/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/safe027_tso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.2.0-7a177ad [2020-11-09 12:51:21,251 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-09 12:51:21,258 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-09 12:51:21,309 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-09 12:51:21,310 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-09 12:51:21,314 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-09 12:51:21,317 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-09 12:51:21,325 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-09 12:51:21,340 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-09 12:51:21,346 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-09 12:51:21,347 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-09 12:51:21,349 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-09 12:51:21,349 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-09 12:51:21,352 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-09 12:51:21,354 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-09 12:51:21,355 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-09 12:51:21,356 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-09 12:51:21,360 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-09 12:51:21,367 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-09 12:51:21,375 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-09 12:51:21,376 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-09 12:51:21,378 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-09 12:51:21,380 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-09 12:51:21,382 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-09 12:51:21,390 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-09 12:51:21,390 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-09 12:51:21,391 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-09 12:51:21,393 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-09 12:51:21,393 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-09 12:51:21,394 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-09 12:51:21,395 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-09 12:51:21,395 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-09 12:51:21,397 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-09 12:51:21,398 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-09 12:51:21,399 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-09 12:51:21,399 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-09 12:51:21,400 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-09 12:51:21,400 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-09 12:51:21,401 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-09 12:51:21,401 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-09 12:51:21,402 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-09 12:51:21,403 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 12:51:21,458 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-09 12:51:21,459 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-09 12:51:21,461 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-09 12:51:21,461 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-09 12:51:21,461 INFO L138 SettingsManager]: * Use SBE=true [2020-11-09 12:51:21,461 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-09 12:51:21,462 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-09 12:51:21,462 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-09 12:51:21,462 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-09 12:51:21,462 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-09 12:51:21,462 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-09 12:51:21,462 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-09 12:51:21,463 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-09 12:51:21,463 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-09 12:51:21,463 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-09 12:51:21,463 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-09 12:51:21,463 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-09 12:51:21,464 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-09 12:51:21,464 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-09 12:51:21,464 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-09 12:51:21,465 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-09 12:51:21,466 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-09 12:51:21,466 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-09 12:51:21,466 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-09 12:51:21,466 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-09 12:51:21,466 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-09 12:51:21,467 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-09 12:51:21,467 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-09 12:51:21,468 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-09 12:51:21,468 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-11-09 12:51:21,879 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-09 12:51:21,906 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-09 12:51:21,909 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-09 12:51:21,911 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-09 12:51:21,911 INFO L275 PluginConnector]: CDTParser initialized [2020-11-09 12:51:21,912 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe027_tso.oepc.i [2020-11-09 12:51:21,990 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bd23f0427/488e633d800a4498b1c1db94d7687162/FLAGdf2877f82 [2020-11-09 12:51:22,748 INFO L306 CDTParser]: Found 1 translation units. [2020-11-09 12:51:22,749 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe027_tso.oepc.i [2020-11-09 12:51:22,765 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bd23f0427/488e633d800a4498b1c1db94d7687162/FLAGdf2877f82 [2020-11-09 12:51:22,995 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bd23f0427/488e633d800a4498b1c1db94d7687162 [2020-11-09 12:51:22,998 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-09 12:51:23,005 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-11-09 12:51:23,007 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-09 12:51:23,007 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-09 12:51:23,011 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-09 12:51:23,012 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 12:51:22" (1/1) ... [2020-11-09 12:51:23,015 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3545d851 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:51:23, skipping insertion in model container [2020-11-09 12:51:23,015 