/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe-keepdead.epf -i ../../../trunk/examples/svcomp/pthread-wmm/safe029_pso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.2.0-e5469eb [2021-01-20 21:24:27,429 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-01-20 21:24:27,432 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-01-20 21:24:27,467 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-01-20 21:24:27,468 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-01-20 21:24:27,469 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-01-20 21:24:27,471 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-01-20 21:24:27,473 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-01-20 21:24:27,475 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-01-20 21:24:27,476 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-01-20 21:24:27,478 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-01-20 21:24:27,479 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-01-20 21:24:27,480 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-01-20 21:24:27,481 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-01-20 21:24:27,482 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-01-20 21:24:27,484 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-01-20 21:24:27,485 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-01-20 21:24:27,486 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-01-20 21:24:27,488 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-01-20 21:24:27,491 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-01-20 21:24:27,492 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-01-20 21:24:27,494 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-01-20 21:24:27,496 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-01-20 21:24:27,497 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-01-20 21:24:27,500 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-01-20 21:24:27,500 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-01-20 21:24:27,501 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-01-20 21:24:27,502 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-01-20 21:24:27,502 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-01-20 21:24:27,504 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-01-20 21:24:27,504 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-01-20 21:24:27,505 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-01-20 21:24:27,506 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-01-20 21:24:27,507 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-01-20 21:24:27,508 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-01-20 21:24:27,508 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-01-20 21:24:27,509 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-01-20 21:24:27,510 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-01-20 21:24:27,510 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-01-20 21:24:27,511 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-01-20 21:24:27,512 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-01-20 21:24:27,513 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-keepdead.epf [2021-01-20 21:24:27,541 INFO L113 SettingsManager]: Loading preferences was successful [2021-01-20 21:24:27,541 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-01-20 21:24:27,543 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-01-20 21:24:27,543 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-01-20 21:24:27,543 INFO L138 SettingsManager]: * Use SBE=true [2021-01-20 21:24:27,544 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-01-20 21:24:27,544 INFO L138 SettingsManager]: * sizeof long=4 [2021-01-20 21:24:27,544 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-01-20 21:24:27,545 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-01-20 21:24:27,545 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-01-20 21:24:27,545 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-01-20 21:24:27,546 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-01-20 21:24:27,546 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-01-20 21:24:27,546 INFO L138 SettingsManager]: * sizeof long double=12 [2021-01-20 21:24:27,546 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-01-20 21:24:27,547 INFO L138 SettingsManager]: * Use constant arrays=true [2021-01-20 21:24:27,547 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-01-20 21:24:27,547 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-01-20 21:24:27,548 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-01-20 21:24:27,548 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-01-20 21:24:27,548 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-01-20 21:24:27,548 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-01-20 21:24:27,549 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-01-20 21:24:27,549 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-01-20 21:24:27,549 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-01-20 21:24:27,549 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-01-20 21:24:27,550 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-01-20 21:24:27,550 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-01-20 21:24:27,550 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-01-20 21:24:27,550 INFO L138 SettingsManager]: * Remove dead ends from automaton=false [2021-01-20 21:24:27,551 INFO L138 SettingsManager]: * Minimization of abstraction=NONE [2021-01-20 21:24:27,551 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-01-20 21:24:27,964 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-01-20 21:24:27,997 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-01-20 21:24:28,000 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-01-20 21:24:28,001 INFO L271 PluginConnector]: Initializing CDTParser... [2021-01-20 21:24:28,003 INFO L275 PluginConnector]: CDTParser initialized [2021-01-20 21:24:28,005 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe029_pso.oepc.i [2021-01-20 21:24:28,081 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3a8dc35ef/f14eda734d7e492da863c20b8306199c/FLAGad517fd56 [2021-01-20 21:24:28,873 INFO L306 CDTParser]: Found 1 translation units. [2021-01-20 21:24:28,873 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe029_pso.oepc.i [2021-01-20 21:24:28,891 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3a8dc35ef/f14eda734d7e492da863c20b8306199c/FLAGad517fd56 [2021-01-20 21:24:29,126 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3a8dc35ef/f14eda734d7e492da863c20b8306199c [2021-01-20 21:24:29,129 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-01-20 21:24:29,132 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-01-20 21:24:29,133 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-01-20 21:24:29,134 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-01-20 21:24:29,137 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-01-20 21:24:29,138 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.01 09:24:29" (1/1) ... [2021-01-20 21:24:29,142 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4537a726 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 09:24:29, skipping insertion in model container [2021-01-20 21:24:29,142 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.01 09:24:29" (1/1) ... [2021-01-20 21:24:29,150 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-01-20 21:24:29,227 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-01-20 21:24:29,724 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-01-20 21:24:29,736 INFO L203 MainTranslator]: Completed pre-run [2021-01-20 21:24:29,808 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-01-20 21:24:29,943 INFO L208 MainTranslator]: Completed translation [2021-01-20 21:24:29,943 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 09:24:29 WrapperNode [2021-01-20 21:24:29,943 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-01-20 21:24:29,945 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-01-20 21:24:29,945 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-01-20 21:24:29,945 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-01-20 21:24:29,955 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 09:24:29" (1/1) ... [2021-01-20 21:24:29,975 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 09:24:29" (1/1) ... [2021-01-20 21:24:30,049 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-01-20 21:24:30,050 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-01-20 21:24:30,050 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-01-20 21:24:30,050 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-01-20 21:24:30,065 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 09:24:29" (1/1) ... [2021-01-20 21:24:30,065 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 09:24:29" (1/1) ... [2021-01-20 21:24:30,079 