/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.epf -i ../../../trunk/examples/svcomp/pthread-atomic/peterson.i -------------------------------------------------------------------------------- This is Ultimate 0.2.0-6f57305 [2021-01-26 14:50:54,725 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-01-26 14:50:54,729 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-01-26 14:50:54,782 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-01-26 14:50:54,783 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-01-26 14:50:54,787 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-01-26 14:50:54,790 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-01-26 14:50:54,798 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-01-26 14:50:54,802 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-01-26 14:50:54,808 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-01-26 14:50:54,810 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-01-26 14:50:54,811 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-01-26 14:50:54,812 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-01-26 14:50:54,815 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-01-26 14:50:54,817 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-01-26 14:50:54,818 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-01-26 14:50:54,819 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-01-26 14:50:54,822 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-01-26 14:50:54,829 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-01-26 14:50:54,837 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-01-26 14:50:54,838 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-01-26 14:50:54,840 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-01-26 14:50:54,841 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-01-26 14:50:54,844 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-01-26 14:50:54,852 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-01-26 14:50:54,857 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-01-26 14:50:54,858 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-01-26 14:50:54,859 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-01-26 14:50:54,860 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-01-26 14:50:54,861 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-01-26 14:50:54,861 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-01-26 14:50:54,862 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-01-26 14:50:54,862 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-01-26 14:50:54,863 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-01-26 14:50:54,864 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-01-26 14:50:54,864 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-01-26 14:50:54,865 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.epf [2021-01-26 14:50:54,915 INFO L113 SettingsManager]: Loading preferences was successful [2021-01-26 14:50:54,916 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-01-26 14:50:54,920 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-01-26 14:50:54,920 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-01-26 14:50:54,920 INFO L138 SettingsManager]: * Use SBE=true [2021-01-26 14:50:54,921 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-01-26 14:50:54,921 INFO L138 SettingsManager]: * sizeof long=4 [2021-01-26 14:50:54,921 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-01-26 14:50:54,922 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-01-26 14:50:54,923 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-01-26 14:50:54,924 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-01-26 14:50:54,924 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-01-26 14:50:54,924 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-01-26 14:50:54,925 INFO L138 SettingsManager]: * sizeof long double=12 [2021-01-26 14:50:54,925 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-01-26 14:50:54,925 INFO L138 SettingsManager]: * Use constant arrays=true [2021-01-26 14:50:54,925 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-01-26 14:50:54,925 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-01-26 14:50:54,926 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-01-26 14:50:54,926 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-01-26 14:50:54,926 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-01-26 14:50:54,926 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-01-26 14:50:54,927 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-01-26 14:50:54,927 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-01-26 14:50:54,927 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-01-26 14:50:54,927 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-01-26 14:50:54,928 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-01-26 14:50:54,928 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-01-26 14:50:54,928 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-01-26 14:50:54,928 INFO L138 SettingsManager]: * Minimization of abstraction=NONE [2021-01-26 14:50:54,928 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-01-26 14:50:55,319 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-01-26 14:50:55,351 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-01-26 14:50:55,354 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-01-26 14:50:55,356 INFO L271 PluginConnector]: Initializing CDTParser... [2021-01-26 14:50:55,361 INFO L275 PluginConnector]: CDTParser initialized [2021-01-26 14:50:55,362 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-atomic/peterson.i [2021-01-26 14:50:55,447 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f63610ebe/45718a497808432f81a595966a3a1650/FLAGc62d08e10 [2021-01-26 14:50:56,133 INFO L306 CDTParser]: Found 1 translation units. [2021-01-26 14:50:56,133 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-atomic/peterson.i [2021-01-26 14:50:56,151 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f63610ebe/45718a497808432f81a595966a3a1650/FLAGc62d08e10 [2021-01-26 14:50:56,399 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f63610ebe/45718a497808432f81a595966a3a1650 [2021-01-26 14:50:56,404 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-01-26 14:50:56,419 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-01-26 14:50:56,424 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-01-26 14:50:56,424 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-01-26 14:50:56,428 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-01-26 14:50:56,429 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.01 02:50:56" (1/1) ... [2021-01-26 14:50:56,433 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@31cee395 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.01 02:50:56, skipping insertion in model container [2021-01-26 14:50:56,433 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.01 02:50:56" (1/1) ... [2021-01-26 14:50:56,442 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-01-26 14:50:56,509 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-01-26 14:50:56,679 WARN L612 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2021-01-26 14:50:56,914 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-01-26 14:50:56,926 INFO L203 MainTranslator]: Completed pre-run [2021-01-26 14:50:56,959 WARN L612 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2021-01-26 14:50:57,010 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-01-26 14:50:57,122 INFO L208 MainTranslator]: Completed translation [2021-01-26 14:50:57,123 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.01 02:50:57 WrapperNode [2021-01-26 14:50:57,125 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-01-26 14:50:57,127 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-01-26 14:50:57,127 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-01-26 14:50:57,128 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-01-26 14:50:57,137 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.01 02:50:57" (1/1) ... [2021-01-26 14:50:57,183 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.01 02:50:57" (1/1) ... [2021-01-26 14:50:57,223 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-01-26 14:50:57,224 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-01-26 14:50:57,224 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-01-26 14:50:57,224 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-01-26 14:50:57,233 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.01 02:50:57" (1/1) ... [2021-01-26 14:50:57,234 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.01 02:50:57" (1/1) ... [2021-01-26 14:50:57,240 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.01 02:50:57" (1/1) ... [2021-01-26 14:50:57,240 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.01 02:50:57" (1/1) ... [2021-01-26 14:50:57,258 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.01 02:50:57" (1/1) ... [2021-01-26 14:50:57,263 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.01 02:50:57" (1/1) ... [2021-01-26 14:50:57,265 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.01 02:50:57" (1/1) ... [2021-01-26 14:50:57,268 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-01-26 14:50:57,292 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-01-26 14:50:57,292 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-01-26 14:50:57,293 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-01-26 14:50:57,297 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.01 02:50:57" (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 [2021-01-26 14:50:57,411 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-01-26 14:50:57,411 INFO L130 BoogieDeclarations]: Found specification of procedure thr2 [2021-01-26 14:50:57,412 INFO L138 BoogieDeclarations]: Found implementation of procedure thr2 [2021-01-26 14:50:57,412 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2021-01-26 14:50:57,413 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2021-01-26 14:50:57,413 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-01-26 14:50:57,414 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-01-26 14:50:57,414 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-01-26 14:50:57,414 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-01-26 14:50:57,414 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-01-26 14:50:57,415 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-01-26 14:50:57,415 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-01-26 14:50:57,415 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-01-26 14:50:57,417 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-01-26 14:50:57,856 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-01-26 14:50:57,856 INFO L298 CfgBuilder]: Removed 10 assume(true) statements. [2021-01-26 14:50:57,858 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.01 02:50:57 BoogieIcfgContainer [2021-01-26 14:50:57,859 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-01-26 14:50:57,860 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-01-26 14:50:57,860 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-01-26 14:50:57,864 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-01-26 14:50:57,864 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.01 02:50:56" (1/3) ... [2021-01-26 14:50:57,865 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7de0f3e1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.01 02:50:57, skipping insertion in model container [2021-01-26 14:50:57,865 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.01 02:50:57" (2/3) ... [2021-01-26 14:50:57,865 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7de0f3e1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.01 02:50:57, skipping insertion in model container [2021-01-26 14:50:57,865 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.01 02:50:57" (3/3) ... [2021-01-26 14:50:57,867 INFO L111 eAbstractionObserver]: Analyzing ICFG peterson.i [2021-01-26 14:50:57,882 WARN L168 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-01-26 14:50:57,882 INFO L179 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-01-26 14:50:57,886 INFO L191 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2021-01-26 14:50:57,887 INFO L351 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-01-26 14:50:57,939 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#in~_.