/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/mix009_pso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-b09bf87 [2020-10-16 11:58:03,008 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-16 11:58:03,012 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-16 11:58:03,048 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-16 11:58:03,048 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-16 11:58:03,049 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-16 11:58:03,051 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-16 11:58:03,052 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-16 11:58:03,054 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-16 11:58:03,055 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-16 11:58:03,056 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-16 11:58:03,057 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-16 11:58:03,057 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-16 11:58:03,058 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-16 11:58:03,059 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-16 11:58:03,060 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-16 11:58:03,061 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-16 11:58:03,062 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-16 11:58:03,063 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-16 11:58:03,065 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-16 11:58:03,066 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-16 11:58:03,068 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-16 11:58:03,069 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-16 11:58:03,069 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-16 11:58:03,072 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-16 11:58:03,072 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-16 11:58:03,072 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-16 11:58:03,073 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-16 11:58:03,074 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-16 11:58:03,075 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-16 11:58:03,075 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-16 11:58:03,075 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-16 11:58:03,076 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-16 11:58:03,077 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-16 11:58:03,078 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-16 11:58:03,078 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-16 11:58:03,079 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-16 11:58:03,079 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-16 11:58:03,079 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-16 11:58:03,080 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-16 11:58:03,080 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-16 11:58:03,081 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 11:58:03,103 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-16 11:58:03,103 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-16 11:58:03,105 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-16 11:58:03,105 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-16 11:58:03,105 INFO L138 SettingsManager]: * Use SBE=true [2020-10-16 11:58:03,105 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-16 11:58:03,105 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-16 11:58:03,106 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-16 11:58:03,106 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-16 11:58:03,106 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-16 11:58:03,106 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-16 11:58:03,106 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-16 11:58:03,107 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-16 11:58:03,107 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-16 11:58:03,107 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-16 11:58:03,107 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-16 11:58:03,107 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-16 11:58:03,108 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-16 11:58:03,108 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-16 11:58:03,108 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-16 11:58:03,108 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-16 11:58:03,108 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-16 11:58:03,109 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-16 11:58:03,109 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_NestedInterpolation [2020-10-16 11:58:03,109 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-16 11:58:03,109 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-16 11:58:03,109 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-16 11:58:03,109 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=VARIABLE_BASED_MOVER_CHECK [2020-10-16 11:58:03,110 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-16 11:58:03,426 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-16 11:58:03,436 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-16 11:58:03,439 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-16 11:58:03,441 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-16 11:58:03,441 INFO L275 PluginConnector]: CDTParser initialized [2020-10-16 11:58:03,442 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/mix009_pso.oepc.i [2020-10-16 11:58:03,505 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/5059ac588/ccc9b7f06ad24196b3e58be86e62d8a4/FLAG2695f0efe [2020-10-16 11:58:04,026 INFO L306 CDTParser]: Found 1 translation units. [2020-10-16 11:58:04,027 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/pthread-wmm/mix009_pso.oepc.i [2020-10-16 11:58:04,056 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/5059ac588/ccc9b7f06ad24196b3e58be86e62d8a4/FLAG2695f0efe [2020-10-16 11:58:04,304 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/5059ac588/ccc9b7f06ad24196b3e58be86e62d8a4 [2020-10-16 11:58:04,315 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-16 11:58:04,317 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-10-16 11:58:04,318 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-16 11:58:04,319 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-16 11:58:04,322 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-16 11:58:04,324 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 11:58:04" (1/1) ... [2020-10-16 11:58:04,327 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1f70bffb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:58:04, skipping insertion in model container [2020-10-16 11:58:04,327 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 11:58:04" (1/1) ... [2020-10-16 11:58:04,335 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-16 11:58:04,381 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-16 11:58:05,014 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-16 11:58:05,031 INFO L203 MainTranslator]: Completed pre-run [2020-10-16 11:58:05,098 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-16 11:58:05,212 INFO L208 MainTranslator]: Completed translation [2020-10-16 11:58:05,213 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:58:05 WrapperNode [2020-10-16 11:58:05,213 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-16 11:58:05,215 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-16 11:58:05,215 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-16 11:58:05,215 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-16 11:58:05,225 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:58:05" (1/1) ... [2020-10-16 11:58:05,275 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:58:05" (1/1) ... [2020-10-16 11:58:05,317 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-16 11:58:05,320 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-16 