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 12:51:22" (1/1) ... [2020-11-09 12:51:23,023 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-09 12:51:23,064 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-09 12:51:23,454 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-09 12:51:23,464 INFO L203 MainTranslator]: Completed pre-run [2020-11-09 12:51:23,518 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-09 12:51:23,653 INFO L208 MainTranslator]: Completed translation [2020-11-09 12:51:23,655 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:51:23 WrapperNode [2020-11-09 12:51:23,655 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-09 12:51:23,657 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-09 12:51:23,658 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-09 12:51:23,658 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-09 12:51:23,669 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:51:23" (1/1) ... [2020-11-09 12:51:23,709 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:51:23" (1/1) ... [2020-11-09 12:51:23,747 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-09 12:51:23,749 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-09 12:51:23,749 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-09 12:51:23,750 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-09 12:51:23,759 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:51:23" (1/1) ... [2020-11-09 12:51:23,760 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:51:23" (1/1) ... [2020-11-09 12:51:23,777 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:51:23" (1/1) ... [2020-11-09 12:51:23,778 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:51:23" (1/1) ... [2020-11-09 12:51:23,795 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:51:23" (1/1) ... [2020-11-09 12:51:23,799 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:51:23" (1/1) ... [2020-11-09 12:51:23,805 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:51:23" (1/1) ... [2020-11-09 12:51:23,813 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-09 12:51:23,814 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-09 12:51:23,814 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-09 12:51:23,814 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-09 12:51:23,818 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:51:23" (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 12:51:23,908 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-09 12:51:23,908 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-11-09 12:51:23,908 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-09 12:51:23,909 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-09 12:51:23,909 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-11-09 12:51:23,910 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-11-09 12:51:23,910 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-11-09 12:51:23,911 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-11-09 12:51:23,911 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-11-09 12:51:23,912 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-11-09 12:51:23,912 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2020-11-09 12:51:23,913 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2020-11-09 12:51:23,913 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-09 12:51:23,913 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-11-09 12:51:23,913 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-09 12:51:23,913 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-09 12:51:23,915 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 12:51:24,447 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-09 12:51:24,448 INFO L298 CfgBuilder]: Removed 10 assume(true) statements. [2020-11-09 12:51:24,450 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 12:51:24 BoogieIcfgContainer [2020-11-09 12:51:24,450 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-09 12:51:24,452 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-09 12:51:24,452 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-09 12:51:24,455 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-09 12:51:24,456 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 12:51:22" (1/3) ... [2020-11-09 12:51:24,457 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@16e08480 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 12:51:24, skipping insertion in model container [2020-11-09 12:51:24,457 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:51:23" (2/3) ... [2020-11-09 12:51:24,457 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@16e08480 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 12:51:24, skipping insertion in model container [2020-11-09 12:51:24,457 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 12:51:24" (3/3) ... [2020-11-09 12:51:24,459 INFO L111 eAbstractionObserver]: Analyzing ICFG safe027_tso.oepc.i [2020-11-09 12:51:24,476 WARN L168 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-11-09 12:51:24,476 INFO L179 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-09 12:51:24,480 INFO L191 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-09 12:51:24,481 INFO L351 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-11-09 12:51:24,525 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:51:24,525 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:51:24,525 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:51:24,526 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:51:24,526 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:51:24,526 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:51:24,526 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:51:24,527 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:51:24,527 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:51:24,527 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:51:24,528 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:51:24,528 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:51:24,528 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:51:24,528 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:51:24,529 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:51:24,529 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:51:24,529 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:51:24,529 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:51:24,530 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:51:24,530 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:51:24,530 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:51:24,530 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:51:24,531 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:51:24,531 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:51:24,532 