/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe-Delay.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-wmm/mix056_pso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-9e34d99ae2c6837f487980c721c4b6acf9d9b15c-9e34d99 [2021-07-09 22:07:14,118 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-07-09 22:07:14,119 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-07-09 22:07:14,163 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-07-09 22:07:14,163 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-07-09 22:07:14,164 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-07-09 22:07:14,165 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-07-09 22:07:14,181 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-07-09 22:07:14,182 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-07-09 22:07:14,183 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-07-09 22:07:14,183 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-07-09 22:07:14,184 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-07-09 22:07:14,184 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-07-09 22:07:14,185 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-07-09 22:07:14,185 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-07-09 22:07:14,186 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-07-09 22:07:14,187 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-07-09 22:07:14,187 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-07-09 22:07:14,188 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-07-09 22:07:14,189 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-07-09 22:07:14,190 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-07-09 22:07:14,193 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-07-09 22:07:14,193 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-07-09 22:07:14,194 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-07-09 22:07:14,210 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-07-09 22:07:14,210 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-07-09 22:07:14,210 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-07-09 22:07:14,211 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-07-09 22:07:14,211 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-07-09 22:07:14,212 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-07-09 22:07:14,212 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-07-09 22:07:14,213 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-07-09 22:07:14,213 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-07-09 22:07:14,214 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-07-09 22:07:14,214 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-07-09 22:07:14,214 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-07-09 22:07:14,215 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-07-09 22:07:14,215 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-07-09 22:07:14,215 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-07-09 22:07:14,216 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-07-09 22:07:14,216 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-07-09 22:07:14,217 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe-Delay.epf [2021-07-09 22:07:14,241 INFO L113 SettingsManager]: Loading preferences was successful [2021-07-09 22:07:14,241 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-07-09 22:07:14,242 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-07-09 22:07:14,242 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-07-09 22:07:14,242 INFO L138 SettingsManager]: * Use SBE=true [2021-07-09 22:07:14,243 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-07-09 22:07:14,243 INFO L138 SettingsManager]: * sizeof long=4 [2021-07-09 22:07:14,243 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-07-09 22:07:14,243 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-07-09 22:07:14,243 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-07-09 22:07:14,243 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-07-09 22:07:14,243 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-07-09 22:07:14,243 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-07-09 22:07:14,243 INFO L138 SettingsManager]: * sizeof long double=12 [2021-07-09 22:07:14,243 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-07-09 22:07:14,244 INFO L138 SettingsManager]: * Use constant arrays=true [2021-07-09 22:07:14,244 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-07-09 22:07:14,244 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-07-09 22:07:14,244 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-07-09 22:07:14,244 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-07-09 22:07:14,244 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-07-09 22:07:14,244 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-07-09 22:07:14,244 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-07-09 22:07:14,244 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-07-09 22:07:14,244 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-07-09 22:07:14,245 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-07-09 22:07:14,245 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-07-09 22:07:14,245 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-07-09 22:07:14,245 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-07-09 22:07:14,245 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=SLEEP_DELAY_SET [2021-07-09 22:07:14,245 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-07-09 22:07:14,523 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-07-09 22:07:14,544 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-07-09 22:07:14,546 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-07-09 22:07:14,547 INFO L271 PluginConnector]: Initializing CDTParser... [2021-07-09 22:07:14,547 INFO L275 PluginConnector]: CDTParser initialized [2021-07-09 22:07:14,548 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/mix056_pso.opt.i [2021-07-09 22:07:14,600 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/07ef3fc70/f92734f4cae649588becdfffbcc9cb9d/FLAG7dbe259a1 [2021-07-09 22:07:15,096 INFO L306 CDTParser]: Found 1 translation units. [2021-07-09 22:07:15,096 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/mix056_pso.opt.i [2021-07-09 22:07:15,112 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/07ef3fc70/f92734f4cae649588becdfffbcc9cb9d/FLAG7dbe259a1 [2021-07-09 22:07:15,576 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/07ef3fc70/f92734f4cae649588becdfffbcc9cb9d [2021-07-09 22:07:15,579 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-07-09 22:07:15,581 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-07-09 22:07:15,583 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-07-09 22:07:15,583 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-07-09 22:07:15,585 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-07-09 22:07:15,586 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.07 10:07:15" (1/1) ... [2021-07-09 22:07:15,587 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4eb3f342 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.07 10:07:15, skipping insertion in model container [2021-07-09 22:07:15,587 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.07 10:07:15" (1/1) ... [2021-07-09 22:07:15,591 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-07-09 22:07:15,624 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-07-09 22:07:15,764 WARN L224 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/mix056_pso.opt.i[948,961] [2021-07-09 22:07:15,970 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-07-09 22:07:15,976 INFO L203 MainTranslator]: Completed pre-run [2021-07-09 22:07:15,982 WARN L224 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/mix056_pso.opt.i[948,961] [2021-07-09 22:07:16,024 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-07-09 22:07:16,071 INFO L208 MainTranslator]: Completed translation [2021-07-09 22:07:16,072 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.07 10:07:16 WrapperNode [2021-07-09 22:07:16,072 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-07-09 22:07:16,073 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-07-09 22:07:16,073 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-07-09 22:07:16,073 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-07-09 22:07:16,079 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.07 10:07:16" (1/1) ... [2021-07-09 22:07:16,091 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.07 10:07:16" (1/1) ... [2021-07-09 22:07:16,141 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-07-09 22:07:16,141 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-07-09 22:07:16,142 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-07-09 22:07:16,142 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-07-09 22:07:16,153 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.07 10:07:16" (1/1) ... [2021-07-09 22:07:16,153 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.07 10:07:16" (1/1) ... [2021-07-09 22:07:16,163 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.07 10:07:16" (1/1) ... [2021-07-09 22:07:16,163 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.07 10:07:16" (1/1) ... [2021-07-09 22:07:16,169 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.07 10:07:16" (1/1) ... [2021-07-09 22:07:16,171 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.07 10:07:16" (1/1) ... [2021-07-09 22:07:16,173 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.07 10:07:16" (1/1) ... [2021-07-09 22:07:16,176 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-07-09 22:07:16,176 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-07-09 22:07:16,176 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-07-09 22:07:16,176 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-07-09 22:07:16,177 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.07 10:07:16" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-07-09 22:07:16,245 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-07-09 22:07:16,246 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-07-09 22:07:16,246 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-07-09 22:07:16,246 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-07-09 22:07:16,247 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2021-07-09 22:07:16,247 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2021-07-09 22:07:16,248 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2021-07-09 22:07:16,248 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2021-07-09 22:07:16,248 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2021-07-09 22:07:16,249 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2021-07-09 22:07:16,249 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-07-09 22:07:16,249 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-07-09 22:07:16,249 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-07-09 22:07:16,249 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-07-09 22:07:16,250 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-07-09 22:07:17,422 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-07-09 22:07:17,423 INFO L299 CfgBuilder]: Removed 10 assume(true) statements. [2021-07-09 22:07:17,425 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.07 10:07:17 BoogieIcfgContainer [2021-07-09 22:07:17,425 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-07-09 22:07:17,426 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-07-09 22:07:17,426 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-07-09 22:07:17,428 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-07-09 22:07:17,428 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.07 10:07:15" (1/3) ... [2021-07-09 22:07:17,429 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3ec20bd8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.07 10:07:17, skipping insertion in model container [2021-07-09 22:07:17,429 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.07 10:07:16" (2/3) ... [2021-07-09 22:07:17,429 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3ec20bd8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.07 10:07:17, skipping insertion in model container [2021-07-09 22:07:17,429 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.07 10:07:17" (3/3) ... [2021-07-09 22:07:17,430 INFO L111 eAbstractionObserver]: Analyzing ICFG mix056_pso.opt.i [2021-07-09 22:07:17,435 WARN L148 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-07-09 22:07:17,436 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-07-09 22:07:17,436 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2021-07-09 22:07:17,436 INFO L474 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-07-09 22:07:17,465 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 22:07:17,466 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 22:07:17,466 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 22:07:17,466 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 22:07:17,466 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 22:07:17,466 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 22:07:17,466 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 22:07:17,466 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 22:07:17,467 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 22:07:17,467 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 22:07:17,467 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 22:07:17,467 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 22:07:17,467 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 22:07:17,467 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 22:07:17,467 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 22:07:17,467 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 22:07:17,468 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 22:07:17,468 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 22:07:17,468 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 22:07:17,468 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 22:07:17,468 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 22:07:17,468 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 22:07:17,469 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 22:07:17,469 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 22:07:17,469 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 22:07:17,469 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 22:07:17,469 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 22:07:17,470 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 22:07:17,470 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 22:07:17,470 