11:58:05,321 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-16 11:58:05,321 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-16 11:58:05,334 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:58:05" (1/1) ... [2020-10-16 11:58:05,335 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:58:05" (1/1) ... [2020-10-16 11:58:05,351 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:58:05" (1/1) ... [2020-10-16 11:58:05,351 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:58:05" (1/1) ... [2020-10-16 11:58:05,372 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:58:05" (1/1) ... [2020-10-16 11:58:05,376 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:58:05" (1/1) ... [2020-10-16 11:58:05,382 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:58:05" (1/1) ... [2020-10-16 11:58:05,396 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-16 11:58:05,397 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-16 11:58:05,397 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-16 11:58:05,397 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-16 11:58:05,400 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:58:05" (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 11:58:05,470 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-16 11:58:05,470 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-10-16 11:58:05,471 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-16 11:58:05,471 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-16 11:58:05,472 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-10-16 11:58:05,473 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-10-16 11:58:05,473 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-10-16 11:58:05,473 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-10-16 11:58:05,474 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-10-16 11:58:05,474 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-16 11:58:05,476 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-16 11:58:05,479 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 11:58:07,420 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-16 11:58:07,420 INFO L298 CfgBuilder]: Removed 10 assume(true) statements. [2020-10-16 11:58:07,422 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 11:58:07 BoogieIcfgContainer [2020-10-16 11:58:07,423 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-16 11:58:07,424 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-16 11:58:07,424 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-16 11:58:07,428 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-16 11:58:07,428 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.10 11:58:04" (1/3) ... [2020-10-16 11:58:07,429 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@526adf4c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 11:58:07, skipping insertion in model container [2020-10-16 11:58:07,429 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:58:05" (2/3) ... [2020-10-16 11:58:07,430 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@526adf4c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 11:58:07, skipping insertion in model container [2020-10-16 11:58:07,430 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 11:58:07" (3/3) ... [2020-10-16 11:58:07,432 INFO L111 eAbstractionObserver]: Analyzing ICFG mix009_pso.oepc.i [2020-10-16 11:58:07,444 WARN L153 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-10-16 11:58:07,444 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-16 11:58:07,452 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2020-10-16 11:58:07,453 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-10-16 11:58:07,482 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:58:07,483 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:58:07,483 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:58:07,483 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:58:07,483 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:58:07,484 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:58:07,484 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:58:07,484 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:58:07,484 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:58:07,485 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:58:07,485 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:58:07,485 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:58:07,485 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:58:07,485 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:58:07,485 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:58:07,486 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:58:07,486 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:58:07,487 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:58:07,487 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:58:07,487 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:58:07,487 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:58:07,487 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~nondet8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:58:07,488 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~nondet9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:58:07,488 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:58:07,488 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:58:07,488 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:58:07,488 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:58:07,489 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite25| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:58:07,489 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite24| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:58:07,489 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite27| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:58:07,489 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:58:07,489 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:58:07,489 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite28| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:58:07,490 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:58:07,490 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:58:07,490 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:58:07,490 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:58:07,490 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:58:07,491 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:58:07,491 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:58:07,491 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:58:07,491 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:58:07,491 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:58:07,491 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:58:07,492 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:58:07,492 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:58:07,492 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~nondet8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:58:07,492 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~nondet9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:58:07,492 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:58:07,492 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite23| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:58:07,493 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:58:07,493 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite25| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:58:07,493 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite24| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:58:07,493 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite27| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:58:07,493 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite26| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:58:07,494 