/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/automizer/mcr/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA.epf -i ../../../trunk/examples/svcomp/pthread-wmm/safe031_power.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-b09bf87 [2020-10-16 12:11:30,514 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-16 12:11:30,516 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-16 12:11:30,542 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-16 12:11:30,542 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-16 12:11:30,544 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-16 12:11:30,545 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-16 12:11:30,547 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-16 12:11:30,549 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-16 12:11:30,550 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-16 12:11:30,551 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-16 12:11:30,552 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-16 12:11:30,552 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-16 12:11:30,553 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-16 12:11:30,554 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-16 12:11:30,556 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-16 12:11:30,556 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-16 12:11:30,558 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-16 12:11:30,559 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-16 12:11:30,561 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-16 12:11:30,563 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-16 12:11:30,564 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-16 12:11:30,565 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-16 12:11:30,566 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-16 12:11:30,569 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-16 12:11:30,569 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-16 12:11:30,569 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-16 12:11:30,570 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-16 12:11:30,571 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-16 12:11:30,572 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-16 12:11:30,572 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-16 12:11:30,573 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-16 12:11:30,574 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-16 12:11:30,575 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-16 12:11:30,576 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-16 12:11:30,576 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-16 12:11:30,577 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-16 12:11:30,577 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-16 12:11:30,577 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-16 12:11:30,578 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-16 12:11:30,579 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-16 12:11:30,580 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/mcr/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA.epf [2020-10-16 12:11:30,604 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-16 12:11:30,605 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-16 12:11:30,606 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-16 12:11:30,606 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-16 12:11:30,607 INFO L138 SettingsManager]: * Use SBE=true [2020-10-16 12:11:30,607 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-16 12:11:30,607 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-16 12:11:30,607 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-16 12:11:30,607 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-16 12:11:30,608 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-16 12:11:30,608 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-16 12:11:30,608 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-16 12:11:30,608 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-16 12:11:30,608 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-16 12:11:30,609 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-16 12:11:30,609 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-16 12:11:30,609 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-16 12:11:30,609 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-16 12:11:30,609 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-16 12:11:30,609 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-16 12:11:30,610 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-16 12:11:30,610 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-16 12:11:30,610 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-16 12:11:30,610 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_NestedInterpolation [2020-10-16 12:11:30,611 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-16 12:11:30,611 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-16 12:11:30,611 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-16 12:11:30,611 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=VARIABLE_BASED_MOVER_CHECK [2020-10-16 12:11:30,611 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-16 12:11:30,948 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-16 12:11:30,970 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-16 12:11:30,974 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-16 12:11:30,976 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-16 12:11:30,976 INFO L275 PluginConnector]: CDTParser initialized [2020-10-16 12:11:30,977 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe031_power.oepc.i [2020-10-16 12:11:31,047 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/d659a3312/0055c697444e460095244a8ab78486b0/FLAGbf4820a10 [2020-10-16 12:11:31,617 INFO L306 CDTParser]: Found 1 translation units. [2020-10-16 12:11:31,620 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/pthread-wmm/safe031_power.oepc.i [2020-10-16 12:11:31,643 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/d659a3312/0055c697444e460095244a8ab78486b0/FLAGbf4820a10 [2020-10-16 12:11:31,892 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/d659a3312/0055c697444e460095244a8ab78486b0 [2020-10-16 12:11:31,900 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-16 12:11:31,902 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-10-16 12:11:31,903 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-16 12:11:31,904 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-16 12:11:31,907 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-16 12:11:31,908 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 12:11:31" (1/1) ... [2020-10-16 12:11:31,912 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5d78e97d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:11:31, skipping insertion in model container [2020-10-16 12:11:31,912 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 12:11:31" (1/1) ... [2020-10-16 12:11:31,922 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-16 12:11:31,989 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-16 12:11:32,547 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-16 12:11:32,560 INFO L203 MainTranslator]: Completed pre-run [2020-10-16 12:11:32,624 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-16 12:11:32,713 INFO L208 MainTranslator]: Completed translation [2020-10-16 12:11:32,713 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:11:32 WrapperNode [2020-10-16 12:11:32,714 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-16 12:11:32,715 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-16 12:11:32,715 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-16 12:11:32,715 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-16 12:11:32,724 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:11:32" (1/1) ... [2020-10-16 12:11:32,743 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:11:32" (1/1) ... [2020-10-16 12:11:32,777 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-16 12:11:32,778 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-16 12:11:32,778 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-16 12:11:32,778 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-16 12:11:32,786 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:11:32" (1/1) ... [2020-10-16 12:11:32,786 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:11:32" (1/1) ... [2020-10-16 12:11:32,791 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:11:32" (1/1) ... [2020-10-16 12:11:32,792 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:11:32" (1/1) ... [2020-10-16 12:11:32,806 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:11:32" (1/1) ... [2020-10-16 12:11:32,812 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:11:32" (1/1) ... [2020-10-16 12:11:32,816 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:11:32" (1/1) ... [2020-10-16 12:11:32,821 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-16 12:11:32,822 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-16 12:11:32,822 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-16 12:11:32,822 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-16 12:11:32,823 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:11:32" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-16 12:11:32,896 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-16 12:11:32,897 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-10-16 12:11:32,897 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-16 12:11:32,897 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-16 12:11:32,897 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-10-16 12:11:32,904 