/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/mix055_power.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-b09bf87 [2020-10-16 12:04:41,090 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-16 12:04:41,094 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-16 12:04:41,132 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-16 12:04:41,133 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-16 12:04:41,141 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-16 12:04:41,144 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-16 12:04:41,148 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-16 12:04:41,151 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-16 12:04:41,154 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-16 12:04:41,155 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-16 12:04:41,156 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-16 12:04:41,156 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-16 12:04:41,159 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-16 12:04:41,161 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-16 12:04:41,165 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-16 12:04:41,166 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-16 12:04:41,167 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-16 12:04:41,168 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-16 12:04:41,170 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-16 12:04:41,171 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-16 12:04:41,172 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-16 12:04:41,173 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-16 12:04:41,174 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-16 12:04:41,176 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-16 12:04:41,176 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-16 12:04:41,177 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-16 12:04:41,177 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-16 12:04:41,178 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-16 12:04:41,179 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-16 12:04:41,179 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-16 12:04:41,180 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-16 12:04:41,180 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-16 12:04:41,181 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-16 12:04:41,182 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-16 12:04:41,182 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-16 12:04:41,183 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-16 12:04:41,183 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-16 12:04:41,183 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-16 12:04:41,184 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-16 12:04:41,185 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-16 12:04:41,186 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/mcr/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA.epf [2020-10-16 12:04:41,217 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-16 12:04:41,218 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-16 12:04:41,219 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-16 12:04:41,219 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-16 12:04:41,219 INFO L138 SettingsManager]: * Use SBE=true [2020-10-16 12:04:41,220 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-16 12:04:41,220 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-16 12:04:41,220 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-16 12:04:41,220 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-16 12:04:41,220 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-16 12:04:41,221 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-16 12:04:41,221 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-16 12:04:41,221 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-16 12:04:41,221 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-16 12:04:41,221 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-16 12:04:41,221 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-16 12:04:41,222 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-16 12:04:41,222 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-16 12:04:41,222 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-16 12:04:41,222 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-16 12:04:41,222 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-16 12:04:41,223 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-16 12:04:41,223 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-16 12:04:41,223 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_NestedInterpolation [2020-10-16 12:04:41,223 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-16 12:04:41,223 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-16 12:04:41,224 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-16 12:04:41,224 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=VARIABLE_BASED_MOVER_CHECK [2020-10-16 12:04:41,224 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-16 12:04:41,518 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-16 12:04:41,528 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-16 12:04:41,533 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-16 12:04:41,534 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-16 12:04:41,535 INFO L275 PluginConnector]: CDTParser initialized [2020-10-16 12:04:41,535 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/mix055_power.opt.i [2020-10-16 12:04:41,596 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/a29eb2f3a/5c2910c031124d1fb4063d87ce6aa09c/FLAG0eee5fb15 [2020-10-16 12:04:42,200 INFO L306 CDTParser]: Found 1 translation units. [2020-10-16 12:04:42,201 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/pthread-wmm/mix055_power.opt.i [2020-10-16 12:04:42,216 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/a29eb2f3a/5c2910c031124d1fb4063d87ce6aa09c/FLAG0eee5fb15 [2020-10-16 12:04:42,425 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/a29eb2f3a/5c2910c031124d1fb4063d87ce6aa09c [2020-10-16 12:04:42,433 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-16 12:04:42,434 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-10-16 12:04:42,435 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-16 12:04:42,435 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-16 12:04:42,439 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-16 12:04:42,440 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 12:04:42" (1/1) ... [2020-10-16 12:04:42,443 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@77674f1e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:04:42, skipping insertion in model container [2020-10-16 12:04:42,443 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 12:04:42" (1/1) ... [2020-10-16 12:04:42,451 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-16 12:04:42,519 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-16 12:04:43,095 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-16 12:04:43,110 INFO L203 MainTranslator]: Completed pre-run [2020-10-16 12:04:43,191 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-16 12:04:43,285 INFO L208 MainTranslator]: Completed translation [2020-10-16 12:04:43,286 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:04:43 WrapperNode [2020-10-16 12:04:43,287 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-16 12:04:43,288 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-16 12:04:43,288 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-16 12:04:43,288 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-16 12:04:43,297 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:04:43" (1/1) ... [2020-10-16 12:04:43,318 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:04:43" (1/1) ... [2020-10-16 12:04:43,353 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-16 12:04:43,353 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-16 12:04:43,353 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-16 12:04:43,353 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-16 12:04:43,362 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:04:43" (1/1) ... [2020-10-16 12:04:43,362 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:04:43" (1/1) ... [2020-10-16 12:04:43,367 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:04:43" (1/1) ... [2020-10-16 12:04:43,368 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:04:43" (1/1) ... [2020-10-16 12:04:43,378 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:04:43" (1/1) ... [2020-10-16 12:04:43,382 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:04:43" (1/1) ... [2020-10-16 12:04:43,386 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:04:43" (1/1) ... [2020-10-16 12:04:43,391 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-16 12:04:43,392 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-16 12:04:43,392 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-16 12:04:43,392 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-16 12:04:43,393 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:04:43" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-16 12:04:43,466 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-16 12:04:43,466 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-10-16 12:04:43,466 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-16 12:04:43,466 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-16 12:04:43,467 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-10-16 12:04:43,467 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-10-16 12:04:43,467 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-10-16 12:04:43,467 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-10-16 12:04:43,468 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-10-16 12:04:43,468 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-10-16 12:04:43,468 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2020-10-16 12:04:43,468 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2020-10-16 12:04:43,468 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-10-16 12:04:43,469 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-16 12:04:43,469 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-16 12:04:43,471 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-10-16 12:04:45,534 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-16 12:04:45,535 INFO L298 CfgBuilder]: Removed 10 assume(true) statements. [2020-10-16 12:04:45,538 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 12:04:45 BoogieIcfgContainer [2020-10-16 12:04:45,538 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-16 12:04:45,541 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-16 12:04:45,541 