/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe-New_States.epf -i ../../../trunk/examples/svcomp/pthread-divine/condvar.i -------------------------------------------------------------------------------- This is Ultimate 0.2.0-60729f1 [2020-11-12 13:01:48,202 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-12 13:01:48,205 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-12 13:01:48,268 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-12 13:01:48,268 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-12 13:01:48,270 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-12 13:01:48,272 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-12 13:01:48,275 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-12 13:01:48,277 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-12 13:01:48,279 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-12 13:01:48,280 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-12 13:01:48,282 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-12 13:01:48,283 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-12 13:01:48,284 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-12 13:01:48,286 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-12 13:01:48,288 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-12 13:01:48,289 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-12 13:01:48,291 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-12 13:01:48,293 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-12 13:01:48,295 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-12 13:01:48,298 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-12 13:01:48,299 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-12 13:01:48,301 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-12 13:01:48,302 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-12 13:01:48,306 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-12 13:01:48,306 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-12 13:01:48,307 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-12 13:01:48,308 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-12 13:01:48,309 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-12 13:01:48,310 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-12 13:01:48,311 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-12 13:01:48,312 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-12 13:01:48,313 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-12 13:01:48,314 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-12 13:01:48,316 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-12 13:01:48,316 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-12 13:01:48,317 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-12 13:01:48,317 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-12 13:01:48,318 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-12 13:01:48,319 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-12 13:01:48,320 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-12 13:01:48,325 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-NoLbe-New_States.epf [2020-11-12 13:01:48,358 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-12 13:01:48,359 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-12 13:01:48,361 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-12 13:01:48,362 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-12 13:01:48,362 INFO L138 SettingsManager]: * Use SBE=true [2020-11-12 13:01:48,362 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-12 13:01:48,362 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-12 13:01:48,363 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-12 13:01:48,363 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-12 13:01:48,363 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-12 13:01:48,364 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-12 13:01:48,364 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-12 13:01:48,364 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-12 13:01:48,365 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-12 13:01:48,365 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-12 13:01:48,365 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-12 13:01:48,365 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-12 13:01:48,366 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-12 13:01:48,366 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-12 13:01:48,366 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-12 13:01:48,367 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-12 13:01:48,367 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-12 13:01:48,367 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-12 13:01:48,368 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-12 13:01:48,368 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-12 13:01:48,368 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-12 13:01:48,368 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-12 13:01:48,369 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2020-11-12 13:01:48,369 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-12 13:01:48,369 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-11-12 13:01:48,370 INFO L138 SettingsManager]: * Sleep set reduction in concurrent analysis=NEW_STATES WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-11-12 13:01:48,839 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-12 13:01:48,880 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-12 13:01:48,883 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-12 13:01:48,885 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-12 13:01:48,886 INFO L275 PluginConnector]: CDTParser initialized [2020-11-12 13:01:48,887 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-divine/condvar.i [2020-11-12 13:01:48,967 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c5b21b555/2f937f7a961e4db9ac71ceb697fa0c61/FLAG211598ad1 [2020-11-12 13:01:49,720 INFO L306 CDTParser]: Found 1 translation units. [2020-11-12 13:01:49,721 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-divine/condvar.i [2020-11-12 13:01:49,742 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c5b21b555/2f937f7a961e4db9ac71ceb697fa0c61/FLAG211598ad1 [2020-11-12 13:01:49,961 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c5b21b555/2f937f7a961e4db9ac71ceb697fa0c61 [2020-11-12 13:01:49,964 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-12 13:01:49,972 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-11-12 13:01:49,974 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-12 13:01:49,974 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-12 13:01:49,978 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-12 13:01:49,979 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 01:01:49" (1/1) ... [2020-11-12 13:01:49,983 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3290611e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 01:01:49, skipping insertion in model container [2020-11-12 13:01:49,983 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 01:01:49" (1/1) ... [2020-11-12 13:01:49,992 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-12 13:01:50,035 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-12 13:01:50,192 WARN L612 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2020-11-12 13:01:50,515 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-12 13:01:50,546 INFO L203 MainTranslator]: Completed pre-run [2020-11-12 13:01:50,574 WARN L612 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2020-11-12 13:01:50,648 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-12 13:01:50,837 INFO L208 MainTranslator]: Completed translation [2020-11-12 13:01:50,838 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 01:01:50 WrapperNode [2020-11-12 13:01:50,838 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-12 13:01:50,840 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-12 13:01:50,840 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-12 13:01:50,840 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-12 13:01:50,850 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 01:01:50" (1/1) ... [2020-11-12 13:01:50,867 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 01:01:50" (1/1) ... [2020-11-12 13:01:50,896 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-12 13:01:50,897 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-12 13:01:50,898 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-12 13:01:50,898 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-12 13:01:50,909 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 01:01:50" (1/1) ... [2020-11-12 13:01:50,909 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 01:01:50" (1/1) ... [2020-11-12 13:01:50,913 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 01:01:50" (1/1) ... [2020-11-12 13:01:50,913 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 01:01:50" (1/1) ... [2020-11-12 13:01:50,919 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 01:01:50" (1/1) ... [2020-11-12 13:01:50,924 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 01:01:50" (1/1) ... [2020-11-12 13:01:50,927 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 01:01:50" (1/1) ... [2020-11-12 13:01:50,930 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-12 13:01:50,931 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-12 13:01:50,931 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-12 13:01:50,931 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-12 13:01:50,932 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 01:01:50" (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 [2020-11-12 13:01:51,020 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-11-12 13:01:51,020 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-12 13:01:51,020 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2020-11-12 13:01:51,021 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-12 13:01:51,021 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-12 13:01:51,021 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-12 13:01:51,021 INFO L130 BoogieDeclarations]: Found specification of procedure thread [2020-11-12 13:01:51,021 INFO L138 BoogieDeclarations]: Found implementation of procedure thread [2020-11-12 13:01:51,022 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-12 13:01:51,022 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-12 13:01:51,024 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-11-12 13:01:51,577 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-12 13:01:51,577 INFO L298 CfgBuilder]: Removed 8 assume(true) statements. [2020-11-12 13:01:51,579 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 01:01:51 BoogieIcfgContainer [2020-11-12 13:01:51,580 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-12 13:01:51,582 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-12 13:01:51,582 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-12 13:01:51,586 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-12 13:01:51,586 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 01:01:49" (1/3) ... [2020-11-12 13:01:51,587 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3a4ae418 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 01:01:51, skipping insertion in model container [2020-11-12 13:01:51,588 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 01:01:50" (2/3) ... [2020-11-12 13:01:51,588 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3a4ae418 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 01:01:51, skipping insertion in model container [2020-11-12 13:01:51,588 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 01:01:51" (3/3) ... [2020-11-12 13:01:51,590 INFO L111 eAbstractionObserver]: Analyzing ICFG condvar.i [2020-11-12 13:01:51,609 WARN L168 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-11-12 13:01:51,609 INFO L179 