/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe-New_States.epf -i ../../../trunk/examples/svcomp/pthread-wmm/safe037_power.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.2.0-60729f1 [2020-11-12 12:29:21,436 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-12 12:29:21,440 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-12 12:29:21,476 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-12 12:29:21,477 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-12 12:29:21,479 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-12 12:29:21,480 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-12 12:29:21,483 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-12 12:29:21,485 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-12 12:29:21,486 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-12 12:29:21,487 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-12 12:29:21,489 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-12 12:29:21,489 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-12 12:29:21,491 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-12 12:29:21,492 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-12 12:29:21,494 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-12 12:29:21,495 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-12 12:29:21,496 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-12 12:29:21,498 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-12 12:29:21,501 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-12 12:29:21,503 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-12 12:29:21,504 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-12 12:29:21,506 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-12 12:29:21,507 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-12 12:29:21,510 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-12 12:29:21,511 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-12 12:29:21,511 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-12 12:29:21,512 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-12 12:29:21,513 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-12 12:29:21,514 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-12 12:29:21,515 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-12 12:29:21,515 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-12 12:29:21,516 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-12 12:29:21,517 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-12 12:29:21,519 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-12 12:29:21,519 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-12 12:29:21,520 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-12 12:29:21,520 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-12 12:29:21,521 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-12 12:29:21,522 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-12 12:29:21,523 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-12 12:29:21,524 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe-New_States.epf [2020-11-12 12:29:21,559 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-12 12:29:21,560 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-12 12:29:21,563 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-12 12:29:21,563 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-12 12:29:21,564 INFO L138 SettingsManager]: * Use SBE=true [2020-11-12 12:29:21,564 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-12 12:29:21,564 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-12 12:29:21,564 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-12 12:29:21,565 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-12 12:29:21,565 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-12 12:29:21,566 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-12 12:29:21,567 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-12 12:29:21,567 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-12 12:29:21,567 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-12 12:29:21,567 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-12 12:29:21,567 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-12 12:29:21,568 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-12 12:29:21,569 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-12 12:29:21,569 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-12 12:29:21,569 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-12 12:29:21,570 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-12 12:29:21,570 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-12 12:29:21,570 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-12 12:29:21,570 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-12 12:29:21,571 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-12 12:29:21,571 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-12 12:29:21,571 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-12 12:29:21,572 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2020-11-12 12:29:21,572 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-12 12:29:21,572 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-11-12 12:29:21,572 INFO L138 SettingsManager]: * Sleep set reduction in concurrent analysis=NEW_STATES WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-11-12 12:29:21,967 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-12 12:29:22,002 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-12 12:29:22,005 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-12 12:29:22,008 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-12 12:29:22,008 INFO L275 PluginConnector]: CDTParser initialized [2020-11-12 12:29:22,010 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe037_power.oepc.i [2020-11-12 12:29:22,080 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/024f1421b/bc0ddb962e6c4b44b030a0f7668f2962/FLAG3419d32e8 [2020-11-12 12:29:22,894 INFO L306 CDTParser]: Found 1 translation units. [2020-11-12 12:29:22,894 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe037_power.oepc.i [2020-11-12 12:29:22,913 