/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-Delay.epf -i ../../../trunk/examples/svcomp/pthread-wmm/thin000_tso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.2.0-60729f1 [2020-11-12 06:27:04,836 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-12 06:27:04,840 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-12 06:27:04,897 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-12 06:27:04,898 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-12 06:27:04,902 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-12 06:27:04,905 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-12 06:27:04,912 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-12 06:27:04,915 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-12 06:27:04,922 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-12 06:27:04,923 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-12 06:27:04,924 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-12 06:27:04,924 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-12 06:27:04,925 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-12 06:27:04,926 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-12 06:27:04,928 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-12 06:27:04,929 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-12 06:27:04,929 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-12 06:27:04,931 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-12 06:27:04,933 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-12 06:27:04,935 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-12 06:27:04,937 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-12 06:27:04,938 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-12 06:27:04,939 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-12 06:27:04,942 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-12 06:27:04,942 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-12 06:27:04,942 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-12 06:27:04,943 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-12 06:27:04,944 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-12 06:27:04,945 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-12 06:27:04,945 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-12 06:27:04,946 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-12 06:27:04,947 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-12 06:27:04,948 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-12 06:27:04,949 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-12 06:27:04,950 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-12 06:27:04,950 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-12 06:27:04,951 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-12 06:27:04,951 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-12 06:27:04,952 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-12 06:27:04,953 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-12 06:27:04,954 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-Delay.epf [2020-11-12 06:27:04,983 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-12 06:27:04,983 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-12 06:27:04,985 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-12 06:27:04,985 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-12 06:27:04,985 INFO L138 SettingsManager]: * Use SBE=true [2020-11-12 06:27:04,986 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-12 06:27:04,986 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-12 06:27:04,986 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-12 06:27:04,986 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-12 06:27:04,987 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-12 06:27:04,987 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-12 06:27:04,987 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-12 06:27:04,987 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-12 06:27:04,987 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-12 06:27:04,988 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-12 06:27:04,988 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-12 06:27:04,988 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-12 06:27:04,988 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-12 06:27:04,989 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-12 06:27:04,989 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-12 06:27:04,989 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-12 06:27:04,989 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-12 06:27:04,990 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-12 06:27:04,990 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-12 06:27:04,990 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-12 06:27:04,990 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-12 06:27:04,990 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-12 06:27:04,991 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2020-11-12 06:27:04,991 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-12 06:27:04,991 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-11-12 06:27:04,991 INFO L138 SettingsManager]: * Sleep set reduction in concurrent analysis=DELAY_SET 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-11-12 06:27:05,378 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-12 06:27:05,405 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-12 06:27:05,408 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-12 06:27:05,410 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-12 06:27:05,411 INFO L275 PluginConnector]: CDTParser initialized [2020-11-12 06:27:05,411 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/thin000_tso.opt.i [2020-11-12 06:27:05,481 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/29552fb3c/6f4cdbf68c2c4a47846db2a580147e9f/FLAG1846ad5bc [2020-11-12 06:27:06,219 INFO L306 CDTParser]: Found 1 translation units. [2020-11-12 06:27:06,219 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/thin000_tso.opt.i [2020-11-12 06:27:06,233 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/29552fb3c/6f4cdbf68c2c4a47846db2a580147e9f/FLAG1846ad5bc [2020-11-12 06:27:06,456 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/29552fb3c/6f4cdbf68c2c4a47846db2a580147e9f [2020-11-12 06:27:06,463 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-12 06:27:06,469 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-11-12 06:27:06,473 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-12 06:27:06,473 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-12 06:27:06,477 