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite29| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:58:07,494 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite28| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:58:07,494 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:58:07,494 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:58:07,496 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:58:07,496 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:58:07,497 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:58:07,497 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:58:07,497 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:58:07,497 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:58:07,497 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:58:07,498 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:58:07,498 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:58:07,502 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:58:07,502 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:58:07,503 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:58:07,503 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:58:07,503 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:58:07,503 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:58:07,503 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:58:07,504 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:58:07,504 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:58:07,504 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:58:07,504 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:58:07,504 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:58:07,509 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite29| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:58:07,509 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite23| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:58:07,509 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite24| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:58:07,510 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:58:07,510 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:58:07,510 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite27| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:58:07,510 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite28| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:58:07,510 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite25| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:58:07,511 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite26| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:58:07,511 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:58:07,511 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:58:07,511 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:58:07,511 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:58:07,512 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:58:07,512 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:58:07,512 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:58:07,512 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:58:07,512 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:58:07,513 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~nondet9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:58:07,513 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:58:07,513 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:58:07,513 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~nondet8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:58:07,513 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:58:07,514 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:58:07,514 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:58:07,514 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:58:07,514 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:58:07,514 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:58:07,515 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:58:07,515 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:58:07,515 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:58:07,515 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:58:07,516 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:58:07,519 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2020-10-16 11:58:07,534 INFO L253 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2020-10-16 11:58:07,555 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-16 11:58:07,555 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-16 11:58:07,556 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-16 11:58:07,556 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-16 11:58:07,556 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-16 11:58:07,556 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-16 11:58:07,556 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-16 11:58:07,556 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-16 11:58:07,570 INFO L137 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2020-10-16 11:58:07,571 INFO L144 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 87 places, 82 transitions, 174 flow [2020-10-16 11:58:07,574 INFO L111 LiptonReduction]: Starting Lipton reduction on Petri net that has 87 places, 82 transitions, 174 flow [2020-10-16 11:58:07,576 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 87 places, 82 transitions, 174 flow [2020-10-16 11:58:07,619 INFO L129 PetriNetUnfolder]: 2/80 cut-off events. [2020-10-16 11:58:07,619 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-10-16 11:58:07,624 INFO L80 FinitePrefix]: Finished finitePrefix Result has 87 conditions, 80 events. 2/80 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 53 event pairs, 0 based on Foata normal form. 0/76 useless extension candidates. Maximal degree in co-relation 48. Up to 2 conditions per place. [2020-10-16 11:58:07,627 INFO L117 LiptonReduction]: Number of co-enabled transitions 1104 [2020-10-16 11:58:08,161 WARN L193 SmtUtils]: Spent 286.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 58 [2020-10-16 11:58:09,792 WARN L193 SmtUtils]: Spent 242.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 87 [2020-10-16 11:58:09,918 WARN L193 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 85 [2020-10-16 11:58:09,925 INFO L132 LiptonReduction]: Checked pairs total: 3371 [2020-10-16 11:58:09,925 INFO L134 LiptonReduction]: Total number of compositions: 67 [2020-10-16 11:58:09,932 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 30 places, 24 transitions, 58 flow [2020-10-16 11:58:09,955 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 310 states. [2020-10-16 11:58:09,958 INFO L276 IsEmpty]: Start isEmpty. Operand 310 states. [2020-10-16 11:58:09,964 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2020-10-16 11:58:09,964 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 11:58:09,965 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1] [2020-10-16 11:58:09,965 INFO L429 AbstractCegarLoop]: === Iteration 1 === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 11:58:09,971 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 11:58:09,972 INFO L82 PathProgramCache]: Analyzing trace with hash 915355, now seen corresponding path program 1 times [2020-10-16 11:58:09,982 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 11:58:09,983 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [409174529] [2020-10-16 11:58:09,983 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 11:58:10,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 11:58:10,205 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 11:58:10,206 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [409174529] [2020-10-16 11:58:10,207 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 11:58:10,207 