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/024f1421b/bc0ddb962e6c4b44b030a0f7668f2962/FLAG3419d32e8 [2020-11-12 12:29:23,096 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/024f1421b/bc0ddb962e6c4b44b030a0f7668f2962 [2020-11-12 12:29:23,099 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-12 12:29:23,106 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-11-12 12:29:23,108 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-12 12:29:23,108 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-12 12:29:23,112 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-12 12:29:23,113 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 12:29:23" (1/1) ... [2020-11-12 12:29:23,116 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@608d3086 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:29:23, skipping insertion in model container [2020-11-12 12:29:23,117 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 12:29:23" (1/1) ... [2020-11-12 12:29:23,125 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-12 12:29:23,166 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-12 12:29:23,597 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-12 12:29:23,613 INFO L203 MainTranslator]: Completed pre-run [2020-11-12 12:29:23,686 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-12 12:29:23,842 INFO L208 MainTranslator]: Completed translation [2020-11-12 12:29:23,843 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:29:23 WrapperNode [2020-11-12 12:29:23,843 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-12 12:29:23,844 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-12 12:29:23,844 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-12 12:29:23,845 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-12 12:29:23,853 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:29:23" (1/1) ... [2020-11-12 12:29:23,871 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:29:23" (1/1) ... [2020-11-12 12:29:23,897 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-12 12:29:23,898 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-12 12:29:23,898 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-12 12:29:23,898 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-12 12:29:23,906 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:29:23" (1/1) ... [2020-11-12 12:29:23,907 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:29:23" (1/1) ... [2020-11-12 12:29:23,910 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:29:23" (1/1) ... [2020-11-12 12:29:23,911 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:29:23" (1/1) ... [2020-11-12 12:29:23,918 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:29:23" (1/1) ... [2020-11-12 12:29:23,920 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:29:23" (1/1) ... [2020-11-12 12:29:23,923 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:29:23" (1/1) ... [2020-11-12 12:29:23,926 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-12 12:29:23,927 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-12 12:29:23,927 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-12 12:29:23,928 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-12 12:29:23,929 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:29:23" (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 [2020-11-12 12:29:24,032 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-12 12:29:24,033 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-11-12 12:29:24,033 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-12 12:29:24,033 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-12 12:29:24,033 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-11-12 12:29:24,034 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-11-12 12:29:24,034 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-11-12 12:29:24,034 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-11-12 12:29:24,034 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-11-12 12:29:24,034 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-11-12 12:29:24,034 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-12 12:29:24,035 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-11-12 12:29:24,035 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-12 12:29:24,035 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-12 12:29:24,037 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-11-12 12:29:24,682 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-12 12:29:24,682 INFO L298 CfgBuilder]: Removed 10 assume(true) statements. [2020-11-12 12:29:24,688 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 12:29:24 BoogieIcfgContainer [2020-11-12 12:29:24,688 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-12 12:29:24,692 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-12 12:29:24,692 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-12 12:29:24,696 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-12 12:29:24,697 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 12:29:23" (1/3) ... [2020-11-12 12:29:24,698 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4a928b05 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 12:29:24, skipping insertion in model container [2020-11-12 12:29:24,699 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:29:23" (2/3) ... [2020-11-12 12:29:24,699 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4a928b05 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 12:29:24, skipping insertion in model container [2020-11-12 12:29:24,699 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 12:29:24" (3/3) ... [2020-11-12 12:29:24,702 INFO L111 eAbstractionObserver]: Analyzing ICFG safe037_power.oepc.i [2020-11-12 12:29:24,720 WARN L168 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-11-12 12:29:24,721 INFO L179 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-12 12:29:24,725 INFO L191 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-12 12:29:24,726 INFO L351 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-11-12 12:29:24,774 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:29:24,775 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:29:24,775 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:29:24,775 