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 09:24:29" (1/1) ... [2021-01-20 21:24:30,080 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 09:24:29" (1/1) ... [2021-01-20 21:24:30,100 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 09:24:29" (1/1) ... [2021-01-20 21:24:30,110 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 09:24:29" (1/1) ... [2021-01-20 21:24:30,121 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 09:24:29" (1/1) ... [2021-01-20 21:24:30,126 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-01-20 21:24:30,128 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-01-20 21:24:30,128 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-01-20 21:24:30,128 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-01-20 21:24:30,129 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 09:24:29" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-01-20 21:24:30,219 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-01-20 21:24:30,219 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-01-20 21:24:30,219 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-01-20 21:24:30,220 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-01-20 21:24:30,220 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2021-01-20 21:24:30,220 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2021-01-20 21:24:30,220 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2021-01-20 21:24:30,220 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2021-01-20 21:24:30,221 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-01-20 21:24:30,221 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-01-20 21:24:30,221 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-01-20 21:24:30,221 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-01-20 21:24:30,223 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-01-20 21:24:33,010 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-01-20 21:24:33,010 INFO L298 CfgBuilder]: Removed 14 assume(true) statements. [2021-01-20 21:24:33,012 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.01 09:24:33 BoogieIcfgContainer [2021-01-20 21:24:33,013 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-01-20 21:24:33,016 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-01-20 21:24:33,016 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-01-20 21:24:33,020 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-01-20 21:24:33,020 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.01 09:24:29" (1/3) ... [2021-01-20 21:24:33,022 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2d2c03a5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.01 09:24:33, skipping insertion in model container [2021-01-20 21:24:33,022 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 09:24:29" (2/3) ... [2021-01-20 21:24:33,022 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2d2c03a5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.01 09:24:33, skipping insertion in model container [2021-01-20 21:24:33,022 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.01 09:24:33" (3/3) ... [2021-01-20 21:24:33,025 INFO L111 eAbstractionObserver]: Analyzing ICFG safe029_pso.oepc.i [2021-01-20 21:24:33,044 WARN L168 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-01-20 21:24:33,044 INFO L179 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-01-20 21:24:33,048 INFO L191 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2021-01-20 21:24:33,049 INFO L351 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-01-20 21:24:33,095 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:24:33,096 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:24:33,096 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:24:33,096 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:24:33,096 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:24:33,096 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:24:33,097 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:24:33,097 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:24:33,097 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_reach_error_#t~nondet2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:24:33,097 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_reach_error_#t~nondet2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:24:33,098 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:24:33,098 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:24:33,098 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_reach_error_#t~nondet2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:24:33,098 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_reach_error_#t~nondet2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:24:33,098 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:24:33,099 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:24:33,099 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_reach_error_#t~nondet2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:24:33,099 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_reach_error_#t~nondet2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:24:33,099 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_reach_error_#t~nondet2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:24:33,099 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:24:33,100 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_reach_error_#t~nondet2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:24:33,100 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:24:33,100 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_reach_error_#t~nondet2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:24:33,100 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_reach_error_#t~nondet2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:24:33,101 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_reach_error_#t~nondet2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:24:33,102 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:24:33,102 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_reach_error_#t~nondet2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:24:33,103 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:24:33,103 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:24:33,103 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:24:33,104 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:24:33,104 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:24:33,104 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:24:33,104 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:24:33,104 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:24:33,106 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:24:33,106 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:24:33,106 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:24:33,106 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:24:33,107 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:24:33,108 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:24:33,108 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:24:33,109 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:24:33,109 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:24:33,109 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:24:33,110 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:24:33,110 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:24:33,110 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:24:33,110 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:24:33,111 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:24:33,111 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:24:33,111 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:24:33,111 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:24:33,111 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:24:33,112 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:24:33,112 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:24:33,112 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:24:33,112 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:24:33,112 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:24:33,113 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:24:33,113 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:24:33,113 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:24:33,114 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:24:33,114 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:24:33,114 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:24:33,114 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:24:33,115 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:24:33,115 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:24:33,116 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:24:33,116 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:24:33,117 