/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/mix043_pso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-b09bf87 [2020-10-16 12:03:00,523 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-16 12:03:00,526 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-16 12:03:00,549 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-16 12:03:00,549 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-16 12:03:00,550 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-16 12:03:00,552 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-16 12:03:00,553 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-16 12:03:00,555 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-16 12:03:00,556 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-16 12:03:00,557 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-16 12:03:00,558 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-16 12:03:00,558 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-16 12:03:00,559 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-16 12:03:00,560 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-16 12:03:00,561 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-16 12:03:00,562 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-16 12:03:00,563 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-16 12:03:00,564 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-16 12:03:00,566 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-16 12:03:00,567 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-16 12:03:00,568 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-16 12:03:00,570 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-16 12:03:00,570 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-16 12:03:00,573 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-16 12:03:00,573 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-16 12:03:00,573 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-16 12:03:00,575 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-16 12:03:00,576 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-16 12:03:00,577 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-16 12:03:00,577 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-16 12:03:00,578 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-16 12:03:00,579 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-16 12:03:00,580 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-16 12:03:00,582 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-16 12:03:00,582 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-16 12:03:00,583 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-16 12:03:00,583 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-16 12:03:00,583 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-16 12:03:00,584 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-16 12:03:00,590 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-16 12:03:00,591 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 12:03:00,633 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-16 12:03:00,633 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-16 12:03:00,635 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-16 12:03:00,635 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-16 12:03:00,635 INFO L138 SettingsManager]: * Use SBE=true [2020-10-16 12:03:00,636 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-16 12:03:00,636 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-16 12:03:00,636 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-16 12:03:00,636 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-16 12:03:00,636 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-16 12:03:00,637 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-16 12:03:00,638 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-16 12:03:00,638 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-16 12:03:00,638 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-16 12:03:00,639 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-16 12:03:00,639 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-16 12:03:00,640 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-16 12:03:00,640 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-16 12:03:00,640 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-16 12:03:00,640 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-16 12:03:00,640 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-16 12:03:00,641 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-16 12:03:00,641 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-16 12:03:00,641 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_NestedInterpolation [2020-10-16 12:03:00,641 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-16 12:03:00,641 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-16 12:03:00,642 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-16 12:03:00,642 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=VARIABLE_BASED_MOVER_CHECK [2020-10-16 12:03:00,642 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-16 12:03:00,958 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-16 12:03:00,969 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-16 12:03:00,974 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-16 12:03:00,976 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-16 12:03:00,979 INFO L275 PluginConnector]: CDTParser initialized [2020-10-16 12:03:00,980 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/mix043_pso.opt.i [2020-10-16 12:03:01,054 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/6ddb385bc/85d81e2a87014ba99287270e659d8079/FLAG48526436e [2020-10-16 12:03:01,640 INFO L306 CDTParser]: Found 1 translation units. [2020-10-16 12:03:01,641 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/pthread-wmm/mix043_pso.opt.i [2020-10-16 12:03:01,658 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/6ddb385bc/85d81e2a87014ba99287270e659d8079/FLAG48526436e [2020-10-16 12:03:01,816 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/6ddb385bc/85d81e2a87014ba99287270e659d8079 [2020-10-16 12:03:01,826 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-16 12:03:01,828 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-10-16 12:03:01,829 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-16 12:03:01,830 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-16 12:03:01,833 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-16 12:03:01,834 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 12:03:01" (1/1) ... [2020-10-16 12:03:01,837 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@13a6b2ae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:03:01, skipping insertion in model container [2020-10-16 12:03:01,838 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 12:03:01" (1/1) ... [2020-10-16 12:03:01,846 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-16 12:03:01,890 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-16 12:03:02,422 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-16 12:03:02,436 INFO L203 MainTranslator]: Completed pre-run [2020-10-16 12:03:02,522 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-16 12:03:02,601 INFO L208 MainTranslator]: Completed translation [2020-10-16 12:03:02,602 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:03:02 WrapperNode [2020-10-16 12:03:02,602 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-16 12:03:02,603 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-16 12:03:02,603 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-16 12:03:02,603 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-16 12:03:02,612 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:03:02" (1/1) ... [2020-10-16 12:03:02,632 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:03:02" (1/1) ... [2020-10-16 12:03:02,668 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-16 12:03:02,669 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-16 12:03:02,669 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-16 12:03:02,669 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-16 12:03:02,678 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:03:02" (1/1) ... [2020-10-16 12:03:02,678 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:03:02" (1/1) ... [2020-10-16 12:03:02,683 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:03:02" (1/1) ... [2020-10-16 12:03:02,683 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:03:02" (1/1) ... [2020-10-16 12:03:02,694 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:03:02" (1/1) ... [2020-10-16 12:03:02,698 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:03:02" (1/1) ... [2020-10-16 12:03:02,702 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:03:02" (1/1) ... [2020-10-16 12:03:02,707 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-16 12:03:02,708 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-16 12:03:02,708 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-16 12:03:02,708 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-16 12:03:02,709 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:03:02" (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 12:03:02,779 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-16 12:03:02,779 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-10-16 12:03:02,780 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-16 12:03:02,780 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-16 12:03:02,780 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-10-16 12:03:02,781 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-10-16 12:03:02,781 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-10-16 12:03:02,782 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-10-16 12:03:02,782 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-10-16 12:03:02,783 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-10-16 12:03:02,785 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2020-10-16 12:03:02,786 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2020-10-16 12:03:02,786 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-10-16 12:03:02,786 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-16 12:03:02,786 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-16 12:03:02,789 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 