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-10-16 12:11:32,904 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-10-16 12:11:32,905 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-10-16 12:11:32,905 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-10-16 12:11:32,905 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-10-16 12:11:32,906 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-10-16 12:11:32,906 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-16 12:11:32,906 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-16 12:11:32,908 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-10-16 12:11:34,925 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-16 12:11:34,925 INFO L298 CfgBuilder]: Removed 10 assume(true) statements. [2020-10-16 12:11:34,928 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 12:11:34 BoogieIcfgContainer [2020-10-16 12:11:34,929 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-16 12:11:34,930 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-16 12:11:34,931 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-16 12:11:34,936 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-16 12:11:34,936 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.10 12:11:31" (1/3) ... [2020-10-16 12:11:34,937 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@782fc127 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 12:11:34, skipping insertion in model container [2020-10-16 12:11:34,938 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:11:32" (2/3) ... [2020-10-16 12:11:34,938 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@782fc127 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 12:11:34, skipping insertion in model container [2020-10-16 12:11:34,938 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 12:11:34" (3/3) ... [2020-10-16 12:11:34,940 INFO L111 eAbstractionObserver]: Analyzing ICFG safe031_power.oepc.i [2020-10-16 12:11:34,955 WARN L153 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-10-16 12:11:34,956 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-16 12:11:34,966 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2020-10-16 12:11:34,968 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-10-16 12:11:35,004 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:11:35,005 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:11:35,005 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:11:35,005 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:11:35,006 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:11:35,006 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:11:35,006 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:11:35,007 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:11:35,007 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:11:35,008 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:11:35,008 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:11:35,008 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:11:35,008 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:11:35,008 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:11:35,008 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:11:35,009 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:11:35,009 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:11:35,009 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:11:35,009 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:11:35,009 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:11:35,009 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:11:35,010 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:11:35,010 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:11:35,010 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:11:35,010 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:11:35,010 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:11:35,010 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:11:35,011 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:11:35,011 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:11:35,011 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:11:35,011 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:11:35,011 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:11:35,012 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:11:35,012 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:11:35,012 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:11:35,012 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite24| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:11:35,012 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite23| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:11:35,012 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:11:35,013 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:11:35,013 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:11:35,013 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:11:35,013 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:11:35,015 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:11:35,015 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:11:35,016 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:11:35,016 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:11:35,016 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:11:35,016 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:11:35,017 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:11:35,017 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:11:35,018 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:11:35,018 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:11:35,018 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite25| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:11:35,019 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite25| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:11:35,019 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite27| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:11:35,019 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite26| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:11:35,019 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite29| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:11:35,019 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite28| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:11:35,020 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:11:35,020 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:11:35,020 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:11:35,021 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:11:35,021 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:11:35,022 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:11:35,022 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:11:35,022 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:11:35,022 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:11:35,023 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:11:35,023 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:11:35,023 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:11:35,023 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:11:35,023 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:11:35,024 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:11:35,024 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:11:35,029 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:11:35,029 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:11:35,030 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:11:35,030 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:11:35,030 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:11:35,031 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:11:35,031 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:11:35,031 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:11:35,032 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:11:35,032 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:11:35,040 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:11:35,040 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:11:35,041 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:11:35,041 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:11:35,041 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:11:35,041 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:11:35,041 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:11:35,042 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:11:35,042 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:11:35,042 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:11:35,043 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:11:35,043 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:11:35,043 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:11:35,044 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:11:35,044 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:11:35,044 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:11:35,044 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:11:35,045 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:11:35,045 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:11:35,045 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:11:35,046 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:11:35,046 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:11:35,046 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:11:35,046 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:11:35,046 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite24| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:11:35,047 