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-16 12:04:45,546 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-16 12:04:45,547 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.10 12:04:42" (1/3) ... [2020-10-16 12:04:45,548 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@9e3b6ad and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 12:04:45, skipping insertion in model container [2020-10-16 12:04:45,548 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:04:43" (2/3) ... [2020-10-16 12:04:45,548 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@9e3b6ad and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 12:04:45, skipping insertion in model container [2020-10-16 12:04:45,549 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 12:04:45" (3/3) ... [2020-10-16 12:04:45,552 INFO L111 eAbstractionObserver]: Analyzing ICFG mix055_power.opt.i [2020-10-16 12:04:45,565 WARN L153 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-10-16 12:04:45,565 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-16 12:04:45,573 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2020-10-16 12:04:45,574 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-10-16 12:04:45,608 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:04:45,609 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:04:45,609 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:04:45,609 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:04:45,610 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:04:45,610 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:04:45,610 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:04:45,611 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:04:45,611 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:04:45,611 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:04:45,611 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:04:45,611 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:04:45,612 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:04:45,612 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:04:45,612 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:04:45,612 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:04:45,612 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:04:45,613 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:04:45,613 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:04:45,613 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:04:45,613 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:04:45,613 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:04:45,614 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:04:45,614 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:04:45,614 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:04:45,615 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:04:45,615 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:04:45,615 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:04:45,615 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:04:45,616 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:04:45,616 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:04:45,616 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:04:45,616 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:04:45,617 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:04:45,617 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:04:45,617 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:04:45,617 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:04:45,617 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:04:45,618 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:04:45,618 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:04:45,618 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:04:45,618 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:04:45,622 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:04:45,623 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:04:45,623 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:04:45,623 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:04:45,623 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:04:45,623 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:04:45,624 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:04:45,624 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:04:45,624 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:04:45,624 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:04:45,628 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:04:45,628 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:04:45,628 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:04:45,628 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:04:45,629 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:04:45,629 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:04:45,629 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:04:45,629 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:04:45,629 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:04:45,630 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:04:45,630 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:04:45,630 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:04:45,632 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:04:45,632 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:04:45,632 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:04:45,633 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:04:45,634 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:04:45,634 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:04:45,634 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:04:45,635 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:04:45,637 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2020-10-16 12:04:45,652 INFO L253 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2020-10-16 12:04:45,674 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-16 12:04:45,675 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-16 12:04:45,675 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-16 12:04:45,675 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-16 12:04:45,675 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-16 12:04:45,675 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-16 12:04:45,675 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-16 12:04:45,676 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-16 12:04:45,692 INFO L137 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2020-10-16 12:04:45,693 INFO L144 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 119 places, 108 transitions, 236 flow [2020-10-16 12:04:45,697 INFO L111 LiptonReduction]: Starting Lipton reduction on Petri net that has 119 places, 108 transitions, 236 flow [2020-10-16 12:04:45,699 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 119 places, 108 transitions, 236 flow [2020-10-16 12:04:45,761 INFO L129 PetriNetUnfolder]: 2/104 cut-off events. [2020-10-16 12:04:45,761 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-10-16 12:04:45,767 INFO L80 FinitePrefix]: Finished finitePrefix Result has 117 conditions, 104 events. 2/104 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 74 event pairs, 0 based on Foata normal form. 0/100 useless extension candidates. Maximal degree in co-relation 73. Up to 2 conditions per place. [2020-10-16 12:04:45,771 INFO L117 LiptonReduction]: Number of co-enabled transitions 2352 [2020-10-16 12:04:47,952 WARN L193 SmtUtils]: Spent 1.79 s on a formula simplification. DAG size of input: 228 DAG size of output: 187 [2020-10-16 12:04:47,991 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[3, 2, 5, 4, 2, 1] term [2020-10-16 12:04:47,992 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-10-16 12:04:47,994 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[3, 2, 5, 4, 1] term [2020-10-16 12:04:47,995 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-10-16 12:04:48,852 WARN L193 SmtUtils]: Spent 834.00 ms on a formula simplification. DAG size of input: 144 DAG size of output: 124 [2020-10-16 12:04:49,408 WARN L193 SmtUtils]: Spent 253.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 60 [2020-10-16 12:04:49,542 WARN L193 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 55 [2020-10-16 12:04:50,471 WARN L193 SmtUtils]: Spent 500.00 ms on a formula simplification that was a NOOP. DAG size: 124 [2020-10-16 12:04:50,862 WARN L193 SmtUtils]: Spent 388.00 ms on a formula simplification that was a NOOP. DAG size: 124 [2020-10-16 12:04:51,409 WARN L193 SmtUtils]: Spent 544.00 ms on a formula simplification that was a NOOP. DAG size: 126 [2020-10-16 12:04:51,776 WARN L193 SmtUtils]: Spent 363.00 ms on a formula simplification that was a NOOP. DAG size: 126 [2020-10-16 12:04:52,693 WARN L193 SmtUtils]: Spent 631.00 ms on a formula simplification. DAG size of input: 127 DAG size of output: 109 [2020-10-16 12:04:52,995 WARN L193 SmtUtils]: Spent 299.00 ms on a formula simplification that was a NOOP. DAG size: 106 [2020-10-16 12:04:54,112 WARN L193 SmtUtils]: Spent 754.00 ms on a formula simplification. DAG size of input: 143 DAG size of output: 134 [2020-10-16 12:04:54,476 WARN L193 SmtUtils]: Spent 361.00 ms on a formula simplification that was a NOOP. DAG size: 131 [2020-10-16 12:04:54,743 WARN L193 SmtUtils]: Spent 241.