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-12 13:01:51,614 INFO L191 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-12 13:01:51,615 INFO L351 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-11-12 13:01:51,650 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 13:01:51,650 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 13:01:51,651 WARN L313 ript$VariableManager]: TermVariabe threadThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 13:01:51,651 WARN L313 ript$VariableManager]: TermVariabe threadThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 13:01:51,651 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 13:01:51,651 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 13:01:51,652 WARN L313 ript$VariableManager]: TermVariabe threadThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 13:01:51,652 WARN L313 ript$VariableManager]: TermVariabe threadThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 13:01:51,652 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 13:01:51,652 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 13:01:51,653 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 13:01:51,653 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 13:01:51,654 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_reach_error_#t~nondet5.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 13:01:51,654 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_reach_error_#t~nondet5.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 13:01:51,654 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_reach_error_#t~nondet5.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 13:01:51,654 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_reach_error_#t~nondet5.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 13:01:51,655 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#t~nondet7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 13:01:51,655 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#t~nondet7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 13:01:51,655 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 13:01:51,656 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 13:01:51,656 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 13:01:51,656 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 13:01:51,656 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#t~nondet7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 13:01:51,657 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#t~nondet7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 13:01:51,657 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_reach_error_#t~nondet5.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 13:01:51,657 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_reach_error_#t~nondet5.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 13:01:51,657 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_reach_error_#t~nondet5.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 13:01:51,658 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_reach_error_#t~nondet5.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 13:01:51,660 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_reach_error_#t~nondet5.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 13:01:51,660 WARN L313 ript$VariableManager]: TermVariabe threadThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 13:01:51,661 WARN L313 ript$VariableManager]: TermVariabe threadThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 13:01:51,661 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#t~nondet7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 13:01:51,661 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 13:01:51,661 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_reach_error_#t~nondet5.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 13:01:51,661 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 13:01:51,662 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 13:01:51,676 INFO L149 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2020-11-12 13:01:51,690 INFO L253 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2020-11-12 13:01:51,717 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-12 13:01:51,718 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-12 13:01:51,718 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-12 13:01:51,718 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-12 13:01:51,718 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-12 13:01:51,719 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-12 13:01:51,719 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-12 13:01:51,719 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-12 13:01:51,732 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 71 places, 73 transitions, 154 flow [2020-11-12 13:01:51,759 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 211 states, 209 states have (on average 2.047846889952153) internal successors, (428), 210 states have internal predecessors, (428), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-12 13:01:51,889 WARN L455 BasicCegarLoop]: Sleep Set Reduction Time: 126ms [2020-11-12 13:01:51,890 WARN L456 BasicCegarLoop]: Sleep set: input automaton has 211 states, 209 states have (on average 2.047846889952153) internal successors, (428), 210 states have internal predecessors, (428), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-12 13:01:51,894 WARN L457 BasicCegarLoop]: Sleep set: output automaton has 773 states, 673 states have (on average 1.389301634472511) internal successors, (935), 772 states have internal predecessors, (935), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-12 13:01:51,898 INFO L276 IsEmpty]: Start isEmpty. Operand has 773 states, 673 states have (on average 1.389301634472511) internal successors, (935), 772 states have internal predecessors, (935), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-12 