12:03:04,877 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-16 12:03:04,877 INFO L298 CfgBuilder]: Removed 10 assume(true) statements. [2020-10-16 12:03:04,880 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 12:03:04 BoogieIcfgContainer [2020-10-16 12:03:04,880 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-16 12:03:04,882 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-16 12:03:04,882 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-16 12:03:04,887 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-16 12:03:04,888 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.10 12:03:01" (1/3) ... [2020-10-16 12:03:04,889 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@18008052 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 12:03:04, skipping insertion in model container [2020-10-16 12:03:04,889 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:03:02" (2/3) ... [2020-10-16 12:03:04,890 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@18008052 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 12:03:04, skipping insertion in model container [2020-10-16 12:03:04,890 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 12:03:04" (3/3) ... [2020-10-16 12:03:04,893 INFO L111 eAbstractionObserver]: Analyzing ICFG mix043_pso.opt.i [2020-10-16 12:03:04,906 WARN L153 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-10-16 12:03:04,907 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-16 12:03:04,917 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2020-10-16 12:03:04,918 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-10-16 12:03:04,970 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:03:04,970 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:03:04,971 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:03:04,971 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:03:04,972 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:03:04,972 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:03:04,972 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:03:04,972 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:03:04,973 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:03:04,973 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:03:04,973 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:03:04,973 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:03:04,974 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:03:04,974 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:03:04,974 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:03:04,974 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:03:04,975 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:03:04,975 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:03:04,975 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:03:04,975 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:03:04,975 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:03:04,976 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:03:04,976 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:03:04,977 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:03:04,977 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:03:04,977 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:03:04,978 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:03:04,978 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:03:04,978 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:03:04,978 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork2___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:03:04,978 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:03:04,979 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork2___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:03:04,979 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:03:04,980 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:03:04,980 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:03:04,981 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:03:04,981 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:03:04,981 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:03:04,983 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:03:04,983 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:03:04,983 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:03:04,984 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:03:04,991 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:03:04,991 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:03:04,991 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:03:04,992 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:03:04,995 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:03:04,995 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:03:04,995 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:03:04,995 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:03:04,996 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:03:04,996 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:03:04,996 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:03:04,996 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:03:04,996 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:03:04,997 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:03:05,000 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork2___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:03:05,000 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:03:05,000 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:03:05,000 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:03:05,000 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:03:05,001 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:03:05,001 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:03:05,001 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:03:05,001 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:03:05,001 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:03:05,002 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:03:05,002 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:03:05,005 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:03:05,005 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:03:05,006 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:03:05,006 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:03:05,008 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2020-10-16 12:03:05,024 INFO L253 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2020-10-16 12:03:05,049 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-16 12:03:05,049 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-16 12:03:05,049 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-16 12:03:05,049 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-16 12:03:05,049 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-16 12:03:05,049 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-16 12:03:05,050 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-16 12:03:05,050 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-16 12:03:05,069 INFO L137 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2020-10-16 12:03:05,070 INFO L144 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 124 places, 113 transitions, 246 flow [2020-10-16 12:03:05,073 INFO L111 LiptonReduction]: Starting Lipton reduction on Petri net that has 124 places, 113 transitions, 246 flow [2020-10-16 12:03:05,075 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 124 places, 113 transitions, 246 flow [2020-10-16 12:03:05,128 INFO L129 PetriNetUnfolder]: 2/109 cut-off events. [2020-10-16 12:03:05,129 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-10-16 12:03:05,134 INFO L80 FinitePrefix]: Finished finitePrefix Result has 122 conditions, 109 events. 2/109 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 78 event pairs, 0 based on Foata normal form. 0/105 useless extension candidates. Maximal degree in co-relation 75. Up to 2 conditions per place. [2020-10-16 12:03:05,138 INFO L117 LiptonReduction]: Number of co-enabled transitions 2540 [2020-10-16 12:03:06,606 WARN L193 SmtUtils]: Spent 1.26 s on a formula simplification. DAG size of input: 230 DAG size of output: 190 [2020-10-16 12:03:06,655 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[3, 2, 6, 5, 2, 2, 1] term [2020-10-16 12:03:06,656 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-10-16 12:03:06,658 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[3, 2, 6, 5, 1] term [2020-10-16 12:03:06,659 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-10-16 12:03:07,518 WARN L193 SmtUtils]: Spent 837.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 127 [2020-10-16 12:03:08,339 WARN L193 SmtUtils]: Spent 247.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 60 [2020-10-16 12:03:08,448 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 55 [2020-10-16 12:03:09,522 WARN L193 SmtUtils]: Spent 547.00 ms on a formula simplification that was a NOOP. DAG size: 127 [2020-10-16 12:03:10,080 WARN L193 SmtUtils]: Spent 554.00 ms on a formula simplification that was a NOOP. DAG size: 127 [2020-10-16 12:03:10,801 WARN L193 SmtUtils]: Spent 718.00 ms on a formula simplification. DAG size of input: 131 DAG size of output: 122 [2020-10-16 12:03:11,089 WARN L193 SmtUtils]: Spent 283.00 ms on a formula simplification that was a NOOP. DAG size: 119 [2020-10-16 12:03:11,491 WARN L193 SmtUtils]: Spent 348.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2020-10-16 12:03:11,812 WARN L193 SmtUtils]: Spent 316.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2020-10-16 12:03:12,594 WARN L193 SmtUtils]: Spent 680.00 ms on a formula simplification. DAG size of input: 130 DAG size of output: 112 [2020-10-16 12:03:12,940 WARN L193 SmtUtils]: Spent 342.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2020-10-16 12:03:13,425 WARN L193 SmtUtils]: Spent 297.00 ms on a formula simplification that was a NOOP. DAG size: 130 [2020-10-16 12:03:13,755 WARN L193 SmtUtils]: Spent 325.00 ms on a formula simplification that was a NOOP. DAG size: 130 [2020-10-16 12:03:14,212 WARN L193 SmtUtils]: Spent 331.00 ms on a formula simplification that was a NOOP. DAG size: 136 [2020-10-16 12:03:14,550 WARN L193 SmtUtils]: Spent 334.00 ms on a formula simplification that was a NOOP. DAG size: 134 [2020-10-16 12:03:14,850 WARN L193 SmtUtils]: Spent 297.