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 93 [2020-10-16 12:04:54,899 WARN L193 SmtUtils]: Spent 153.00 ms on a formula simplification that was a NOOP. DAG size: 91 [2020-10-16 12:04:54,907 INFO L132 LiptonReduction]: Checked pairs total: 6503 [2020-10-16 12:04:54,908 INFO L134 LiptonReduction]: Total number of compositions: 89 [2020-10-16 12:04:54,917 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 44 places, 31 transitions, 82 flow [2020-10-16 12:04:55,116 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 2602 states. [2020-10-16 12:04:55,119 INFO L276 IsEmpty]: Start isEmpty. Operand 2602 states. [2020-10-16 12:04:55,133 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-10-16 12:04:55,133 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 12:04:55,135 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 12:04:55,136 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 12:04:55,143 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 12:04:55,144 INFO L82 PathProgramCache]: Analyzing trace with hash 1341205228, now seen corresponding path program 1 times [2020-10-16 12:04:55,156 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 12:04:55,156 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [831626510] [2020-10-16 12:04:55,157 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 12:04:55,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 12:04:55,445 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 12:04:55,446 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [831626510] [2020-10-16 12:04:55,447 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 12:04:55,448 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-10-16 12:04:55,448 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2071321472] [2020-10-16 12:04:55,453 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-16 12:04:55,453 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 12:04:55,469 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-16 12:04:55,470 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-16 12:04:55,472 INFO L87 Difference]: Start difference. First operand 2602 states. Second operand 3 states. [2020-10-16 12:04:55,605 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 12:04:55,606 INFO L93 Difference]: Finished difference Result 2202 states and 8424 transitions. [2020-10-16 12:04:55,607 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-16 12:04:55,609 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 9 [2020-10-16 12:04:55,609 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 12:04:55,646 INFO L225 Difference]: With dead ends: 2202 [2020-10-16 12:04:55,646 INFO L226 Difference]: Without dead ends: 1802 [2020-10-16 12:04:55,648 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-16 12:04:55,681 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1802 states. [2020-10-16 12:04:55,798 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1802 to 1802. [2020-10-16 12:04:55,800 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1802 states. [2020-10-16 12:04:55,813 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1802 states to 1802 states and 6784 transitions. [2020-10-16 12:04:55,815 INFO L78 Accepts]: Start accepts. Automaton has 1802 states and 6784 transitions. Word has length 9 [2020-10-16 12:04:55,816 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 12:04:55,816 INFO L481 AbstractCegarLoop]: Abstraction has 1802 states and 6784 transitions. [2020-10-16 12:04:55,816 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-16 12:04:55,816 INFO L276 IsEmpty]: Start isEmpty. Operand 1802 states and 6784 transitions. [2020-10-16 12:04:55,822 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-10-16 12:04:55,822 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 12:04:55,825 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 12:04:55,825 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-16 12:04:55,826 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 12:04:55,826 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 12:04:55,826 INFO L82 PathProgramCache]: Analyzing trace with hash 408129342, now seen corresponding path program 1 times [2020-10-16 12:04:55,826 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 12:04:55,827 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [395801981] [2020-10-16 12:04:55,827 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 12:04:55,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 12:04:55,935 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 12:04:55,936 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [395801981] [2020-10-16 12:04:55,936 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 12:04:55,936 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-10-16 12:04:55,936 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1234305734] [2020-10-16 12:04:55,938 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-16 12:04:55,938 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 12:04:55,938 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-16 12:04:55,939 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-16 12:04:55,939 INFO L87 Difference]: Start difference. First operand 1802 states and 6784 transitions. Second operand 3 states. [2020-10-16 12:04:55,990 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 12:04:55,990 INFO L93 Difference]: Finished difference Result 1792 states and 6736 transitions. [2020-10-16 12:04:55,991 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-16 12:04:55,992 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 11 [2020-10-16 12:04:55,992 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 12:04:56,008 INFO L225 Difference]: With dead ends: 1792 [2020-10-16 12:04:56,009 INFO L226 Difference]: Without dead ends: 1792 [2020-10-16 12:04:56,010 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-16 12:04:56,021 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1792 states. [2020-10-16 12:04:56,072 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1792 to 1792. [2020-10-16 12:04:56,072 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1792 states. [2020-10-16 12:04:56,085 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1792 states to 1792 states and 6736 transitions. [2020-10-16 12:04:56,086 INFO L78 Accepts]: Start accepts. Automaton has 1792 states and 6736 transitions. Word has length 11 [2020-10-16 12:04:56,086 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 12:04:56,086 INFO L481 AbstractCegarLoop]: Abstraction has 1792 states and 6736 transitions. [2020-10-16 12:04:56,086 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-16 12:04:56,086 INFO L276 IsEmpty]: Start isEmpty. Operand 1792 states and 6736 transitions. [2020-10-16 12:04:56,089 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-10-16 12:04:56,089 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 12:04:56,089 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 12:04:56,090 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-16 12:04:56,090 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 12:04:56,090 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 12:04:56,090 INFO L82 PathProgramCache]: Analyzing trace with hash -671107810, now seen corresponding path program 1 times [2020-10-16 12:04:56,091 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 12:04:56,091 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [748368430] [2020-10-16 12:04:56,091 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 12:04:56,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 12:04:56,203 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 12:04:56,204 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [748368430] [2020-10-16 12:04:56,204 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 12:04:56,204 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-10-16 12:04:56,205 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1207041909] [2020-10-16 12:04:56,205 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-16 12:04:56,205 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 12:04:56,206 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-16 12:04:56,206 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-16 12:04:56,206 INFO L87 Difference]: Start difference. First operand 1792 states and 6736 transitions. Second operand 3 states. [2020-10-16 12:04:56,266 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 12:04:56,266 INFO L93 Difference]: Finished difference Result 1764 states and 6612 transitions. [2020-10-16 12:04:56,267 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-16 12:04:56,267 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 12 [2020-10-16 12:04:56,268 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 12:04:56,285 INFO L225 Difference]: With dead ends: 1764 [2020-10-16 12:04:56,286 INFO L226 Difference]: Without dead ends: 1764 [2020-10-16 12:04:56,286 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 12:04:56,297 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1764 states. [2020-10-16 12:04:56,353 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1764 to 1764. [2020-10-16 12:04:56,353 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1764 states. [2020-10-16 12:04:56,367 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1764 states to 1764 states and 6612 transitions. [2020-10-16 12:04:56,367 INFO L78 Accepts]: Start accepts. Automaton has 1764 states and 6612 transitions. Word has length 12 [2020-10-16 12:04:56,368 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 12:04:56,368 INFO L481 AbstractCegarLoop]: Abstraction has 1764 states and 6612 transitions. [2020-10-16 12:04:56,368 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-16 12:04:56,368 INFO L276 IsEmpty]: Start isEmpty. Operand 1764 states and 6612 transitions. [2020-10-16 12:04:56,376 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-10-16 12:04:56,376 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 12:04:56,377 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 12:04:56,382 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-16 12:04:56,382 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 12:04:56,382 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 12:04:56,383 INFO L82 PathProgramCache]: Analyzing trace with hash -234878197, now seen corresponding path program 1 times [2020-10-16 12:04:56,383 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 12:04:56,389 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [67935535] [2020-10-16 12:04:56,390 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 12:04:56,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 12:04:56,469 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 12:04:56,470 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [67935535] [2020-10-16 12:04:56,470 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 12:04:56,470 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-10-16 12:04:56,471 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [668172673] [2020-10-16 12:04:56,471 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-16 12:04:56,471 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 12:04:56,472 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-16 12:04:56,472 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-16 12:04:56,472 INFO L87 Difference]: Start difference. First operand 1764 states and 6612 transitions. Second operand 3 states. [2020-10-16 12:04:56,498 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 12:04:56,498 INFO L93 Difference]: Finished difference Result 1724 states and 6430 transitions. [2020-10-16 12:04:56,499 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-16 12:04:56,499 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 12 [2020-10-16 12:04:56,499 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 12:04:56,515 INFO L225 Difference]: With dead ends: 1724 [2020-10-16 12:04:56,516 INFO L226 Difference]: Without dead ends: 1724 [2020-10-16 12:04:56,516 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-16 12:04:56,528 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1724 states. [2020-10-16 12:04:56,636 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1724 to 1724. [2020-10-16 12:04:56,636 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1724 