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:29:24,776 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:29:24,776 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:29:24,776 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:29:24,776 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:29:24,777 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:29:24,777 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:29:24,777 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:29:24,778 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:29:24,778 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:29:24,779 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:29:24,779 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:29:24,779 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:29:24,780 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:29:24,780 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:29:24,780 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:29:24,780 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:29:24,781 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:29:24,781 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:29:24,781 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:29:24,782 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:29:24,784 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:29:24,785 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:29:24,785 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:29:24,785 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:29:24,786 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:29:24,787 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:29:24,787 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:29:24,787 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:29:24,792 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:29:24,793 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:29:24,794 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:29:24,794 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:29:24,797 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:29:24,797 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:29:24,797 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:29:24,798 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:29:24,804 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:29:24,804 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:29:24,804 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:29:24,805 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:29:24,807 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:29:24,807 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:29:24,807 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:29:24,808 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:29:24,810 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2020-11-12 12:29:24,823 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-11-12 12:29:24,848 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-12 12:29:24,848 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-12 12:29:24,848 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-12 12:29:24,849 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-12 12:29:24,849 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-12 12:29:24,849 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-12 12:29:24,849 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-12 12:29:24,849 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-12 12:29:24,862 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 87 places, 80 transitions, 175 flow [2020-11-12 12:29:25,710 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 9849 states, 9847 states have (on average 3.6144003249720726) internal successors, (35591), 9848 states have internal predecessors, (35591), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-12 12:29:26,591 WARN L455 BasicCegarLoop]: Sleep Set Reduction Time: 876ms [2020-11-12 12:29:26,627 WARN L456 BasicCegarLoop]: Sleep set: input automaton has 9849 states, 9847 states have (on average 3.6144003249720726) internal successors, (35591), 9848 states have internal predecessors, (35591), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-12 12:29:26,722 WARN L457 BasicCegarLoop]: Sleep set: output automaton has 33406 states, 30410 states have (on average 1.202367642222953) internal successors, (36564), 33405 states have internal predecessors, (36564), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-12 12:29:26,773 INFO L276 IsEmpty]: Start isEmpty. Operand has 33406 states, 30410 states have (on average 1.202367642222953) internal successors, (36564), 33405 states have internal predecessors, (36564), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-12 12:29:26,956 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2020-11-12 12:29:26,956 INFO L486 BasicCegarLoop]: Found error trace [2020-11-12 12:29:26,957 INFO L494 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-12 12:29:26,957 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-12 12:29:26,966 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-12 12:29:26,967 INFO L82 PathProgramCache]: Analyzing trace with hash -1869165386, now seen corresponding path program 1 times [2020-11-12 12:29:26,978 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-12 12:29:26,978 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1962580290] [2020-11-12 12:29:26,979 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-12 12:29:27,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-12 12:29:27,522 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-12 12:29:27,523 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1962580290] [2020-11-12 12:29:27,524 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-12 12:29:27,524 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-11-12 12:29:27,525 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1338396152] [2020-11-12 12:29:27,528 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-12 12:29:27,529 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-12 