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite23| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:11:35,047 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:11:35,049 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:11:35,049 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:11:35,050 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:11:35,050 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite28| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:11:35,050 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite29| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:11:35,051 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:11:35,051 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:11:35,051 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:11:35,051 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite26| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:11:35,052 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite27| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:11:35,052 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite25| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:11:35,052 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:11:35,053 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2020-10-16 12:11:35,072 INFO L253 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2020-10-16 12:11:35,098 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-16 12:11:35,099 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-16 12:11:35,099 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-16 12:11:35,099 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-16 12:11:35,099 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-16 12:11:35,099 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-16 12:11:35,099 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-16 12:11:35,100 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-16 12:11:35,117 INFO L137 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2020-10-16 12:11:35,118 INFO L144 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 99 places, 91 transitions, 197 flow [2020-10-16 12:11:35,121 INFO L111 LiptonReduction]: Starting Lipton reduction on Petri net that has 99 places, 91 transitions, 197 flow [2020-10-16 12:11:35,124 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 99 places, 91 transitions, 197 flow [2020-10-16 12:11:35,173 INFO L129 PetriNetUnfolder]: 2/88 cut-off events. [2020-10-16 12:11:35,173 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-10-16 12:11:35,179 INFO L80 FinitePrefix]: Finished finitePrefix Result has 98 conditions, 88 events. 2/88 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 62 event pairs, 0 based on Foata normal form. 0/84 useless extension candidates. Maximal degree in co-relation 59. Up to 2 conditions per place. [2020-10-16 12:11:35,182 INFO L117 LiptonReduction]: Number of co-enabled transitions 1544 [2020-10-16 12:11:35,637 WARN L193 SmtUtils]: Spent 324.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 58 [2020-10-16 12:11:36,562 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 55 [2020-10-16 12:11:36,675 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 55 [2020-10-16 12:11:37,583 WARN L193 SmtUtils]: Spent 198.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 85 [2020-10-16 12:11:37,688 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 83 [2020-10-16 12:11:37,694 INFO L132 LiptonReduction]: Checked pairs total: 3682 [2020-10-16 12:11:37,695 INFO L134 LiptonReduction]: Total number of compositions: 73 [2020-10-16 12:11:37,701 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 35 places, 25 transitions, 65 flow [2020-10-16 12:11:37,750 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 658 states. [2020-10-16 12:11:37,752 INFO L276 IsEmpty]: Start isEmpty. Operand 658 states. [2020-10-16 12:11:37,758 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2020-10-16 12:11:37,759 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 12:11:37,759 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2020-10-16 12:11:37,760 INFO L429 AbstractCegarLoop]: === Iteration 1 === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 12:11:37,765 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 12:11:37,766 INFO L82 PathProgramCache]: Analyzing trace with hash 907184313, now seen corresponding path program 1 times [2020-10-16 12:11:37,776 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 12:11:37,776 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1623081420] [2020-10-16 12:11:37,777 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 12:11:37,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 12:11:38,037 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 12:11:38,037 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1623081420] [2020-10-16 12:11:38,038 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 12:11:38,038 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-10-16 12:11:38,039 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [980091895] [2020-10-16 12:11:38,044 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-16 12:11:38,044 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 12:11:38,060 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-16 12:11:38,061 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-16 12:11:38,063 INFO L87 Difference]: Start difference. First operand 658 states. Second operand 3 states. [2020-10-16 12:11:38,147 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 12:11:38,147 INFO L93 Difference]: Finished difference Result 550 states and 1693 transitions. [2020-10-16 12:11:38,148 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-16 12:11:38,150 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 5 [2020-10-16 12:11:38,150 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 12:11:38,170 INFO L225 Difference]: With dead ends: 550 [2020-10-16 12:11:38,171 INFO L226 Difference]: Without dead ends: 450 [2020-10-16 12:11:38,172 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-16 12:11:38,198 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 450 states. [2020-10-16 12:11:38,252 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 450 to 450. [2020-10-16 12:11:38,256 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 450 states. [2020-10-16 12:11:38,264 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 450 states to 450 states and 1358 transitions. [2020-10-16 12:11:38,266 INFO L78 Accepts]: Start accepts. Automaton has 450 states and 1358 transitions. Word has length 5 [2020-10-16 12:11:38,266 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 12:11:38,266 INFO L481 AbstractCegarLoop]: Abstraction has 450 states and 1358 transitions. [2020-10-16 12:11:38,267 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-16 12:11:38,267 INFO L276 IsEmpty]: Start isEmpty. Operand 450 states and 1358 transitions. [2020-10-16 12:11:38,269 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-10-16 12:11:38,269 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 12:11:38,270 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 12:11:38,270 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-16 12:11:38,270 INFO L429 AbstractCegarLoop]: === Iteration 2 === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 12:11:38,270 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 12:11:38,271 INFO L82 PathProgramCache]: Analyzing trace with hash 1723467439, now seen corresponding path program 1 times [2020-10-16 12:11:38,271 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 12:11:38,271 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1941794969] [2020-10-16 12:11:38,272 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 12:11:38,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 12:11:38,412 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 12:11:38,412 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1941794969] [2020-10-16 12:11:38,413 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 12:11:38,413 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-10-16 12:11:38,413 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [76635644] [2020-10-16 12:11:38,415 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-16 12:11:38,415 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 12:11:38,415 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-16 12:11:38,415 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-16 12:11:38,416 INFO L87 Difference]: Start difference. First operand 450 states and 1358 transitions. Second operand 3 states. [2020-10-16 12:11:38,427 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 12:11:38,427 INFO L93 Difference]: Finished difference Result 442 states and 1328 transitions. [2020-10-16 12:11:38,428 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-16 12:11:38,428 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 9 [2020-10-16 12:11:38,428 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 12:11:38,433 INFO L225 Difference]: With dead ends: 442 [2020-10-16 12:11:38,433 INFO L226 Difference]: Without dead ends: 442 [2020-10-16 12:11:38,434 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-16 12:11:38,436 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 442 states. [2020-10-16 12:11:38,453 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 442 to 442. [2020-10-16 12:11:38,453 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 442 states. [2020-10-16 12:11:38,456 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 442 states to 442 states and 1328 transitions. [2020-10-16 12:11:38,456 INFO L78 Accepts]: Start accepts. Automaton has 442 states and 1328 transitions. Word has length 9 [2020-10-16 12:11:38,457 