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 22:07:17,470 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 22:07:17,470 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 22:07:17,471 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 22:07:17,471 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 22:07:17,471 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 22:07:17,471 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 22:07:17,471 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 22:07:17,471 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 22:07:17,472 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 22:07:17,472 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 22:07:17,472 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 22:07:17,472 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 22:07:17,472 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 22:07:17,472 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 22:07:17,473 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 22:07:17,473 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 22:07:17,473 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 22:07:17,473 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 22:07:17,473 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 22:07:17,473 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 22:07:17,473 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 22:07:17,473 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 22:07:17,474 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 22:07:17,474 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 22:07:17,474 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 22:07:17,474 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 22:07:17,474 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 22:07:17,474 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 22:07:17,475 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 22:07:17,475 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 22:07:17,475 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 22:07:17,475 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 22:07:17,475 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 22:07:17,475 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 22:07:17,476 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 22:07:17,476 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 22:07:17,476 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 22:07:17,476 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 22:07:17,476 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 22:07:17,476 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 22:07:17,477 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 22:07:17,477 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 22:07:17,478 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 22:07:17,478 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 22:07:17,479 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 22:07:17,479 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 22:07:17,479 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 22:07:17,479 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 22:07:17,479 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 22:07:17,479 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 22:07:17,479 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 22:07:17,480 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 22:07:17,480 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 22:07:17,480 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 22:07:17,481 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 22:07:17,482 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 22:07:17,482 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 22:07:17,482 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 22:07:17,483 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 22:07:17,483 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 22:07:17,483 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 22:07:17,483 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 22:07:17,483 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 22:07:17,484 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 22:07:17,484 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 22:07:17,484 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 22:07:17,484 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 22:07:17,485 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 22:07:17,491 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-07-09 22:07:17,510 INFO L255 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-07-09 22:07:17,530 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-07-09 22:07:17,531 INFO L379 AbstractCegarLoop]: Hoare is false [2021-07-09 22:07:17,533 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-07-09 22:07:17,533 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-07-09 22:07:17,533 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-07-09 22:07:17,533 INFO L383 AbstractCegarLoop]: Difference is false [2021-07-09 22:07:17,534 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-07-09 22:07:17,534 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == P2Thread1of1ForFork0======== [2021-07-09 22:07:18,070 INFO L276 IsEmpty]: Start isEmpty. Operand has 5016 states, 4932 states have (on average 2.126926196269262) internal successors, (10490), 5015 states have internal predecessors, (10490), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 22:07:18,081 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2021-07-09 22:07:18,081 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 22:07:18,082 INFO L508 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, 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, 1, 1, 1, 1, 1] [2021-07-09 22:07:18,082 INFO L430 AbstractCegarLoop]: === Iteration 1 === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 22:07:18,087 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 22:07:18,087 INFO L82 PathProgramCache]: Analyzing trace with hash -403253400, now seen corresponding path program 1 times [2021-07-09 22:07:18,093 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 22:07:18,094 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [623913242] [2021-07-09 22:07:18,094 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 22:07:18,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 22:07:18,347 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 22:07:18,348 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-09 22:07:18,348 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 22:07:18,349 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-09 22:07:18,355 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 22:07:18,355 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 22:07:18,355 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [623913242] [2021-07-09 22:07:18,356 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [623913242] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 22:07:18,356 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 22:07:18,356 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-07-09 22:07:18,356 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1442472466] [2021-07-09 22:07:18,359 INFO L462 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-07-09 22:07:18,359 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 22:07:18,368 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-07-09 22:07:18,368 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-07-09 22:07:18,380 INFO L87 Difference]: Start difference. First operand has 5016 states, 4932 states have (on average 2.126926196269262) internal successors, (10490), 5015 states have internal predecessors, (10490), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 2 states have (on average 27.5) internal successors, (55), 3 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 22:07:18,437 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 22:07:18,438 INFO L93 Difference]: Finished difference Result 3392 states and 6445 transitions. [2021-07-09 22:07:18,438 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-09 22:07:18,439 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 27.5) internal successors, (55), 3 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 55 [2021-07-09 22:07:18,440 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 22:07:18,443 INFO L225 Difference]: With dead ends: 3392 [2021-07-09 22:07:18,443 INFO L226 Difference]: Without dead ends: 0 [2021-07-09 22:07:18,444 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 5.4ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-07-09 22:07:18,454 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-07-09 22:07:18,457 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-07-09 22:07:18,457 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 22:07:18,458 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-07-09 22:07:18,458 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 55 [2021-07-09 22:07:18,458 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 22:07:18,458 INFO L482 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-07-09 22:07:18,459 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 3 states, 2 states have (on average 27.5) internal successors, (55), 3 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 22:07:18,459 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-07-09 22:07:18,459 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-07-09 22:07:18,459 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-07-09 22:07:18,459 INFO L301 ceAbstractionStarter]: Result for error location P2Thread1of1ForFork0 was SAFE (1/2) [2021-07-09 22:07:18,461 INFO L255 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2021-07-09 22:07:18,463 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-07-09 22:07:18,464 INFO L379 AbstractCegarLoop]: Hoare is false [2021-07-09 22:07:18,464 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-07-09 22:07:18,464 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-07-09 22:07:18,464 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-07-09 22:07:18,464 INFO L383 AbstractCegarLoop]: Difference is false [2021-07-09 22:07:18,464 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-07-09 22:07:18,464 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == ULTIMATE.start======== [2021-07-09 22:07:19,064 INFO L276 IsEmpty]: Start isEmpty. Operand has 8544 states, 7362 states have (on average 2.1389568052159738) internal successors, (15747), 8543 states have internal predecessors, (15747), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 22:07:19,076 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2021-07-09 22:07:19,077 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 22:07:19,077 INFO L508 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-09 22:07:19,077 INFO L430 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 22:07:19,078 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 22:07:19,079 INFO L82 PathProgramCache]: Analyzing trace with hash 377873787, now seen corresponding path program 1 times [2021-07-09 22:07:19,079 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 22:07:19,079 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1474174360] [2021-07-09 22:07:19,079 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 22:07:19,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 22:07:19,170 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 22:07:19,171 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-09 22:07:19,171 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 22:07:19,172 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-09 22:07:19,179 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-07-09 22:07:19,179 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-07-09 22:07:19,191 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 22:07:19,192 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-07-09 22:07:19,198 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 22:07:19,198 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-07-09 22:07:19,204 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 22:07:19,205 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-09 22:07:19,205 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 22:07:19,205 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 22:07:19,206 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1474174360] [2021-07-09 22:07:19,206 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1474174360] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 22:07:19,206 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 22:07:19,206 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-07-09 22:07:19,206 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [892811395] [2021-07-09 22:07:19,206 INFO L462 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-07-09 22:07:19,206 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 22:07:19,207 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-07-09 22:07:19,207 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-07-09 22:07:19,220 INFO L87 Difference]: Start difference. First operand has 8544 states, 7362 states have (on average 2.1389568052159738) internal successors, (15747), 8543 states have internal predecessors, (15747), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 6 states, 6 states have (on average 11.166666666666666) internal successors, (67), 6 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 22:07:19,428 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 22:07:19,428 INFO L93 Difference]: Finished difference Result 10236 states and 19511 transitions. [2021-07-09 22:07:19,428 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-07-09 22:07:19,429 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.166666666666666) internal successors, (67), 6 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 67 [2021-07-09 22:07:19,429 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 22:07:19,456 INFO L225 Difference]: With dead ends: 10236 [2021-07-09 22:07:19,456 INFO L226 Difference]: Without dead ends: 4686 [2021-07-09 22:07:19,457 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 82.6ms TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2021-07-09 22:07:19,473 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4686 states. [2021-07-09 22:07:19,627 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4686 to 4686. [2021-07-09 22:07:19,634 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4686 