13:01:51,905 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2020-11-12 13:01:51,905 INFO L486 BasicCegarLoop]: Found error trace [2020-11-12 13:01:51,906 INFO L494 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-12 13:01:51,907 INFO L429 AbstractCegarLoop]: === Iteration 1 === [threadErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, threadErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-12 13:01:51,913 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-12 13:01:51,914 INFO L82 PathProgramCache]: Analyzing trace with hash -556346154, now seen corresponding path program 1 times [2020-11-12 13:01:51,925 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-12 13:01:51,925 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1466106607] [2020-11-12 13:01:51,926 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-12 13:01:52,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-12 13:01:52,250 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-12 13:01:52,251 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1466106607] [2020-11-12 13:01:52,252 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-12 13:01:52,253 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-12 13:01:52,254 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1278508047] [2020-11-12 13:01:52,257 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-12 13:01:52,258 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-12 13:01:52,274 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-12 13:01:52,275 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-12 13:01:52,279 INFO L87 Difference]: Start difference. First operand has 773 states, 673 states have (on average 1.389301634472511) internal successors, (935), 772 states have internal predecessors, (935), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-12 13:01:52,317 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-12 13:01:52,317 INFO L93 Difference]: Finished difference Result 145 states and 163 transitions. [2020-11-12 13:01:52,318 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-12 13:01:52,320 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 43 [2020-11-12 13:01:52,320 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-12 13:01:52,330 INFO L225 Difference]: With dead ends: 145 [2020-11-12 13:01:52,330 INFO L226 Difference]: Without dead ends: 58 [2020-11-12 13:01:52,332 INFO L749 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-12 13:01:52,353 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states. [2020-11-12 13:01:52,371 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 56. [2020-11-12 13:01:52,373 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 56 states, 55 states have (on average 1.0363636363636364) internal successors, (57), 55 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-12 13:01:52,374 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 57 transitions. [2020-11-12 13:01:52,376 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 57 transitions. Word has length 43 [2020-11-12 13:01:52,377 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-12 13:01:52,377 INFO L481 AbstractCegarLoop]: Abstraction has 56 states and 57 transitions. [2020-11-12 13:01:52,377 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-12 13:01:52,377 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 57 transitions. [2020-11-12 13:01:52,379 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2020-11-12 13:01:52,379 INFO L486 BasicCegarLoop]: Found error trace [2020-11-12 13:01:52,380 INFO L494 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-12 13:01:52,380 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-12 13:01:52,380 INFO L429 AbstractCegarLoop]: === Iteration 2 === [threadErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, threadErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-12 13:01:52,381 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-12 13:01:52,382 INFO L82 PathProgramCache]: Analyzing trace with hash 1983400177, now seen corresponding path program 1 times [2020-11-12 13:01:52,382 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-12 13:01:52,382 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1070411283] [2020-11-12 13:01:52,383 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-12 13:01:52,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-12 13:01:52,517 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-12 13:01:52,518 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1070411283] [2020-11-12 13:01:52,521 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-12 13:01:52,521 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-12 13:01:52,522 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [627466330] [2020-11-12 13:01:52,524 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-12 13:01:52,529 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-12 13:01:52,530 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-12 13:01:52,531 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-12 13:01:52,532 INFO L87 Difference]: Start difference. First operand 56 states and 57 transitions. Second operand has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-12 13:01:52,585 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-12 13:01:52,585 INFO L93 Difference]: Finished difference Result 60 states and 61 transitions. [2020-11-12 13:01:52,588 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-12 13:01:52,588 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2020-11-12 13:01:52,589 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-12 13:01:52,590 INFO L225 Difference]: With dead ends: 60 [2020-11-12 13:01:52,591 INFO L226 Difference]: Without dead ends: 60 [2020-11-12 13:01:52,593 INFO L749 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-12 13:01:52,595 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60 states. [2020-11-12 13:01:52,606 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60 to 