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-12 06:27:06,478 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 06:27:06" (1/1) ... [2020-11-12 06:27:06,481 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6d52a923 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 06:27:06, skipping insertion in model container [2020-11-12 06:27:06,481 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 06:27:06" (1/1) ... [2020-11-12 06:27:06,490 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-12 06:27:06,558 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-12 06:27:06,955 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-12 06:27:06,970 INFO L203 MainTranslator]: Completed pre-run [2020-11-12 06:27:07,039 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-12 06:27:07,136 INFO L208 MainTranslator]: Completed translation [2020-11-12 06:27:07,136 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 06:27:07 WrapperNode [2020-11-12 06:27:07,137 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-12 06:27:07,138 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-12 06:27:07,138 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-12 06:27:07,138 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-12 06:27:07,147 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 06:27:07" (1/1) ... [2020-11-12 06:27:07,162 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 06:27:07" (1/1) ... [2020-11-12 06:27:07,184 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-12 06:27:07,185 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-12 06:27:07,185 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-12 06:27:07,185 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-12 06:27:07,194 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 06:27:07" (1/1) ... [2020-11-12 06:27:07,194 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 06:27:07" (1/1) ... [2020-11-12 06:27:07,197 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 06:27:07" (1/1) ... [2020-11-12 06:27:07,198 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 06:27:07" (1/1) ... [2020-11-12 06:27:07,204 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 06:27:07" (1/1) ... [2020-11-12 06:27:07,206 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 06:27:07" (1/1) ... [2020-11-12 06:27:07,208 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 06:27:07" (1/1) ... [2020-11-12 06:27:07,211 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-12 06:27:07,212 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-12 06:27:07,212 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-12 06:27:07,212 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-12 06:27:07,213 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 06:27:07" (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 06:27:07,291 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-12 06:27:07,291 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-11-12 06:27:07,291 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-12 06:27:07,292 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-12 06:27:07,292 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-11-12 06:27:07,292 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-11-12 06:27:07,292 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-11-12 06:27:07,292 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-11-12 06:27:07,293 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-12 06:27:07,293 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-11-12 06:27:07,293 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-12 06:27:07,293 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-12 06:27:07,295 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 06:27:07,694 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-12 06:27:07,695 INFO L298 CfgBuilder]: Removed 10 assume(true) statements. [2020-11-12 06:27:07,697 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 06:27:07 BoogieIcfgContainer [2020-11-12 06:27:07,697 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-12 06:27:07,698 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-12 06:27:07,699 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-12 06:27:07,705 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-12 06:27:07,707 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 06:27:06" (1/3) ... [2020-11-12 06:27:07,708 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@679b6b09 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 06:27:07, skipping insertion in model container [2020-11-12 06:27:07,708 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 06:27:07" (2/3) ... [2020-11-12 06:27:07,709 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@679b6b09 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 06:27:07, skipping insertion in model container [2020-11-12 06:27:07,709 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 06:27:07" (3/3) ... [2020-11-12 06:27:07,711 INFO L111 eAbstractionObserver]: Analyzing ICFG thin000_tso.opt.i [2020-11-12 06:27:07,727 WARN L168 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-11-12 06:27:07,728 INFO L179 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-12 06:27:07,732 INFO L191 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-12 06:27:07,733 INFO L351 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-11-12 06:27:07,776 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:27:07,777 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:27:07,777 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:27:07,777 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:27:07,777 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:27:07,778 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:27:07,778 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:27:07,778 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:27:07,780 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:27:07,780 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:27:07,780 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:27:07,781 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:27:07,781 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:27:07,782 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:27:07,782 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:27:07,782 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:27:07,782 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:27:07,783 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:27:07,783 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:27:07,783 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:27:07,784 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:27:07,784 