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 99 [2020-10-16 12:03:14,990 WARN L193 SmtUtils]: Spent 137.00 ms on a formula simplification that was a NOOP. DAG size: 97 [2020-10-16 12:03:15,004 INFO L132 LiptonReduction]: Checked pairs total: 6282 [2020-10-16 12:03:15,005 INFO L134 LiptonReduction]: Total number of compositions: 91 [2020-10-16 12:03:15,012 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 45 places, 32 transitions, 84 flow [2020-10-16 12:03:15,208 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 3002 states. [2020-10-16 12:03:15,211 INFO L276 IsEmpty]: Start isEmpty. Operand 3002 states. [2020-10-16 12:03:15,220 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-10-16 12:03:15,221 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 12:03:15,222 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 12:03:15,222 INFO L429 AbstractCegarLoop]: === Iteration 1 === [P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 12:03:15,228 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 12:03:15,229 INFO L82 PathProgramCache]: Analyzing trace with hash 1043443489, now seen corresponding path program 1 times [2020-10-16 12:03:15,240 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 12:03:15,240 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [893617865] [2020-10-16 12:03:15,241 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 12:03:15,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 12:03:15,550 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 12:03:15,551 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [893617865] [2020-10-16 12:03:15,553 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 12:03:15,553 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-10-16 12:03:15,554 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1731897202] [2020-10-16 12:03:15,560 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-16 12:03:15,561 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 12:03:15,577 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-16 12:03:15,578 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-16 12:03:15,580 INFO L87 Difference]: Start difference. First operand 3002 states. Second operand 3 states. [2020-10-16 12:03:15,756 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 12:03:15,756 INFO L93 Difference]: Finished difference Result 2602 states and 10064 transitions. [2020-10-16 12:03:15,757 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-16 12:03:15,759 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 9 [2020-10-16 12:03:15,759 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 12:03:15,801 INFO L225 Difference]: With dead ends: 2602 [2020-10-16 12:03:15,802 INFO L226 Difference]: Without dead ends: 2122 [2020-10-16 12:03:15,803 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 12:03:15,840 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2122 states. [2020-10-16 12:03:15,956 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2122 to 2122. [2020-10-16 12:03:15,958 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2122 states. [2020-10-16 12:03:15,976 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2122 states to 2122 states and 8080 transitions. [2020-10-16 12:03:15,977 INFO L78 Accepts]: Start accepts. Automaton has 2122 states and 8080 transitions. Word has length 9 [2020-10-16 12:03:15,978 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 12:03:15,979 INFO L481 AbstractCegarLoop]: Abstraction has 2122 states and 8080 transitions. [2020-10-16 12:03:15,979 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-16 12:03:15,979 INFO L276 IsEmpty]: Start isEmpty. Operand 2122 states and 8080 transitions. [2020-10-16 12:03:15,982 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-10-16 12:03:15,982 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 12:03:15,982 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 12:03:15,982 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-16 12:03:15,983 INFO L429 AbstractCegarLoop]: === Iteration 2 === [P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 12:03:15,983 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 12:03:15,983 INFO L82 PathProgramCache]: Analyzing trace with hash 2021870059, now seen corresponding path program 1 times [2020-10-16 12:03:15,983 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 12:03:15,984 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [967720032] [2020-10-16 12:03:15,984 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 12:03:16,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 12:03:16,132 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 12:03:16,133 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [967720032] [2020-10-16 12:03:16,133 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 12:03:16,133 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-10-16 12:03:16,133 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1863405140] [2020-10-16 12:03:16,136 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-16 12:03:16,136 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 12:03:16,136 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-16 12:03:16,136 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-16 12:03:16,137 INFO L87 Difference]: Start difference. First operand 2122 states and 8080 transitions. Second operand 3 states. [2020-10-16 12:03:16,226 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 12:03:16,227 INFO L93 Difference]: Finished difference Result 2042 states and 7736 transitions. [2020-10-16 12:03:16,228 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-16 12:03:16,229 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 11 [2020-10-16 12:03:16,229 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 12:03:16,252 INFO L225 Difference]: With dead ends: 2042 [2020-10-16 12:03:16,252 INFO L226 Difference]: Without dead ends: 2042 [2020-10-16 12:03:16,253 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 12:03:16,270 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2042 states. [2020-10-16 12:03:16,358 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2042 to 2042. [2020-10-16 12:03:16,358 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2042 states. [2020-10-16 12:03:16,374 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2042 states to 2042 states and 7736 transitions. [2020-10-16 12:03:16,375 INFO L78 Accepts]: Start accepts. Automaton has 2042 states and 7736 transitions. Word has length 11 [2020-10-16 12:03:16,375 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 12:03:16,375 INFO L481 AbstractCegarLoop]: Abstraction has 2042 states and 7736 transitions. [2020-10-16 12:03:16,375 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-16 12:03:16,375 INFO L276 IsEmpty]: Start isEmpty. Operand 2042 states and 7736 transitions. [2020-10-16 12:03:16,383 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-10-16 12:03:16,383 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 12:03:16,383 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 12:03:16,384 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-16 12:03:16,384 INFO L429 AbstractCegarLoop]: === Iteration 3 === [P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 12:03:16,384 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 12:03:16,384 INFO L82 PathProgramCache]: Analyzing trace with hash -1746554386, now seen corresponding path program 1 times [2020-10-16 12:03:16,385 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 12:03:16,385 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [482856285] [2020-10-16 12:03:16,385 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 12:03:16,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 12:03:16,474 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 12:03:16,474 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [482856285] [2020-10-16 12:03:16,475 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 12:03:16,475 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-16 12:03:16,475 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [165504856] [2020-10-16 12:03:16,476 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-16 12:03:16,476 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 12:03:16,476 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-16 12:03:16,477 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-16 12:03:16,477 INFO L87 Difference]: Start difference. First operand 2042 states and 7736 transitions. Second operand 4 states. [2020-10-16 12:03:16,550 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 12:03:16,550 INFO L93 Difference]: Finished difference Result 1962 states and 7392 transitions. [2020-10-16 12:03:16,551 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-16 12:03:16,552 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 12 [2020-10-16 12:03:16,552 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 12:03:16,570 INFO L225 Difference]: With dead ends: 1962 [2020-10-16 12:03:16,570 INFO L226 Difference]: Without dead ends: 1962 [2020-10-16 12:03:16,570 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 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 12:03:16,581 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1962 states. [2020-10-16 12:03:16,633 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1962 to 1962. [2020-10-16 12:03:16,633 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1962 states. [2020-10-16 12:03:16,645 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1962 states to 1962 states and 7392 transitions. [2020-10-16 12:03:16,645 INFO L78 Accepts]: Start accepts. Automaton has 1962 states and 7392 transitions. Word has length 12 [2020-10-16 12:03:16,645 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 12:03:16,646 INFO L481 AbstractCegarLoop]: Abstraction has 1962 states and 7392 transitions. [2020-10-16 12:03:16,646 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-16 12:03:16,646 INFO L276 IsEmpty]: Start isEmpty. Operand 1962 states and 7392 transitions. [2020-10-16 12:03:16,648 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-10-16 12:03:16,648 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 12:03:16,648 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 12:03:16,648 