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:24:33,117 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:24:33,121 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:24:33,121 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:24:33,121 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:24:33,122 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:24:33,122 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:24:33,122 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:24:33,122 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:24:33,123 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:24:33,124 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_reach_error_#t~nondet2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:24:33,124 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:24:33,124 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_reach_error_#t~nondet2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:24:33,125 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:24:33,125 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:24:33,125 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:24:33,127 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:24:33,128 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:24:33,128 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:24:33,128 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:24:33,129 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:24:33,129 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:24:33,129 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:24:33,129 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:24:33,129 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:24:33,131 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:24:33,133 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-01-20 21:24:33,146 INFO L253 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2021-01-20 21:24:33,183 INFO L377 AbstractCegarLoop]: Interprodecural is true [2021-01-20 21:24:33,184 INFO L378 AbstractCegarLoop]: Hoare is true [2021-01-20 21:24:33,186 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-01-20 21:24:33,188 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-01-20 21:24:33,189 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-01-20 21:24:33,189 INFO L382 AbstractCegarLoop]: Difference is false [2021-01-20 21:24:33,189 INFO L383 AbstractCegarLoop]: Minimize is NONE [2021-01-20 21:24:33,193 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-01-20 21:24:33,205 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 87 places, 83 transitions, 176 flow [2021-01-20 21:24:33,308 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 2013 states, 2009 states have (on average 2.79641612742658) internal successors, (5618), 2012 states have internal predecessors, (5618), 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) [2021-01-20 21:24:33,319 INFO L276 IsEmpty]: Start isEmpty. Operand has 2013 states, 2009 states have (on average 2.79641612742658) internal successors, (5618), 2012 states have internal predecessors, (5618), 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) [2021-01-20 21:24:33,327 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2021-01-20 21:24:33,328 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 21:24:33,329 INFO L504 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] [2021-01-20 21:24:33,329 INFO L429 AbstractCegarLoop]: === Iteration 1 === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-20 21:24:33,335 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 21:24:33,335 INFO L82 PathProgramCache]: Analyzing trace with hash 1434486498, now seen corresponding path program 1 times [2021-01-20 21:24:33,346 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 21:24:33,346 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [358305631] [2021-01-20 21:24:33,346 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 21:24:33,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 21:24:33,683 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-20 21:24:33,684 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [358305631] [2021-01-20 21:24:33,685 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 21:24:33,685 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-01-20 21:24:33,686 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [135083856] [2021-01-20 21:24:33,691 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-01-20 21:24:33,692 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 21:24:33,707 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-01-20 21:24:33,708 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-01-20 21:24:33,717 INFO L87 Difference]: Start difference. First operand has 2013 states, 2009 states have (on average 2.79641612742658) internal successors, (5618), 2012 states have internal predecessors, (5618), 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 17.5) internal successors, (35), 3 states have internal predecessors, (35), 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) [2021-01-20 21:24:33,834 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 21:24:33,834 INFO L93 Difference]: Finished difference Result 1665 states and 4429 transitions. [2021-01-20 21:24:33,835 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-01-20 21:24:33,837 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 17.5) internal successors, (35), 3 states have internal predecessors, (35), 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 35 [2021-01-20 21:24:33,837 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 21:24:33,839 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-01-20 21:24:33,840 INFO L78 Accepts]: Start accepts. Automaton has 1665 states and 4429 transitions. Word has length 35 [2021-01-20 21:24:33,841 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 21:24:33,841 INFO L481 AbstractCegarLoop]: Abstraction has 1665 states and 4429 transitions. [2021-01-20 21:24:33,841 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 3 states, 2 states have (on average 17.5) internal successors, (35), 3 states have internal predecessors, (35), 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) [2021-01-20 21:24:33,842 INFO L276 IsEmpty]: Start isEmpty. Operand 1665 states and 4429 transitions. [2021-01-20 21:24:33,852 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2021-01-20 21:24:33,852 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 21:24:33,853 INFO L504 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] [2021-01-20 21:24:33,853 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-01-20 21:24:33,853 INFO L429 AbstractCegarLoop]: === Iteration 2 === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-20 21:24:33,854 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 21:24:33,854 INFO L82 PathProgramCache]: Analyzing trace with hash 2143713640, now seen corresponding path program 1 times [2021-01-20 21:24:33,854 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 21:24:33,855 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1479554331] [2021-01-20 21:24:33,855 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 21:24:34,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 21:24:34,264 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-20 21:24:34,265 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1479554331] [2021-01-20 21:24:34,265 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 21:24:34,265 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-01-20 21:24:34,266 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1037935258] [2021-01-20 21:24:34,271 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-01-20 21:24:34,271 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 21:24:34,272 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-01-20 21:24:34,273 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-01-20 21:24:34,274 INFO L87 Difference]: Start difference. First operand 1665 states and 4429 transitions. Second operand has 6 states, 6 states have (on average 8.666666666666666) internal successors, (52), 6 states have internal predecessors, (52), 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) [2021-01-20 21:24:34,547 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 21:24:34,547 INFO L93 Difference]: Finished difference Result 2337 states and 6195 transitions. [2021-01-20 21:24:34,548 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-01-20 21:24:34,548 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.666666666666666) internal successors, (52), 6 states have internal predecessors, (52), 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 52 [2021-01-20 21:24:34,549 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 21:24:34,550 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2021-01-20 