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:51:24,532 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:51:24,532 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:51:24,532 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:51:24,533 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:51:24,533 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:51:24,533 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:51:24,533 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:51:24,534 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:51:24,534 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:51:24,534 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:51:24,534 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:51:24,535 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:51:24,535 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:51:24,535 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:51:24,535 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:51:24,535 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:51:24,536 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:51:24,536 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:51:24,536 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:51:24,536 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:51:24,537 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:51:24,537 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:51:24,537 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:51:24,540 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:51:24,540 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:51:24,540 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:51:24,540 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:51:24,547 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:51:24,548 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:51:24,548 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:51:24,548 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:51:24,552 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:51:24,552 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:51:24,552 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:51:24,552 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:51:24,556 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:51:24,556 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:51:24,556 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:51:24,557 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:51:24,561 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2020-11-09 12:51:24,573 INFO L253 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2020-11-09 12:51:24,596 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-09 12:51:24,596 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-09 12:51:24,596 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-09 12:51:24,597 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-09 12:51:24,597 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-09 12:51:24,597 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-09 12:51:24,597 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-09 12:51:24,597 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-09 12:51:24,610 INFO L120 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2020-11-09 12:51:24,612 INFO L135 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 101 places, 91 transitions, 202 flow [2020-11-09 12:51:24,615 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 101 places, 91 transitions, 202 flow [2020-11-09 12:51:24,618 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 101 places, 91 transitions, 202 flow [2020-11-09 12:51:24,668 INFO L129 PetriNetUnfolder]: 3/87 cut-off events. [2020-11-09 12:51:24,668 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-11-09 12:51:24,673 INFO L84 FinitePrefix]: Finished finitePrefix Result has 100 conditions, 87 events. 3/87 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 72 event pairs, 0 based on Foata normal form. 0/83 useless extension candidates. Maximal degree in co-relation 72. Up to 2 conditions per place. [2020-11-09 12:51:24,677 INFO L116 LiptonReduction]: Number of co-enabled transitions 2042 [2020-11-09 12:51:27,553 WARN L194 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 44 [2020-11-09 12:51:28,495 WARN L194 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 49 [2020-11-09 12:51:29,301 WARN L194 SmtUtils]: Spent 259.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 78 [2020-11-09 12:51:29,414 WARN L194 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 74 [2020-11-09 12:51:29,654 WARN L194 SmtUtils]: Spent 237.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 78 [2020-11-09 12:51:29,767 WARN L194 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 74 [2020-11-09 12:51:30,278 INFO L131 LiptonReduction]: Checked pairs total: 3854 [2020-11-09 12:51:30,278 INFO L133 LiptonReduction]: Total number of compositions: 80 [2020-11-09 12:51:30,286 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 38 places, 26 transitions, 72 flow [2020-11-09 12:51:30,364 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 706 states. [2020-11-09 12:51:30,367 INFO L276 IsEmpty]: Start isEmpty. Operand 706 states. [2020-11-09 12:51:30,379 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-11-09 12:51:30,379 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 12:51:30,381 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 12:51:30,382 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 12:51:30,392 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 12:51:30,393 INFO L82 PathProgramCache]: Analyzing trace with hash -709438342, now seen corresponding path program 1 times [2020-11-09 12:51:30,406 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 12:51:30,408 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [173347527] [2020-11-09 12:51:30,408 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 12:51:30,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 12:51:30,676 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 12:51:30,677 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [173347527] [2020-11-09 12:51:30,678 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 12:51:30,678 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-11-09 12:51:30,679 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1569901725] [2020-11-09 12:51:30,685 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-09 12:51:30,685 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 12:51:30,700 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-09 12:51:30,701 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-09 12:51:30,703 INFO L87 