states. [2020-10-16 12:04:56,651 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1724 states to 1724 states and 6430 transitions. [2020-10-16 12:04:56,651 INFO L78 Accepts]: Start accepts. Automaton has 1724 states and 6430 transitions. Word has length 12 [2020-10-16 12:04:56,652 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 12:04:56,652 INFO L481 AbstractCegarLoop]: Abstraction has 1724 states and 6430 transitions. [2020-10-16 12:04:56,653 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-16 12:04:56,653 INFO L276 IsEmpty]: Start isEmpty. Operand 1724 states and 6430 transitions. [2020-10-16 12:04:56,654 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-10-16 12:04:56,655 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 12:04:56,655 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 12:04:56,655 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-16 12:04:56,655 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 12:04:56,656 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 12:04:56,656 INFO L82 PathProgramCache]: Analyzing trace with hash 668508459, now seen corresponding path program 1 times [2020-10-16 12:04:56,656 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 12:04:56,656 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1975557486] [2020-10-16 12:04:56,656 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 12:04:56,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 12:04:56,789 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 12:04:56,789 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1975557486] [2020-10-16 12:04:56,790 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 12:04:56,790 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-16 12:04:56,790 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1330408264] [2020-10-16 12:04:56,791 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-16 12:04:56,791 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 12:04:56,791 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-16 12:04:56,791 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-16 12:04:56,792 INFO L87 Difference]: Start difference. First operand 1724 states and 6430 transitions. Second operand 4 states. [2020-10-16 12:04:56,862 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 12:04:56,863 INFO L93 Difference]: Finished difference Result 1668 states and 6182 transitions. [2020-10-16 12:04:56,864 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-16 12:04:56,864 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 13 [2020-10-16 12:04:56,864 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 12:04:56,880 INFO L225 Difference]: With dead ends: 1668 [2020-10-16 12:04:56,880 INFO L226 Difference]: Without dead ends: 1668 [2020-10-16 12:04:56,881 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-16 12:04:56,890 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1668 states. [2020-10-16 12:04:56,938 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1668 to 1668. [2020-10-16 12:04:56,939 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1668 states. [2020-10-16 12:04:56,951 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1668 states to 1668 states and 6182 transitions. [2020-10-16 12:04:56,952 INFO L78 Accepts]: Start accepts. Automaton has 1668 states and 6182 transitions. Word has length 13 [2020-10-16 12:04:56,952 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 12:04:56,952 INFO L481 AbstractCegarLoop]: Abstraction has 1668 states and 6182 transitions. [2020-10-16 12:04:56,952 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-16 12:04:56,952 INFO L276 IsEmpty]: Start isEmpty. Operand 1668 states and 6182 transitions. [2020-10-16 12:04:56,955 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-10-16 12:04:56,955 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 12:04:56,955 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 12:04:56,955 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-16 12:04:56,956 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 12:04:56,956 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 12:04:56,956 INFO L82 PathProgramCache]: Analyzing trace with hash -689526251, now seen corresponding path program 1 times [2020-10-16 12:04:56,956 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 12:04:56,957 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [296922502] [2020-10-16 12:04:56,957 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 12:04:56,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 12:04:57,008 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 12:04:57,009 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [296922502] [2020-10-16 12:04:57,009 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 12:04:57,009 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-16 12:04:57,009 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1198508474] [2020-10-16 12:04:57,010 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-16 12:04:57,010 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 12:04:57,010 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-16 12:04:57,010 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-10-16 12:04:57,011 INFO L87 Difference]: Start difference. First operand 1668 states and 6182 transitions. Second operand 4 states. [2020-10-16 12:04:57,071 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 12:04:57,072 INFO L93 Difference]: Finished difference Result 1684 states and 6238 transitions. [2020-10-16 12:04:57,073 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-16 12:04:57,073 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 14 [2020-10-16 12:04:57,073 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 12:04:57,089 INFO L225 Difference]: With dead ends: 1684 [2020-10-16 12:04:57,090 INFO L226 Difference]: Without dead ends: 1684 [2020-10-16 12:04:57,090 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-10-16 12:04:57,099 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1684 states. [2020-10-16 12:04:57,143 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1684 to 1684. [2020-10-16 12:04:57,143 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1684 states. [2020-10-16 12:04:57,154 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1684 states to 1684 states and 6238 transitions. [2020-10-16 12:04:57,154 INFO L78 Accepts]: Start accepts. Automaton has 1684 states and 6238 transitions. Word has length 14 [2020-10-16 12:04:57,154 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 12:04:57,154 INFO L481 AbstractCegarLoop]: Abstraction has 1684 states and 6238 transitions. [2020-10-16 12:04:57,155 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-16 12:04:57,155 INFO L276 IsEmpty]: Start isEmpty. Operand 1684 states and 6238 transitions. [2020-10-16 12:04:57,157 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-10-16 12:04:57,157 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 12:04:57,157 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 12:04:57,158 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-16 12:04:57,158 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 12:04:57,158 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 12:04:57,158 INFO L82 PathProgramCache]: Analyzing trace with hash -690440441, now seen corresponding path program 2 times [2020-10-16 12:04:57,158 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 12:04:57,159 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [830624704] [2020-10-16 12:04:57,159 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 12:04:57,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 12:04:57,233 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 12:04:57,234 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [830624704] [2020-10-16 12:04:57,234 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 12:04:57,234 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-16 12:04:57,234 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1678009783] [2020-10-16 12:04:57,235 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-16 12:04:57,235 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 12:04:57,235 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-16 12:04:57,235 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-16 12:04:57,235 INFO L87 Difference]: Start difference. First operand 1684 states and 6238 transitions. Second operand 5 states. [2020-10-16 12:04:57,325 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 12:04:57,326 INFO L93 Difference]: Finished difference Result 1642 states and 6066 transitions. [2020-10-16 12:04:57,327 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-16 12:04:57,327 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 14 [2020-10-16 12:04:57,328 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 12:04:57,343 INFO L225 Difference]: With dead ends: 1642 [2020-10-16 12:04:57,344 INFO L226 Difference]: Without dead ends: 1642 [2020-10-16 12:04:57,344 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2020-10-16 12:04:57,355 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1642 states. [2020-10-16 12:04:57,400 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1642 to 1626. [2020-10-16 12:04:57,401 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1626 states. [2020-10-16 12:04:57,412 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1626 states to 1626 states and 6010 transitions. [2020-10-16 12:04:57,412 INFO L78 Accepts]: Start accepts. Automaton has 1626 states and 6010 transitions. Word has length 14 [2020-10-16 12:04:57,412 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 12:04:57,412 INFO L481 AbstractCegarLoop]: Abstraction has 1626 states and 6010 transitions. [2020-10-16 12:04:57,413 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-16 12:04:57,413 INFO L276 IsEmpty]: Start isEmpty. Operand 1626 states and 6010 transitions. [2020-10-16 12:04:57,416 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-10-16 12:04:57,416 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 12:04:57,416 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 12:04:57,416 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-16 12:04:57,416 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 12:04:57,417 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 12:04:57,417 INFO L82 PathProgramCache]: Analyzing trace with hash -1890097590, now seen corresponding path program 1 times [2020-10-16 12:04:57,417 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 12:04:57,417 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [13394902] [2020-10-16 12:04:57,417 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 12:04:57,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 12:04:57,555 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 12:04:57,555 