57. [2020-11-12 13:01:52,607 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 57 states, 56 states have (on average 1.0357142857142858) internal successors, (58), 56 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-12 13:01:52,609 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 58 transitions. [2020-11-12 13:01:52,610 INFO L78 Accepts]: Start accepts. Automaton has 57 states and 58 transitions. Word has length 47 [2020-11-12 13:01:52,611 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-12 13:01:52,611 INFO L481 AbstractCegarLoop]: Abstraction has 57 states and 58 transitions. [2020-11-12 13:01:52,612 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-12 13:01:52,612 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 58 transitions. [2020-11-12 13:01:52,616 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2020-11-12 13:01:52,616 INFO L486 BasicCegarLoop]: Found error trace [2020-11-12 13:01:52,617 INFO L494 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-12 13:01:52,617 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-12 13:01:52,617 INFO L429 AbstractCegarLoop]: === Iteration 3 === [threadErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, threadErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-12 13:01:52,618 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-12 13:01:52,621 INFO L82 PathProgramCache]: Analyzing trace with hash 1120804920, now seen corresponding path program 1 times [2020-11-12 13:01:52,621 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-12 13:01:52,621 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [532010287] [2020-11-12 13:01:52,622 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-12 13:01:52,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-12 13:01:52,776 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-12 13:01:52,776 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [532010287] [2020-11-12 13:01:52,777 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1191377382] [2020-11-12 13:01:52,777 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 [2020-11-12 13:01:52,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-12 13:01:52,931 INFO L263 TraceCheckSpWp]: Trace formula consists of 132 conjuncts, 4 conjunts are in the unsatisfiable core [2020-11-12 13:01:52,938 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-12 13:01:53,035 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-12 13:01:53,035 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-11-12 13:01:53,036 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2020-11-12 13:01:53,036 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [679920993] [2020-11-12 13:01:53,037 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-11-12 13:01:53,037 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-12 13:01:53,038 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-11-12 13:01:53,038 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-11-12 13:01:53,039 INFO L87 Difference]: Start difference. First operand 57 states and 58 transitions. Second operand has 7 states, 7 states have (on average 8.142857142857142) internal successors, (57), 7 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-12 13:01:53,139 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-12 13:01:53,140 INFO L93 Difference]: Finished difference Result 65 states and 66 transitions. [2020-11-12 13:01:53,140 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-12 13:01:53,141 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.142857142857142) internal successors, (57), 7 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 52 [2020-11-12 13:01:53,141 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-12 13:01:53,142 INFO L225 Difference]: With dead ends: 65 [2020-11-12 13:01:53,143 INFO L226 Difference]: Without dead ends: 65 [2020-11-12 13:01:53,143 INFO L749 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 51 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2020-11-12 13:01:53,144 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65 states. [2020-11-12 13:01:53,149 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65 to 62. [2020-11-12 13:01:53,150 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 62 states, 61 states have (on average 1.0327868852459017) internal successors, (63), 61 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-12 13:01:53,151 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 63 transitions. [2020-11-12 13:01:53,151 INFO L78 Accepts]: Start accepts. Automaton has 62 states and 63 transitions. Word has length 52 [2020-11-12 13:01:53,151 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-12 13:01:53,152 INFO L481 AbstractCegarLoop]: Abstraction has 62 states and 63 transitions. [2020-11-12 13:01:53,152 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 8.142857142857142) internal successors, (57), 7 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-12 13:01:53,152 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 63 transitions. [2020-11-12 13:01:53,153 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2020-11-12 13:01:53,154 INFO L486 BasicCegarLoop]: Found error trace [2020-11-12 13:01:53,154 INFO L494 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-12 13:01:53,367 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2020-11-12 13:01:53,368 INFO L429 AbstractCegarLoop]: === Iteration 4 === [threadErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, threadErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-12 13:01:53,369 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-12 13:01:53,370 INFO L82 PathProgramCache]: Analyzing trace with hash 1718533457, now seen corresponding path program 2 times [2020-11-12 13:01:53,370 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-12 13:01:53,371 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2038083679] [2020-11-12 13:01:53,371 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-12 