/usr/bin/java -Xmx8000000000 -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/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/pthread-wmm/safe035_rmo.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.2.0-7a177ad [2020-11-09 12:54:45,352 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-09 12:54:45,356 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-09 12:54:45,413 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-09 12:54:45,414 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-09 12:54:45,418 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-09 12:54:45,423 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-09 12:54:45,432 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-09 12:54:45,436 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-09 12:54:45,442 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-09 12:54:45,443 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-09 12:54:45,444 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-09 12:54:45,445 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-09 12:54:45,448 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-09 12:54:45,450 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-09 12:54:45,451 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-09 12:54:45,453 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-09 12:54:45,456 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-09 12:54:45,479 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-09 12:54:45,488 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-09 12:54:45,490 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-09 12:54:45,491 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-09 12:54:45,493 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-09 12:54:45,495 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-09 12:54:45,504 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-09 12:54:45,504 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-09 12:54:45,505 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-09 12:54:45,507 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-09 12:54:45,508 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-09 12:54:45,509 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-09 12:54:45,509 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-09 12:54:45,510 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-09 12:54:45,513 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-09 12:54:45,514 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-09 12:54:45,515 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-09 12:54:45,515 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-09 12:54:45,516 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-09 12:54:45,516 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-09 12:54:45,516 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-09 12:54:45,517 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-09 12:54:45,518 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-09 12:54:45,519 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-11-09 12:54:45,573 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-09 12:54:45,574 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-09 12:54:45,578 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-09 12:54:45,578 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-09 12:54:45,579 INFO L138 SettingsManager]: * Use SBE=true [2020-11-09 12:54:45,579 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-09 12:54:45,579 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-09 12:54:45,579 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-09 12:54:45,580 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-09 12:54:45,580 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-09 12:54:45,581 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-09 12:54:45,582 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-09 12:54:45,582 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-09 12:54:45,582 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-09 12:54:45,582 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-09 12:54:45,582 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-09 12:54:45,583 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-09 12:54:45,583 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-09 12:54:45,583 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-09 12:54:45,583 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-09 12:54:45,584 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-09 12:54:45,584 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-09 12:54:45,584 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-09 12:54:45,585 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-09 12:54:45,585 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-09 12:54:45,585 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-09 12:54:45,585 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-09 12:54:45,586 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-09 12:54:45,586 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-09 12:54:45,586 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-11-09 12:54:46,026 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-09 12:54:46,053 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-09 12:54:46,057 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-09 12:54:46,058 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-09 12:54:46,059 INFO L275 PluginConnector]: CDTParser initialized [2020-11-09 12:54:46,060 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe035_rmo.oepc.i [2020-11-09 12:54:46,133 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/89e97d5f3/8721aabd2d444364b62659194df477a4/FLAGd2648bd27 [2020-11-09 12:54:46,823 INFO L306 CDTParser]: Found 1 translation units. [2020-11-09 12:54:46,824 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe035_rmo.oepc.i [2020-11-09 12:54:46,850 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/89e97d5f3/8721aabd2d444364b62659194df477a4/FLAGd2648bd27 [2020-11-09 12:54:47,080 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/89e97d5f3/8721aabd2d444364b62659194df477a4 [2020-11-09 12:54:47,085 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-09 12:54:47,093 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-11-09 12:54:47,097 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-09 12:54:47,097 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-09 12:54:47,102 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-09 12:54:47,103 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 