states, 4632 states have (on average 2.2983592400690847) internal successors, (10646), 4685 states have internal predecessors, (10646), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 22:07:19,647 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4686 states to 4686 states and 10646 transitions. [2021-07-09 22:07:19,647 INFO L78 Accepts]: Start accepts. Automaton has 4686 states and 10646 transitions. Word has length 67 [2021-07-09 22:07:19,648 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 22:07:19,648 INFO L482 AbstractCegarLoop]: Abstraction has 4686 states and 10646 transitions. [2021-07-09 22:07:19,648 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 11.166666666666666) internal successors, (67), 6 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 22:07:19,648 INFO L276 IsEmpty]: Start isEmpty. Operand 4686 states and 10646 transitions. [2021-07-09 22:07:19,652 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2021-07-09 22:07:19,652 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 22:07:19,652 INFO L508 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-09 22:07:19,653 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-07-09 22:07:19,653 INFO L430 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 22:07:19,653 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 22:07:19,653 INFO L82 PathProgramCache]: Analyzing trace with hash 517357948, now seen corresponding path program 1 times [2021-07-09 22:07:19,653 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 22:07:19,654 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [652300710] [2021-07-09 22:07:19,654 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 22:07:19,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 22:07:19,782 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 22:07:19,782 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-09 22:07:19,783 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 22:07:19,783 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-09 22:07:19,785 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 22:07:19,786 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-07-09 22:07:19,790 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 22:07:19,791 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-07-09 22:07:19,797 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 22:07:19,798 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-07-09 22:07:19,809 INFO L142 QuantifierPusher]: treesize reduction 26, result has 54.4 percent of original size [2021-07-09 22:07:19,810 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-07-09 22:07:19,825 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-07-09 22:07:19,825 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-07-09 22:07:19,838 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 22:07:19,840 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-07-09 22:07:19,847 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 22:07:19,850 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-07-09 22:07:19,858 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 22:07:19,858 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-09 22:07:19,859 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 22:07:19,859 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 22:07:19,859 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [652300710] [2021-07-09 22:07:19,859 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [652300710] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 22:07:19,859 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 22:07:19,859 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-07-09 22:07:19,859 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2015022312] [2021-07-09 22:07:19,860 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-07-09 22:07:19,860 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 22:07:19,861 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-07-09 22:07:19,861 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2021-07-09 22:07:19,861 INFO L87 Difference]: Start difference. First operand 4686 states and 10646 transitions. Second operand has 10 states, 10 states have (on average 6.9) internal successors, (69), 10 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 22:07:20,188 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 22:07:20,188 INFO L93 Difference]: Finished difference Result 5764 states and 13528 transitions. [2021-07-09 22:07:20,205 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-07-09 22:07:20,205 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 6.9) internal successors, (69), 10 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 69 [2021-07-09 22:07:20,205 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 22:07:20,230 INFO L225 Difference]: With dead ends: 5764 [2021-07-09 22:07:20,230 INFO L226 Difference]: Without dead ends: 4424 [2021-07-09 22:07:20,231 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 200.3ms TimeCoverageRelationStatistics Valid=99, Invalid=207, Unknown=0, NotChecked=0, Total=306 [2021-07-09 22:07:20,243 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4424 states. [2021-07-09 22:07:20,387 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4424 to 4386. [2021-07-09 22:07:20,393 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4386 states, 4333 states have (on average 2.28986845141934) internal successors, (9922), 4385 states have internal predecessors, (9922), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 22:07:20,404 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4386 states to 4386 states and 9922 transitions. [2021-07-09 22:07:20,405 INFO L78 Accepts]: Start accepts. Automaton has 4386 states and 9922 transitions. Word has length 69 [2021-07-09 22:07:20,405 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 22:07:20,405 INFO L482 AbstractCegarLoop]: Abstraction has 4386 states and 9922 transitions. [2021-07-09 22:07:20,405 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 6.9) internal successors, (69), 10 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 22:07:20,405 INFO L276 IsEmpty]: Start isEmpty. Operand 4386 states and 9922 transitions. [2021-07-09 22:07:20,409 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2021-07-09 22:07:20,409 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 22:07:20,409 INFO L508 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-09 22:07:20,410 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-07-09 22:07:20,410 INFO L430 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 22:07:20,410 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 22:07:20,410 INFO L82 PathProgramCache]: Analyzing trace with hash -794242782, now seen corresponding path program 1 times [2021-07-09 22:07:20,410 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 22:07:20,410 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1123784244] [2021-07-09 22:07:20,410 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 22:07:20,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 22:07:20,487 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 22:07:20,488 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-09 22:07:20,488 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 22:07:20,489 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-09 22:07:20,492 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 22:07:20,492 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-07-09 22:07:20,498 INFO L142 QuantifierPusher]: treesize reduction 26, result has 51.9 percent of original size [2021-07-09 22:07:20,499 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-07-09 22:07:20,512 INFO L142 QuantifierPusher]: treesize reduction 26, result has 54.4 percent of original size [2021-07-09 22:07:20,512 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-07-09 22:07:20,530 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-07-09 22:07:20,531 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-07-09 22:07:20,548 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 22:07:20,548 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-07-09 22:07:20,556 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 22:07:20,557 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-07-09 22:07:20,564 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 22:07:20,565 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-09 22:07:20,565 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 22:07:20,565 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 22:07:20,565 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1123784244] [2021-07-09 22:07:20,565 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1123784244] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 22:07:20,565 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 22:07:20,566 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-07-09 22:07:20,566 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1196992973] [2021-07-09 22:07:20,566 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-07-09 22:07:20,566 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 22:07:20,566 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-07-09 22:07:20,567 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2021-07-09 22:07:20,567 INFO L87 Difference]: Start difference. First operand 4386 states and 9922 transitions. Second operand has 9 states, 9 states have (on average 7.777777777777778) internal successors, (70), 9 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 22:07:20,850 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 22:07:20,850 INFO L93 Difference]: Finished difference Result 4855 states and 10987 transitions. [2021-07-09 22:07:20,851 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-07-09 22:07:20,851 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 7.777777777777778) internal successors, (70), 9 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 70 [2021-07-09 22:07:20,853 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 22:07:20,866 INFO L225 Difference]: With dead ends: 4855 [2021-07-09 22:07:20,866 INFO L226 Difference]: Without dead ends: 4015 [2021-07-09 22:07:20,867 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 217.9ms TimeCoverageRelationStatistics Valid=114, Invalid=228, Unknown=0, NotChecked=0, Total=342 [2021-07-09 22:07:20,878 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4015 states. [2021-07-09 22:07:20,960 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4015 to 4008. [2021-07-09 22:07:20,964 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4008 states, 3958 states have (on average 2.2339565437089437) internal successors, (8842), 4007 states have internal predecessors, (8842), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 22:07:20,974 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4008 states to 4008 states and 8842 transitions. [2021-07-09 22:07:20,975 INFO L78 Accepts]: Start accepts. Automaton has 4008 states and 8842 transitions. Word has length 70 [2021-07-09 22:07:20,975 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 22:07:20,975 INFO L482 AbstractCegarLoop]: Abstraction has 4008 states and 8842 transitions. [2021-07-09 22:07:20,975 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 7.777777777777778) internal successors, (70), 9 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 22:07:20,975 INFO L276 IsEmpty]: Start isEmpty. Operand 4008 states and 8842 transitions. [2021-07-09 22:07:20,980 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2021-07-09 22:07:20,980 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 22:07:20,980 INFO L508 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-09 22:07:20,980 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-07-09 22:07:20,980 INFO L430 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 22:07:20,980 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 22:07:20,980 INFO L82 PathProgramCache]: Analyzing trace with hash -589164244, now seen corresponding path program 2 times [2021-07-09 22:07:20,981 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 22:07:20,981 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1092454277] [2021-07-09 22:07:20,981 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 22:07:21,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 22:07:21,105 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 22:07:21,105 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-09 22:07:21,106 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 22:07:21,106 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-09 22:07:21,109 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 22:07:21,110 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-07-09 22:07:21,115 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 22:07:21,116 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-07-09 22:07:21,127 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 22:07:21,127 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-07-09 22:07:21,142 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 22:07:21,142 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-07-09 22:07:21,160 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-07-09 22:07:21,164 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-07-09 22:07:21,177 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 22:07:21,178 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-07-09 22:07:21,186 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 22:07:21,186 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-07-09 22:07:21,195 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 22:07:21,195 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-09 22:07:21,196 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 22:07:21,196 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 22:07:21,196 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1092454277] [2021-07-09 22:07:21,196 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1092454277] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 22:07:21,196 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 22:07:21,196 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-07-09 22:07:21,196 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [400922359] [2021-07-09 22:07:21,197 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-07-09 22:07:21,197 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 22:07:21,197 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-07-09 22:07:21,197 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2021-07-09 22:07:21,197 INFO L87 Difference]: Start difference. First operand 4008 states