13:01:53,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-12 13:01:53,568 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-12 13:01:53,569 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2038083679] [2020-11-12 13:01:53,570 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [922598122] [2020-11-12 13:01:53,570 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 [2020-11-12 13:01:53,704 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2020-11-12 13:01:53,704 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-11-12 13:01:53,706 INFO L263 TraceCheckSpWp]: Trace formula consists of 140 conjuncts, 6 conjunts are in the unsatisfiable core [2020-11-12 13:01:53,709 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-12 13:01:53,772 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-12 13:01:53,773 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-11-12 13:01:53,773 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 9 [2020-11-12 13:01:53,774 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2085005356] [2020-11-12 13:01:53,774 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-11-12 13:01:53,775 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-12 13:01:53,775 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-11-12 13:01:53,776 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2020-11-12 13:01:53,776 INFO L87 Difference]: Start difference. First operand 62 states and 63 transitions. Second operand has 9 states, 9 states have (on average 6.888888888888889) internal successors, (62), 9 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-12 13:01:53,969 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-12 13:01:53,970 INFO L93 Difference]: Finished difference Result 70 states and 71 transitions. [2020-11-12 13:01:53,973 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-11-12 13:01:53,973 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 6.888888888888889) internal successors, (62), 9 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 57 [2020-11-12 13:01:53,974 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-12 13:01:53,975 INFO L225 Difference]: With dead ends: 70 [2020-11-12 13:01:53,978 INFO L226 Difference]: Without dead ends: 70 [2020-11-12 13:01:53,979 INFO L749 BasicCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=55, Invalid=101, Unknown=0, NotChecked=0, Total=156 [2020-11-12 13:01:53,979 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70 states. [2020-11-12 13:01:53,990 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70 to 67. [2020-11-12 13:01:53,994 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 67 states, 66 states have (on average 1.0303030303030303) internal successors, (68), 66 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-12 13:01:53,995 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 67 states and 68 transitions. [2020-11-12 13:01:53,995 INFO L78 Accepts]: Start accepts. Automaton has 67 states and 68 transitions. Word has length 57 [2020-11-12 13:01:53,996 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-12 13:01:53,996 INFO L481 AbstractCegarLoop]: Abstraction has 67 states and 68 transitions. [2020-11-12 13:01:53,996 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 6.888888888888889) internal successors, (62), 9 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-12 13:01:53,997 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 68 transitions. [2020-11-12 13:01:54,000 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2020-11-12 13:01:54,000 INFO L486 BasicCegarLoop]: Found error trace [2020-11-12 13:01:54,001 INFO L494 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-12 13:01:54,215 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-12 13:01:54,216 INFO L429 AbstractCegarLoop]: === Iteration 5 === [threadErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, threadErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-12 13:01:54,217 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-12 13:01:54,218 INFO L82 PathProgramCache]: Analyzing trace with hash -1705941032, now seen corresponding path program 3 times [2020-11-12 13:01:54,219 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-12 13:01:54,219 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1097703297] [2020-11-12 13:01:54,219 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-12 13:01:54,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-12 13:01:54,423 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-12 13:01:54,423 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1097703297] [2020-11-12 13:01:54,423 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1743338567] [2020-11-12 13:01:54,424 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 [2020-11-12 13:01:54,560 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2020-11-12 13:01:54,561 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-11-12 13:01:54,562 INFO L263 TraceCheckSpWp]: Trace formula consists of 140 conjuncts, 7 conjunts are in the unsatisfiable core [2020-11-12 13:01:54,565 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-12 13:01:54,697 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2020-11-12 13:01:54,698 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-11-12 13:01:54,698 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [9] total 14 [2020-11-12 13:01:54,699 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1403362256] [2020-11-12 13:01:54,699 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-11-12 13:01:54,700 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-12 13:01:54,700 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-11-12 13:01:54,701 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=142, Unknown=0, NotChecked=0, Total=182 [2020-11-12 13:01:54,701 INFO L87 Difference]: Start difference. First operand 67 states and 68 transitions. Second operand has 7 states, 7 states have (on average 8.142857142857142) internal successors, (57), 7 