12:54:47" (1/1) ... [2020-11-09 12:54:47,108 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4c2d07d8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:54:47, skipping insertion in model container [2020-11-09 12:54:47,109 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 12:54:47" (1/1) ... [2020-11-09 12:54:47,118 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-09 12:54:47,184 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-09 12:54:47,584 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-09 12:54:47,594 INFO L203 MainTranslator]: Completed pre-run [2020-11-09 12:54:47,639 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-09 12:54:47,767 INFO L208 MainTranslator]: Completed translation [2020-11-09 12:54:47,768 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:54:47 WrapperNode [2020-11-09 12:54:47,769 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-09 12:54:47,770 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-09 12:54:47,771 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-09 12:54:47,771 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-09 12:54:47,788 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:54:47" (1/1) ... [2020-11-09 12:54:47,832 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:54:47" (1/1) ... [2020-11-09 12:54:47,857 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-09 12:54:47,858 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-09 12:54:47,858 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-09 12:54:47,858 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-09 12:54:47,867 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:54:47" (1/1) ... [2020-11-09 12:54:47,867 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:54:47" (1/1) ... [2020-11-09 12:54:47,870 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:54:47" (1/1) ... [2020-11-09 12:54:47,870 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:54:47" (1/1) ... [2020-11-09 12:54:47,876 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:54:47" (1/1) ... [2020-11-09 12:54:47,878 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:54:47" (1/1) ... [2020-11-09 12:54:47,880 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:54:47" (1/1) ... [2020-11-09 12:54:47,883 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-09 12:54:47,884 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-09 12:54:47,885 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-09 12:54:47,885 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-09 12:54:47,886 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:54:47" (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 [2020-11-09 12:54:47,963 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-09 12:54:47,963 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-11-09 12:54:47,964 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-09 12:54:47,964 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-09 12:54:47,965 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-11-09 12:54:47,965 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-11-09 12:54:47,966 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-11-09 12:54:47,966 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-11-09 12:54:47,967 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-11-09 12:54:47,968 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-11-09 12:54:47,968 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-09 12:54:47,968 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-11-09 12:54:47,968 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-09 12:54:47,968 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-09 12:54:47,970 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-11-09 12:54:48,480 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-09 12:54:48,480 INFO L298 CfgBuilder]: Removed 10 assume(true) statements. [2020-11-09 12:54:48,482 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 12:54:48 BoogieIcfgContainer [2020-11-09 12:54:48,483 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-09 12:54:48,485 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-09 12:54:48,485 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-09 12:54:48,489 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-09 12:54:48,489 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 12:54:47" (1/3) ... [2020-11-09 12:54:48,490 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@391e51ba and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 12:54:48, skipping insertion in model container [2020-11-09 12:54:48,490 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:54:47" (2/3) ... [2020-11-09 12:54:48,490 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@391e51ba and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 12:54:48, skipping insertion in model container [2020-11-09 12:54:48,491 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 12:54:48" (3/3) ... [2020-11-09 12:54:48,492 INFO L111 eAbstractionObserver]: Analyzing ICFG safe035_rmo.oepc.i [2020-11-09 12:54:48,508 WARN L168 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-11-09 12:54:48,509 INFO L179 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-09 12:54:48,512 INFO L191 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-09 12:54:48,513 INFO L351 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-11-09 12:54:48,541 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:54:48,542 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:54:48,542 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:54:48,542 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:54:48,543 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:54:48,543 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:54:48,543 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:54:48,543 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:54:48,544 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:54:48,544 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:54:48,544 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:54:48,544 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:54:48,545 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:54:48,545 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:54:48,545 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:54:48,545 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:54:48,546 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:54:48,546 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:54:48,546 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:54:48,546 