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 14:50:57,940 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#in~_.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 14:50:57,940 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~_.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 14:50:57,940 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~_.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 14:50:57,941 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#in~_.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 14:50:57,941 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#in~_.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 14:50:57,941 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~_.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 14:50:57,941 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~_.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 14:50:57,941 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 14:50:57,942 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 14:50:57,942 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~t2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 14:50:57,942 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~t2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 14:50:57,942 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~t2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 14:50:57,942 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 14:50:57,943 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~t2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 14:50:57,943 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 14:50:57,943 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~t2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 14:50:57,943 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 14:50:57,944 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~t2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 14:50:57,944 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 14:50:57,944 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 14:50:57,944 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 14:50:57,945 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~t2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 14:50:57,945 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~t2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 14:50:57,947 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_reach_error_#t~nondet2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 14:50:57,947 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_reach_error_#t~nondet2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 14:50:57,947 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_reach_error_#t~nondet2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 14:50:57,948 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_reach_error_#t~nondet2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 14:50:57,948 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 14:50:57,949 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 14:50:57,950 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 14:50:57,950 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 14:50:57,950 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_reach_error_#t~nondet2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 14:50:57,950 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_reach_error_#t~nondet2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 14:50:57,950 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_reach_error_#t~nondet2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 14:50:57,951 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_reach_error_#t~nondet2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 14:50:57,952 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~_.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 14:50:57,952 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~_.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 14:50:57,952 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~_.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 14:50:57,953 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~_.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 14:50:57,953 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~_.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 14:50:57,953 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~_.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 14:50:57,953 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~_.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 14:50:57,953 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~_.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 14:50:57,954 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 14:50:57,955 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 14:50:57,955 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~t1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 14:50:57,955 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~t1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 14:50:57,956 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~t1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 14:50:57,956 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 14:50:57,956 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~t1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 14:50:57,956 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 14:50:57,956 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~t1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 14:50:57,957 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 14:50:57,957 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~t1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 14:50:57,957 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 14:50:57,957 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 14:50:57,958 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 