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 12:11:38,457 INFO L481 AbstractCegarLoop]: Abstraction has 442 states and 1328 transitions. [2020-10-16 12:11:38,458 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-16 12:11:38,458 INFO L276 IsEmpty]: Start isEmpty. Operand 442 states and 1328 transitions. [2020-10-16 12:11:38,459 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-10-16 12:11:38,459 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 12:11:38,460 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 12:11:38,460 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-16 12:11:38,460 INFO L429 AbstractCegarLoop]: === Iteration 3 === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 12:11:38,460 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 12:11:38,460 INFO L82 PathProgramCache]: Analyzing trace with hash 1887066754, now seen corresponding path program 1 times [2020-10-16 12:11:38,461 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 12:11:38,461 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [458739600] [2020-10-16 12:11:38,461 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 12:11:38,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 12:11:38,511 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 12:11:38,512 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [458739600] [2020-10-16 12:11:38,512 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 12:11:38,512 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-10-16 12:11:38,513 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2007051417] [2020-10-16 12:11:38,513 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-16 12:11:38,513 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 12:11:38,514 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-16 12:11:38,514 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-16 12:11:38,514 INFO L87 Difference]: Start difference. First operand 442 states and 1328 transitions. Second operand 3 states. [2020-10-16 12:11:38,532 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 12:11:38,533 INFO L93 Difference]: Finished difference Result 434 states and 1298 transitions. [2020-10-16 12:11:38,535 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-16 12:11:38,535 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10 [2020-10-16 12:11:38,535 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 12:11:38,540 INFO L225 Difference]: With dead ends: 434 [2020-10-16 12:11:38,540 INFO L226 Difference]: Without dead ends: 434 [2020-10-16 12:11:38,541 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-16 12:11:38,544 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 434 states. [2020-10-16 12:11:38,557 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 434 to 434. [2020-10-16 12:11:38,557 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 434 states. [2020-10-16 12:11:38,559 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 434 states to 434 states and 1298 transitions. [2020-10-16 12:11:38,559 INFO L78 Accepts]: Start accepts. Automaton has 434 states and 1298 transitions. Word has length 10 [2020-10-16 12:11:38,560 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 12:11:38,560 INFO L481 AbstractCegarLoop]: Abstraction has 434 states and 1298 transitions. [2020-10-16 12:11:38,560 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-16 12:11:38,560 INFO L276 IsEmpty]: Start isEmpty. Operand 434 states and 1298 transitions. [2020-10-16 12:11:38,566 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-10-16 12:11:38,566 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 12:11:38,567 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 12:11:38,567 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-16 12:11:38,567 INFO L429 AbstractCegarLoop]: === Iteration 4 === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 12:11:38,567 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 12:11:38,568 INFO L82 PathProgramCache]: Analyzing trace with hash -1808289269, now seen corresponding path program 1 times [2020-10-16 12:11:38,568 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 12:11:38,569 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [931268291] [2020-10-16 12:11:38,569 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 12:11:38,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 12:11:38,739 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 12:11:38,740 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [931268291] [2020-10-16 12:11:38,740 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 12:11:38,740 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-16 12:11:38,741 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1410512640] [2020-10-16 12:11:38,741 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-16 12:11:38,741 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 12:11:38,741 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-16 12:11:38,742 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-16 12:11:38,742 INFO L87 Difference]: Start difference. First operand 434 states and 1298 transitions. Second operand 4 states. [2020-10-16 12:11:38,781 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 12:11:38,781 INFO L93 Difference]: Finished difference Result 402 states and 1053 transitions. [2020-10-16 12:11:38,781 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-16 12:11:38,781 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2020-10-16 12:11:38,782 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 12:11:38,784 INFO L225 Difference]: With dead ends: 402 [2020-10-16 12:11:38,784 INFO L226 Difference]: Without dead ends: 302 [2020-10-16 12:11:38,784 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-16 12:11:38,786 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 302 states. [2020-10-16 12:11:38,791 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 302 to 302. [2020-10-16 12:11:38,792 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 302 states. [2020-10-16 12:11:38,793 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 302 states to 302 states and 770 transitions. [2020-10-16 12:11:38,793 INFO L78 Accepts]: Start accepts. Automaton has 302 states and 770 transitions. Word has length 11 [2020-10-16 12:11:38,794 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 12:11:38,794 INFO L481 AbstractCegarLoop]: Abstraction has 302 states and 770 transitions. [2020-10-16 12:11:38,794 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-16 12:11:38,794 INFO L276 IsEmpty]: Start isEmpty. Operand 302 states and 770 transitions. [2020-10-16 12:11:38,795 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-10-16 12:11:38,795 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 12:11:38,795 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 12:11:38,795 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-16 12:11:38,796 INFO L429 AbstractCegarLoop]: === Iteration 5 === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 12:11:38,796 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 12:11:38,796 INFO L82 PathProgramCache]: Analyzing trace with hash 1652630318, now seen corresponding path program 1 times [2020-10-16 12:11:38,796 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 12:11:38,796 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [984716910] [2020-10-16 12:11:38,797 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 12:11:38,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 12:11:38,943 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 12:11:38,944 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [984716910] [2020-10-16 12:11:38,944 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 12:11:38,944 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-16 12:11:38,945 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [58515096] [2020-10-16 12:11:38,945 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-16 12:11:38,945 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 12:11:38,945 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-16 12:11:38,946 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-16 12:11:38,946 INFO L87 Difference]: Start difference. First operand 302 states and 770 transitions. Second operand 5 states. [2020-10-16 12:11:39,017 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 12:11:39,018 INFO L93 Difference]: Finished difference Result 238 states and 553 transitions. [2020-10-16 12:11:39,022 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-16 12:11:39,023 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 13 [2020-10-16 12:11:39,023 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 12:11:39,024 INFO L225 Difference]: With dead ends: 238 [2020-10-16 12:11:39,024 INFO L226 Difference]: Without dead ends: 186 [2020-10-16 12:11:39,025 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-10-16 12:11:39,026 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 186 states. [2020-10-16 12:11:39,029 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 186 to 186. [2020-10-16 12:11:39,029 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 186 states. [2020-10-16 12:11:39,030 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 186 states to 186 states and 422 transitions. [2020-10-16 12:11:39,030 INFO L78 Accepts]: Start accepts. Automaton has 186 states and 422 transitions. Word has length 13 [2020-10-16 12:11:39,031 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 12:11:39,031 INFO L481 AbstractCegarLoop]: Abstraction has 186 states and 422 transitions. [2020-10-16 12:11:39,031 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-16 12:11:39,031 INFO L276 IsEmpty]: Start isEmpty. Operand 186 states and 422 transitions. [2020-10-16 12:11:39,032 