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:54:48,547 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:54:48,547 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:54:48,547 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:54:48,547 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:54:48,548 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:54:48,548 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:54:48,548 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:54:48,549 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:54:48,549 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:54:48,549 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:54:48,549 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:54:48,549 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:54:48,550 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:54:48,550 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:54:48,550 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:54:48,551 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:54:48,553 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:54:48,553 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:54:48,554 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:54:48,554 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:54:48,561 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:54:48,561 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:54:48,562 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:54:48,562 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:54:48,566 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:54:48,567 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:54:48,567 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:54:48,567 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:54:48,569 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2020-11-09 12:54:48,581 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-11-09 12:54:48,604 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-09 12:54:48,604 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-09 12:54:48,605 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-09 12:54:48,605 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-09 12:54:48,605 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-09 12:54:48,605 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-09 12:54:48,605 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-09 12:54:48,606 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-09 12:54:48,619 INFO L120 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2020-11-09 12:54:48,621 INFO L135 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 86 places, 79 transitions, 173 flow [2020-11-09 12:54:48,624 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 86 places, 79 transitions, 173 flow [2020-11-09 12:54:48,626 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 86 places, 79 transitions, 173 flow [2020-11-09 12:54:48,672 INFO L129 PetriNetUnfolder]: 3/76 cut-off events. [2020-11-09 12:54:48,672 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-11-09 12:54:48,676 INFO L84 FinitePrefix]: Finished finitePrefix Result has 86 conditions, 76 events. 3/76 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 62 event pairs, 0 based on Foata normal form. 0/72 useless extension candidates. Maximal degree in co-relation 60. Up to 2 conditions per place. [2020-11-09 12:54:48,680 INFO L116 LiptonReduction]: Number of co-enabled transitions 1440 [2020-11-09 12:54:51,684 WARN L194 SmtUtils]: Spent 179.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 72 [2020-11-09 12:54:51,950 WARN L194 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 72 [2020-11-09 12:54:52,337 WARN L194 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 72 [2020-11-09 12:54:52,440 WARN L194 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 72 [2020-11-09 12:54:52,445 INFO L131 LiptonReduction]: Checked pairs total: 2778 [2020-11-09 12:54:52,446 INFO L133 LiptonReduction]: Total number of compositions: 68 [2020-11-09 12:54:52,452 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 32 places, 23 transitions, 61 flow [2020-11-09 12:54:52,485 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 362 states. [2020-11-09 12:54:52,487 INFO L276 IsEmpty]: Start isEmpty. Operand 362 states. [2020-11-09 12:54:52,494 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-11-09 12:54:52,494 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 12:54:52,495 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 12:54:52,496 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 12:54:52,501 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 12:54:52,501 INFO L82 PathProgramCache]: Analyzing trace with hash -345538935, now seen corresponding path program 1 times [2020-11-09 12:54:52,511 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 12:54:52,512 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1379663360] [2020-11-09 12:54:52,512 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 12:54:52,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 12:54:52,687 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-09 12:54:52,688 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1379663360] [2020-11-09 12:54:52,689 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 12:54:52,689 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-09 12:54:52,690 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [729919329] [2020-11-09 12:54:52,694 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-11-09 12:54:52,695 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 12:54:52,710 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-11-09 12:54:52,711 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-09 12:54:52,713 INFO L87 Difference]: Start difference. First operand 362 states. Second operand 2 states. [2020-11-09 12:54:52,767 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 12:54:52,768 INFO L93 Difference]: Finished difference Result 362 states and 1072 transitions. [2020-11-09 12:54:52,769 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-11-09 12:54:52,770 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 8 [2020-11-09 12:54:52,771 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 12:54:52,800 INFO L225 Difference]: With dead ends: 362 [2020-11-09 12:54:52,803 INFO L226 Difference]: Without dead ends: 298 [2020-11-09 12:54:52,805 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-09 12:54:52,836 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 298 states. [2020-11-09 12:54:52,883 