/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/mix036_tso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-b09bf87 [2020-10-16 12:02:06,027 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-16 12:02:06,030 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-16 12:02:06,055 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-16 12:02:06,056 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-16 12:02:06,057 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-16 12:02:06,058 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-16 12:02:06,060 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-16 12:02:06,062 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-16 12:02:06,063 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-16 12:02:06,064 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-16 12:02:06,065 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-16 12:02:06,066 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-16 12:02:06,067 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-16 12:02:06,068 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-16 12:02:06,069 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-16 12:02:06,070 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-16 12:02:06,071 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-16 12:02:06,073 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-16 12:02:06,075 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-16 12:02:06,077 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-16 12:02:06,078 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-16 12:02:06,079 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-16 12:02:06,080 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-16 12:02:06,083 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-16 12:02:06,083 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-16 12:02:06,083 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-16 12:02:06,084 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-16 12:02:06,085 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-16 12:02:06,089 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-16 12:02:06,089 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-16 12:02:06,089 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-16 12:02:06,090 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-16 12:02:06,091 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-16 12:02:06,092 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-16 12:02:06,092 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-16 12:02:06,093 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-16 12:02:06,093 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-16 12:02:06,093 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-16 12:02:06,094 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-16 12:02:06,095 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-16 12:02:06,096 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 12:02:06,119 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-16 12:02:06,119 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-16 12:02:06,120 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-16 12:02:06,121 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-16 12:02:06,121 INFO L138 SettingsManager]: * Use SBE=true [2020-10-16 12:02:06,121 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-16 12:02:06,121 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-16 12:02:06,122 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-16 12:02:06,122 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-16 12:02:06,122 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-16 12:02:06,122 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-16 12:02:06,122 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-16 12:02:06,123 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-16 12:02:06,123 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-16 12:02:06,123 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-16 12:02:06,123 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-16 12:02:06,123 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-16 12:02:06,123 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-16 12:02:06,124 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-16 12:02:06,124 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-16 12:02:06,124 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-16 12:02:06,124 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-16 12:02:06,124 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-16 12:02:06,125 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_NestedInterpolation [2020-10-16 12:02:06,125 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-16 12:02:06,125 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-16 12:02:06,125 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-16 12:02:06,125 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=VARIABLE_BASED_MOVER_CHECK [2020-10-16 12:02:06,126 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-16 12:02:06,434 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-16 12:02:06,456 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-16 12:02:06,461 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-16 12:02:06,462 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-16 12:02:06,463 INFO L275 PluginConnector]: CDTParser initialized [2020-10-16 12:02:06,464 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/mix036_tso.opt.i [2020-10-16 12:02:06,544 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/19af3d827/fc9870631b2a4a7093a7a4632f11e0eb/FLAG33cff601b [2020-10-16 12:02:07,132 INFO L306 CDTParser]: Found 1 translation units. [2020-10-16 12:02:07,133 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/pthread-wmm/mix036_tso.opt.i [2020-10-16 12:02:07,150 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/19af3d827/fc9870631b2a4a7093a7a4632f11e0eb/FLAG33cff601b [2020-10-16 12:02:07,422 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/19af3d827/fc9870631b2a4a7093a7a4632f11e0eb [2020-10-16 12:02:07,432 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-16 12:02:07,435 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-10-16 12:02:07,436 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-16 12:02:07,437 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-16 12:02:07,441 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-16 12:02:07,442 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 12:02:07" (1/1) ... [2020-10-16 12:02:07,446 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@59d0a8f9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:02:07, skipping insertion in model container [2020-10-16 12:02:07,447 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 12:02:07" (1/1) ... [2020-10-16 12:02:07,456 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-16 12:02:07,502 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-16 12:02:08,064 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-16 12:02:08,088 INFO L203 MainTranslator]: Completed pre-run [2020-10-16 12:02:08,204 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-16 12:02:08,293 INFO L208 MainTranslator]: Completed translation [2020-10-16 12:02:08,293 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:02:08 WrapperNode [2020-10-16 12:02:08,293 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-16 12:02:08,294 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-16 12:02:08,294 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-16 12:02:08,295 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-16 12:02:08,304 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:02:08" (1/1) ... [2020-10-16 12:02:08,325 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:02:08" (1/1) ... [2020-10-16 12:02:08,360 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-16 12:02:08,360 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-16 12:02:08,360 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-16 12:02:08,361 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-16 12:02:08,369 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:02:08" (1/1) ... [2020-10-16 12:02:08,370 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:02:08" (1/1) ... [2020-10-16 12:02:08,374 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:02:08" (1/1) ... [2020-10-16 12:02:08,374 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:02:08" (1/1) ... [2020-10-16 12:02:08,385 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:02:08" (1/1) ... [2020-10-16 12:02:08,390 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:02:08" (1/1) ... [2020-10-16 12:02:08,393 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:02:08" (1/1) ... [2020-10-16 12:02:08,398 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-16 12:02:08,399 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-16 12:02:08,399 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-16 12:02:08,399 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-16 12:02:08,400 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:02:08" (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 12:02:08,474 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-16 12:02:08,474 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-10-16 12:02:08,475 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-16 12:02:08,475 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-16 