14:50:57,958 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~t1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 14:50:57,963 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~t1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 14:50:57,963 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_reach_error_#t~nondet2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 14:50:57,964 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_reach_error_#t~nondet2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 14:50:57,964 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_reach_error_#t~nondet2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 14:50:57,964 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_reach_error_#t~nondet2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 14:50:57,964 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 14:50:57,964 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 14:50:57,965 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 14:50:57,965 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 14:50:57,966 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_reach_error_#t~nondet2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 14:50:57,966 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_reach_error_#t~nondet2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 14:50:57,966 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_reach_error_#t~nondet2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 14:50:57,966 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_reach_error_#t~nondet2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 14:50:57,970 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~_.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 14:50:57,971 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 14:50:57,971 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 14:50:57,972 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_reach_error_#t~nondet2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 14:50:57,973 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 14:50:57,974 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~t1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 14:50:57,974 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~_.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 14:50:57,974 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_reach_error_#t~nondet2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 14:50:57,989 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~t2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 14:50:57,990 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_reach_error_#t~nondet2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 14:50:57,990 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~_.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 14:50:57,990 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_reach_error_#t~nondet2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 14:50:57,990 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 14:50:57,990 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 14:50:57,991 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 14:50:57,991 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~_.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 14:50:58,005 INFO L149 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2021-01-26 14:50:58,015 INFO L253 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2021-01-26 14:50:58,035 INFO L377 AbstractCegarLoop]: Interprodecural is true [2021-01-26 14:50:58,035 INFO L378 AbstractCegarLoop]: Hoare is true [2021-01-26 14:50:58,035 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-01-26 14:50:58,035 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-01-26 14:50:58,036 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-01-26 14:50:58,036 INFO L382 AbstractCegarLoop]: Difference is false [2021-01-26 14:50:58,036 INFO L383 AbstractCegarLoop]: Minimize is NONE [2021-01-26 14:50:58,036 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-01-26 14:50:58,048 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 79 places, 82 transitions, 186 flow [2021-01-26 14:50:58,158 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 1280 states, 1276 states have (on average 2.841692789968652) internal successors, (3626), 1279 states have internal predecessors, (3626), 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) [2021-01-26 14:50:58,167 INFO L276 IsEmpty]: Start isEmpty. Operand has 1280 states, 1276 states have (on average 2.841692789968652) internal successors, (3626), 1279 states have internal predecessors, (3626), 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) [2021-01-26 14:50:58,190 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-01-26 14:50:58,191 INFO L496 BasicCegarLoop]: Found error trace [2021-01-26 14:50:58,199 INFO L504 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] [2021-01-26 14:50:58,200 INFO L429 AbstractCegarLoop]: === Iteration 1 === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-26 14:50:58,208 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-26 14:50:58,208 INFO L82 PathProgramCache]: Analyzing trace with hash 987248998, now seen corresponding path program 1 times [2021-01-26 14:50:58,231 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-26 14:50:58,231 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1002158867] [2021-01-26 14:50:58,231 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-26 14:50:58,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-26 14:50:58,553 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-26 14:50:58,553 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1002158867] [2021-01-26 14:50:58,555 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-26 14:50:58,555 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-01-26 14:50:58,556 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1293593656] [2021-01-26 14:50:58,563 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2021-01-26 14:50:58,564 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-26 