21:24:34,551 INFO L78 Accepts]: Start accepts. Automaton has 2337 states and 6195 transitions. Word has length 52 [2021-01-20 21:24:34,552 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 21:24:34,554 INFO L481 AbstractCegarLoop]: Abstraction has 2337 states and 6195 transitions. [2021-01-20 21:24:34,554 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 8.666666666666666) internal successors, (52), 6 states have internal predecessors, (52), 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) [2021-01-20 21:24:34,555 INFO L276 IsEmpty]: Start isEmpty. Operand 2337 states and 6195 transitions. [2021-01-20 21:24:34,561 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2021-01-20 21:24:34,561 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 21:24:34,561 INFO L504 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] [2021-01-20 21:24:34,562 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-01-20 21:24:34,562 INFO L429 AbstractCegarLoop]: === Iteration 3 === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-20 21:24:34,564 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 21:24:34,564 INFO L82 PathProgramCache]: Analyzing trace with hash 1824209991, now seen corresponding path program 1 times [2021-01-20 21:24:34,565 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 21:24:34,565 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [43803452] [2021-01-20 21:24:34,565 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 21:24:34,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 21:24:34,976 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-20 21:24:34,977 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [43803452] [2021-01-20 21:24:34,977 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 21:24:34,977 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-01-20 21:24:34,977 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [363802250] [2021-01-20 21:24:34,978 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-01-20 21:24:34,978 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 21:24:34,979 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-01-20 21:24:34,979 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2021-01-20 21:24:34,980 INFO L87 Difference]: Start difference. First operand 2337 states and 6195 transitions. Second operand has 10 states, 10 states have (on average 5.4) internal successors, (54), 10 states have internal predecessors, (54), 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) [2021-01-20 21:24:35,488 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 21:24:35,489 INFO L93 Difference]: Finished difference Result 2937 states and 7751 transitions. [2021-01-20 21:24:35,490 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-01-20 21:24:35,490 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 5.4) internal successors, (54), 10 states have internal predecessors, (54), 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 54 [2021-01-20 21:24:35,491 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 21:24:35,492 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=101, Invalid=205, Unknown=0, NotChecked=0, Total=306 [2021-01-20 21:24:35,492 INFO L78 Accepts]: Start accepts. Automaton has 2937 states and 7751 transitions. Word has length 54 [2021-01-20 21:24:35,495 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 21:24:35,496 INFO L481 AbstractCegarLoop]: Abstraction has 2937 states and 7751 transitions. [2021-01-20 21:24:35,496 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 5.4) internal successors, (54), 10 states have internal predecessors, (54), 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) [2021-01-20 21:24:35,496 INFO L276 IsEmpty]: Start isEmpty. Operand 2937 states and 7751 transitions. [2021-01-20 21:24:35,503 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2021-01-20 21:24:35,503 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 21:24:35,503 INFO L504 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] [2021-01-20 21:24:35,503 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-01-20 21:24:35,504 INFO L429 AbstractCegarLoop]: === Iteration 4 === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-20 21:24:35,504 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 21:24:35,504 INFO L82 PathProgramCache]: Analyzing trace with hash 1558766927, now seen corresponding path program 1 times [2021-01-20 21:24:35,505 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 21:24:35,505 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1440232018] [2021-01-20 21:24:35,505 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 21:24:35,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 21:24:35,907 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-20 21:24:35,907 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1440232018] [2021-01-20 21:24:35,908 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 21:24:35,908 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-01-20 21:24:35,908 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [408095918] [2021-01-20 21:24:35,909 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-01-20 21:24:35,909 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 21:24:35,910 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-01-20 21:24:35,911 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2021-01-20 21:24:35,911 INFO L87 Difference]: Start difference. First operand 2937 states and 7751 transitions. Second operand has 10 states, 10 states have (on average 5.5) internal successors, (55), 10 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) [2021-01-20 21:24:36,417 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 21:24:36,418 INFO L93 Difference]: Finished difference Result 3257 states and 8557 transitions. [2021-01-20 21:24:36,418 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-01-20 21:24:36,419 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 5.5) internal successors, (55), 10 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 [2021-01-20 21:24:36,419 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 21:24:36,420 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=78, Invalid=162, Unknown=0, NotChecked=0, Total=240 [2021-01-20 21:24:36,420 INFO L78 Accepts]: Start accepts. Automaton has 3257 states and 8557 transitions. Word has length 55 [2021-01-20 21:24:36,421 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 21:24:36,421 INFO L481 AbstractCegarLoop]: Abstraction has 3257 states and 8557 transitions. [2021-01-20 21:24:36,421 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 5.5) internal successors, (55), 10 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) [2021-01-20 21:24:36,421 INFO L276 IsEmpty]: Start isEmpty. Operand 3257 states and 8557 transitions. [2021-01-20 21:24:36,425 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2021-01-20 21:24:36,426 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 21:24:36,426 INFO L504 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] [2021-01-20 21:24:36,426 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-01-20 21:24:36,426 INFO L429 AbstractCegarLoop]: === Iteration 5 === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-20 21:24:36,427 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 21:24:36,427 INFO L82 PathProgramCache]: Analyzing trace with hash -835687669, now seen corresponding path program 1 times [2021-01-20 21:24:36,427 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 21:24:36,427 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1761723993] [2021-01-20 21:24:36,428 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 21:24:36,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 21:24:36,555 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-20 21:24:36,556 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1761723993] [2021-01-20 21:24:36,556 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 21:24:36,556 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-01-20 21:24:36,556 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1813991198] [2021-01-20 21:24:36,557 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-01-20 21:24:36,557 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 21:24:36,557 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-01-20 21:24:36,557 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-01-20 21:24:36,558 INFO L87 Difference]: Start difference. First operand 3257 states and 8557 transitions. Second operand has 6 states, 6 states have (on average 9.333333333333334) internal successors, (56), 6 states have internal predecessors, (56), 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) [2021-01-20 21:24:36,734 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 21:24:36,734 INFO L93 Difference]: Finished difference Result 5971 states and 15470 transitions. [2021-01-20 21:24:36,734 