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 298 to 298. [2020-11-09 12:54:52,884 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 298 states. [2020-11-09 12:54:52,887 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 298 states to 298 states and 864 transitions. [2020-11-09 12:54:52,889 INFO L78 Accepts]: Start accepts. Automaton has 298 states and 864 transitions. Word has length 8 [2020-11-09 12:54:52,890 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 12:54:52,890 INFO L481 AbstractCegarLoop]: Abstraction has 298 states and 864 transitions. [2020-11-09 12:54:52,890 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-11-09 12:54:52,890 INFO L276 IsEmpty]: Start isEmpty. Operand 298 states and 864 transitions. [2020-11-09 12:54:52,892 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-11-09 12:54:52,892 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 12:54:52,892 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 12:54:52,892 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-09 12:54:52,892 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 12:54:52,893 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 12:54:52,893 INFO L82 PathProgramCache]: Analyzing trace with hash -2121797576, now seen corresponding path program 1 times [2020-11-09 12:54:52,893 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 12:54:52,894 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1445319095] [2020-11-09 12:54:52,894 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 12:54:52,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 12:54:53,005 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-09 12:54:53,006 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1445319095] [2020-11-09 12:54:53,006 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 12:54:53,006 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-09 12:54:53,006 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [648377425] [2020-11-09 12:54:53,007 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-09 12:54:53,008 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 12:54:53,009 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-09 12:54:53,009 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-09 12:54:53,009 INFO L87 Difference]: Start difference. First operand 298 states and 864 transitions. Second operand 4 states. [2020-11-09 12:54:53,037 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 12:54:53,038 INFO L93 Difference]: Finished difference Result 298 states and 816 transitions. [2020-11-09 12:54:53,038 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-09 12:54:53,038 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 9 [2020-11-09 12:54:53,038 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 12:54:53,040 INFO L225 Difference]: With dead ends: 298 [2020-11-09 12:54:53,041 INFO L226 Difference]: Without dead ends: 234 [2020-11-09 12:54:53,041 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-11-09 12:54:53,043 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 234 states. [2020-11-09 12:54:53,056 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 234 to 234. [2020-11-09 12:54:53,056 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 234 states. [2020-11-09 12:54:53,058 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 234 states to 234 states and 640 transitions. [2020-11-09 12:54:53,058 INFO L78 Accepts]: Start accepts. Automaton has 234 states and 640 transitions. Word has length 9 [2020-11-09 12:54:53,058 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 12:54:53,058 INFO L481 AbstractCegarLoop]: Abstraction has 234 states and 640 transitions. [2020-11-09 12:54:53,058 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-09 12:54:53,058 INFO L276 IsEmpty]: Start isEmpty. Operand 234 states and 640 transitions. [2020-11-09 12:54:53,060 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-11-09 12:54:53,060 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 12:54:53,061 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 12:54:53,061 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-09 12:54:53,061 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 12:54:53,061 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 12:54:53,062 INFO L82 PathProgramCache]: Analyzing trace with hash 1060758680, now seen corresponding path program 1 times [2020-11-09 12:54:53,062 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 12:54:53,062 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [30054580] [2020-11-09 12:54:53,062 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 12:54:53,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 12:54:53,132 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-09 12:54:53,132 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [30054580] [2020-11-09 12:54:53,132 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 12:54:53,133 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-09 12:54:53,133 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [558039411] [2020-11-09 12:54:53,133 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-09 12:54:53,133 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 12:54:53,134 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-09 12:54:53,134 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-09 12:54:53,135 INFO L87 Difference]: Start difference. First operand 234 states and 640 transitions. Second operand 4 states. [2020-11-09 12:54:53,215 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 12:54:53,215 INFO L93 Difference]: Finished difference Result 346 states and 916 transitions. [2020-11-09 12:54:53,216 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-09 12:54:53,216 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2020-11-09 12:54:53,216 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 12:54:53,218 INFO L225 Difference]: With dead ends: 346 [2020-11-09 12:54:53,218 INFO L226 Difference]: Without dead ends: 164 [2020-11-09 12:54:53,218 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-11-09 12:54:53,219 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 164 states. [2020-11-09 12:54:53,227 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 164 to 164. [2020-11-09 12:54:53,227 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 164 states. [2020-11-09 12:54:53,228 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 164 states to 164 states and 432 transitions. [2020-11-09 12:54:53,229 INFO L78 Accepts]: Start accepts. Automaton has 164 states and 432 transitions. Word has length 11 [2020-11-09 12:54:53,229 