and 8842 transitions. Second operand has 10 states, 10 states have (on average 7.0) internal successors, (70), 10 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 22:07:21,423 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 22:07:21,424 INFO L93 Difference]: Finished difference Result 4435 states and 10215 transitions. [2021-07-09 22:07:21,424 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-07-09 22:07:21,424 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 7.0) internal successors, (70), 10 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 70 [2021-07-09 22:07:21,424 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 22:07:21,435 INFO L225 Difference]: With dead ends: 4435 [2021-07-09 22:07:21,435 INFO L226 Difference]: Without dead ends: 3595 [2021-07-09 22:07:21,436 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 160.8ms TimeCoverageRelationStatistics Valid=85, Invalid=187, Unknown=0, NotChecked=0, Total=272 [2021-07-09 22:07:21,445 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3595 states. [2021-07-09 22:07:21,482 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3595 to 3581. [2021-07-09 22:07:21,486 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3581 states, 3531 states have (on average 2.277541772868876) internal successors, (8042), 3580 states have internal predecessors, (8042), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 22:07:21,492 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3581 states to 3581 states and 8042 transitions. [2021-07-09 22:07:21,493 INFO L78 Accepts]: Start accepts. Automaton has 3581 states and 8042 transitions. Word has length 70 [2021-07-09 22:07:21,493 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 22:07:21,493 INFO L482 AbstractCegarLoop]: Abstraction has 3581 states and 8042 transitions. [2021-07-09 22:07:21,493 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 7.0) internal successors, (70), 10 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 22:07:21,493 INFO L276 IsEmpty]: Start isEmpty. Operand 3581 states and 8042 transitions. [2021-07-09 22:07:21,496 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2021-07-09 22:07:21,496 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 22:07:21,497 INFO L508 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-09 22:07:21,497 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-07-09 22:07:21,497 INFO L430 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 22:07:21,497 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 22:07:21,497 INFO L82 PathProgramCache]: Analyzing trace with hash -757484194, now seen corresponding path program 1 times [2021-07-09 22:07:21,497 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 22:07:21,497 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1325412939] [2021-07-09 22:07:21,498 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 22:07:21,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 22:07:21,608 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 22:07:21,609 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-09 22:07:21,609 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 22:07:21,610 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-09 22:07:21,612 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 22:07:21,613 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-07-09 22:07:21,618 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 22:07:21,618 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-07-09 22:07:21,626 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 22:07:21,626 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-07-09 22:07:21,639 INFO L142 QuantifierPusher]: treesize reduction 26, result has 67.9 percent of original size [2021-07-09 22:07:21,641 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 55 [2021-07-09 22:07:21,650 INFO L142 QuantifierPusher]: treesize reduction 26, result has 67.9 percent of original size [2021-07-09 22:07:21,651 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 55 [2021-07-09 22:07:21,671 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-07-09 22:07:21,672 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-07-09 22:07:21,685 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 22:07:21,686 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-07-09 22:07:21,693 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 22:07:21,694 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-07-09 22:07:21,703 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 22:07:21,703 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-09 22:07:21,704 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 22:07:21,704 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 22:07:21,704 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1325412939] [2021-07-09 22:07:21,704 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1325412939] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 22:07:21,704 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 22:07:21,704 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-07-09 22:07:21,704 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1466257166] [2021-07-09 22:07:21,704 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-07-09 22:07:21,705 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 22:07:21,705 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-07-09 22:07:21,705 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2021-07-09 22:07:21,705 INFO L87 Difference]: Start difference. First operand 3581 states and 8042 transitions. Second operand has 10 states, 10 states have (on average 7.1) internal successors, (71), 10 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 22:07:21,894 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 22:07:21,894 INFO L93 Difference]: Finished difference Result 4201 states and 9782 transitions. [2021-07-09 22:07:21,895 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-07-09 22:07:21,895 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 7.1) internal successors, (71), 10 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 71 [2021-07-09 22:07:21,895 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 22:07:21,909 INFO L225 Difference]: With dead ends: 4201 [2021-07-09 22:07:21,909 INFO L226 Difference]: Without dead ends: 3401 [2021-07-09 22:07:21,910 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 141.2ms TimeCoverageRelationStatistics Valid=63, Invalid=147, Unknown=0, NotChecked=0, Total=210 [2021-07-09 22:07:21,923 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3401 states. [2021-07-09 22:07:21,971 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3401 to 3401. [2021-07-09 22:07:21,975 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3401 states, 3351 states have (on average 2.2154580722172486) internal successors, (7424), 3400 states have internal predecessors, (7424), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 22:07:21,982 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3401 states to 3401 states and 7424 transitions. [2021-07-09 22:07:21,982 INFO L78 Accepts]: Start accepts. Automaton has 3401 states and 7424 transitions. Word has length 71 [2021-07-09 22:07:21,983 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 22:07:21,983 INFO L482 AbstractCegarLoop]: Abstraction has 3401 states and 7424 transitions. [2021-07-09 22:07:21,983 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 7.1) internal successors, (71), 10 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 22:07:21,983 INFO L276 IsEmpty]: Start isEmpty. Operand 3401 states and 7424 transitions. [2021-07-09 22:07:21,986 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2021-07-09 22:07:21,987 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 22:07:21,987 INFO L508 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-09 22:07:21,987 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-07-09 22:07:21,987 INFO L430 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 22:07:21,987 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 22:07:21,987 INFO L82 PathProgramCache]: Analyzing trace with hash -1659643520, now seen corresponding path program 1 times [2021-07-09 22:07:21,987 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 22:07:21,988 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [730852669] [2021-07-09 22:07:21,988 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 22:07:22,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 22:07:22,048 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 22:07:22,048 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-09 22:07:22,048 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 22:07:22,049 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-09 22:07:22,051 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 22:07:22,052 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-07-09 22:07:22,058 INFO L142 QuantifierPusher]: treesize reduction 26, result has 54.4 percent of original size [2021-07-09 22:07:22,058 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-07-09 22:07:22,073 INFO L142 QuantifierPusher]: treesize reduction 26, result has 54.4 percent of original size [2021-07-09 22:07:22,074 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-07-09 22:07:22,090 INFO L142 QuantifierPusher]: treesize reduction 26, result has 56.7 percent of original size [2021-07-09 22:07:22,092 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-07-09 22:07:22,111 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-07-09 22:07:22,112 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-07-09 22:07:22,127 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 22:07:22,127 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-07-09 22:07:22,136 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 22:07:22,136 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-07-09 22:07:22,145 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 22:07:22,146 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-09 22:07:22,146 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 22:07:22,146 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 22:07:22,146 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [730852669] [2021-07-09 22:07:22,146 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [730852669] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 22:07:22,146 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 22:07:22,146 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-07-09 22:07:22,147 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [702181152] [2021-07-09 22:07:22,147 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-07-09 22:07:22,147 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 22:07:22,147 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-07-09 22:07:22,147 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2021-07-09 22:07:22,147 INFO L87 Difference]: Start difference. First operand 3401 states and 7424 transitions. Second operand has 10 states, 10 states have (on average 7.2) internal successors, (72), 10 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 22:07:22,422 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 22:07:22,422 INFO L93 Difference]: Finished difference Result 4185 states and 9561 transitions. [2021-07-09 22:07:22,423 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-07-09 22:07:22,423 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 7.2) internal successors, (72), 10 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 72 [2021-07-09 22:07:22,423 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 22:07:22,429 INFO L225 Difference]: With dead ends: 4185 [2021-07-09 22:07:22,430 INFO L226 Difference]: Without dead ends: 3625 [2021-07-09 22:07:22,430 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 214.5ms TimeCoverageRelationStatistics Valid=71, Invalid=201, Unknown=0, NotChecked=0, Total=272 [2021-07-09 22:07:22,440 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3625 states. [2021-07-09 22:07:22,481 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3625 to 3443. [2021-07-09 22:07:22,484 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3443 states, 3393 states have (on average 2.210138520483348) internal successors, (7499), 3442 states have internal predecessors, (7499), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 22:07:22,491 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3443 states to 3443 states and 7499 transitions. [2021-07-09 22:07:22,491 INFO L78 Accepts]: Start accepts. Automaton has 3443 states and 7499 transitions. Word has length 72 [2021-07-09 22:07:22,491 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 22:07:22,491 INFO L482 AbstractCegarLoop]: Abstraction has 3443 states and 7499 transitions. [2021-07-09 22:07:22,492 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 7.2) internal successors, (72), 10 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 22:07:22,492 INFO L276 IsEmpty]: Start isEmpty. Operand 3443 states and 7499 transitions. [2021-07-09 22:07:22,499 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2021-07-09 22:07:22,499 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 22:07:22,499 INFO L508 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-09 22:07:22,499 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-07-09 22:07:22,499 INFO L430 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 22:07:22,500 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 22:07:22,500 INFO L82 PathProgramCache]: Analyzing trace with hash 1026578702, now seen corresponding path program 2 times [2021-07-09 22:07:22,500 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 22:07:22,500 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2085323193] [2021-07-09 22:07:22,500 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 22:07:22,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 22:07:22,569 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 22:07:22,569 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-09 22:07:22,570 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 22:07:22,570 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-09 22:07:22,572 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 22:07:22,572 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-07-09 22:07:22,582 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 22:07:22,583 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-07-09 22:07:22,590 INFO L142 QuantifierPusher]: treesize reduction 37, result has 41.3 percent of original size [2021-07-09 22:07:22,591 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-07-09 22:07:22,617 INFO L142 QuantifierPusher]: treesize