14:50:58,584 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-01-26 14:50:58,585 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-01-26 14:50:58,591 INFO L87 Difference]: Start difference. First operand has 1280 states, 1276 states have (on average 2.841692789968652) internal successors, (3626), 1279 states have internal predecessors, (3626), 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 2 states, 2 states have (on average 14.0) internal successors, (28), 2 states have internal predecessors, (28), 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) [2021-01-26 14:50:58,657 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-26 14:50:58,658 INFO L93 Difference]: Finished difference Result 1160 states and 2943 transitions. [2021-01-26 14:50:58,658 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-01-26 14:50:58,659 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 14.0) internal successors, (28), 2 states have internal predecessors, (28), 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 28 [2021-01-26 14:50:58,660 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-26 14:50:58,703 INFO L225 Difference]: With dead ends: 1160 [2021-01-26 14:50:58,703 INFO L226 Difference]: Without dead ends: 1079 [2021-01-26 14:50:58,706 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-01-26 14:50:58,706 INFO L78 Accepts]: Start accepts. Automaton has 1079 states. Word has length 28 [2021-01-26 14:50:58,707 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-26 14:50:58,708 INFO L481 AbstractCegarLoop]: Abstraction has 1079 states. [2021-01-26 14:50:58,708 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 2 states, 2 states have (on average 14.0) internal successors, (28), 2 states have internal predecessors, (28), 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) [2021-01-26 14:50:58,708 INFO L276 IsEmpty]: Start isEmpty. Operand 1079 states. [2021-01-26 14:50:58,719 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-01-26 14:50:58,719 INFO L496 BasicCegarLoop]: Found error trace [2021-01-26 14:50:58,719 INFO L504 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] [2021-01-26 14:50:58,719 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-01-26 14:50:58,720 INFO L429 AbstractCegarLoop]: === Iteration 2 === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-26 14:50:58,723 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-26 14:50:58,723 INFO L82 PathProgramCache]: Analyzing trace with hash 1015878149, now seen corresponding path program 1 times [2021-01-26 14:50:58,723 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-26 14:50:58,724 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [810970072] [2021-01-26 14:50:58,724 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-26 14:50:58,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-26 14:50:58,874 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-26 14:50:58,875 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [810970072] [2021-01-26 14:50:58,875 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-26 14:50:58,875 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-01-26 14:50:58,876 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1505359161] [2021-01-26 14:50:58,878 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-01-26 14:50:58,879 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-26 14:50:58,881 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-01-26 14:50:58,881 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-01-26 14:50:58,881 INFO L87 Difference]: Start difference. First operand 1079 states. Second operand has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 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) [2021-01-26 14:50:58,936 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-26 14:50:58,936 INFO L93 Difference]: Finished difference Result 1064 states and 2650 transitions. [2021-01-26 14:50:58,936 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-01-26 14:50:58,937 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 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 28 [2021-01-26 14:50:58,937 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-26 14:50:58,944 INFO L225 Difference]: With dead ends: 1064 [2021-01-26 14:50:58,944 INFO L226 Difference]: Without dead ends: 914 [2021-01-26 14:50:58,945 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-01-26 14:50:58,945 INFO L78 Accepts]: Start accepts. Automaton has 914 states. Word has length 28 [2021-01-26 14:50:58,945 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-26 14:50:58,946 INFO L481 AbstractCegarLoop]: Abstraction has 914 states. [2021-01-26 14:50:58,946 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 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) [2021-01-26 14:50:58,946 INFO L276 IsEmpty]: Start isEmpty. Operand 914 states. [2021-01-26 14:50:58,948 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-01-26 14:50:58,948 INFO L496 BasicCegarLoop]: Found error trace [2021-01-26 14:50:58,948 INFO L504 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] [2021-01-26 14:50:58,948 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-01-26 14:50:58,949 INFO L429 AbstractCegarLoop]: === Iteration 3 === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-26 14:50:58,949 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-26 14:50:58,949 INFO L82 PathProgramCache]: Analyzing trace with hash 414714930, now seen corresponding path program 1 times [2021-01-26 14:50:58,950 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-26 14:50:58,950 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1191399771] [2021-01-26 14:50:58,950 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-26 14:50:58,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-26 14:50:58,999 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-26 14:50:59,000 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1191399771] [2021-01-26 14:50:59,000 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-26 14:50:59,000 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-01-26 14:50:59,001 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [371236097] [2021-01-26 