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 12:54:53,229 INFO L481 AbstractCegarLoop]: Abstraction has 164 states and 432 transitions. [2020-11-09 12:54:53,229 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-09 12:54:53,229 INFO L276 IsEmpty]: Start isEmpty. Operand 164 states and 432 transitions. [2020-11-09 12:54:53,231 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-11-09 12:54:53,231 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 12:54:53,231 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 12:54:53,231 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-11-09 12:54:53,231 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 12:54:53,232 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 12:54:53,232 INFO L82 PathProgramCache]: Analyzing trace with hash -1476250237, now seen corresponding path program 1 times [2020-11-09 12:54:53,232 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 12:54:53,232 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1130537947] [2020-11-09 12:54:53,233 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 12:54:53,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 12:54:53,375 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-09 12:54:53,375 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1130537947] [2020-11-09 12:54:53,376 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 12:54:53,376 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-09 12:54:53,376 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [525333521] [2020-11-09 12:54:53,376 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-09 12:54:53,377 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 12:54:53,378 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-09 12:54:53,378 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-09 12:54:53,378 INFO L87 Difference]: Start difference. First operand 164 states and 432 transitions. Second operand 4 states. [2020-11-09 12:54:53,416 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 12:54:53,416 INFO L93 Difference]: Finished difference Result 183 states and 435 transitions. [2020-11-09 12:54:53,421 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-09 12:54:53,421 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 12 [2020-11-09 12:54:53,421 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 12:54:53,422 INFO L225 Difference]: With dead ends: 183 [2020-11-09 12:54:53,422 INFO L226 Difference]: Without dead ends: 131 [2020-11-09 12:54:53,423 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-11-09 12:54:53,423 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 131 states. [2020-11-09 12:54:53,427 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 131 to 131. [2020-11-09 12:54:53,427 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 131 states. [2020-11-09 12:54:53,428 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 131 states to 131 states and 303 transitions. [2020-11-09 12:54:53,428 INFO L78 Accepts]: Start accepts. Automaton has 131 states and 303 transitions. Word has length 12 [2020-11-09 12:54:53,428 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 12:54:53,429 INFO L481 AbstractCegarLoop]: Abstraction has 131 states and 303 transitions. [2020-11-09 12:54:53,429 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-09 12:54:53,429 INFO L276 IsEmpty]: Start isEmpty. Operand 131 states and 303 transitions. [2020-11-09 12:54:53,430 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-11-09 12:54:53,430 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 12:54:53,430 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 12:54:53,430 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-11-09 12:54:53,431 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 12:54:53,431 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 12:54:53,431 INFO L82 PathProgramCache]: Analyzing trace with hash 1073724632, now seen corresponding path program 1 times [2020-11-09 12:54:53,432 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 12:54:53,439 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2001315166] [2020-11-09 12:54:53,439 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 12:54:53,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 12:54:53,523 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-09 12:54:53,523 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2001315166] [2020-11-09 12:54:53,524 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 12:54:53,524 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-09 12:54:53,524 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [643471469] [2020-11-09 12:54:53,525 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-09 12:54:53,525 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 12:54:53,525 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-09 12:54:53,526 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-11-09 12:54:53,526 INFO L87 Difference]: Start difference. First operand 131 states and 303 transitions. Second operand 5 states. [2020-11-09 12:54:53,573 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 12:54:53,573 INFO L93 Difference]: Finished difference Result 118 states and 245 transitions. [2020-11-09 12:54:53,574 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-09 12:54:53,574 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 13 [2020-11-09 12:54:53,574 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 12:54:53,575 INFO L225 Difference]: With dead ends: 118 [2020-11-09 12:54:53,575 INFO L226 Difference]: Without dead ends: 87 [2020-11-09 12:54:53,576 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-11-09 12:54:53,577 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87 states. [2020-11-09 12:54:53,580 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87 to 87. [2020-11-09 12:54:53,580 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 87 states. [2020-11-09 12:54:53,580 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 172 transitions. [2020-11-09 12:54:53,581 INFO L78 Accepts]: Start accepts. Automaton has 87 states and 172 transitions. Word has length 13 [2020-11-09 12:54:53,581 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 12:54:53,586 INFO L481 AbstractCegarLoop]: Abstraction has 87 states and 172 transitions. [2020-11-09 12:54:53,586 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-09 12:54:53,586 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 172 transitions. [2020-11-09 12:54:53,590 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-11-09 12:54:53,590 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 12:54:53,590 