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-10-16 11:58:10,208 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [931645020] [2020-10-16 11:58:10,213 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-16 11:58:10,213 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 11:58:10,228 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-16 11:58:10,229 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-16 11:58:10,231 INFO L87 Difference]: Start difference. First operand 310 states. Second operand 3 states. [2020-10-16 11:58:10,313 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 11:58:10,314 INFO L93 Difference]: Finished difference Result 266 states and 660 transitions. [2020-10-16 11:58:10,314 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-16 11:58:10,316 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 3 [2020-10-16 11:58:10,316 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 11:58:10,329 INFO L225 Difference]: With dead ends: 266 [2020-10-16 11:58:10,330 INFO L226 Difference]: Without dead ends: 194 [2020-10-16 11:58:10,331 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 11:58:10,352 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 194 states. [2020-10-16 11:58:10,401 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 194 to 194. [2020-10-16 11:58:10,403 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 194 states. [2020-10-16 11:58:10,410 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 194 states to 194 states and 468 transitions. [2020-10-16 11:58:10,415 INFO L78 Accepts]: Start accepts. Automaton has 194 states and 468 transitions. Word has length 3 [2020-10-16 11:58:10,415 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 11:58:10,416 INFO L481 AbstractCegarLoop]: Abstraction has 194 states and 468 transitions. [2020-10-16 11:58:10,416 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-16 11:58:10,416 INFO L276 IsEmpty]: Start isEmpty. Operand 194 states and 468 transitions. [2020-10-16 11:58:10,417 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-10-16 11:58:10,417 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 11:58:10,417 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 11:58:10,417 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-16 11:58:10,418 INFO L429 AbstractCegarLoop]: === Iteration 2 === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 11:58:10,418 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 11:58:10,418 INFO L82 PathProgramCache]: Analyzing trace with hash -834216424, now seen corresponding path program 1 times [2020-10-16 11:58:10,419 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 11:58:10,419 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [60385924] [2020-10-16 11:58:10,419 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 11:58:10,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 11:58:10,606 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 11:58:10,607 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [60385924] [2020-10-16 11:58:10,607 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 11:58:10,608 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-16 11:58:10,608 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1299774807] [2020-10-16 11:58:10,610 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-16 11:58:10,610 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 11:58:10,611 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-16 11:58:10,611 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-16 11:58:10,611 INFO L87 Difference]: Start difference. First operand 194 states and 468 transitions. Second operand 4 states. [2020-10-16 11:58:10,665 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 11:58:10,665 INFO L93 Difference]: Finished difference Result 206 states and 472 transitions. [2020-10-16 11:58:10,667 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-16 11:58:10,667 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 8 [2020-10-16 11:58:10,667 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 11:58:10,671 INFO L225 Difference]: With dead ends: 206 [2020-10-16 11:58:10,672 INFO L226 Difference]: Without dead ends: 170 [2020-10-16 11:58:10,673 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-16 11:58:10,677 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 170 states. [2020-10-16 11:58:10,703 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 170 to 170. [2020-10-16 11:58:10,703 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 170 states. [2020-10-16 11:58:10,706 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 170 states to 170 states and 400 transitions. [2020-10-16 11:58:10,706 INFO L78 Accepts]: Start accepts. Automaton has 170 states and 400 transitions. Word has length 8 [2020-10-16 11:58:10,707 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 11:58:10,709 INFO L481 AbstractCegarLoop]: Abstraction has 170 states and 400 transitions. [2020-10-16 11:58:10,709 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-16 11:58:10,710 INFO L276 IsEmpty]: Start isEmpty. Operand 170 states and 400 transitions. [2020-10-16 11:58:10,711 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-10-16 11:58:10,711 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 11:58:10,711 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 11:58:10,711 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-16 11:58:10,712 INFO L429 AbstractCegarLoop]: === Iteration 3 === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 11:58:10,712 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 11:58:10,713 INFO L82 PathProgramCache]: Analyzing trace with hash -1266924648, now seen corresponding path program 1 times [2020-10-16 11:58:10,713 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 11:58:10,713 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1992382930] [2020-10-16 11:58:10,714 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 11:58:10,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 11:58:10,928 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 11:58:10,929 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1992382930] [2020-10-16 11:58:10,929 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 11:58:10,929 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-16 11:58:10,930 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1405474277] [2020-10-16 11:58:10,930 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-16 11:58:10,930 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 11:58:10,931 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-16 11:58:10,931 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-16 11:58:10,931 INFO L87 Difference]: Start difference. First operand 170 states and 400 transitions. Second operand 6 states. [2020-10-16 11:58:11,140 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 11:58:11,140 INFO L93 Difference]: Finished difference Result 188 states and 426 transitions. [2020-10-16 11:58:11,149 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-16 11:58:11,150 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 10 [2020-10-16 11:58:11,150 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 11:58:11,152 INFO L225 Difference]: With dead ends: 188 [2020-10-16 11:58:11,153 INFO L226 Difference]: Without dead ends: 160 [2020-10-16 11:58:11,153 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2020-10-16 11:58:11,155 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 160 states. [2020-10-16 11:58:11,164 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 160 to 154. [2020-10-16 11:58:11,164 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 154 states. [2020-10-16 11:58:11,165 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 154 states to 154 states and 356 transitions. [2020-10-16 11:58:11,165 INFO L78 Accepts]: Start accepts. Automaton has 154 states and 356 transitions. Word has length 10 [2020-10-16 11:58:11,165 