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:27:07,784 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:27:07,784 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:27:07,788 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:27:07,789 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:27:07,789 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:27:07,790 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:27:07,799 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:27:07,800 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:27:07,800 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:27:07,801 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:27:07,809 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2020-11-12 06:27:07,825 INFO L253 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2020-11-12 06:27:07,862 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-12 06:27:07,862 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-12 06:27:07,863 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-12 06:27:07,863 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-12 06:27:07,863 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-12 06:27:07,864 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-12 06:27:07,864 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-12 06:27:07,864 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-12 06:27:07,881 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 69 places, 65 transitions, 140 flow [2020-11-12 06:27:07,983 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 1321 states, 1319 states have (on average 2.7498104624715696) internal successors, (3627), 1320 states have internal predecessors, (3627), 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 06:27:08,239 WARN L455 BasicCegarLoop]: Sleep Set Reduction Time: 248ms [2020-11-12 06:27:08,243 WARN L456 BasicCegarLoop]: Sleep set: input automaton has 1321 states, 1319 states have (on average 2.7498104624715696) internal successors, (3627), 1320 states have internal predecessors, (3627), 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 06:27:08,246 WARN L457 BasicCegarLoop]: Sleep set: output automaton has 1321 states, 1216 states have (on average 1.3133223684210527) internal successors, (1597), 1320 states have internal predecessors, (1597), 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 06:27:08,251 INFO L276 IsEmpty]: Start isEmpty. Operand has 1321 states, 1216 states have (on average 1.3133223684210527) internal successors, (1597), 1320 states have internal predecessors, (1597), 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 06:27:08,261 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2020-11-12 06:27:08,261 INFO L486 BasicCegarLoop]: Found error trace [2020-11-12 06:27:08,262 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] [2020-11-12 06:27:08,263 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-12 06:27:08,269 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-12 06:27:08,269 INFO L82 PathProgramCache]: Analyzing trace with hash 1210534896, now seen corresponding path program 1 times [2020-11-12 06:27:08,277 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-12 06:27:08,278 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1244097246] [2020-11-12 06:27:08,278 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-12 06:27:08,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-12 06:27:08,682 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 06:27:08,683 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1244097246] [2020-11-12 06:27:08,684 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-12 06:27:08,684 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-11-12 06:27:08,685 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [21033680] [2020-11-12 06:27:08,688 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-12 06:27:08,688 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-12 06:27:08,703 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-12 06:27:08,704 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-11-12 06:27:08,709 INFO L87 Difference]: Start difference. First operand has 1321 states, 1216 states have (on average 1.3133223684210527) internal successors, (1597), 1320 states have internal predecessors, (1597), 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 6.166666666666667) internal successors, (37), 6 states have internal predecessors, (37), 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 06:27:08,889 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-12 06:27:08,889 INFO L93 Difference]: Finished difference Result 1587 states and 1734 transitions. [2020-11-12 06:27:08,890 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-11-12 06:27:08,891 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.166666666666667) internal successors, (37), 6 states have internal predecessors, (37), 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 37 [2020-11-12 06:27:08,892 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-12 06:27:08,908 INFO L225 Difference]: With dead ends: 1587 [2020-11-12 06:27:08,908 INFO L226 Difference]: Without dead ends: 544 [2020-11-12 06:27:08,910 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 06:27:08,937 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 544 states. [2020-11-12 06:27:08,990 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 544 to 544. [2020-11-12 06:27:08,996 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 544 states, 509 states have (on average 1.2593320235756384) internal successors, (641), 543 states have internal predecessors, (641), 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 06:27:09,000 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 544 states to 544 states and 641 transitions. [2020-11-12 06:27:09,003 INFO L78 Accepts]: Start accepts. Automaton has 544 states and 641 transitions. Word has length 37 [2020-11-12 06:27:09,003 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-12 06:27:09,003 INFO L481 AbstractCegarLoop]: Abstraction has 544 states and 641 transitions. [2020-11-12 06:27:09,004 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 6.166666666666667) internal successors, (37), 6 states have internal predecessors, (37), 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 06:27:09,004 INFO L276 IsEmpty]: Start isEmpty. Operand 544 states and 641 transitions. [2020-11-12 06:27:09,014 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2020-11-12 06:27:09,014 INFO L486 BasicCegarLoop]: Found error trace [2020-11-12 06:27:09,014 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] [2020-11-12 