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-16 12:03:16,649 INFO L429 AbstractCegarLoop]: === Iteration 4 === [P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 12:03:16,649 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 12:03:16,649 INFO L82 PathProgramCache]: Analyzing trace with hash 1691310603, now seen corresponding path program 1 times [2020-10-16 12:03:16,649 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 12:03:16,650 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1710594042] [2020-10-16 12:03:16,650 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 12:03:16,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 12:03:16,764 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 12:03:16,765 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1710594042] [2020-10-16 12:03:16,765 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 12:03:16,766 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-16 12:03:16,766 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1042476923] [2020-10-16 12:03:16,766 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-16 12:03:16,766 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 12:03:16,767 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-16 12:03:16,767 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-16 12:03:16,767 INFO L87 Difference]: Start difference. First operand 1962 states and 7392 transitions. Second operand 5 states. [2020-10-16 12:03:16,852 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 12:03:16,852 INFO L93 Difference]: Finished difference Result 1898 states and 7104 transitions. [2020-10-16 12:03:16,853 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-16 12:03:16,854 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 13 [2020-10-16 12:03:16,854 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 12:03:16,870 INFO L225 Difference]: With dead ends: 1898 [2020-10-16 12:03:16,870 INFO L226 Difference]: Without dead ends: 1898 [2020-10-16 12:03:16,871 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-16 12:03:16,880 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1898 states. [2020-10-16 12:03:16,926 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1898 to 1898. [2020-10-16 12:03:16,927 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1898 states. [2020-10-16 12:03:16,936 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1898 states to 1898 states and 7104 transitions. [2020-10-16 12:03:16,936 INFO L78 Accepts]: Start accepts. Automaton has 1898 states and 7104 transitions. Word has length 13 [2020-10-16 12:03:16,937 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 12:03:16,937 INFO L481 AbstractCegarLoop]: Abstraction has 1898 states and 7104 transitions. [2020-10-16 12:03:16,937 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-16 12:03:16,937 INFO L276 IsEmpty]: Start isEmpty. Operand 1898 states and 7104 transitions. [2020-10-16 12:03:16,998 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-10-16 12:03:16,999 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 12:03:16,999 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 12:03:16,999 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-16 12:03:16,999 INFO L429 AbstractCegarLoop]: === Iteration 5 === [P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 12:03:17,000 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 12:03:17,000 INFO L82 PathProgramCache]: Analyzing trace with hash 1849378380, now seen corresponding path program 1 times [2020-10-16 12:03:17,000 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 12:03:17,001 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [598010781] [2020-10-16 12:03:17,001 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 12:03:17,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 12:03:17,107 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 12:03:17,108 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [598010781] [2020-10-16 12:03:17,108 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 12:03:17,108 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-16 12:03:17,109 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1442813384] [2020-10-16 12:03:17,109 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-16 12:03:17,109 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 12:03:17,109 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-16 12:03:17,110 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-16 12:03:17,110 INFO L87 Difference]: Start difference. First operand 1898 states and 7104 transitions. Second operand 4 states. [2020-10-16 12:03:17,195 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 12:03:17,195 INFO L93 Difference]: Finished difference Result 1946 states and 6628 transitions. [2020-10-16 12:03:17,196 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-16 12:03:17,196 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 15 [2020-10-16 12:03:17,196 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 12:03:17,208 INFO L225 Difference]: With dead ends: 1946 [2020-10-16 12:03:17,209 INFO L226 Difference]: Without dead ends: 1466 [2020-10-16 12:03:17,209 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 12:03:17,217 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1466 states. [2020-10-16 12:03:17,260 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1466 to 1466. [2020-10-16 12:03:17,260 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1466 states. [2020-10-16 12:03:17,266 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1466 states to 1466 states and 4944 transitions. [2020-10-16 12:03:17,267 INFO L78 Accepts]: Start accepts. Automaton has 1466 states and 4944 transitions. Word has length 15 [2020-10-16 12:03:17,267 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 12:03:17,267 INFO L481 AbstractCegarLoop]: Abstraction has 1466 states and 4944 transitions. [2020-10-16 12:03:17,267 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-16 12:03:17,268 INFO L276 IsEmpty]: Start isEmpty. Operand 1466 states and 4944 transitions. [2020-10-16 12:03:17,270 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-10-16 12:03:17,271 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 12:03:17,271 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 12:03:17,271 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-16 12:03:17,271 INFO L429 AbstractCegarLoop]: === Iteration 6 === [P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 12:03:17,272 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 12:03:17,272 INFO L82 PathProgramCache]: Analyzing trace with hash -619361382, now seen corresponding path program 1 times [2020-10-16 12:03:17,272 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 12:03:17,272 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [993821413] [2020-10-16 12:03:17,273 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 12:03:17,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 12:03:17,399 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 12:03:17,400 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [993821413] [2020-10-16 12:03:17,400 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 12:03:17,400 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-16 12:03:17,401 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [451201472] [2020-10-16 12:03:17,401 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-16 12:03:17,401 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 12:03:17,401 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-16 12:03:17,402 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-16 12:03:17,402 INFO L87 Difference]: Start difference. First operand 1466 states and 4944 transitions. Second operand 5 states. [2020-10-16 12:03:17,459 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 12:03:17,459 INFO L93 Difference]: Finished difference Result 1253 states and 3877 transitions. [2020-10-16 12:03:17,460 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-16 12:03:17,460 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 16 [2020-10-16 12:03:17,460 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 12:03:17,467 INFO L225 Difference]: With dead ends: 1253 [2020-10-16 12:03:17,467 INFO L226 Difference]: Without dead ends: 953 [2020-10-16 12:03:17,468 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 12:03:17,472 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 953 states. [2020-10-16 12:03:17,491 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 953 to 953. [2020-10-16 12:03:17,491 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 953 states. [2020-10-16 12:03:17,494 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 953 states to 953 states and 2892 transitions. [2020-10-16 12:03:17,495 INFO L78 Accepts]: Start accepts. Automaton has 953 states and 2892 transitions. Word has length 16 [2020-10-16 12:03:17,495 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 12:03:17,495 INFO L481 AbstractCegarLoop]: Abstraction has 953 states and 2892 transitions. [2020-10-16 12:03:17,495 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-16 12:03:17,495 INFO L276 IsEmpty]: Start isEmpty. Operand 953 states and 2892 transitions. [2020-10-16 12:03:17,497 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-10-16 12:03:17,498 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 12:03:17,498 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 12:03:17,498 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-16 12:03:17,498 INFO L429 AbstractCegarLoop]: === Iteration 7 === [P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 12:03:17,498 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 12:03:17,499 INFO L82 PathProgramCache]: Analyzing trace with hash -447792567, now seen corresponding path program 1 times [2020-10-16 12:03:17,499 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 12:03:17,499 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1446481542] [2020-10-16 12:03:17,499 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 12:03:17,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 12:03:17,548 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 12:03:17,548 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1446481542] [2020-10-16 12:03:17,550 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 12:03:17,551 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-16 