14:50:59,001 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-01-26 14:50:59,002 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-26 14:50:59,002 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-01-26 14:50:59,002 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-01-26 14:50:59,003 INFO L87 Difference]: Start difference. First operand 914 states. Second operand has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 3 states have internal predecessors, (31), 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) [2021-01-26 14:50:59,027 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-26 14:50:59,027 INFO L93 Difference]: Finished difference Result 686 states and 1670 transitions. [2021-01-26 14:50:59,028 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-01-26 14:50:59,028 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 3 states have internal predecessors, (31), 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 31 [2021-01-26 14:50:59,029 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-26 14:50:59,032 INFO L225 Difference]: With dead ends: 686 [2021-01-26 14:50:59,032 INFO L226 Difference]: Without dead ends: 524 [2021-01-26 14:50:59,033 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-01-26 14:50:59,033 INFO L78 Accepts]: Start accepts. Automaton has 524 states. Word has length 31 [2021-01-26 14:50:59,034 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-26 14:50:59,035 INFO L481 AbstractCegarLoop]: Abstraction has 524 states. [2021-01-26 14:50:59,035 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 3 states have internal predecessors, (31), 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) [2021-01-26 14:50:59,035 INFO L276 IsEmpty]: Start isEmpty. Operand 524 states. [2021-01-26 14:50:59,037 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2021-01-26 14:50:59,037 INFO L496 BasicCegarLoop]: Found error trace [2021-01-26 14:50:59,037 INFO L504 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] [2021-01-26 14:50:59,038 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-01-26 14:50:59,038 INFO L429 AbstractCegarLoop]: === Iteration 4 === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-26 14:50:59,038 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-26 14:50:59,039 INFO L82 PathProgramCache]: Analyzing trace with hash 441924790, now seen corresponding path program 1 times [2021-01-26 14:50:59,039 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-26 14:50:59,039 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1310734963] [2021-01-26 14:50:59,039 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-26 14:50:59,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-26 14:50:59,132 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-26 14:50:59,132 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1310734963] [2021-01-26 14:50:59,132 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-26 14:50:59,133 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-01-26 14:50:59,133 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2003376431] [2021-01-26 14:50:59,133 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-01-26 14:50:59,134 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-26 14:50:59,134 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-01-26 14:50:59,135 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-01-26 14:50:59,135 INFO L87 Difference]: Start difference. First operand 524 states. Second operand has 6 states, 6 states have (on average 6.333333333333333) internal successors, (38), 6 states have internal predecessors, (38), 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) [2021-01-26 14:50:59,307 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-26 14:50:59,307 INFO L93 Difference]: Finished difference Result 689 states and 1709 transitions. [2021-01-26 14:50:59,308 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-01-26 14:50:59,308 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.333333333333333) internal successors, (38), 6 states have internal predecessors, (38), 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 38 [2021-01-26 14:50:59,309 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-26 14:50:59,313 INFO L225 Difference]: With dead ends: 689 [2021-01-26 14:50:59,313 INFO L226 Difference]: Without dead ends: 521 [2021-01-26 14:50:59,313 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2021-01-26 14:50:59,314 INFO L78 Accepts]: Start accepts. Automaton has 521 states. Word has length 38 [2021-01-26 14:50:59,314 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-26 14:50:59,314 INFO L481 AbstractCegarLoop]: Abstraction has 521 states. [2021-01-26 14:50:59,314 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 6.333333333333333) internal successors, (38), 6 states have internal predecessors, (38), 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) [2021-01-26 14:50:59,314 INFO L276 IsEmpty]: Start isEmpty. Operand 521 states. [2021-01-26 14:50:59,316 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2021-01-26 14:50:59,316 INFO L496 BasicCegarLoop]: Found error trace [2021-01-26 14:50:59,316 INFO L504 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] [2021-01-26 14:50:59,317 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-01-26 14:50:59,317 INFO L429 AbstractCegarLoop]: === Iteration 5 === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-26 14:50:59,317 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-26 14:50:59,318 INFO L82 PathProgramCache]: Analyzing trace with hash 1891628272, now seen corresponding path program 2 times [2021-01-26 14:50:59,318 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-26 14:50:59,318 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1692863368] [2021-01-26 14:50:59,318 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-26 14:50:59,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-26 14:50:59,417 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-26 14:50:59,418 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1692863368] [2021-01-26 14:50:59,418 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-26 