/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-McrAutomaton-WP.epf -i ../../../trunk/examples/concurrent/pthreads/distributed_search2.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c7e336b [2020-10-06 01:23:25,916 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-06 01:23:25,920 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-06 01:23:25,957 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-06 01:23:25,958 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-06 01:23:25,966 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-06 01:23:25,968 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-06 01:23:25,972 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-06 01:23:25,974 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-06 01:23:25,977 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-06 01:23:25,978 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-06 01:23:25,979 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-06 01:23:25,980 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-06 01:23:25,982 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-06 01:23:25,985 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-06 01:23:25,987 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-06 01:23:25,988 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-06 01:23:25,989 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-06 01:23:25,991 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-06 01:23:26,000 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-06 01:23:26,002 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-06 01:23:26,003 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-06 01:23:26,004 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-06 01:23:26,005 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-06 01:23:26,018 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-06 01:23:26,018 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-06 01:23:26,022 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-06 01:23:26,023 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-06 01:23:26,024 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-06 01:23:26,024 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-06 01:23:26,025 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-06 01:23:26,031 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-06 01:23:26,031 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-06 01:23:26,032 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-06 01:23:26,033 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-06 01:23:26,033 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-06 01:23:26,035 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-06 01:23:26,036 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-06 01:23:26,036 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-06 01:23:26,037 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-06 01:23:26,037 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-06 01:23:26,038 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/mcr/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-McrAutomaton-WP.epf [2020-10-06 01:23:26,074 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-06 01:23:26,074 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-06 01:23:26,075 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-06 01:23:26,076 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-06 01:23:26,076 INFO L138 SettingsManager]: * Use SBE=true [2020-10-06 01:23:26,076 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-06 01:23:26,076 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-06 01:23:26,076 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-06 01:23:26,077 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-06 01:23:26,077 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-06 01:23:26,077 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-06 01:23:26,077 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-06 01:23:26,077 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-06 01:23:26,077 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-06 01:23:26,078 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-06 01:23:26,078 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-06 01:23:26,078 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-06 01:23:26,078 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-06 01:23:26,078 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-06 01:23:26,078 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-06 01:23:26,079 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-06 01:23:26,079 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-06 01:23:26,079 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-06 01:23:26,079 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_NestedInterpolation [2020-10-06 01:23:26,080 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-06 01:23:26,080 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-06 01:23:26,080 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-06 01:23:26,080 INFO L138 SettingsManager]: * Override the interpolant automaton setting of the refinement strategy=true [2020-10-06 01:23:26,080 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=VARIABLE_BASED_MOVER_CHECK [2020-10-06 01:23:26,080 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-06 01:23:26,081 INFO L138 SettingsManager]: * Interpolant automaton=MCR [2020-10-06 01:23:26,406 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-06 01:23:26,424 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-06 01:23:26,429 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-06 01:23:26,431 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-06 01:23:26,434 INFO L275 PluginConnector]: CDTParser initialized [2020-10-06 01:23:26,435 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/pthreads/distributed_search2.c [2020-10-06 01:23:26,516 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a2177ce56/d43acda2c4e644d99102d03f83b6c84b/FLAG444dea61a [2020-10-06 01:23:27,002 INFO L306 CDTParser]: Found 1 translation units. [2020-10-06 01:23:27,003 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/concurrent/pthreads/distributed_search2.c [2020-10-06 01:23:27,003 WARN L117 ultiparseSymbolTable]: System include pthread.h could not be resolved by CDT -- only built-in system includes are available. [2020-10-06 01:23:27,003 WARN L117 ultiparseSymbolTable]: System include stdio.h could not be resolved by CDT -- only built-in system includes are available. [2020-10-06 01:23:27,044 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a2177ce56/d43acda2c4e644d99102d03f83b6c84b/FLAG444dea61a [2020-10-06 01:23:27,359 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a2177ce56/d43acda2c4e644d99102d03f83b6c84b [2020-10-06 01:23:27,368 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-06 01:23:27,370 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-10-06 01:23:27,371 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-06 01:23:27,372 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-06 01:23:27,375 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-06 01:23:27,376 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.10 01:23:27" (1/1) ... [2020-10-06 01:23:27,379 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@38887ed5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 01:23:27, skipping insertion in model container [2020-10-06 01:23:27,379 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.10 01:23:27" (1/1) ... [2020-10-06 01:23:27,387 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-06 01:23:27,406 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-06 01:23:27,650 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-06 01:23:27,659 INFO L203 MainTranslator]: Completed pre-run [2020-10-06 01:23:27,683 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-06 01:23:27,700 INFO L208 MainTranslator]: Completed translation [2020-10-06 01:23:27,700 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 01:23:27 WrapperNode [2020-10-06 01:23:27,701 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-06 01:23:27,701 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-06 01:23:27,702 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-06 01:23:27,702 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-06 01:23:27,709 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 01:23:27" (1/1) ... [2020-10-06 01:23:27,718 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 01:23:27" (1/1) ... [2020-10-06 01:23:27,745 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-06 01:23:27,745 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-06 01:23:27,745 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-06 01:23:27,745 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-06 01:23:27,753 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 01:23:27" (1/1) ... [2020-10-06 01:23:27,754 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 01:23:27" (1/1) ... [2020-10-06 01:23:27,756 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 01:23:27" (1/1) ... [2020-10-06 01:23:27,756 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 01:23:27" (1/1) ... [2020-10-06 01:23:27,764 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 01:23:27" (1/1) ... [2020-10-06 01:23:27,769 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 01:23:27" (1/1) ... [2020-10-06 01:23:27,771 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 01:23:27" (1/1) ... [2020-10-06 01:23:27,773 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-06 01:23:27,774 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-06 01:23:27,774 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-06 01:23:27,774 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-06 01:23:27,775 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 01:23:27" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-06 01:23:27,841 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-06 01:23:27,842 INFO L130 BoogieDeclarations]: Found specification of procedure search_worker [2020-10-06 01:23:27,842 INFO L138 BoogieDeclarations]: Found implementation of procedure search_worker [2020-10-06 01:23:27,842 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-06 01:23:27,842 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-06 01:23:27,842 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-06 01:23:27,842 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-06 01:23:27,843 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-06 01:23:27,843 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-06 01:23:27,844 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-10-06 01:23:28,240 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-06 01:23:28,240 INFO L298 CfgBuilder]: Removed 7 assume(true) statements. [2020-10-06 01:23:28,243 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.10 01:23:28 BoogieIcfgContainer [2020-10-06 01:23:28,243 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-06 01:23:28,244 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-06 01:23:28,245 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-06 01:23:28,248 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-06 01:23:28,249 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.10 01:23:27" (1/3) ... [2020-10-06 01:23:28,250 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@34573e28 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.10 01:23:28, skipping insertion in model container [2020-10-06 01:23:28,250 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 01:23:27" (2/3) ... [2020-10-06 01:23:28,251 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@34573e28 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.10 01:23:28, skipping insertion in model container [2020-10-06 01:23:28,251 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.10 01:23:28" (3/3) ... [2020-10-06 01:23:28,254 INFO L109 eAbstractionObserver]: Analyzing ICFG distributed_search2.c [2020-10-06 01:23:28,276 WARN L146 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-10-06 01:23:28,276 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-06 01:23:28,297 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-06 01:23:28,298 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-10-06 01:23:28,337 WARN L313 ript$VariableManager]: TermVariabe |search_workerThread1of1ForFork0_#in~params.