12:02:08,475 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-10-16 12:02:08,476 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-10-16 12:02:08,476 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-10-16 12:02:08,476 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-10-16 12:02:08,476 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-10-16 12:02:08,476 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-10-16 12:02:08,477 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2020-10-16 12:02:08,477 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2020-10-16 12:02:08,477 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-10-16 12:02:08,477 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-16 12:02:08,477 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-16 12:02:08,480 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 12:02:10,256 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-16 12:02:10,256 INFO L298 CfgBuilder]: Removed 10 assume(true) statements. [2020-10-16 12:02:10,259 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 12:02:10 BoogieIcfgContainer [2020-10-16 12:02:10,259 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-16 12:02:10,261 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-16 12:02:10,261 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-16 12:02:10,264 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-16 12:02:10,265 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.10 12:02:07" (1/3) ... [2020-10-16 12:02:10,266 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@48c8ac1f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 12:02:10, skipping insertion in model container [2020-10-16 12:02:10,266 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:02:08" (2/3) ... [2020-10-16 12:02:10,266 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@48c8ac1f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 12:02:10, skipping insertion in model container [2020-10-16 12:02:10,267 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 12:02:10" (3/3) ... [2020-10-16 12:02:10,269 INFO L111 eAbstractionObserver]: Analyzing ICFG mix036_tso.opt.i [2020-10-16 12:02:10,281 WARN L153 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-10-16 12:02:10,281 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-16 12:02:10,289 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2020-10-16 12:02:10,291 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-10-16 12:02:10,352 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:02:10,353 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:02:10,353 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:02:10,353 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:02:10,354 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:02:10,354 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:02:10,354 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:02:10,354 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:02:10,354 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:02:10,355 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:02:10,355 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:02:10,355 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:02:10,355 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:02:10,356 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:02:10,356 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:02:10,356 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:02:10,356 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:02:10,356 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:02:10,357 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:02:10,357 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:02:10,357 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:02:10,357 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:02:10,357 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:02:10,357 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:02:10,358 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:02:10,358 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:02:10,358 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:02:10,358 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:02:10,358 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:02:10,358 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:02:10,359 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:02:10,359 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:02:10,359 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:02:10,359 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:02:10,359 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:02:10,359 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:02:10,360 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:02:10,360 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:02:10,360 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:02:10,360 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:02:10,360 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:02:10,360 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:02:10,361 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:02:10,361 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:02:10,361 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:02:10,361 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:02:10,361 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:02:10,361 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:02:10,362 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:02:10,362 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite24| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:02:10,362 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite23| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:02:10,362 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:02:10,362 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:02:10,362 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:02:10,364 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:02:10,364 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:02:10,365 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:02:10,365 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:02:10,365 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:02:10,366 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:02:10,366 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork3___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:02:10,366 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:02:10,366 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork3___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:02:10,367 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:02:10,367 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#t~ite25| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:02:10,367 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#t~ite29| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:02:10,367 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#t~ite28| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:02:10,367 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#t~ite25| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:02:10,368 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#t~ite27| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:02:10,368 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#t~ite26| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:02:10,368 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#t~ite30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:02:10,369 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:02:10,369 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:02:10,373 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:02:10,373 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:02:10,373 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:02:10,373 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:02:10,376 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:02:10,376 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:02:10,376 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:02:10,376 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:02:10,378 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:02:10,378 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:02:10,378 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:02:10,378 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:02:10,379 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:02:10,379 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite23| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:02:10,379 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite24| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:02:10,379 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:02:10,379 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:02:10,380 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:02:10,380 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:02:10,380 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:02:10,380 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:02:10,380 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:02:10,381 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:02:10,381 