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 12:54:53,590 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-11-09 12:54:53,591 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 12:54:53,591 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 12:54:53,591 INFO L82 PathProgramCache]: Analyzing trace with hash 809328863, now seen corresponding path program 1 times [2020-11-09 12:54:53,591 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 12:54:53,591 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1141224668] [2020-11-09 12:54:53,592 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 12:54:53,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 12:54:53,699 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-09 12:54:53,700 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1141224668] [2020-11-09 12:54:53,700 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 12:54:53,701 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-11-09 12:54:53,701 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1323847926] [2020-11-09 12:54:53,701 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-09 12:54:53,701 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 12:54:53,702 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-09 12:54:53,702 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-11-09 12:54:53,703 INFO L87 Difference]: Start difference. First operand 87 states and 172 transitions. Second operand 6 states. [2020-11-09 12:54:53,753 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 12:54:53,754 INFO L93 Difference]: Finished difference Result 76 states and 148 transitions. [2020-11-09 12:54:53,754 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-11-09 12:54:53,754 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 15 [2020-11-09 12:54:53,755 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 12:54:53,755 INFO L225 Difference]: With dead ends: 76 [2020-11-09 12:54:53,755 INFO L226 Difference]: Without dead ends: 67 [2020-11-09 12:54:53,756 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2020-11-09 12:54:53,756 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67 states. [2020-11-09 12:54:53,758 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67 to 67. [2020-11-09 12:54:53,758 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 67 states. [2020-11-09 12:54:53,759 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 67 states and 132 transitions. [2020-11-09 12:54:53,759 INFO L78 Accepts]: Start accepts. Automaton has 67 states and 132 transitions. Word has length 15 [2020-11-09 12:54:53,759 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 12:54:53,759 INFO L481 AbstractCegarLoop]: Abstraction has 67 states and 132 transitions. [2020-11-09 12:54:53,759 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-11-09 12:54:53,760 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 132 transitions. [2020-11-09 12:54:53,761 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-11-09 12:54:53,761 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 12:54:53,761 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 12:54:53,761 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-11-09 12:54:53,761 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 12:54:53,762 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 12:54:53,762 INFO L82 PathProgramCache]: Analyzing trace with hash -1097223765, now seen corresponding path program 1 times [2020-11-09 12:54:53,762 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 12:54:53,762 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1802875929] [2020-11-09 12:54:53,762 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 12:54:53,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 12:54:53,921 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-09 12:54:53,921 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1802875929] [2020-11-09 12:54:53,922 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 12:54:53,922 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-11-09 12:54:53,922 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1628281904] [2020-11-09 12:54:53,923 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-11-09 12:54:53,923 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 12:54:53,923 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-11-09 12:54:53,924 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2020-11-09 12:54:53,924 INFO L87 Difference]: Start difference. First operand 67 states and 132 transitions. Second operand 10 states. [2020-11-09 12:54:54,168 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 12:54:54,168 INFO L93 Difference]: Finished difference Result 108 states and 197 transitions. [2020-11-09 12:54:54,169 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-11-09 12:54:54,169 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 18 [2020-11-09 12:54:54,169 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 12:54:54,170 INFO L225 Difference]: With dead ends: 108 [2020-11-09 12:54:54,170 INFO L226 Difference]: Without dead ends: 57 [2020-11-09 12:54:54,171 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=49, Invalid=191, Unknown=0, NotChecked=0, Total=240 [2020-11-09 12:54:54,172 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57 states. [2020-11-09 12:54:54,176 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 46. [2020-11-09 12:54:54,177 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 46 states. [2020-11-09 12:54:54,177 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 78 transitions. [2020-11-09 12:54:54,177 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 78 transitions. Word has length 18 [2020-11-09 12:54:54,177 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 12:54:54,178 INFO L481 AbstractCegarLoop]: Abstraction has 46 states and 78 transitions. [2020-11-09 12:54:54,178 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-11-09 12:54:54,178 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 78 transitions. [2020-11-09 12:54:54,181 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-11-09 12:54:54,182 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 12:54:54,182 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 12:54:54,182 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-11-09 12:54:54,182 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 12:54:54,182 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 12:54:54,183 INFO L82 PathProgramCache]: Analyzing trace with hash -30995043, now seen corresponding path program 2 times [2020-11-09 12:54:54,183 