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-10-16 12:11:39,032 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 12:11:39,032 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 12:11:39,032 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-16 12:11:39,033 INFO L429 AbstractCegarLoop]: === Iteration 6 === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 12:11:39,033 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 12:11:39,033 INFO L82 PathProgramCache]: Analyzing trace with hash -1739272992, now seen corresponding path program 1 times [2020-10-16 12:11:39,033 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 12:11:39,034 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [238017126] [2020-10-16 12:11:39,034 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 12:11:39,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 12:11:39,084 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 12:11:39,085 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [238017126] [2020-10-16 12:11:39,085 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 12:11:39,085 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-16 12:11:39,086 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1822126885] [2020-10-16 12:11:39,086 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-16 12:11:39,086 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 12:11:39,086 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-16 12:11:39,087 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-16 12:11:39,087 INFO L87 Difference]: Start difference. First operand 186 states and 422 transitions. Second operand 3 states. [2020-10-16 12:11:39,097 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 12:11:39,097 INFO L93 Difference]: Finished difference Result 254 states and 560 transitions. [2020-10-16 12:11:39,097 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-16 12:11:39,098 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 16 [2020-10-16 12:11:39,098 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 12:11:39,099 INFO L225 Difference]: With dead ends: 254 [2020-10-16 12:11:39,099 INFO L226 Difference]: Without dead ends: 188 [2020-10-16 12:11:39,100 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-16 12:11:39,101 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 188 states. [2020-10-16 12:11:39,104 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 188 to 185. [2020-10-16 12:11:39,104 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 185 states. [2020-10-16 12:11:39,105 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 185 states to 185 states and 402 transitions. [2020-10-16 12:11:39,105 INFO L78 Accepts]: Start accepts. Automaton has 185 states and 402 transitions. Word has length 16 [2020-10-16 12:11:39,105 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 12:11:39,106 INFO L481 AbstractCegarLoop]: Abstraction has 185 states and 402 transitions. [2020-10-16 12:11:39,106 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-16 12:11:39,106 INFO L276 IsEmpty]: Start isEmpty. Operand 185 states and 402 transitions. [2020-10-16 12:11:39,107 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-10-16 12:11:39,107 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 12:11:39,107 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 12:11:39,107 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-16 12:11:39,107 INFO L429 AbstractCegarLoop]: === Iteration 7 === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 12:11:39,108 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 12:11:39,108 INFO L82 PathProgramCache]: Analyzing trace with hash -1306825536, now seen corresponding path program 1 times [2020-10-16 12:11:39,108 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 12:11:39,108 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1341923612] [2020-10-16 12:11:39,108 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 12:11:39,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 12:11:39,169 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 12:11:39,169 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1341923612] [2020-10-16 12:11:39,170 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 12:11:39,170 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-16 12:11:39,170 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1515394059] [2020-10-16 12:11:39,170 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-16 12:11:39,171 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 12:11:39,171 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-16 12:11:39,172 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-16 12:11:39,172 INFO L87 Difference]: Start difference. First operand 185 states and 402 transitions. Second operand 3 states. [2020-10-16 12:11:39,195 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 12:11:39,195 INFO L93 Difference]: Finished difference Result 250 states and 521 transitions. [2020-10-16 12:11:39,196 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-16 12:11:39,197 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 16 [2020-10-16 12:11:39,197 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 12:11:39,198 INFO L225 Difference]: With dead ends: 250 [2020-10-16 12:11:39,198 INFO L226 Difference]: Without dead ends: 181 [2020-10-16 12:11:39,199 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-16 12:11:39,204 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 181 states. [2020-10-16 12:11:39,212 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 181 to 178. [2020-10-16 12:11:39,212 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 178 states. [2020-10-16 12:11:39,213 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 178 states to 178 states and 368 transitions. [2020-10-16 12:11:39,213 INFO L78 Accepts]: Start accepts. Automaton has 178 states and 368 transitions. Word has length 16 [2020-10-16 12:11:39,214 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 12:11:39,214 INFO L481 AbstractCegarLoop]: Abstraction has 178 states and 368 transitions. [2020-10-16 12:11:39,214 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-16 12:11:39,216 INFO L276 IsEmpty]: Start isEmpty. Operand 178 states and 368 transitions. [2020-10-16 12:11:39,217 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-10-16 12:11:39,217 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 12:11:39,217 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 12:11:39,217 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-16 12:11:39,217 INFO L429 AbstractCegarLoop]: === Iteration 8 === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 12:11:39,218 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 12:11:39,218 INFO L82 PathProgramCache]: Analyzing trace with hash 1556762490, now seen corresponding path program 2 times [2020-10-16 12:11:39,218 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 12:11:39,218 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1866745262] [2020-10-16 12:11:39,219 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 12:11:39,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 12:11:39,406 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 12:11:39,407 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1866745262] [2020-10-16 12:11:39,407 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 12:11:39,407 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-16 12:11:39,408 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [123351469] [2020-10-16 12:11:39,408 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-16 12:11:39,408 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 12:11:39,409 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-16 12:11:39,409 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-10-16 12:11:39,409 INFO L87 Difference]: Start difference. First operand 178 states and 368 transitions. Second operand 6 states. [2020-10-16 12:11:39,481 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 12:11:39,481 INFO L93 Difference]: Finished difference Result 159 states and 330 transitions. [2020-10-16 12:11:39,481 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-16 12:11:39,482 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 16 [2020-10-16 12:11:39,482 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 12:11:39,483 INFO L225 Difference]: With dead ends: 159 [2020-10-16 12:11:39,483 INFO L226 Difference]: Without dead ends: 61 [2020-10-16 12:11:39,484 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2020-10-16 12:11:39,485 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states. [2020-10-16 12:11:39,487 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 61. [2020-10-16 12:11:39,487 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 61 states. [2020-10-16 12:11:39,488 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 112 transitions. [2020-10-16 12:11:39,488 INFO L78 Accepts]: Start accepts. Automaton has 61 states and 112 transitions. Word has length 16 [2020-10-16 12:11:39,489 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 12:11:39,489 INFO L481 AbstractCegarLoop]: Abstraction has 61 states and 112 transitions. [2020-10-16 12:11:39,489 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-16 12:11:39,489 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 112 transitions. [2020-10-16 12:11:39,490 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2020-10-16 12:11:39,490 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 12:11:39,495 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 12:11:39,495 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-16 12:11:39,495 INFO L429 AbstractCegarLoop]: === Iteration 9 === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 12:11:39,496 