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:23:28,337 WARN L313 ript$VariableManager]: TermVariabe |search_workerThread1of1ForFork0_#in~params.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:23:28,337 WARN L313 ript$VariableManager]: TermVariabe search_workerThread1of1ForFork0_~params.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:23:28,338 WARN L313 ript$VariableManager]: TermVariabe search_workerThread1of1ForFork0_~params.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:23:28,338 WARN L313 ript$VariableManager]: TermVariabe search_workerThread1of1ForFork0_~params.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:23:28,339 WARN L313 ript$VariableManager]: TermVariabe search_workerThread1of1ForFork0_~params.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:23:28,339 WARN L313 ript$VariableManager]: TermVariabe search_workerThread1of1ForFork0_~bounds~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:23:28,339 WARN L313 ript$VariableManager]: TermVariabe search_workerThread1of1ForFork0_~bounds~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:23:28,340 WARN L313 ript$VariableManager]: TermVariabe search_workerThread1of1ForFork0_~bounds~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:23:28,340 WARN L313 ript$VariableManager]: TermVariabe search_workerThread1of1ForFork0_~bounds~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:23:28,340 WARN L313 ript$VariableManager]: TermVariabe |search_workerThread1of1ForFork0_#t~mem0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:23:28,341 WARN L313 ript$VariableManager]: TermVariabe |search_workerThread1of1ForFork0_#t~mem0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:23:28,341 WARN L313 ript$VariableManager]: TermVariabe search_workerThread1of1ForFork0_~lower~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:23:28,341 WARN L313 ript$VariableManager]: TermVariabe |search_workerThread1of1ForFork0_#t~mem0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:23:28,341 WARN L313 ript$VariableManager]: TermVariabe search_workerThread1of1ForFork0_~bounds~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:23:28,342 WARN L313 ript$VariableManager]: TermVariabe search_workerThread1of1ForFork0_~bounds~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:23:28,342 WARN L313 ript$VariableManager]: TermVariabe |search_workerThread1of1ForFork0_#t~mem1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:23:28,342 WARN L313 ript$VariableManager]: TermVariabe |search_workerThread1of1ForFork0_#t~mem1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:23:28,343 WARN L313 ript$VariableManager]: TermVariabe search_workerThread1of1ForFork0_~upper~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:23:28,343 WARN L313 ript$VariableManager]: TermVariabe |search_workerThread1of1ForFork0_#t~mem1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:23:28,343 WARN L313 ript$VariableManager]: TermVariabe search_workerThread1of1ForFork0_~lower~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:23:28,344 WARN L313 ript$VariableManager]: TermVariabe search_workerThread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:23:28,344 WARN L313 ript$VariableManager]: TermVariabe search_workerThread1of1ForFork0_~upper~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:23:28,344 WARN L313 ript$VariableManager]: TermVariabe search_workerThread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:23:28,345 WARN L313 ript$VariableManager]: TermVariabe search_workerThread1of1ForFork0_~upper~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:23:28,345 WARN L313 ript$VariableManager]: TermVariabe search_workerThread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:23:28,345 WARN L313 ript$VariableManager]: TermVariabe |search_workerThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:23:28,346 WARN L313 ript$VariableManager]: TermVariabe |search_workerThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:23:28,346 WARN L313 ript$VariableManager]: TermVariabe search_workerThread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:23:28,346 WARN L313 ript$VariableManager]: TermVariabe |search_workerThread1of1ForFork0_#t~mem3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:23:28,347 WARN L313 ript$VariableManager]: TermVariabe |search_workerThread1of1ForFork0_#t~mem3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:23:28,347 WARN L313 ript$VariableManager]: TermVariabe |search_workerThread1of1ForFork0_#t~mem3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:23:28,347 WARN L313 ript$VariableManager]: TermVariabe |search_workerThread1of1ForFork0_#t~mem3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:23:28,347 WARN L313 ript$VariableManager]: TermVariabe |search_workerThread1of1ForFork0_#t~mem3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:23:28,348 WARN L313 ript$VariableManager]: TermVariabe search_workerThread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:23:28,348 WARN L313 ript$VariableManager]: TermVariabe |search_workerThread1of1ForFork0_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:23:28,348 WARN L313 ript$VariableManager]: TermVariabe search_workerThread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:23:28,349 WARN L313 ript$VariableManager]: TermVariabe |search_workerThread1of1ForFork0_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:23:28,349 WARN L313 ript$VariableManager]: TermVariabe search_workerThread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:23:28,349 WARN L313 ript$VariableManager]: TermVariabe |search_workerThread1of1ForFork0_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:23:28,350 WARN L313 ript$VariableManager]: TermVariabe |search_workerThread1of1ForFork1_#in~params.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:23:28,350 WARN L313 ript$VariableManager]: TermVariabe |search_workerThread1of1ForFork1_#in~params.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:23:28,350 WARN L313 ript$VariableManager]: TermVariabe search_workerThread1of1ForFork1_~params.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:23:28,350 WARN L313 ript$VariableManager]: TermVariabe search_workerThread1of1ForFork1_~params.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:23:28,351 WARN L313 ript$VariableManager]: TermVariabe search_workerThread1of1ForFork1_~params.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:23:28,351 WARN L313 ript$VariableManager]: TermVariabe search_workerThread1of1ForFork1_~params.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:23:28,351 WARN L313 ript$VariableManager]: TermVariabe search_workerThread1of1ForFork1_~bounds~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:23:28,351 WARN L313 ript$VariableManager]: TermVariabe search_workerThread1of1ForFork1_~bounds~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:23:28,352 WARN L313 ript$VariableManager]: TermVariabe search_workerThread1of1ForFork1_~bounds~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:23:28,352 WARN L313 ript$VariableManager]: TermVariabe search_workerThread1of1ForFork1_~bounds~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:23:28,352 WARN L313 ript$VariableManager]: TermVariabe |search_workerThread1of1ForFork1_#t~mem0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:23:28,353 WARN L313 ript$VariableManager]: TermVariabe |search_workerThread1of1ForFork1_#t~mem0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:23:28,353 WARN L313 ript$VariableManager]: TermVariabe search_workerThread1of1ForFork1_~lower~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:23:28,353 WARN L313 ript$VariableManager]: TermVariabe |search_workerThread1of1ForFork1_#t~mem0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:23:28,353 WARN L313 ript$VariableManager]: TermVariabe search_workerThread1of1ForFork1_~bounds~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:23:28,354 WARN L313 ript$VariableManager]: TermVariabe search_workerThread1of1ForFork1_~bounds~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:23:28,354 WARN L313 ript$VariableManager]: TermVariabe |search_workerThread1of1ForFork1_#t~mem1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:23:28,354 WARN L313 ript$VariableManager]: TermVariabe |search_workerThread1of1ForFork1_#t~mem1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:23:28,355 WARN L313 ript$VariableManager]: TermVariabe search_workerThread1of1ForFork1_~upper~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:23:28,355 WARN L313 ript$VariableManager]: TermVariabe |search_workerThread1of1ForFork1_#t~mem1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:23:28,355 WARN L313 ript$VariableManager]: TermVariabe search_workerThread1of1ForFork1_~lower~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:23:28,355 WARN L313 ript$VariableManager]: TermVariabe search_workerThread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:23:28,356 WARN L313 ript$VariableManager]: TermVariabe search_workerThread1of1ForFork1_~upper~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:23:28,356 WARN L313 ript$VariableManager]: TermVariabe search_workerThread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:23:28,356 WARN L313 ript$VariableManager]: TermVariabe search_workerThread1of1ForFork1_~upper~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:23:28,356 WARN L313 ript$VariableManager]: TermVariabe search_workerThread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:23:28,357 WARN L313 ript$VariableManager]: TermVariabe |search_workerThread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:23:28,357 WARN L313 ript$VariableManager]: TermVariabe |search_workerThread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:23:28,357 WARN L313 ript$VariableManager]: TermVariabe search_workerThread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:23:28,357 WARN L313 ript$VariableManager]: TermVariabe |search_workerThread1of1ForFork1_#t~mem3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:23:28,358 WARN L313 ript$VariableManager]: TermVariabe |search_workerThread1of1ForFork1_#t~mem3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:23:28,358 WARN L313 ript$VariableManager]: TermVariabe |search_workerThread1of1ForFork1_#t~mem3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:23:28,358 WARN L313 ript$VariableManager]: TermVariabe |search_workerThread1of1ForFork1_#t~mem3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:23:28,359 WARN L313 ript$VariableManager]: TermVariabe |search_workerThread1of1ForFork1_#t~mem3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:23:28,359 WARN L313 ript$VariableManager]: TermVariabe search_workerThread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:23:28,359 WARN L313 ript$VariableManager]: TermVariabe |search_workerThread1of1ForFork1_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:23:28,360 WARN L313 ript$VariableManager]: TermVariabe search_workerThread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:23:28,360 WARN L313 ript$VariableManager]: TermVariabe |search_workerThread1of1ForFork1_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:23:28,360 WARN L313 ript$VariableManager]: TermVariabe search_workerThread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:23:28,360 WARN L313 ript$VariableManager]: TermVariabe |search_workerThread1of1ForFork1_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:23:28,365 WARN L313 ript$VariableManager]: TermVariabe |search_workerThread1of1ForFork0_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:23:28,365 WARN L313 ript$VariableManager]: TermVariabe search_workerThread1of1ForFork0_~params.