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [13394902] [2020-10-16 12:04:57,556 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 12:04:57,556 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-16 12:04:57,556 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [134871134] [2020-10-16 12:04:57,556 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-16 12:04:57,557 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 12:04:57,557 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-16 12:04:57,558 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-16 12:04:57,558 INFO L87 Difference]: Start difference. First operand 1626 states and 6010 transitions. Second operand 4 states. [2020-10-16 12:04:57,615 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 12:04:57,616 INFO L93 Difference]: Finished difference Result 1682 states and 5674 transitions. [2020-10-16 12:04:57,616 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-16 12:04:57,617 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 15 [2020-10-16 12:04:57,617 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 12:04:57,640 INFO L225 Difference]: With dead ends: 1682 [2020-10-16 12:04:57,640 INFO L226 Difference]: Without dead ends: 1282 [2020-10-16 12:04:57,641 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-16 12:04:57,650 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1282 states. [2020-10-16 12:04:57,680 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1282 to 1282. [2020-10-16 12:04:57,680 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1282 states. [2020-10-16 12:04:57,686 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1282 states to 1282 states and 4290 transitions. [2020-10-16 12:04:57,686 INFO L78 Accepts]: Start accepts. Automaton has 1282 states and 4290 transitions. Word has length 15 [2020-10-16 12:04:57,686 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 12:04:57,687 INFO L481 AbstractCegarLoop]: Abstraction has 1282 states and 4290 transitions. [2020-10-16 12:04:57,687 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-16 12:04:57,687 INFO L276 IsEmpty]: Start isEmpty. Operand 1282 states and 4290 transitions. [2020-10-16 12:04:57,692 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-10-16 12:04:57,692 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 12:04:57,693 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 12:04:57,693 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-16 12:04:57,693 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 12:04:57,693 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 12:04:57,694 INFO L82 PathProgramCache]: Analyzing trace with hash 1535573628, now seen corresponding path program 1 times [2020-10-16 12:04:57,694 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 12:04:57,695 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [418305422] [2020-10-16 12:04:57,695 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 12:04:57,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 12:04:57,774 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 12:04:57,774 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [418305422] [2020-10-16 12:04:57,775 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 12:04:57,775 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-16 12:04:57,775 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [421286385] [2020-10-16 12:04:57,776 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-16 12:04:57,776 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 12:04:57,776 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-16 12:04:57,776 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-16 12:04:57,777 INFO L87 Difference]: Start difference. First operand 1282 states and 4290 transitions. Second operand 5 states. [2020-10-16 12:04:57,845 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 12:04:57,845 INFO L93 Difference]: Finished difference Result 1105 states and 3390 transitions. [2020-10-16 12:04:57,846 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-16 12:04:57,846 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 16 [2020-10-16 12:04:57,847 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 12:04:57,850 INFO L225 Difference]: With dead ends: 1105 [2020-10-16 12:04:57,851 INFO L226 Difference]: Without dead ends: 849 [2020-10-16 12:04:57,851 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-10-16 12:04:57,855 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 849 states. [2020-10-16 12:04:57,874 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 849 to 849. [2020-10-16 12:04:57,874 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 849 states. [2020-10-16 12:04:57,878 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 849 states to 849 states and 2558 transitions. [2020-10-16 12:04:57,879 INFO L78 Accepts]: Start accepts. Automaton has 849 states and 2558 transitions. Word has length 16 [2020-10-16 12:04:57,879 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 12:04:57,879 INFO L481 AbstractCegarLoop]: Abstraction has 849 states and 2558 transitions. [2020-10-16 12:04:57,879 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-16 12:04:57,879 INFO L276 IsEmpty]: Start isEmpty. Operand 849 states and 2558 transitions. [2020-10-16 12:04:57,881 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-10-16 12:04:57,882 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 12:04:57,882 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 12:04:57,882 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-16 12:04:57,882 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 12:04:57,882 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 12:04:57,883 INFO L82 PathProgramCache]: Analyzing trace with hash 1327185945, now seen corresponding path program 1 times [2020-10-16 12:04:57,883 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 12:04:57,883 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [683886164] [2020-10-16 12:04:57,883 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 12:04:57,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 12:04:57,983 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 12:04:57,984 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [683886164] [2020-10-16 12:04:57,984 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 12:04:57,984 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-16 12:04:57,984 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [456151660] [2020-10-16 12:04:57,985 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-16 12:04:57,985 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 12:04:57,985 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-16 12:04:57,986 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-10-16 12:04:57,986 INFO L87 Difference]: Start difference. First operand 849 states and 2558 transitions. Second operand 4 states. [2020-10-16 12:04:58,015 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 12:04:58,015 INFO L93 Difference]: Finished difference Result 1190 states and 3477 transitions. [2020-10-16 12:04:58,017 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-16 12:04:58,017 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 18 [2020-10-16 12:04:58,017 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 12:04:58,021 INFO L225 Difference]: With dead ends: 1190 [2020-10-16 12:04:58,021 INFO L226 Difference]: Without dead ends: 860 [2020-10-16 12:04:58,021 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-10-16 12:04:58,026 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 860 states. [2020-10-16 12:04:58,042 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 860 to 840. [2020-10-16 12:04:58,043 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 840 states. [2020-10-16 12:04:58,048 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 840 states to 840 states and 2399 transitions. [2020-10-16 12:04:58,049 INFO L78 Accepts]: Start accepts. Automaton has 840 states and 2399 transitions. Word has length 18 [2020-10-16 12:04:58,049 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 12:04:58,049 INFO L481 AbstractCegarLoop]: Abstraction has 840 states and 2399 transitions. [2020-10-16 12:04:58,049 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-16 12:04:58,050 INFO L276 IsEmpty]: Start isEmpty. Operand 840 states and 2399 transitions. [2020-10-16 12:04:58,052 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-10-16 12:04:58,052 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 12:04:58,052 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 12:04:58,052 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-16 12:04:58,053 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 12:04:58,053 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 12:04:58,053 INFO L82 PathProgramCache]: Analyzing trace with hash 738469067, now seen corresponding path program 1 times [2020-10-16 12:04:58,053 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 12:04:58,054 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1198566960] [2020-10-16 12:04:58,054 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 12:04:58,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 12:04:58,148 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 12:04:58,148 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1198566960] [2020-10-16 12:04:58,148 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 12:04:58,149 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-16 12:04:58,149 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1357013933] [2020-10-16 12:04:58,149 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-16 12:04:58,149 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 12:04:58,150 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-16 12:04:58,150 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-10-16 12:04:58,150 INFO L87 Difference]: Start difference. First operand 840 states and 2399 transitions. Second operand 6 states. [2020-10-16 12:04:58,227 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 12:04:58,227 INFO L93 Difference]: Finished difference Result 733 states and 2056 transitions. [2020-10-16 12:04:58,228 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-16 12:04:58,228 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 18 [2020-10-16 12:04:58,229 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 12:04:58,231 INFO L225 Difference]: With dead ends: 733 [2020-10-16 12:04:58,231 INFO L226 Difference]: Without dead ends: 645 [2020-10-16 12:04:58,232 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2020-10-16 12:04:58,235 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 645 states. [2020-10-16 12:04:58,250 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 645 to 645. [2020-10-16 12:04:58,250 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 