12:03:17,551 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [532158642] [2020-10-16 12:03:17,551 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-16 12:03:17,551 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 12:03:17,552 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-16 12:03:17,552 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-16 12:03:17,552 INFO L87 Difference]: Start difference. First operand 953 states and 2892 transitions. Second operand 4 states. [2020-10-16 12:03:17,575 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 12:03:17,576 INFO L93 Difference]: Finished difference Result 1269 states and 3758 transitions. [2020-10-16 12:03:17,577 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-16 12:03:17,577 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 19 [2020-10-16 12:03:17,577 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 12:03:17,584 INFO L225 Difference]: With dead ends: 1269 [2020-10-16 12:03:17,584 INFO L226 Difference]: Without dead ends: 977 [2020-10-16 12:03:17,585 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 12:03:17,589 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 977 states. [2020-10-16 12:03:17,607 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 977 to 953. [2020-10-16 12:03:17,607 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 953 states. [2020-10-16 12:03:17,610 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 953 states to 953 states and 2812 transitions. [2020-10-16 12:03:17,610 INFO L78 Accepts]: Start accepts. Automaton has 953 states and 2812 transitions. Word has length 19 [2020-10-16 12:03:17,610 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 12:03:17,611 INFO L481 AbstractCegarLoop]: Abstraction has 953 states and 2812 transitions. [2020-10-16 12:03:17,611 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-16 12:03:17,611 INFO L276 IsEmpty]: Start isEmpty. Operand 953 states and 2812 transitions. [2020-10-16 12:03:17,613 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-10-16 12:03:17,613 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 12:03:17,613 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 12:03:17,613 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-16 12:03:17,614 INFO L429 AbstractCegarLoop]: === Iteration 8 === [P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 12:03:17,614 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 12:03:17,614 INFO L82 PathProgramCache]: Analyzing trace with hash 892055233, now seen corresponding path program 2 times [2020-10-16 12:03:17,614 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 12:03:17,615 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1425038122] [2020-10-16 12:03:17,615 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 12:03:17,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 12:03:17,688 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 12:03:17,689 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1425038122] [2020-10-16 12:03:17,689 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 12:03:17,689 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-16 12:03:17,689 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1752927846] [2020-10-16 12:03:17,690 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-16 12:03:17,690 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 12:03:17,690 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-16 12:03:17,690 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-10-16 12:03:17,691 INFO L87 Difference]: Start difference. First operand 953 states and 2812 transitions. Second operand 6 states. [2020-10-16 12:03:17,754 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 12:03:17,754 INFO L93 Difference]: Finished difference Result 827 states and 2409 transitions. [2020-10-16 12:03:17,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-16 12:03:17,755 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 19 [2020-10-16 12:03:17,755 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 12:03:17,761 INFO L225 Difference]: With dead ends: 827 [2020-10-16 12:03:17,761 INFO L226 Difference]: Without dead ends: 728 [2020-10-16 12:03:17,761 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 12:03:17,765 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 728 states. [2020-10-16 12:03:17,778 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 728 to 728. [2020-10-16 12:03:17,778 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 728 states. [2020-10-16 12:03:17,781 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 728 states to 728 states and 2155 transitions. [2020-10-16 12:03:17,781 INFO L78 Accepts]: Start accepts. Automaton has 728 states and 2155 transitions. Word has length 19 [2020-10-16 12:03:17,781 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 12:03:17,782 INFO L481 AbstractCegarLoop]: Abstraction has 728 states and 2155 transitions. [2020-10-16 12:03:17,782 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-16 12:03:17,782 INFO L276 IsEmpty]: Start isEmpty. Operand 728 states and 2155 transitions. [2020-10-16 12:03:17,784 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-10-16 12:03:17,784 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 12:03:17,785 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 12:03:17,785 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-16 12:03:17,785 INFO L429 AbstractCegarLoop]: === Iteration 9 === [P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 12:03:17,785 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 12:03:17,785 INFO L82 PathProgramCache]: Analyzing trace with hash 1449811427, now seen corresponding path program 1 times [2020-10-16 12:03:17,786 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 12:03:17,786 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1844790202] [2020-10-16 12:03:17,786 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 12:03:17,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 12:03:17,867 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 12:03:17,867 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1844790202] [2020-10-16 12:03:17,868 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 12:03:17,868 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-16 12:03:17,868 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1189222251] [2020-10-16 12:03:17,868 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-16 12:03:17,869 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 12:03:17,869 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-16 12:03:17,869 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-10-16 12:03:17,869 INFO L87 Difference]: Start difference. First operand 728 states and 2155 transitions. Second operand 7 states. [2020-10-16 12:03:17,948 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 12:03:17,948 INFO L93 Difference]: Finished difference Result 701 states and 2100 transitions. [2020-10-16 12:03:17,949 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-16 12:03:17,949 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 22 [2020-10-16 12:03:17,950 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 12:03:17,952 INFO L225 Difference]: With dead ends: 701 [2020-10-16 12:03:17,952 INFO L226 Difference]: Without dead ends: 355 [2020-10-16 12:03:17,953 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2020-10-16 12:03:17,954 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 355 states. [2020-10-16 12:03:17,961 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 355 to 355. [2020-10-16 12:03:17,961 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 355 states. [2020-10-16 12:03:17,963 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 355 states to 355 states and 988 transitions. [2020-10-16 12:03:17,963 INFO L78 Accepts]: Start accepts. Automaton has 355 states and 988 transitions. Word has length 22 [2020-10-16 12:03:17,963 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 12:03:17,963 INFO L481 AbstractCegarLoop]: Abstraction has 355 states and 988 transitions. [2020-10-16 12:03:17,964 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-16 12:03:17,964 INFO L276 IsEmpty]: Start isEmpty. Operand 355 states and 988 transitions. [2020-10-16 12:03:17,965 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2020-10-16 12:03:17,965 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 12:03:17,966 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 12:03:17,966 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-16 12:03:17,966 INFO L429 AbstractCegarLoop]: === Iteration 10 === [P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 12:03:17,966 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 12:03:17,966 INFO L82 PathProgramCache]: Analyzing trace with hash -1254154008, now seen corresponding path program 1 times [2020-10-16 12:03:17,967 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 12:03:17,967 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [564277812] [2020-10-16 12:03:17,967 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 12:03:17,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 12:03:18,048 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 12:03:18,049 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [564277812] [2020-10-16 12:03:18,049 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 12:03:18,049 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-16 12:03:18,050 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [30345030] [2020-10-16 12:03:18,051 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-16 12:03:18,051 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 12:03:18,051 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-16 12:03:18,052 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-16 12:03:18,052 INFO L87 Difference]: Start difference. First operand 355 states and 988 transitions. Second operand 4 states. [2020-10-16 12:03:18,080 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 12:03:18,081 INFO L93 Difference]: Finished difference Result 493 states and 1336 transitions. [2020-10-16 12:03:18,082 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-16 12:03:18,082 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 26 [2020-10-16 12:03:18,082 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 