reduction 27, result has 69.0 percent of original size [2021-07-09 22:07:22,618 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-07-09 22:07:22,654 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-07-09 22:07:22,655 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-07-09 22:07:22,669 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 22:07:22,669 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-07-09 22:07:22,678 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 22:07:22,678 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-07-09 22:07:22,688 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 22:07:22,688 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-09 22:07:22,689 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 22:07:22,689 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 22:07:22,689 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2085323193] [2021-07-09 22:07:22,689 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2085323193] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 22:07:22,689 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 22:07:22,689 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-07-09 22:07:22,689 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [166973117] [2021-07-09 22:07:22,690 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-07-09 22:07:22,690 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 22:07:22,690 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-07-09 22:07:22,691 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2021-07-09 22:07:22,692 INFO L87 Difference]: Start difference. First operand 3443 states and 7499 transitions. Second operand has 10 states, 10 states have (on average 7.2) internal successors, (72), 10 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 22:07:23,041 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 22:07:23,041 INFO L93 Difference]: Finished difference Result 4167 states and 9447 transitions. [2021-07-09 22:07:23,042 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-07-09 22:07:23,042 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 7.2) internal successors, (72), 10 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 72 [2021-07-09 22:07:23,042 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 22:07:23,052 INFO L225 Difference]: With dead ends: 4167 [2021-07-09 22:07:23,052 INFO L226 Difference]: Without dead ends: 3607 [2021-07-09 22:07:23,053 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 285.4ms TimeCoverageRelationStatistics Valid=78, Invalid=194, Unknown=0, NotChecked=0, Total=272 [2021-07-09 22:07:23,067 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3607 states. [2021-07-09 22:07:23,122 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3607 to 3373. [2021-07-09 22:07:23,127 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3373 states, 3323 states have (on average 2.194703581101414) internal successors, (7293), 3372 states have internal predecessors, (7293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 22:07:23,136 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3373 states to 3373 states and 7293 transitions. [2021-07-09 22:07:23,136 INFO L78 Accepts]: Start accepts. Automaton has 3373 states and 7293 transitions. Word has length 72 [2021-07-09 22:07:23,137 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 22:07:23,137 INFO L482 AbstractCegarLoop]: Abstraction has 3373 states and 7293 transitions. [2021-07-09 22:07:23,137 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 7.2) internal successors, (72), 10 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 22:07:23,137 INFO L276 IsEmpty]: Start isEmpty. Operand 3373 states and 7293 transitions. [2021-07-09 22:07:23,142 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2021-07-09 22:07:23,143 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 22:07:23,143 INFO L508 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-09 22:07:23,143 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-07-09 22:07:23,143 INFO L430 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 22:07:23,143 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 22:07:23,144 INFO L82 PathProgramCache]: Analyzing trace with hash 893367775, now seen corresponding path program 1 times [2021-07-09 22:07:23,144 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 22:07:23,144 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1700003787] [2021-07-09 22:07:23,144 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 22:07:23,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 22:07:23,211 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 22:07:23,212 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-09 22:07:23,212 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 22:07:23,213 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-09 22:07:23,216 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.8 percent of original size [2021-07-09 22:07:23,216 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-07-09 22:07:23,230 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 22:07:23,231 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-07-09 22:07:23,237 INFO L142 QuantifierPusher]: treesize reduction 11, result has 45.0 percent of original size [2021-07-09 22:07:23,238 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-07-09 22:07:23,245 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 22:07:23,245 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-09 22:07:23,246 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 22:07:23,246 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 22:07:23,246 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1700003787] [2021-07-09 22:07:23,246 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1700003787] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 22:07:23,247 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 22:07:23,247 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-07-09 22:07:23,248 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [444055813] [2021-07-09 22:07:23,248 INFO L462 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-07-09 22:07:23,248 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 22:07:23,248 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-07-09 22:07:23,248 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-07-09 22:07:23,249 INFO L87 Difference]: Start difference. First operand 3373 states and 7293 transitions. Second operand has 6 states, 6 states have (on average 12.166666666666666) internal successors, (73), 6 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 22:07:23,342 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 22:07:23,342 INFO L93 Difference]: Finished difference Result 3977 states and 8131 transitions. [2021-07-09 22:07:23,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-07-09 22:07:23,342 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 12.166666666666666) internal successors, (73), 6 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 73 [2021-07-09 22:07:23,343 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 22:07:23,349 INFO L225 Difference]: With dead ends: 3977 [2021-07-09 22:07:23,349 INFO L226 Difference]: Without dead ends: 2697 [2021-07-09 22:07:23,349 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 74.7ms TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2021-07-09 22:07:23,356 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2697 states. [2021-07-09 22:07:23,389 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2697 to 2697. [2021-07-09 22:07:23,393 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2697 states, 2647 states have (on average 2.206271250472233) internal successors, (5840), 2696 states have internal predecessors, (5840), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 22:07:23,399 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2697 states to 2697 states and 5840 transitions. [2021-07-09 22:07:23,399 INFO L78 Accepts]: Start accepts. Automaton has 2697 states and 5840 transitions. Word has length 73 [2021-07-09 22:07:23,400 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 22:07:23,400 INFO L482 AbstractCegarLoop]: Abstraction has 2697 states and 5840 transitions. [2021-07-09 22:07:23,400 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 12.166666666666666) internal successors, (73), 6 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 22:07:23,400 INFO L276 IsEmpty]: Start isEmpty. Operand 2697 states and 5840 transitions. [2021-07-09 22:07:23,404 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2021-07-09 22:07:23,404 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 22:07:23,404 INFO L508 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-09 22:07:23,404 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-07-09 22:07:23,404 INFO L430 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 22:07:23,404 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 22:07:23,405 INFO L82 PathProgramCache]: Analyzing trace with hash 1979117839, now seen corresponding path program 1 times [2021-07-09 22:07:23,405 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 22:07:23,405 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [146427293] [2021-07-09 22:07:23,405 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 22:07:23,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 22:07:23,473 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 22:07:23,473 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-09 22:07:23,474 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 22:07:23,474 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-09 22:07:23,476 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 22:07:23,476 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-09 22:07:23,479 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.8 percent of original size [2021-07-09 22:07:23,480 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-07-09 22:07:23,491 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 22:07:23,491 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-07-09 22:07:23,500 INFO L142 QuantifierPusher]: treesize reduction 11, result has 45.0 percent of original size [2021-07-09 22:07:23,500 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-07-09 22:07:23,506 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 22:07:23,507 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-09 22:07:23,507 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 22:07:23,507 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 22:07:23,507 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [146427293] [2021-07-09 22:07:23,507 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [146427293] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 22:07:23,507 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 22:07:23,507 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-07-09 22:07:23,507 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1258434433] [2021-07-09 22:07:23,508 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-07-09 22:07:23,508 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 22:07:23,508 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-07-09 22:07:23,508 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-07-09 22:07:23,508 INFO L87 Difference]: Start difference. First operand 2697 states and 5840 transitions. Second operand has 7 states, 7 states have (on average 10.571428571428571) internal successors, (74), 7 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 22:07:23,606 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 22:07:23,607 INFO L93 Difference]: Finished difference Result 2238 states and 4368 transitions. [2021-07-09 22:07:23,607 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-07-09 22:07:23,607 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.571428571428571) internal successors, (74), 7 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 74 [2021-07-09 22:07:23,607 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 22:07:23,610 INFO L225 Difference]: With dead ends: 2238 [2021-07-09 22:07:23,610 INFO L226 Difference]: Without dead ends: 1298 [2021-07-09 22:07:23,611 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 73.8ms TimeCoverageRelationStatistics Valid=49, Invalid=107, Unknown=0, NotChecked=0, Total=156 [2021-07-09 22:07:23,615 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1298 states. [2021-07-09 22:07:23,633 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1298 to 1296. [2021-07-09 22:07:23,634 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1296 states, 1260 states have (on average 2.0825396825396827) internal successors, (2624), 1295 states have internal predecessors, (2624), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 22:07:23,636 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1296 states to 1296 states and 2624 transitions. [2021-07-09 22:07:23,636 INFO L78 Accepts]: Start accepts. Automaton has 1296 states and 2624 transitions. Word has length 74 [2021-07-09 22:07:23,637 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 22:07:23,637 INFO L482 AbstractCegarLoop]: Abstraction has 1296 states and 2624 transitions. [2021-07-09 22:07:23,637 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 10.571428571428571) internal successors, (74), 7 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 22:07:23,637 INFO L276 IsEmpty]: Start isEmpty. Operand 1296 states and 2624 transitions. [2021-07-09 22:07:23,639 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2021-07-09 22:07:23,639 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 22:07:23,639 INFO L508 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, 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, 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, 1] [2021-07-09 22:07:23,639 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-07-09 22:07:23,639 INFO L430 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 22:07:23,639 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 22:07:23,639 INFO L82 PathProgramCache]: Analyzing trace with hash -1203333034, now seen corresponding path program 1 times [2021-07-09 22:07:23,639 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 22:07:23,640 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [519192702] [2021-07-09 22:07:23,640 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 22:07:23,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 22:07:23,684 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 22:07:23,685 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-09 22:07:23,686 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 