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 12:11:39,496 INFO L82 PathProgramCache]: Analyzing trace with hash 812890557, now seen corresponding path program 1 times [2020-10-16 12:11:39,496 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 12:11:39,501 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [646543135] [2020-10-16 12:11:39,501 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 12:11:39,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 12:11:39,817 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 12:11:39,817 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [646543135] [2020-10-16 12:11:39,818 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 12:11:39,818 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-16 12:11:39,818 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1344486507] [2020-10-16 12:11:39,818 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-16 12:11:39,819 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 12:11:39,819 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-16 12:11:39,819 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-10-16 12:11:39,819 INFO L87 Difference]: Start difference. First operand 61 states and 112 transitions. Second operand 7 states. [2020-10-16 12:11:39,920 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 12:11:39,920 INFO L93 Difference]: Finished difference Result 83 states and 150 transitions. [2020-10-16 12:11:39,920 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-16 12:11:39,920 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 20 [2020-10-16 12:11:39,921 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 12:11:39,921 INFO L225 Difference]: With dead ends: 83 [2020-10-16 12:11:39,921 INFO L226 Difference]: Without dead ends: 49 [2020-10-16 12:11:39,922 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2020-10-16 12:11:39,922 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states. [2020-10-16 12:11:39,923 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 49. [2020-10-16 12:11:39,923 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 49 states. [2020-10-16 12:11:39,924 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 84 transitions. [2020-10-16 12:11:39,924 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 84 transitions. Word has length 20 [2020-10-16 12:11:39,924 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 12:11:39,924 INFO L481 AbstractCegarLoop]: Abstraction has 49 states and 84 transitions. [2020-10-16 12:11:39,925 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-16 12:11:39,925 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 84 transitions. [2020-10-16 12:11:39,925 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2020-10-16 12:11:39,925 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 12:11:39,926 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 12:11:39,926 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-16 12:11:39,926 INFO L429 AbstractCegarLoop]: === Iteration 10 === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 12:11:39,926 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 12:11:39,926 INFO L82 PathProgramCache]: Analyzing trace with hash 2120273029, now seen corresponding path program 2 times [2020-10-16 12:11:39,927 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 12:11:39,927 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1917679152] [2020-10-16 12:11:39,927 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 12:11:39,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 12:11:40,119 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 12:11:40,120 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1917679152] [2020-10-16 12:11:40,120 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 12:11:40,120 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-16 12:11:40,120 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [679785242] [2020-10-16 12:11:40,121 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-16 12:11:40,121 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 12:11:40,121 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-16 12:11:40,121 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-10-16 12:11:40,122 INFO L87 Difference]: Start difference. First operand 49 states and 84 transitions. Second operand 7 states. [2020-10-16 12:11:40,268 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 12:11:40,268 INFO L93 Difference]: Finished difference Result 68 states and 112 transitions. [2020-10-16 12:11:40,269 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-16 12:11:40,269 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 20 [2020-10-16 12:11:40,269 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 12:11:40,270 INFO L225 Difference]: With dead ends: 68 [2020-10-16 12:11:40,270 INFO L226 Difference]: Without dead ends: 50 [2020-10-16 12:11:40,270 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2020-10-16 12:11:40,271 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2020-10-16 12:11:40,272 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 41. [2020-10-16 12:11:40,272 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 41 states. [2020-10-16 12:11:40,273 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 64 transitions. [2020-10-16 12:11:40,273 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 64 transitions. Word has length 20 [2020-10-16 12:11:40,273 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 12:11:40,273 INFO L481 AbstractCegarLoop]: Abstraction has 41 states and 64 transitions. [2020-10-16 12:11:40,273 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-16 12:11:40,273 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 64 transitions. [2020-10-16 12:11:40,274 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2020-10-16 12:11:40,274 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 12:11:40,274 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 12:11:40,274 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-16 12:11:40,274 INFO L429 AbstractCegarLoop]: === Iteration 11 === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 12:11:40,275 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 12:11:40,275 INFO L82 PathProgramCache]: Analyzing trace with hash 1479075013, now seen corresponding path program 3 times [2020-10-16 12:11:40,275 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 12:11:40,275 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [7919079] [2020-10-16 12:11:40,276 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 12:11:40,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-16 12:11:40,315 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-16 12:11:40,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-16 12:11:40,356 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-16 12:11:40,391 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-16 12:11:40,391 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-16 12:11:40,392 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-16 12:11:40,393 WARN L264 etLargeBlockEncoding]: Failed to translate choice composition: Branch encoders not available. [2020-10-16 12:11:40,416 WARN L124 codingBacktranslator]: Skipped backtranslation of ATE [907] [907] L3-->L834: Formula: (let ((.cse6 (= (mod ~x$r_buff0_thd0~0_In-511450313 256) 0)) (.cse7 (= (mod ~x$w_buff0_used~0_In-511450313 256) 0)) (.cse9 (= (mod ~x$r_buff1_thd0~0_In-511450313 256) 0)) (.cse8 (= (mod ~x$w_buff1_used~0_In-511450313 256) 0))) (let ((.cse0 (or .cse9 .cse8)) (.cse1 (not .cse9)) (.cse2 (not .cse8)) (.cse5 (or .cse6 .cse7)) (.cse3 (not .cse7)) (.cse4 (not .cse6))) (and (= ~x$r_buff1_thd0~0_Out-511450313 ~x$r_buff1_thd0~0_In-511450313) (= ~x$r_buff0_thd0~0_Out-511450313 ~x$r_buff0_thd0~0_In-511450313) (= ULTIMATE.start_assume_abort_if_not_~cond_Out-511450313 |ULTIMATE.start_assume_abort_if_not_#in~cond_In-511450313|) (or (and (= ~x$w_buff1_used~0_In-511450313 ~x$w_buff1_used~0_Out-511450313) .cse0) (and .cse1 (= ~x$w_buff1_used~0_Out-511450313 0) .cse2)) (or (and .cse3 .cse4 (= ~x$w_buff0_used~0_Out-511450313 0)) (and (= ~x$w_buff0_used~0_In-511450313 ~x$w_buff0_used~0_Out-511450313) .cse5)) (not (= ULTIMATE.start_assume_abort_if_not_~cond_Out-511450313 0)) (or (and (or (and (= ~x~0_In-511450313 ~x~0_Out-511450313) .cse0) (and (= ~x~0_Out-511450313 ~x$w_buff1~0_In-511450313) .cse1 .cse2)) .cse5) (and .cse3 .cse4 (= ~x$w_buff0~0_In-511450313 ~x~0_Out-511450313)))))) InVars {~x$w_buff0~0=~x$w_buff0~0_In-511450313, ~x$r_buff0_thd0~0=~x$r_buff0_thd0~0_In-511450313, ULTIMATE.start_assume_abort_if_not_#in~cond=|ULTIMATE.start_assume_abort_if_not_#in~cond_In-511450313|, ~x$w_buff1~0=~x$w_buff1~0_In-511450313, ~x$w_buff1_used~0=~x$w_buff1_used~0_In-511450313, ~x$r_buff1_thd0~0=~x$r_buff1_thd0~0_In-511450313, ~x~0=~x~0_In-511450313, ~x$w_buff0_used~0=~x$w_buff0_used~0_In-511450313} OutVars{~x$w_buff0~0=~x$w_buff0~0_In-511450313, ~x$r_buff0_thd0~0=~x$r_buff0_thd0~0_Out-511450313, ~x$w_buff1~0=~x$w_buff1~0_In-511450313, ~x$w_buff1_used~0=~x$w_buff1_used~0_Out-511450313, ~x$r_buff1_thd0~0=~x$r_buff1_thd0~0_Out-511450313, ULTIMATE.start_main_#t~ite43=|ULTIMATE.start_main_#t~ite43_Out-511450313|, ULTIMATE.start_main_#t~ite42=|ULTIMATE.start_main_#t~ite42_Out-511450313|, ULTIMATE.start_main_#t~ite45=|ULTIMATE.start_main_#t~ite45_Out-511450313|, ~x$w_buff0_used~0=~x$w_buff0_used~0_Out-511450313, ULTIMATE.start_main_#t~ite44=|ULTIMATE.start_main_#t~ite44_Out-511450313|, ULTIMATE.start_assume_abort_if_not_#in~cond=|ULTIMATE.start_assume_abort_if_not_#in~cond_In-511450313|, ULTIMATE.start_main_#t~ite41=|ULTIMATE.start_main_#t~ite41_Out-511450313|, ULTIMATE.start_main_#t~ite40=|ULTIMATE.start_main_#t~ite40_Out-511450313|, ULTIMATE.start_assume_abort_if_not_~cond=ULTIMATE.start_assume_abort_if_not_~cond_Out-511450313, ~x~0=~x~0_Out-511450313} AuxVars[] AssignedVars[~x$r_buff0_thd0~0, ULTIMATE.start_main_#t~ite41, ULTIMATE.start_main_#t~ite40, ULTIMATE.start_assume_abort_if_not_~cond, ~x$w_buff1_used~0, ~x$r_buff1_thd0~0, ULTIMATE.start_main_#t~ite43, ULTIMATE.start_main_#t~ite42, ~x~0, ULTIMATE.start_main_#t~ite45, ~x$w_buff0_used~0, ULTIMATE.start_main_#t~ite44] because