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-01-20 21:24:36,735 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.333333333333334) internal successors, (56), 6 states have internal predecessors, (56), 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 56 [2021-01-20 21:24:36,735 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 21:24:36,736 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2021-01-20 21:24:36,736 INFO L78 Accepts]: Start accepts. Automaton has 5971 states and 15470 transitions. Word has length 56 [2021-01-20 21:24:36,736 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 21:24:36,736 INFO L481 AbstractCegarLoop]: Abstraction has 5971 states and 15470 transitions. [2021-01-20 21:24:36,737 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 9.333333333333334) internal successors, (56), 6 states have internal predecessors, (56), 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) [2021-01-20 21:24:36,737 INFO L276 IsEmpty]: Start isEmpty. Operand 5971 states and 15470 transitions. [2021-01-20 21:24:36,743 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2021-01-20 21:24:36,743 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 21:24:36,743 INFO L504 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] [2021-01-20 21:24:36,744 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-01-20 21:24:36,744 INFO L429 AbstractCegarLoop]: === Iteration 6 === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-20 21:24:36,744 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 21:24:36,744 INFO L82 PathProgramCache]: Analyzing trace with hash 2041769037, now seen corresponding path program 1 times [2021-01-20 21:24:36,745 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 21:24:36,745 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [187261436] [2021-01-20 21:24:36,745 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 21:24:36,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 21:24:36,985 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-20 21:24:36,986 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [187261436] [2021-01-20 21:24:36,987 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 21:24:36,987 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-01-20 21:24:36,987 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2100355156] [2021-01-20 21:24:36,989 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-01-20 21:24:36,989 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 21:24:36,990 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-01-20 21:24:36,990 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-01-20 21:24:36,990 INFO L87 Difference]: Start difference. First operand 5971 states and 15470 transitions. Second operand has 9 states, 9 states have (on average 6.333333333333333) internal successors, (57), 9 states have internal predecessors, (57), 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) [2021-01-20 21:24:37,391 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 21:24:37,391 INFO L93 Difference]: Finished difference Result 7549 states and 19567 transitions. [2021-01-20 21:24:37,391 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-01-20 21:24:37,392 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 6.333333333333333) internal successors, (57), 9 states have internal predecessors, (57), 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 57 [2021-01-20 21:24:37,393 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 21:24:37,394 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=73, Invalid=137, Unknown=0, NotChecked=0, Total=210 [2021-01-20 21:24:37,394 INFO L78 Accepts]: Start accepts. Automaton has 7549 states and 19567 transitions. Word has length 57 [2021-01-20 21:24:37,396 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 21:24:37,396 INFO L481 AbstractCegarLoop]: Abstraction has 7549 states and 19567 transitions. [2021-01-20 21:24:37,396 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 6.333333333333333) internal successors, (57), 9 states have internal predecessors, (57), 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) [2021-01-20 21:24:37,396 INFO L276 IsEmpty]: Start isEmpty. Operand 7549 states and 19567 transitions. [2021-01-20 21:24:37,407 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2021-01-20 21:24:37,407 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 21:24:37,407 INFO L504 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] [2021-01-20 21:24:37,407 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-01-20 21:24:37,407 INFO L429 AbstractCegarLoop]: === Iteration 7 === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-20 21:24:37,408 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 21:24:37,408 INFO L82 PathProgramCache]: Analyzing trace with hash -659197243, now seen corresponding path program 2 times [2021-01-20 21:24:37,408 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 21:24:37,408 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [766108559] [2021-01-20 21:24:37,409 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 21:24:37,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 21:24:37,858 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-20 21:24:37,858 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [766108559] [2021-01-20 21:24:37,859 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 21:24:37,859 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-01-20 21:24:37,859 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [162800488] [2021-01-20 21:24:37,860 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-01-20 21:24:37,860 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 21:24:37,860 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-01-20 21:24:37,861 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2021-01-20 21:24:37,862 INFO L87 Difference]: Start difference. First operand 7549 states and 19567 transitions. Second operand has 12 states, 12 states have (on average 4.75) internal successors, (57), 12 states have internal predecessors, (57), 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) [2021-01-20 21:24:38,550 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 21:24:38,551 INFO L93 Difference]: Finished difference Result 8485 states and 21915 transitions. [2021-01-20 21:24:38,551 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-01-20 21:24:38,552 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 4.75) internal successors, (57), 12 states have internal predecessors, (57), 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 57 [2021-01-20 21:24:38,552 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 21:24:38,553 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 108 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=171, Invalid=429, Unknown=0, NotChecked=0, Total=600 [2021-01-20 21:24:38,553 INFO L78 Accepts]: Start accepts. Automaton has 8485 states and 21915 transitions. Word has length 57 [2021-01-20 21:24:38,553 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 21:24:38,553 INFO L481 AbstractCegarLoop]: Abstraction has 8485 states and 21915 transitions. [2021-01-20 21:24:38,555 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 12 states, 12 states have (on average 4.75) internal successors, (57), 12 states have internal predecessors, (57), 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) [2021-01-20 21:24:38,555 INFO L276 IsEmpty]: Start isEmpty. Operand 8485 states and 21915 transitions. [2021-01-20 21:24:38,574 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2021-01-20 21:24:38,574 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 21:24:38,574 INFO L504 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] [2021-01-20 21:24:38,575 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-01-20 21:24:38,576 INFO L429 AbstractCegarLoop]: === Iteration 8 === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-20 21:24:38,576 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 21:24:38,576 INFO L82 PathProgramCache]: Analyzing trace with hash -932228822, now seen corresponding path program 1 times [2021-01-20 21:24:38,577 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 21:24:38,577 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1410289411] [2021-01-20 21:24:38,578 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 21:24:38,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 21:24:38,783 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-20 21:24:38,785 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1410289411] [2021-01-20 21:24:38,786 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 21:24:38,786 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-01-20 21:24:38,786 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [972288512] [2021-01-20 21:24:38,787 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-01-20 21:24:38,787 