12:29:27,544 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-12 12:29:27,544 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-11-12 12:29:27,573 INFO L87 Difference]: Start difference. First operand has 33406 states, 30410 states have (on average 1.202367642222953) internal successors, (36564), 33405 states have internal predecessors, (36564), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 6 states, 6 states have (on average 7.166666666666667) internal successors, (43), 6 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-12 12:29:27,882 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-12 12:29:27,883 INFO L93 Difference]: Finished difference Result 10601 states and 12623 transitions. [2020-11-12 12:29:27,884 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-11-12 12:29:27,886 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.166666666666667) internal successors, (43), 6 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 43 [2020-11-12 12:29:27,886 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-12 12:29:27,996 INFO L225 Difference]: With dead ends: 10601 [2020-11-12 12:29:27,996 INFO L226 Difference]: Without dead ends: 4081 [2020-11-12 12:29:27,998 INFO L749 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2020-11-12 12:29:28,059 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4081 states. [2020-11-12 12:29:28,200 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4081 to 4081. [2020-11-12 12:29:28,213 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4081 states, 3802 states have (on average 1.2969489742240925) internal successors, (4931), 4080 states have internal predecessors, (4931), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-12 12:29:28,231 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4081 states to 4081 states and 4931 transitions. [2020-11-12 12:29:28,233 INFO L78 Accepts]: Start accepts. Automaton has 4081 states and 4931 transitions. Word has length 43 [2020-11-12 12:29:28,233 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-12 12:29:28,234 INFO L481 AbstractCegarLoop]: Abstraction has 4081 states and 4931 transitions. [2020-11-12 12:29:28,234 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 7.166666666666667) internal successors, (43), 6 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-12 12:29:28,234 INFO L276 IsEmpty]: Start isEmpty. Operand 4081 states and 4931 transitions. [2020-11-12 12:29:28,243 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2020-11-12 12:29:28,244 INFO L486 BasicCegarLoop]: Found error trace [2020-11-12 12:29:28,244 INFO L494 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-12 12:29:28,244 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-12 12:29:28,245 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-12 12:29:28,245 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-12 12:29:28,246 INFO L82 PathProgramCache]: Analyzing trace with hash -1028386504, now seen corresponding path program 1 times [2020-11-12 12:29:28,246 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-12 12:29:28,246 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [513355092] [2020-11-12 12:29:28,247 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-12 12:29:28,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-12 12:29:28,425 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-12 12:29:28,426 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [513355092] [2020-11-12 12:29:28,426 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-12 12:29:28,426 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-11-12 12:29:28,427 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1180935517] [2020-11-12 12:29:28,430 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-11-12 12:29:28,430 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-12 12:29:28,431 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-11-12 12:29:28,432 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-11-12 12:29:28,433 INFO L87 Difference]: Start difference. First operand 4081 states and 4931 transitions. Second operand has 7 states, 7 states have (on average 6.714285714285714) internal successors, (47), 7 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-12 12:29:28,639 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-12 12:29:28,640 INFO L93 Difference]: Finished difference Result 2693 states and 3097 transitions. [2020-11-12 12:29:28,640 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-11-12 12:29:28,640 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.714285714285714) internal successors, (47), 7 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2020-11-12 12:29:28,641 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-12 12:29:28,679 INFO L225 Difference]: With dead ends: 2693 [2020-11-12 12:29:28,679 INFO L226 Difference]: Without dead ends: 2098 [2020-11-12 12:29:28,680 INFO L749 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=42, Invalid=90, Unknown=0, NotChecked=0, Total=132 [2020-11-12 12:29:28,693 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2098 states. [2020-11-12 12:29:28,730 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2098 to 2098. [2020-11-12 12:29:28,733 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2098 states, 1963 states have (on average 1.205298013245033) internal successors, (2366), 2097 states have internal predecessors, (2366), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-12 12:29:28,741 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2098 states to 2098 states and 2366 transitions. [2020-11-12 12:29:28,741 INFO L78 Accepts]: Start accepts. Automaton has 2098 states and 2366 transitions. Word has length 47 [2020-11-12 12:29:28,742 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-12 12:29:28,742 INFO L481 AbstractCegarLoop]: Abstraction has 2098 states and 2366 transitions. [2020-11-12 12:29:28,742 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 6.714285714285714) internal successors, (47), 7 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-12 12:29:28,743 INFO L276 IsEmpty]: Start isEmpty. Operand 2098 states and 2366 transitions. [2020-11-12 12:29:28,750 