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:23:28,365 WARN L313 ript$VariableManager]: TermVariabe |search_workerThread1of1ForFork0_#t~mem1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:23:28,366 WARN L313 ript$VariableManager]: TermVariabe search_workerThread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:23:28,366 WARN L313 ript$VariableManager]: TermVariabe |search_workerThread1of1ForFork0_#t~mem3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:23:28,366 WARN L313 ript$VariableManager]: TermVariabe search_workerThread1of1ForFork0_~bounds~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:23:28,367 WARN L313 ript$VariableManager]: TermVariabe |search_workerThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:23:28,367 WARN L313 ript$VariableManager]: TermVariabe search_workerThread1of1ForFork0_~params.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:23:28,367 WARN L313 ript$VariableManager]: TermVariabe search_workerThread1of1ForFork0_~bounds~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:23:28,367 WARN L313 ript$VariableManager]: TermVariabe |search_workerThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:23:28,368 WARN L313 ript$VariableManager]: TermVariabe search_workerThread1of1ForFork0_~lower~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:23:28,368 WARN L313 ript$VariableManager]: TermVariabe |search_workerThread1of1ForFork0_#t~mem0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:23:28,368 WARN L313 ript$VariableManager]: TermVariabe search_workerThread1of1ForFork0_~upper~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:23:28,375 WARN L313 ript$VariableManager]: TermVariabe |search_workerThread1of1ForFork1_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:23:28,376 WARN L313 ript$VariableManager]: TermVariabe |search_workerThread1of1ForFork1_#t~mem1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:23:28,376 WARN L313 ript$VariableManager]: TermVariabe search_workerThread1of1ForFork1_~params.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:23:28,376 WARN L313 ript$VariableManager]: TermVariabe |search_workerThread1of1ForFork1_#t~mem0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:23:28,376 WARN L313 ript$VariableManager]: TermVariabe |search_workerThread1of1ForFork1_#t~mem3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:23:28,377 WARN L313 ript$VariableManager]: TermVariabe search_workerThread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:23:28,377 WARN L313 ript$VariableManager]: TermVariabe search_workerThread1of1ForFork1_~bounds~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:23:28,377 WARN L313 ript$VariableManager]: TermVariabe |search_workerThread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:23:28,377 WARN L313 ript$VariableManager]: TermVariabe search_workerThread1of1ForFork1_~params.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:23:28,378 WARN L313 ript$VariableManager]: TermVariabe |search_workerThread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:23:28,378 WARN L313 ript$VariableManager]: TermVariabe search_workerThread1of1ForFork1_~bounds~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:23:28,378 WARN L313 ript$VariableManager]: TermVariabe search_workerThread1of1ForFork1_~lower~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:23:28,378 WARN L313 ript$VariableManager]: TermVariabe search_workerThread1of1ForFork1_~upper~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:23:28,416 INFO L251 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2020-10-06 01:23:28,446 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-06 01:23:28,446 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-06 01:23:28,446 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-06 01:23:28,446 INFO L378 AbstractCegarLoop]: Backedges is MCR [2020-10-06 01:23:28,447 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-06 01:23:28,447 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-06 01:23:28,447 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-06 01:23:28,447 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-06 01:23:28,468 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 135 places, 138 transitions, 298 flow [2020-10-06 01:23:28,471 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 135 places, 138 transitions, 298 flow [2020-10-06 01:23:28,594 INFO L129 PetriNetUnfolder]: 9/138 cut-off events. [2020-10-06 01:23:28,594 INFO L130 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2020-10-06 01:23:28,605 INFO L80 FinitePrefix]: Finished finitePrefix Result has 149 conditions, 138 events. 9/138 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 159 event pairs, 0 based on Foata normal form. 0/129 useless extension candidates. Maximal degree in co-relation 71. Up to 3 conditions per place. [2020-10-06 01:23:28,609 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 135 places, 138 transitions, 298 flow [2020-10-06 01:23:28,649 INFO L129 PetriNetUnfolder]: 9/138 cut-off events. [2020-10-06 01:23:28,650 INFO L130 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2020-10-06 01:23:28,651 INFO L80 FinitePrefix]: Finished finitePrefix Result has 149 conditions, 138 events. 9/138 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 159 event pairs, 0 based on Foata normal form. 0/129 useless extension candidates. Maximal degree in co-relation 71. Up to 3 conditions per place. [2020-10-06 01:23:28,654 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 1920 [2020-10-06 01:23:28,655 INFO L182 etLargeBlockEncoding]: Variable Check. [2020-10-06 01:23:30,906 WARN L193 SmtUtils]: Spent 130.00 ms on a formula simplification that was a NOOP. DAG size: 87 [2020-10-06 01:23:31,027 WARN L193 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 83 [2020-10-06 01:23:31,403 WARN L193 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 55 [2020-10-06 01:23:31,759 WARN L193 SmtUtils]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 81 [2020-10-06 01:23:31,778 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 11, 1] term [2020-10-06 01:23:31,778 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-06 01:23:31,781 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-06 01:23:31,785 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-06 01:23:32,315 WARN L193 SmtUtils]: Spent 446.00 ms on a formula simplification. DAG size of input: 125 DAG size of output: 119 [2020-10-06 01:23:32,513 WARN L193 SmtUtils]: Spent 187.00 ms on a formula simplification that was a NOOP. DAG size: 107 [2020-10-06 01:23:32,761 WARN L193 SmtUtils]: Spent 242.00 ms on a formula simplification that was a NOOP. DAG size: 114 [2020-10-06 01:23:33,017 WARN L193 SmtUtils]: Spent 252.00 ms on a formula simplification that was a NOOP. DAG size: 112 [2020-10-06 01:23:33,028 INFO L206 etLargeBlockEncoding]: Checked pairs total: 2754 [2020-10-06 01:23:33,028 INFO L214 etLargeBlockEncoding]: Total number of compositions: 121 [2020-10-06 01:23:33,032 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 31 places, 30 transitions, 82 flow [2020-10-06 01:23:33,048 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 126 states. [2020-10-06 01:23:33,050 INFO L276 IsEmpty]: Start isEmpty. Operand 126 states. [2020-10-06 01:23:33,060 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-10-06 01:23:33,060 INFO L414 BasicCegarLoop]: Found error trace [2020-10-06 01:23:33,061 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-06 01:23:33,062 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2020-10-06 01:23:33,067 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-06 01:23:33,068 INFO L82 PathProgramCache]: Analyzing trace with hash -878946956, now seen corresponding path program 1 times [2020-10-06 01:23:33,090 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-06 01:23:33,090 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [932061403] [2020-10-06 01:23:33,090 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-06 01:23:33,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-06 01:23:33,319 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-06 01:23:33,319 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [932061403] [2020-10-06 01:23:33,320 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-06 01:23:33,321 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-06 01:23:33,321 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1427375330] [2020-10-06 01:23:33,322 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-06 01:23:33,328 INFO L255 McrAutomatonBuilder]: Started intersection. [2020-10-06 01:23:33,355 INFO L258 McrAutomatonBuilder]: Finished intersection with 46 states and 80 transitions. [2020-10-06 01:23:33,355 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-06 01:23:33,499 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-06 01:23:33,500 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-06 01:23:33,500 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-06 01:23:33,515 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-06 01:23:33,516 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-06 01:23:33,518 INFO L87 Difference]: Start difference. First operand 126 states. Second operand 5 states. [2020-10-06 01:23:33,611 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-06 01:23:33,612 INFO L93 Difference]: Finished difference Result 126 states and 313 transitions. [2020-10-06 01:23:33,612 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-06 01:23:33,614 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 16 [2020-10-06 01:23:33,614 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-06 01:23:33,626 INFO L225 Difference]: With dead ends: 126 [2020-10-06 01:23:33,627 INFO L226 Difference]: Without dead ends: 104 [2020-10-06 01:23:33,628 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-10-06 01:23:33,647 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 104 states. [2020-10-06 01:23:33,672 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 104 to 104. [2020-10-06 01:23:33,674 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 104 states. [2020-10-06 01:23:33,676 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 104 states and 267 transitions. [2020-10-06 01:23:33,677 INFO L78 Accepts]: Start accepts. Automaton has 104 states and 267 transitions. Word has length 16 [2020-10-06 01:23:33,678 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-06 01:23:33,678 INFO L479 AbstractCegarLoop]: Abstraction has 104 states and 267 transitions. [2020-10-06 01:23:33,679 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-06 01:23:33,679 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 267 transitions. [2020-10-06 01:23:33,681 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-10-06 01:23:33,681 INFO L414 BasicCegarLoop]: Found error trace [2020-10-06 01:23:33,681 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-06 01:23:33,681 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-06 01:23:33,682 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2020-10-06 01:23:33,682 