645 states. [2020-10-16 12:04:58,253 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 645 states to 645 states and 1834 transitions. [2020-10-16 12:04:58,253 INFO L78 Accepts]: Start accepts. Automaton has 645 states and 1834 transitions. Word has length 18 [2020-10-16 12:04:58,253 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 12:04:58,254 INFO L481 AbstractCegarLoop]: Abstraction has 645 states and 1834 transitions. [2020-10-16 12:04:58,254 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-16 12:04:58,254 INFO L276 IsEmpty]: Start isEmpty. Operand 645 states and 1834 transitions. [2020-10-16 12:04:58,256 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-10-16 12:04:58,256 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 12:04:58,257 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] [2020-10-16 12:04:58,257 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-16 12:04:58,257 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 12:04:58,257 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 12:04:58,257 INFO L82 PathProgramCache]: Analyzing trace with hash -1256513490, now seen corresponding path program 1 times [2020-10-16 12:04:58,258 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 12:04:58,258 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [191582987] [2020-10-16 12:04:58,258 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 12:04:58,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 12:04:58,330 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 12:04:58,331 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [191582987] [2020-10-16 12:04:58,331 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 12:04:58,331 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-16 12:04:58,331 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1029340594] [2020-10-16 12:04:58,332 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-16 12:04:58,332 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 12:04:58,332 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-16 12:04:58,332 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-10-16 12:04:58,333 INFO L87 Difference]: Start difference. First operand 645 states and 1834 transitions. Second operand 6 states. [2020-10-16 12:04:58,427 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 12:04:58,428 INFO L93 Difference]: Finished difference Result 915 states and 2538 transitions. [2020-10-16 12:04:58,428 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-16 12:04:58,429 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 21 [2020-10-16 12:04:58,429 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 12:04:58,431 INFO L225 Difference]: With dead ends: 915 [2020-10-16 12:04:58,431 INFO L226 Difference]: Without dead ends: 645 [2020-10-16 12:04:58,431 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-16 12:04:58,434 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 645 states. [2020-10-16 12:04:58,446 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 645 to 641. [2020-10-16 12:04:58,447 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 641 states. [2020-10-16 12:04:58,449 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 641 states to 641 states and 1739 transitions. [2020-10-16 12:04:58,449 INFO L78 Accepts]: Start accepts. Automaton has 641 states and 1739 transitions. Word has length 21 [2020-10-16 12:04:58,449 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 12:04:58,450 INFO L481 AbstractCegarLoop]: Abstraction has 641 states and 1739 transitions. [2020-10-16 12:04:58,450 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-16 12:04:58,450 INFO L276 IsEmpty]: Start isEmpty. Operand 641 states and 1739 transitions. [2020-10-16 12:04:58,452 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-10-16 12:04:58,452 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 12:04:58,452 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] [2020-10-16 12:04:58,452 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-16 12:04:58,452 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 12:04:58,453 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 12:04:58,453 INFO L82 PathProgramCache]: Analyzing trace with hash -1670045084, now seen corresponding path program 2 times [2020-10-16 12:04:58,453 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 12:04:58,453 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1687480660] [2020-10-16 12:04:58,454 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 12:04:58,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 12:04:58,533 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 12:04:58,533 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1687480660] [2020-10-16 12:04:58,534 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 12:04:58,534 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-16 12:04:58,534 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [548824459] [2020-10-16 12:04:58,534 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-16 12:04:58,535 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 12:04:58,535 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-16 12:04:58,535 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-10-16 12:04:58,535 INFO L87 Difference]: Start difference. First operand 641 states and 1739 transitions. Second operand 7 states. [2020-10-16 12:04:58,615 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 12:04:58,615 INFO L93 Difference]: Finished difference Result 615 states and 1686 transitions. [2020-10-16 12:04:58,616 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-16 12:04:58,616 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 21 [2020-10-16 12:04:58,616 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 12:04:58,617 INFO L225 Difference]: With dead ends: 615 [2020-10-16 12:04:58,617 INFO L226 Difference]: Without dead ends: 224 [2020-10-16 12:04:58,618 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2020-10-16 12:04:58,619 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 224 states. [2020-10-16 12:04:58,624 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 224 to 224. [2020-10-16 12:04:58,624 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 224 states. [2020-10-16 12:04:58,625 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 224 states to 224 states and 586 transitions. [2020-10-16 12:04:58,626 INFO L78 Accepts]: Start accepts. Automaton has 224 states and 586 transitions. Word has length 21 [2020-10-16 12:04:58,626 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 12:04:58,626 INFO L481 AbstractCegarLoop]: Abstraction has 224 states and 586 transitions. [2020-10-16 12:04:58,626 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-16 12:04:58,626 INFO L276 IsEmpty]: Start isEmpty. Operand 224 states and 586 transitions. [2020-10-16 12:04:58,627 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-10-16 12:04:58,628 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 12:04:58,628 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 12:04:58,628 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-16 12:04:58,628 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 12:04:58,629 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 12:04:58,629 INFO L82 PathProgramCache]: Analyzing trace with hash -1669800279, now seen corresponding path program 1 times [2020-10-16 12:04:58,629 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 12:04:58,630 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [169855822] [2020-10-16 12:04:58,630 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 12:04:58,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 12:04:58,787 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 12:04:58,788 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [169855822] [2020-10-16 12:04:58,788 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 12:04:58,788 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-16 12:04:58,788 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [56802610] [2020-10-16 12:04:58,789 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-16 12:04:58,789 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 12:04:58,789 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-16 12:04:58,789 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2020-10-16 12:04:58,789 INFO L87 Difference]: Start difference. First operand 224 states and 586 transitions. Second operand 8 states. [2020-10-16 12:04:58,869 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 12:04:58,869 INFO L93 Difference]: Finished difference Result 286 states and 730 transitions. [2020-10-16 12:04:58,870 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-16 12:04:58,870 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 25 [2020-10-16 12:04:58,870 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 12:04:58,871 INFO L225 Difference]: With dead ends: 286 [2020-10-16 12:04:58,871 INFO L226 Difference]: Without dead ends: 184 [2020-10-16 12:04:58,872 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2020-10-16 12:04:58,873 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 184 states. [2020-10-16 12:04:58,876 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 184 to 184. [2020-10-16 12:04:58,876 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 184 states. [2020-10-16 12:04:58,877 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 184 states to 184 states and 458 transitions. [2020-10-16 12:04:58,877 INFO L78 Accepts]: Start accepts. Automaton has 184 states and 458 transitions. Word has length 25 [2020-10-16 12:04:58,877 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 12:04:58,877 INFO L481 AbstractCegarLoop]: Abstraction has 184 states and 458 transitions. [2020-10-16 12:04:58,877 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-16 12:04:58,878 INFO L276 IsEmpty]: Start isEmpty. Operand 184 states and 458 transitions. [2020-10-16 12:04:58,878 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-10-16 12:04:58,878 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 12:04:58,879 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 12:04:58,879 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-10-16 12:04:58,879 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 12:04:58,879 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 12:04:58,879 INFO L82 PathProgramCache]: Analyzing trace with hash 2056310337, now seen corresponding path program 2 times [2020-10-16 12:04:58,880 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 12:04:58,880 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [992624537] [2020-10-16 12:04:58,880 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 12:04:58,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-16 12:04:58,916 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-16 