there is no mapped edge [2020-10-16 12:11:40,422 WARN L219 RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented. [2020-10-16 12:11:40,422 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-16 12:11:40,424 WARN L219 RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented. [2020-10-16 12:11:40,424 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-16 12:11:40,424 WARN L219 RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented. [2020-10-16 12:11:40,424 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-16 12:11:40,424 WARN L219 RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented. [2020-10-16 12:11:40,424 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-16 12:11:40,425 WARN L219 RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented. [2020-10-16 12:11:40,425 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-16 12:11:40,425 WARN L219 RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented. [2020-10-16 12:11:40,425 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-16 12:11:40,426 WARN L219 RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented. [2020-10-16 12:11:40,426 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-16 12:11:40,426 WARN L219 RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented. [2020-10-16 12:11:40,426 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-16 12:11:40,427 WARN L219 RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented. [2020-10-16 12:11:40,427 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-16 12:11:40,427 WARN L219 RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented. [2020-10-16 12:11:40,427 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-16 12:11:40,427 WARN L219 RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented. [2020-10-16 12:11:40,428 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-16 12:11:40,428 WARN L219 RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented. [2020-10-16 12:11:40,428 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-16 12:11:40,428 WARN L219 RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented. [2020-10-16 12:11:40,428 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-16 12:11:40,429 WARN L219 RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented. [2020-10-16 12:11:40,429 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-16 12:11:40,429 WARN L219 RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented. [2020-10-16 12:11:40,429 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-16 12:11:40,429 WARN L219 RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented. [2020-10-16 12:11:40,430 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-16 12:11:40,430 WARN L219 RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented. [2020-10-16 12:11:40,430 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-16 12:11:40,430 WARN L219 RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented. [2020-10-16 12:11:40,430 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-16 12:11:40,431 WARN L219 RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented. [2020-10-16 12:11:40,431 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-16 12:11:40,431 WARN L219 RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented. [2020-10-16 12:11:40,431 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-16 12:11:40,431 WARN L219 RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented. [2020-10-16 12:11:40,432 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-16 12:11:40,432 WARN L219 RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented. [2020-10-16 12:11:40,432 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-16 12:11:40,482 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.10 12:11:40 BasicIcfg [2020-10-16 12:11:40,482 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-16 12:11:40,484 INFO L168 Benchmark]: Toolchain (without parser) took 8582.46 ms. Allocated memory was 140.5 MB in the beginning and 327.2 MB in the end (delta: 186.6 MB). Free memory was 101.9 MB in the beginning and 189.3 MB in the end (delta: -87.4 MB). Peak memory consumption was 99.3 MB. Max. memory is 7.1 GB. [2020-10-16 12:11:40,485 INFO L168 Benchmark]: CDTParser took 0.58 ms. Allocated memory is still 140.5 MB. Free memory was 122.0 MB in the beginning and 121.8 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. [2020-10-16 12:11:40,486 INFO L168 Benchmark]: CACSL2BoogieTranslator took 810.89 ms. Allocated memory was 140.5 MB in the beginning and 202.9 MB in the end (delta: 62.4 MB). Free memory was 101.7 MB in the beginning and 157.4 MB in the end (delta: -55.7 MB). Peak memory consumption was 26.7 MB. Max. memory is 7.1 GB. [2020-10-16 12:11:40,486 INFO L168 Benchmark]: Boogie Procedure Inliner took 62.64 ms. Allocated memory is still 202.9 MB. Free memory was 157.4 MB in the beginning and 154.8 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.6 MB. Max. memory is 7.1 GB. [2020-10-16 12:11:40,487 INFO L168 Benchmark]: Boogie Preprocessor took 44.02 ms. Allocated memory is still 202.9 MB. Free memory was 154.8 MB in the beginning and 152.8 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. [2020-10-16 12:11:40,488 INFO L168 Benchmark]: RCFGBuilder took 2106.91 ms. Allocated memory was 202.9 MB in the beginning and 248.0 MB in the end (delta: 45.1 MB). Free memory was 152.8 MB in the beginning and 194.5 MB in the end (delta: -41.7 MB). Peak memory consumption was 105.3 MB. Max. memory is 7.1 GB. [2020-10-16 12:11:40,489 INFO L168 Benchmark]: TraceAbstraction took 5552.22 ms. Allocated memory was 248.0 MB in the beginning and 327.2 MB in the end (delta: 79.2 MB). Free memory was 194.5 MB in the beginning and 189.3 MB in the end (delta: 5.3 MB). Peak memory consumption was 84.4 MB. Max. memory is 7.1 GB. [2020-10-16 12:11:40,495 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.58 ms. Allocated memory is still 140.5 MB. Free memory was 122.0 MB in the beginning and 121.8 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 810.89 ms. Allocated memory was 140.5 MB in the beginning and 202.9 MB in the end (delta: 62.4 MB). Free memory was 101.7 MB in the beginning and 157.4 MB in the end (delta: -55.7 MB). Peak memory consumption was 26.7 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 62.64 ms. Allocated memory is still 202.9 MB. Free memory was 157.4 MB in the beginning and 154.8 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.6 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 44.02 ms. Allocated memory is still 202.9 MB. Free memory was 154.8 MB in the beginning and 152.8 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 2106.91 ms. Allocated memory was 202.9 MB in the beginning and 248.0 MB in the end (delta: 45.1 MB). Free memory was 152.8 MB in the beginning and 194.5 MB in the end (delta: -41.7 MB). Peak memory consumption was 105.3 MB. Max. memory is 7.1 GB. * TraceAbstraction took 5552.22 ms. Allocated memory was 248.0 MB in the beginning and 327.2 MB in the end (delta: 79.2 MB). Free memory was 194.5 MB in the beginning and 189.3 MB in the end (delta: 5.3 MB). Peak memory consumption was 84.4 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 766 VarBasedMoverChecksPositive, 36 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 0 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 60 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 2.5s, 99 PlacesBefore, 35 PlacesAfterwards, 91 TransitionsBefore, 25 TransitionsAfterwards, 1544 CoEnabledTransitionPairs, 6 FixpointIterations, 31 TrivialSequentialCompositions, 37 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 3 ConcurrentYvCompositions, 2 ChoiceCompositions, 73 TotalNumberOfCompositions, 3682 MoverChecksTotal - CounterExampleResult [Line: 8]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L699] 0 int __unbuffered_cnt = 0; [L701] 0 int __unbuffered_p0_EAX = 0; [L702] 0 _Bool main$tmp_guard0; [L703] 0 _Bool main$tmp_guard1; [L705] 0 int x = 0; [L706] 0 _Bool x$flush_delayed; [L707] 0 int x$mem_tmp; [L708] 0 _Bool x$r_buff0_thd0; [L709] 0 _Bool x$r_buff0_thd1; [L710] 0 _Bool x$r_buff0_thd2; [L711] 0 _Bool x$r_buff0_thd3; [L712] 0 _Bool x$r_buff1_thd0; [L713] 0 _Bool x$r_buff1_thd1; [L714] 0 _Bool x$r_buff1_thd2; [L715] 0 _Bool x$r_buff1_thd3; [L716] 0 _Bool x$read_delayed; [L717] 0 int *x$read_delayed_var; [L718] 0 int x$w_buff0; [L719] 0 _Bool x$w_buff0_used; [L720] 0 int x$w_buff1; [L721] 0 _Bool x$w_buff1_used; [L723] 0 int y = 0; [L725] 0 int z = 0; [L726] 0 _Bool weak$$choice0; [L727] 0 _Bool weak$$choice2; [L818] 0 pthread_t t2513; [L819] FCALL, FORK 0 pthread_create(&t2513, ((void *)0), P0, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=0, x$r_buff0_thd3=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=0, x$w_buff0_used=0, x$w_buff1=0, x$w_buff1_used=0, y=0, z=0] [L820] 0 pthread_t t2514; [L821] FCALL, FORK 0 pthread_create(&t2514, ((void *)0), P1, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=0, x$r_buff0_thd3=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=0, x$w_buff0_used=0, x$w_buff1=0, x$w_buff1_used=0, y=0, z=0] [L822] 0 pthread_t t2515; [L761] 2 x$w_buff1 = x$w_buff0 [L762] 2 x$w_buff0 = 1 [L763] 2 x$w_buff1_used = x$w_buff0_used [L764] 2 x$w_buff0_used = (_Bool)1 [L8] COND FALSE 2 !