/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/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-VariableLbe-McrStrategy.epf -i ../../../trunk/examples/concurrent/pthreads/forkFork.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-b981219 [2020-04-18 16:00:17,452 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-04-18 16:00:17,455 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-04-18 16:00:17,473 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-04-18 16:00:17,474 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-04-18 16:00:17,475 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-04-18 16:00:17,477 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-04-18 16:00:17,490 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-04-18 16:00:17,492 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-04-18 16:00:17,493 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-04-18 16:00:17,494 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-04-18 16:00:17,496 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-04-18 16:00:17,496 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-04-18 16:00:17,500 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-04-18 16:00:17,502 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-04-18 16:00:17,504 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-04-18 16:00:17,506 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-04-18 16:00:17,507 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-04-18 16:00:17,509 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-04-18 16:00:17,514 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-04-18 16:00:17,516 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-04-18 16:00:17,519 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-04-18 16:00:17,520 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-04-18 16:00:17,520 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-04-18 16:00:17,524 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-04-18 16:00:17,524 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-04-18 16:00:17,524 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-04-18 16:00:17,526 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-04-18 16:00:17,528 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-04-18 16:00:17,530 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-04-18 16:00:17,530 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-04-18 16:00:17,531 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-04-18 16:00:17,531 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-04-18 16:00:17,533 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-04-18 16:00:17,536 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-04-18 16:00:17,536 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-04-18 16:00:17,537 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-04-18 16:00:17,537 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-04-18 16:00:17,537 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-04-18 16:00:17,538 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-04-18 16:00:17,539 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-04-18 16:00:17,540 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-VariableLbe-McrStrategy.epf [2020-04-18 16:00:17,562 INFO L113 SettingsManager]: Loading preferences was successful [2020-04-18 16:00:17,562 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-04-18 16:00:17,564 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-04-18 16:00:17,564 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-04-18 16:00:17,564 INFO L138 SettingsManager]: * Use SBE=true [2020-04-18 16:00:17,564 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-04-18 16:00:17,565 INFO L138 SettingsManager]: * sizeof long=4 [2020-04-18 16:00:17,565 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-04-18 16:00:17,565 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-04-18 16:00:17,565 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-04-18 16:00:17,566 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-04-18 16:00:17,566 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-04-18 16:00:17,567 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-04-18 16:00:17,567 INFO L138 SettingsManager]: * sizeof long double=12 [2020-04-18 16:00:17,567 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-04-18 16:00:17,567 INFO L138 SettingsManager]: * Use constant arrays=true [2020-04-18 16:00:17,568 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-04-18 16:00:17,568 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-04-18 16:00:17,568 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-04-18 16:00:17,568 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-04-18 16:00:17,568 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-04-18 16:00:17,569 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-04-18 16:00:17,569 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-04-18 16:00:17,569 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-04-18 16:00:17,569 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-04-18 16:00:17,569 INFO L138 SettingsManager]: * Trace refinement strategy=MCR [2020-04-18 16:00:17,570 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-04-18 16:00:17,570 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=VARIABLE_BASED_MOVER_CHECK [2020-04-18 16:00:17,570 INFO L138 SettingsManager]: * Trace refinement strategy used in MCR=CAMEL [2020-04-18 16:00:17,570 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-04-18 16:00:17,571 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-04-18 16:00:17,827 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-04-18 16:00:17,847 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-04-18 16:00:17,851 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-04-18 16:00:17,852 INFO L271 PluginConnector]: Initializing CDTParser... [2020-04-18 16:00:17,853 INFO L275 PluginConnector]: CDTParser initialized [2020-04-18 16:00:17,854 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/pthreads/forkFork.c [2020-04-18 16:00:17,922 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/74b32f653/c6ffa21657a44d0986f442d0ecdce041/FLAGcfbaec5b5 [2020-04-18 16:00:18,350 INFO L306 CDTParser]: Found 1 translation units. [2020-04-18 16:00:18,351 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/concurrent/pthreads/forkFork.c [2020-04-18 16:00:18,351 WARN L117 ultiparseSymbolTable]: System include pthread.h could not be resolved by CDT -- only built-in system includes are available. [2020-04-18 16:00:18,352 WARN L117 ultiparseSymbolTable]: System include stdio.h could not be resolved by CDT -- only built-in system includes are available. [2020-04-18 16:00:18,402 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/74b32f653/c6ffa21657a44d0986f442d0ecdce041/FLAGcfbaec5b5 [2020-04-18 16:00:18,756 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/74b32f653/c6ffa21657a44d0986f442d0ecdce041 [2020-04-18 16:00:18,764 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-04-18 16:00:18,787 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-04-18 16:00:18,788 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-04-18 16:00:18,789 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-04-18 16:00:18,792 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-04-18 16:00:18,793 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.04 04:00:18" (1/1) ... [2020-04-18 16:00:18,796 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@19eafcc9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:00:18, skipping insertion in model container [2020-04-18 16:00:18,796 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.04 04:00:18" (1/1) ... [2020-04-18 16:00:18,803 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-04-18 16:00:18,820 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-04-18 16:00:18,980 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-04-18 16:00:19,077 INFO L203 MainTranslator]: Completed pre-run [2020-04-18 16:00:19,097 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-04-18 16:00:19,111 INFO L208 MainTranslator]: Completed translation [2020-04-18 16:00:19,111 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:00:19 WrapperNode [2020-04-18 16:00:19,112 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-04-18 16:00:19,112 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-04-18 16:00:19,113 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-04-18 16:00:19,113 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-04-18 16:00:19,121 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:00:19" (1/1) ... [2020-04-18 16:00:19,129 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:00:19" (1/1) ... [2020-04-18 16:00:19,149 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-04-18 16:00:19,149 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-04-18 16:00:19,149 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-04-18 16:00:19,149 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-04-18 16:00:19,158 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:00:19" (1/1) ... [2020-04-18 16:00:19,159 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:00:19" (1/1) ... [2020-04-18 16:00:19,161 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:00:19" (1/1) ... [2020-04-18 16:00:19,161 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:00:19" (1/1) ... [2020-04-18 16:00:19,168 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:00:19" (1/1) ... [2020-04-18 16:00:19,169 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:00:19" (1/1) ... [2020-04-18 16:00:19,171 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:00:19" (1/1) ... [2020-04-18 16:00:19,173 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-04-18 16:00:19,174 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-04-18 16:00:19,174 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-04-18 16:00:19,174 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-04-18 16:00:19,175 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:00:19" (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 [2020-04-18 16:00:19,235 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-04-18 16:00:19,235 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-04-18 16:00:19,236 INFO L130 BoogieDeclarations]: Found specification of procedure bar [2020-04-18 16:00:19,236 INFO L138 BoogieDeclarations]: Found implementation of procedure bar [2020-04-18 16:00:19,237 INFO L130 BoogieDeclarations]: Found specification of procedure foo [2020-04-18 16:00:19,237 INFO L138 BoogieDeclarations]: Found implementation of procedure foo [2020-04-18 16:00:19,238 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-04-18 16:00:19,238 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-04-18 16:00:19,238 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-04-18 16:00:19,239 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-04-18 16:00:19,239 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-04-18 16:00:19,239 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-04-18 16:00:19,239 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-04-18 16:00:19,241 WARN L205 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-04-18 16:00:19,570 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-04-18 16:00:19,570 INFO L295 CfgBuilder]: Removed 4 assume(true) statements. [2020-04-18 16:00:19,574 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.04 04:00:19 BoogieIcfgContainer [2020-04-18 16:00:19,574 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-04-18 16:00:19,575 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-04-18 16:00:19,575 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-04-18 16:00:19,578 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-04-18 16:00:19,578 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.04 04:00:18" (1/3) ... [2020-04-18 16:00:19,579 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@434f451 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.04 04:00:19, skipping insertion in model container [2020-04-18 16:00:19,579 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:00:19" (2/3) ... [2020-04-18 16:00:19,580 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@434f451 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.04 04:00:19, skipping insertion in model container [2020-04-18 16:00:19,580 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.04 04:00:19" (3/3) ... [2020-04-18 16:00:19,581 INFO L109 eAbstractionObserver]: Analyzing ICFG forkFork.c [2020-04-18 16:00:19,590 WARN L146 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-04-18 16:00:19,590 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-04-18 16:00:19,598 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2020-04-18 16:00:19,599 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-04-18 16:00:19,629 WARN L315 ript$VariableManager]: TermVariabe |barThread1of1ForFork0_#in~b.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:00:19,629 WARN L315 ript$VariableManager]: TermVariabe |barThread1of1ForFork0_#in~b.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:00:19,630 WARN L315 ript$VariableManager]: TermVariabe barThread1of1ForFork0_~b.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:00:19,630 WARN L315 ript$VariableManager]: TermVariabe barThread1of1ForFork0_~b.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:00:19,630 WARN L315 ript$VariableManager]: TermVariabe barThread1of1ForFork0_~b.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:00:19,630 WARN L315 ript$VariableManager]: TermVariabe barThread1of1ForFork0_~b.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:00:19,631 WARN L315 ript$VariableManager]: TermVariabe barThread1of1ForFork0_~c~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:00:19,631 WARN L315 ript$VariableManager]: TermVariabe barThread1of1ForFork0_~c~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:00:19,631 WARN L315 ript$VariableManager]: TermVariabe barThread1of1ForFork0_~c~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:00:19,631 WARN L315 ript$VariableManager]: TermVariabe barThread1of1ForFork0_~c~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:00:19,631 WARN L315 ript$VariableManager]: TermVariabe |barThread1of1ForFork0_#t~mem0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:00:19,632 WARN L315 ript$VariableManager]: TermVariabe |barThread1of1ForFork0_#t~mem0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:00:19,632 WARN L315 ript$VariableManager]: TermVariabe barThread1of1ForFork0_~val~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:00:19,632 WARN L315 ript$VariableManager]: TermVariabe |barThread1of1ForFork0_#t~mem0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:00:19,632 WARN L315 ript$VariableManager]: TermVariabe barThread1of1ForFork0_~val~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:00:19,633 WARN L315 ript$VariableManager]: TermVariabe barThread1of1ForFork0_~val~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:00:19,633 WARN L315 ript$VariableManager]: TermVariabe barThread1of1ForFork0_~c~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:00:19,633 WARN L315 ript$VariableManager]: TermVariabe barThread1of1ForFork0_~c~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:00:19,633 WARN L315 ript$VariableManager]: TermVariabe |barThread1of1ForFork0_#t~mem1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:00:19,633 WARN L315 ript$VariableManager]: TermVariabe barThread1of1ForFork0_~c~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:00:19,634 WARN L315 ript$VariableManager]: TermVariabe barThread1of1ForFork0_~c~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:00:19,634 WARN L315 ript$VariableManager]: TermVariabe |barThread1of1ForFork0_#t~mem1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:00:19,635 WARN L315 ript$VariableManager]: TermVariabe |barThread1of1ForFork0_#t~mem1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:00:19,635 WARN L315 ript$VariableManager]: TermVariabe barThread1of1ForFork0_~c~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:00:19,635 WARN L315 ript$VariableManager]: TermVariabe barThread1of1ForFork0_~c~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:00:19,635 WARN L315 ript$VariableManager]: TermVariabe |barThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:00:19,635 WARN L315 ript$VariableManager]: TermVariabe |barThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:00:19,636 WARN L315 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_#in~a.