Difference]: Start difference. First operand 706 states. Second operand 3 states. [2020-11-09 12:51:30,763 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 12:51:30,763 INFO L93 Difference]: Finished difference Result 670 states and 2295 transitions. [2020-11-09 12:51:30,764 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-09 12:51:30,768 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10 [2020-11-09 12:51:30,769 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 12:51:30,802 INFO L225 Difference]: With dead ends: 670 [2020-11-09 12:51:30,803 INFO L226 Difference]: Without dead ends: 526 [2020-11-09 12:51:30,804 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-09 12:51:30,831 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 526 states. [2020-11-09 12:51:30,890 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 526 to 526. [2020-11-09 12:51:30,894 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 526 states. [2020-11-09 12:51:30,901 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 526 states to 526 states and 1743 transitions. [2020-11-09 12:51:30,906 INFO L78 Accepts]: Start accepts. Automaton has 526 states and 1743 transitions. Word has length 10 [2020-11-09 12:51:30,907 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 12:51:30,907 INFO L481 AbstractCegarLoop]: Abstraction has 526 states and 1743 transitions. [2020-11-09 12:51:30,907 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-09 12:51:30,907 INFO L276 IsEmpty]: Start isEmpty. Operand 526 states and 1743 transitions. [2020-11-09 12:51:30,909 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-11-09 12:51:30,909 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 12:51:30,909 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 12:51:30,910 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-09 12:51:30,910 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 12:51:30,910 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 12:51:30,911 INFO L82 PathProgramCache]: Analyzing trace with hash 839232956, now seen corresponding path program 1 times [2020-11-09 12:51:30,911 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 12:51:30,911 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1423830410] [2020-11-09 12:51:30,911 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 12:51:30,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 12:51:31,005 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 12:51:31,005 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1423830410] [2020-11-09 12:51:31,005 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 12:51:31,006 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-09 12:51:31,006 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1634880385] [2020-11-09 12:51:31,007 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-09 12:51:31,007 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 12:51:31,008 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-09 12:51:31,008 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-09 12:51:31,009 INFO L87 Difference]: Start difference. First operand 526 states and 1743 transitions. Second operand 4 states. [2020-11-09 12:51:31,043 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 12:51:31,043 INFO L93 Difference]: Finished difference Result 634 states and 2040 transitions. [2020-11-09 12:51:31,044 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-09 12:51:31,044 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2020-11-09 12:51:31,044 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 12:51:31,048 INFO L225 Difference]: With dead ends: 634 [2020-11-09 12:51:31,048 INFO L226 Difference]: Without dead ends: 322 [2020-11-09 12:51:31,048 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 12:51:31,052 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 322 states. [2020-11-09 12:51:31,065 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 322 to 322. [2020-11-09 12:51:31,065 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 322 states. [2020-11-09 12:51:31,067 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 322 states to 322 states and 1008 transitions. [2020-11-09 12:51:31,067 INFO L78 Accepts]: Start accepts. Automaton has 322 states and 1008 transitions. Word has length 11 [2020-11-09 12:51:31,068 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 12:51:31,068 INFO L481 AbstractCegarLoop]: Abstraction has 322 states and 1008 transitions. [2020-11-09 12:51:31,068 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-09 12:51:31,068 INFO L276 IsEmpty]: Start isEmpty. Operand 322 states and 1008 transitions. [2020-11-09 12:51:31,069 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-11-09 12:51:31,069 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 12:51:31,070 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 12:51:31,070 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-09 12:51:31,070 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 12:51:31,070 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 12:51:31,071 INFO L82 PathProgramCache]: Analyzing trace with hash 1127842304, now seen corresponding path program 1 times [2020-11-09 12:51:31,071 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 12:51:31,071 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1046043028] [2020-11-09 12:51:31,071 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 12:51:31,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 12:51:31,161 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 12:51:31,161 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1046043028] [2020-11-09 12:51:31,162 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 12:51:31,162 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-11-09 12:51:31,162 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2041136197] [2020-11-09 12:51:31,162 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-09 12:51:31,163 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 12:51:31,164 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-09 12:51:31,164 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-09 12:51:31,165 INFO L87 Difference]: Start difference. First operand 322 states and 1008 transitions. Second operand 3 states. [2020-11-09 12:51:31,184 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 12:51:31,184 INFO L93 Difference]: Finished difference Result 304 states and 939 transitions. [2020-11-09 12:51:31,189 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-09 12:51:31,189 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 12 [2020-11-09 12:51:31,189 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 12:51:31,192 INFO L225 Difference]: With dead ends: 304 [2020-11-09 12:51:31,192 INFO L226 Difference]: Without dead