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-06 01:23:33,682 INFO L82 PathProgramCache]: Analyzing trace with hash 351436872, now seen corresponding path program 1 times [2020-10-06 01:23:33,683 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-06 01:23:33,684 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2073588660] [2020-10-06 01:23:33,684 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-06 01:23:33,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-06 01:23:33,785 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-06 01:23:33,785 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2073588660] [2020-10-06 01:23:33,786 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-06 01:23:33,786 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-10-06 01:23:33,786 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1061895223] [2020-10-06 01:23:33,786 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-06 01:23:33,789 INFO L255 McrAutomatonBuilder]: Started intersection. [2020-10-06 01:23:33,797 INFO L258 McrAutomatonBuilder]: Finished intersection with 43 states and 74 transitions. [2020-10-06 01:23:33,797 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-06 01:23:33,874 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-06 01:23:33,875 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-06 01:23:33,875 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-06 01:23:33,876 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-06 01:23:33,876 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-06 01:23:33,876 INFO L87 Difference]: Start difference. First operand 104 states and 267 transitions. Second operand 3 states. [2020-10-06 01:23:33,904 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-06 01:23:33,904 INFO L93 Difference]: Finished difference Result 170 states and 444 transitions. [2020-10-06 01:23:33,905 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-06 01:23:33,905 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 16 [2020-10-06 01:23:33,905 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-06 01:23:33,908 INFO L225 Difference]: With dead ends: 170 [2020-10-06 01:23:33,908 INFO L226 Difference]: Without dead ends: 163 [2020-10-06 01:23:33,910 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 26 SyntacticMatches, 1 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-06 01:23:33,911 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 163 states. [2020-10-06 01:23:33,927 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 163 to 140. [2020-10-06 01:23:33,927 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 140 states. [2020-10-06 01:23:33,928 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 140 states to 140 states and 372 transitions. [2020-10-06 01:23:33,929 INFO L78 Accepts]: Start accepts. Automaton has 140 states and 372 transitions. Word has length 16 [2020-10-06 01:23:33,929 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-06 01:23:33,929 INFO L479 AbstractCegarLoop]: Abstraction has 140 states and 372 transitions. [2020-10-06 01:23:33,929 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-06 01:23:33,929 INFO L276 IsEmpty]: Start isEmpty. Operand 140 states and 372 transitions. [2020-10-06 01:23:33,931 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-10-06 01:23:33,932 INFO L414 BasicCegarLoop]: Found error trace [2020-10-06 01:23:33,932 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-06 01:23:33,932 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-06 01:23:33,932 INFO L427 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2020-10-06 01:23:33,933 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-06 01:23:33,933 INFO L82 PathProgramCache]: Analyzing trace with hash 443469900, now seen corresponding path program 1 times [2020-10-06 01:23:33,934 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-06 01:23:33,935 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [645479128] [2020-10-06 01:23:33,935 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-06 01:23:34,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-06 01:23:34,163 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-06 01:23:34,163 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [645479128] [2020-10-06 01:23:34,164 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [870503603] [2020-10-06 01:23:34,164 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-06 01:23:34,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-06 01:23:34,263 INFO L263 TraceCheckSpWp]: Trace formula consists of 160 conjuncts, 29 conjunts are in the unsatisfiable core [2020-10-06 01:23:34,269 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-06 01:23:34,311 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-06 01:23:34,311 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-06 01:23:34,312 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 6 [2020-10-06 01:23:34,312 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [2119823118] [2020-10-06 01:23:34,312 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-06 01:23:34,316 INFO L255 McrAutomatonBuilder]: Started intersection. [2020-10-06 01:23:34,329 INFO L258 McrAutomatonBuilder]: Finished intersection with 60 states and 111 transitions. [2020-10-06 01:23:34,329 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-06 01:23:34,447 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-10-06 01:23:34,486 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-10-06 01:23:34,506 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-10-06 01:23:34,522 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-10-06 01:23:34,534 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 1 new interpolants: [1248#(or (and (= |ULTIMATE.start_main_~#haystack~0.offset| 0) (= (select (select |#memory_int| |ULTIMATE.start_main_~#haystack~0.base|) (* search_workerThread1of1ForFork1_~i~0 4)) ULTIMATE.start_main_~needle~0)) (not (= ~search_needle~0 (select (select |#memory_int| ~search_haystack~0.base) (+ ~search_haystack~0.offset (* search_workerThread1of1ForFork1_~i~0 4))))))] [2020-10-06 01:23:34,534 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-06 01:23:34,535 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-06 01:23:34,535 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-06 01:23:34,535 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2020-10-06 01:23:34,535 INFO L87 Difference]: Start difference. First operand 140 states and 372 transitions. Second operand 6 states. [2020-10-06 01:23:34,678 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-06 01:23:34,678 INFO L93 Difference]: Finished difference Result 202 states and 539 transitions. [2020-10-06 01:23:34,679 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-06 01:23:34,679 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 19 [2020-10-06 01:23:34,679 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-06 01:23:34,681 INFO L225 Difference]: With dead ends: 202 [2020-10-06 01:23:34,682 INFO L226 Difference]: Without dead ends: 158 [2020-10-06 01:23:34,682 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 47 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=45, Invalid=87, Unknown=0, NotChecked=0, Total=132 [2020-10-06 01:23:34,683 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 158 states. [2020-10-06 01:23:34,693 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 158 to 110. [2020-10-06 01:23:34,693 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 110 states. [2020-10-06 01:23:34,694 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 110 states to 110 states and 290 transitions. [2020-10-06 01:23:34,694 INFO L78 Accepts]: Start accepts. Automaton has 110 states and 290 transitions. Word has length 19 [2020-10-06 01:23:34,695 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-06 01:23:34,695 INFO L479 AbstractCegarLoop]: Abstraction has 110 states and 290 transitions. [2020-10-06 01:23:34,695 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-06 01:23:34,695 INFO L276 IsEmpty]: Start isEmpty. Operand 110 states and 290 transitions. [2020-10-06 01:23:34,697 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2020-10-06 01:23:34,697 INFO L414 BasicCegarLoop]: Found error trace [2020-10-06 01:23:34,697 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-06 01:23:34,910 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2020-10-06 01:23:34,911 INFO L427 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2020-10-06 01:23:34,911 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-06 01:23:34,911 INFO L82 PathProgramCache]: Analyzing trace with hash -799546606, now seen corresponding path program 1 times [2020-10-06 01:23:34,913 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-06 01:23:34,913 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1980503268] [2020-10-06 01:23:34,913 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-06 01:23:34,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-06 01:23:35,398 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-06 01:23:35,399 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1980503268] [2020-10-06 01:23:35,399 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-06 01:23:35,399 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-06 01:23:35,400 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1133561082] [2020-10-06 01:23:35,400 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-06 01:23:35,403 INFO L255 McrAutomatonBuilder]: Started intersection. [2020-10-06 01:23:35,412 INFO L258 McrAutomatonBuilder]: Finished intersection with 50 states and 86 transitions. [2020-10-06 01:23:35,412 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-06 01:23:36,074 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 9 new interpolants: [1687#(and (= (mod ~search_found~0 256) 0) (< search_workerThread1of1ForFork1_~i~0 search_workerThread1of1ForFork1_~upper~0)), 1688#(and (or (not (= (mod ~search_found~0 256) 0)) (and (= (mod ~search_found~0 256) 0) (< search_workerThread1of1ForFork1_~i~0 search_workerThread1of1ForFork1_~upper~0)) (<= search_workerThread1of1ForFork0_~upper~0 search_workerThread1of1ForFork0_~i~0)) (or (and (= (mod ~search_found~0 256) 0) (< search_workerThread1of1ForFork1_~i~0 search_workerThread1of1ForFork1_~upper~0)) (= search_workerThread1of1ForFork0_~i~0 0))), 1689#(and (or (not (= (mod ~search_found~0 256) 0)) (<= (select (select |#memory_int| search_workerThread1of1ForFork0_~bounds~0.base) (+ search_workerThread1of1ForFork0_~bounds~0.offset 4)) search_workerThread1of1ForFork0_~lower~0) (and (= (mod ~search_found~0 256) 0) (< search_workerThread1of1ForFork1_~i~0 search_workerThread1of1ForFork1_~upper~0))) (or (= search_workerThread1of1ForFork0_~lower~0 0) (and (= (mod ~search_found~0 256) 0) (< search_workerThread1of1ForFork1_~i~0 search_workerThread1of1ForFork1_~upper~0)))), 1690#(and (= (mod ~search_found~0 256) 0) (< (select (select |#memory_int| |search_workerThread1of1ForFork1_#in~params.base|) |search_workerThread1of1ForFork1_#in~params.offset|) (select (select |#memory_int| |search_workerThread1of1ForFork1_#in~params.base|) (+ |search_workerThread1of1ForFork1_#in~params.offset| 4)))), 1691#(and (or (not (= (mod ~search_found~0 256) 0)) (<= search_workerThread1of1ForFork0_~upper~0 search_workerThread1of1ForFork0_~i~0) (and (= (mod ~search_found~0 256) 0) (< (select (select |#memory_int| |search_workerThread1of1ForFork1_#in~params.base|) |search_workerThread1of1ForFork1_#in~params.offset|) (select (select |#memory_int| |search_workerThread1of1ForFork1_#in~params.base|) (+ |search_workerThread1of1ForFork1_#in~params.offset| 4))))) (or (= search_workerThread1of1ForFork0_~i~0 0) (and (= (mod ~search_found~0 