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:00:19,636 WARN L315 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_#in~a.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:00:19,637 WARN L315 ript$VariableManager]: TermVariabe fooThread1of1ForFork1_~a.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:00:19,637 WARN L315 ript$VariableManager]: TermVariabe fooThread1of1ForFork1_~a.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:00:19,637 WARN L315 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_~#second_thread~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:00:19,637 WARN L315 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_~#second_thread~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:00:19,638 WARN L315 ript$VariableManager]: TermVariabe fooThread1of1ForFork1_~a.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:00:19,638 WARN L315 ript$VariableManager]: TermVariabe fooThread1of1ForFork1_~a.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:00:19,638 WARN L315 ript$VariableManager]: TermVariabe fooThread1of1ForFork1_~param~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:00:19,638 WARN L315 ript$VariableManager]: TermVariabe fooThread1of1ForFork1_~param~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:00:19,638 WARN L315 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_~#ret~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:00:19,639 WARN L315 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_~#ret~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:00:19,639 WARN L315 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_~#second_thread~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:00:19,639 WARN L315 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_~#second_thread~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:00:19,640 WARN L315 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:00:19,640 WARN L315 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_~#second_thread~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:00:19,640 WARN L315 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_~#second_thread~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:00:19,640 WARN L315 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_#t~mem3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:00:19,641 WARN L315 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_~#ret~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:00:19,641 WARN L315 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_~#ret~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:00:19,641 WARN L315 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_#t~nondet4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:00:19,642 WARN L315 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_#t~nondet4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:00:19,642 WARN L315 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_#t~mem3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:00:19,642 WARN L315 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_#t~nondet4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:00:19,642 WARN L315 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_#t~nondet4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:00:19,643 WARN L315 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_~#ret~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:00:19,643 WARN L315 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_~#ret~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:00:19,643 WARN L315 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_#t~mem5.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:00:19,643 WARN L315 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_#t~mem5.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:00:19,644 WARN L315 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_#t~mem5.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:00:19,644 WARN L315 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_#t~mem5.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:00:19,644 WARN L315 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:00:19,644 WARN L315 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:00:19,644 WARN L315 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_#t~mem5.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:00:19,645 WARN L315 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_#t~mem5.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:00:19,645 WARN L315 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_~#second_thread~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:00:19,645 WARN L315 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_~#second_thread~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:00:19,645 WARN L315 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_~#second_thread~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:00:19,645 WARN L315 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_~#ret~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:00:19,646 WARN L315 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_~#ret~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:00:19,646 WARN L315 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_~#ret~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:00:19,650 WARN L315 ript$VariableManager]: TermVariabe |barThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:00:19,650 WARN L315 ript$VariableManager]: TermVariabe |barThread1of1ForFork0_#t~mem0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:00:19,650 WARN L315 ript$VariableManager]: TermVariabe |barThread1of1ForFork0_#t~mem1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:00:19,650 WARN L315 ript$VariableManager]: TermVariabe barThread1of1ForFork0_~b.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:00:19,651 WARN L315 ript$VariableManager]: TermVariabe barThread1of1ForFork0_~c~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:00:19,651 WARN L315 ript$VariableManager]: TermVariabe barThread1of1ForFork0_~c~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:00:19,651 WARN L315 ript$VariableManager]: TermVariabe barThread1of1ForFork0_~val~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:00:19,651 WARN L315 ript$VariableManager]: TermVariabe barThread1of1ForFork0_~b.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:00:19,652 WARN L315 ript$VariableManager]: TermVariabe |barThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:00:19,663 WARN L315 ript$VariableManager]: TermVariabe fooThread1of1ForFork1_~a.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:00:19,663 WARN L315 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_#t~mem3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:00:19,663 WARN L315 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_~#ret~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:00:19,664 WARN L315 ript$VariableManager]: TermVariabe fooThread1of1ForFork1_~param~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:00:19,664 WARN L315 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_#t~nondet4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:00:19,664 WARN L315 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_#t~mem5.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:00:19,665 WARN L315 ript$VariableManager]: TermVariabe fooThread1of1ForFork1_~a.