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2020-11-12 12:29:28,750 INFO L486 BasicCegarLoop]: Found error trace [2020-11-12 12:29:28,750 INFO L494 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-12 12:29:28,751 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-12 12:29:28,751 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-12 12:29:28,752 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-12 12:29:28,752 INFO L82 PathProgramCache]: Analyzing trace with hash 1357778806, now seen corresponding path program 1 times [2020-11-12 12:29:28,752 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-12 12:29:28,753 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [640343912] [2020-11-12 12:29:28,753 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-12 12:29:28,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-12 12:29:28,965 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-12 12:29:28,965 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [640343912] [2020-11-12 12:29:28,966 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-12 12:29:28,966 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-11-12 12:29:28,966 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [524823895] [2020-11-12 12:29:28,967 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-11-12 12:29:28,967 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-12 12:29:28,968 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-11-12 12:29:28,968 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-11-12 12:29:28,968 INFO L87 Difference]: Start difference. First operand 2098 states and 2366 transitions. Second operand has 8 states, 8 states have (on average 6.375) internal successors, (51), 8 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-12 12:29:29,137 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-12 12:29:29,137 INFO L93 Difference]: Finished difference Result 1072 states and 1193 transitions. [2020-11-12 12:29:29,138 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-11-12 12:29:29,138 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.375) internal successors, (51), 8 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 51 [2020-11-12 12:29:29,138 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-12 12:29:29,141 INFO L225 Difference]: With dead ends: 1072 [2020-11-12 12:29:29,141 INFO L226 Difference]: Without dead ends: 544 [2020-11-12 12:29:29,141 INFO L749 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=128, Unknown=0, NotChecked=0, Total=182 [2020-11-12 12:29:29,144 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 544 states. [2020-11-12 12:29:29,152 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 544 to 544. [2020-11-12 12:29:29,154 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 544 states, 517 states have (on average 1.1179883945841393) internal successors, (578), 543 states have internal predecessors, (578), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-12 12:29:29,156 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 544 states to 544 states and 578 transitions. [2020-11-12 12:29:29,156 INFO L78 Accepts]: Start accepts. Automaton has 544 states and 578 transitions. Word has length 51 [2020-11-12 12:29:29,156 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-12 12:29:29,157 INFO L481 AbstractCegarLoop]: Abstraction has 544 states and 578 transitions. [2020-11-12 12:29:29,157 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 6.375) internal successors, (51), 8 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-12 12:29:29,157 INFO L276 IsEmpty]: Start isEmpty. Operand 544 states and 578 transitions. [2020-11-12 12:29:29,158 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2020-11-12 12:29:29,159 INFO L486 BasicCegarLoop]: Found error trace [2020-11-12 12:29:29,159 INFO L494 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-12 12:29:29,159 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-11-12 12:29:29,159 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-12 12:29:29,160 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-12 12:29:29,160 INFO L82 PathProgramCache]: Analyzing trace with hash -288612556, now seen corresponding path program 1 times [2020-11-12 12:29:29,161 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-12 12:29:29,161 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [640242667] [2020-11-12 12:29:29,161 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-12 12:29:29,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-12 12:29:29,345 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-12 12:29:29,345 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [640242667] [2020-11-12 12:29:29,345 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-12 12:29:29,346 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-11-12 12:29:29,346 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [500837129] [2020-11-12 12:29:29,346 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-11-12 12:29:29,347 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-12 12:29:29,347 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-11-12 12:29:29,347 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-11-12 12:29:29,348 INFO L87 Difference]: Start difference. First operand 544 states and 578 transitions. Second operand has 7 states, 7 states have (on average 7.857142857142857) internal successors, (55), 7 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-12 12:29:29,458 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-12 12:29:29,459 INFO L93 Difference]: Finished difference Result 747 states and 772 transitions. [2020-11-12 12:29:29,459 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-11-12 12:29:29,459 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.857142857142857) internal successors, (55), 7 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 55 [2020-11-12 12:29:29,460 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-12 12:29:29,462 INFO L225 Difference]: With dead ends: 747 [2020-11-12 12:29:29,462 INFO L226 Difference]: Without dead ends: 411 [2020-11-12 12:29:29,463 INFO L749 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2020-11-12 