256) 0) (< (select (select |#memory_int| |search_workerThread1of1ForFork1_#in~params.base|) |search_workerThread1of1ForFork1_#in~params.offset|) (select (select |#memory_int| |search_workerThread1of1ForFork1_#in~params.base|) (+ |search_workerThread1of1ForFork1_#in~params.offset| 4)))))), 1692#(and (or (= search_workerThread1of1ForFork0_~lower~0 0) (and (= (mod ~search_found~0 256) 0) (< (select (select |#memory_int| |search_workerThread1of1ForFork1_#in~params.base|) |search_workerThread1of1ForFork1_#in~params.offset|) (select (select |#memory_int| |search_workerThread1of1ForFork1_#in~params.base|) (+ |search_workerThread1of1ForFork1_#in~params.offset| 4))))) (or (not (= (mod ~search_found~0 256) 0)) (<= (select (select |#memory_int| search_workerThread1of1ForFork0_~bounds~0.base) (+ search_workerThread1of1ForFork0_~bounds~0.offset 4)) search_workerThread1of1ForFork0_~lower~0) (and (= (mod ~search_found~0 256) 0) (< (select (select |#memory_int| |search_workerThread1of1ForFork1_#in~params.base|) |search_workerThread1of1ForFork1_#in~params.offset|) (select (select |#memory_int| |search_workerThread1of1ForFork1_#in~params.base|) (+ |search_workerThread1of1ForFork1_#in~params.offset| 4)))))), 1693#(and (= (mod ~search_found~0 256) 0) (< (select (select |#memory_int| |ULTIMATE.start_search_~#bounds2~0.base|) |ULTIMATE.start_search_~#bounds2~0.offset|) (select (select |#memory_int| |ULTIMATE.start_search_~#bounds2~0.base|) (+ |ULTIMATE.start_search_~#bounds2~0.offset| 4)))), 1694#(and (or (not (= (mod ~search_found~0 256) 0)) (<= search_workerThread1of1ForFork0_~upper~0 search_workerThread1of1ForFork0_~i~0) (and (= (mod ~search_found~0 256) 0) (< (select (select |#memory_int| |ULTIMATE.start_search_~#bounds2~0.base|) |ULTIMATE.start_search_~#bounds2~0.offset|) (select (select |#memory_int| |ULTIMATE.start_search_~#bounds2~0.base|) (+ |ULTIMATE.start_search_~#bounds2~0.offset| 4))))) (or (= search_workerThread1of1ForFork0_~i~0 0) (and (= (mod ~search_found~0 256) 0) (< (select (select |#memory_int| |ULTIMATE.start_search_~#bounds2~0.base|) |ULTIMATE.start_search_~#bounds2~0.offset|) (select (select |#memory_int| |ULTIMATE.start_search_~#bounds2~0.base|) (+ |ULTIMATE.start_search_~#bounds2~0.offset| 4)))))), 1695#(and (or (not (= (mod ~search_found~0 256) 0)) (<= (select (select |#memory_int| search_workerThread1of1ForFork0_~bounds~0.base) (+ search_workerThread1of1ForFork0_~bounds~0.offset 4)) search_workerThread1of1ForFork0_~lower~0) (and (= (mod ~search_found~0 256) 0) (< (select (select |#memory_int| |ULTIMATE.start_search_~#bounds2~0.base|) |ULTIMATE.start_search_~#bounds2~0.offset|) (select (select |#memory_int| |ULTIMATE.start_search_~#bounds2~0.base|) (+ |ULTIMATE.start_search_~#bounds2~0.offset| 4))))) (or (= search_workerThread1of1ForFork0_~lower~0 0) (and (= (mod ~search_found~0 256) 0) (< (select (select |#memory_int| |ULTIMATE.start_search_~#bounds2~0.base|) |ULTIMATE.start_search_~#bounds2~0.offset|) (select (select |#memory_int| |ULTIMATE.start_search_~#bounds2~0.base|) (+ |ULTIMATE.start_search_~#bounds2~0.offset| 4))))))] [2020-10-06 01:23:36,075 INFO L459 AbstractCegarLoop]: Interpolant automaton has 19 states [2020-10-06 01:23:36,075 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-06 01:23:36,075 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2020-10-06 01:23:36,076 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=295, Unknown=0, NotChecked=0, Total=342 [2020-10-06 01:23:36,076 INFO L87 Difference]: Start difference. First operand 110 states and 290 transitions. Second operand 19 states. [2020-10-06 01:23:36,993 WARN L193 SmtUtils]: Spent 145.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2020-10-06 01:23:37,177 WARN L193 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 79 [2020-10-06 01:23:37,431 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 74 [2020-10-06 01:23:37,819 WARN L193 SmtUtils]: Spent 196.00 ms on a formula simplification that was a NOOP. DAG size: 97 [2020-10-06 01:23:38,105 WARN L193 SmtUtils]: Spent 190.00 ms on a formula simplification that was a NOOP. DAG size: 96 [2020-10-06 01:23:38,282 WARN L193 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 59 [2020-10-06 01:23:38,852 WARN L193 SmtUtils]: Spent 290.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 92 [2020-10-06 01:23:39,014 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 86 [2020-10-06 01:23:39,380 WARN L193 SmtUtils]: Spent 251.00 ms on a formula simplification that was a NOOP. DAG size: 107 [2020-10-06 01:23:39,611 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 70 [2020-10-06 01:23:40,232 WARN L193 SmtUtils]: Spent 296.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 90 [2020-10-06 01:23:40,760 WARN L193 SmtUtils]: Spent 420.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 100 [2020-10-06 01:23:40,954 WARN L193 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 91 [2020-10-06 01:23:41,283 WARN L193 SmtUtils]: Spent 210.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 75 [2020-10-06 01:23:41,664 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 81 [2020-10-06 01:23:42,107 WARN L193 SmtUtils]: Spent 388.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 98 [2020-10-06 01:23:42,354 WARN L193 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 56 [2020-10-06 01:23:42,835 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 86 [2020-10-06 01:23:43,047 WARN L193 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 73 [2020-10-06 01:23:43,347 WARN L193 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 64 [2020-10-06 01:23:43,943 WARN L193 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 68 [2020-10-06 01:23:44,372 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-06 01:23:44,372 INFO L93 Difference]: Finished difference Result 341 states and 947 transitions. [2020-10-06 01:23:44,372 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2020-10-06 01:23:44,373 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 20 [2020-10-06 01:23:44,373 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-06 01:23:44,379 INFO L225 Difference]: With dead ends: 341 [2020-10-06 01:23:44,380 INFO L226 Difference]: Without dead ends: 299 [2020-10-06 01:23:44,385 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 18 SyntacticMatches, 3 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 435 ImplicationChecksByTransitivity, 7.1s TimeCoverageRelationStatistics Valid=667, Invalid=2195, Unknown=0, NotChecked=0, Total=2862 [2020-10-06 01:23:44,386 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 299 states. [2020-10-06 01:23:44,405 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 299 to 130. [2020-10-06 01:23:44,405 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 130 states. [2020-10-06 01:23:44,409 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 130 states to 130 states and 351 transitions. [2020-10-06 01:23:44,410 INFO L78 Accepts]: Start accepts. Automaton has 130 states and 351 transitions. Word has length 20 [2020-10-06 01:23:44,410 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-06 01:23:44,410 INFO L479 AbstractCegarLoop]: Abstraction has 130 states and 351 transitions. [2020-10-06 01:23:44,410 INFO L480 AbstractCegarLoop]: Interpolant automaton has 19 states. [2020-10-06 01:23:44,410 INFO L276 IsEmpty]: Start isEmpty. Operand 130 states and 351 transitions. [2020-10-06 01:23:44,411 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2020-10-06 01:23:44,412 INFO L414 BasicCegarLoop]: Found error trace [2020-10-06 01:23:44,412 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-06 01:23:44,414 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-06 01:23:44,414 INFO L427 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2020-10-06 01:23:44,414 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-06 01:23:44,415 INFO L82 PathProgramCache]: Analyzing trace with hash -598861718, now seen corresponding path program 2 times [2020-10-06 01:23:44,416 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-06 01:23:44,416 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [956926227] [2020-10-06 01:23:44,416 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-06 01:23:44,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-06 01:23:44,703 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-06 01:23:44,704 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [956926227] [2020-10-06 01:23:44,704 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1941605038] [2020-10-06 01:23:44,704 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-06 01:23:44,773 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2020-10-06 01:23:44,773 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-10-06 01:23:44,775 INFO L263 TraceCheckSpWp]: Trace formula consists of 162 conjuncts, 70 conjunts are in the unsatisfiable core [2020-10-06 01:23:44,778 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-06 01:23:44,833 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 37 [2020-10-06 01:23:44,842 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 2 xjuncts. [2020-10-06 01:23:44,895 INFO L625 ElimStorePlain]: treesize reduction 22, result has 67.6 percent of original size [2020-10-06 01:23:44,905 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 18 [2020-10-06 01:23:44,906 INFO L545 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-10-06 01:23:44,937 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-06 01:23:44,939 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-10-06 01:23:44,939 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:51, output treesize:42 [2020-10-06 01:23:45,085 INFO L350 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-10-06 01:23:45,086 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 52 [2020-10-06 01:23:45,087 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-06 01:23:45,181 INFO L625 ElimStorePlain]: treesize reduction 16, result has 78.9 percent of original size [2020-10-06 01:23:45,189 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-10-06 01:23:45,192 INFO L545 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 1 dim-2 vars, End of recursive call: 4 dim-0 vars, and 1 xjuncts. [2020-10-06 01:23:45,192 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 5 variables, input treesize:56, output treesize:60 [2020-10-06 01:23:45,194 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-10-06 01:23:45,860 WARN L193 SmtUtils]: Spent 634.00 ms on a formula simplification that was a NOOP. DAG size: 44 [2020-10-06 01:23:45,865 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-10-06 01:23:46,547 WARN L193 SmtUtils]: Spent 639.