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:02:10,381 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:02:10,381 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:02:10,381 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:02:10,382 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:02:10,382 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:02:10,382 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:02:10,382 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:02:10,382 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:02:10,383 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:02:10,383 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:02:10,383 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:02:10,385 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork3___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:02:10,385 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#t~ite29| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:02:10,386 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#t~ite28| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:02:10,386 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:02:10,386 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#t~ite27| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:02:10,386 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#t~ite26| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:02:10,386 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:02:10,386 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#t~ite25| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:02:10,387 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:02:10,387 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:02:10,387 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:02:10,387 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#t~ite30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:02:10,389 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2020-10-16 12:02:10,403 INFO L253 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2020-10-16 12:02:10,425 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-16 12:02:10,425 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-16 12:02:10,426 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-16 12:02:10,426 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-16 12:02:10,426 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-16 12:02:10,426 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-16 12:02:10,426 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-16 12:02:10,426 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-16 12:02:10,441 INFO L137 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2020-10-16 12:02:10,441 INFO L144 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 124 places, 113 transitions, 246 flow [2020-10-16 12:02:10,444 INFO L111 LiptonReduction]: Starting Lipton reduction on Petri net that has 124 places, 113 transitions, 246 flow [2020-10-16 12:02:10,446 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 124 places, 113 transitions, 246 flow [2020-10-16 12:02:10,497 INFO L129 PetriNetUnfolder]: 2/109 cut-off events. [2020-10-16 12:02:10,497 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-10-16 12:02:10,503 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 79 event pairs, 0 based on Foata normal form. 0/105 useless extension candidates. Maximal degree in co-relation 74. Up to 2 conditions per place. [2020-10-16 12:02:10,507 INFO L117 LiptonReduction]: Number of co-enabled transitions 2432 [2020-10-16 12:02:10,793 WARN L193 SmtUtils]: Spent 250.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 58 [2020-10-16 12:02:10,920 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 53 [2020-10-16 12:02:11,106 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 40 [2020-10-16 12:02:11,774 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 55 [2020-10-16 12:02:13,497 WARN L193 SmtUtils]: Spent 335.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 101 [2020-10-16 12:02:13,718 WARN L193 SmtUtils]: Spent 218.00 ms on a formula simplification that was a NOOP. DAG size: 99 [2020-10-16 12:02:13,727 INFO L132 LiptonReduction]: Checked pairs total: 6367 [2020-10-16 12:02:13,727 INFO L134 LiptonReduction]: Total number of compositions: 94 [2020-10-16 12:02:13,735 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 44 places, 32 transitions, 84 flow [2020-10-16 12:02:13,907 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 2410 states. [2020-10-16 12:02:13,910 INFO L276 IsEmpty]: Start isEmpty. Operand 2410 states. [2020-10-16 12:02:13,919 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-10-16 12:02:13,919 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 12:02:13,920 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 12:02:13,921 INFO L429 AbstractCegarLoop]: === Iteration 1 === [P3Err0ASSERT_VIOLATIONERROR_FUNCTION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 12:02:13,927 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 12:02:13,928 INFO L82 PathProgramCache]: Analyzing trace with hash -1471934063, now seen corresponding path program 1 times [2020-10-16 12:02:13,940 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 12:02:13,940 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [840627730] [2020-10-16 12:02:13,941 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 12:02:14,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 12:02:14,205 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 12:02:14,208 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [840627730] [2020-10-16 12:02:14,209 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 12:02:14,210 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-10-16 12:02:14,211 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [31952687] [2020-10-16 12:02:14,217 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-16 12:02:14,217 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 12:02:14,234 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-16 12:02:14,235 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-16 12:02:14,237 INFO L87 Difference]: Start difference. First operand 2410 states. Second operand 3 states. [2020-10-16 12:02:14,342 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 12:02:14,342 INFO L93 Difference]: Finished difference Result 2090 states and 7968 transitions. [2020-10-16 12:02:14,345 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-16 12:02:14,347 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 9 [2020-10-16 12:02:14,348 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 12:02:14,402 INFO L225 Difference]: With dead ends: 2090 [2020-10-16 12:02:14,402 INFO L226 Difference]: Without dead ends: 1706 [2020-10-16 12:02:14,404 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 12:02:14,448 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1706 states. [2020-10-16 12:02:14,573 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1706 to 1706. [2020-10-16 12:02:14,575 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1706 states. [2020-10-16 12:02:14,594 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1706 states to 1706 states and 6400 transitions. [2020-10-16 12:02:14,596 INFO L78 Accepts]: Start accepts. Automaton has 1706 states and 6400 transitions. Word has length 9 [2020-10-16 12:02:14,600 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 12:02:14,601 INFO L481 AbstractCegarLoop]: Abstraction has 1706 states and 6400 transitions. [2020-10-16 12:02:14,601 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-16 12:02:14,601 INFO L276 IsEmpty]: Start isEmpty. Operand 1706 states and 6400 transitions. [2020-10-16 12:02:14,606 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-10-16 12:02:14,606 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 12:02:14,607 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 12:02:14,607 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-16 12:02:14,607 INFO L429 AbstractCegarLoop]: === Iteration 2 === [P3Err0ASSERT_VIOLATIONERROR_FUNCTION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 12:02:14,608 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 12:02:14,608 INFO L82 PathProgramCache]: Analyzing trace with hash -1484337804, now seen corresponding path program 1 times [2020-10-16 12:02:14,608 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 12:02:14,609 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1816859673] [2020-10-16 12:02:14,609 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 12:02:14,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 12:02:14,761 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 12:02:14,762 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1816859673] [2020-10-16 12:02:14,762 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 12:02:14,762 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-10-16 12:02:14,762 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1170240601] [2020-10-16 12:02:14,764 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-16 12:02:14,764 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 12:02:14,765 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-16 12:02:14,765 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-16 12:02:14,766 INFO L87 Difference]: Start difference. First operand 1706 states and 6400 transitions. Second operand 3 states. [2020-10-16 12:02:14,789 