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:00:19,665 WARN L315 ript$VariableManager]: TermVariabe fooThread1of1ForFork1_~param~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:00:19,665 WARN L315 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:00:19,665 WARN L315 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_~#ret~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:00:19,665 WARN L315 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_~#second_thread~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:00:19,666 WARN L315 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_#t~nondet4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:00:19,666 WARN L315 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_~#second_thread~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:00:19,666 WARN L315 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:00:19,666 WARN L315 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_#t~mem5.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:00:19,667 WARN L315 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:00:19,670 WARN L315 ript$VariableManager]: TermVariabe |barThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:00:19,670 WARN L315 ript$VariableManager]: TermVariabe |barThread1of1ForFork0_#t~mem0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:00:19,670 WARN L315 ript$VariableManager]: TermVariabe |barThread1of1ForFork0_#t~mem1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:00:19,671 WARN L315 ript$VariableManager]: TermVariabe barThread1of1ForFork0_~b.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:00:19,671 WARN L315 ript$VariableManager]: TermVariabe barThread1of1ForFork0_~c~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:00:19,671 WARN L315 ript$VariableManager]: TermVariabe barThread1of1ForFork0_~c~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:00:19,671 WARN L315 ript$VariableManager]: TermVariabe barThread1of1ForFork0_~val~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:00:19,672 WARN L315 ript$VariableManager]: TermVariabe barThread1of1ForFork0_~b.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:00:19,672 WARN L315 ript$VariableManager]: TermVariabe |barThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:00:19,721 INFO L251 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2020-04-18 16:00:19,753 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-04-18 16:00:19,753 INFO L376 AbstractCegarLoop]: Hoare is true [2020-04-18 16:00:19,753 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-04-18 16:00:19,753 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-04-18 16:00:19,754 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-04-18 16:00:19,754 INFO L380 AbstractCegarLoop]: Difference is false [2020-04-18 16:00:19,754 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-04-18 16:00:19,754 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-04-18 16:00:19,785 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 89 places, 83 transitions, 194 flow [2020-04-18 16:00:19,787 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 89 places, 83 transitions, 194 flow [2020-04-18 16:00:19,858 INFO L129 PetriNetUnfolder]: 2/89 cut-off events. [2020-04-18 16:00:19,858 INFO L130 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2020-04-18 16:00:19,865 INFO L80 FinitePrefix]: Finished finitePrefix Result has 102 conditions, 89 events. 2/89 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 54 event pairs, 0 based on Foata normal form. 0/84 useless extension candidates. Maximal degree in co-relation 98. Up to 5 conditions per place. [2020-04-18 16:00:19,872 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 89 places, 83 transitions, 194 flow [2020-04-18 16:00:19,906 INFO L129 PetriNetUnfolder]: 2/89 cut-off events. [2020-04-18 16:00:19,907 INFO L130 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2020-04-18 16:00:19,907 INFO L80 FinitePrefix]: Finished finitePrefix Result has 102 conditions, 89 events. 2/89 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 54 event pairs, 0 based on Foata normal form. 0/84 useless extension candidates. Maximal degree in co-relation 98. Up to 5 conditions per place. [2020-04-18 16:00:19,908 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 334 [2020-04-18 16:00:19,910 INFO L182 etLargeBlockEncoding]: Variable Check. [2020-04-18 16:00:21,241 WARN L192 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 63 [2020-04-18 16:00:21,398 INFO L206 etLargeBlockEncoding]: Checked pairs total: 454 [2020-04-18 16:00:21,399 INFO L214 etLargeBlockEncoding]: Total number of compositions: 61 [2020-04-18 16:00:21,402 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 30 places, 26 transitions, 80 flow [2020-04-18 16:00:21,417 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 56 states. [2020-04-18 16:00:21,420 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states. [2020-04-18 16:00:21,433 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-04-18 16:00:21,433 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 16:00:21,434 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2020-04-18 16:00:21,434 INFO L427 AbstractCegarLoop]: === Iteration 1 === [fooThread1of1ForFork1Err1INUSE_VIOLATION, barErr0ASSERT_VIOLATIONASSERT, fooErr0INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, barErr0ASSERT_VIOLATIONASSERT]=== [2020-04-18 16:00:21,441 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 16:00:21,442 INFO L82 PathProgramCache]: Analyzing trace with hash -149989621, now seen corresponding path program 1 times [2020-04-18 16:00:21,449 INFO L163 FreeRefinementEngine]: Executing refinement strategy MCR [2020-04-18 16:00:21,451 INFO L354 FreeRefinementEngine]: Using trace check StrategyModuleMcr [1147480914] [2020-04-18 16:00:21,469 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 16:00:21,481 INFO L259 McrAutomatonBuilder]: Finished intersection with 8 states and 7 transitions. [2020-04-18 16:00:21,483 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states. [2020-04-18 16:00:21,484 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-04-18 16:00:21,484 INFO L105 Mcr]: ---- MCR iteration 0 ---- [2020-04-18 16:00:21,485 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 16:00:21,486 INFO L82 PathProgramCache]: Analyzing trace with hash -149989621, now seen corresponding path program 2 times [2020-04-18 16:00:21,490 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 16:00:21,490 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1116727945] [2020-04-18 16:00:21,490 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 16:00:21,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 16:00:21,839 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 16:00:21,840 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1116727945] [2020-04-18 16:00:21,841 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 16:00:21,841 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-04-18 16:00:21,842 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 16:00:21,844 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 16:00:21,853 INFO L259 McrAutomatonBuilder]: Finished intersection with 8 states and 7 transitions. [2020-04-18 16:00:21,854 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 16:00:21,903 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 0 times. [2020-04-18 16:00:21,905 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-04-18 16:00:21,906 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-04-18 16:00:21,908 INFO L87 Difference]: Start difference. First operand 8 states. Second operand 8 states. [2020-04-18 16:00:22,050 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 16:00:22,050 INFO L93 Difference]: Finished difference Result 8 states and 7 transitions. [2020-04-18 16:00:22,051 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 7 transitions. [2020-04-18 16:00:22,051 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-04-18 16:00:22,052 INFO L354 FreeRefinementEngine]: Using interpolant generator StrategyModuleMcr [1147480914] [2020-04-18 16:00:22,052 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-04-18 16:00:22,053 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-04-18 16:00:22,053 INFO L156 tionRefinementEngine]: Using interpolant automaton builder StrategyModuleMcr [1147480914] [2020-04-18 16:00:22,055 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-04-18 16:00:22,055 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy MCR [2020-04-18 16:00:22,060 