12:04:58,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-16 12:04:58,950 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-16 12:04:58,989 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-16 12:04:58,989 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-16 12:04:58,990 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-10-16 12:04:58,991 WARN L264 etLargeBlockEncoding]: Failed to translate choice composition: Branch encoders not available. [2020-10-16 12:04:59,012 WARN L124 codingBacktranslator]: Skipped backtranslation of ATE [956] [956] L2-->L843: Formula: (let ((.cse6 (= (mod ~z$r_buff1_thd0~0_In564627139 256) 0)) (.cse7 (= (mod ~z$w_buff1_used~0_In564627139 256) 0)) (.cse9 (= (mod ~z$w_buff0_used~0_In564627139 256) 0)) (.cse8 (= (mod ~z$r_buff0_thd0~0_In564627139 256) 0))) (let ((.cse0 (not .cse8)) (.cse1 (not .cse9)) (.cse2 (or .cse8 .cse9)) (.cse3 (not .cse7)) (.cse4 (not .cse6)) (.cse5 (or .cse6 .cse7))) (and (or (and .cse0 .cse1 (= ~z$w_buff0_used~0_Out564627139 0)) (and (= ~z$w_buff0_used~0_Out564627139 ~z$w_buff0_used~0_In564627139) .cse2)) (or (and (= ~z~0_Out564627139 ~z$w_buff0~0_In564627139) .cse0 .cse1) (and .cse2 (or (and .cse3 (= ~z$w_buff1~0_In564627139 ~z~0_Out564627139) .cse4) (and .cse5 (= ~z~0_In564627139 ~z~0_Out564627139))))) (not (= ULTIMATE.start_assume_abort_if_not_~cond_Out564627139 0)) (or (and .cse3 (= ~z$w_buff1_used~0_Out564627139 0) .cse4) (and .cse5 (= ~z$w_buff1_used~0_Out564627139 ~z$w_buff1_used~0_In564627139))) (= ~z$r_buff0_thd0~0_Out564627139 ~z$r_buff0_thd0~0_In564627139) (= ~z$r_buff1_thd0~0_Out564627139 ~z$r_buff1_thd0~0_In564627139) (= |ULTIMATE.start_assume_abort_if_not_#in~cond_In564627139| ULTIMATE.start_assume_abort_if_not_~cond_Out564627139)))) InVars {ULTIMATE.start_assume_abort_if_not_#in~cond=|ULTIMATE.start_assume_abort_if_not_#in~cond_In564627139|, ~z$r_buff0_thd0~0=~z$r_buff0_thd0~0_In564627139, ~z$w_buff0_used~0=~z$w_buff0_used~0_In564627139, ~z$w_buff0~0=~z$w_buff0~0_In564627139, ~z$r_buff1_thd0~0=~z$r_buff1_thd0~0_In564627139, ~z$w_buff1_used~0=~z$w_buff1_used~0_In564627139, ~z$w_buff1~0=~z$w_buff1~0_In564627139, ~z~0=~z~0_In564627139} OutVars{~z$w_buff0_used~0=~z$w_buff0_used~0_Out564627139, ULTIMATE.start_main_#t~ite18=|ULTIMATE.start_main_#t~ite18_Out564627139|, ~z$w_buff0~0=~z$w_buff0~0_In564627139, ULTIMATE.start_main_#t~ite19=|ULTIMATE.start_main_#t~ite19_Out564627139|, ~z$w_buff1_used~0=~z$w_buff1_used~0_Out564627139, ~z$w_buff1~0=~z$w_buff1~0_In564627139, ULTIMATE.start_main_#t~ite20=|ULTIMATE.start_main_#t~ite20_Out564627139|, ULTIMATE.start_main_#t~ite21=|ULTIMATE.start_main_#t~ite21_Out564627139|, ULTIMATE.start_main_#t~ite22=|ULTIMATE.start_main_#t~ite22_Out564627139|, ULTIMATE.start_main_#t~ite23=|ULTIMATE.start_main_#t~ite23_Out564627139|, ULTIMATE.start_assume_abort_if_not_#in~cond=|ULTIMATE.start_assume_abort_if_not_#in~cond_In564627139|, ~z$r_buff0_thd0~0=~z$r_buff0_thd0~0_Out564627139, ULTIMATE.start_assume_abort_if_not_~cond=ULTIMATE.start_assume_abort_if_not_~cond_Out564627139, ~z$r_buff1_thd0~0=~z$r_buff1_thd0~0_Out564627139, ~z~0=~z~0_Out564627139} AuxVars[] AssignedVars[~z$r_buff0_thd0~0, ULTIMATE.start_assume_abort_if_not_~cond, ~z$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 12:04:59,019 WARN L219 RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented. [2020-10-16 12:04:59,019 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-16 12:04:59,021 WARN L219 RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented. [2020-10-16 12:04:59,022 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-16 12:04:59,022 WARN L219 RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented. [2020-10-16 12:04:59,022 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-16 12:04:59,022 WARN L219 RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented. [2020-10-16 12:04:59,022 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-16 12:04:59,023 WARN L219 RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented. [2020-10-16 12:04:59,023 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-16 12:04:59,023 WARN L219 RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented. [2020-10-16 12:04:59,023 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-16 12:04:59,024 WARN L219 RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented. [2020-10-16 12:04:59,024 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-16 12:04:59,024 WARN L219 RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented. [2020-10-16 12:04:59,024 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-16 12:04:59,024 WARN L219 RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented. [2020-10-16 12:04:59,025 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-16 12:04:59,025 WARN L219 RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented. [2020-10-16 12:04:59,025 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-16 12:04:59,025 WARN L219 RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented. [2020-10-16 12:04:59,025 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-16 12:04:59,025 WARN L219 RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented. [2020-10-16 12:04:59,026 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-16 12:04:59,026 WARN L219 RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented. [2020-10-16 12:04:59,026 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-16 12:04:59,027 WARN L219 RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented. [2020-10-16 12:04:59,027 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-16 12:04:59,027 WARN L219 RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented. [2020-10-16 12:04:59,027 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-16 12:04:59,027 WARN L219 RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented. [2020-10-16 12:04:59,027 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-16 12:04:59,028 WARN L219 RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented. [2020-10-16 12:04:59,028 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-16 12:04:59,028 WARN L219 RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented. [2020-10-16 12:04:59,028 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-16 12:04:59,028 WARN L219 RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented. [2020-10-16 12:04:59,029 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-16 12:04:59,029 WARN L219 RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented. [2020-10-16 12:04:59,029 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-16 12:04:59,029 WARN L219 RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented. [2020-10-16 12:04:59,029 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-16 12:04:59,030 WARN L219 RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented. [2020-10-16 12:04:59,030 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-16 12:04:59,030 WARN L219 RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented. [2020-10-16 12:04:59,030 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-16 12:04:59,030 WARN L219 RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented. [2020-10-16 12:04:59,030 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-16 12:04:59,101 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.10 12:04:59 BasicIcfg [2020-10-16 12:04:59,101 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-16 12:04:59,103 INFO L168 Benchmark]: Toolchain (without parser) took 16669.22 ms. Allocated memory was 139.5 MB in the beginning and 410.0 MB in the end (delta: 270.5 MB). Free memory was 100.7 MB in the beginning and 148.8 MB in the end (delta: -48.1 MB). Peak memory consumption was 222.4 MB. Max. memory is 7.1 GB. [2020-10-16 12:04:59,104 INFO L168 Benchmark]: CDTParser took 0.18 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: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-10-16 12:04:59,105 INFO L168 Benchmark]: CACSL2BoogieTranslator took 852.16 ms. Allocated memory was 139.5 MB in the beginning and 204.5 MB in the end (delta: 65.0 MB). Free memory was 100.2 MB in the beginning and 155.3 MB in the end (delta: -55.1 MB). Peak memory consumption was 23.2 MB. Max. memory is 7.1 GB. [2020-10-16 12:04:59,105 INFO L168 Benchmark]: Boogie Procedure Inliner took 65.11 ms. Allocated memory is still 204.5 MB. Free memory was 155.3 MB in the beginning and 152.6 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 7.1 GB. [2020-10-16 12:04:59,106 INFO L168 Benchmark]: Boogie Preprocessor took 38.38 ms. Allocated memory is still 204.5 MB. Free memory was 152.6 MB in the beginning and 149.8 MB in the end (delta: 2.8 MB). Peak memory consumption was 2.8 MB. Max. memory is 7.1 GB. [2020-10-16 12:04:59,107 INFO L168 Benchmark]: RCFGBuilder took 2146.81 ms. Allocated memory was 204.5 MB in the beginning and 250.1 MB in the end (delta: 45.6 MB). Free memory was 149.8 MB in the beginning and 193.0 MB in the end (delta: -43.2 MB). Peak memory consumption was 102.0 MB. Max. memory is 7.1 GB. [2020-10-16 12:04:59,108 INFO L168 Benchmark]: TraceAbstraction took 13560.30 ms. Allocated memory was 250.1 MB in the beginning and 410.0 MB in the end (delta: 159.9 MB). Free memory was 191.1 MB in the beginning and 148.8 MB in the end (delta: 42.3 MB). Peak memory consumption was 202.2 MB. Max. memory is 7.1 GB. [2020-10-16 12:04:59,112 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 139.5 MB. Free memory was 121.0 MB in the beginning and 120.8 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 852.16 ms. Allocated memory was 139.5 MB in the beginning and 204.5 MB in the end (delta: 65.0 MB). Free memory was 100.2 MB in the beginning and 155.3 MB in the end (delta: -55.1 MB). Peak memory consumption was 23.2 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 65.11 ms. Allocated memory is still 204.5 MB. Free memory was 155.3 MB in the beginning and 152.6 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 38.38 ms. Allocated memory is still 204.5 MB. Free memory was 152.6 MB in the beginning and 149.8 MB in the end (delta: 2.8 MB). Peak memory consumption was 2.8 MB. Max. memory is 7.1 GB. * RCFGBuilder took 2146.81 ms. Allocated memory was 204.5 MB in the beginning and 250.1 MB in the end (delta: 45.6 MB). Free memory was 149.8 MB in the beginning and 193.0 MB in the end (delta: -43.2 MB). Peak memory consumption was 102.0 MB. Max. memory is 7.1 GB. * TraceAbstraction took 13560.30 ms. Allocated memory was 250.1 MB in the beginning and 410.0 MB in the end (delta: 159.9 MB). Free memory was 191.1 MB in the beginning and 148.8 MB in the end (delta: 42.3 MB). Peak memory consumption was 202.2 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 1217 VarBasedMoverChecksPositive, 40 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 0 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 107 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 