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 33 [2020-10-06 01:23:46,922 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-06 01:23:46,922 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-06 01:23:46,923 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 9] total 16 [2020-10-06 01:23:46,923 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1067064841] [2020-10-06 01:23:46,923 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-06 01:23:46,927 INFO L255 McrAutomatonBuilder]: Started intersection. [2020-10-06 01:23:46,939 INFO L258 McrAutomatonBuilder]: Finished intersection with 61 states and 109 transitions. [2020-10-06 01:23:46,940 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-06 01:23:47,092 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-06 01:23:47,092 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-06 01:23:47,093 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-06 01:23:47,093 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-06 01:23:47,093 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=260, Unknown=0, NotChecked=0, Total=306 [2020-10-06 01:23:47,093 INFO L87 Difference]: Start difference. First operand 130 states and 351 transitions. Second operand 9 states. [2020-10-06 01:23:47,510 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-06 01:23:47,510 INFO L93 Difference]: Finished difference Result 282 states and 767 transitions. [2020-10-06 01:23:47,510 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-06 01:23:47,511 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 20 [2020-10-06 01:23:47,511 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-06 01:23:47,514 INFO L225 Difference]: With dead ends: 282 [2020-10-06 01:23:47,514 INFO L226 Difference]: Without dead ends: 264 [2020-10-06 01:23:47,515 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 46 SyntacticMatches, 4 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 110 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=95, Invalid=457, Unknown=0, NotChecked=0, Total=552 [2020-10-06 01:23:47,516 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 264 states. [2020-10-06 01:23:47,526 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 264 to 191. [2020-10-06 01:23:47,527 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 191 states. [2020-10-06 01:23:47,528 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 191 states to 191 states and 530 transitions. [2020-10-06 01:23:47,528 INFO L78 Accepts]: Start accepts. Automaton has 191 states and 530 transitions. Word has length 20 [2020-10-06 01:23:47,529 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-06 01:23:47,529 INFO L479 AbstractCegarLoop]: Abstraction has 191 states and 530 transitions. [2020-10-06 01:23:47,529 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-06 01:23:47,529 INFO L276 IsEmpty]: Start isEmpty. Operand 191 states and 530 transitions. [2020-10-06 01:23:47,531 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2020-10-06 01:23:47,531 INFO L414 BasicCegarLoop]: Found error trace [2020-10-06 01:23:47,531 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-06 01:23:47,746 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-06 01:23:47,747 INFO L427 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2020-10-06 01:23:47,747 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-06 01:23:47,748 INFO L82 PathProgramCache]: Analyzing trace with hash -2064989212, now seen corresponding path program 3 times [2020-10-06 01:23:47,750 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-06 01:23:47,751 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [320900558] [2020-10-06 01:23:47,751 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-06 01:23:47,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-06 01:23:47,997 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-06 01:23:47,998 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [320900558] [2020-10-06 01:23:47,998 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [735328473] [2020-10-06 01:23:47,998 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-06 01:23:48,088 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2020-10-06 01:23:48,088 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-10-06 01:23:48,090 INFO L263 TraceCheckSpWp]: Trace formula consists of 162 conjuncts, 33 conjunts are in the unsatisfiable core [2020-10-06 01:23:48,092 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-06 01:23:48,107 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 66 treesize of output 64 [2020-10-06 01:23:48,108 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-06 01:23:48,143 INFO L625 ElimStorePlain]: treesize reduction 42, result has 30.0 percent of original size [2020-10-06 01:23:48,144 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-10-06 01:23:48,145 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:24, output treesize:14 [2020-10-06 01:23:48,214 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2020-10-06 01:23:48,215 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-06 01:23:48,222 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-06 01:23:48,223 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-10-06 01:23:48,224 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:27, output treesize:23 [2020-10-06 01:23:48,314 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-06 01:23:48,315 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-06 01:23:48,315 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 4] total 11 [2020-10-06 01:23:48,315 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [572365216] [2020-10-06 01:23:48,316 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-06 01:23:48,319 INFO L255 McrAutomatonBuilder]: Started intersection. [2020-10-06 01:23:48,329 INFO L258 McrAutomatonBuilder]: Finished intersection with 48 states and 79 transitions. [2020-10-06 01:23:48,329 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-06 01:23:48,382 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-10-06 01:23:48,384 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-10-06 01:23:48,398 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 4 [2020-10-06 01:23:48,399 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-06 01:23:48,406 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 4 [2020-10-06 01:23:48,407 INFO L545 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-10-06 01:23:48,414 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 4 [2020-10-06 01:23:48,415 INFO L545 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2020-10-06 01:23:48,421 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 4 [2020-10-06 01:23:48,422 INFO L545 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2020-10-06 01:23:48,428 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 4 [2020-10-06 01:23:48,429 INFO L545 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2020-10-06 01:23:48,436 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 4 [2020-10-06 01:23:48,437 INFO L545 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2020-10-06 01:23:48,443 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 4 [2020-10-06 01:23:48,444 INFO L545 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts. [2020-10-06 01:23:48,451 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 4 [2020-10-06 01:23:48,452 INFO L545 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2020-10-06 01:23:48,458 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 4 [2020-10-06 01:23:48,459 INFO L545 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 1 xjuncts. [2020-10-06 01:23:48,590 WARN L193 SmtUtils]: Spent 130.00 ms on a formula simplification that was a NOOP. DAG size: 45 [2020-10-06 01:23:48,591 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-06 01:23:48,595 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, End of recursive call: 12 dim-0 vars, and 9 xjuncts. [2020-10-06 01:23:48,595 INFO L244 ElimStorePlain]: Needed 10 recursive calls to eliminate 3 variables, input treesize:388, output treesize:334 [2020-10-06 01:23:48,605 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-10-06 01:23:48,607 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-10-06 01:23:48,620 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 4 [2020-10-06 01:23:48,621 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-06 01:23:48,628 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 4 [2020-10-06 01:23:48,629 INFO L545 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-10-06 01:23:48,636 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 4 [2020-10-06 01:23:48,637 INFO L545 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2020-10-06 01:23:48,643 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 4 [2020-10-06 01:23:48,644 INFO L545 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2020-10-06 01:23:48,650 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 4 [2020-10-06 01:23:48,651 INFO L545 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2020-10-06 01:23:48,657 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 4 [2020-10-06 01:23:48,658 INFO L545 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2020-10-06 01:23:48,664 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 4 [2020-10-06 01:23:48,665 INFO L545 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts. [2020-10-06 01:23:48,672 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 4 [2020-10-06 01:23:48,673 INFO L545 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2020-10-06 01:23:48,679 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 4 [2020-10-06 01:23:48,680 INFO L545 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 1 xjuncts. [2020-10-06 01:23:48,800 WARN L193 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 45 [2020-10-06 01:23:48,800 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-06 01:23:48,804 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, End of recursive call: 12 dim-0 vars, and 9 xjuncts. [2020-10-06 01:23:48,805 INFO L244 ElimStorePlain]: Needed 10 recursive calls to eliminate 3 variables, input treesize:388, output treesize:334 [2020-10-06 01:23:48,821 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-10-06 01:23:48,824 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-10-06 01:23:48,843 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 4 [2020-10-06 01:23:48,844 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-06 01:23:48,850 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 4 [2020-10-06 01:23:48,851 INFO L545 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-10-06 01:23:48,858 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 4 [2020-10-06 01:23:48,859 INFO L545 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2020-10-06 01:23:48,866 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 4 [2020-10-06 01:23:48,866 INFO L545 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2020-10-06 01:23:48,873 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 4 [2020-10-06 01:23:48,874 INFO L545 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2020-10-06 01:23:48,880 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 4 [2020-10-06 01:23:48,881 INFO L545 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2020-10-06 01:23:48,893 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 4 [2020-10-06 01:23:48,894 INFO L545 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts. [2020-10-06 01:23:48,900 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 4 [2020-10-06 01:23:48,901 INFO L545 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2020-10-06 01:23:48,907 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 4 [2020-10-06 01:23:48,908 INFO L545 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 1 xjuncts. [2020-10-06 01:23:49,027 WARN L193 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 45 [2020-10-06 01:23:49,028 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-06 01:23:49,033 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, End of recursive call: 12 dim-0 vars, and 9 xjuncts. [2020-10-06 01:23:49,034 INFO L244 ElimStorePlain]: Needed 10 recursive calls to eliminate 3 variables, input treesize:388, output treesize:334 [2020-10-06 01:23:49,040 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-06 01:23:49,041 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-06 01:23:49,041 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-06 01:23:49,041 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-06 01:23:49,042 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=127, Unknown=0, NotChecked=0, Total=156 [2020-10-06 01:23:49,042 INFO L87 Difference]: Start difference. First operand 191 states and 530 transitions. Second