22:07:23,686 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-09 22:07:23,690 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-07-09 22:07:23,691 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-07-09 22:07:23,702 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 22:07:23,703 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-07-09 22:07:23,708 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 22:07:23,709 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-07-09 22:07:23,714 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 22:07:23,715 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-09 22:07:23,715 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 22:07:23,715 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 22:07:23,715 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [519192702] [2021-07-09 22:07:23,715 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [519192702] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 22:07:23,715 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 22:07:23,715 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-07-09 22:07:23,715 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [450285756] [2021-07-09 22:07:23,716 INFO L462 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-07-09 22:07:23,716 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 22:07:23,716 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-07-09 22:07:23,716 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-07-09 22:07:23,716 INFO L87 Difference]: Start difference. First operand 1296 states and 2624 transitions. Second operand has 6 states, 6 states have (on average 12.666666666666666) internal successors, (76), 6 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 22:07:23,798 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 22:07:23,798 INFO L93 Difference]: Finished difference Result 2172 states and 4591 transitions. [2021-07-09 22:07:23,798 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-07-09 22:07:23,798 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 12.666666666666666) internal successors, (76), 6 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 76 [2021-07-09 22:07:23,798 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 22:07:23,801 INFO L225 Difference]: With dead ends: 2172 [2021-07-09 22:07:23,801 INFO L226 Difference]: Without dead ends: 1278 [2021-07-09 22:07:23,801 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 72.3ms TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2021-07-09 22:07:23,803 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1278 states. [2021-07-09 22:07:23,814 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1278 to 1182. [2021-07-09 22:07:23,815 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1182 states, 1152 states have (on average 2.111111111111111) internal successors, (2432), 1181 states have internal predecessors, (2432), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 22:07:23,817 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1182 states to 1182 states and 2432 transitions. [2021-07-09 22:07:23,817 INFO L78 Accepts]: Start accepts. Automaton has 1182 states and 2432 transitions. Word has length 76 [2021-07-09 22:07:23,817 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 22:07:23,817 INFO L482 AbstractCegarLoop]: Abstraction has 1182 states and 2432 transitions. [2021-07-09 22:07:23,817 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 12.666666666666666) internal successors, (76), 6 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 22:07:23,817 INFO L276 IsEmpty]: Start isEmpty. Operand 1182 states and 2432 transitions. [2021-07-09 22:07:23,819 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2021-07-09 22:07:23,819 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 22:07:23,819 INFO L508 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, 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, 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, 1, 1] [2021-07-09 22:07:23,819 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-07-09 22:07:23,819 INFO L430 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 22:07:23,819 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 22:07:23,819 INFO L82 PathProgramCache]: Analyzing trace with hash 1803952424, now seen corresponding path program 1 times [2021-07-09 22:07:23,820 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 22:07:23,820 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [87515280] [2021-07-09 22:07:23,820 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 22:07:23,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 22:07:23,921 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 22:07:23,921 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-09 22:07:23,921 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 22:07:23,922 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-09 22:07:23,924 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 22:07:23,924 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-07-09 22:07:23,928 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 22:07:23,930 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-07-09 22:07:23,936 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 22:07:23,937 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-07-09 22:07:23,946 INFO L142 QuantifierPusher]: treesize reduction 9, result has 72.7 percent of original size [2021-07-09 22:07:23,947 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-07-09 22:07:23,974 INFO L142 QuantifierPusher]: treesize reduction 37, result has 51.9 percent of original size [2021-07-09 22:07:23,975 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 40 [2021-07-09 22:07:23,999 INFO L142 QuantifierPusher]: treesize reduction 37, result has 53.8 percent of original size [2021-07-09 22:07:24,000 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-07-09 22:07:24,035 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 22:07:24,036 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-07-09 22:07:24,049 INFO L142 QuantifierPusher]: treesize reduction 19, result has 76.3 percent of original size [2021-07-09 22:07:24,050 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-07-09 22:07:24,067 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-07-09 22:07:24,067 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-07-09 22:07:24,082 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 22:07:24,082 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-07-09 22:07:24,091 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 22:07:24,091 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-07-09 22:07:24,108 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 22:07:24,109 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-09 22:07:24,109 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 22:07:24,109 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 22:07:24,109 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [87515280] [2021-07-09 22:07:24,109 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [87515280] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 22:07:24,109 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 22:07:24,110 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2021-07-09 22:07:24,110 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [560617584] [2021-07-09 22:07:24,110 INFO L462 AbstractCegarLoop]: Interpolant automaton has 14 states [2021-07-09 22:07:24,110 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 22:07:24,110 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-07-09 22:07:24,110 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=140, Unknown=0, NotChecked=0, Total=182 [2021-07-09 22:07:24,110 INFO L87 Difference]: Start difference. First operand 1182 states and 2432 transitions. Second operand has 14 states, 14 states have (on average 5.5) internal successors, (77), 14 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 22:07:24,386 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 22:07:24,386 INFO L93 Difference]: Finished difference Result 1724 states and 3565 transitions. [2021-07-09 22:07:24,387 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-07-09 22:07:24,387 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 5.5) internal successors, (77), 14 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 77 [2021-07-09 22:07:24,387 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 22:07:24,389 INFO L225 Difference]: With dead ends: 1724 [2021-07-09 22:07:24,389 INFO L226 Difference]: Without dead ends: 1286 [2021-07-09 22:07:24,390 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 49 ImplicationChecksByTransitivity, 244.2ms TimeCoverageRelationStatistics Valid=82, Invalid=224, Unknown=0, NotChecked=0, Total=306 [2021-07-09 22:07:24,392 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1286 states. [2021-07-09 22:07:24,402 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1286 to 1166. [2021-07-09 22:07:24,404 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1166 states, 1136 states have (on average 2.1153169014084505) internal successors, (2403), 1165 states have internal predecessors, (2403), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 22:07:24,406 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1166 states to 1166 states and 2403 transitions. [2021-07-09 22:07:24,406 INFO L78 Accepts]: Start accepts. Automaton has 1166 states and 2403 transitions. Word has length 77 [2021-07-09 22:07:24,406 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 22:07:24,406 INFO L482 AbstractCegarLoop]: Abstraction has 1166 states and 2403 transitions. [2021-07-09 22:07:24,406 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 14 states, 14 states have (on average 5.5) internal successors, (77), 14 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 22:07:24,406 INFO L276 IsEmpty]: Start isEmpty. Operand 1166 states and 2403 transitions. [2021-07-09 22:07:24,408 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2021-07-09 22:07:24,408 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 22:07:24,408 INFO L508 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, 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, 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, 1, 1] [2021-07-09 22:07:24,408 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-07-09 22:07:24,408 INFO L430 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 22:07:24,408 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 22:07:24,408 INFO L82 PathProgramCache]: Analyzing trace with hash 585972354, now seen corresponding path program 2 times [2021-07-09 22:07:24,409 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 22:07:24,409 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1728004042] [2021-07-09 22:07:24,409 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 22:07:24,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 22:07:24,446 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 22:07:24,446 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-09 22:07:24,447 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 22:07:24,447 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-09 22:07:24,449 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 22:07:24,449 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-09 22:07:24,452 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 22:07:24,452 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-09 22:07:24,456 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.8 percent of original size [2021-07-09 22:07:24,457 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-07-09 22:07:24,468 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 22:07:24,468 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-07-09 22:07:24,474 INFO L142 QuantifierPusher]: treesize reduction 11, result has 45.0 percent of original size [2021-07-09 22:07:24,475 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-07-09 22:07:24,482 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 22:07:24,482 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-09 22:07:24,482 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 22:07:24,482 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 22:07:24,482 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1728004042] [2021-07-09 22:07:24,483 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1728004042] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 22:07:24,483 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 22:07:24,483 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-07-09 22:07:24,483 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1438945182] [2021-07-09 22:07:24,483 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-07-09 22:07:24,483 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 22:07:24,483 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-07-09 22:07:24,483 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-07-09 22:07:24,484 INFO L87 Difference]: Start difference. First operand 1166 states and 2403 transitions. Second operand has 8 states, 8 states have (on average 9.625) internal successors, (77), 8 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 22:07:24,590 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 22:07:24,590 INFO L93 Difference]: Finished difference Result 740 states and 1313 transitions. [2021-07-09 22:07:24,590 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-07-09 22:07:24,590 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 9.625) internal successors, (77), 8 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 77 [2021-07-09 22:07:24,590 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 22:07:24,591 INFO L225 Difference]: With dead ends: 740 [2021-07-09 22:07:24,591 INFO L226 Difference]: Without dead ends: 332 [2021-07-09 22:07:24,591 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 96.9ms TimeCoverageRelationStatistics Valid=61, Invalid=149, Unknown=0, NotChecked=0, Total=210 [2021-07-09 22:07:24,592 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 332 states. [2021-07-09 22:07:24,594 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 332 to 332. [2021-07-09 22:07:24,595 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 332 states, 323 states have (on average 1.7120743034055728) internal successors, (553), 331 states have internal predecessors, (553), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 22:07:24,595 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 332 states to 332 states and 553 transitions. [2021-07-09 22:07:24,595 INFO L78 Accepts]: Start accepts. Automaton has 332 states and 553 