12:03:18,084 INFO L225 Difference]: With dead ends: 493 [2020-10-16 12:03:18,084 INFO L226 Difference]: Without dead ends: 219 [2020-10-16 12:03:18,085 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-16 12:03:18,086 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 219 states. [2020-10-16 12:03:18,090 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 219 to 219. [2020-10-16 12:03:18,091 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 219 states. [2020-10-16 12:03:18,093 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 219 states to 219 states and 540 transitions. [2020-10-16 12:03:18,093 INFO L78 Accepts]: Start accepts. Automaton has 219 states and 540 transitions. Word has length 26 [2020-10-16 12:03:18,094 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 12:03:18,094 INFO L481 AbstractCegarLoop]: Abstraction has 219 states and 540 transitions. [2020-10-16 12:03:18,094 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-16 12:03:18,094 INFO L276 IsEmpty]: Start isEmpty. Operand 219 states and 540 transitions. [2020-10-16 12:03:18,095 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2020-10-16 12:03:18,095 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 12:03:18,095 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 12:03:18,095 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-16 12:03:18,096 INFO L429 AbstractCegarLoop]: === Iteration 11 === [P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 12:03:18,096 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 12:03:18,096 INFO L82 PathProgramCache]: Analyzing trace with hash -2053908162, now seen corresponding path program 2 times [2020-10-16 12:03:18,096 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 12:03:18,097 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [386923754] [2020-10-16 12:03:18,097 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 12:03:18,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 12:03:18,368 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 12:03:18,368 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [386923754] [2020-10-16 12:03:18,369 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 12:03:18,369 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-16 12:03:18,369 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1301797268] [2020-10-16 12:03:18,370 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-16 12:03:18,370 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 12:03:18,370 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-16 12:03:18,370 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-16 12:03:18,370 INFO L87 Difference]: Start difference. First operand 219 states and 540 transitions. Second operand 8 states. [2020-10-16 12:03:18,524 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 12:03:18,524 INFO L93 Difference]: Finished difference Result 269 states and 658 transitions. [2020-10-16 12:03:18,525 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-16 12:03:18,525 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 26 [2020-10-16 12:03:18,525 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 12:03:18,526 INFO L225 Difference]: With dead ends: 269 [2020-10-16 12:03:18,526 INFO L226 Difference]: Without dead ends: 171 [2020-10-16 12:03:18,527 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2020-10-16 12:03:18,528 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 171 states. [2020-10-16 12:03:18,532 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 171 to 171. [2020-10-16 12:03:18,532 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 171 states. [2020-10-16 12:03:18,532 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 171 states to 171 states and 392 transitions. [2020-10-16 12:03:18,533 INFO L78 Accepts]: Start accepts. Automaton has 171 states and 392 transitions. Word has length 26 [2020-10-16 12:03:18,533 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 12:03:18,533 INFO L481 AbstractCegarLoop]: Abstraction has 171 states and 392 transitions. [2020-10-16 12:03:18,533 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-16 12:03:18,533 INFO L276 IsEmpty]: Start isEmpty. Operand 171 states and 392 transitions. [2020-10-16 12:03:18,534 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2020-10-16 12:03:18,535 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 12:03:18,535 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 12:03:18,535 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-16 12:03:18,535 INFO L429 AbstractCegarLoop]: === Iteration 12 === [P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 12:03:18,535 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 12:03:18,536 INFO L82 PathProgramCache]: Analyzing trace with hash -1602958780, now seen corresponding path program 3 times [2020-10-16 12:03:18,536 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 12:03:18,536 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1302742631] [2020-10-16 12:03:18,536 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 12:03:18,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-16 12:03:18,613 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-16 12:03:18,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-16 12:03:18,660 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-16 12:03:18,698 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-16 12:03:18,698 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-16 12:03:18,698 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-16 12:03:18,699 WARN L264 etLargeBlockEncoding]: Failed to translate choice composition: Branch encoders not available. [2020-10-16 12:03:18,713 WARN L124 codingBacktranslator]: Skipped backtranslation of ATE [973] [973] L2-->L855: Formula: (let ((.cse9 (= (mod ~z$r_buff1_thd0~0_In-1171366415 256) 0)) (.cse8 (= (mod ~z$w_buff1_used~0_In-1171366415 256) 0)) (.cse6 (= 0 (mod ~z$r_buff0_thd0~0_In-1171366415 256))) (.cse7 (= (mod ~z$w_buff0_used~0_In-1171366415 256) 0))) (let ((.cse3 (or .cse6 .cse7)) (.cse2 (or .cse9 .cse8)) (.cse0 (not .cse9)) (.cse1 (not .cse8)) (.cse4 (not .cse7)) (.cse5 (not .cse6))) (and (or (and (= ~z$w_buff1_used~0_Out-1171366415 0) .cse0 .cse1) (and .cse2 (= ~z$w_buff1_used~0_In-1171366415 ~z$w_buff1_used~0_Out-1171366415))) (not (= ULTIMATE.start_assume_abort_if_not_~cond_Out-1171366415 0)) (= ~z$r_buff1_thd0~0_In-1171366415 ~z$r_buff1_thd0~0_Out-1171366415) (or (and .cse3 (= ~z$w_buff0_used~0_Out-1171366415 ~z$w_buff0_used~0_In-1171366415)) (and .cse4 .cse5 (= ~z$w_buff0_used~0_Out-1171366415 0))) (= ULTIMATE.start_assume_abort_if_not_~cond_Out-1171366415 |ULTIMATE.start_assume_abort_if_not_#in~cond_In-1171366415|) (= ~z$r_buff0_thd0~0_Out-1171366415 ~z$r_buff0_thd0~0_In-1171366415) (or (and .cse3 (or (and (= ~z~0_Out-1171366415 ~z~0_In-1171366415) .cse2) (and .cse0 (= ~z~0_Out-1171366415 ~z$w_buff1~0_In-1171366415) .cse1))) (and .cse4 (= ~z~0_Out-1171366415 ~z$w_buff0~0_In-1171366415) .cse5))))) InVars {ULTIMATE.start_assume_abort_if_not_#in~cond=|ULTIMATE.start_assume_abort_if_not_#in~cond_In-1171366415|, ~z$r_buff0_thd0~0=~z$r_buff0_thd0~0_In-1171366415, ~z$w_buff0_used~0=~z$w_buff0_used~0_In-1171366415, ~z$w_buff0~0=~z$w_buff0~0_In-1171366415, ~z$r_buff1_thd0~0=~z$r_buff1_thd0~0_In-1171366415, ~z$w_buff1_used~0=~z$w_buff1_used~0_In-1171366415, ~z$w_buff1~0=~z$w_buff1~0_In-1171366415, ~z~0=~z~0_In-1171366415} OutVars{~z$w_buff0_used~0=~z$w_buff0_used~0_Out-1171366415, ULTIMATE.start_main_#t~ite18=|ULTIMATE.start_main_#t~ite18_Out-1171366415|, ~z$w_buff0~0=~z$w_buff0~0_In-1171366415, ULTIMATE.start_main_#t~ite19=|ULTIMATE.start_main_#t~ite19_Out-1171366415|, ~z$w_buff1_used~0=~z$w_buff1_used~0_Out-1171366415, ~z$w_buff1~0=~z$w_buff1~0_In-1171366415, ULTIMATE.start_main_#t~ite20=|ULTIMATE.start_main_#t~ite20_Out-1171366415|, ULTIMATE.start_main_#t~ite21=|ULTIMATE.start_main_#t~ite21_Out-1171366415|, ULTIMATE.start_main_#t~ite22=|ULTIMATE.start_main_#t~ite22_Out-1171366415|, ULTIMATE.start_main_#t~ite23=|ULTIMATE.start_main_#t~ite23_Out-1171366415|, ULTIMATE.start_assume_abort_if_not_#in~cond=|ULTIMATE.start_assume_abort_if_not_#in~cond_In-1171366415|, ~z$r_buff0_thd0~0=~z$r_buff0_thd0~0_Out-1171366415, ULTIMATE.start_assume_abort_if_not_~cond=ULTIMATE.start_assume_abort_if_not_~cond_Out-1171366415, ~z$r_buff1_thd0~0=~z$r_buff1_thd0~0_Out-1171366415, ~z~0=~z~0_Out-1171366415} AuxVars[] AssignedVars[~z$r_buff0_thd0~0, ULTIMATE.start_assume_abort_if_not_~cond, ~z$w_buff0_used~0, ULTIMATE.start_main_#t~ite18, ULTIMATE.start_main_#t~ite19, ~z$r_buff1_thd0~0, ~z$w_buff1_used~0, ~z~0, ULTIMATE.start_main_#t~ite20, ULTIMATE.start_main_#t~ite21, ULTIMATE.start_main_#t~ite22, ULTIMATE.start_main_#t~ite23] because there is no mapped edge [2020-10-16 12:03:18,720 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 12:03:18,721 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-16 12:03:18,723 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 12:03:18,723 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-16 12:03:18,724 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 12:03:18,724 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-16 12:03:18,724 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 12:03:18,724 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-16 12:03:18,724 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 12:03:18,724 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-16 12:03:18,725 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 12:03:18,725 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-16 12:03:18,725 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 12:03:18,725 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-16 12:03:18,726 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 12:03:18,726 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-16 12:03:18,726 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 12:03:18,726 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-16 12:03:18,726 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 12:03:18,727 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-16 12:03:18,727 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 12:03:18,727 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-16 12:03:18,727 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 12:03:18,727 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-16 