operand 9 states. [2020-10-06 01:23:49,635 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-06 01:23:49,636 INFO L93 Difference]: Finished difference Result 415 states and 1147 transitions. [2020-10-06 01:23:49,636 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-06 01:23:49,637 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 20 [2020-10-06 01:23:49,637 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-06 01:23:49,640 INFO L225 Difference]: With dead ends: 415 [2020-10-06 01:23:49,641 INFO L226 Difference]: Without dead ends: 396 [2020-10-06 01:23:49,641 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=95, Invalid=325, Unknown=0, NotChecked=0, Total=420 [2020-10-06 01:23:49,642 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 396 states. [2020-10-06 01:23:49,651 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 396 to 193. [2020-10-06 01:23:49,652 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 193 states. [2020-10-06 01:23:49,653 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 193 states to 193 states and 534 transitions. [2020-10-06 01:23:49,653 INFO L78 Accepts]: Start accepts. Automaton has 193 states and 534 transitions. Word has length 20 [2020-10-06 01:23:49,653 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-06 01:23:49,653 INFO L479 AbstractCegarLoop]: Abstraction has 193 states and 534 transitions. [2020-10-06 01:23:49,654 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-06 01:23:49,654 INFO L276 IsEmpty]: Start isEmpty. Operand 193 states and 534 transitions. [2020-10-06 01:23:49,655 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-10-06 01:23:49,655 INFO L414 BasicCegarLoop]: Found error trace [2020-10-06 01:23:49,655 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-06 01:23:49,869 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-06 01:23:49,870 INFO L427 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2020-10-06 01:23:49,870 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-06 01:23:49,871 INFO L82 PathProgramCache]: Analyzing trace with hash 2072690650, now seen corresponding path program 1 times [2020-10-06 01:23:49,872 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-06 01:23:49,873 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1472724795] [2020-10-06 01:23:49,873 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-06 01:23:49,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-06 01:23:50,147 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-06 01:23:50,148 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1472724795] [2020-10-06 01:23:50,148 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1834416343] [2020-10-06 01:23:50,148 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-06 01:23:50,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-06 01:23:50,215 INFO L263 TraceCheckSpWp]: Trace formula consists of 168 conjuncts, 70 conjunts are in the unsatisfiable core [2020-10-06 01:23:50,218 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-06 01:23:50,233 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 226 treesize of output 218 [2020-10-06 01:23:50,242 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 2 xjuncts. [2020-10-06 01:23:50,325 INFO L625 ElimStorePlain]: treesize reduction 184, result has 20.0 percent of original size [2020-10-06 01:23:50,335 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 18 [2020-10-06 01:23:50,336 INFO L545 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-10-06 01:23:50,358 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-06 01:23:50,359 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-10-06 01:23:50,359 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:51, output treesize:42 [2020-10-06 01:23:50,468 INFO L350 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-10-06 01:23:50,469 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 52 [2020-10-06 01:23:50,470 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-06 01:23:50,535 INFO L625 ElimStorePlain]: treesize reduction 16, result has 78.9 percent of original size [2020-10-06 01:23:50,538 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-10-06 01:23:50,540 INFO L545 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 1 dim-2 vars, End of recursive call: 4 dim-0 vars, and 1 xjuncts. [2020-10-06 01:23:50,540 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 5 variables, input treesize:56, output treesize:60 [2020-10-06 01:23:50,542 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-10-06 01:23:50,586 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-10-06 01:23:50,977 WARN L193 SmtUtils]: Spent 356.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 33 [2020-10-06 01:23:51,393 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-06 01:23:51,393 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-06 01:23:51,393 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 10] total 18 [2020-10-06 01:23:51,394 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [360125110] [2020-10-06 01:23:51,394 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-06 01:23:51,399 INFO L255 McrAutomatonBuilder]: Started intersection. [2020-10-06 01:23:51,421 INFO L258 McrAutomatonBuilder]: Finished intersection with 71 states and 129 transitions. [2020-10-06 01:23:51,421 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-06 01:23:51,618 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-06 01:23:51,618 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-06 01:23:51,619 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-06 01:23:51,619 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-06 01:23:51,619 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=317, Unknown=0, NotChecked=0, Total=380 [2020-10-06 01:23:51,619 INFO L87 Difference]: Start difference. First operand 193 states and 534 transitions. Second operand 10 states. [2020-10-06 01:23:52,265 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-06 01:23:52,266 INFO L93 Difference]: Finished difference Result 317 states and 868 transitions. [2020-10-06 01:23:52,266 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-06 01:23:52,266 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 22 [2020-10-06 01:23:52,266 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-06 01:23:52,267 INFO L225 Difference]: With dead ends: 317 [2020-10-06 01:23:52,267 INFO L226 Difference]: Without dead ends: 74 [2020-10-06 01:23:52,268 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 85 GetRequests, 51 SyntacticMatches, 8 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 220 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=144, Invalid=612, Unknown=0, NotChecked=0, Total=756 [2020-10-06 01:23:52,269 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74 states. [2020-10-06 01:23:52,271 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74 to 70. [2020-10-06 01:23:52,272 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 70 states. [2020-10-06 01:23:52,272 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 70 states and 149 transitions. [2020-10-06 01:23:52,272 INFO L78 Accepts]: Start accepts. Automaton has 70 states and 149 transitions. Word has length 22 [2020-10-06 01:23:52,272 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-06 01:23:52,273 INFO L479 AbstractCegarLoop]: Abstraction has 70 states and 149 transitions. [2020-10-06 01:23:52,273 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-06 01:23:52,273 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 149 transitions. [2020-10-06 01:23:52,273 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-10-06 01:23:52,273 INFO L414 BasicCegarLoop]: Found error trace [2020-10-06 01:23:52,274 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-06 01:23:52,484 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-06 01:23:52,485 INFO L427 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2020-10-06 01:23:52,485 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-06 01:23:52,486 INFO L82 PathProgramCache]: Analyzing trace with hash 1587846356, now seen corresponding path program 2 times [2020-10-06 01:23:52,488 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-06 01:23:52,488 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [759334019] [2020-10-06 01:23:52,489 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-06 01:23:52,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-06 01:23:52,742 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-06 01:23:52,743 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [759334019] [2020-10-06 01:23:52,743 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1449186349] [2020-10-06 01:23:52,743 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-06 01:23:52,815 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2020-10-06 01:23:52,816 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-10-06 01:23:52,818 INFO L263 TraceCheckSpWp]: Trace formula consists of 168 conjuncts, 62 conjunts are in the unsatisfiable core [2020-10-06 01:23:52,819 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-06 01:23:52,839 INFO L350 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-10-06 01:23:52,840 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 19 treesize of output 34 [2020-10-06 01:23:52,841 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-06 01:23:52,880 INFO L625 ElimStorePlain]: treesize reduction 16, result has 67.3 percent of original size [2020-10-06 01:23:52,881 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-06 01:23:52,881 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:37, output treesize:33 [2020-10-06 01:23:53,213 INFO L350 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-10-06 01:23:53,213 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 39 treesize of output 113 [2020-10-06 01:23:53,215 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-06 01:23:53,277 INFO L625 ElimStorePlain]: treesize reduction 70, result has 40.2 percent of original size [2020-10-06 01:23:53,280 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-10-06 01:23:53,281 INFO L545 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: 3 dim-0 vars, and 1 xjuncts. [2020-10-06 01:23:53,282 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:45, output treesize:47 [2020-10-06 01:23:53,283 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-10-06 01:23:53,346 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-10-06 01:23:54,214 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-10-06 01:23:54,987 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-10-06 01:23:55,769 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-10-06 01:23:56,539 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-10-06 01:23:57,374 WARN L193 SmtUtils]: Spent 797.00 ms on a formula simplification that was a NOOP. DAG size: 32 [2020-10-06 01:23:57,740 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-06 01:23:57,740 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-06 01:23:57,741 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 16 [2020-10-06 01:23:57,741 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [149195763] [2020-10-06 01:23:57,741 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-06 01:23:57,747 INFO L255 McrAutomatonBuilder]: Started intersection. [2020-10-06 01:23:57,769 INFO L258 McrAutomatonBuilder]: Finished intersection with 50 states and 81 transitions. [2020-10-06 01:23:57,769 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-06 01:23:57,793 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-10-06 01:23:57,794 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-10-06 01:23:57,814 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 