9.2s, 119 PlacesBefore, 44 PlacesAfterwards, 108 TransitionsBefore, 31 TransitionsAfterwards, 2352 CoEnabledTransitionPairs, 7 FixpointIterations, 35 TrivialSequentialCompositions, 43 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 9 ConcurrentYvCompositions, 2 ChoiceCompositions, 89 TotalNumberOfCompositions, 6503 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_p1_EAX = 0; [L703] 0 int __unbuffered_p3_EAX = 0; [L705] 0 int a = 0; [L706] 0 _Bool main$tmp_guard0; [L707] 0 _Bool main$tmp_guard1; [L709] 0 int x = 0; [L711] 0 int y = 0; [L713] 0 int z = 0; [L714] 0 _Bool z$flush_delayed; [L715] 0 int z$mem_tmp; [L716] 0 _Bool z$r_buff0_thd0; [L717] 0 _Bool z$r_buff0_thd1; [L718] 0 _Bool z$r_buff0_thd2; [L719] 0 _Bool z$r_buff0_thd3; [L720] 0 _Bool z$r_buff0_thd4; [L721] 0 _Bool z$r_buff1_thd0; [L722] 0 _Bool z$r_buff1_thd1; [L723] 0 _Bool z$r_buff1_thd2; [L724] 0 _Bool z$r_buff1_thd3; [L725] 0 _Bool z$r_buff1_thd4; [L726] 0 _Bool z$read_delayed; [L727] 0 int *z$read_delayed_var; [L728] 0 int z$w_buff0; [L729] 0 _Bool z$w_buff0_used; [L730] 0 int z$w_buff1; [L731] 0 _Bool z$w_buff1_used; [L732] 0 _Bool weak$$choice0; [L733] 0 _Bool weak$$choice2; [L825] 0 pthread_t t1461; [L826] FCALL, FORK 0 pthread_create(&t1461, ((void *)0), P0, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=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] [L827] 0 pthread_t t1462; [L828] FCALL, FORK 0 pthread_create(&t1462, ((void *)0), P1, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=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] [L829] 0 pthread_t t1463; [L830] FCALL, FORK 0 pthread_create(&t1463, ((void *)0), P2, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=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] [L831] 0 pthread_t t1464; [L832] FCALL, FORK 0 pthread_create(&t1464, ((void *)0), P3, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=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] [L787] 4 z$w_buff1 = z$w_buff0 [L788] 4 z$w_buff0 = 2 [L789] 4 z$w_buff1_used = z$w_buff0_used [L790] 4 z$w_buff0_used = (_Bool)1 [L7] COND TRUE 4 !expression [L7] 4 __VERIFIER_error() [L792] 4 z$r_buff1_thd0 = z$r_buff0_thd0 [L793] 4 z$r_buff1_thd1 = z$r_buff0_thd1 [L794] 4 z$r_buff1_thd2 = z$r_buff0_thd2 [L795] 4 z$r_buff1_thd3 = z$r_buff0_thd3 [L796] 4 z$r_buff1_thd4 = z$r_buff0_thd4 [L797] 4 z$r_buff0_thd4 = (_Bool)1 VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p3_EAX=0, a=0, arg={0:0}, arg={0:0}, arg={0:0}, main$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] [L800] 4 __unbuffered_p3_EAX = a VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=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] [L737] 1 a = 1 VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=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] [L740] 1 x = 1 VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=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] [L745] 1 __unbuffered_cnt = __unbuffered_cnt + 1 [L747] 1 return 0; [L752] 2 x = 2 VAL [\result={0:0}, __unbuffered_cnt=1, __unbuffered_p1_EAX=0, __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] [L755] 2 __unbuffered_p1_EAX = y VAL [\result={0:0}, __unbuffered_cnt=1, __unbuffered_p1_EAX=0, __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] [L760] 2 __unbuffered_cnt = __unbuffered_cnt + 1 [L762] 2 return 0; [L767] 3 y = 1 VAL [\result={0:0}, \result={0:0}, __unbuffered_cnt=2, __unbuffered_p1_EAX=0, __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=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] [L770] 3 z = 1 VAL [\result={0:0}, \result={0:0}, __unbuffered_cnt=2, __unbuffered_p1_EAX=0, __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=1, 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] [L803] 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) [L803] 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) [L804] EXPR 4 z$w_buff0_used && z$r_buff0_thd4 ? (_Bool)0 : z$w_buff0_used [L804] 4 z$w_buff0_used = z$w_buff0_used && z$r_buff0_thd4 ? (_Bool)0 : z$w_buff0_used [L805] EXPR 4 z$w_buff0_used && z$r_buff0_thd4 || z$w_buff1_used && z$r_buff1_thd4 ? (_Bool)0 : z$w_buff1_used [L805] 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 [L806] EXPR 4 z$w_buff0_used && z$r_buff0_thd4 ? (_Bool)0 : z$r_buff0_thd4 [L806] 4 z$r_buff0_thd4 = z$w_buff0_used && z$r_buff0_thd4 ? (_Bool)0 : z$r_buff0_thd4 [L807] EXPR 4 z$w_buff0_used && z$r_buff0_thd4 || z$w_buff1_used && z$r_buff1_thd4 ? (_Bool)0 : z$r_buff1_thd4 [L807] 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 [L810] 4 __unbuffered_cnt = __unbuffered_cnt + 1 [L812] 4 return 0; [L773] 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) [L773] EXPR 3 z$w_buff1_used && z$r_buff1_thd3 ? z$w_buff1 : z [L773] EXPR 3 z$w_buff0_used && z$r_buff0_thd3 ? z$w_buff0 : (z$w_buff1_used && z$r_buff1_thd3 ? z$w_buff1 : z) [L773] 3 z = z$w_buff0_used && z$r_buff0_thd3 ? z$w_buff0 : (z$w_buff1_used && z$r_buff1_thd3 ? z$w_buff1 : z) [L774] EXPR 3 z$w_buff0_used && z$r_buff0_thd3 ? (_Bool)0 : z$w_buff0_used [L774] 3 z$w_buff0_used = z$w_buff0_used && z$r_buff0_thd3 ? (_Bool)0 : z$w_buff0_used [L775] EXPR 3 z$w_buff0_used && z$r_buff0_thd3 || z$w_buff1_used && z$r_buff1_thd3 ? (_Bool)0 : z$w_buff1_used [L775] 3 z$w_buff1_used = z$w_buff0_used && z$r_buff0_thd3 || z$w_buff1_used && z$r_buff1_thd3 ? (_Bool)0 : z$w_buff1_used [L776] EXPR 3 z$w_buff0_used && z$r_buff0_thd3 ? (_Bool)0 : z$r_buff0_thd3 [L776] 3 z$r_buff0_thd3 = z$w_buff0_used && z$r_buff0_thd3 ? (_Bool)0 : z$r_buff0_thd3 [L777] EXPR 3 z$w_buff0_used && z$r_buff0_thd3 || z$w_buff1_used && z$r_buff1_thd3 ? (_Bool)0 : z$r_buff1_thd3 [L777] 3 z$r_buff1_thd3 = z$w_buff0_used && z$r_buff0_thd3 || z$w_buff1_used && z$r_buff1_thd3 ? (_Bool)0 : z$r_buff1_thd3 [L780] 3 __unbuffered_cnt = __unbuffered_cnt + 1 [L782] 3 return 0; [L834] 0 main$tmp_guard0 = __unbuffered_cnt == 4 [L845] 0 weak$$choice0 = __VERIFIER_nondet_bool() [L846] 0 weak$$choice2 = __VERIFIER_nondet_bool() [L847] 0 z$flush_delayed = weak$$choice2 [L848] 0 z$mem_tmp = z [L849] EXPR 0 !z$w_buff0_used || !z$r_buff0_thd0 && !z$w_buff1_used || !z$r_buff0_thd0 && !z$r_buff1_thd0 ? z : (z$w_buff0_used && z$r_buff0_thd0 ? z$w_buff0 : z$w_buff1) [L849] 0 z = !z$w_buff0_used || !z$r_buff0_thd0 && !z$w_buff1_used || !z$r_buff0_thd0 && !z$r_buff1_thd0 ? z : (z$w_buff0_used && z$r_buff0_thd0 ? z$w_buff0 : z$w_buff1) [L850] EXPR 0 weak$$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$w_buff0)) [L850] EXPR 0 !z$w_buff0_used || !z$r_buff0_thd0 && !z$w_buff1_used || !z$r_buff0_thd0 && !z$r_buff1_thd0 ? z$w_buff0 : (z$w_buff0_used && z$r_buff0_thd0 ? z$w_buff0 : z$w_buff0) [L850] EXPR 0 z$w_buff0_used && z$r_buff0_thd0 ? z$w_buff0 : z$w_buff0 [L850] EXPR 0 !z$w_buff0_used || !z$r_buff0_thd0 && !z$w_buff1_used || !z$r_buff0_thd0 && !z$r_buff1_thd0 ? z$w_buff0 : (z$w_buff0_used && z$r_buff0_thd0 ? z$w_buff0 : z$w_buff0) [L850] EXPR 0 weak$$choice2 ? z$w_buff0 : (!z$w_buff0_used || !z$r_buff0_thd0 && !z$w_buff1_used || !z$r_buff0_thd0 && !z$r_buff1_thd0 ? z$w_buff0 : (z$w_buff0_used && z$r_buff0_thd0 ? z$w_buff0 : z$w_buff0)) [L850] 0 z$w_buff0 = weak$$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)) [L851] EXPR 0 weak$$choice2 ? z$w_buff1 : (!z$w_buff0_used || !z$r_buff0_thd0 && !z$w_buff1_used || !z$r_buff0_thd0 && !z$r_buff1_thd0 ? z$w_buff1 : (z$w_buff0_used && z$r_buff0_thd0 ? z$w_buff1 : z$w_buff1)) [L851] 0 z$w_buff1 = weak$$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)) [L852] EXPR 0 weak$$choice2 ? z$w_buff0_used : (!z$w_buff0_used || !z$r_buff0_thd0 && !z$w_buff1_used || !z$r_buff0_thd0 && !z$r_buff1_thd0 ? z$w_buff0_used : (z$w_buff0_used && z$r_buff0_thd0 ? (_Bool)0 : z$w_buff0_used)) [L852] 0 z$w_buff0_used = weak$$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)) [L853] EXPR 0 weak$$choice2 ? z$w_buff1_used : (!z$w_buff0_used || !z$r_buff0_thd0 && !z$w_buff1_used || !z$r_buff0_thd0 && !z$r_buff1_thd0 ? z$w_buff1_used : (z$w_buff0_used && z$r_buff0_thd0 ? (_Bool)0 : (_Bool)0)) [L853] 0 z$w_buff1_used = weak$$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)) [L854] EXPR 0 weak$$choice2 ? z$r_buff0_thd0 : (!z$w_buff0_used || !z$r_buff0_thd0 && !z$w_buff1_used || !z$r_buff0_thd0 && !z$r_buff1_thd0 ? z$r_buff0_thd0 : (z$w_buff0_used && z$r_buff0_thd0 ? (_Bool)0 : z$r_buff0_thd0)) [L854] 0 z$r_buff0_thd0 = weak$$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)) [L855] EXPR 0 weak$$choice2 ? z$r_buff1_thd0 : (!z$w_buff0_used || !z$r_buff0_thd0 && !z$w_buff1_used || !z$r_buff0_thd0 && !z$r_buff1_thd0 ? z$r_buff1_thd0 : (z$w_buff0_used && z$r_buff0_thd0 ? (_Bool)0 : (_Bool)0)) [L855] EXPR 0 !z$w_buff0_used || !z$r_buff0_thd0 && !z$w_buff1_used || !z$r_buff0_thd0 && !z$r_buff1_thd0 ? z$r_buff1_thd0 : (z$w_buff0_used && z$r_buff0_thd0 ? (_Bool)0 : (_Bool)0) [L855] EXPR 0 z$w_buff0_used && z$r_buff0_thd0 ? (_Bool)0 : (_Bool)0 [L855] EXPR 0 !z$w_buff0_used || !z$r_buff0_thd0 && !z$w_buff1_used || !z$r_buff0_thd0 && !z$r_buff1_thd0 ? z$r_buff1_thd0 : (z$w_buff0_used && z$r_buff0_thd0 ? (_Bool)0 : (_Bool)0) [L855] EXPR 0 weak$$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$r_buff0_thd0 ? (_Bool)0 : (_Bool)0)) [L855] 0 z$r_buff1_thd0 = weak$$choice2 ? z$r_buff1_thd0 : (!z$w_buff0_used || !z$r_buff0_thd0 && !z$w_buff1_used || !z$r_buff0_thd0 && !z$r_buff1_thd0 ? z$r_buff1_thd0 : (z$w_buff0_used && z$r_buff0_thd0 ? (_Bool)0 : (_Bool)0)) [L856] 0 main$tmp_guard1 = !(x == 2 && z == 2 && __unbuffered_p1_EAX == 0 && __unbuffered_p3_EAX == 0) [L857] EXPR 0 z$flush_delayed ? z$mem_tmp : z [L857] 0 z = z$flush_delayed ? z$mem_tmp : z [L858] 0 z$flush_delayed = (_Bool)0 [L7] COND TRUE 0 !expression [L7] 0 __VERIFIER_error() VAL [\result={0:0}, \result={0:0}, \result={0:0}, __unbuffered_cnt=4, __unbuffered_p1_EAX=0, __unbuffered_p3_EAX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, weak$$choice0=9, weak$$choice2=0, x=2, y=1, 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, 107 locations, 2 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 13.3s, OverallIterations: 15, TraceHistogramMax: 1, AutomataDifference: 1.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 9.4s, HoareTripleCheckerStatistics: 422 SDtfs, 507 SDslu, 707 SDs, 0 SdLazy, 322 SolverSat, 79 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 51 GetRequests, 6 SyntacticMatches, 1 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.3s 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: 0.7s AutomataMinimizationTime, 14 MinimizatonAttempts, 40 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 0.8s InterpolantComputationTime, 244 NumberOfCodeBlocks, 244 NumberOfCodeBlocksAsserted, 15 NumberOfCheckSat, 205 ConstructedInterpolants, 0 QuantifiedInterpolants, 22090 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 14 InterpolantComputations, 14 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...