12:03:18,728 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 12:03:18,728 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-16 12:03:18,728 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 12:03:18,729 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-16 12:03:18,729 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 12:03:18,729 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-16 12:03:18,729 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 12:03:18,729 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-16 12:03:18,729 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 12:03:18,730 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-16 12:03:18,730 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 12:03:18,730 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-16 12:03:18,730 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 12:03:18,730 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-16 12:03:18,731 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 12:03:18,731 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-16 12:03:18,731 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 12:03:18,731 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-16 12:03:18,731 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 12:03:18,731 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-16 12:03:18,732 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 12:03:18,732 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-16 12:03:18,732 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 12:03:18,732 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-16 12:03:18,732 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 12:03:18,732 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-16 12:03:18,733 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 12:03:18,733 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-16 12:03:18,828 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.10 12:03:18 BasicIcfg [2020-10-16 12:03:18,829 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-16 12:03:18,833 INFO L168 Benchmark]: Toolchain (without parser) took 17002.85 ms. Allocated memory was 140.5 MB in the beginning and 384.3 MB in the end (delta: 243.8 MB). Free memory was 101.3 MB in the beginning and 290.4 MB in the end (delta: -189.1 MB). Peak memory consumption was 54.7 MB. Max. memory is 7.1 GB. [2020-10-16 12:03:18,836 INFO L168 Benchmark]: CDTParser took 0.42 ms. Allocated memory is still 140.5 MB. Free memory was 120.8 MB in the beginning and 120.6 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. [2020-10-16 12:03:18,837 INFO L168 Benchmark]: CACSL2BoogieTranslator took 773.22 ms. Allocated memory was 140.5 MB in the beginning and 203.4 MB in the end (delta: 62.9 MB). Free memory was 101.1 MB in the beginning and 156.3 MB in the end (delta: -55.2 MB). Peak memory consumption was 23.8 MB. Max. memory is 7.1 GB. [2020-10-16 12:03:18,840 INFO L168 Benchmark]: Boogie Procedure Inliner took 65.51 ms. Allocated memory is still 203.4 MB. Free memory was 156.3 MB in the beginning and 153.7 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.6 MB. Max. memory is 7.1 GB. [2020-10-16 12:03:18,841 INFO L168 Benchmark]: Boogie Preprocessor took 38.54 ms. Allocated memory is still 203.4 MB. Free memory was 153.7 MB in the beginning and 151.0 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.6 MB. Max. memory is 7.1 GB. [2020-10-16 12:03:18,841 INFO L168 Benchmark]: RCFGBuilder took 2172.84 ms. Allocated memory was 203.4 MB in the beginning and 246.4 MB in the end (delta: 43.0 MB). Free memory was 151.0 MB in the beginning and 179.7 MB in the end (delta: -28.7 MB). Peak memory consumption was 100.9 MB. Max. memory is 7.1 GB. [2020-10-16 12:03:18,842 INFO L168 Benchmark]: TraceAbstraction took 13947.15 ms. Allocated memory was 246.4 MB in the beginning and 384.3 MB in the end (delta: 137.9 MB). Free memory was 179.7 MB in the beginning and 290.4 MB in the end (delta: -110.7 MB). Peak memory consumption was 27.2 MB. Max. memory is 7.1 GB. [2020-10-16 12:03:18,852 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.42 ms. Allocated memory is still 140.5 MB. Free memory was 120.8 MB in the beginning and 120.6 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 773.22 ms. Allocated memory was 140.5 MB in the beginning and 203.4 MB in the end (delta: 62.9 MB). Free memory was 101.1 MB in the beginning and 156.3 MB in the end (delta: -55.2 MB). Peak memory consumption was 23.8 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 65.51 ms. Allocated memory is still 203.4 MB. Free memory was 156.3 MB in the beginning and 153.7 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.6 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 38.54 ms. Allocated memory is still 203.4 MB. Free memory was 153.7 MB in the beginning and 151.0 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.6 MB. Max. memory is 7.1 GB. * RCFGBuilder took 2172.84 ms. Allocated memory was 203.4 MB in the beginning and 246.4 MB in the end (delta: 43.0 MB). Free memory was 151.0 MB in the beginning and 179.7 MB in the end (delta: -28.7 MB). Peak memory consumption was 100.9 MB. Max. memory is 7.1 GB. * TraceAbstraction took 13947.15 ms. Allocated memory was 246.4 MB in the beginning and 384.3 MB in the end (delta: 137.9 MB). Free memory was 179.7 MB in the beginning and 290.4 MB in the end (delta: -110.7 MB). Peak memory consumption was 27.2 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 1359 VarBasedMoverChecksPositive, 48 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 0 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 138 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 9.9s, 124 PlacesBefore, 45 PlacesAfterwards, 113 TransitionsBefore, 32 TransitionsAfterwards, 2540 CoEnabledTransitionPairs, 6 FixpointIterations, 38 TrivialSequentialCompositions, 49 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 2 ConcurrentYvCompositions, 2 ChoiceCompositions, 91 TotalNumberOfCompositions, 6282 MoverChecksTotal - CounterExampleResult [Line: 7]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L699] 0 int __unbuffered_cnt = 0; [L701] 0 int __unbuffered_p0_EAX = 0; [L703] 0 int __unbuffered_p1_EAX = 0; [L705] 0 int __unbuffered_p3_EAX = 0; [L707] 0 int __unbuffered_p3_EBX = 0; [L709] 0 int a = 0; [L711] 0 int b = 0; [L712] 0 _Bool main$tmp_guard0; [L713] 0 _Bool main$tmp_guard1; [L715] 0 int x = 0; [L717] 0 int y = 0; [L719] 0 int z = 0; [L720] 0 _Bool z$flush_delayed; [L721] 0 int z$mem_tmp; [L722] 0 _Bool z$r_buff0_thd0; [L723] 0 _Bool z$r_buff0_thd1; [L724] 0 _Bool z$r_buff0_thd2; [L725] 0 _Bool z$r_buff0_thd3; [L726] 0 _Bool z$r_buff0_thd4; [L727] 0 _Bool z$r_buff1_thd0; [L728] 0 _Bool z$r_buff1_thd1; [L729] 0 _Bool z$r_buff1_thd2; [L730] 0 _Bool z$r_buff1_thd3; [L731] 0 _Bool z$r_buff1_thd4; [L732] 0 _Bool z$read_delayed; [L733] 0 int *z$read_delayed_var; [L734] 0 int z$w_buff0; [L735] 0 _Bool z$w_buff0_used; [L736] 0 int z$w_buff1; [L737] 0 _Bool z$w_buff1_used; [L738] 0 _Bool weak$$choice0; [L739] 0 _Bool weak$$choice2; [L837] 0 pthread_t t1141; [L838] FCALL, FORK 0 pthread_create(&t1141, ((void *)0), P0, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p3_EAX=0, __unbuffered_p3_EBX=0, a=0, arg={0:0}, b=0, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=0, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0] [L839] 0 pthread_t t1142; [L840] FCALL, FORK 0 pthread_create(&t1142, ((void *)0), P1, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p3_EAX=0, __unbuffered_p3_EBX=0, a=0, arg={0:0}, arg={0:0}, b=0, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=0, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0] [L841] 0 pthread_t t1143; [L842] FCALL, FORK 0 pthread_create(&t1143, ((void *)0), P2, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p3_EAX=0, __unbuffered_p3_EBX=0, a=0, arg={0:0}, arg={0:0}, arg={0:0}, b=0, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=0, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0] [L843] 0 pthread_t t1144; [L844] FCALL, FORK 0 pthread_create(&t1144, ((void *)0), P3, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p3_EAX=0, __unbuffered_p3_EBX=0, a=0, arg={0:0}, arg={0:0}, arg={0:0}, b=0, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=0, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0] [L793] 4 z$w_buff1 = z$w_buff0 [L794] 4 z$w_buff0 = 2 [L795] 4 z$w_buff1_used = z$w_buff0_used [L796] 4 z$w_buff0_used = (_Bool)1 [L7] COND FALSE 4 !(!expression) [L798] 4 z$r_buff1_thd0 = z$r_buff0_thd0 [L799] 4 z$r_buff1_thd1 = z$r_buff0_thd1 [L800] 4 z$r_buff1_thd2 = z$r_buff0_thd2 [L801] 4 z$r_buff1_thd3 = z$r_buff0_thd3 [L802] 4 z$r_buff1_thd4 = z$r_buff0_thd4 [L803] 4 z$r_buff0_thd4 = (_Bool)1 [L806] 4 a = 1 VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p3_EAX=0, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, b=0, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=2, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0] [L809] 4 __unbuffered_p3_EAX = a VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p3_EAX=1, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, b=0, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=2, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0] [L812] 4 __unbuffered_p3_EBX = b VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p3_EAX=1, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, b=0, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=2, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0] [L743] 1 b = 1 VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p3_EAX=1, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, b=1, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=2, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0] [L746] 1 __unbuffered_p0_EAX = x VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p3_EAX=1, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, b=1, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=2, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0] [L751] 1 __unbuffered_cnt = __unbuffered_cnt + 1 [L753] 1 return 0; [L758] 2 x = 1 VAL [\result={0:0}, __unbuffered_cnt=1, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p3_EAX=1, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, b=1, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=1, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=2, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0] [L761] 