4 [2020-10-06 01:23:57,827 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-06 01:23:57,873 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 4 [2020-10-06 01:23:57,874 INFO L545 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-10-06 01:23:57,879 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 4 [2020-10-06 01:23:57,880 INFO L545 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2020-10-06 01:23:57,886 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 4 [2020-10-06 01:23:57,887 INFO L545 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2020-10-06 01:23:57,893 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 4 [2020-10-06 01:23:57,894 INFO L545 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2020-10-06 01:23:57,899 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 4 [2020-10-06 01:23:57,900 INFO L545 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2020-10-06 01:23:57,985 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-06 01:23:57,988 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, End of recursive call: 9 dim-0 vars, and 6 xjuncts. [2020-10-06 01:23:57,988 INFO L244 ElimStorePlain]: Needed 7 recursive calls to eliminate 3 variables, input treesize:277, output treesize:241 [2020-10-06 01:23:58,018 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-10-06 01:23:58,019 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-10-06 01:23:58,031 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 4 [2020-10-06 01:23:58,032 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-06 01:23:58,038 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 4 [2020-10-06 01:23:58,039 INFO L545 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-10-06 01:23:58,045 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 4 [2020-10-06 01:23:58,046 INFO L545 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2020-10-06 01:23:58,052 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 4 [2020-10-06 01:23:58,053 INFO L545 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2020-10-06 01:23:58,059 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 4 [2020-10-06 01:23:58,060 INFO L545 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2020-10-06 01:23:58,066 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 4 [2020-10-06 01:23:58,069 INFO L545 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2020-10-06 01:23:58,156 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-06 01:23:58,159 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, End of recursive call: 9 dim-0 vars, and 6 xjuncts. [2020-10-06 01:23:58,160 INFO L244 ElimStorePlain]: Needed 7 recursive calls to eliminate 3 variables, input treesize:277, output treesize:241 [2020-10-06 01:23:58,175 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-10-06 01:23:58,176 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-10-06 01:23:58,189 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 4 [2020-10-06 01:23:58,190 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-06 01:23:58,196 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 4 [2020-10-06 01:23:58,196 INFO L545 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-10-06 01:23:58,202 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 4 [2020-10-06 01:23:58,204 INFO L545 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2020-10-06 01:23:58,210 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 4 [2020-10-06 01:23:58,211 INFO L545 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2020-10-06 01:23:58,215 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 4 [2020-10-06 01:23:58,215 INFO L545 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2020-10-06 01:23:58,220 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 4 [2020-10-06 01:23:58,221 INFO L545 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2020-10-06 01:23:58,304 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-06 01:23:58,307 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, End of recursive call: 9 dim-0 vars, and 6 xjuncts. [2020-10-06 01:23:58,307 INFO L244 ElimStorePlain]: Needed 7 recursive calls to eliminate 3 variables, input treesize:277, output treesize:241 [2020-10-06 01:23:58,310 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-06 01:23:58,311 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-06 01:23:58,311 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-06 01:23:58,311 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-06 01:23:58,311 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=265, Unknown=0, NotChecked=0, Total=306 [2020-10-06 01:23:58,311 INFO L87 Difference]: Start difference. First operand 70 states and 149 transitions. Second operand 10 states. [2020-10-06 01:23:58,975 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-06 01:23:58,975 INFO L93 Difference]: Finished difference Result 95 states and 209 transitions. [2020-10-06 01:23:58,976 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-06 01:23:58,976 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 22 [2020-10-06 01:23:58,976 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-06 01:23:58,977 INFO L225 Difference]: With dead ends: 95 [2020-10-06 01:23:58,977 INFO L226 Difference]: Without dead ends: 0 [2020-10-06 01:23:58,978 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 26 SyntacticMatches, 11 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 104 ImplicationChecksByTransitivity, 5.2s TimeCoverageRelationStatistics Valid=133, Invalid=623, Unknown=0, NotChecked=0, Total=756 [2020-10-06 01:23:58,978 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-06 01:23:58,978 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-06 01:23:58,978 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-06 01:23:58,979 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-06 01:23:58,979 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 22 [2020-10-06 01:23:58,979 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-06 01:23:58,980 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-06 01:23:58,980 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-06 01:23:58,980 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-06 01:23:58,980 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-06 01:23:59,181 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,6 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-06 01:23:59,186 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.10 01:23:59 BasicIcfg [2020-10-06 01:23:59,187 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-06 01:23:59,191 INFO L168 Benchmark]: Toolchain (without parser) took 31818.64 ms. Allocated memory was 140.5 MB in the beginning and 405.8 MB in the end (delta: 265.3 MB). Free memory was 101.6 MB in the beginning and 200.9 MB in the end (delta: -99.4 MB). Peak memory consumption was 165.9 MB. Max. memory is 7.1 GB. [2020-10-06 01:23:59,192 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 140.5 MB. Free memory was 122.0 MB in the beginning and 121.8 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. [2020-10-06 01:23:59,193 INFO L168 Benchmark]: CACSL2BoogieTranslator took 329.55 ms. Allocated memory was 140.5 MB in the beginning and 202.9 MB in the end (delta: 62.4 MB). Free memory was 101.1 MB in the beginning and 178.7 MB in the end (delta: -77.6 MB). Peak memory consumption was 20.4 MB. Max. memory is 7.1 GB. [2020-10-06 01:23:59,199 INFO L168 Benchmark]: Boogie Procedure Inliner took 43.42 ms. Allocated memory is still 202.9 MB. Free memory was 178.7 MB in the beginning and 176.8 MB in the end (delta: 1.9 MB). Peak memory consumption was 1.9 MB. Max. memory is 7.1 GB. [2020-10-06 01:23:59,200 INFO L168 Benchmark]: Boogie Preprocessor took 28.54 ms. Allocated memory is still 202.9 MB. Free memory was 176.8 MB in the beginning and 175.5 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. [2020-10-06 01:23:59,200 INFO L168 Benchmark]: RCFGBuilder took 469.34 ms. Allocated memory is still 202.9 MB. Free memory was 175.5 MB in the beginning and 149.2 MB in the end (delta: 26.3 MB). Peak memory consumption was 26.3 MB. Max. memory is 7.1 GB. [2020-10-06 01:23:59,201 INFO L168 Benchmark]: TraceAbstraction took 30942.40 ms. Allocated memory was 202.9 MB in the beginning and 405.8 MB in the end (delta: 202.9 MB). Free memory was 149.2 MB in the beginning and 200.9 MB in the end (delta: -51.7 MB). Peak memory consumption was 151.2 MB. Max. memory is 7.1 GB. [2020-10-06 01:23:59,205 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 ms. Allocated memory is still 140.5 MB. Free memory was 122.0 MB in the beginning and 121.8 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 329.55 ms. Allocated memory was 140.5 MB in the beginning and 202.9 MB in the end (delta: 62.4 MB). Free memory was 101.1 MB in the beginning and 178.7 MB in the end (delta: -77.6 MB). Peak memory consumption was 20.4 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 43.42 ms. Allocated memory is still 202.9 MB. Free memory was 178.7 MB in the beginning and 176.8 MB in the end (delta: 1.9 MB). Peak memory consumption was 1.9 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 28.54 ms. Allocated memory is still 202.9 MB. Free memory was 176.8 MB in the beginning and 175.5 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 469.34 ms. Allocated memory is still 202.9 MB. Free memory was 175.5 MB in the beginning and 149.2 MB in the end (delta: 26.3 MB). Peak memory consumption was 26.3 MB. Max. memory is 7.1 GB. * TraceAbstraction took 30942.40 ms. Allocated memory was 202.9 MB in the beginning and 405.8 MB in the end (delta: 202.9 MB). Free memory was 149.2 MB in the beginning and 200.9 MB in the end (delta: -51.7 MB). Peak memory consumption was 151.2 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 4.5s, 135 ProgramPointsBefore, 31 ProgramPointsAfterwards, 138 TransitionsBefore, 30 TransitionsAfterwards, 1920 CoEnabledTransitionPairs, 8 FixpointIterations, 70 TrivialSequentialCompositions, 35 ConcurrentSequentialCompositions, 5 TrivialYvCompositions, 11 ConcurrentYvCompositions, 4 ChoiceCompositions, 1042 VarBasedMoverChecksPositive, 21 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 0 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 0 MoverChecksTotal, 2754 CheckedPairsTotal, 121 TotalNumberOfCompositions - PositiveResult [Line: 67]: assertion always holds For all program executions holds that assertion always holds at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 107 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 30.7s, OverallIterations: 8, TraceHistogramMax: 2, AutomataDifference: 10.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 4.6s, HoareTripleCheckerStatistics: 231 SDtfs, 773 SDslu, 555 SDs, 0 SdLazy, 2196 SolverSat, 111 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 2.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 473 GetRequests, 284 SyntacticMatches, 28 SemanticMatches, 161 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 904 ImplicationChecksByTransitivity, 16.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=193occurred in iteration=6, 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, 8 MinimizatonAttempts, 520 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 10.1s InterpolantComputationTime, 258 NumberOfCodeBlocks, 258 NumberOfCodeBlocksAsserted, 16 NumberOfCheckSat, 245 ConstructedInterpolants, 72 QuantifiedInterpolants, 107715 SizeOfPredicates, 106 NumberOfNonLiveVariables, 820 ConjunctsInSsa, 264 ConjunctsInUnsatCore, 13 InterpolantComputations, 3 PerfectInterpolantSequences, 1/23 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 correct! Received shutdown request...