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 11:58:11,166 INFO L481 AbstractCegarLoop]: Abstraction has 154 states and 356 transitions. [2020-10-16 11:58:11,166 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-16 11:58:11,166 INFO L276 IsEmpty]: Start isEmpty. Operand 154 states and 356 transitions. [2020-10-16 11:58:11,167 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-10-16 11:58:11,167 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 11:58:11,167 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 11:58:11,168 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-16 11:58:11,168 INFO L429 AbstractCegarLoop]: === Iteration 4 === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 11:58:11,168 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 11:58:11,168 INFO L82 PathProgramCache]: Analyzing trace with hash 1399458537, now seen corresponding path program 1 times [2020-10-16 11:58:11,168 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 11:58:11,169 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1911333182] [2020-10-16 11:58:11,169 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 11:58:11,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 11:58:11,288 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 11:58:11,288 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1911333182] [2020-10-16 11:58:11,289 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 11:58:11,289 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-16 11:58:11,290 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1599980514] [2020-10-16 11:58:11,290 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-16 11:58:11,290 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 11:58:11,290 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-16 11:58:11,291 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-16 11:58:11,291 INFO L87 Difference]: Start difference. First operand 154 states and 356 transitions. Second operand 4 states. [2020-10-16 11:58:11,329 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 11:58:11,329 INFO L93 Difference]: Finished difference Result 122 states and 237 transitions. [2020-10-16 11:58:11,330 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-16 11:58:11,330 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 12 [2020-10-16 11:58:11,330 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 11:58:11,331 INFO L225 Difference]: With dead ends: 122 [2020-10-16 11:58:11,331 INFO L226 Difference]: Without dead ends: 86 [2020-10-16 11:58:11,331 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 11:58:11,332 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86 states. [2020-10-16 11:58:11,337 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86 to 86. [2020-10-16 11:58:11,340 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 86 states. [2020-10-16 11:58:11,340 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 86 states and 152 transitions. [2020-10-16 11:58:11,341 INFO L78 Accepts]: Start accepts. Automaton has 86 states and 152 transitions. Word has length 12 [2020-10-16 11:58:11,341 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 11:58:11,341 INFO L481 AbstractCegarLoop]: Abstraction has 86 states and 152 transitions. [2020-10-16 11:58:11,341 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-16 11:58:11,342 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 152 transitions. [2020-10-16 11:58:11,345 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-10-16 11:58:11,345 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 11:58:11,345 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 11:58:11,346 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-16 11:58:11,346 INFO L429 AbstractCegarLoop]: === Iteration 5 === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 11:58:11,346 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 11:58:11,346 INFO L82 PathProgramCache]: Analyzing trace with hash -237421939, now seen corresponding path program 1 times [2020-10-16 11:58:11,346 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 11:58:11,347 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1462107419] [2020-10-16 11:58:11,347 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 11:58:11,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 11:58:11,520 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 11:58:11,520 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1462107419] [2020-10-16 11:58:11,520 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 11:58:11,521 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-16 11:58:11,521 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [697922511] [2020-10-16 11:58:11,521 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-16 11:58:11,522 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 11:58:11,522 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-16 11:58:11,522 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-16 11:58:11,522 INFO L87 Difference]: Start difference. First operand 86 states and 152 transitions. Second operand 5 states. [2020-10-16 11:58:11,557 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 11:58:11,558 INFO L93 Difference]: Finished difference Result 65 states and 108 transitions. [2020-10-16 11:58:11,558 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-16 11:58:11,559 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 15 [2020-10-16 11:58:11,559 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 11:58:11,559 INFO L225 Difference]: With dead ends: 65 [2020-10-16 11:58:11,560 INFO L226 Difference]: Without dead ends: 54 [2020-10-16 11:58:11,560 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 11:58:11,560 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2020-10-16 11:58:11,563 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 54. [2020-10-16 11:58:11,563 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 54 states. [2020-10-16 11:58:11,564 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 88 transitions. [2020-10-16 11:58:11,564 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 88 transitions. Word has length 15 [2020-10-16 11:58:11,564 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 11:58:11,564 INFO L481 AbstractCegarLoop]: Abstraction has 54 states and 88 transitions. [2020-10-16 11:58:11,564 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-16 11:58:11,565 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 88 transitions. [2020-10-16 11:58:11,565 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-10-16 11:58:11,565 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 11:58:11,565 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 11:58:11,566 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-16 11:58:11,566 INFO L429 AbstractCegarLoop]: === Iteration 6 === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 11:58:11,566 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 11:58:11,566 INFO L82 PathProgramCache]: Analyzing trace with hash 1778638828, now seen corresponding path program 1 times [2020-10-16 11:58:11,567 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 11:58:11,567 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [90840366] [2020-10-16 11:58:11,567 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 11:58:11,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 11:58:11,663 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 11:58:11,664 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [90840366] [2020-10-16 11:58:11,664 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 11:58:11,664 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-16 11:58:11,665 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1075666882] [2020-10-16 11:58:11,665 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-16 11:58:11,665 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 11:58:11,665 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-16 