2 __unbuffered_p1_EAX = y VAL [\result={0:0}, __unbuffered_cnt=1, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p3_EAX=1, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, b=1, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=1, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=2, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0] [L766] 2 __unbuffered_cnt = __unbuffered_cnt + 1 [L768] 2 return 0; [L773] 3 y = 1 VAL [\result={0:0}, \result={0:0}, __unbuffered_cnt=2, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p3_EAX=1, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, b=1, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=1, y=1, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=2, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0] [L776] 3 z = 1 VAL [\result={0:0}, \result={0:0}, __unbuffered_cnt=2, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p3_EAX=1, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, b=1, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=1, y=1, z=1, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=2, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0] [L779] EXPR 3 z$w_buff0_used && z$r_buff0_thd3 ? z$w_buff0 : (z$w_buff1_used && z$r_buff1_thd3 ? z$w_buff1 : z) [L779] EXPR 3 z$w_buff1_used && z$r_buff1_thd3 ? z$w_buff1 : z [L779] EXPR 3 z$w_buff0_used && z$r_buff0_thd3 ? z$w_buff0 : (z$w_buff1_used && z$r_buff1_thd3 ? z$w_buff1 : z) [L779] 3 z = z$w_buff0_used && z$r_buff0_thd3 ? z$w_buff0 : (z$w_buff1_used && z$r_buff1_thd3 ? z$w_buff1 : z) [L780] EXPR 3 z$w_buff0_used && z$r_buff0_thd3 ? (_Bool)0 : z$w_buff0_used [L780] 3 z$w_buff0_used = z$w_buff0_used && z$r_buff0_thd3 ? (_Bool)0 : z$w_buff0_used [L781] EXPR 3 z$w_buff0_used && z$r_buff0_thd3 || z$w_buff1_used && z$r_buff1_thd3 ? (_Bool)0 : z$w_buff1_used [L781] 3 z$w_buff1_used = z$w_buff0_used && z$r_buff0_thd3 || z$w_buff1_used && z$r_buff1_thd3 ? (_Bool)0 : z$w_buff1_used [L782] EXPR 3 z$w_buff0_used && z$r_buff0_thd3 ? (_Bool)0 : z$r_buff0_thd3 [L782] 3 z$r_buff0_thd3 = z$w_buff0_used && z$r_buff0_thd3 ? (_Bool)0 : z$r_buff0_thd3 [L783] EXPR 3 z$w_buff0_used && z$r_buff0_thd3 || z$w_buff1_used && z$r_buff1_thd3 ? (_Bool)0 : z$r_buff1_thd3 [L783] 3 z$r_buff1_thd3 = z$w_buff0_used && z$r_buff0_thd3 || z$w_buff1_used && z$r_buff1_thd3 ? (_Bool)0 : z$r_buff1_thd3 [L786] 3 __unbuffered_cnt = __unbuffered_cnt + 1 [L788] 3 return 0; [L815] EXPR 4 z$w_buff0_used && z$r_buff0_thd4 ? z$w_buff0 : (z$w_buff1_used && z$r_buff1_thd4 ? z$w_buff1 : z) [L815] EXPR 4 z$w_buff1_used && z$r_buff1_thd4 ? z$w_buff1 : z [L815] EXPR 4 z$w_buff0_used && z$r_buff0_thd4 ? z$w_buff0 : (z$w_buff1_used && z$r_buff1_thd4 ? z$w_buff1 : z) [L815] 4 z = z$w_buff0_used && z$r_buff0_thd4 ? z$w_buff0 : (z$w_buff1_used && z$r_buff1_thd4 ? z$w_buff1 : z) [L816] EXPR 4 z$w_buff0_used && z$r_buff0_thd4 ? (_Bool)0 : z$w_buff0_used [L816] 4 z$w_buff0_used = z$w_buff0_used && z$r_buff0_thd4 ? (_Bool)0 : z$w_buff0_used [L817] EXPR 4 z$w_buff0_used && z$r_buff0_thd4 || z$w_buff1_used && z$r_buff1_thd4 ? (_Bool)0 : z$w_buff1_used [L817] 4 z$w_buff1_used = z$w_buff0_used && z$r_buff0_thd4 || z$w_buff1_used && z$r_buff1_thd4 ? (_Bool)0 : z$w_buff1_used [L818] EXPR 4 z$w_buff0_used && z$r_buff0_thd4 ? (_Bool)0 : z$r_buff0_thd4 [L818] 4 z$r_buff0_thd4 = z$w_buff0_used && z$r_buff0_thd4 ? (_Bool)0 : z$r_buff0_thd4 [L819] EXPR 4 z$w_buff0_used && z$r_buff0_thd4 || z$w_buff1_used && z$r_buff1_thd4 ? (_Bool)0 : z$r_buff1_thd4 [L819] 4 z$r_buff1_thd4 = z$w_buff0_used && z$r_buff0_thd4 || z$w_buff1_used && z$r_buff1_thd4 ? (_Bool)0 : z$r_buff1_thd4 [L822] 4 __unbuffered_cnt = __unbuffered_cnt + 1 [L824] 4 return 0; [L846] 0 main$tmp_guard0 = __unbuffered_cnt == 4 [L857] 0 weak$$choice0 = __VERIFIER_nondet_bool() [L858] 0 weak$$choice2 = __VERIFIER_nondet_bool() [L859] 0 z$flush_delayed = weak$$choice2 [L860] 0 z$mem_tmp = z [L861] EXPR 0 !z$w_buff0_used || !z$r_buff0_thd0 && !z$w_buff1_used || !z$r_buff0_thd0 && !z$r_buff1_thd0 ? z : (z$w_buff0_used && z$r_buff0_thd0 ? z$w_buff0 : z$w_buff1) [L861] EXPR 0 z$w_buff0_used && z$r_buff0_thd0 ? z$w_buff0 : z$w_buff1 [L861] EXPR 0 !z$w_buff0_used || !z$r_buff0_thd0 && !z$w_buff1_used || !z$r_buff0_thd0 && !z$r_buff1_thd0 ? z : (z$w_buff0_used && z$r_buff0_thd0 ? z$w_buff0 : z$w_buff1) [L861] 0 z = !z$w_buff0_used || !z$r_buff0_thd0 && !z$w_buff1_used || !z$r_buff0_thd0 && !z$r_buff1_thd0 ? z : (z$w_buff0_used && z$r_buff0_thd0 ? z$w_buff0 : z$w_buff1) [L862] EXPR 0 weak$$choice2 ? z$w_buff0 : (!z$w_buff0_used || !z$r_buff0_thd0 && !z$w_buff1_used || !z$r_buff0_thd0 && !z$r_buff1_thd0 ? z$w_buff0 : (z$w_buff0_used && z$r_buff0_thd0 ? z$w_buff0 : z$w_buff0)) [L862] 0 z$w_buff0 = weak$$choice2 ? z$w_buff0 : (!z$w_buff0_used || !z$r_buff0_thd0 && !z$w_buff1_used || !z$r_buff0_thd0 && !z$r_buff1_thd0 ? z$w_buff0 : (z$w_buff0_used && z$r_buff0_thd0 ? z$w_buff0 : z$w_buff0)) [L863] EXPR 0 weak$$choice2 ? z$w_buff1 : (!z$w_buff0_used || !z$r_buff0_thd0 && !z$w_buff1_used || !z$r_buff0_thd0 && !z$r_buff1_thd0 ? z$w_buff1 : (z$w_buff0_used && z$r_buff0_thd0 ? z$w_buff1 : z$w_buff1)) [L863] EXPR 0 !z$w_buff0_used || !z$r_buff0_thd0 && !z$w_buff1_used || !z$r_buff0_thd0 && !z$r_buff1_thd0 ? z$w_buff1 : (z$w_buff0_used && z$r_buff0_thd0 ? z$w_buff1 : z$w_buff1) [L863] EXPR 0 z$w_buff0_used && z$r_buff0_thd0 ? z$w_buff1 : z$w_buff1 [L863] EXPR 0 !z$w_buff0_used || !z$r_buff0_thd0 && !z$w_buff1_used || !z$r_buff0_thd0 && !z$r_buff1_thd0 ? z$w_buff1 : (z$w_buff0_used && z$r_buff0_thd0 ? z$w_buff1 : z$w_buff1) [L863] EXPR 0 weak$$choice2 ? z$w_buff1 : (!z$w_buff0_used || !z$r_buff0_thd0 && !z$w_buff1_used || !z$r_buff0_thd0 && !z$r_buff1_thd0 ? z$w_buff1 : (z$w_buff0_used && z$r_buff0_thd0 ? z$w_buff1 : z$w_buff1)) [L863] 0 z$w_buff1 = weak$$choice2 ? z$w_buff1 : (!z$w_buff0_used || !z$r_buff0_thd0 && !z$w_buff1_used || !z$r_buff0_thd0 && !z$r_buff1_thd0 ? z$w_buff1 : (z$w_buff0_used && z$r_buff0_thd0 ? z$w_buff1 : z$w_buff1)) [L864] EXPR 0 weak$$choice2 ? z$w_buff0_used : (!z$w_buff0_used || !z$r_buff0_thd0 && !z$w_buff1_used || !z$r_buff0_thd0 && !z$r_buff1_thd0 ? z$w_buff0_used : (z$w_buff0_used && z$r_buff0_thd0 ? (_Bool)0 : z$w_buff0_used)) [L864] EXPR 0 !z$w_buff0_used || !z$r_buff0_thd0 && !z$w_buff1_used || !z$r_buff0_thd0 && !z$r_buff1_thd0 ? z$w_buff0_used : (z$w_buff0_used && z$r_buff0_thd0 ? (_Bool)0 : z$w_buff0_used) [L864] EXPR 0 weak$$choice2 ? z$w_buff0_used : (!z$w_buff0_used || !z$r_buff0_thd0 && !z$w_buff1_used || !z$r_buff0_thd0 && !z$r_buff1_thd0 ? z$w_buff0_used : (z$w_buff0_used && z$r_buff0_thd0 ? (_Bool)0 : z$w_buff0_used)) [L864] 0 z$w_buff0_used = weak$$choice2 ? z$w_buff0_used : (!z$w_buff0_used || !z$r_buff0_thd0 && !z$w_buff1_used || !z$r_buff0_thd0 && !z$r_buff1_thd0 ? z$w_buff0_used : (z$w_buff0_used && z$r_buff0_thd0 ? (_Bool)0 : z$w_buff0_used)) [L865] EXPR 0 weak$$choice2 ? z$w_buff1_used : (!z$w_buff0_used || !z$r_buff0_thd0 && !z$w_buff1_used || !z$r_buff0_thd0 && !z$r_buff1_thd0 ? z$w_buff1_used : (z$w_buff0_used && z$r_buff0_thd0 ? (_Bool)0 : (_Bool)0)) [L865] EXPR 0 !z$w_buff0_used || !z$r_buff0_thd0 && !z$w_buff1_used || !z$r_buff0_thd0 && !z$r_buff1_thd0 ? z$w_buff1_used : (z$w_buff0_used && z$r_buff0_thd0 ? (_Bool)0 : (_Bool)0) [L865] EXPR 0 weak$$choice2 ? z$w_buff1_used : (!z$w_buff0_used || !z$r_buff0_thd0 && !z$w_buff1_used || !z$r_buff0_thd0 && !z$r_buff1_thd0 ? z$w_buff1_used : (z$w_buff0_used && z$r_buff0_thd0 ? (_Bool)0 : (_Bool)0)) [L865] 0 z$w_buff1_used = weak$$choice2 ? z$w_buff1_used : (!z$w_buff0_used || !z$r_buff0_thd0 && !z$w_buff1_used || !z$r_buff0_thd0 && !z$r_buff1_thd0 ? z$w_buff1_used : (z$w_buff0_used && z$r_buff0_thd0 ? (_Bool)0 : (_Bool)0)) [L866] EXPR 0 weak$$choice2 ? z$r_buff0_thd0 : (!z$w_buff0_used || !z$r_buff0_thd0 && !z$w_buff1_used || !z$r_buff0_thd0 && !z$r_buff1_thd0 ? z$r_buff0_thd0 : (z$w_buff0_used && z$r_buff0_thd0 ? (_Bool)0 : z$r_buff0_thd0)) [L866] 0 z$r_buff0_thd0 = weak$$choice2 ? z$r_buff0_thd0 : (!z$w_buff0_used || !z$r_buff0_thd0 && !z$w_buff1_used || !z$r_buff0_thd0 && !z$r_buff1_thd0 ? z$r_buff0_thd0 : (z$w_buff0_used && z$r_buff0_thd0 ? (_Bool)0 : z$r_buff0_thd0)) [L867] EXPR 0 weak$$choice2 ? z$r_buff1_thd0 : (!z$w_buff0_used || !z$r_buff0_thd0 && !z$w_buff1_used || !z$r_buff0_thd0 && !z$r_buff1_thd0 ? z$r_buff1_thd0 : (z$w_buff0_used && z$r_buff0_thd0 ? (_Bool)0 : (_Bool)0)) [L867] 0 z$r_buff1_thd0 = weak$$choice2 ? z$r_buff1_thd0 : (!z$w_buff0_used || !z$r_buff0_thd0 && !z$w_buff1_used || !z$r_buff0_thd0 && !z$r_buff1_thd0 ? z$r_buff1_thd0 : (z$w_buff0_used && z$r_buff0_thd0 ? (_Bool)0 : (_Bool)0)) [L868] 0 main$tmp_guard1 = !(z == 2 && __unbuffered_p0_EAX == 0 && __unbuffered_p1_EAX == 0 && __unbuffered_p3_EAX == 1 && __unbuffered_p3_EBX == 0) [L869] EXPR 0 z$flush_delayed ? z$mem_tmp : z [L869] 0 z = z$flush_delayed ? z$mem_tmp : z [L870] 0 z$flush_delayed = (_Bool)0 [L7] COND TRUE 0 !expression [L7] 0 __VERIFIER_error() VAL [\result={0:0}, \result={0:0}, \result={0:0}, __unbuffered_cnt=4, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p3_EAX=1, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, b=1, main$tmp_guard0=1, main$tmp_guard1=0, weak$$choice0=9, weak$$choice2=0, x=1, y=1, z=2, z$flush_delayed=0, z$mem_tmp=2, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=2, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 112 locations, 2 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 13.6s, OverallIterations: 12, TraceHistogramMax: 1, AutomataDifference: 1.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 10.1s, HoareTripleCheckerStatistics: 361 SDtfs, 450 SDslu, 654 SDs, 0 SdLazy, 254 SolverSat, 65 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 49 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=3002occurred 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: 0.5s AutomataMinimizationTime, 11 MinimizatonAttempts, 24 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 0.8s InterpolantComputationTime, 214 NumberOfCodeBlocks, 214 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 177 ConstructedInterpolants, 0 QuantifiedInterpolants, 19468 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 11 InterpolantComputations, 11 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...