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 21:24:38,790 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-01-20 21:24:38,790 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-01-20 21:24:38,791 INFO L87 Difference]: Start difference. First operand 8485 states and 21915 transitions. Second operand has 6 states, 6 states have (on average 9.666666666666666) internal successors, (58), 6 states have internal predecessors, (58), 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) [2021-01-20 21:24:38,915 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 21:24:38,915 INFO L93 Difference]: Finished difference Result 3256 states and 8070 transitions. [2021-01-20 21:24:38,916 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-01-20 21:24:38,916 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.666666666666666) internal successors, (58), 6 states have internal predecessors, (58), 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 58 [2021-01-20 21:24:38,916 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 21:24:38,917 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2021-01-20 21:24:38,917 INFO L78 Accepts]: Start accepts. Automaton has 3256 states and 8070 transitions. Word has length 58 [2021-01-20 21:24:38,917 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 21:24:38,919 INFO L481 AbstractCegarLoop]: Abstraction has 3256 states and 8070 transitions. [2021-01-20 21:24:38,921 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 9.666666666666666) internal successors, (58), 6 states have internal predecessors, (58), 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) [2021-01-20 21:24:38,921 INFO L276 IsEmpty]: Start isEmpty. Operand 3256 states and 8070 transitions. [2021-01-20 21:24:38,926 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2021-01-20 21:24:38,927 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 21:24:38,927 INFO L504 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] [2021-01-20 21:24:38,927 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-01-20 21:24:38,927 INFO L429 AbstractCegarLoop]: === Iteration 9 === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-20 21:24:38,927 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 21:24:38,928 INFO L82 PathProgramCache]: Analyzing trace with hash -1890529029, now seen corresponding path program 1 times [2021-01-20 21:24:38,929 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 21:24:38,929 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1238758164] [2021-01-20 21:24:38,929 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 21:24:38,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 21:24:39,084 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-20 21:24:39,084 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1238758164] [2021-01-20 21:24:39,084 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 21:24:39,084 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-01-20 21:24:39,086 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1297074505] [2021-01-20 21:24:39,086 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-01-20 21:24:39,088 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 21:24:39,089 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-01-20 21:24:39,089 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-01-20 21:24:39,089 INFO L87 Difference]: Start difference. First operand 3256 states and 8070 transitions. Second operand has 7 states, 7 states have (on average 8.428571428571429) internal successors, (59), 7 states have internal predecessors, (59), 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) [2021-01-20 21:24:39,291 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 21:24:39,292 INFO L93 Difference]: Finished difference Result 1516 states and 3655 transitions. [2021-01-20 21:24:39,292 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-01-20 21:24:39,292 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.428571428571429) internal successors, (59), 7 states have internal predecessors, (59), 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 59 [2021-01-20 21:24:39,292 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 21:24:39,293 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=73, Invalid=137, Unknown=0, NotChecked=0, Total=210 [2021-01-20 21:24:39,293 INFO L78 Accepts]: Start accepts. Automaton has 1516 states and 3655 transitions. Word has length 59 [2021-01-20 21:24:39,293 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 21:24:39,293 INFO L481 AbstractCegarLoop]: Abstraction has 1516 states and 3655 transitions. [2021-01-20 21:24:39,294 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 8.428571428571429) internal successors, (59), 7 states have internal predecessors, (59), 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) [2021-01-20 21:24:39,294 INFO L276 IsEmpty]: Start isEmpty. Operand 1516 states and 3655 transitions. [2021-01-20 21:24:39,297 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2021-01-20 21:24:39,297 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 21:24:39,298 INFO L504 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] [2021-01-20 21:24:39,299 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-01-20 21:24:39,299 INFO L429 AbstractCegarLoop]: === Iteration 10 === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-20 21:24:39,300 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 21:24:39,300 INFO L82 PathProgramCache]: Analyzing trace with hash -1098302246, now seen corresponding path program 1 times [2021-01-20 21:24:39,300 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 21:24:39,305 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1937490783] [2021-01-20 21:24:39,305 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 21:24:39,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 21:24:39,678 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-20 21:24:39,678 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1937490783] [2021-01-20 21:24:39,678 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 21:24:39,679 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-01-20 21:24:39,679 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1382108216] [2021-01-20 21:24:39,679 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-01-20 21:24:39,679 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 21:24:39,680 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-01-20 21:24:39,680 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=99, Unknown=0, NotChecked=0, Total=132 [2021-01-20 21:24:39,681 INFO L87 Difference]: Start difference. First operand 1516 states and 3655 transitions. Second operand has 12 states, 12 states have (on average 5.166666666666667) internal successors, (62), 12 states have internal predecessors, (62), 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) [2021-01-20 21:24:39,952 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 21:24:39,952 INFO L93 Difference]: Finished difference Result 2318 states and 5523 transitions. [2021-01-20 21:24:39,953 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-01-20 21:24:39,953 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 5.166666666666667) internal successors, (62), 12 states have internal predecessors, (62), 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 62 [2021-01-20 21:24:39,954 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 21:24:39,955 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=74, Invalid=166, Unknown=0, NotChecked=0, Total=240 [2021-01-20 21:24:39,955 INFO L78 Accepts]: Start accepts. Automaton has 2318 states and 5523 transitions. Word has length 62 [2021-01-20 21:24:39,955 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 21:24:39,955 INFO L481 AbstractCegarLoop]: Abstraction has 2318 states and 5523 transitions. [2021-01-20 21:24:39,955 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 12 states, 12 states have (on average 5.166666666666667) internal successors, (62), 12 states have internal predecessors, (62), 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) [2021-01-20 21:24:39,956 INFO L276 IsEmpty]: Start isEmpty. Operand 2318 states and 5523 transitions. [2021-01-20 21:24:39,964 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2021-01-20 21:24:39,964 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 21:24:39,964 INFO L504 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] [2021-01-20 21:24:39,964 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-01-20 21:24:39,964 INFO L429 AbstractCegarLoop]: === Iteration 11 === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-20 21:24:39,965 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 21:24:39,965 INFO L82 PathProgramCache]: Analyzing trace with hash 800237210, now seen corresponding path program 2 times [2021-01-20 21:24:39,966 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 