11:58:11,665 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-16 11:58:11,666 INFO L87 Difference]: Start difference. First operand 54 states and 88 transitions. Second operand 5 states. [2020-10-16 11:58:11,700 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 11:58:11,700 INFO L93 Difference]: Finished difference Result 72 states and 113 transitions. [2020-10-16 11:58:11,700 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-16 11:58:11,701 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 18 [2020-10-16 11:58:11,701 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 11:58:11,702 INFO L225 Difference]: With dead ends: 72 [2020-10-16 11:58:11,702 INFO L226 Difference]: Without dead ends: 39 [2020-10-16 11:58:11,702 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-10-16 11:58:11,703 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2020-10-16 11:58:11,704 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 39. [2020-10-16 11:58:11,704 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39 states. [2020-10-16 11:58:11,705 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 58 transitions. [2020-10-16 11:58:11,705 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 58 transitions. Word has length 18 [2020-10-16 11:58:11,705 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 11:58:11,705 INFO L481 AbstractCegarLoop]: Abstraction has 39 states and 58 transitions. [2020-10-16 11:58:11,705 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-16 11:58:11,705 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 58 transitions. [2020-10-16 11:58:11,706 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-10-16 11:58:11,706 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 11:58:11,706 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 11:58:11,706 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-16 11:58:11,707 INFO L429 AbstractCegarLoop]: === Iteration 7 === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 11:58:11,707 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 11:58:11,707 INFO L82 PathProgramCache]: Analyzing trace with hash 1069306500, now seen corresponding path program 2 times [2020-10-16 11:58:11,707 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 11:58:11,708 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [317996829] [2020-10-16 11:58:11,708 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 11:58:11,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-16 11:58:11,765 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-16 11:58:11,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-16 11:58:11,869 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-16 11:58:11,913 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-16 11:58:11,914 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-16 11:58:11,914 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-16 11:58:11,935 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 11:58:11,935 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-16 11:58:11,937 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 11:58:11,937 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-16 11:58:11,938 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 11:58:11,938 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-16 11:58:11,938 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 11:58:11,938 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-16 11:58:11,938 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 11:58:11,939 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-16 11:58:11,939 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 11:58:11,939 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-16 11:58:11,939 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 11:58:11,939 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-16 11:58:11,939 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 11:58:11,940 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-16 11:58:11,940 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 11:58:11,940 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-16 11:58:11,940 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 11:58:11,940 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-16 11:58:11,941 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 11:58:11,941 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-16 11:58:11,941 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 11:58:11,941 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-16 11:58:11,942 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 11:58:11,942 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-16 11:58:11,942 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 11:58:11,942 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-16 11:58:11,942 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 11:58:11,942 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-16 11:58:11,943 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 11:58:11,943 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-16 11:58:11,943 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 11:58:11,943 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-16 11:58:11,944 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 11:58:11,944 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-16 11:58:11,944 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 11:58:11,944 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-16 11:58:11,944 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 11:58:11,944 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-16 11:58:11,945 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 11:58:11,945 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-16 11:58:11,945 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 11:58:11,945 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-16 11:58:11,945 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 11:58:11,945 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-16 11:58:11,946 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 11:58:11,946 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-16 11:58:11,946 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 11:58:11,947 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-16 11:58:11,947 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 11:58:11,947 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-16 11:58:11,947 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 11:58:11,947 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-16 11:58:11,947 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 11:58:11,948 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-16 11:58:12,010 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.10 11:58:12 BasicIcfg [2020-10-16 11:58:12,011 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-16 11:58:12,014 INFO L168 Benchmark]: Toolchain (without parser) took 7695.63 ms. Allocated memory was 138.9 MB in the beginning and 297.8 MB in the end (delta: 158.9 MB). Free memory was 100.1 MB in the beginning and 156.7 MB in the end (delta: -56.6 MB). Peak memory consumption was 102.3 MB. Max. memory is 7.1 GB. [2020-10-16 11:58:12,016 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 138.9 MB. Free memory was 120.4 MB in the beginning and 120.2 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. [2020-10-16 11:58:12,017 INFO L168 Benchmark]: CACSL2BoogieTranslator took 895.66 ms. Allocated memory was 138.9 MB in the beginning and 202.4 MB in the end (delta: 63.4 MB). Free memory was 99.9 MB in the beginning and 157.0 MB in the end (delta: -57.1 MB). Peak memory consumption was 26.5 MB. Max. memory is 7.1 GB. [2020-10-16 11:58:12,018 INFO L168 Benchmark]: Boogie Procedure Inliner took 105.47 ms. Allocated memory is still 202.4 MB. Free memory was 157.0 MB in the beginning and 154.3 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 7.1 