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 12:54:54,183 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [24407875] [2020-11-09 12:54:54,184 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 12:54:54,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 12:54:54,320 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-09 12:54:54,320 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [24407875] [2020-11-09 12:54:54,320 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 12:54:54,321 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-11-09 12:54:54,321 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [850191947] [2020-11-09 12:54:54,321 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-11-09 12:54:54,321 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 12:54:54,322 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-11-09 12:54:54,322 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2020-11-09 12:54:54,322 INFO L87 Difference]: Start difference. First operand 46 states and 78 transitions. Second operand 10 states. [2020-11-09 12:54:54,446 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 12:54:54,447 INFO L93 Difference]: Finished difference Result 60 states and 99 transitions. [2020-11-09 12:54:54,447 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-11-09 12:54:54,447 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 18 [2020-11-09 12:54:54,447 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 12:54:54,448 INFO L225 Difference]: With dead ends: 60 [2020-11-09 12:54:54,448 INFO L226 Difference]: Without dead ends: 52 [2020-11-09 12:54:54,448 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=33, Invalid=99, Unknown=0, NotChecked=0, Total=132 [2020-11-09 12:54:54,449 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2020-11-09 12:54:54,451 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 46. [2020-11-09 12:54:54,451 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 46 states. [2020-11-09 12:54:54,452 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 76 transitions. [2020-11-09 12:54:54,452 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 76 transitions. Word has length 18 [2020-11-09 12:54:54,452 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 12:54:54,452 INFO L481 AbstractCegarLoop]: Abstraction has 46 states and 76 transitions. [2020-11-09 12:54:54,452 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-11-09 12:54:54,453 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 76 transitions. [2020-11-09 12:54:54,453 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-11-09 12:54:54,453 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 12:54:54,453 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 12:54:54,453 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-11-09 12:54:54,454 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 12:54:54,456 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 12:54:54,456 INFO L82 PathProgramCache]: Analyzing trace with hash 1878905967, now seen corresponding path program 3 times [2020-11-09 12:54:54,456 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 12:54:54,456 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2136117903] [2020-11-09 12:54:54,456 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 12:54:54,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 12:54:54,644 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-09 12:54:54,644 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2136117903] [2020-11-09 12:54:54,644 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 12:54:54,645 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-11-09 12:54:54,645 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [99739859] [2020-11-09 12:54:54,645 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-11-09 12:54:54,646 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 12:54:54,646 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-11-09 12:54:54,646 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2020-11-09 12:54:54,647 INFO L87 Difference]: Start difference. First operand 46 states and 76 transitions. Second operand 10 states. [2020-11-09 12:54:54,782 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 12:54:54,782 INFO L93 Difference]: Finished difference Result 61 states and 96 transitions. [2020-11-09 12:54:54,782 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-11-09 12:54:54,783 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 18 [2020-11-09 12:54:54,783 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 12:54:54,783 INFO L225 Difference]: With dead ends: 61 [2020-11-09 12:54:54,783 INFO L226 Difference]: Without dead ends: 51 [2020-11-09 12:54:54,784 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2020-11-09 12:54:54,784 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2020-11-09 12:54:54,787 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 40. [2020-11-09 12:54:54,787 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 40 states. [2020-11-09 12:54:54,787 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 66 transitions. [2020-11-09 12:54:54,787 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 66 transitions. Word has length 18 [2020-11-09 12:54:54,788 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 12:54:54,788 INFO L481 AbstractCegarLoop]: Abstraction has 40 states and 66 transitions. [2020-11-09 12:54:54,790 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-11-09 12:54:54,791 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 66 transitions. [2020-11-09 12:54:54,791 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-11-09 12:54:54,791 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 12:54:54,791 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 12:54:54,792 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-11-09 12:54:54,792 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 12:54:54,792 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 12:54:54,792 INFO L82 PathProgramCache]: Analyzing trace with hash -1731427213, now seen corresponding path program 4 times [2020-11-09 12:54:54,793 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 12:54:54,793 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [263023625] [2020-11-09 12:54:54,793 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 12:54:54,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 12:54:54,875 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-09 12:54:54,876 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [263023625] [2020-11-09 12:54:54,878 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 