(!expression) [L766] 2 x$r_buff1_thd0 = x$r_buff0_thd0 [L767] 2 x$r_buff1_thd1 = x$r_buff0_thd1 [L768] 2 x$r_buff1_thd2 = x$r_buff0_thd2 [L769] 2 x$r_buff1_thd3 = x$r_buff0_thd3 [L770] 2 x$r_buff0_thd2 = (_Bool)1 VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff0_thd3=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=1, x$w_buff0_used=1, x$w_buff1=0, x$w_buff1_used=0, y=0, z=0] [L773] 2 y = 1 VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff0_thd3=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=1, x$w_buff0_used=1, x$w_buff1=0, x$w_buff1_used=0, y=1, z=0] [L823] FCALL, FORK 0 pthread_create(&t2515, ((void *)0), P2, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff0_thd3=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=1, x$w_buff0_used=1, x$w_buff1=0, x$w_buff1_used=0, y=1, z=0] [L790] 3 y = 2 VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff0_thd3=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=1, x$w_buff0_used=1, x$w_buff1=0, x$w_buff1_used=0, y=2, z=0] [L793] 3 z = 1 VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff0_thd3=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=1, x$w_buff0_used=1, x$w_buff1=0, x$w_buff1_used=0, y=2, z=1] [L731] 1 z = 2 VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff0_thd3=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=1, x$w_buff0_used=1, x$w_buff1=0, x$w_buff1_used=0, y=2, z=2] [L796] EXPR 3 x$w_buff0_used && x$r_buff0_thd3 ? x$w_buff0 : (x$w_buff1_used && x$r_buff1_thd3 ? x$w_buff1 : x) [L796] 3 x = x$w_buff0_used && x$r_buff0_thd3 ? x$w_buff0 : (x$w_buff1_used && x$r_buff1_thd3 ? x$w_buff1 : x) [L797] EXPR 3 x$w_buff0_used && x$r_buff0_thd3 ? (_Bool)0 : x$w_buff0_used [L797] 3 x$w_buff0_used = x$w_buff0_used && x$r_buff0_thd3 ? (_Bool)0 : x$w_buff0_used [L798] EXPR 3 x$w_buff0_used && x$r_buff0_thd3 || x$w_buff1_used && x$r_buff1_thd3 ? (_Bool)0 : x$w_buff1_used [L798] 3 x$w_buff1_used = x$w_buff0_used && x$r_buff0_thd3 || x$w_buff1_used && x$r_buff1_thd3 ? (_Bool)0 : x$w_buff1_used [L799] EXPR 3 x$w_buff0_used && x$r_buff0_thd3 ? (_Bool)0 : x$r_buff0_thd3 [L799] 3 x$r_buff0_thd3 = x$w_buff0_used && x$r_buff0_thd3 ? (_Bool)0 : x$r_buff0_thd3 [L800] EXPR 3 x$w_buff0_used && x$r_buff0_thd3 || x$w_buff1_used && x$r_buff1_thd3 ? (_Bool)0 : x$r_buff1_thd3 [L800] 3 x$r_buff1_thd3 = x$w_buff0_used && x$r_buff0_thd3 || x$w_buff1_used && x$r_buff1_thd3 ? (_Bool)0 : x$r_buff1_thd3 [L803] 3 __unbuffered_cnt = __unbuffered_cnt + 1 [L805] 3 return 0; [L736] 1 weak$$choice0 = __VERIFIER_nondet_bool() [L737] 1 weak$$choice2 = __VERIFIER_nondet_bool() [L738] 1 x$flush_delayed = weak$$choice2 [L739] 1 x$mem_tmp = x [L740] EXPR 1 !x$w_buff0_used || !x$r_buff0_thd1 && !x$w_buff1_used || !x$r_buff0_thd1 && !x$r_buff1_thd1 ? x : (x$w_buff0_used && x$r_buff0_thd1 ? x$w_buff0 : x$w_buff1) [L740] 1 x = !x$w_buff0_used || !x$r_buff0_thd1 && !x$w_buff1_used || !x$r_buff0_thd1 && !x$r_buff1_thd1 ? x : (x$w_buff0_used && x$r_buff0_thd1 ? x$w_buff0 : x$w_buff1) [L741] EXPR 1 weak$$choice2 ? x$w_buff0 : (!x$w_buff0_used || !x$r_buff0_thd1 && !x$w_buff1_used || !x$r_buff0_thd1 && !x$r_buff1_thd1 ? x$w_buff0 : (x$w_buff0_used && x$r_buff0_thd1 ? x$w_buff0 : x$w_buff0)) [L741] 1 x$w_buff0 = weak$$choice2 ? x$w_buff0 : (!x$w_buff0_used || !x$r_buff0_thd1 && !x$w_buff1_used || !x$r_buff0_thd1 && !x$r_buff1_thd1 ? x$w_buff0 : (x$w_buff0_used && x$r_buff0_thd1 ? x$w_buff0 : x$w_buff0)) [L742] EXPR 1 weak$$choice2 ? x$w_buff1 : (!x$w_buff0_used || !x$r_buff0_thd1 && !x$w_buff1_used || !x$r_buff0_thd1 && !x$r_buff1_thd1 ? x$w_buff1 : (x$w_buff0_used && x$r_buff0_thd1 ? x$w_buff1 : x$w_buff1)) [L742] 1 x$w_buff1 = weak$$choice2 ? x$w_buff1 : (!x$w_buff0_used || !x$r_buff0_thd1 && !x$w_buff1_used || !x$r_buff0_thd1 && !x$r_buff1_thd1 ? x$w_buff1 : (x$w_buff0_used && x$r_buff0_thd1 ? x$w_buff1 : x$w_buff1)) [L743] EXPR 1 weak$$choice2 ? x$w_buff0_used : (!x$w_buff0_used || !x$r_buff0_thd1 && !x$w_buff1_used || !x$r_buff0_thd1 && !x$r_buff1_thd1 ? x$w_buff0_used : (x$w_buff0_used && x$r_buff0_thd1 ? (_Bool)0 : x$w_buff0_used)) [L743] EXPR 1 !x$w_buff0_used || !x$r_buff0_thd1 && !x$w_buff1_used || !x$r_buff0_thd1 && !x$r_buff1_thd1 ? x$w_buff0_used : (x$w_buff0_used && x$r_buff0_thd1 ? (_Bool)0 : x$w_buff0_used) [L743] EXPR 1 weak$$choice2 ? x$w_buff0_used : (!x$w_buff0_used || !x$r_buff0_thd1 && !x$w_buff1_used || !x$r_buff0_thd1 && !x$r_buff1_thd1 ? x$w_buff0_used : (x$w_buff0_used && x$r_buff0_thd1 ? (_Bool)0 : x$w_buff0_used)) [L743] 1 x$w_buff0_used = weak$$choice2 ? x$w_buff0_used : (!x$w_buff0_used || !x$r_buff0_thd1 && !x$w_buff1_used || !x$r_buff0_thd1 && !x$r_buff1_thd1 ? x$w_buff0_used : (x$w_buff0_used && x$r_buff0_thd1 ? (_Bool)0 : x$w_buff0_used)) [L744] EXPR 1 weak$$choice2 ? x$w_buff1_used : (!x$w_buff0_used || !x$r_buff0_thd1 && !x$w_buff1_used || !x$r_buff0_thd1 && !x$r_buff1_thd1 ? x$w_buff1_used : (x$w_buff0_used && x$r_buff0_thd1 ? (_Bool)0 : (_Bool)0)) [L744] EXPR 1 !x$w_buff0_used || !x$r_buff0_thd1 && !x$w_buff1_used || !x$r_buff0_thd1 && !x$r_buff1_thd1 ? x$w_buff1_used : (x$w_buff0_used && x$r_buff0_thd1 ? (_Bool)0 : (_Bool)0) [L744] EXPR 1 weak$$choice2 ? x$w_buff1_used : (!x$w_buff0_used || !x$r_buff0_thd1 && !x$w_buff1_used || !x$r_buff0_thd1 && !x$r_buff1_thd1 ? x$w_buff1_used : (x$w_buff0_used && x$r_buff0_thd1 ? (_Bool)0 : (_Bool)0)) [L744] 1 x$w_buff1_used = weak$$choice2 ? x$w_buff1_used : (!x$w_buff0_used || !x$r_buff0_thd1 && !x$w_buff1_used || !x$r_buff0_thd1 && !x$r_buff1_thd1 ? x$w_buff1_used : (x$w_buff0_used && x$r_buff0_thd1 ? (_Bool)0 : (_Bool)0)) [L745] EXPR 1 weak$$choice2 ? x$r_buff0_thd1 : (!x$w_buff0_used || !x$r_buff0_thd1 && !x$w_buff1_used || !x$r_buff0_thd1 && !x$r_buff1_thd1 ? x$r_buff0_thd1 : (x$w_buff0_used && x$r_buff0_thd1 ? (_Bool)0 : x$r_buff0_thd1)) [L745] 1 x$r_buff0_thd1 = weak$$choice2 ? x$r_buff0_thd1 : (!x$w_buff0_used || !x$r_buff0_thd1 && !x$w_buff1_used || !x$r_buff0_thd1 && !x$r_buff1_thd1 ? x$r_buff0_thd1 : (x$w_buff0_used && x$r_buff0_thd1 ? (_Bool)0 : x$r_buff0_thd1)) [L746] EXPR 1 weak$$choice2 ? x$r_buff1_thd1 : (!x$w_buff0_used || !x$r_buff0_thd1 && !x$w_buff1_used || !x$r_buff0_thd1 && !x$r_buff1_thd1 ? x$r_buff1_thd1 : (x$w_buff0_used && x$r_buff0_thd1 ? (_Bool)0 : (_Bool)0)) [L746] EXPR 1 !x$w_buff0_used || !x$r_buff0_thd1 && !x$w_buff1_used || !x$r_buff0_thd1 && !x$r_buff1_thd1 ? x$r_buff1_thd1 : (x$w_buff0_used && x$r_buff0_thd1 ? (_Bool)0 : (_Bool)0) [L746] EXPR 1 weak$$choice2 ? x$r_buff1_thd1 : (!x$w_buff0_used || !x$r_buff0_thd1 && !x$w_buff1_used || !x$r_buff0_thd1 && !x$r_buff1_thd1 ? x$r_buff1_thd1 : (x$w_buff0_used && x$r_buff0_thd1 ? (_Bool)0 : (_Bool)0)) [L746] 1 x$r_buff1_thd1 = weak$$choice2 ? x$r_buff1_thd1 : (!x$w_buff0_used || !x$r_buff0_thd1 && !x$w_buff1_used || !x$r_buff0_thd1 && !x$r_buff1_thd1 ? x$r_buff1_thd1 : (x$w_buff0_used && x$r_buff0_thd1 ? (_Bool)0 : (_Bool)0)) [L747] 1 __unbuffered_p0_EAX = x [L748] EXPR 1 x$flush_delayed ? x$mem_tmp : x [L748] 1 x = x$flush_delayed ? x$mem_tmp : x [L749] 1 x$flush_delayed = (_Bool)0 VAL [\result={0:0}, __unbuffered_cnt=1, __unbuffered_p0_EAX=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=2, weak$$choice2=1, x=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff0_thd3=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=1, x$w_buff0_used=1, x$w_buff1=0, x$w_buff1_used=0, y=2, z=2] [L776] EXPR 2 x$w_buff0_used && x$r_buff0_thd2 ? x$w_buff0 : (x$w_buff1_used && x$r_buff1_thd2 ? x$w_buff1 : x) [L776] 2 x = x$w_buff0_used && x$r_buff0_thd2 ? x$w_buff0 : (x$w_buff1_used && x$r_buff1_thd2 ? x$w_buff1 : x) [L777] EXPR 2 x$w_buff0_used && x$r_buff0_thd2 ? (_Bool)0 : x$w_buff0_used [L777] 2 x$w_buff0_used = x$w_buff0_used && x$r_buff0_thd2 ? (_Bool)0 : x$w_buff0_used [L778] EXPR 2 x$w_buff0_used && x$r_buff0_thd2 || x$w_buff1_used && x$r_buff1_thd2 ? (_Bool)0 : x$w_buff1_used [L778] 2 x$w_buff1_used = x$w_buff0_used && x$r_buff0_thd2 || x$w_buff1_used && x$r_buff1_thd2 ? (_Bool)0 : x$w_buff1_used [L779] EXPR 2 x$w_buff0_used && x$r_buff0_thd2 ? (_Bool)0 : x$r_buff0_thd2 [L779] 2 x$r_buff0_thd2 = x$w_buff0_used && x$r_buff0_thd2 ? (_Bool)0 : x$r_buff0_thd2 [L780] EXPR 2 x$w_buff0_used && x$r_buff0_thd2 || x$w_buff1_used && x$r_buff1_thd2 ? (_Bool)0 : x$r_buff1_thd2 [L780] 2 x$r_buff1_thd2 = x$w_buff0_used && x$r_buff0_thd2 || x$w_buff1_used && x$r_buff1_thd2 ? (_Bool)0 : x$r_buff1_thd2 [L783] 2 __unbuffered_cnt = __unbuffered_cnt + 1 [L785] 2 return 0; [L754] 1 __unbuffered_cnt = __unbuffered_cnt + 1 [L756] 1 return 0; [L825] 0 main$tmp_guard0 = __unbuffered_cnt == 3 [L836] 0 main$tmp_guard1 = !(y == 2 && z == 2 && __unbuffered_p0_EAX == 0) [L8] COND TRUE 0 !expression [L8] 0 __VERIFIER_error() VAL [\result={0:0}, \result={0:0}, __unbuffered_cnt=3, __unbuffered_p0_EAX=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, weak$$choice0=2, weak$$choice2=1, x=1, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff0_thd3=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=1, x$w_buff0_used=0, x$w_buff1=0, x$w_buff1_used=0, y=2, z=2] - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 90 locations, 2 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 5.2s, OverallIterations: 11, TraceHistogramMax: 1, AutomataDifference: 0.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.6s, HoareTripleCheckerStatistics: 233 SDtfs, 195 SDslu, 354 SDs, 0 SdLazy, 167 SolverSat, 41 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 36 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=658occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 10 MinimizatonAttempts, 15 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 0.9s InterpolantComputationTime, 156 NumberOfCodeBlocks, 156 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 126 ConstructedInterpolants, 0 QuantifiedInterpolants, 11468 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...