ends: 304 [2020-11-09 12:51:31,193 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-09 12:51:31,195 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 304 states. [2020-11-09 12:51:31,206 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 304 to 304. [2020-11-09 12:51:31,206 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 304 states. [2020-11-09 12:51:31,208 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 304 states to 304 states and 939 transitions. [2020-11-09 12:51:31,208 INFO L78 Accepts]: Start accepts. Automaton has 304 states and 939 transitions. Word has length 12 [2020-11-09 12:51:31,209 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 12:51:31,209 INFO L481 AbstractCegarLoop]: Abstraction has 304 states and 939 transitions. [2020-11-09 12:51:31,209 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-09 12:51:31,209 INFO L276 IsEmpty]: Start isEmpty. Operand 304 states and 939 transitions. [2020-11-09 12:51:31,218 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-11-09 12:51:31,219 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 12:51:31,219 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 12:51:31,219 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-11-09 12:51:31,220 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 12:51:31,222 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 12:51:31,223 INFO L82 PathProgramCache]: Analyzing trace with hash 1624168671, now seen corresponding path program 1 times [2020-11-09 12:51:31,223 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 12:51:31,224 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [236296145] [2020-11-09 12:51:31,224 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 12:51:31,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 12:51:31,310 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 12:51:31,311 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [236296145] [2020-11-09 12:51:31,311 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 12:51:31,311 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-09 12:51:31,312 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [870602136] [2020-11-09 12:51:31,312 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-09 12:51:31,312 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 12:51:31,313 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-09 12:51:31,313 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-09 12:51:31,313 INFO L87 Difference]: Start difference. First operand 304 states and 939 transitions. Second operand 4 states. [2020-11-09 12:51:31,345 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 12:51:31,346 INFO L93 Difference]: Finished difference Result 406 states and 1208 transitions. [2020-11-09 12:51:31,346 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-09 12:51:31,346 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 13 [2020-11-09 12:51:31,347 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 12:51:31,349 INFO L225 Difference]: With dead ends: 406 [2020-11-09 12:51:31,349 INFO L226 Difference]: Without dead ends: 226 [2020-11-09 12:51:31,349 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 12:51:31,353 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 226 states. [2020-11-09 12:51:31,364 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 226 to 226. [2020-11-09 12:51:31,365 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 226 states. [2020-11-09 12:51:31,366 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 226 states to 226 states and 651 transitions. [2020-11-09 12:51:31,366 INFO L78 Accepts]: Start accepts. Automaton has 226 states and 651 transitions. Word has length 13 [2020-11-09 12:51:31,366 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 12:51:31,366 INFO L481 AbstractCegarLoop]: Abstraction has 226 states and 651 transitions. [2020-11-09 12:51:31,367 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-09 12:51:31,367 INFO L276 IsEmpty]: Start isEmpty. Operand 226 states and 651 transitions. [2020-11-09 12:51:31,369 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-11-09 12:51:31,369 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 12:51:31,370 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 12:51:31,370 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-11-09 12:51:31,370 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 12:51:31,370 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 12:51:31,370 INFO L82 PathProgramCache]: Analyzing trace with hash 1524641156, now seen corresponding path program 1 times [2020-11-09 12:51:31,371 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 12:51:31,371 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1329610461] [2020-11-09 12:51:31,371 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 12:51:31,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 12:51:31,453 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 12:51:31,453 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1329610461] [2020-11-09 12:51:31,454 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 12:51:31,454 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-09 12:51:31,454 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [162642059] [2020-11-09 12:51:31,454 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-09 12:51:31,455 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 12:51:31,455 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-09 12:51:31,455 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-09 12:51:31,456 INFO L87 Difference]: Start difference. First operand 226 states and 651 transitions. Second operand 4 states. [2020-11-09 12:51:31,499 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 12:51:31,499 INFO L93 Difference]: Finished difference Result 287 states and 773 transitions. [2020-11-09 12:51:31,499 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-09 12:51:31,499 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 14 [2020-11-09 12:51:31,500 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 12:51:31,502 INFO L225 Difference]: With dead ends: 287 [2020-11-09 12:51:31,502 INFO L226 Difference]: Without dead ends: 206 [2020-11-09 12:51:31,502 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 12:51:31,503 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 206 states. [2020-11-09 12:51:31,509 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 206 to 206. [2020-11-09 12:51:31,509 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 206 states. [2020-11-09 12:51:31,510 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 206 states to 206 states and 559 transitions. [2020-11-09 12:51:31,511 INFO L78 Accepts]: Start accepts. Automaton has 206 states and 559 transitions. Word has length 14 [2020-11-09 12:51:31,511 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 12:51:31,511 INFO L481 AbstractCegarLoop]: Abstraction has 206 states and 559 transitions. [2020-11-09 12:51:31,511 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-09 12:51:31,511 INFO L276 IsEmpty]: Start isEmpty. Operand 206 states and 559 transitions. [2020-11-09 12:51:31,512 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-11-09 12:51:31,512 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 12:51:31,512 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 12:51:31,512 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-11-09 12:51:31,513 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 12:51:31,513 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 12:51:31,513 INFO L82 PathProgramCache]: Analyzing trace with hash 1148644205, now seen corresponding path program 1 times [2020-11-09 12:51:31,513 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 12:51:31,514 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1104905861] [2020-11-09 12:51:31,514 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 12:51:31,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 12:51:31,573 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 12:51:31,574 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1104905861] [2020-11-09 12:51:31,574 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 12:51:31,574 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-09 12:51:31,574 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [715326164] [2020-11-09 12:51:31,575 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-09 12:51:31,575 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 12:51:31,575 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-09 12:51:31,576 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-11-09 12:51:31,576 INFO L87 Difference]: Start difference. First operand 206 states and 559 transitions. Second operand 5 states. [2020-11-09 12:51:31,630 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 12:51:31,630 INFO L93 Difference]: Finished difference Result 227 states and 565 transitions. [2020-11-09 12:51:31,630 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-09 12:51:31,631 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 15 [2020-11-09 12:51:31,631 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 12:51:31,632 INFO L225 Difference]: With dead ends: 227 [2020-11-09 12:51:31,632 INFO L226 Difference]: Without dead ends: 162 [2020-11-09 12:51:31,633 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 0 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 12:51:31,634 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 162 states. [2020-11-09 12:51:31,637 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 162 to 162. [2020-11-09 12:51:31,637 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 162 states. [2020-11-09 12:51:31,658 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 162 states to 162 states and 391 transitions. [2020-11-09 12:51:31,659 INFO L78 Accepts]: Start accepts. Automaton has 162 states and 391 transitions. Word has length 15 [2020-11-09 12:51:31,659 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 12:51:31,659 INFO L481 AbstractCegarLoop]: Abstraction has 162 states and 391 transitions. [2020-11-09 12:51:31,659 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-09 12:51:31,659 INFO L276 IsEmpty]: Start isEmpty. Operand 162 states and 391 transitions. [2020-11-09 12:51:31,660 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-11-09 12:51:31,660 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 12:51:31,660 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 12:51:31,660 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-11-09 12:51:31,661 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 12:51:31,661 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 12:51:31,661 INFO L82 PathProgramCache]: Analyzing trace with hash 1193386920, now seen corresponding path program 1 times [2020-11-09 12:51:31,661 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 12:51:31,662 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [36834430] [2020-11-09 12:51:31,662 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 12:51:31,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 12:51:31,730 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 12:51:31,730 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [36834430] [2020-11-09 12:51:31,731 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 12:51:31,731 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-09 12:51:31,731 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1353780697] [2020-11-09 12:51:31,731 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-09 12:51:31,731 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 12:51:31,732 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-09 12:51:31,732 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-11-09 12:51:31,732 INFO L87 Difference]: Start difference. First operand 162 states and 391 transitions. Second operand 6 states. [2020-11-09 12:51:31,794 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 12:51:31,795 INFO L93 Difference]: Finished difference Result 158 states and 360 transitions. [2020-11-09 12:51:31,795 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-11-09 12:51:31,795 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 16 [2020-11-09 12:51:31,796 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 12:51:31,796 INFO L225 Difference]: With dead ends: 158 [2020-11-09 12:51:31,797 INFO L226 Difference]: Without dead ends: 125 [2020-11-09 12:51:31,797 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 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 12:51:31,798 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 125 states. [2020-11-09 12:51:31,801 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 125 to 125. [2020-11-09 12:51:31,801 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 125 states. [2020-11-09 12:51:31,801 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125 states to 125 states and 282 transitions. [2020-11-09 12:51:31,802 INFO L78 Accepts]: Start accepts. Automaton has 125 states and 282 transitions. Word has length 16 [2020-11-09 12:51:31,802 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 12:51:31,802 INFO L481 AbstractCegarLoop]: Abstraction has 125 states and 282 transitions. [2020-11-09 12:51:31,802 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-11-09 12:51:31,802 INFO L276 IsEmpty]: Start isEmpty. Operand 125 states and 282 transitions. [2020-11-09 12:51:31,803 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-11-09 12:51:31,803 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 