21:24:39,966 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [452972549] [2021-01-20 21:24:39,966 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 21:24:40,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-01-20 21:24:40,022 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-01-20 21:24:40,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-01-20 21:24:40,064 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-01-20 21:24:40,116 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-01-20 21:24:40,117 INFO L605 BasicCegarLoop]: Counterexample might be feasible [2021-01-20 21:24:40,117 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-01-20 21:24:40,290 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.01 09:24:40 BasicIcfg [2021-01-20 21:24:40,290 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-01-20 21:24:40,293 INFO L168 Benchmark]: Toolchain (without parser) took 11160.14 ms. Allocated memory was 302.0 MB in the beginning and 488.6 MB in the end (delta: 186.6 MB). Free memory was 275.7 MB in the beginning and 307.9 MB in the end (delta: -32.2 MB). Peak memory consumption was 156.9 MB. Max. memory is 16.0 GB. [2021-01-20 21:24:40,293 INFO L168 Benchmark]: CDTParser took 0.28 ms. Allocated memory is still 302.0 MB. Free memory is still 271.9 MB. There was no memory consumed. Max. memory is 16.0 GB. [2021-01-20 21:24:40,294 INFO L168 Benchmark]: CACSL2BoogieTranslator took 810.73 ms. Allocated memory is still 302.0 MB. Free memory was 275.5 MB in the beginning and 268.8 MB in the end (delta: 6.7 MB). Peak memory consumption was 27.5 MB. Max. memory is 16.0 GB. [2021-01-20 21:24:40,294 INFO L168 Benchmark]: Boogie Procedure Inliner took 104.33 ms. Allocated memory is still 302.0 MB. Free memory was 268.4 MB in the beginning and 265.9 MB in the end (delta: 2.5 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.0 GB. [2021-01-20 21:24:40,297 INFO L168 Benchmark]: Boogie Preprocessor took 76.86 ms. Allocated memory is still 302.0 MB. Free memory was 265.9 MB in the beginning and 263.8 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-01-20 21:24:40,298 INFO L168 Benchmark]: RCFGBuilder took 2885.25 ms. Allocated memory was 302.0 MB in the beginning and 377.5 MB in the end (delta: 75.5 MB). Free memory was 263.8 MB in the beginning and 344.3 MB in the end (delta: -80.6 MB). Peak memory consumption was 95.0 MB. Max. memory is 16.0 GB. [2021-01-20 21:24:40,299 INFO L168 Benchmark]: TraceAbstraction took 7273.78 ms. Allocated memory was 377.5 MB in the beginning and 488.6 MB in the end (delta: 111.1 MB). Free memory was 343.3 MB in the beginning and 307.9 MB in the end (delta: 35.4 MB). Peak memory consumption was 147.6 MB. Max. memory is 16.0 GB. [2021-01-20 21:24:40,306 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28 ms. Allocated memory is still 302.0 MB. Free memory is still 271.9 MB. There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 810.73 ms. Allocated memory is still 302.0 MB. Free memory was 275.5 MB in the beginning and 268.8 MB in the end (delta: 6.7 MB). Peak memory consumption was 27.5 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 104.33 ms. Allocated memory is still 302.0 MB. Free memory was 268.4 MB in the beginning and 265.9 MB in the end (delta: 2.5 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 76.86 ms. Allocated memory is still 302.0 MB. Free memory was 265.9 MB in the beginning and 263.8 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * RCFGBuilder took 2885.25 ms. Allocated memory was 302.0 MB in the beginning and 377.5 MB in the end (delta: 75.5 MB). Free memory was 263.8 MB in the beginning and 344.3 MB in the end (delta: -80.6 MB). Peak memory consumption was 95.0 MB. Max. memory is 16.0 GB. * TraceAbstraction took 7273.78 ms. Allocated memory was 377.5 MB in the beginning and 488.6 MB in the end (delta: 111.1 MB). Free memory was 343.3 MB in the beginning and 307.9 MB in the end (delta: 35.4 MB). Peak memory consumption was 147.6 MB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 17]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L708] 0 int __unbuffered_cnt = 0; VAL [__unbuffered_cnt=0] [L709] 0 _Bool main$tmp_guard0; VAL [__unbuffered_cnt=0, main$tmp_guard0=0] [L710] 0 _Bool main$tmp_guard1; VAL [__unbuffered_cnt=0, main$tmp_guard0=0, main$tmp_guard1=0] [L712] 0 int x = 0; VAL [__unbuffered_cnt=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0] [L714] 0 int y = 0; VAL [__unbuffered_cnt=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y=0] [L715] 0 _Bool y$flush_delayed; VAL [__unbuffered_cnt=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y=0, y$flush_delayed=0] [L716] 0 int y$mem_tmp; VAL [__unbuffered_cnt=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0] [L717] 0 _Bool y$r_buff0_thd0; VAL [__unbuffered_cnt=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0] [L718] 0 _Bool y$r_buff0_thd1; VAL [__unbuffered_cnt=0, main$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$r_buff0_thd1=0] [L719] 0 _Bool y$r_buff0_thd2; VAL [__unbuffered_cnt=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$r_buff0_thd2=0] [L720] 0 _Bool y$r_buff1_thd0; VAL [__unbuffered_cnt=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_buff1_thd0=0] [L721] 0 _Bool y$r_buff1_thd1; VAL [__unbuffered_cnt=0, main$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$r_buff1_thd0=0, y$r_buff1_thd1=0] [L722] 0 _Bool y$r_buff1_thd2; VAL [__unbuffered_cnt=0, main$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$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0] [L723] 0 _Bool y$read_delayed; VAL [__unbuffered_cnt=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_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$read_delayed=0] [L724] 0 int *y$read_delayed_var; VAL [__unbuffered_cnt=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_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$read_delayed=0, y$read_delayed_var={0:0}] [L725] 0 int y$w_buff0; VAL [__unbuffered_cnt=0, main$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$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=0] [L726] 0 _Bool y$w_buff0_used; VAL [__unbuffered_cnt=0, main$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$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=0, y$w_buff0_used=0] [L727] 0 int y$w_buff1; VAL [__unbuffered_cnt=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_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=0, y$w_buff0_used=0, y$w_buff1=0] [L728] 0 _Bool y$w_buff1_used; VAL [__unbuffered_cnt=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_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=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] [L729] 0 _Bool weak$$choice0; VAL [__unbuffered_cnt=0, main$tmp_guard0=0, main$tmp_guard1=0, weak$$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_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=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] [L730] 0 _Bool weak$$choice2; VAL [__unbuffered_cnt=0, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=0, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0] [L790] 0 pthread_t t2477; VAL [__unbuffered_cnt=0, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=0, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0] [L791] FCALL, FORK 0 pthread_create(&t2477, ((void *)0), P0, ((void *)0)) VAL [__unbuffered_cnt=0, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=0, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0] [L734] 1 y$w_buff1 = y$w_buff0 [L735] 1 y$w_buff0 = 2 [L736] 1 y$w_buff1_used = y$w_buff0_used [L737] 1 y$w_buff0_used = (_Bool)1 [L18] COND FALSE 1 !