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-12 13:01:54,820 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-12 13:01:54,821 INFO L93 Difference]: Finished difference Result 62 states and 63 transitions. [2020-11-12 13:01:54,821 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-11-12 13:01:54,821 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.142857142857142) internal successors, (57), 7 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 62 [2020-11-12 13:01:54,822 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-12 13:01:54,822 INFO L225 Difference]: With dead ends: 62 [2020-11-12 13:01:54,822 INFO L226 Difference]: Without dead ends: 0 [2020-11-12 13:01:54,823 INFO L749 BasicCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=61, Invalid=245, Unknown=0, NotChecked=0, Total=306 [2020-11-12 13:01:54,823 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-11-12 13:01:54,823 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-11-12 13:01:54,823 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-12 13:01:54,823 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-11-12 13:01:54,824 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 62 [2020-11-12 13:01:54,824 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-12 13:01:54,824 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-12 13:01:54,824 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 8.142857142857142) internal successors, (57), 7 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-12 13:01:54,824 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-11-12 13:01:54,824 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-12 13:01:55,030 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-12 13:01:55,037 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.11 01:01:55 BasicIcfg [2020-11-12 13:01:55,037 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-12 13:01:55,039 INFO L168 Benchmark]: Toolchain (without parser) took 5071.92 ms. Allocated memory is still 302.0 MB. Free memory was 275.9 MB in the beginning and 223.2 MB in the end (delta: 52.6 MB). Peak memory consumption was 55.0 MB. Max. memory is 16.0 GB. [2020-11-12 13:01:55,040 INFO L168 Benchmark]: CDTParser took 0.84 ms. Allocated memory is still 302.0 MB. Free memory was 273.1 MB in the beginning and 273.0 MB in the end (delta: 136.5 kB). There was no memory consumed. Max. memory is 16.0 GB. [2020-11-12 13:01:55,041 INFO L168 Benchmark]: CACSL2BoogieTranslator took 864.91 ms. Allocated memory is still 302.0 MB. Free memory was 275.3 MB in the beginning and 276.5 MB in the end (delta: -1.2 MB). Peak memory consumption was 28.0 MB. Max. memory is 16.0 GB. [2020-11-12 13:01:55,042 INFO L168 Benchmark]: Boogie Procedure Inliner took 57.12 ms. Allocated memory is still 302.0 MB. Free memory was 276.5 MB in the beginning and 274.4 MB in the end (delta: 2.1 MB). There was no memory consumed. Max. memory is 16.0 GB. [2020-11-12 13:01:55,043 INFO L168 Benchmark]: Boogie Preprocessor took 32.95 ms. Allocated memory is still 302.0 MB. Free memory was 274.4 MB in the beginning and 273.3 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2020-11-12 13:01:55,044 INFO L168 Benchmark]: RCFGBuilder took 648.65 ms. Allocated memory is still 302.0 MB. Free memory was 273.3 MB in the beginning and 250.3 MB in the end (delta: 23.1 MB). Peak memory consumption was 23.1 MB. Max. memory is 16.0 GB. [2020-11-12 13:01:55,044 INFO L168 Benchmark]: TraceAbstraction took 3455.59 ms. Allocated memory is still 302.0 MB. Free memory was 250.3 MB in the beginning and 223.2 MB in the end (delta: 27.0 MB). Peak memory consumption was 29.1 MB. Max. memory is 16.0 GB. [2020-11-12 13:01:55,049 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.84 ms. Allocated memory is still 302.0 MB. Free memory was 273.1 MB in the beginning and 273.0 MB in the end (delta: 136.5 kB). There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 864.91 ms. Allocated memory is still 302.0 MB. Free memory was 275.3 MB in the beginning and 276.5 MB in the end (delta: -1.2 MB). Peak memory consumption was 28.0 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 57.12 ms. Allocated memory is still 302.0 MB. Free memory was 276.5 MB in the beginning and 274.4 MB in the end (delta: 2.1 MB). There was no memory consumed. Max. memory is 16.0 GB. * Boogie Preprocessor took 32.95 ms. Allocated memory is still 302.0 MB. Free memory was 274.4 MB in the beginning and 273.3 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * RCFGBuilder took 648.65 ms. Allocated memory is still 302.0 MB. Free memory was 273.3 MB in the beginning and 250.3 MB in the end (delta: 23.1 MB). Peak memory consumption was 23.1 MB. Max. memory is 16.0 GB. * TraceAbstraction took 3455.59 ms. Allocated memory is still 302.0 MB. Free memory was 250.3 MB in the beginning and 223.2 MB in the end (delta: 27.0 MB). Peak memory consumption was 29.1 MB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 696]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 68 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 3.3s, OverallIterations: 5, TraceHistogramMax: 3, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 273 SDtfs, 40 SDslu, 574 SDs, 0 SdLazy, 95 SolverSat, 11 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 205 GetRequests, 169 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 65 ImplicationChecksByTransitivity, 0.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=773occurred 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, 5 MinimizatonAttempts, 11 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 0.9s InterpolantComputationTime, 432 NumberOfCodeBlocks, 427 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 424 ConstructedInterpolants, 0 QuantifiedInterpolants, 32212 SizeOfPredicates, 12 NumberOfNonLiveVariables, 412 ConjunctsInSsa, 17 ConjunctsInUnsatCore, 8 InterpolantComputations, 3 PerfectInterpolantSequences, 18/52 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...