12:51:31,803 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 12:51:31,803 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-11-09 12:51:31,804 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 12:51:31,804 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 12:51:31,804 INFO L82 PathProgramCache]: Analyzing trace with hash -1709090152, now seen corresponding path program 1 times [2020-11-09 12:51:31,804 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 12:51:31,805 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1914880475] [2020-11-09 12:51:31,805 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 12:51:31,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 12:51:31,877 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 12:51:31,877 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1914880475] [2020-11-09 12:51:31,877 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 12:51:31,877 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-11-09 12:51:31,878 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1447009609] [2020-11-09 12:51:31,878 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-11-09 12:51:31,878 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 12:51:31,879 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-11-09 12:51:31,879 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-11-09 12:51:31,879 INFO L87 Difference]: Start difference. First operand 125 states and 282 transitions. Second operand 7 states. [2020-11-09 12:51:31,979 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 12:51:31,979 INFO L93 Difference]: Finished difference Result 120 states and 270 transitions. [2020-11-09 12:51:31,980 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-11-09 12:51:31,980 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 18 [2020-11-09 12:51:31,980 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 12:51:31,981 INFO L225 Difference]: With dead ends: 120 [2020-11-09 12:51:31,981 INFO L226 Difference]: Without dead ends: 111 [2020-11-09 12:51:31,982 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2020-11-09 12:51:31,983 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 111 states. [2020-11-09 12:51:31,986 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 111 to 111. [2020-11-09 12:51:31,986 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 111 states. [2020-11-09 12:51:31,986 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111 states to 111 states and 254 transitions. [2020-11-09 12:51:31,987 INFO L78 Accepts]: Start accepts. Automaton has 111 states and 254 transitions. Word has length 18 [2020-11-09 12:51:31,987 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 12:51:31,987 INFO L481 AbstractCegarLoop]: Abstraction has 111 states and 254 transitions. [2020-11-09 12:51:31,987 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-11-09 12:51:31,987 INFO L276 IsEmpty]: Start isEmpty. Operand 111 states and 254 transitions. [2020-11-09 12:51:31,988 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2020-11-09 12:51:31,988 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 12:51:31,988 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 12:51:31,988 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-11-09 12:51:31,988 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 12:51:31,989 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 12:51:31,989 INFO L82 PathProgramCache]: Analyzing trace with hash -1760559887, now seen corresponding path program 1 times [2020-11-09 12:51:31,989 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 12:51:31,989 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1239362209] [2020-11-09 12:51:31,989 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 12:51:32,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 12:51:32,027 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 12:51:32,027 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1239362209] [2020-11-09 12:51:32,027 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 12:51:32,027 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-09 12:51:32,028 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1357115482] [2020-11-09 12:51:32,028 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-09 12:51:32,028 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 12:51:32,029 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-09 12:51:32,029 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-09 12:51:32,029 INFO L87 Difference]: Start difference. First operand 111 states and 254 transitions. Second operand 4 states. [2020-11-09 12:51:32,047 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 12:51:32,047 INFO L93 Difference]: Finished difference Result 144 states and 327 transitions. [2020-11-09 12:51:32,048 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-09 12:51:32,048 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 20 [2020-11-09 12:51:32,048 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 12:51:32,049 INFO L225 Difference]: With dead ends: 144 [2020-11-09 12:51:32,049 INFO L226 Difference]: Without dead ends: 71 [2020-11-09 12:51:32,049 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 12:51:32,050 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71 states. [2020-11-09 12:51:32,052 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71 to 71. [2020-11-09 12:51:32,052 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 71 states. [2020-11-09 12:51:32,052 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 71 states and 143 transitions. [2020-11-09 12:51:32,053 INFO L78 Accepts]: Start accepts. Automaton has 71 states and 143 transitions. Word has length 20 [2020-11-09 12:51:32,053 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 12:51:32,053 INFO L481 AbstractCegarLoop]: Abstraction has 71 states and 143 transitions. [2020-11-09 12:51:32,053 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-09 12:51:32,053 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 143 transitions. [2020-11-09 12:51:32,054 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2020-11-09 12:51:32,054 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 12:51:32,054 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 12:51:32,054 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-11-09 12:51:32,054 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 12:51:32,055 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 12:51:32,055 INFO L82 PathProgramCache]: Analyzing trace with hash -1416850207, now seen corresponding path program 2 times [2020-11-09 12:51:32,055 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 12:51:32,055 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [531606963] [2020-11-09 12:51:32,056 