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-04-18 16:00:22,060 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=110, Unknown=0, NotChecked=0, Total=156 [2020-04-18 16:00:22,061 INFO L87 Difference]: Start difference. First operand 56 states. Second operand 8 states. [2020-04-18 16:00:22,198 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 16:00:22,198 INFO L93 Difference]: Finished difference Result 50 states and 83 transitions. [2020-04-18 16:00:22,199 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-04-18 16:00:22,200 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 7 [2020-04-18 16:00:22,200 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 16:00:22,208 INFO L225 Difference]: With dead ends: 50 [2020-04-18 16:00:22,208 INFO L226 Difference]: Without dead ends: 47 [2020-04-18 16:00:22,209 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=46, Invalid=110, Unknown=0, NotChecked=0, Total=156 [2020-04-18 16:00:22,224 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2020-04-18 16:00:22,237 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 47. [2020-04-18 16:00:22,238 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 47 states. [2020-04-18 16:00:22,240 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 79 transitions. [2020-04-18 16:00:22,241 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 79 transitions. Word has length 7 [2020-04-18 16:00:22,241 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 16:00:22,241 INFO L479 AbstractCegarLoop]: Abstraction has 47 states and 79 transitions. [2020-04-18 16:00:22,241 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-04-18 16:00:22,241 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 79 transitions. [2020-04-18 16:00:22,242 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-04-18 16:00:22,242 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 16:00:22,242 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 16:00:22,243 INFO L427 AbstractCegarLoop]: === Iteration 2 === [fooThread1of1ForFork1Err1INUSE_VIOLATION, barErr0ASSERT_VIOLATIONASSERT, fooErr0INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, barErr0ASSERT_VIOLATIONASSERT]=== [2020-04-18 16:00:22,243 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 16:00:22,243 INFO L82 PathProgramCache]: Analyzing trace with hash -1255807394, now seen corresponding path program 1 times [2020-04-18 16:00:22,243 INFO L163 FreeRefinementEngine]: Executing refinement strategy MCR [2020-04-18 16:00:22,244 INFO L354 FreeRefinementEngine]: Using trace check StrategyModuleMcr [1311707551] [2020-04-18 16:00:22,244 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 16:00:22,246 INFO L259 McrAutomatonBuilder]: Finished intersection with 23 states and 32 transitions. [2020-04-18 16:00:22,247 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states. [2020-04-18 16:00:22,247 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-04-18 16:00:22,247 INFO L105 Mcr]: ---- MCR iteration 0 ---- [2020-04-18 16:00:22,248 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 16:00:22,248 INFO L82 PathProgramCache]: Analyzing trace with hash -1255807394, now seen corresponding path program 2 times [2020-04-18 16:00:22,248 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 16:00:22,248 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [432044339] [2020-04-18 16:00:22,249 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 16:00:22,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 16:00:22,417 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 16:00:22,418 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [432044339] [2020-04-18 16:00:22,418 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 16:00:22,418 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-04-18 16:00:22,418 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 16:00:22,421 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 16:00:22,426 INFO L259 McrAutomatonBuilder]: Finished intersection with 16 states and 18 transitions. [2020-04-18 16:00:22,426 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 16:00:22,516 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 0 times. [2020-04-18 16:00:22,517 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-04-18 16:00:22,517 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-04-18 16:00:22,517 INFO L87 Difference]: Start difference. First operand 23 states. Second operand 10 states. [2020-04-18 16:00:22,883 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 16:00:22,883 INFO L93 Difference]: Finished difference Result 28 states and 36 transitions. [2020-04-18 16:00:22,884 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 36 transitions. [2020-04-18 16:00:22,884 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-04-18 16:00:22,885 INFO L105 Mcr]: ---- MCR iteration 1 ---- [2020-04-18 16:00:22,885 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 16:00:22,885 INFO L82 PathProgramCache]: Analyzing trace with hash 1573748830, now seen corresponding path program 3 times [2020-04-18 16:00:22,886 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 16:00:22,886 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1962466574] [2020-04-18 16:00:22,886 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 16:00:22,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 16:00:22,991 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 16:00:22,992 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1962466574] [2020-04-18 16:00:22,992 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 16:00:22,993 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-04-18 16:00:22,993 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 16:00:22,995 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 16:00:23,000 INFO L259 McrAutomatonBuilder]: Finished intersection with 16 states and 18 transitions. [2020-04-18 16:00:23,001 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 16:00:23,164 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 2 times. [2020-04-18 16:00:23,164 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-04-18 16:00:23,165 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=98, Invalid=282, Unknown=0, NotChecked=0, Total=380 [2020-04-18 16:00:23,165 INFO L87 Difference]: Start difference. First operand 28 states and 36 transitions. Second operand 10 states. [2020-04-18 16:00:23,435 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 16:00:23,436 INFO L93 Difference]: Finished difference Result 28 states and 36 transitions. [2020-04-18 16:00:23,436 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 36 transitions. [2020-04-18 16:00:23,436 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-04-18 16:00:23,437 INFO L354 FreeRefinementEngine]: Using interpolant generator StrategyModuleMcr [1311707551] [2020-04-18 16:00:23,437 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-04-18 16:00:23,437 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-04-18 16:00:23,438 INFO L156 tionRefinementEngine]: Using interpolant automaton builder StrategyModuleMcr [1311707551] [2020-04-18 16:00:23,438 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-04-18 16:00:23,438 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy MCR [2020-04-18 16:00:23,439 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-04-18 16:00:23,439 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=148, Invalid=452, Unknown=0, NotChecked=0, Total=600 [2020-04-18 16:00:23,439 INFO L87 Difference]: Start difference. First operand 47 states and 79 transitions. Second operand 15 states. [2020-04-18 16:00:23,898 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 16:00:23,898 INFO L93 Difference]: Finished difference Result 46 states and 73 transitions. [2020-04-18 16:00:23,904 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-04-18 16:00:23,904 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 12 [2020-04-18 16:00:23,904 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 16:00:23,905 INFO L225 Difference]: With dead ends: 46 [2020-04-18 16:00:23,905 INFO L226 Difference]: Without dead ends: 46 [2020-04-18 16:00:23,909 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 