12:29:29,465 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 411 states. [2020-11-12 12:29:29,472 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 411 to 411. [2020-11-12 12:29:29,473 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 411 states, 384 states have (on average 1.0989583333333333) internal successors, (422), 410 states have internal predecessors, (422), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-12 12:29:29,475 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 411 states to 411 states and 422 transitions. [2020-11-12 12:29:29,476 INFO L78 Accepts]: Start accepts. Automaton has 411 states and 422 transitions. Word has length 55 [2020-11-12 12:29:29,476 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-12 12:29:29,476 INFO L481 AbstractCegarLoop]: Abstraction has 411 states and 422 transitions. [2020-11-12 12:29:29,476 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 7.857142857142857) internal successors, (55), 7 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-12 12:29:29,477 INFO L276 IsEmpty]: Start isEmpty. Operand 411 states and 422 transitions. [2020-11-12 12:29:29,478 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2020-11-12 12:29:29,478 INFO L486 BasicCegarLoop]: Found error trace [2020-11-12 12:29:29,478 INFO L494 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-12 12:29:29,478 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-11-12 12:29:29,479 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-12 12:29:29,479 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-12 12:29:29,479 INFO L82 PathProgramCache]: Analyzing trace with hash 1953173588, now seen corresponding path program 2 times [2020-11-12 12:29:29,480 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-12 12:29:29,480 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [814719532] [2020-11-12 12:29:29,480 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-12 12:29:29,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-12 12:29:29,605 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-12 12:29:29,605 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [814719532] [2020-11-12 12:29:29,606 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-12 12:29:29,606 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-11-12 12:29:29,606 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [77725398] [2020-11-12 12:29:29,607 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-11-12 12:29:29,607 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-12 12:29:29,608 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-11-12 12:29:29,608 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-11-12 12:29:29,609 INFO L87 Difference]: Start difference. First operand 411 states and 422 transitions. Second operand has 7 states, 7 states have (on average 7.857142857142857) internal successors, (55), 7 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-12 12:29:29,709 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-12 12:29:29,710 INFO L93 Difference]: Finished difference Result 610 states and 612 transitions. [2020-11-12 12:29:29,710 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-11-12 12:29:29,710 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.857142857142857) internal successors, (55), 7 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 55 [2020-11-12 12:29:29,711 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-12 12:29:29,713 INFO L225 Difference]: With dead ends: 610 [2020-11-12 12:29:29,713 INFO L226 Difference]: Without dead ends: 362 [2020-11-12 12:29:29,713 INFO L749 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2020-11-12 12:29:29,716 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 362 states. [2020-11-12 12:29:29,722 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 362 to 362. [2020-11-12 12:29:29,723 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 362 states, 335 states have (on average 1.0776119402985074) internal successors, (361), 361 states have internal predecessors, (361), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-12 12:29:29,724 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 362 states to 362 states and 361 transitions. [2020-11-12 12:29:29,725 INFO L78 Accepts]: Start accepts. Automaton has 362 states and 361 transitions. Word has length 55 [2020-11-12 12:29:29,725 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-12 12:29:29,725 INFO L481 AbstractCegarLoop]: Abstraction has 362 states and 361 transitions. [2020-11-12 12:29:29,725 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 7.857142857142857) internal successors, (55), 7 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-12 12:29:29,725 INFO L276 IsEmpty]: Start isEmpty. Operand 362 states and 361 transitions. [2020-11-12 12:29:29,727 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2020-11-12 12:29:29,727 INFO L486 BasicCegarLoop]: Found error trace [2020-11-12 12:29:29,727 INFO L494 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-12 12:29:29,727 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-11-12 12:29:29,728 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-12 12:29:29,728 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-12 12:29:29,728 INFO L82 PathProgramCache]: Analyzing trace with hash 774113022, now seen corresponding path program 3 times [2020-11-12 12:29:29,729 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-12 12:29:29,729 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1986882551] [2020-11-12 12:29:29,729 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-12 12:29:29,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-12 12:29:29,840 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-12 12:29:29,841 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1986882551] [2020-11-12 12:29:29,841 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-12 12:29:29,841 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-11-12 12:29:29,841 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1962510750] [2020-11-12 12:29:29,842 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-11-12 12:29:29,842 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-12 