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 12:51:32,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 12:51:32,093 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 12:51:32,093 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [531606963] [2020-11-09 12:51:32,094 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 12:51:32,094 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-09 12:51:32,094 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1447724237] [2020-11-09 12:51:32,094 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-09 12:51:32,095 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 12:51:32,095 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-09 12:51:32,095 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-09 12:51:32,095 INFO L87 Difference]: Start difference. First operand 71 states and 143 transitions. Second operand 4 states. [2020-11-09 12:51:32,109 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 12:51:32,109 INFO L93 Difference]: Finished difference Result 70 states and 142 transitions. [2020-11-09 12:51:32,109 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-09 12:51:32,110 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 20 [2020-11-09 12:51:32,110 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 12:51:32,110 INFO L225 Difference]: With dead ends: 70 [2020-11-09 12:51:32,110 INFO L226 Difference]: Without dead ends: 0 [2020-11-09 12:51:32,110 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 12:51:32,111 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-11-09 12:51:32,111 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-11-09 12:51:32,111 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-11-09 12:51:32,111 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-11-09 12:51:32,111 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 20 [2020-11-09 12:51:32,111 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 12:51:32,111 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-09 12:51:32,112 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-09 12:51:32,112 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-11-09 12:51:32,112 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-09 12:51:32,112 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-11-09 12:51:32,115 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.11 12:51:32 BasicIcfg [2020-11-09 12:51:32,115 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-09 12:51:32,117 INFO L168 Benchmark]: Toolchain (without parser) took 9116.97 ms. Allocated memory was 156.2 MB in the beginning and 231.7 MB in the end (delta: 75.5 MB). Free memory was 130.4 MB in the beginning and 148.2 MB in the end (delta: -17.8 MB). Peak memory consumption was 58.7 MB. Max. memory is 8.0 GB. [2020-11-09 12:51:32,118 INFO L168 Benchmark]: CDTParser took 1.25 ms. Allocated memory is still 156.2 MB. Free memory is still 127.8 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-11-09 12:51:32,118 INFO L168 Benchmark]: CACSL2BoogieTranslator took 648.75 ms. Allocated memory is still 156.2 MB. Free memory was 129.9 MB in the beginning and 135.6 MB in the end (delta: -5.8 MB). Peak memory consumption was 33.4 MB. Max. memory is 8.0 GB. [2020-11-09 12:51:32,119 INFO L168 Benchmark]: Boogie Procedure Inliner took 89.85 ms. Allocated memory is still 156.2 MB. Free memory was 135.6 MB in the beginning and 133.7 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2020-11-09 12:51:32,120 INFO L168 Benchmark]: Boogie Preprocessor took 64.57 ms. Allocated memory is still 156.2 MB. Free memory was 133.7 MB in the beginning and 132.1 MB in the end (delta: 1.6 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2020-11-09 12:51:32,120 INFO L168 Benchmark]: RCFGBuilder took 636.16 ms. Allocated memory is still 156.2 MB. Free memory was 132.1 MB in the beginning and 108.0 MB in the end (delta: 24.1 MB). Peak memory consumption was 24.1 MB. Max. memory is 8.0 GB. [2020-11-09 12:51:32,121 INFO L168 Benchmark]: TraceAbstraction took 7663.57 ms. Allocated memory was 156.2 MB in the beginning and 231.7 MB in the end (delta: 75.5 MB). Free memory was 108.0 MB in the beginning and 148.2 MB in the end (delta: -40.2 MB). Peak memory consumption was 35.8 MB. Max. memory is 8.0 GB. [2020-11-09 12:51:32,125 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.25 ms. Allocated memory is still 156.2 MB. Free memory is still 127.8 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 648.75 ms. Allocated memory is still 156.2 MB. Free memory was 129.9 MB in the beginning and 135.6 MB in the end (delta: -5.8 MB). Peak memory consumption was 33.4 MB. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 89.85 ms. Allocated memory is still 156.2 MB. Free memory was 135.6 MB in the beginning and 133.7 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 64.57 ms. Allocated memory is still 156.2 MB. Free memory was 133.7 MB in the beginning and 132.1 MB in the end (delta: 1.6 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 636.16 ms. Allocated memory is still 156.2 MB. Free memory was 132.1 MB in the beginning and 108.0 MB in the end (delta: 24.1 MB). Peak memory consumption was 24.1 MB. Max. memory is 8.0 GB. * TraceAbstraction took 7663.57 ms. Allocated memory was 156.2 MB in the beginning and 231.7 MB in the end (delta: 75.5 MB). Free memory was 108.0 MB in the beginning and 148.2 MB in the end (delta: -40.2 MB). Peak memory consumption was 35.8 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 1383 VarBasedMoverChecksPositive, 68 VarBasedMoverChecksNegative, 17 SemBasedMoverChecksPositive, 51 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.5s, 112 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 5.6s, 101 PlacesBefore, 38 PlacesAfterwards, 91 TransitionsBefore, 26 TransitionsAfterwards, 2042 CoEnabledTransitionPairs, 6 FixpointIterations, 19 TrivialSequentialCompositions, 50 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 9 ConcurrentYvCompositions, 2 ChoiceCompositions, 80 TotalNumberOfCompositions, 3854 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 5 procedures, 89 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 7.5s, OverallIterations: 10, TraceHistogramMax: 1, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 5.7s, HoareTripleCheckerStatistics: 209 SDtfs, 230 SDslu, 310 SDs, 0 SdLazy, 184 SolverSat, 44 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 34 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=706occurred 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, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 149 NumberOfCodeBlocks, 149 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 139 ConstructedInterpolants, 0 QuantifiedInterpolants, 5533 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...