12 SyntacticMatches, 3 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 149 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=225, Invalid=645, Unknown=0, NotChecked=0, Total=870 [2020-04-18 16:00:23,909 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2020-04-18 16:00:23,913 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 41. [2020-04-18 16:00:23,913 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 41 states. [2020-04-18 16:00:23,915 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 68 transitions. [2020-04-18 16:00:23,915 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 68 transitions. Word has length 12 [2020-04-18 16:00:23,916 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 16:00:23,916 INFO L479 AbstractCegarLoop]: Abstraction has 41 states and 68 transitions. [2020-04-18 16:00:23,916 INFO L480 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-04-18 16:00:23,916 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 68 transitions. [2020-04-18 16:00:23,917 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-04-18 16:00:23,917 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 16:00:23,917 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 16:00:23,918 INFO L427 AbstractCegarLoop]: === Iteration 3 === [fooThread1of1ForFork1Err1INUSE_VIOLATION, barErr0ASSERT_VIOLATIONASSERT, fooErr0INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, barErr0ASSERT_VIOLATIONASSERT]=== [2020-04-18 16:00:23,918 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 16:00:23,918 INFO L82 PathProgramCache]: Analyzing trace with hash 67837309, now seen corresponding path program 1 times [2020-04-18 16:00:23,918 INFO L163 FreeRefinementEngine]: Executing refinement strategy MCR [2020-04-18 16:00:23,918 INFO L354 FreeRefinementEngine]: Using trace check StrategyModuleMcr [1968509682] [2020-04-18 16:00:23,919 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 16:00:23,920 INFO L259 McrAutomatonBuilder]: Finished intersection with 41 states and 65 transitions. [2020-04-18 16:00:23,920 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states. [2020-04-18 16:00:23,923 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-04-18 16:00:23,923 INFO L105 Mcr]: ---- MCR iteration 0 ---- [2020-04-18 16:00:23,924 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 16:00:23,924 INFO L82 PathProgramCache]: Analyzing trace with hash 67837309, now seen corresponding path program 2 times [2020-04-18 16:00:23,924 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 16:00:23,924 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [281921114] [2020-04-18 16:00:23,925 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 16:00:23,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 16:00:24,271 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 16:00:24,271 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [281921114] [2020-04-18 16:00:24,272 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 16:00:24,272 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2020-04-18 16:00:24,272 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 16:00:24,275 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 16:00:24,280 INFO L259 McrAutomatonBuilder]: Finished intersection with 18 states and 17 transitions. [2020-04-18 16:00:24,280 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 16:00:24,466 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 0 times. [2020-04-18 16:00:24,466 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-04-18 16:00:24,467 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=182, Unknown=0, NotChecked=0, Total=210 [2020-04-18 16:00:24,467 INFO L87 Difference]: Start difference. First operand 41 states. Second operand 15 states. [2020-04-18 16:00:25,360 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 16:00:25,360 INFO L93 Difference]: Finished difference Result 48 states and 72 transitions. [2020-04-18 16:00:25,361 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 72 transitions. [2020-04-18 16:00:25,362 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-04-18 16:00:25,362 INFO L105 Mcr]: ---- MCR iteration 1 ---- [2020-04-18 16:00:25,362 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 16:00:25,363 INFO L82 PathProgramCache]: Analyzing trace with hash -1960936835, now seen corresponding path program 3 times [2020-04-18 16:00:25,363 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 16:00:25,364 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [187307384] [2020-04-18 16:00:25,364 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 16:00:25,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 16:00:25,589 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 16:00:25,589 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [187307384] [2020-04-18 16:00:25,590 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 16:00:25,590 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-04-18 16:00:25,590 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 16:00:25,593 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 16:00:25,599 INFO L259 McrAutomatonBuilder]: Finished intersection with 26 states and 33 transitions. [2020-04-18 16:00:25,600 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 16:00:25,840 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2020-04-18 16:00:25,862 INFO L539 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-04-18 16:00:25,864 INFO L539 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-04-18 16:00:25,870 INFO L619 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-04-18 16:00:25,871 INFO L539 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 2 xjuncts. [2020-04-18 16:00:25,871 INFO L239 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:46, output treesize:20 [2020-04-18 16:00:26,007 INFO L539 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-04-18 16:00:26,010 INFO L539 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-04-18 16:00:26,047 INFO L619 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-04-18 16:00:26,051 INFO L539 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2020-04-18 16:00:26,056 INFO L539 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2020-04-18 16:00:26,073 INFO L619 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-04-18 16:00:26,074 INFO L539 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-2 vars, End of recursive call: 1 dim-0 vars, and 2 xjuncts. [2020-04-18 16:00:26,074 INFO L239 ElimStorePlain]: Needed 5 recursive calls to eliminate 3 variables, input treesize:138, output treesize:74 [2020-04-18 16:00:26,341 INFO L539 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-04-18 16:00:26,346 INFO L539 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-04-18 16:00:26,369 INFO L619 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-04-18 16:00:26,371 INFO L539 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2020-04-18 16:00:26,374 INFO L539 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2020-04-18 16:00:26,391 INFO L619 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-04-18 16:00:26,392 INFO L539 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-2 vars, End of recursive call: 1 dim-0 vars, and 2 xjuncts. [2020-04-18 16:00:26,393 INFO L239 ElimStorePlain]: Needed 5 recursive calls to eliminate 3 variables, input treesize:194, output treesize:130 [2020-04-18 16:00:26,472 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 7 times. [2020-04-18 16:00:26,473 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2020-04-18 16:00:26,474 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=176, Invalid=1306, Unknown=0, NotChecked=0, Total=1482 [2020-04-18 16:00:26,474 INFO L87 Difference]: Start difference. First operand 48 states and 72 transitions. Second operand 20 states. [2020-04-18 16:00:27,691 WARN L192 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 72 [2020-04-18 16:00:27,977 WARN L192 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 69 [2020-04-18 16:00:28,152 WARN L192 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 69 [2020-04-18 16:00:28,663 WARN L192 