12:54:54,878 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-09 12:54:54,879 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [658986136] [2020-11-09 12:54:54,879 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-09 12:54:54,879 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 12:54:54,880 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-09 12:54:54,880 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-09 12:54:54,880 INFO L87 Difference]: Start difference. First operand 40 states and 66 transitions. Second operand 5 states. [2020-11-09 12:54:54,905 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 12:54:54,905 INFO L93 Difference]: Finished difference Result 39 states and 65 transitions. [2020-11-09 12:54:54,905 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-09 12:54:54,906 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 18 [2020-11-09 12:54:54,906 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 12:54:54,906 INFO L225 Difference]: With dead ends: 39 [2020-11-09 12:54:54,906 INFO L226 Difference]: Without dead ends: 0 [2020-11-09 12:54:54,907 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-11-09 12:54:54,907 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-11-09 12:54:54,907 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-11-09 12:54:54,907 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-11-09 12:54:54,907 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-11-09 12:54:54,907 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 18 [2020-11-09 12:54:54,907 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 12:54:54,908 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-09 12:54:54,908 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-09 12:54:54,908 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-11-09 12:54:54,908 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-09 12:54:54,908 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-11-09 12:54:54,911 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.11 12:54:54 BasicIcfg [2020-11-09 12:54:54,911 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-09 12:54:54,913 INFO L168 Benchmark]: Toolchain (without parser) took 7825.59 ms. Allocated memory was 151.0 MB in the beginning and 245.4 MB in the end (delta: 94.4 MB). Free memory was 124.4 MB in the beginning and 113.6 MB in the end (delta: 10.8 MB). Peak memory consumption was 106.8 MB. Max. memory is 8.0 GB. [2020-11-09 12:54:54,914 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 151.0 MB. Free memory is still 122.9 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-11-09 12:54:54,914 INFO L168 Benchmark]: CACSL2BoogieTranslator took 672.18 ms. Allocated memory is still 151.0 MB. Free memory was 123.7 MB in the beginning and 129.3 MB in the end (delta: -5.6 MB). Peak memory consumption was 31.8 MB. Max. memory is 8.0 GB. [2020-11-09 12:54:54,915 INFO L168 Benchmark]: Boogie Procedure Inliner took 86.73 ms. Allocated memory is still 151.0 MB. Free memory was 129.3 MB in the beginning and 127.3 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2020-11-09 12:54:54,916 INFO L168 Benchmark]: Boogie Preprocessor took 25.75 ms. Allocated memory is still 151.0 MB. Free memory was 127.3 MB in the beginning and 126.2 MB in the end (delta: 1.0 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2020-11-09 12:54:54,917 INFO L168 Benchmark]: RCFGBuilder took 598.28 ms. Allocated memory is still 151.0 MB. Free memory was 126.2 MB in the beginning and 103.7 MB in the end (delta: 22.5 MB). Peak memory consumption was 23.1 MB. Max. memory is 8.0 GB. [2020-11-09 12:54:54,917 INFO L168 Benchmark]: TraceAbstraction took 6426.65 ms. Allocated memory was 151.0 MB in the beginning and 245.4 MB in the end (delta: 94.4 MB). Free memory was 103.7 MB in the beginning and 113.6 MB in the end (delta: -10.0 MB). Peak memory consumption was 85.5 MB. Max. memory is 8.0 GB. [2020-11-09 12:54:54,921 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 151.0 MB. Free memory is still 122.9 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 672.18 ms. Allocated memory is still 151.0 MB. Free memory was 123.7 MB in the beginning and 129.3 MB in the end (delta: -5.6 MB). Peak memory consumption was 31.8 MB. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 86.73 ms. Allocated memory is still 151.0 MB. Free memory was 129.3 MB in the beginning and 127.3 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 25.75 ms. Allocated memory is still 151.0 MB. Free memory was 127.3 MB in the beginning and 126.2 MB in the end (delta: 1.0 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 598.28 ms. Allocated memory is still 151.0 MB. Free memory was 126.2 MB in the beginning and 103.7 MB in the end (delta: 22.5 MB). Peak memory consumption was 23.1 MB. Max. memory is 8.0 GB. * TraceAbstraction took 6426.65 ms. Allocated memory was 151.0 MB in the beginning and 245.4 MB in the end (delta: 94.4 MB). Free memory was 103.7 MB in the beginning and 113.6 MB in the end (delta: -10.0 MB). Peak memory consumption was 85.5 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 999 VarBasedMoverChecksPositive, 33 VarBasedMoverChecksNegative, 6 SemBasedMoverChecksPositive, 27 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.2s, 82 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 3.8s, 86 PlacesBefore, 32 PlacesAfterwards, 79 TransitionsBefore, 23 TransitionsAfterwards, 1440 CoEnabledTransitionPairs, 6 FixpointIterations, 18 TrivialSequentialCompositions, 36 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 12 ConcurrentYvCompositions, 2 ChoiceCompositions, 68 TotalNumberOfCompositions, 2778 MoverChecksTotal - PositiveResult [Line: 17]: 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 4 procedures, 77 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 6.3s, OverallIterations: 10, TraceHistogramMax: 1, AutomataDifference: 0.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 3.8s, HoareTripleCheckerStatistics: 226 SDtfs, 197 SDslu, 636 SDs, 0 SdLazy, 493 SolverSat, 50 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 65 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=362occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 10 MinimizatonAttempts, 28 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.8s InterpolantComputationTime, 140 NumberOfCodeBlocks, 140 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 130 ConstructedInterpolants, 0 QuantifiedInterpolants, 7989 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 10 InterpolantComputations, 10 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...