(!expression) [L739] 1 y$r_buff1_thd0 = y$r_buff0_thd0 [L740] 1 y$r_buff1_thd1 = y$r_buff0_thd1 [L741] 1 y$r_buff1_thd2 = y$r_buff0_thd2 [L742] 1 y$r_buff0_thd1 = (_Bool)1 VAL [__unbuffered_cnt=0, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=1, y$r_buff0_thd2=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0] [L745] 1 x = 1 VAL [__unbuffered_cnt=0, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=1, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=1, y$r_buff0_thd2=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0] [L792] 0 pthread_t t2478; VAL [__unbuffered_cnt=0, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=1, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=1, y$r_buff0_thd2=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0] [L793] FCALL, FORK 0 pthread_create(&t2478, ((void *)0), P1, ((void *)0)) VAL [__unbuffered_cnt=0, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=1, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=1, y$r_buff0_thd2=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0] [L762] 2 x = 2 VAL [__unbuffered_cnt=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=2, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=1, y$r_buff0_thd2=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0] [L765] 2 y = 1 VAL [__unbuffered_cnt=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=2, y=1, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=1, y$r_buff0_thd2=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0] [L748] EXPR 1 y$w_buff0_used && y$r_buff0_thd1 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd1 ? y$w_buff1 : y) [L748] 1 y = y$w_buff0_used && y$r_buff0_thd1 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd1 ? y$w_buff1 : y) [L749] EXPR 1 y$w_buff0_used && y$r_buff0_thd1 ? (_Bool)0 : y$w_buff0_used [L749] 1 y$w_buff0_used = y$w_buff0_used && y$r_buff0_thd1 ? (_Bool)0 : y$w_buff0_used [L750] EXPR 1 y$w_buff0_used && y$r_buff0_thd1 || y$w_buff1_used && y$r_buff1_thd1 ? (_Bool)0 : y$w_buff1_used [L750] 1 y$w_buff1_used = y$w_buff0_used && y$r_buff0_thd1 || y$w_buff1_used && y$r_buff1_thd1 ? (_Bool)0 : y$w_buff1_used [L751] EXPR 1 y$w_buff0_used && y$r_buff0_thd1 ? (_Bool)0 : y$r_buff0_thd1 [L751] 1 y$r_buff0_thd1 = y$w_buff0_used && y$r_buff0_thd1 ? (_Bool)0 : y$r_buff0_thd1 [L752] EXPR 1 y$w_buff0_used && y$r_buff0_thd1 || y$w_buff1_used && y$r_buff1_thd1 ? (_Bool)0 : y$r_buff1_thd1 [L752] 1 y$r_buff1_thd1 = y$w_buff0_used && y$r_buff0_thd1 || y$w_buff1_used && y$r_buff1_thd1 ? (_Bool)0 : y$r_buff1_thd1 [L755] 1 __unbuffered_cnt = __unbuffered_cnt + 1 VAL [__unbuffered_cnt=1, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=2, y=2, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=1, y$r_buff0_thd2=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0] [L768] EXPR 2 y$w_buff0_used && y$r_buff0_thd2 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd2 ? y$w_buff1 : y) [L768] EXPR 2 y$w_buff1_used && y$r_buff1_thd2 ? y$w_buff1 : y [L768] EXPR 2 y$w_buff0_used && y$r_buff0_thd2 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd2 ? y$w_buff1 : y) [L768] 2 y = y$w_buff0_used && y$r_buff0_thd2 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd2 ? y$w_buff1 : y) [L769] EXPR 2 y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : y$w_buff0_used [L769] 2 y$w_buff0_used = y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : y$w_buff0_used [L770] EXPR 2 y$w_buff0_used && y$r_buff0_thd2 || y$w_buff1_used && y$r_buff1_thd2 ? (_Bool)0 : y$w_buff1_used [L770] 2 y$w_buff1_used = y$w_buff0_used && y$r_buff0_thd2 || y$w_buff1_used && y$r_buff1_thd2 ? (_Bool)0 : y$w_buff1_used [L771] EXPR 2 y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : y$r_buff0_thd2 [L771] 2 y$r_buff0_thd2 = y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : y$r_buff0_thd2 [L772] EXPR 2 y$w_buff0_used && y$r_buff0_thd2 || y$w_buff1_used && y$r_buff1_thd2 ? (_Bool)0 : y$r_buff1_thd2 [L772] 2 y$r_buff1_thd2 = y$w_buff0_used && y$r_buff0_thd2 || y$w_buff1_used && y$r_buff1_thd2 ? (_Bool)0 : y$r_buff1_thd2 [L775] 2 __unbuffered_cnt = __unbuffered_cnt + 1 VAL [__unbuffered_cnt=2, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=2, y=2, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=1, y$r_buff0_thd2=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0] [L795] 0 main$tmp_guard0 = __unbuffered_cnt == 2 VAL [__unbuffered_cnt=2, arg={0:0}, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=2, y=2, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=1, y$r_buff0_thd2=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0] [L3] COND FALSE 0 !(!cond) VAL [__unbuffered_cnt=2, arg={0:0}, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=2, y=2, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=1, y$r_buff0_thd2=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0] [L799] EXPR 0 y$w_buff0_used && y$r_buff0_thd0 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd0 ? y$w_buff1 : y) [L799] EXPR 0 y$w_buff1_used && y$r_buff1_thd0 ? y$w_buff1 : y [L799] EXPR 0 y$w_buff0_used && y$r_buff0_thd0 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd0 ? y$w_buff1 : y) [L799] 0 y = y$w_buff0_used && y$r_buff0_thd0 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd0 ? y$w_buff1 : y) [L800] EXPR 0 y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$w_buff0_used [L800] 0 y$w_buff0_used = y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$w_buff0_used [L801] EXPR 0 y$w_buff0_used && y$r_buff0_thd0 || y$w_buff1_used && y$r_buff1_thd0 ? (_Bool)0 : y$w_buff1_used [L801] 0 y$w_buff1_used = y$w_buff0_used && y$r_buff0_thd0 || y$w_buff1_used && y$r_buff1_thd0 ? (_Bool)0 : y$w_buff1_used [L802] EXPR 0 y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$r_buff0_thd0 [L802] 0 y$r_buff0_thd0 = y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$r_buff0_thd0 [L803] EXPR 0 y$w_buff0_used && y$r_buff0_thd0 || y$w_buff1_used && y$r_buff1_thd0 ? (_Bool)0 : y$r_buff1_thd0 [L803] 0 y$r_buff1_thd0 = y$w_buff0_used && y$r_buff0_thd0 || y$w_buff1_used && y$r_buff1_thd0 ? (_Bool)0 : y$r_buff1_thd0 [L806] 0 weak$$choice0 = __VERIFIER_nondet_bool() [L807] 0 weak$$choice2 = __VERIFIER_nondet_bool() [L808] 0 y$flush_delayed = weak$$choice2 [L809] 0 y$mem_tmp = y [L810] EXPR 0 !y$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) [L810] 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) [L811] EXPR 0 weak$$choice2 ? y$w_buff0 : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$w_buff0 : (y$w_buff0_used && y$r_buff0_thd0 ? y$w_buff0 : y$w_buff0)) [L811] 0 y$w_buff0 = weak$$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)) [L812] EXPR 0 weak$$choice2 ? y$w_buff1 : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$w_buff1 : (y$w_buff0_used && y$r_buff0_thd0 ? y$w_buff1 : y$w_buff1)) [L812] 0 y$w_buff1 = weak$$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)) [L813] EXPR 0 weak$$choice2 ? y$w_buff0_used : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$w_buff0_used : (y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$w_buff0_used)) [L813] 0 y$w_buff0_used = weak$$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)) [L814] EXPR 0 weak$$choice2 ? y$w_buff1_used : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$w_buff1_used : (y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : (_Bool)0)) [L814] 0 y$w_buff1_used = weak$$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)) [L815] EXPR 0 weak$$choice2 ? y$r_buff0_thd0 : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$r_buff0_thd0 : (y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$r_buff0_thd0)) [L815] 0 y$r_buff0_thd0 = weak$$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)) [L816] EXPR 0 weak$$choice2 ? y$r_buff1_thd0 : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$r_buff1_thd0 : (y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : (_Bool)0)) [L816] 0 y$r_buff1_thd0 = weak$$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$r_buff0_thd0 ? (_Bool)0 : (_Bool)0)) [L817] 0 main$tmp_guard1 = !(x == 2 && y == 2) [L818] EXPR 0 y$flush_delayed ? y$mem_tmp : y [L818] 0 y = y$flush_delayed ? y$mem_tmp : y [L819] 0 y$flush_delayed = (_Bool)0 VAL [__unbuffered_cnt=2, arg={0:0}, arg={0:0}, main$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=1, y$r_buff0_thd2=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=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] [L18] COND TRUE 0 !expression VAL [__unbuffered_cnt=2, 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=1, y$r_buff0_thd2=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=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] [L17] COND FALSE 0 !(0) VAL [__unbuffered_cnt=2, 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=1, y$r_buff0_thd2=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=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] [L17] 0 __assert_fail ("0", "safe029_pso.oepc.c", 8, __extension__ __PRETTY_FUNCTION__) VAL [__unbuffered_cnt=2, 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=1, y$r_buff0_thd2=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=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] - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 81 locations, 2 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 6.9s, OverallIterations: 11, TraceHistogramMax: 1, AutomataDifference: 3.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 1117 SDtfs, 2148 SDslu, 4283 SDs, 0 SdLazy, 726 SolverSat, 154 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 141 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 121 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 282 ImplicationChecksByTransitivity, 2.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=8485occurred in iteration=7, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.7s SatisfiabilityAnalysisTime, 2.0s InterpolantComputationTime, 607 NumberOfCodeBlocks, 607 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 535 ConstructedInterpolants, 0 QuantifiedInterpolants, 149767 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 10 InterpolantComputations, 10 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...