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 90 [2020-04-18 16:00:28,881 WARN L192 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 79 [2020-04-18 16:00:29,213 WARN L192 SmtUtils]: Spent 201.00 ms on a formula simplification. DAG size of input: 135 DAG size of output: 99 [2020-04-18 16:00:29,499 WARN L192 SmtUtils]: Spent 180.00 ms on a formula simplification. DAG size of input: 130 DAG size of output: 100 [2020-04-18 16:00:29,726 WARN L192 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 88 [2020-04-18 16:00:30,221 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 16:00:30,222 INFO L93 Difference]: Finished difference Result 83 states and 125 transitions. [2020-04-18 16:00:30,222 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states and 125 transitions. [2020-04-18 16:00:30,224 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-04-18 16:00:30,224 INFO L105 Mcr]: ---- MCR iteration 2 ---- [2020-04-18 16:00:30,224 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 16:00:30,225 INFO L82 PathProgramCache]: Analyzing trace with hash 785554787, now seen corresponding path program 4 times [2020-04-18 16:00:30,225 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 16:00:30,225 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [750664117] [2020-04-18 16:00:30,226 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 16:00:30,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 16:00:30,464 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 16:00:30,465 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [750664117] [2020-04-18 16:00:30,465 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 16:00:30,465 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-04-18 16:00:30,465 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 16:00:30,469 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 16:00:30,476 INFO L259 McrAutomatonBuilder]: Finished intersection with 25 states and 31 transitions. [2020-04-18 16:00:30,476 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 16:00:30,624 INFO L539 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-04-18 16:00:30,626 INFO L539 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-04-18 16:00:30,629 INFO L539 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2020-04-18 16:00:30,663 INFO L619 ElimStorePlain]: treesize reduction 34, result has 63.4 percent of original size [2020-04-18 16:00:30,666 INFO L539 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2020-04-18 16:00:30,670 INFO L539 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2020-04-18 16:00:30,681 INFO L619 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-04-18 16:00:30,681 INFO L539 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: and 2 xjuncts. [2020-04-18 16:00:30,682 INFO L239 ElimStorePlain]: Needed 6 recursive calls to eliminate 2 variables, input treesize:141, output treesize:27 [2020-04-18 16:00:30,753 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2020-04-18 16:00:30,922 INFO L539 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-04-18 16:00:30,925 INFO L539 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-04-18 16:00:30,949 INFO L619 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-04-18 16:00:30,951 INFO L539 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2020-04-18 16:00:30,953 INFO L539 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2020-04-18 16:00:30,966 INFO L619 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-04-18 16:00:30,967 INFO L539 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: and 2 xjuncts. [2020-04-18 16:00:30,967 INFO L239 ElimStorePlain]: Needed 5 recursive calls to eliminate 2 variables, input treesize:107, output treesize:43 [2020-04-18 16:00:31,033 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 4 times. [2020-04-18 16:00:31,033 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2020-04-18 16:00:31,035 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=532, Invalid=3500, Unknown=0, NotChecked=0, Total=4032 [2020-04-18 16:00:31,035 INFO L87 Difference]: Start difference. First operand 83 states and 125 transitions. Second operand 18 states. [2020-04-18 16:00:31,739 WARN L192 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 58 [2020-04-18 16:00:32,004 WARN L192 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2020-04-18 16:00:32,283 WARN L192 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 74 [2020-04-18 16:00:32,566 WARN L192 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 86 [2020-04-18 16:00:33,036 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 16:00:33,036 INFO L93 Difference]: Finished difference Result 97 states and 139 transitions. [2020-04-18 16:00:33,036 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 139 transitions. [2020-04-18 16:00:33,037 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-04-18 16:00:33,037 INFO L105 Mcr]: ---- MCR iteration 3 ---- [2020-04-18 16:00:33,038 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 16:00:33,038 INFO L82 PathProgramCache]: Analyzing trace with hash -211343889, now seen corresponding path program 5 times [2020-04-18 16:00:33,038 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 16:00:33,038 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [657967356] [2020-04-18 16:00:33,039 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 16:00:33,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 16:00:33,249 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 16:00:33,249 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [657967356] [2020-04-18 16:00:33,249 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 16:00:33,250 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-04-18 16:00:33,250 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 16:00:33,252 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 16:00:33,256 INFO L259 McrAutomatonBuilder]: Finished intersection with 19 states and 19 transitions. [2020-04-18 16:00:33,256 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 16:00:33,439 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 1 times. [2020-04-18 16:00:33,439 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-04-18 16:00:33,441 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=747, Invalid=4953, Unknown=0, NotChecked=0, Total=5700 [2020-04-18 16:00:33,441 INFO L87 Difference]: Start difference. First operand 97 states and 139 transitions. Second operand 14 states. [2020-04-18 16:00:34,199 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 16:00:34,199 INFO L93 Difference]: Finished difference Result 122 states and 175 transitions. [2020-04-18 16:00:34,199 INFO L276 IsEmpty]: Start isEmpty. Operand 122 states and 175 transitions. [2020-04-18 16:00:34,201 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-04-18 16:00:34,201 INFO L105 Mcr]: ---- MCR iteration 4 ---- [2020-04-18 16:00:34,201 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 16:00:34,201 INFO L82 PathProgramCache]: Analyzing trace with hash 57402539, now seen corresponding path program 6 times [2020-04-18 16:00:34,202 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 16:00:34,202 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1205384724] [2020-04-18 16:00:34,203 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 16:00:34,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 16:00:34,431 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 16:00:34,431 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1205384724] [2020-04-18 16:00:34,431 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 16:00:34,432 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-04-18 16:00:34,432 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 16:00:34,434 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 16:00:34,437 INFO L259 McrAutomatonBuilder]: Finished intersection with 20 states and 21 transitions. [2020-04-18 16:00:34,437 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 16:00:34,500 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 1 times. [2020-04-18 16:00:34,501 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-04-18 16:00:34,503 