transitions. Word has length 77 [2021-07-09 22:07:24,595 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 22:07:24,595 INFO L482 AbstractCegarLoop]: Abstraction has 332 states and 553 transitions. [2021-07-09 22:07:24,595 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 9.625) internal successors, (77), 8 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 22:07:24,595 INFO L276 IsEmpty]: Start isEmpty. Operand 332 states and 553 transitions. [2021-07-09 22:07:24,596 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2021-07-09 22:07:24,596 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 22:07:24,596 INFO L508 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, 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, 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, 1, 1, 1, 1, 1, 1] [2021-07-09 22:07:24,596 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-07-09 22:07:24,596 INFO L430 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 22:07:24,597 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 22:07:24,597 INFO L82 PathProgramCache]: Analyzing trace with hash -1177908122, now seen corresponding path program 1 times [2021-07-09 22:07:24,597 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 22:07:24,597 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1230224462] [2021-07-09 22:07:24,597 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 22:07:24,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 22:07:24,634 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 22:07:24,635 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-09 22:07:24,635 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 22:07:24,635 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-09 22:07:24,638 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 22:07:24,638 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-09 22:07:24,641 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-07-09 22:07:24,642 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-07-09 22:07:24,654 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 22:07:24,654 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-07-09 22:07:24,660 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 22:07:24,661 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-07-09 22:07:24,667 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 22:07:24,668 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-09 22:07:24,668 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 22:07:24,668 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 22:07:24,668 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1230224462] [2021-07-09 22:07:24,668 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1230224462] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 22:07:24,668 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 22:07:24,668 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-07-09 22:07:24,669 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1535569515] [2021-07-09 22:07:24,669 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-07-09 22:07:24,669 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 22:07:24,669 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-07-09 22:07:24,669 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-07-09 22:07:24,669 INFO L87 Difference]: Start difference. First operand 332 states and 553 transitions. Second operand has 7 states, 7 states have (on average 11.571428571428571) internal successors, (81), 7 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 22:07:24,739 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 22:07:24,739 INFO L93 Difference]: Finished difference Result 475 states and 845 transitions. [2021-07-09 22:07:24,739 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-07-09 22:07:24,740 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.571428571428571) internal successors, (81), 7 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 81 [2021-07-09 22:07:24,740 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 22:07:24,740 INFO L225 Difference]: With dead ends: 475 [2021-07-09 22:07:24,740 INFO L226 Difference]: Without dead ends: 240 [2021-07-09 22:07:24,740 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 74.5ms TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2021-07-09 22:07:24,741 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 240 states. [2021-07-09 22:07:24,742 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 240 to 240. [2021-07-09 22:07:24,743 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 240 states, 231 states have (on average 1.7878787878787878) internal successors, (413), 239 states have internal predecessors, (413), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 22:07:24,743 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 240 states to 240 states and 413 transitions. [2021-07-09 22:07:24,743 INFO L78 Accepts]: Start accepts. Automaton has 240 states and 413 transitions. Word has length 81 [2021-07-09 22:07:24,743 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 22:07:24,743 INFO L482 AbstractCegarLoop]: Abstraction has 240 states and 413 transitions. [2021-07-09 22:07:24,743 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 11.571428571428571) internal successors, (81), 7 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 22:07:24,743 INFO L276 IsEmpty]: Start isEmpty. Operand 240 states and 413 transitions. [2021-07-09 22:07:24,744 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2021-07-09 22:07:24,744 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 22:07:24,744 INFO L508 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, 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, 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, 1, 1, 1, 1, 1, 1] [2021-07-09 22:07:24,744 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-07-09 22:07:24,744 INFO L430 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 22:07:24,745 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 22:07:24,745 INFO L82 PathProgramCache]: Analyzing trace with hash 307187350, now seen corresponding path program 2 times [2021-07-09 22:07:24,745 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 22:07:24,745 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [548147777] [2021-07-09 22:07:24,745 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 22:07:24,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-07-09 22:07:24,769 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-07-09 22:07:24,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-07-09 22:07:24,801 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-07-09 22:07:24,828 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-07-09 22:07:24,828 INFO L609 BasicCegarLoop]: Counterexample might be feasible [2021-07-09 22:07:24,829 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-07-09 22:07:24,829 INFO L301 ceAbstractionStarter]: Result for error location ULTIMATE.start was UNSAFE (2/2) [2021-07-09 22:07:24,830 INFO L247 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-07-09 22:07:24,921 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.07 10:07:24 BasicIcfg [2021-07-09 22:07:24,922 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-07-09 22:07:24,922 INFO L168 Benchmark]: Toolchain (without parser) took 9340.76 ms. Allocated memory was 186.6 MB in the beginning and 618.7 MB in the end (delta: 432.0 MB). Free memory was 148.9 MB in the beginning and 372.1 MB in the end (delta: -223.2 MB). Peak memory consumption was 209.7 MB. Max. memory is 8.0 GB. [2021-07-09 22:07:24,922 INFO L168 Benchmark]: CDTParser took 0.42 ms. Allocated memory is still 186.6 MB. Free memory is still 167.6 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-07-09 22:07:24,922 INFO L168 Benchmark]: CACSL2BoogieTranslator took 489.35 ms. Allocated memory is still 186.6 MB. Free memory was 148.7 MB in the beginning and 156.9 MB in the end (delta: -8.2 MB). Peak memory consumption was 11.5 MB. Max. memory is 8.0 GB. [2021-07-09 22:07:24,923 INFO L168 Benchmark]: Boogie Procedure Inliner took 68.35 ms. Allocated memory is still 186.6 MB. Free memory was 156.9 MB in the beginning and 154.2 MB in the end (delta: 2.6 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. [2021-07-09 22:07:24,923 INFO L168 Benchmark]: Boogie Preprocessor took 34.32 ms. Allocated memory is still 186.6 MB. Free memory was 154.2 MB in the beginning and 152.1 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2021-07-09 22:07:24,923 INFO L168 Benchmark]: RCFGBuilder took 1248.56 ms. Allocated memory was 186.6 MB in the beginning and 246.4 MB in the end (delta: 59.8 MB). Free memory was 152.1 MB in the beginning and 214.7 MB in the end (delta: -62.6 MB). Peak memory consumption was 96.8 MB. Max. memory is 8.0 GB. [2021-07-09 22:07:24,923 INFO L168 Benchmark]: TraceAbstraction took 7495.66 ms. Allocated memory was 246.4 MB in the beginning and 618.7 MB in the end (delta: 372.2 MB). Free memory was 214.2 MB in the beginning and 372.1 MB in the end (delta: -157.9 MB). Peak memory consumption was 214.9 MB. Max. memory is 8.0 GB. [2021-07-09 22:07:24,923 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.42 ms. Allocated memory is still 186.6 MB. Free memory is still 167.6 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 489.35 ms. Allocated memory is still 186.6 MB. Free memory was 148.7 MB in the beginning and 156.9 MB in the end (delta: -8.2 MB). Peak memory consumption was 11.5 MB. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 68.35 ms. Allocated memory is still 186.6 MB. Free memory was 156.9 MB in the beginning and 154.2 MB in the end (delta: 2.6 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 34.32 ms. Allocated memory is still 186.6 MB. Free memory was 154.2 MB in the beginning and 152.1 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 1248.56 ms. Allocated memory was 186.6 MB in the beginning and 246.4 MB in the end (delta: 59.8 MB). Free memory was 152.1 MB in the beginning and 214.7 MB in the end (delta: -62.6 MB). Peak memory consumption was 96.8 MB. Max. memory is 8.0 GB. * TraceAbstraction took 7495.66 ms. Allocated memory was 246.4 MB in the beginning and 618.7 MB in the end (delta: 372.2 MB). Free memory was 214.2 MB in the beginning and 372.1 MB in the end (delta: -157.9 MB). Peak memory consumption was 214.9 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Independence relation benchmarks ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 18814, positive: 17833, positive conditional: 17833, positive unconditional: 0, negative: 981, negative conditional: 981, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 18310, positive: 17833, positive conditional: 0, positive unconditional: 17833, negative: 477, negative conditional: 0, negative unconditional: 477, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 692, positive: 678, positive conditional: 0, positive unconditional: 678, negative: 14, negative conditional: 0, negative unconditional: 14, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 692, positive: 677, positive conditional: 0, positive unconditional: 677, negative: 15, negative conditional: 0, negative unconditional: 15, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 15, positive: 1, positive conditional: 0, positive unconditional: 1, negative: 14, negative conditional: 0, negative unconditional: 14, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 151, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 149, negative conditional: 0, negative unconditional: 149, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 18310, positive: 17155, positive conditional: 0, positive unconditional: 17155, negative: 463, negative conditional: 0, negative unconditional: 463, unknown: 692, unknown conditional: 0, unknown unconditional: 692] , Statistics on independence cache: Total cache size (in pairs): 692, Positive cache size: 678, Positive conditional cache size: 0, Positive unconditional cache size: 678, Negative cache size: 14, Negative conditional cache size: 0, Negative unconditional cache size: 14, Independence queries for same thread: 504 - StatisticsResult: Independence relation benchmarks ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 31257, positive: 28866, positive conditional: 28866, positive unconditional: 0, negative: 2391, negative conditional: 2391, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 30263, positive: 28866, positive conditional: 0, positive unconditional: 28866, negative: 1397, negative conditional: 0, negative unconditional: 1397, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 800, positive: 769, positive conditional: 0, positive unconditional: 769, negative: 31, negative conditional: 0, negative unconditional: 31, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 800, positive: 765, positive conditional: 0, positive unconditional: 765, negative: 35, negative conditional: 0, negative unconditional: 35, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 35, positive: 4, positive conditional: 0, positive unconditional: 4, negative: 31, negative conditional: 0, negative unconditional: 31, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 298, positive: 5, positive conditional: 0, positive unconditional: 5, negative: 294, negative conditional: 0, negative unconditional: 294, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 30263, positive: 28097, positive conditional: 0, positive unconditional: 28097, negative: 1366, negative conditional: 0, negative unconditional: 1366, unknown: 800, unknown conditional: 0, unknown unconditional: 800] , Statistics on independence cache: Total cache size (in pairs): 800, Positive cache size: 769, Positive conditional cache size: 0, Positive unconditional cache size: 769, Negative cache size: 31, Negative conditional cache size: 0, Negative unconditional cache size: 31, Independence queries for same thread: 994 - PositiveResult [Line: 18]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - CounterExampleResult [Line: 18]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L709] 0 int __unbuffered_cnt = 0; VAL [__unbuffered_cnt=0] [L711] 0 int __unbuffered_p2_EAX = 0; VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0] [L712] 0 _Bool main$tmp_guard0; VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, main$tmp_guard0=0] [L713] 0 _Bool main$tmp_guard1; VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, main$tmp_guard0=0, main$tmp_guard1=0] [L715] 0 int x = 0; VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0] [L717] 0 int y = 0; VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y=0] [L718] 0 _Bool y$flush_delayed; VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y=0, y$flush_delayed=0] [L719] 