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 12:02:14,790 INFO L93 Difference]: Finished difference Result 1578 states and 5856 transitions. [2020-10-16 12:02:14,790 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-16 12:02:14,790 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 11 [2020-10-16 12:02:14,791 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 12:02:14,804 INFO L225 Difference]: With dead ends: 1578 [2020-10-16 12:02:14,805 INFO L226 Difference]: Without dead ends: 1578 [2020-10-16 12:02:14,806 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 12:02:14,816 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1578 states. [2020-10-16 12:02:14,857 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1578 to 1578. [2020-10-16 12:02:14,858 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1578 states. [2020-10-16 12:02:14,867 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1578 states to 1578 states and 5856 transitions. [2020-10-16 12:02:14,867 INFO L78 Accepts]: Start accepts. Automaton has 1578 states and 5856 transitions. Word has length 11 [2020-10-16 12:02:14,868 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 12:02:14,868 INFO L481 AbstractCegarLoop]: Abstraction has 1578 states and 5856 transitions. [2020-10-16 12:02:14,868 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-16 12:02:14,868 INFO L276 IsEmpty]: Start isEmpty. Operand 1578 states and 5856 transitions. [2020-10-16 12:02:14,871 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-10-16 12:02:14,871 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 12:02:14,872 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 12:02:14,872 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-16 12:02:14,872 INFO L429 AbstractCegarLoop]: === Iteration 3 === [P3Err0ASSERT_VIOLATIONERROR_FUNCTION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 12:02:14,872 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 12:02:14,872 INFO L82 PathProgramCache]: Analyzing trace with hash -524986558, now seen corresponding path program 1 times [2020-10-16 12:02:14,873 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 12:02:14,873 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [626441327] [2020-10-16 12:02:14,873 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 12:02:14,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 12:02:15,005 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 12:02:15,006 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [626441327] [2020-10-16 12:02:15,006 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 12:02:15,007 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-16 12:02:15,008 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [857572670] [2020-10-16 12:02:15,008 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-16 12:02:15,009 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 12:02:15,009 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-16 12:02:15,009 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-16 12:02:15,009 INFO L87 Difference]: Start difference. First operand 1578 states and 5856 transitions. Second operand 4 states. [2020-10-16 12:02:15,084 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 12:02:15,085 INFO L93 Difference]: Finished difference Result 1611 states and 5420 transitions. [2020-10-16 12:02:15,085 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-16 12:02:15,085 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 13 [2020-10-16 12:02:15,086 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 12:02:15,096 INFO L225 Difference]: With dead ends: 1611 [2020-10-16 12:02:15,096 INFO L226 Difference]: Without dead ends: 1227 [2020-10-16 12:02:15,097 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 12:02:15,103 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1227 states. [2020-10-16 12:02:15,132 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1227 to 1227. [2020-10-16 12:02:15,133 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1227 states. [2020-10-16 12:02:15,139 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1227 states to 1227 states and 4101 transitions. [2020-10-16 12:02:15,140 INFO L78 Accepts]: Start accepts. Automaton has 1227 states and 4101 transitions. Word has length 13 [2020-10-16 12:02:15,140 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 12:02:15,140 INFO L481 AbstractCegarLoop]: Abstraction has 1227 states and 4101 transitions. [2020-10-16 12:02:15,140 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-16 12:02:15,140 INFO L276 IsEmpty]: Start isEmpty. Operand 1227 states and 4101 transitions. [2020-10-16 12:02:15,142 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-10-16 12:02:15,143 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 12:02:15,143 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 12:02:15,143 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-16 12:02:15,143 INFO L429 AbstractCegarLoop]: === Iteration 4 === [P3Err0ASSERT_VIOLATIONERROR_FUNCTION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 12:02:15,144 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 12:02:15,144 INFO L82 PathProgramCache]: Analyzing trace with hash 289915520, now seen corresponding path program 1 times [2020-10-16 12:02:15,144 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 12:02:15,144 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [140537041] [2020-10-16 12:02:15,145 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 12:02:15,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 12:02:15,225 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 12:02:15,226 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [140537041] [2020-10-16 12:02:15,226 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 12:02:15,226 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-16 12:02:15,226 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1911385891] [2020-10-16 12:02:15,227 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-16 12:02:15,227 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 12:02:15,227 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-16 12:02:15,227 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-16 12:02:15,228 INFO L87 Difference]: Start difference. First operand 1227 states and 4101 transitions. Second operand 5 states. [2020-10-16 12:02:15,360 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 12:02:15,360 INFO L93 Difference]: Finished difference Result 1044 states and 3179 transitions. [2020-10-16 12:02:15,361 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-16 12:02:15,361 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 16 [2020-10-16 12:02:15,361 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 12:02:15,367 INFO L225 Difference]: With dead ends: 1044 [2020-10-16 12:02:15,368 INFO L226 Difference]: Without dead ends: 795 [2020-10-16 12:02:15,368 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 12:02:15,372 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 795 states. [2020-10-16 12:02:15,388 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 795 to 795. [2020-10-16 12:02:15,388 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 795 states. [2020-10-16 12:02:15,392 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 795 states to 795 states and 2373 transitions. [2020-10-16 12:02:15,393 INFO L78 Accepts]: Start accepts. Automaton has 795 states and 2373 transitions. Word has length 16 [2020-10-16 12:02:15,393 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 12:02:15,393 INFO L481 AbstractCegarLoop]: Abstraction has 795 states and 2373 transitions. [2020-10-16 12:02:15,393 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-16 12:02:15,393 INFO L276 IsEmpty]: Start isEmpty. Operand 795 states and 2373 transitions. [2020-10-16 12:02:15,395 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-10-16 12:02:15,396 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 12:02:15,396 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 12:02:15,396 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-16 12:02:15,396 INFO L429 AbstractCegarLoop]: === Iteration 5 === [P3Err0ASSERT_VIOLATIONERROR_FUNCTION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 12:02:15,396 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 12:02:15,397 INFO L82 PathProgramCache]: Analyzing trace with hash -471385396, now seen corresponding path program 1 times [2020-10-16 12:02:15,397 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 12:02:15,397 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1741362384] [2020-10-16 12:02:15,398 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 12:02:15,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 12:02:15,496 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 12:02:15,496 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1741362384] [2020-10-16 12:02:15,496 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 12:02:15,497 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-16 12:02:15,497 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1073851592] [2020-10-16 12:02:15,497 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-16 12:02:15,497 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 12:02:15,498 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-16 12:02:15,498 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-10-16 12:02:15,498 INFO L87 Difference]: Start