14:50:59,418 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-01-26 14:50:59,419 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [79006301] [2021-01-26 14:50:59,419 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-01-26 14:50:59,419 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-26 14:50:59,420 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-01-26 14:50:59,420 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-01-26 14:50:59,420 INFO L87 Difference]: Start difference. First operand 521 states. Second operand has 6 states, 6 states have (on average 6.333333333333333) internal successors, (38), 6 states have internal predecessors, (38), 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) [2021-01-26 14:50:59,501 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-26 14:50:59,502 INFO L93 Difference]: Finished difference Result 290 states and 716 transitions. [2021-01-26 14:50:59,502 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-01-26 14:50:59,502 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.333333333333333) internal successors, (38), 6 states have internal predecessors, (38), 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 38 [2021-01-26 14:50:59,503 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-26 14:50:59,503 INFO L225 Difference]: With dead ends: 290 [2021-01-26 14:50:59,503 INFO L226 Difference]: Without dead ends: 0 [2021-01-26 14:50:59,504 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-01-26 14:50:59,504 INFO L78 Accepts]: Start accepts. Automaton has 0 states. Word has length 38 [2021-01-26 14:50:59,504 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-26 14:50:59,504 INFO L481 AbstractCegarLoop]: Abstraction has 0 states. [2021-01-26 14:50:59,504 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 6.333333333333333) internal successors, (38), 6 states have internal predecessors, (38), 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) [2021-01-26 14:50:59,505 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states. [2021-01-26 14:50:59,505 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-01-26 14:50:59,505 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-01-26 14:50:59,510 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.01 02:50:59 BasicIcfg [2021-01-26 14:50:59,510 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-01-26 14:50:59,513 INFO L168 Benchmark]: Toolchain (without parser) took 3104.82 ms. Allocated memory is still 302.0 MB. Free memory was 276.9 MB in the beginning and 155.6 MB in the end (delta: 121.2 MB). Peak memory consumption was 121.9 MB. Max. memory is 16.0 GB. [2021-01-26 14:50:59,514 INFO L168 Benchmark]: CDTParser took 0.91 ms. Allocated memory is still 302.0 MB. Free memory is still 272.3 MB. There was no memory consumed. Max. memory is 16.0 GB. [2021-01-26 14:50:59,514 INFO L168 Benchmark]: CACSL2BoogieTranslator took 701.77 ms. Allocated memory is still 302.0 MB. Free memory was 275.8 MB in the beginning and 246.2 MB in the end (delta: 29.6 MB). Peak memory consumption was 29.4 MB. Max. memory is 16.0 GB. [2021-01-26 14:50:59,515 INFO L168 Benchmark]: Boogie Procedure Inliner took 95.86 ms. Allocated memory is still 302.0 MB. Free memory was 246.2 MB in the beginning and 244.3 MB in the end (delta: 1.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-01-26 14:50:59,516 INFO L168 Benchmark]: Boogie Preprocessor took 67.35 ms. Allocated memory is still 302.0 MB. Free memory was 244.2 MB in the beginning and 284.9 MB in the end (delta: -40.7 MB). Peak memory consumption was 6.6 MB. Max. memory is 16.0 GB. [2021-01-26 14:50:59,517 INFO L168 Benchmark]: RCFGBuilder took 566.61 ms. Allocated memory is still 302.0 MB. Free memory was 284.9 MB in the beginning and 262.6 MB in the end (delta: 22.3 MB). Peak memory consumption was 23.1 MB. Max. memory is 16.0 GB. [2021-01-26 14:50:59,518 INFO L168 Benchmark]: TraceAbstraction took 1650.12 ms. Allocated memory is still 302.0 MB. Free memory was 262.6 MB in the beginning and 155.6 MB in the end (delta: 107.0 MB). Peak memory consumption was 107.0 MB. Max. memory is 16.0 GB. [2021-01-26 14:50:59,522 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.91 ms. Allocated memory is still 302.0 MB. Free memory is still 272.3 MB. There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 701.77 ms. Allocated memory is still 302.0 MB. Free memory was 275.8 MB in the beginning and 246.2 MB in the end (delta: 29.6 MB). Peak memory consumption was 29.4 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 95.86 ms. Allocated memory is still 302.0 MB. Free memory was 246.2 MB in the beginning and 244.3 MB in the end (delta: 1.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 67.35 ms. Allocated memory is still 302.0 MB. Free memory was 244.2 MB in the beginning and 284.9 MB in the end (delta: -40.7 MB). Peak memory consumption was 6.6 MB. Max. memory is 16.0 GB. * RCFGBuilder took 566.61 ms. Allocated memory is still 302.0 MB. Free memory was 284.9 MB in the beginning and 262.6 MB in the end (delta: 22.3 MB). Peak memory consumption was 23.1 MB. Max. memory is 16.0 GB. * TraceAbstraction took 1650.12 ms. Allocated memory is still 302.0 MB. Free memory was 262.6 MB in the beginning and 155.6 MB in the end (delta: 107.0 MB). Peak memory consumption was 107.0 MB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 12]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 12]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 73 locations, 2 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 1.4s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 383 SDtfs, 199 SDslu, 450 SDs, 0 SdLazy, 117 SolverSat, 22 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 25 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1280occurred 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: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 163 NumberOfCodeBlocks, 163 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 158 ConstructedInterpolants, 0 QuantifiedInterpolants, 7430 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 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...