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=886, Invalid=6086, Unknown=0, NotChecked=0, Total=6972 [2020-04-18 16:00:34,503 INFO L87 Difference]: Start difference. First operand 122 states and 175 transitions. Second operand 14 states. [2020-04-18 16:00:35,272 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 16:00:35,273 INFO L93 Difference]: Finished difference Result 122 states and 175 transitions. [2020-04-18 16:00:35,273 INFO L276 IsEmpty]: Start isEmpty. Operand 122 states and 175 transitions. [2020-04-18 16:00:35,274 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-04-18 16:00:35,274 INFO L354 FreeRefinementEngine]: Using interpolant generator StrategyModuleMcr [1968509682] [2020-04-18 16:00:35,275 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-04-18 16:00:35,275 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2020-04-18 16:00:35,275 INFO L156 tionRefinementEngine]: Using interpolant automaton builder StrategyModuleMcr [1968509682] [2020-04-18 16:00:35,275 INFO L459 AbstractCegarLoop]: Interpolant automaton has 38 states [2020-04-18 16:00:35,275 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy MCR [2020-04-18 16:00:35,276 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 38 interpolants. [2020-04-18 16:00:35,278 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1043, Invalid=7147, Unknown=0, NotChecked=0, Total=8190 [2020-04-18 16:00:35,278 INFO L87 Difference]: Start difference. First operand 41 states and 68 transitions. Second operand 38 states. [2020-04-18 16:00:36,487 WARN L192 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 77 [2020-04-18 16:00:37,231 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 16:00:37,231 INFO L93 Difference]: Finished difference Result 40 states and 67 transitions. [2020-04-18 16:00:37,232 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2020-04-18 16:00:37,232 INFO L78 Accepts]: Start accepts. Automaton has 38 states. Word has length 17 [2020-04-18 16:00:37,232 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 16:00:37,232 INFO L225 Difference]: With dead ends: 40 [2020-04-18 16:00:37,232 INFO L226 Difference]: Without dead ends: 0 [2020-04-18 16:00:37,236 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 180 GetRequests, 80 SyntacticMatches, 0 SemanticMatches, 100 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2544 ImplicationChecksByTransitivity, 6.9s TimeCoverageRelationStatistics Valid=1477, Invalid=8825, Unknown=0, NotChecked=0, Total=10302 [2020-04-18 16:00:37,236 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-04-18 16:00:37,237 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-04-18 16:00:37,237 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-04-18 16:00:37,237 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-04-18 16:00:37,237 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 17 [2020-04-18 16:00:37,237 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 16:00:37,237 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-04-18 16:00:37,237 INFO L480 AbstractCegarLoop]: Interpolant automaton has 38 states. [2020-04-18 16:00:37,237 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-04-18 16:00:37,237 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-04-18 16:00:37,241 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.04 04:00:37 BasicIcfg [2020-04-18 16:00:37,241 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-04-18 16:00:37,243 INFO L168 Benchmark]: Toolchain (without parser) took 18477.57 ms. Allocated memory was 138.9 MB in the beginning and 362.3 MB in the end (delta: 223.3 MB). Free memory was 100.1 MB in the beginning and 163.3 MB in the end (delta: -63.3 MB). Peak memory consumption was 160.1 MB. Max. memory is 7.1 GB. [2020-04-18 16:00:37,243 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 138.9 MB. Free memory was 120.8 MB in the beginning and 120.6 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. [2020-04-18 16:00:37,244 INFO L168 Benchmark]: CACSL2BoogieTranslator took 323.64 ms. Allocated memory was 138.9 MB in the beginning and 203.9 MB in the end (delta: 65.0 MB). Free memory was 98.2 MB in the beginning and 181.3 MB in the end (delta: -83.1 MB). Peak memory consumption was 21.9 MB. Max. memory is 7.1 GB. [2020-04-18 16:00:37,245 INFO L168 Benchmark]: Boogie Procedure Inliner took 36.36 ms. Allocated memory is still 203.9 MB. Free memory was 181.3 MB in the beginning and 179.3 MB in the end (delta: 1.9 MB). Peak memory consumption was 1.9 MB. Max. memory is 7.1 GB. [2020-04-18 16:00:37,246 INFO L168 Benchmark]: Boogie Preprocessor took 24.54 ms. Allocated memory is still 203.9 MB. Free memory was 179.3 MB in the beginning and 178.0 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. [2020-04-18 16:00:37,247 INFO L168 Benchmark]: RCFGBuilder took 400.05 ms. Allocated memory is still 203.9 MB. Free memory was 178.0 MB in the beginning and 156.2 MB in the end (delta: 21.9 MB). Peak memory consumption was 21.9 MB. Max. memory is 7.1 GB. [2020-04-18 16:00:37,247 INFO L168 Benchmark]: TraceAbstraction took 17666.12 ms. Allocated memory was 203.9 MB in the beginning and 362.3 MB in the end (delta: 158.3 MB). Free memory was 155.5 MB in the beginning and 163.3 MB in the end (delta: -7.8 MB). Peak memory consumption was 150.5 MB. Max. memory is 7.1 GB. [2020-04-18 16:00:37,251 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 138.9 MB. Free memory was 120.8 MB in the beginning and 120.6 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 323.64 ms. Allocated memory was 138.9 MB in the beginning and 203.9 MB in the end (delta: 65.0 MB). Free memory was 98.2 MB in the beginning and 181.3 MB in the end (delta: -83.1 MB). Peak memory consumption was 21.9 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 36.36 ms. Allocated memory is still 203.9 MB. Free memory was 181.3 MB in the beginning and 179.3 MB in the end (delta: 1.9 MB). Peak memory consumption was 1.9 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 24.54 ms. Allocated memory is still 203.9 MB. Free memory was 179.3 MB in the beginning and 178.0 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 400.05 ms. Allocated memory is still 203.9 MB. Free memory was 178.0 MB in the beginning and 156.2 MB in the end (delta: 21.9 MB). Peak memory consumption was 21.9 MB. Max. memory is 7.1 GB. * TraceAbstraction took 17666.12 ms. Allocated memory was 203.9 MB in the beginning and 362.3 MB in the end (delta: 158.3 MB). Free memory was 155.5 MB in the beginning and 163.3 MB in the end (delta: -7.8 MB). Peak memory consumption was 150.5 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 1.6s, 89 ProgramPointsBefore, 30 ProgramPointsAfterwards, 83 TransitionsBefore, 26 TransitionsAfterwards, 334 CoEnabledTransitionPairs, 6 FixpointIterations, 18 TrivialSequentialCompositions, 43 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 151 VarBasedMoverChecksPositive, 12 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 0 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 0 MoverChecksTotal, 454 CheckedPairsTotal, 61 TotalNumberOfCompositions - PositiveResult [Line: 19]: assertion always holds For all program executions holds that assertion always holds at this location - PositiveResult [Line: 45]: assertion always holds For all program executions holds that assertion always holds at this location - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 69 locations, 2 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 17.4s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 2.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.6s, HoareTripleCheckerStatistics: 28 SDtfs, 182 SDslu, 70 SDs, 0 SdLazy, 1065 SolverSat, 123 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 239 GetRequests, 97 SyntacticMatches, 3 SemanticMatches, 139 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2700 ImplicationChecksByTransitivity, 7.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=56occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 5 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: No data available, 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...