difference. First operand 795 states and 2373 transitions. Second operand 6 states. [2020-10-16 12:02:15,574 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 12:02:15,574 INFO L93 Difference]: Finished difference Result 684 states and 2009 transitions. [2020-10-16 12:02:15,575 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-16 12:02:15,575 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 19 [2020-10-16 12:02:15,575 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 12:02:15,579 INFO L225 Difference]: With dead ends: 684 [2020-10-16 12:02:15,580 INFO L226 Difference]: Without dead ends: 597 [2020-10-16 12:02:15,580 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 12:02:15,583 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 597 states. [2020-10-16 12:02:15,595 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 597 to 597. [2020-10-16 12:02:15,596 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 597 states. [2020-10-16 12:02:15,599 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 597 states to 597 states and 1779 transitions. [2020-10-16 12:02:15,599 INFO L78 Accepts]: Start accepts. Automaton has 597 states and 1779 transitions. Word has length 19 [2020-10-16 12:02:15,599 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 12:02:15,599 INFO L481 AbstractCegarLoop]: Abstraction has 597 states and 1779 transitions. [2020-10-16 12:02:15,600 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-16 12:02:15,600 INFO L276 IsEmpty]: Start isEmpty. Operand 597 states and 1779 transitions. [2020-10-16 12:02:15,602 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-10-16 12:02:15,602 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 12:02:15,602 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 12:02:15,603 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-16 12:02:15,603 INFO L429 AbstractCegarLoop]: === Iteration 6 === [P3Err0ASSERT_VIOLATIONERROR_FUNCTION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 12:02:15,603 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 12:02:15,603 INFO L82 PathProgramCache]: Analyzing trace with hash 739644517, now seen corresponding path program 1 times [2020-10-16 12:02:15,604 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 12:02:15,604 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1056797340] [2020-10-16 12:02:15,604 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 12:02:15,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 12:02:15,753 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 12:02:15,754 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1056797340] [2020-10-16 12:02:15,754 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 12:02:15,754 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-16 12:02:15,754 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [799397657] [2020-10-16 12:02:15,755 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-16 12:02:15,755 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 12:02:15,755 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-16 12:02:15,756 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-10-16 12:02:15,756 INFO L87 Difference]: Start difference. First operand 597 states and 1779 transitions. Second operand 7 states. [2020-10-16 12:02:15,832 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 12:02:15,833 INFO L93 Difference]: Finished difference Result 572 states and 1727 transitions. [2020-10-16 12:02:15,834 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-16 12:02:15,834 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 22 [2020-10-16 12:02:15,834 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 12:02:15,838 INFO L225 Difference]: With dead ends: 572 [2020-10-16 12:02:15,838 INFO L226 Difference]: Without dead ends: 557 [2020-10-16 12:02:15,839 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 12:02:15,841 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 557 states. [2020-10-16 12:02:15,853 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 557 to 557. [2020-10-16 12:02:15,853 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 557 states. [2020-10-16 12:02:15,855 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 557 states to 557 states and 1699 transitions. [2020-10-16 12:02:15,855 INFO L78 Accepts]: Start accepts. Automaton has 557 states and 1699 transitions. Word has length 22 [2020-10-16 12:02:15,856 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 12:02:15,856 INFO L481 AbstractCegarLoop]: Abstraction has 557 states and 1699 transitions. [2020-10-16 12:02:15,856 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-16 12:02:15,856 INFO L276 IsEmpty]: Start isEmpty. Operand 557 states and 1699 transitions. [2020-10-16 12:02:15,858 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-10-16 12:02:15,858 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 12:02:15,858 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 12:02:15,859 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-16 12:02:15,859 INFO L429 AbstractCegarLoop]: === Iteration 7 === [P3Err0ASSERT_VIOLATIONERROR_FUNCTION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 12:02:15,859 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 12:02:15,859 INFO L82 PathProgramCache]: Analyzing trace with hash -806070774, now seen corresponding path program 1 times [2020-10-16 12:02:15,860 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 12:02:15,860 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1621257849] [2020-10-16 12:02:15,860 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 12:02:15,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 12:02:15,924 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 12:02:15,924 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1621257849] [2020-10-16 12:02:15,925 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 12:02:15,925 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-16 12:02:15,925 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [174390843] [2020-10-16 12:02:15,925 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-16 12:02:15,926 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 12:02:15,926 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-16 12:02:15,926 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-16 12:02:15,926 INFO L87 Difference]: Start difference. First operand 557 states and 1699 transitions. Second operand 4 states. [2020-10-16 12:02:15,944 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 12:02:15,944 INFO L93 Difference]: Finished difference Result 703 states and 2109 transitions. [2020-10-16 12:02:15,944 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-16 12:02:15,945 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 25 [2020-10-16 12:02:15,945 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 12:02:15,947 INFO L225 Difference]: With dead ends: 703 [2020-10-16 12:02:15,947 INFO L226 Difference]: Without dead ends: 287 [2020-10-16 12:02:15,948 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 12:02:15,949 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 287 states. [2020-10-16 12:02:15,954 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 287 to 287. [2020-10-16 12:02:15,955 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 287 states. [2020-10-16 12:02:15,956 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 287 states to 287 states and 781 transitions. [2020-10-16 12:02:15,956 INFO L78 Accepts]: Start accepts. Automaton has 287 states and 781 transitions. Word has length 25 [2020-10-16 12:02:15,956 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 12:02:15,956 INFO L481 AbstractCegarLoop]: Abstraction has 287 states and 781 transitions. [2020-10-16 12:02:15,957 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-16 12:02:15,957 INFO L276 IsEmpty]: Start isEmpty. Operand 287 states and 781 transitions. [2020-10-16 12:02:15,958 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-10-16 12:02:15,958 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 12:02:15,958 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 12:02:15,958 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-16 12:02:15,959 INFO L429 AbstractCegarLoop]: === Iteration 8 === [P3Err0ASSERT_VIOLATIONERROR_FUNCTION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 12:02:15,959 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 12:02:15,959 INFO L82 PathProgramCache]: Analyzing trace with hash 896500326, now seen corresponding path program 2 times [2020-10-16 12:02:15,959 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 12:02:15,959 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1375225448] [2020-10-16 12:02:15,960 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 12:02:15,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 12:02:16,026 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 12:02:16,027 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1375225448] [2020-10-16 12:02:16,028 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 12:02:16,028 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-16 12:02:16,028 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [951859817] [2020-10-16 12:02:16,029 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-16 12:02:16,029 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 12:02:16,029 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-16 12:02:16,029 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-16 