GB. [2020-10-16 11:58:12,019 INFO L168 Benchmark]: Boogie Preprocessor took 75.91 ms. Allocated memory is still 202.4 MB. Free memory was 154.3 MB in the beginning and 152.2 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. [2020-10-16 11:58:12,020 INFO L168 Benchmark]: RCFGBuilder took 2026.31 ms. Allocated memory was 202.4 MB in the beginning and 250.1 MB in the end (delta: 47.7 MB). Free memory was 152.2 MB in the beginning and 207.2 MB in the end (delta: -54.9 MB). Peak memory consumption was 105.3 MB. Max. memory is 7.1 GB. [2020-10-16 11:58:12,025 INFO L168 Benchmark]: TraceAbstraction took 4586.60 ms. Allocated memory was 250.1 MB in the beginning and 297.8 MB in the end (delta: 47.7 MB). Free memory was 205.3 MB in the beginning and 156.7 MB in the end (delta: 48.6 MB). Peak memory consumption was 96.3 MB. Max. memory is 7.1 GB. [2020-10-16 11:58:12,034 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 138.9 MB. Free memory was 120.4 MB in the beginning and 120.2 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 895.66 ms. Allocated memory was 138.9 MB in the beginning and 202.4 MB in the end (delta: 63.4 MB). Free memory was 99.9 MB in the beginning and 157.0 MB in the end (delta: -57.1 MB). Peak memory consumption was 26.5 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 105.47 ms. Allocated memory is still 202.4 MB. Free memory was 157.0 MB in the beginning and 154.3 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 75.91 ms. Allocated memory is still 202.4 MB. Free memory was 154.3 MB in the beginning and 152.2 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 2026.31 ms. Allocated memory was 202.4 MB in the beginning and 250.1 MB in the end (delta: 47.7 MB). Free memory was 152.2 MB in the beginning and 207.2 MB in the end (delta: -54.9 MB). Peak memory consumption was 105.3 MB. Max. memory is 7.1 GB. * TraceAbstraction took 4586.60 ms. Allocated memory was 250.1 MB in the beginning and 297.8 MB in the end (delta: 47.7 MB). Free memory was 205.3 MB in the beginning and 156.7 MB in the end (delta: 48.6 MB). Peak memory consumption was 96.3 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 571 VarBasedMoverChecksPositive, 27 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 0 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 73 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 2.3s, 87 PlacesBefore, 30 PlacesAfterwards, 82 TransitionsBefore, 24 TransitionsAfterwards, 1104 CoEnabledTransitionPairs, 6 FixpointIterations, 32 TrivialSequentialCompositions, 29 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 5 ConcurrentYvCompositions, 1 ChoiceCompositions, 67 TotalNumberOfCompositions, 3371 MoverChecksTotal - CounterExampleResult [Line: 7]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L697] 0 int __unbuffered_cnt = 0; [L699] 0 int __unbuffered_p0_EAX = 0; [L701] 0 int __unbuffered_p0_EBX = 0; [L703] 0 int __unbuffered_p1_EAX = 0; [L705] 0 int __unbuffered_p1_EBX = 0; [L706] 0 _Bool main$tmp_guard0; [L707] 0 _Bool main$tmp_guard1; [L709] 0 int x = 0; [L711] 0 int y = 0; [L713] 0 int z = 0; [L714] 0 _Bool z$flush_delayed; [L715] 0 int z$mem_tmp; [L716] 0 _Bool z$r_buff0_thd0; [L717] 0 _Bool z$r_buff0_thd1; [L718] 0 _Bool z$r_buff0_thd2; [L719] 0 _Bool z$r_buff1_thd0; [L720] 0 _Bool z$r_buff1_thd1; [L721] 0 _Bool z$r_buff1_thd2; [L722] 0 _Bool z$read_delayed; [L723] 0 int *z$read_delayed_var; [L724] 0 int z$w_buff0; [L725] 0 _Bool z$w_buff0_used; [L726] 0 int z$w_buff1; [L727] 0 _Bool z$w_buff1_used; [L728] 0 _Bool weak$$choice0; [L729] 0 _Bool weak$$choice2; [L811] 0 pthread_t t245; [L812] FCALL, FORK 0 pthread_create(&t245, ((void *)0), P0, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p0_EBX=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=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_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=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] [L813] 0 pthread_t t246; [L733] 1 z$w_buff1 = z$w_buff0 [L734] 1 z$w_buff0 = 1 [L735] 1 z$w_buff1_used = z$w_buff0_used [L736] 1 z$w_buff0_used = (_Bool)1 [L7] COND FALSE 1 !(!expression) [L738] 1 z$r_buff1_thd0 = z$r_buff0_thd0 [L739] 1 z$r_buff1_thd1 = z$r_buff0_thd1 [L740] 1 z$r_buff1_thd2 = z$r_buff0_thd2 [L741] 1 z$r_buff0_thd1 = (_Bool)1 [L744] 1 x = 1 VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p0_EBX=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, main$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=1, z$r_buff0_thd2=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=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] [L747] 1 __unbuffered_p0_EAX = x VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=1, __unbuffered_p0_EBX=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, 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=1, z$r_buff0_thd2=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=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] [L814] FCALL, FORK 0 pthread_create(&t246, ((void *)0), P1, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=1, __unbuffered_p0_EBX=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, arg={0:0}, 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=1, z$r_buff0_thd2=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=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] [L750] 1 __unbuffered_p0_EBX = y VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=1, __unbuffered_p0_EBX=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, arg={0:0}, 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=1, z$r_buff0_thd2=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=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] [L767] 2 y = 1 VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=1, __unbuffered_p0_EBX=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, arg={0:0}, arg={0:0}, 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=1, z$r_buff0_thd2=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=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] [L770] 2 __unbuffered_p1_EAX = y VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=1, __unbuffered_p0_EBX=0, __unbuffered_p1_EAX=1, __unbuffered_p1_EBX=0, arg={0:0}, arg={0:0}, 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=1, z$r_buff0_thd2=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=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] [L773] 2 weak$$choice0 = __VERIFIER_nondet_bool() [L774] 2 weak$$choice2 = __VERIFIER_nondet_bool() [L775] 2 z$flush_delayed = weak$$choice2 [L776] 2 z$mem_tmp = z [L777] EXPR 2 !z$w_buff0_used || !z$r_buff0_thd2 && !z$w_buff1_used || !z$r_buff0_thd2 && !z$r_buff1_thd2 ? z : (z$w_buff0_used && z$r_buff0_thd2 ? z$w_buff0 : z$w_buff1) [L777] 2 z = !z$w_buff0_used || !z$r_buff0_thd2 && !z$w_buff1_used || !z$r_buff0_thd2 && !z$r_buff1_thd2 ? z : (z$w_buff0_used && z$r_buff0_thd2 ? z$w_buff0 : z$w_buff1) [L778] EXPR 2 weak$$choice2 ? z$w_buff0 : (!z$w_buff0_used || !z$r_buff0_thd2 && !z$w_buff1_used || !z$r_buff0_thd2 && !z$r_buff1_thd2 ? z$w_buff0 : (z$w_buff0_used && z$r_buff0_thd2 ? z$w_buff0 : z$w_buff0)) [L778] EXPR 2 !z$w_buff0_used || !z$r_buff0_thd2 && !z$w_buff1_used || !z$r_buff0_thd2 && !z$r_buff1_thd2 ? z$w_buff0 : (z$w_buff0_used && z$r_buff0_thd2 ? z$w_buff0 : z$w_buff0) [L778] EXPR 2 z$w_buff0_used && z$r_buff0_thd2 ? z$w_buff0 : z$w_buff0 [L778] EXPR 2 !z$w_buff0_used || !z$r_buff0_thd2 && !z$w_buff1_used || !z$r_buff0_thd2 && !z$r_buff1_thd2 ? z$w_buff0 : (z$w_buff0_used && z$r_buff0_thd2 ? z$w_buff0 : z$w_buff0) [L778] EXPR 2 weak$$choice2 ? z$w_buff0 : (!z$w_buff0_used || !z$r_buff0_thd2 && !z$w_buff1_used || !z$r_buff0_thd2 && !z$r_buff1_thd2 ? z$w_buff0 : (z$w_buff0_used && z$r_buff0_thd2 ? z$w_buff0 : z$w_buff0)) [L778] 2 z$w_buff0 = weak$$choice2 ? z$w_buff0 : (!z$w_buff0_used || !z$r_buff0_thd2 && !z$w_buff1_used || !z$r_buff0_thd2 && !z$r_buff1_thd2 ? z$w_buff0 : (z$w_buff0_used && z$r_buff0_thd2 ? z$w_buff0 : z$w_buff0)) [L779] EXPR 2 weak$$choice2 ? z$w_buff1 : (!z$w_buff0_used || !z$r_buff0_thd2 && !z$w_buff1_used || !z$r_buff0_thd2 && !z$r_buff1_thd2 ? z$w_buff1 : (z$w_buff0_used && z$r_buff0_thd2 ? z$w_buff1 : z$w_buff1)) [L779] 2 z$w_buff1 = weak$$choice2 ? z$w_buff1 : (!z$w_buff0_used || !z$r_buff0_thd2 && !z$w_buff1_used || !z$r_buff0_thd2 && !z$r_buff1_thd2 ? z$w_buff1 : (z$w_buff0_used && z$r_buff0_thd2 ? z$w_buff1 : z$w_buff1)) [L780] EXPR 2 weak$$choice2 ? z$w_buff0_used : (!z$w_buff0_used || !z$r_buff0_thd2 && !z$w_buff1_used || !z$r_buff0_thd2 && !z$r_buff1_thd2 ? z$w_buff0_used : (z$w_buff0_used && z$r_buff0_thd2 ? (_Bool)0 : z$w_buff0_used)) [L780] EXPR 2 !z$w_buff0_used || !z$r_buff0_thd2 && !z$w_buff1_used || !z$r_buff0_thd2 && !z$r_buff1_thd2 ? z$w_buff0_used : (z$w_buff0_used && z$r_buff0_thd2 ? (_Bool)0 : z$w_buff0_used) [L780] EXPR 2 weak$$choice2 ? z$w_buff0_used : (!z$w_buff0_used || !z$r_buff0_thd2 && !z$w_buff1_used || !z$r_buff0_thd2 && !z$r_buff1_thd2 ? z$w_buff0_used : (z$w_buff0_used && z$r_buff0_thd2 ? (_Bool)0 : z$w_buff0_used)) [L780] 2 z$w_buff0_used = weak$$choice2 ? z$w_buff0_used : (!z$w_buff0_used || !z$r_buff0_thd2 && !z$w_buff1_used || !z$r_buff0_thd2 && !z$r_buff1_thd2 ? z$w_buff0_used : (z$w_buff0_used && z$r_buff0_thd2 ? (_Bool)0 : z$w_buff0_used)) [L781] EXPR 2 weak$$choice2 ? z$w_buff1_used : (!z$w_buff0_used || !z$r_buff0_thd2 && !z$w_buff1_used || !z$r_buff0_thd2 && !z$r_buff1_thd2 ? z$w_buff1_used : (z$w_buff0_used && z$r_buff0_thd2 ? (_Bool)0 : (_Bool)0)) [L781] 2 z$w_buff1_used = weak$$choice2 ? z$w_buff1_used : (!z$w_buff0_used || !z$r_buff0_thd2 && !z$w_buff1_used || !z$r_buff0_thd2 && !z$r_buff1_thd2 ? z$w_buff1_used : (z$w_buff0_used && z$r_buff0_thd2 ? (_Bool)0 : (_Bool)0)) [L782] EXPR 2 weak$$choice2 ? z$r_buff0_thd2 : (!z$w_buff0_used || !z$r_buff0_thd2 && !z$w_buff1_used || !z$r_buff0_thd2 && !z$r_buff1_thd2 ? z$r_buff0_thd2 : (z$w_buff0_used && z$r_buff0_thd2 ? (_Bool)0 : z$r_buff0_thd2)) [L782] 2 z$r_buff0_thd2 = weak$$choice2 ? z$r_buff0_thd2 : (!z$w_buff0_used || !z$r_buff0_thd2 && !z$w_buff1_used || !z$r_buff0_thd2 && !z$r_buff1_thd2 ? z$r_buff0_thd2 : (z$w_buff0_used && z$r_buff0_thd2 ? (_Bool)0 : z$r_buff0_thd2)) [L783] EXPR 2 weak$$choice2 ? z$r_buff1_thd2 : (!z$w_buff0_used || !z$r_buff0_thd2 && !z$w_buff1_used || !z$r_buff0_thd2 && !z$r_buff1_thd2 ? z$r_buff1_thd2 : (z$w_buff0_used && z$r_buff0_thd2 ? (_Bool)0 : (_Bool)0)) [L783] 2 z$r_buff1_thd2 = weak$$choice2 ? z$r_buff1_thd2 : (!z$w_buff0_used || !z$r_buff0_thd2 && !z$w_buff1_used || !z$r_buff0_thd2 && !z$r_buff1_thd2 ? z$r_buff1_thd2 : (z$w_buff0_used && z$r_buff0_thd2 ? (_Bool)0 : (_Bool)0)) [L784] 2 __unbuffered_p1_EBX = z [L785] EXPR 2 z$flush_delayed ? z$mem_tmp : z [L785] 2 z = z$flush_delayed ? z$mem_tmp : z [L786] 2 z$flush_delayed = (_Bool)0 VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=1, __unbuffered_p0_EBX=0, __unbuffered_p1_EAX=1, __unbuffered_p1_EBX=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=5, 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=1, z$r_buff0_thd2=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=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] [L789] EXPR 2 z$w_buff0_used && z$r_buff0_thd2 ? z$w_buff0 : (z$w_buff1_used && z$r_buff1_thd2 ? z$w_buff1 : z) [L789] 2 z = z$w_buff0_used && z$r_buff0_thd2 ? z$w_buff0 : (z$w_buff1_used && z$r_buff1_thd2 ? z$w_buff1 : z) [L790] EXPR 2 z$w_buff0_used && z$r_buff0_thd2 ? (_Bool)0 : z$w_buff0_used [L790] 2 z$w_buff0_used = z$w_buff0_used && z$r_buff0_thd2 ? (_Bool)0 : z$w_buff0_used [L791] EXPR 2 z$w_buff0_used && z$r_buff0_thd2 || z$w_buff1_used && z$r_buff1_thd2 ? (_Bool)0 : z$w_buff1_used [L791] 2 z$w_buff1_used = z$w_buff0_used && z$r_buff0_thd2 || z$w_buff1_used && z$r_buff1_thd2 ? (_Bool)0 : z$w_buff1_used [L792] EXPR 2 z$w_buff0_used && z$r_buff0_thd2 ? (_Bool)0 : z$r_buff0_thd2 [L792] 2 z$r_buff0_thd2 = z$w_buff0_used && z$r_buff0_thd2 ? (_Bool)0 : z$r_buff0_thd2 [L793] EXPR 2 z$w_buff0_used && z$r_buff0_thd2 || z$w_buff1_used && z$r_buff1_thd2 ? (_Bool)0 : z$r_buff1_thd2 [L793] 2 z$r_buff1_thd2 = z$w_buff0_used && z$r_buff0_thd2 || z$w_buff1_used && z$r_buff1_thd2 ? (_Bool)0 : z$r_buff1_thd2 [L796] 2 __unbuffered_cnt = __unbuffered_cnt + 1 [L798] 2 return 0; [L753] EXPR 1 z$w_buff0_used && z$r_buff0_thd1 ? z$w_buff0 : (z$w_buff1_used && z$r_buff1_thd1 ? z$w_buff1 : z) [L753] EXPR 1 z$w_buff1_used && z$r_buff1_thd1 ? z$w_buff1 : z [L753] EXPR 1 z$w_buff0_used && z$r_buff0_thd1 ? z$w_buff0 : (z$w_buff1_used && z$r_buff1_thd1 ? z$w_buff1 : z) [L753] 1 z = z$w_buff0_used && z$r_buff0_thd1 ? z$w_buff0 : (z$w_buff1_used && z$r_buff1_thd1 ? z$w_buff1 : z) [L754] EXPR 1 z$w_buff0_used && z$r_buff0_thd1 ? (_Bool)0 : z$w_buff0_used [L754] 1 z$w_buff0_used = z$w_buff0_used && z$r_buff0_thd1 ? (_Bool)0 : z$w_buff0_used [L755] EXPR 1 z$w_buff0_used && z$r_buff0_thd1 || z$w_buff1_used && z$r_buff1_thd1 ? (_Bool)0 : z$w_buff1_used [L755] 1 z$w_buff1_used = z$w_buff0_used && z$r_buff0_thd1 || z$w_buff1_used && z$r_buff1_thd1 ? (_Bool)0 : z$w_buff1_used [L756] EXPR 1 z$w_buff0_used && z$r_buff0_thd1 ? (_Bool)0 : z$r_buff0_thd1 [L756] 1 z$r_buff0_thd1 = z$w_buff0_used && z$r_buff0_thd1 ? (_Bool)0 : z$r_buff0_thd1 [L757] EXPR 1 z$w_buff0_used && z$r_buff0_thd1 || z$w_buff1_used && z$r_buff1_thd1 ? (_Bool)0 : z$r_buff1_thd1 [L757] 1 z$r_buff1_thd1 = z$w_buff0_used && z$r_buff0_thd1 || z$w_buff1_used && z$r_buff1_thd1 ? (_Bool)0 : z$r_buff1_thd1 [L760] 1 __unbuffered_cnt = __unbuffered_cnt + 1 [L762] 1 return 0; [L816] 0 main$tmp_guard0 = __unbuffered_cnt == 2 [L3] COND FALSE 0 !(!cond) [L820] EXPR 0 z$w_buff0_used && z$r_buff0_thd0 ? z$w_buff0 : (z$w_buff1_used && z$r_buff1_thd0 ? z$w_buff1 : z) [L820] 0 z = z$w_buff0_used && z$r_buff0_thd0 ? z$w_buff0 : (z$w_buff1_used && z$r_buff1_thd0 ? z$w_buff1 : z) [L821] EXPR 0 z$w_buff0_used && z$r_buff0_thd0 ? (_Bool)0 : z$w_buff0_used [L821] 0 z$w_buff0_used = z$w_buff0_used && z$r_buff0_thd0 ? (_Bool)0 : z$w_buff0_used [L822] EXPR 0 z$w_buff0_used && z$r_buff0_thd0 || z$w_buff1_used && z$r_buff1_thd0 ? (_Bool)0 : z$w_buff1_used [L822] 0 z$w_buff1_used = z$w_buff0_used && z$r_buff0_thd0 || z$w_buff1_used && z$r_buff1_thd0 ? (_Bool)0 : z$w_buff1_used [L823] EXPR 0 z$w_buff0_used && z$r_buff0_thd0 ? (_Bool)0 : z$r_buff0_thd0 [L823] 0 z$r_buff0_thd0 = z$w_buff0_used && z$r_buff0_thd0 ? (_Bool)0 : z$r_buff0_thd0 [L824] EXPR 0 z$w_buff0_used && z$r_buff0_thd0 || z$w_buff1_used && z$r_buff1_thd0 ? (_Bool)0 : z$r_buff1_thd0 [L824] 0 z$r_buff1_thd0 = z$w_buff0_used && z$r_buff0_thd0 || z$w_buff1_used && z$r_buff1_thd0 ? (_Bool)0 : z$r_buff1_thd0 [L827] 0 main$tmp_guard1 = !(__unbuffered_p0_EAX == 1 && __unbuffered_p0_EBX == 0 && __unbuffered_p1_EAX == 1 && __unbuffered_p1_EBX == 0) [L7] COND TRUE 0 !expression [L7] 0 __VERIFIER_error() VAL [\result={0:0}, __unbuffered_cnt=2, __unbuffered_p0_EAX=1, __unbuffered_p0_EBX=0, __unbuffered_p1_EAX=1, __unbuffered_p1_EBX=0, arg={0:0}, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, weak$$choice0=5, 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=1, z$r_buff0_thd2=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=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 3 procedures, 81 locations, 2 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 4.3s, OverallIterations: 7, TraceHistogramMax: 1, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.3s, HoareTripleCheckerStatistics: 138 SDtfs, 142 SDslu, 237 SDs, 0 SdLazy, 106 SolverSat, 15 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 26 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=310occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 6 MinimizatonAttempts, 6 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 84 NumberOfCodeBlocks, 84 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 60 ConstructedInterpolants, 0 QuantifiedInterpolants, 3588 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 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...