12:29:29,843 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-11-12 12:29:29,843 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-11-12 12:29:29,843 INFO L87 Difference]: Start difference. First operand 362 states and 361 transitions. Second operand has 7 states, 7 states have (on average 7.857142857142857) internal successors, (55), 7 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-12 12:29:29,927 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-12 12:29:29,928 INFO L93 Difference]: Finished difference Result 254 states and 253 transitions. [2020-11-12 12:29:29,928 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-11-12 12:29:29,928 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.857142857142857) internal successors, (55), 7 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 55 [2020-11-12 12:29:29,929 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-12 12:29:29,929 INFO L225 Difference]: With dead ends: 254 [2020-11-12 12:29:29,929 INFO L226 Difference]: Without dead ends: 0 [2020-11-12 12:29:29,930 INFO L749 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2020-11-12 12:29:29,930 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-11-12 12:29:29,930 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-11-12 12:29:29,931 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-12 12:29:29,931 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-11-12 12:29:29,931 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 55 [2020-11-12 12:29:29,931 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-12 12:29:29,931 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-12 12:29:29,932 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 7.857142857142857) internal successors, (55), 7 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-12 12:29:29,932 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-11-12 12:29:29,932 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-12 12:29:29,932 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-11-12 12:29:29,937 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.11 12:29:29 BasicIcfg [2020-11-12 12:29:29,938 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-12 12:29:29,940 INFO L168 Benchmark]: Toolchain (without parser) took 6837.74 ms. Allocated memory was 302.0 MB in the beginning and 1.3 GB in the end (delta: 956.3 MB). Free memory was 276.2 MB in the beginning and 1.1 GB in the end (delta: -807.1 MB). Peak memory consumption was 151.3 MB. Max. memory is 16.0 GB. [2020-11-12 12:29:29,941 INFO L168 Benchmark]: CDTParser took 0.70 ms. Allocated memory is still 302.0 MB. Free memory is still 272.7 MB. There was no memory consumed. Max. memory is 16.0 GB. [2020-11-12 12:29:29,942 INFO L168 Benchmark]: CACSL2BoogieTranslator took 735.24 ms. Allocated memory is still 302.0 MB. Free memory was 275.6 MB in the beginning and 273.9 MB in the end (delta: 1.6 MB). Peak memory consumption was 27.3 MB. Max. memory is 16.0 GB. [2020-11-12 12:29:29,943 INFO L168 Benchmark]: Boogie Procedure Inliner took 52.80 ms. Allocated memory is still 302.0 MB. Free memory was 273.9 MB in the beginning and 271.9 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2020-11-12 12:29:29,944 INFO L168 Benchmark]: Boogie Preprocessor took 28.77 ms. Allocated memory is still 302.0 MB. Free memory was 271.9 MB in the beginning and 270.7 MB in the end (delta: 1.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2020-11-12 12:29:29,945 INFO L168 Benchmark]: RCFGBuilder took 761.23 ms. Allocated memory is still 302.0 MB. Free memory was 270.7 MB in the beginning and 248.3 MB in the end (delta: 22.4 MB). Peak memory consumption was 21.0 MB. Max. memory is 16.0 GB. [2020-11-12 12:29:29,946 INFO L168 Benchmark]: TraceAbstraction took 5245.53 ms. Allocated memory was 302.0 MB in the beginning and 1.3 GB in the end (delta: 956.3 MB). Free memory was 248.1 MB in the beginning and 1.1 GB in the end (delta: -835.2 MB). Peak memory consumption was 124.3 MB. Max. memory is 16.0 GB. [2020-11-12 12:29:29,950 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.70 ms. Allocated memory is still 302.0 MB. Free memory is still 272.7 MB. There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 735.24 ms. Allocated memory is still 302.0 MB. Free memory was 275.6 MB in the beginning and 273.9 MB in the end (delta: 1.6 MB). Peak memory consumption was 27.3 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 52.80 ms. Allocated memory is still 302.0 MB. Free memory was 273.9 MB in the beginning and 271.9 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 28.77 ms. Allocated memory is still 302.0 MB. Free memory was 271.9 MB in the beginning and 270.7 MB in the end (delta: 1.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * RCFGBuilder took 761.23 ms. Allocated memory is still 302.0 MB. Free memory was 270.7 MB in the beginning and 248.3 MB in the end (delta: 22.4 MB). Peak memory consumption was 21.0 MB. Max. memory is 16.0 GB. * TraceAbstraction took 5245.53 ms. Allocated memory was 302.0 MB in the beginning and 1.3 GB in the end (delta: 956.3 MB). Free memory was 248.1 MB in the beginning and 1.1 GB in the end (delta: -835.2 MB). Peak memory consumption was 124.3 MB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - 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, 78 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 5.0s, OverallIterations: 6, TraceHistogramMax: 1, AutomataDifference: 1.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.8s, HoareTripleCheckerStatistics: 416 SDtfs, 583 SDslu, 1577 SDs, 0 SdLazy, 182 SolverSat, 50 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 70 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=33406occurred 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: 0.3s AutomataMinimizationTime, 6 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.8s InterpolantComputationTime, 306 NumberOfCodeBlocks, 306 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 300 ConstructedInterpolants, 0 QuantifiedInterpolants, 37956 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 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...