12:02:16,029 INFO L87 Difference]: Start difference. First operand 287 states and 781 transitions. Second operand 4 states. [2020-10-16 12:02:16,046 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 12:02:16,047 INFO L93 Difference]: Finished difference Result 361 states and 969 transitions. [2020-10-16 12:02:16,047 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-16 12:02:16,047 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 25 [2020-10-16 12:02:16,047 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 12:02:16,049 INFO L225 Difference]: With dead ends: 361 [2020-10-16 12:02:16,049 INFO L226 Difference]: Without dead ends: 149 [2020-10-16 12:02:16,049 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 12:02:16,050 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 149 states. [2020-10-16 12:02:16,053 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 149 to 149. [2020-10-16 12:02:16,054 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 149 states. [2020-10-16 12:02:16,054 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 149 states to 149 states and 358 transitions. [2020-10-16 12:02:16,055 INFO L78 Accepts]: Start accepts. Automaton has 149 states and 358 transitions. Word has length 25 [2020-10-16 12:02:16,056 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 12:02:16,056 INFO L481 AbstractCegarLoop]: Abstraction has 149 states and 358 transitions. [2020-10-16 12:02:16,057 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-16 12:02:16,057 INFO L276 IsEmpty]: Start isEmpty. Operand 149 states and 358 transitions. [2020-10-16 12:02:16,058 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-10-16 12:02:16,058 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 12:02:16,058 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 12:02:16,058 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-16 12:02:16,058 INFO L429 AbstractCegarLoop]: === Iteration 9 === [P3Err0ASSERT_VIOLATIONERROR_FUNCTION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 12:02:16,059 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 12:02:16,059 INFO L82 PathProgramCache]: Analyzing trace with hash -665819124, now seen corresponding path program 3 times [2020-10-16 12:02:16,061 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 12:02:16,061 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [98629514] [2020-10-16 12:02:16,061 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 12:02:16,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 12:02:16,112 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 12:02:16,113 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [98629514] [2020-10-16 12:02:16,113 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 12:02:16,113 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-16 12:02:16,114 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1196001601] [2020-10-16 12:02:16,114 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-16 12:02:16,114 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 12:02:16,115 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-16 12:02:16,115 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-16 12:02:16,115 INFO L87 Difference]: Start difference. First operand 149 states and 358 transitions. Second operand 4 states. [2020-10-16 12:02:16,129 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 12:02:16,129 INFO L93 Difference]: Finished difference Result 187 states and 444 transitions. [2020-10-16 12:02:16,130 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-16 12:02:16,130 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 25 [2020-10-16 12:02:16,130 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 12:02:16,131 INFO L225 Difference]: With dead ends: 187 [2020-10-16 12:02:16,131 INFO L226 Difference]: Without dead ends: 80 [2020-10-16 12:02:16,131 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 12:02:16,132 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80 states. [2020-10-16 12:02:16,134 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80 to 80. [2020-10-16 12:02:16,134 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 80 states. [2020-10-16 12:02:16,134 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 166 transitions. [2020-10-16 12:02:16,134 INFO L78 Accepts]: Start accepts. Automaton has 80 states and 166 transitions. Word has length 25 [2020-10-16 12:02:16,135 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 12:02:16,135 INFO L481 AbstractCegarLoop]: Abstraction has 80 states and 166 transitions. [2020-10-16 12:02:16,135 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-16 12:02:16,135 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 166 transitions. [2020-10-16 12:02:16,136 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-10-16 12:02:16,136 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 12:02:16,136 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 12:02:16,136 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-16 12:02:16,136 INFO L429 AbstractCegarLoop]: === Iteration 10 === [P3Err0ASSERT_VIOLATIONERROR_FUNCTION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 12:02:16,137 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 12:02:16,137 INFO L82 PathProgramCache]: Analyzing trace with hash -836455300, now seen corresponding path program 4 times [2020-10-16 12:02:16,137 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 12:02:16,137 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1583597989] [2020-10-16 12:02:16,138 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 12:02:16,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 12:02:16,246 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 12:02:16,247 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1583597989] [2020-10-16 12:02:16,247 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 12:02:16,247 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-16 12:02:16,247 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2017656797] [2020-10-16 12:02:16,248 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-16 12:02:16,248 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 12:02:16,248 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-16 12:02:16,248 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-16 12:02:16,248 INFO L87 Difference]: Start difference. First operand 80 states and 166 transitions. Second operand 5 states. [2020-10-16 12:02:16,299 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 12:02:16,299 INFO L93 Difference]: Finished difference Result 98 states and 200 transitions. [2020-10-16 12:02:16,300 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-16 12:02:16,300 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 25 [2020-10-16 12:02:16,300 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 12:02:16,301 INFO L225 Difference]: With dead ends: 98 [2020-10-16 12:02:16,301 INFO L226 Difference]: Without dead ends: 52 [2020-10-16 12:02:16,301 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-16 12:02:16,302 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2020-10-16 12:02:16,302 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 52. [2020-10-16 12:02:16,303 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 52 states. [2020-10-16 12:02:16,303 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 90 transitions. [2020-10-16 12:02:16,303 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 90 transitions. Word has length 25 [2020-10-16 12:02:16,303 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 12:02:16,304 INFO L481 AbstractCegarLoop]: Abstraction has 52 states and 90 transitions. [2020-10-16 12:02:16,304 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-16 12:02:16,304 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 90 transitions. [2020-10-16 12:02:16,304 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-10-16 12:02:16,305 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 12:02:16,305 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 12:02:16,305 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-16 12:02:16,305 INFO L429 AbstractCegarLoop]: === Iteration 11 === [P3Err0ASSERT_VIOLATIONERROR_FUNCTION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 12:02:16,305 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 12:02:16,305 INFO L82 PathProgramCache]: Analyzing trace with hash -864137166, now seen corresponding path program 5 times [2020-10-16 12:02:16,306 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 12:02:16,306 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1638288013] [2020-10-16 12:02:16,306 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 12:02:16,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-16 12:02:16,342 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-16 12:02:16,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-16 12:02:16,379 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-16 12:02:16,427 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-16 12:02:16,428 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-16 12:02:16,428 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-16 12:02:16,429 WARN L264 etLargeBlockEncoding]: Failed to translate choice composition: Branch encoders not available. [2020-10-16 12:02:16,458 WARN L124 codingBacktranslator]: Skipped backtranslation of ATE [890] [890] L858-->L865: Formula: (let ((.cse6 (= (mod ~z$w_buff0_used~0_In-1945982074 256) 0)) (.cse7 (= (mod ~z$r_buff0_thd0~0_In-1945982074 256) 0)) (.cse8 (= (mod ~z$w_buff1_used~0_In-1945982074 256) 0)) (.cse9 (= (mod ~z$r_buff1_thd0~0_In-1945982074 256) 0))) (let ((.cse1 (not .cse9)) (.cse2 (not .cse8)) (.cse0 (or .cse8 .cse9)) (.cse3 (or .cse6 .cse7)) (.cse4 (not .cse7)) (.cse5 (not .cse6))) (and (or (and (= ~z$w_buff1_used~0_In-1945982074 ~z$w_buff1_used~0_Out-1945982074) .cse0) (and (= ~z$w_buff1_used~0_Out-1945982074 0) .cse1 .cse2)) (or (and (= ~z$w_buff0_used~0_Out-1945982074 ~z$w_buff0_used~0_In-1945982074) .cse3) (and .cse4 .cse5 (= ~z$w_buff0_used~0_Out-1945982074 0))) (= ~z$r_buff0_thd0~0_In-1945982074 ~z$r_buff0_thd0~0_Out-1945982074) (= ULTIMATE.start_assume_abort_if_not_~cond_Out-1945982074 |ULTIMATE.start_assume_abort_if_not_#in~cond_In-1945982074|) (not (= ULTIMATE.start_assume_abort_if_not_~cond_Out-1945982074 0)) (= ~z$r_buff1_thd0~0_Out-1945982074 ~z$r_buff1_thd0~0_In-1945982074) (or (and (or (and (= ~z$w_buff1~0_In-1945982074 ~z~0_Out-1945982074) .cse1 .cse2) (and .cse0 (= ~z~0_In-1945982074 ~z~0_Out-1945982074))) .cse3) (and (= ~z~0_Out-1945982074 ~z$w_buff0~0_In-1945982074) .cse4 .cse5))))) InVars {ULTIMATE.start_assume_abort_if_not_#in~cond=|ULTIMATE.start_assume_abort_if_not_#in~cond_In-1945982074|, ~z$r_buff0_thd0~0=~z$r_buff0_thd0~0_In-1945982074, ~z$w_buff0_used~0=~z$w_buff0_used~0_In-1945982074, ~z$w_buff0~0=~z$w_buff0~0_In-1945982074, ~z$r_buff1_thd0~0=~z$r_buff1_thd0~0_In-1945982074, ~z$w_buff1_used~0=~z$w_buff1_used~0_In-1945982074, ~z$w_buff1~0=~z$w_buff1~0_In-1945982074, ~z~0=~z~0_In-1945982074} OutVars{~z$w_buff0_used~0=~z$w_buff0_used~0_Out-1945982074, ULTIMATE.start_main_#t~ite39=|ULTIMATE.start_main_#t~ite39_Out-1945982074|, ~z$w_buff0~0=~z$w_buff0~0_In-1945982074, ~z$w_buff1_used~0=~z$w_buff1_used~0_Out-1945982074, ULTIMATE.start_main_#t~ite35=|ULTIMATE.start_main_#t~ite35_Out-1945982074|, ULTIMATE.start_main_#t~ite36=|ULTIMATE.start_main_#t~ite36_Out-1945982074|, ~z$w_buff1~0=~z$w_buff1~0_In-1945982074, ULTIMATE.start_main_#t~ite38=|ULTIMATE.start_main_#t~ite38_Out-1945982074|, ULTIMATE.start_main_#t~ite37=|ULTIMATE.start_main_#t~ite37_Out-1945982074|, ULTIMATE.start_assume_abort_if_not_#in~cond=|ULTIMATE.start_assume_abort_if_not_#in~cond_In-1945982074|, ~z$r_buff0_thd0~0=~z$r_buff0_thd0~0_Out-1945982074, ULTIMATE.start_main_#t~ite40=|ULTIMATE.start_main_#t~ite40_Out-1945982074|, ULTIMATE.start_assume_abort_if_not_~cond=ULTIMATE.start_assume_abort_if_not_~cond_Out-1945982074, ~z$r_buff1_thd0~0=~z$r_buff1_thd0~0_Out-1945982074, ~z~0=~z~0_Out-1945982074} AuxVars[] AssignedVars[~z$r_buff0_thd0~0, ULTIMATE.start_main_#t~ite40, ULTIMATE.start_assume_abort_if_not_~cond, ~z$w_buff0_used~0, ULTIMATE.start_main_#t~ite39, ~z$r_buff1_thd0~0, ~z$w_buff1_used~0, ULTIMATE.start_main_#t~ite35, ULTIMATE.start_main_#t~ite36, ULTIMATE.start_main_#t~ite38, ULTIMATE.start_main_#t~ite37, ~z~0] because there is no mapped edge [2020-10-16 12:02:16,473 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 12:02:16,473 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-16 12:02:16,476 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 12:02:16,476 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-16 12:02:16,476 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 12:02:16,476 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-16 12:02:16,477 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 12:02:16,477 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-16 12:02:16,478 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 12:02:16,478 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-16 12:02:16,478 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 12:02:16,478 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-16 12:02:16,479 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 12:02:16,479 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-16 12:02:16,479 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 12:02:16,479 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-16 12:02:16,479 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 12:02:16,480 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-16 12:02:16,480 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 12:02:16,480 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-16 12:02:16,480 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 12:02:16,481 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-16 12:02:16,481 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 12:02:16,481 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-16 12:02:16,481 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 12:02:16,482 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-16 12:02:16,482 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 12:02:16,482 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-16 12:02:16,486 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 12:02:16,486 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-16 12:02:16,579 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.10 12:02:16 BasicIcfg [2020-10-16 12:02:16,579 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-16 12:02:16,581 INFO L168 Benchmark]: Toolchain (without parser) took 9147.69 ms. Allocated memory was 137.4 MB in the beginning and 354.9 MB in the end (delta: 217.6 MB). Free memory was 98.7 MB in the beginning and 93.0 MB in the end (delta: 5.7 MB). Peak memory consumption was 223.3 MB. Max. memory is 7.1 GB. [2020-10-16 12:02:16,582 INFO L168 Benchmark]: CDTParser took 0.48 ms. Allocated memory is still 137.4 MB. Free memory was 118.9 MB in the beginning and 118.5 MB in the end (delta: 419.6 kB). Peak memory consumption was 419.6 kB. Max. memory is 7.1 GB. [2020-10-16 12:02:16,583 INFO L168 Benchmark]: CACSL2BoogieTranslator took 857.50 ms. Allocated memory was 137.4 MB in the beginning and 200.8 MB in the end (delta: 63.4 MB). Free memory was 98.3 MB in the beginning and 154.7 MB in the end (delta: -56.5 MB). Peak memory consumption was 26.7 MB. Max. memory is 7.1 GB. [2020-10-16 12:02:16,584 INFO L168 Benchmark]: Boogie Procedure Inliner took 65.82 ms. Allocated memory is still 200.8 MB. Free memory was 154.7 MB in the beginning and 152.6 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 7.1 GB. [2020-10-16 12:02:16,584 INFO L168 Benchmark]: Boogie Preprocessor took 38.21 ms. Allocated memory is still 200.8 MB. Free memory was 152.6 MB in the beginning and 149.6 MB in the end (delta: 3.0 MB). Peak memory consumption was 3.0 MB. Max. memory is 7.1 GB. [2020-10-16 12:02:16,585 INFO L168 Benchmark]: RCFGBuilder took 1860.35 ms. Allocated memory was 200.8 MB in the beginning and 229.6 MB in the end (delta: 28.8 MB). Free memory was 149.6 MB in the beginning and 80.7 MB in the end (delta: 68.9 MB). Peak memory consumption was 97.8 MB. Max. memory is 7.1 GB. [2020-10-16 12:02:16,586 INFO L168 Benchmark]: TraceAbstraction took 6318.77 ms. Allocated memory was 229.6 MB in the beginning and 354.9 MB in the end (delta: 125.3 MB). Free memory was 80.7 MB in the beginning and 93.0 MB in the end (delta: -12.3 MB). Peak memory consumption was 113.0 MB. Max. memory is 7.1 GB. [2020-10-16 12:02:16,591 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.48 ms. Allocated memory is still 137.4 MB. Free memory was 118.9 MB in the beginning and 118.5 MB in the end (delta: 419.6 kB). Peak memory consumption was 419.6 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 857.50 ms. Allocated memory was 137.4 MB in the beginning and 200.8 MB in the end (delta: 63.4 MB). Free memory was 98.3 MB in the beginning and 154.7 MB in the end (delta: -56.5 MB). Peak memory consumption was 26.7 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 65.82 ms. Allocated memory is still 200.8 MB. Free memory was 154.7 MB in the beginning and 152.6 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 38.21 ms. Allocated memory is still 200.8 MB. Free memory was 152.6 MB in the beginning and 149.6 MB in the end (delta: 3.0 MB). Peak memory consumption was 3.