff0_thd0 : (z$w_buff0_used && z$r_buff0_thd0 ? (_Bool)0 : z$r_buff0_thd0)) [L853] EXPR 0 weak$$choice2 ? z$r_buff1_thd0 : (!z$w_buff0_used || !z$r_buff0_thd0 && !z$w_buff1_used || !z$r_buff0_thd0 && !z$r_buff1_thd0 ? z$r_buff1_thd0 : (z$w_buff0_used && z$r_buff0_thd0 ? (_Bool)0 : (_Bool)0)) [L853] EXPR 0 !z$w_buff0_used || !z$r_buff0_thd0 && !z$w_buff1_used || !z$r_buff0_thd0 && !z$r_buff1_thd0 ? z$r_buff1_thd0 : (z$w_buff0_used && z$r_buff0_thd0 ? (_Bool)0 : (_Bool)0) [L853] EXPR 0 z$w_buff0_used && z$r_buff0_thd0 ? (_Bool)0 : (_Bool)0 [L853] EXPR 0 !z$w_buff0_used || !z$r_buff0_thd0 && !z$w_buff1_used || !z$r_buff0_thd0 && !z$r_buff1_thd0 ? z$r_buff1_thd0 : (z$w_buff0_used && z$r_buff0_thd0 ? (_Bool)0 : (_Bool)0) [L853] EXPR 0 weak$$choice2 ? z$r_buff1_thd0 : (!z$w_buff0_used || !z$r_buff0_thd0 && !z$w_buff1_used || !z$r_buff0_thd0 && !z$r_buff1_thd0 ? z$r_buff1_thd0 : (z$w_buff0_used && z$r_buff0_thd0 ? (_Bool)0 : (_Bool)0)) [L853] 0 z$r_buff1_thd0 = weak$$choice2 ? z$r_buff1_thd0 : (!z$w_buff0_used || !z$r_buff0_thd0 && !z$w_buff1_used || !z$r_buff0_thd0 && !z$r_buff1_thd0 ? z$r_buff1_thd0 : (z$w_buff0_used && z$r_buff0_thd0 ? (_Bool)0 : (_Bool)0)) [L854] 0 main$tmp_guard1 = !(x == 2 && y == 2 && z == 2 && __unbuffered_p3_EAX == 0) [L855] EXPR 0 z$flush_delayed ? z$mem_tmp : z [L855] 0 z = z$flush_delayed ? z$mem_tmp : z [L856] 0 z$flush_delayed = (_Bool)0 [L7] COND TRUE 0 !expression [L7] 0 __VERIFIER_error() VAL [\result={0:0}, \result={0:0}, \result={0:0}, __unbuffered_cnt=4, __unbuffered_p3_EAX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, weak$$choice0=9, weak$$choice2=0, x=2, y=2, z=2, z$flush_delayed=0, z$mem_tmp=2, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=2, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 106 locations, 2 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 14.4s, OverallIterations: 18, TraceHistogramMax: 1, AutomataDifference: 1.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 9.1s, HoareTripleCheckerStatistics: 495 SDtfs, 700 SDslu, 718 SDs, 0 SdLazy, 316 SolverSat, 133 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 75 GetRequests, 7 SyntacticMatches, 1 SemanticMatches, 67 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2602occurred 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: 1.0s AutomataMinimizationTime, 17 MinimizatonAttempts, 458 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 1.3s InterpolantComputationTime, 290 NumberOfCodeBlocks, 290 NumberOfCodeBlocksAsserted, 18 NumberOfCheckSat, 248 ConstructedInterpolants, 0 QuantifiedInterpolants, 26646 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 17 InterpolantComputations, 17 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...