0 int y$mem_tmp; VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0] [L720] 0 _Bool y$r_buff0_thd0; VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0] [L721] 0 _Bool y$r_buff0_thd1; VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0] [L722] 0 _Bool y$r_buff0_thd2; VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0] [L723] 0 _Bool y$r_buff0_thd3; VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=0] [L724] 0 _Bool y$r_buff1_thd0; VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff1_thd0=0] [L725] 0 _Bool y$r_buff1_thd1; VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0] [L726] 0 _Bool y$r_buff1_thd2; VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0] [L727] 0 _Bool y$r_buff1_thd3; VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0] [L728] 0 _Bool y$read_delayed; VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0] [L729] 0 int *y$read_delayed_var; VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}] [L730] 0 int y$w_buff0; VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=0] [L731] 0 _Bool y$w_buff0_used; VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=0, y$w_buff0_used=0] [L732] 0 int y$w_buff1; VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=0, y$w_buff0_used=0, y$w_buff1=0] [L733] 0 _Bool y$w_buff1_used; VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=0, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0] [L735] 0 int z = 0; VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=0, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, z=0] [L736] 0 _Bool weak$$choice0; VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=0, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, z=0] [L737] 0 _Bool weak$$choice2; VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=0, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, z=0] [L813] 0 pthread_t t1498; VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=0, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, z=0] [L814] FCALL, FORK 0 pthread_create(&t1498, ((void *)0), P0, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=0, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, z=0] [L815] 0 pthread_t t1499; VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=0, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, z=0] [L816] FCALL, FORK 0 pthread_create(&t1499, ((void *)0), P1, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=0, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, z=0] [L817] 0 pthread_t t1500; VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=0, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, z=0] [L818] FCALL, FORK 0 pthread_create(&t1500, ((void *)0), P2, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=0, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, z=0] [L776] 3 y$w_buff1 = y$w_buff0 [L777] 3 y$w_buff0 = 2 [L778] 3 y$w_buff1_used = y$w_buff0_used [L779] 3 y$w_buff0_used = (_Bool)1 [L18] COND FALSE 3 !(!expression) [L781] 3 y$r_buff1_thd0 = y$r_buff0_thd0 [L782] 3 y$r_buff1_thd1 = y$r_buff0_thd1 [L783] 3 y$r_buff1_thd2 = y$r_buff0_thd2 [L784] 3 y$r_buff1_thd3 = y$r_buff0_thd3 [L785] 3 y$r_buff0_thd3 = (_Bool)1 VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0, z=0] [L788] 3 __unbuffered_p2_EAX = z VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0, z=0] [L741] 1 z = 1 VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0, z=1] [L744] 1 x = 1 VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=1, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0, z=1] [L749] 1 __unbuffered_cnt = __unbuffered_cnt + 1 VAL [__unbuffered_cnt=1, __unbuffered_p2_EAX=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=1, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0, z=1] [L756] 2 x = 2 VAL [__unbuffered_cnt=1, __unbuffered_p2_EAX=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=2, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0, z=1] [L759] 2 y = 1 VAL [__unbuffered_cnt=1, __unbuffered_p2_EAX=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=2, y=1, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0, z=1] [L791] EXPR 3 y$w_buff0_used && y$r_buff0_thd3 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd3 ? y$w_buff1 : y) [L791] 3 y = y$w_buff0_used && y$r_buff0_thd3 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd3 ? y$w_buff1 : y) [L792] EXPR 3 y$w_buff0_used && y$r_buff0_thd3 ? (_Bool)0 : y$w_buff0_used [L792] 3 y$w_buff0_used = y$w_buff0_used && y$r_buff0_thd3 ? (_Bool)0 : y$w_buff0_used [L793] EXPR 3 y$w_buff0_used && y$r_buff0_thd3 || y$w_buff1_used && y$r_buff1_thd3 ? (_Bool)0 : y$w_buff1_used [L793] 3 y$w_buff1_used = y$w_buff0_used && y$r_buff0_thd3 || y$w_buff1_used && y$r_buff1_thd3 ? (_Bool)0 : y$w_buff1_used [L794] EXPR 3 y$w_buff0_used && y$r_buff0_thd3 ? (_Bool)0 : y$r_buff0_thd3 [L794] 3 y$r_buff0_thd3 = y$w_buff0_used && y$r_buff0_thd3 ? (_Bool)0 : y$r_buff0_thd3 [L795] EXPR 3 y$w_buff0_used && y$r_buff0_thd3 || y$w_buff1_used && y$r_buff1_thd3 ? (_Bool)0 : y$r_buff1_thd3 [L795] 3 y$r_buff1_thd3 = y$w_buff0_used && y$r_buff0_thd3 || y$w_buff1_used && y$r_buff1_thd3 ? (_Bool)0 : y$r_buff1_thd3 [L762] EXPR 2 y$w_buff0_used && y$r_buff0_thd2 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd2 ? y$w_buff1 : y) [L762] EXPR 2 y$w_buff1_used && y$r_buff1_thd2 ? y$w_buff1 : y [L762] EXPR 2 y$w_buff0_used && y$r_buff0_thd2 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd2 ? y$w_buff1 : y) [L762] 2 y = y$w_buff0_used && y$r_buff0_thd2 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd2 ? y$w_buff1 : y) [L763] EXPR 2 y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : y$w_buff0_used [L763] 2 y$w_buff0_used = y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : y$w_buff0_used [L764] EXPR 2 y$w_buff0_used && y$r_buff0_thd2 || y$w_buff1_used && y$r_buff1_thd2 ? (_Bool)0 : y$w_buff1_used [L764] 2 y$w_buff1_used = y$w_buff0_used && y$r_buff0_thd2 || y$w_buff1_used && y$r_buff1_thd2 ? (_Bool)0 : y$w_buff1_used [L765] EXPR 2 y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : y$r_buff0_thd2 [L765] 2 y$r_buff0_thd2 = y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : y$r_buff0_thd2 [L766] EXPR 2 y$w_buff0_used && y$r_buff0_thd2 || y$w_buff1_used && y$r_buff1_thd2 ? (_Bool)0 : y$r_buff1_thd2 [L766] 2 y$r_buff1_thd2 = y$w_buff0_used && y$r_buff0_thd2 || y$w_buff1_used && y$r_buff1_thd2 ? (_Bool)0 : y$r_buff1_thd2 [L769] 2 __unbuffered_cnt = __unbuffered_cnt + 1 VAL [__unbuffered_cnt=2, __unbuffered_p2_EAX=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=2, y=2, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, z=1] [L798] 3 __unbuffered_cnt = __unbuffered_cnt + 1 VAL [__unbuffered_cnt=3, __unbuffered_p2_EAX=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=2, y=2, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, z=1] [L820] 0 main$tmp_guard0 = __unbuffered_cnt == 3 VAL [__unbuffered_cnt=3, __unbuffered_p2_EAX=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=2, y=2, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, z=1] [L3] COND FALSE 0 !(!cond) VAL [__unbuffered_cnt=3, __unbuffered_p2_EAX=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=2, y=2, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, z=1] [L824] EXPR 0 y$w_buff0_used && y$r_buff0_thd0 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd0 ? y$w_buff1 : y) [L824] EXPR 0 y$w_buff1_used && y$r_buff1_thd0 ? y$w_buff1 : y [L824] EXPR 0 y$w_buff0_used && y$r_buff0_thd0 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd0 ? y$w_buff1 : y) [L824] 0 y = y$w_buff0_used && y$r_buff0_thd0 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd0 ? y$w_buff1 : y) [L825] EXPR 0 y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$w_buff0_used [L825] 0 y$w_buff0_used = y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$w_buff0_used [L826] EXPR 0 y$w_buff0_used && y$r_buff0_thd0 || y$w_buff1_used && y$r_buff1_thd0 ? (_Bool)0 : y$w_buff1_used [L826] 0 y$w_buff1_used = y$w_buff0_used && y$r_buff0_thd0 || y$w_buff1_used && y$r_buff1_thd0 ? (_Bool)0 : y$w_buff1_used [L827] EXPR 0 y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$r_buff0_thd0 [L827] 0 y$r_buff0_thd0 = y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$r_buff0_thd0 [L828] EXPR 0 y$w_buff0_used && y$r_buff0_thd0 || y$w_buff1_used && y$r_buff1_thd0 ? (_Bool)0 : y$r_buff1_thd0 [L828] 0 y$r_buff1_thd0 = y$w_buff0_used && y$r_buff0_thd0 || y$w_buff1_used && y$r_buff1_thd0 ? (_Bool)0 : y$r_buff1_thd0 [L831] 0 weak$$choice0 = __VERIFIER_nondet_bool() [L832] 0 weak$$choice2 = __VERIFIER_nondet_bool() [L833] 0 y$flush_delayed = weak$$choice2 [L834] 0 y$mem_tmp = y [L835] EXPR 0 !y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y : (y$w_buff0_used && y$r_buff0_thd0 ? y$w_buff0 : y$w_buff1) [L835] 0 y = !y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y : (y$w_buff0_used && y$r_buff0_thd0 ? y$w_buff0 : y$w_buff1) [L836] EXPR 0 weak$$choice2 ? y$w_buff0 : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$w_buff0 : (y$w_buff0_used && y$r_buff0_thd0 ? y$w_buff0 : y$w_buff0)) [L836] 0 y$w_buff0 = weak$$choice2 ? y$w_buff0 : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$w_buff0 : (y$w_buff0_used && y$r_buff0_thd0 ? y$w_buff0 : y$w_buff0)) [L837] EXPR 0 weak$$choice2 ? y$w_buff1 : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$w_buff1 : (y$w_buff0_used && y$r_buff0_thd0 ? y$w_buff1 : y$w_buff1)) [L837] 0 y$w_buff1 = weak$$choice2 ? y$w_buff1 : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$w_buff1 : (y$w_buff0_used && y$r_buff0_thd0 ? y$w_buff1 : y$w_buff1)) [L838] EXPR 0 weak$$choice2 ? y$w_buff0_used : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$w_buff0_used : (y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$w_buff0_used)) [L838] 0 y$w_buff0_used = weak$$choice2 ? y$w_buff0_used : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$w_buff0_used : (y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$w_buff0_used)) [L839] EXPR 0 weak$$choice2 ? y$w_buff1_used : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$w_buff1_used : (y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : (_Bool)0)) [L839] 0 y$w_buff1_used = weak$$choice2 ? y$w_buff1_used : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$w_buff1_used : (y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : (_Bool)0)) [L840] EXPR 0 weak$$choice2 ? y$r_buff0_thd0 : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$r_buff0_thd0 : (y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$r_buff0_thd0)) [L840] 0 y$r_buff0_thd0 = weak$$choice2 ? y$r_buff0_thd0 : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$r_buff0_thd0 : (y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$r_buff0_thd0)) [L841] EXPR 0 weak$$choice2 ? y$r_buff1_thd0 : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$r_buff1_thd0 : (y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : (_Bool)0)) [L841] 0 y$r_buff1_thd0 = weak$$choice2 ? y$r_buff1_thd0 : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$r_buff1_thd0 : (y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : (_Bool)0)) [L842] 0 main$tmp_guard1 = !(x == 2 && y == 2 && __unbuffered_p2_EAX == 0) [L843] EXPR 0 y$flush_delayed ? y$mem_tmp : y [L843] 0 y = y$flush_delayed ? y$mem_tmp : y [L844] 0 y$flush_delayed = (_Bool)0 VAL [__unbuffered_cnt=3, __unbuffered_p2_EAX=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, weak$$choice0=49, weak$$choice2=255, x=2, y=2, y$flush_delayed=0, y$mem_tmp=2, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, z=1] [L18] COND TRUE 0 !expression VAL [__unbuffered_cnt=3, __unbuffered_p2_EAX=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, weak$$choice0=49, weak$$choice2=255, x=2, y=2, y$flush_delayed=0, y$mem_tmp=2, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, z=1] [L18] 0 reach_error() VAL [__unbuffered_cnt=3, __unbuffered_p2_EAX=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, weak$$choice0=49, weak$$choice2=255, x=2, y=2, y$flush_delayed=0, y$mem_tmp=2, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, z=1] - StatisticsResult: Ultimate Automizer benchmark data for errors in thread instance: P2Thread1of1ForFork0 with 1 thread instances CFG has 7 procedures, 131 locations, 6 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 931.3ms, OverallIterations: 1, TraceHistogramMax: 1, EmptinessCheckTime: 26.0ms, AutomataDifference: 84.1ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 521.6ms, PartialOrderReductionTime: 495.6ms, HoareTripleCheckerStatistics: 89 SDtfs, 35 SDslu, 26 SDs, 0 SdLazy, 3 SolverSat, 3 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 11.5ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 5.4ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=5016occurred in iteration=0, InterpolantAutomatonStates: 3, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 6.0ms AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 8.9ms SsaConstructionTime, 68.0ms SatisfiabilityAnalysisTime, 127.7ms InterpolantComputationTime, 55 NumberOfCodeBlocks, 55 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 54 ConstructedInterpolants, 0 QuantifiedInterpolants, 110 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 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 - StatisticsResult: Ultimate Automizer benchmark data for errors in thread instance: ULTIMATE.start with 1 thread instances CFG has 7 procedures, 131 locations, 6 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 6365.3ms, OverallIterations: 14, TraceHistogramMax: 1, EmptinessCheckTime: 67.7ms, AutomataDifference: 2757.8ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 587.7ms, PartialOrderReductionTime: 586.2ms, HoareTripleCheckerStatistics: 1622 SDtfs, 2452 SDslu, 6509 SDs, 0 SdLazy, 966 SolverSat, 190 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 828.7ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 197 GetRequests, 29 SyntacticMatches, 1 SemanticMatches, 167 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 339 ImplicationChecksByTransitivity, 1939.8ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=8544occurred in iteration=0, InterpolantAutomatonStates: 147, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 859.2ms AutomataMinimizationTime, 13 MinimizatonAttempts, 693 StatesRemovedByMinimization, 8 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 32.8ms SsaConstructionTime, 456.0ms SatisfiabilityAnalysisTime, 1454.7ms InterpolantComputationTime, 1030 NumberOfCodeBlocks, 1030 NumberOfCodeBlocksAsserted, 14 NumberOfCheckSat, 936 ConstructedInterpolants, 0 QuantifiedInterpolants, 4837 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 13 InterpolantComputations, 13 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...