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1860.35 ms. Allocated memory was 200.8 MB in the beginning and 229.6 MB in the end (delta: 28.8 MB). Free memory was 149.6 MB in the beginning and 80.7 MB in the end (delta: 68.9 MB). Peak memory consumption was 97.8 MB. Max. memory is 7.1 GB. * TraceAbstraction took 6318.77 ms. Allocated memory was 229.6 MB in the beginning and 354.9 MB in the end (delta: 125.3 MB). Free memory was 80.7 MB in the beginning and 93.0 MB in the end (delta: -12.3 MB). Peak memory consumption was 113.0 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 1328 VarBasedMoverChecksPositive, 40 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 0 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 138 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 3.2s, 124 PlacesBefore, 44 PlacesAfterwards, 113 TransitionsBefore, 32 TransitionsAfterwards, 2432 CoEnabledTransitionPairs, 7 FixpointIterations, 39 TrivialSequentialCompositions, 47 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 7 ConcurrentYvCompositions, 1 ChoiceCompositions, 94 TotalNumberOfCompositions, 6367 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_p2_EAX = 0; [L707] 0 int __unbuffered_p3_EAX = 0; [L709] 0 int __unbuffered_p3_EBX = 0; [L711] 0 int a = 0; [L713] 0 int b = 0; [L714] 0 _Bool main$tmp_guard0; [L715] 0 _Bool main$tmp_guard1; [L717] 0 int x = 0; [L719] 0 int y = 0; [L721] 0 int z = 0; [L722] 0 _Bool z$flush_delayed; [L723] 0 int z$mem_tmp; [L724] 0 _Bool z$r_buff0_thd0; [L725] 0 _Bool z$r_buff0_thd1; [L726] 0 _Bool z$r_buff0_thd2; [L727] 0 _Bool z$r_buff0_thd3; [L728] 0 _Bool z$r_buff0_thd4; [L729] 0 _Bool z$r_buff1_thd0; [L730] 0 _Bool z$r_buff1_thd1; [L731] 0 _Bool z$r_buff1_thd2; [L732] 0 _Bool z$r_buff1_thd3; [L733] 0 _Bool z$r_buff1_thd4; [L734] 0 _Bool z$read_delayed; [L735] 0 int *z$read_delayed_var; [L736] 0 int z$w_buff0; [L737] 0 _Bool z$w_buff0_used; [L738] 0 int z$w_buff1; [L739] 0 _Bool z$w_buff1_used; [L740] 0 _Bool weak$$choice0; [L741] 0 _Bool weak$$choice2; [L847] 0 pthread_t t965; [L848] FCALL, FORK 0 pthread_create(&t965, ((void *)0), P0, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p2_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] [L849] 0 pthread_t t966; [L850] FCALL, FORK 0 pthread_create(&t966, ((void *)0), P1, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p2_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] [L851] 0 pthread_t t967; [L852] FCALL, FORK 0 pthread_create(&t967, ((void *)0), P2, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p2_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] [L853] 0 pthread_t t968; [L854] FCALL, FORK 0 pthread_create(&t968, ((void *)0), P3, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p2_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] [L803] 4 z$w_buff1 = z$w_buff0 [L804] 4 z$w_buff0 = 1 [L805] 4 z$w_buff1_used = z$w_buff0_used [L806] 4 z$w_buff0_used = (_Bool)1 [L7] COND TRUE 4 !expression [L7] 4 __VERIFIER_error() [L808] 4 z$r_buff1_thd0 = z$r_buff0_thd0 [L809] 4 z$r_buff1_thd1 = z$r_buff0_thd1 [L810] 4 z$r_buff1_thd2 = z$r_buff0_thd2 [L811] 4 z$r_buff1_thd3 = z$r_buff0_thd3 [L812] 4 z$r_buff1_thd4 = z$r_buff0_thd4 [L813] 4 z$r_buff0_thd4 = (_Bool)1 [L816] 4 a = 1 VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, b=0, main$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$w_buff0=1, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0] [L819] 4 __unbuffered_p3_EAX = a VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p2_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$w_buff0=1, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0] [L822] 4 __unbuffered_p3_EBX = b VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p2_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$w_buff0=1, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0] [L745] 1 b = 1 VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p2_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$w_buff0=1, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0] [L748] 1 __unbuffered_p0_EAX = x VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p2_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$w_buff0=1, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0] [L760] 2 x = 1 VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p2_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$w_buff0=1, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0] [L763] 2 __unbuffered_p1_EAX = y VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p2_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$w_buff0=1, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0] [L775] 3 y = 1 VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p2_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$w_buff0=1, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0] [L778] 3 weak$$choice0 = __VERIFIER_nondet_bool() [L779] 3 weak$$choice2 = __VERIFIER_nondet_bool() [L780] 3 z$flush_delayed = weak$$choice2 [L781] 3 z$mem_tmp = z [L782] EXPR 3 !z$w_buff0_used || !z$r_buff0_thd3 && !z$w_buff1_used || !z$r_buff0_thd3 && !z$r_buff1_thd3 ? z : (z$w_buff0_used && z$r_buff0_thd3 ? z$w_buff0 : z$w_buff1) [L782] 3 z = !z$w_buff0_used || !z$r_buff0_thd3 && !z$w_buff1_used || !z$r_buff0_thd3 && !z$r_buff1_thd3 ? z : (z$w_buff0_used && z$r_buff0_thd3 ? z$w_buff0 : z$w_buff1) [L783] EXPR 3 weak$$choice2 ? z$w_buff0 : (!z$w_buff0_used || !z$r_buff0_thd3 && !z$w_buff1_used || !z$r_buff0_thd3 && !z$r_buff1_thd3 ? z$w_buff0 : (z$w_buff0_used && z$r_buff0_thd3 ? z$w_buff0 : z$w_buff0)) [L783] 3 z$w_buff0 = weak$$choice2 ? z$w_buff0 : (!z$w_buff0_used || !z$r_buff0_thd3 && !z$w_buff1_used || !z$r_buff0_thd3 && !z$r_buff1_thd3 ? z$w_buff0 : (z$w_buff0_used && z$r_buff0_thd3 ? z$w_buff0 : z$w_buff0)) [L784] EXPR 3 weak$$choice2 ? z$w_buff1 : (!z$w_buff0_used || !z$r_buff0_thd3 && !z$w_buff1_used || !z$r_buff0_thd3 && !z$r_buff1_thd3 ? z$w_buff1 : (z$w_buff0_used && z$r_buff0_thd3 ? z$w_buff1 : z$w_buff1)) [L784] 3 z$w_buff1 = weak$$choice2 ? z$w_buff1 : (!z$w_buff0_used || !z$r_buff0_thd3 && !z$w_buff1_used || !z$r_buff0_thd3 && !z$r_buff1_thd3 ? z$w_buff1 : (z$w_buff0_used && z$r_buff0_thd3 ? z$w_buff1 : z$w_buff1)) [L785] EXPR 3 weak$$choice2 ? z$w_buff0_used : (!z$w_buff0_used || !z$r_buff0_thd3 && !z$w_buff1_used || !z$r_buff0_thd3 && !z$r_buff1_thd3 ? z$w_buff0_used : (z$w_buff0_used && z$r_buff0_thd3 ? (_Bool)0 : z$w_buff0_used)) [L785] 3 z$w_buff0_used = weak$$choice2 ? z$w_buff0_used : (!z$w_buff0_used || !z$r_buff0_thd3 && !z$w_buff1_used || !z$r_buff0_thd3 && !z$r_buff1_thd3 ? z$w_buff0_used : (z$w_buff0_used && z$r_buff0_thd3 ? (_Bool)0 : z$w_buff0_used)) [L786] EXPR 3 weak$$choice2 ? z$w_buff1_used : (!z$w_buff0_used || !z$r_buff0_thd3 && !z$w_buff1_used || !z$r_buff0_thd3 && !z$r_buff1_thd3 ? z$w_buff1_used : (z$w_buff0_used && z$r_buff0_thd3 ? (_Bool)0 : (_Bool)0)) [L786] 3 z$w_buff1_used = weak$$choice2 ? z$w_buff1_used : (!z$w_buff0_used || !z$r_buff0_thd3 && !z$w_buff1_used || !z$r_buff0_thd3 && !z$r_buff1_thd3 ? z$w_buff1_used : (z$w_buff0_used && z$r_buff0_thd3 ? (_Bool)0 : (_Bool)0)) [L787] EXPR 3 weak$$choice2 ? z$r_buff0_thd3 : (!z$w_buff0_used || !z$r_buff0_thd3 && !z$w_buff1_used || !z$r_buff0_thd3 && !z$r_buff1_thd3 ? z$r_buff0_thd3 : (z$w_buff0_used && z$r_buff0_thd3 ? (_Bool)0 : z$r_buff0_thd3)) [L787] 3 z$r_buff0_thd3 = weak$$choice2 ? z$r_buff0_thd3 : (!z$w_buff0_used || !z$r_buff0_thd3 && !z$w_buff1_used || !z$r_buff0_thd3 && !z$r_buff1_thd3 ? z$r_buff0_thd3 : (z$w_buff0_used && z$r_buff0_thd3 ? (_Bool)0 : z$r_buff0_thd3)) [L788] EXPR 3 weak$$choice2 ? z$r_buff1_thd3 : (!z$w_buff0_used || !z$r_buff0_thd3 && !z$w_buff1_used || !z$r_buff0_thd3 && !z$r_buff1_thd3 ? z$r_buff1_thd3 : (z$w_buff0_used && z$r_buff0_thd3 ? (_Bool)0 : (_Bool)0)) [L788] 3 z$r_buff1_thd3 = weak$$choice2 ? z$r_buff1_thd3 : (!z$w_buff0_used || !z$r_buff0_thd3 && !z$w_buff1_used || !z$r_buff0_thd3 && !z$r_buff1_thd3 ? z$r_buff1_thd3 : (z$w_buff0_used && z$r_buff0_thd3 ? (_Bool)0 : (_Bool)0)) [L789] 3 __unbuffered_p2_EAX = z [L790] EXPR 3 z$flush_delayed ? z$mem_tmp : z [L790] 3 z = z$flush_delayed ? z$mem_tmp : z [L791] 3 z$flush_delayed = (_Bool)0 VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=1, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, b=1, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=9, weak$$choice2=255, 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=1, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0] [L825] 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) [L825] EXPR 4 z$w_buff1_used && z$r_buff1_thd4 ? z$w_buff1 : z [L825] 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) [L825] 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) [L826] EXPR 4 z$w_buff0_used && z$r_buff0_thd4 ? (_Bool)0 : z$w_buff0_used [L826] 4 z$w_buff0_used = z$w_buff0_used && z$r_buff0_thd4 ? (_Bool)0 : z$w_buff0_used [L827] EXPR 4 z$w_buff0_used && z$r_buff0_thd4 || z$w_buff1_used && z$r_buff1_thd4 ? (_Bool)0 : z$w_buff1_used [L827] 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 [L828] EXPR 4 z$w_buff0_used && z$r_buff0_thd4 ? (_Bool)0 : z$r_buff0_thd4 [L828] 4 z$r_buff0_thd4 = z$w_buff0_used && z$r_buff0_thd4 ? (_Bool)0 : z$r_buff0_thd4 [L829] EXPR 4 z$w_buff0_used && z$r_buff0_thd4 || z$w_buff1_used && z$r_buff1_thd4 ? (_Bool)0 : z$r_buff1_thd4 [L829] 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 [L796] 3 __unbuffered_cnt = __unbuffered_cnt + 1 [L798] 3 return 0; [L753] 1 __unbuffered_cnt = __unbuffered_cnt + 1 [L755] 1 return 0; [L768] 2 __unbuffered_cnt = __unbuffered_cnt + 1 [L770] 2 return 0; [L832] 4 __unbuffered_cnt = __unbuffered_cnt + 1 [L834] 4 return 0; [L856] 0 main$tmp_guard0 = __unbuffered_cnt == 4 [L867] 0 main$tmp_guard1 = !(__unbuffered_p0_EAX == 0 && __unbuffered_p1_EAX == 0 && __unbuffered_p2_EAX == 0 && __unbuffered_p3_EAX == 1 && __unbuffered_p3_EBX == 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_p2_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=255, 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$w_buff0=1, z$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: 6.0s, OverallIterations: 11, TraceHistogramMax: 1, AutomataDifference: 0.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 3.4s, HoareTripleCheckerStatistics: 338 SDtfs, 339 SDslu, 555 SDs, 0 SdLazy, 178 SolverSat, 49 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 41 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2410occurred 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: 0.3s AutomataMinimizationTime, 10 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 215 NumberOfCodeBlocks, 215 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 180 ConstructedInterpolants, 0 QuantifiedInterpolants, 11154 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 10 InterpolantComputations, 10 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...