06:27:09,015 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-12 06:27:09,015 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-12 06:27:09,016 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-12 06:27:09,016 INFO L82 PathProgramCache]: Analyzing trace with hash -315660943, now seen corresponding path program 1 times [2020-11-12 06:27:09,018 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-12 06:27:09,018 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2028208445] [2020-11-12 06:27:09,018 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-12 06:27:09,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-12 06:27:09,214 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 06:27:09,215 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2028208445] [2020-11-12 06:27:09,215 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-12 06:27:09,216 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-11-12 06:27:09,216 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [272305653] [2020-11-12 06:27:09,217 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-12 06:27:09,218 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-12 06:27:09,219 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-12 06:27:09,219 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-11-12 06:27:09,219 INFO L87 Difference]: Start difference. First operand 544 states and 641 transitions. Second operand has 6 states, 6 states have (on average 6.5) internal successors, (39), 6 states have internal predecessors, (39), 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 06:27:09,342 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-12 06:27:09,342 INFO L93 Difference]: Finished difference Result 604 states and 716 transitions. [2020-11-12 06:27:09,343 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-11-12 06:27:09,343 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.5) internal successors, (39), 6 states have internal predecessors, (39), 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 39 [2020-11-12 06:27:09,343 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-12 06:27:09,346 INFO L225 Difference]: With dead ends: 604 [2020-11-12 06:27:09,346 INFO L226 Difference]: Without dead ends: 414 [2020-11-12 06:27:09,347 INFO L749 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2020-11-12 06:27:09,350 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 414 states. [2020-11-12 06:27:09,362 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 414 to 414. [2020-11-12 06:27:09,364 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 414 states, 389 states have (on average 1.2647814910025708) internal successors, (492), 413 states have internal predecessors, (492), 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 06:27:09,365 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 414 states to 414 states and 492 transitions. [2020-11-12 06:27:09,366 INFO L78 Accepts]: Start accepts. Automaton has 414 states and 492 transitions. Word has length 39 [2020-11-12 06:27:09,366 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-12 06:27:09,366 INFO L481 AbstractCegarLoop]: Abstraction has 414 states and 492 transitions. [2020-11-12 06:27:09,366 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 6.5) internal successors, (39), 6 states have internal predecessors, (39), 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 06:27:09,367 INFO L276 IsEmpty]: Start isEmpty. Operand 414 states and 492 transitions. [2020-11-12 06:27:09,368 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2020-11-12 06:27:09,368 INFO L486 BasicCegarLoop]: Found error trace [2020-11-12 06:27:09,369 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] [2020-11-12 06:27:09,369 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-12 06:27:09,369 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-12 06:27:09,370 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-12 06:27:09,370 INFO L82 PathProgramCache]: Analyzing trace with hash -1732515504, now seen corresponding path program 1 times [2020-11-12 06:27:09,370 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-12 06:27:09,370 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1763715178] [2020-11-12 06:27:09,371 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-12 06:27:09,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-12 06:27:09,523 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-12 06:27:09,524 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1763715178] [2020-11-12 06:27:09,524 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-12 06:27:09,524 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-11-12 06:27:09,524 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [863170060] [2020-11-12 06:27:09,525 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-11-12 06:27:09,525 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-12 06:27:09,526 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-11-12 06:27:09,526 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-11-12 06:27:09,526 INFO L87 Difference]: Start difference. First operand 414 states and 492 transitions. Second operand has 7 states, 7 states have (on average 5.857142857142857) internal successors, (41), 7 states have internal predecessors, (41), 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 06:27:09,716 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-12 06:27:09,716 INFO L93 Difference]: Finished difference Result 594 states and 732 transitions. [2020-11-12 06:27:09,717 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-11-12 06:27:09,717 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 5.857142857142857) internal successors, (41), 7 states have internal predecessors, (41), 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 41 [2020-11-12 06:27:09,717 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-12 06:27:09,719 INFO L225 Difference]: With dead ends: 594 [2020-11-12 06:27:09,720 INFO L226 Difference]: Without dead ends: 330 [2020-11-12 06:27:09,720 INFO L749 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182 [2020-11-12 06:27:09,722 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 330 states. [2020-11-12 06:27:09,727 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 330 to 330. [2020-11-12 06:27:09,728 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 330 states, 310 states have (on average 1.267741935483871) internal successors, (393), 329 states have internal predecessors, (393), 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 06:27:09,730 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 330 states to 330 states and 393 transitions. [2020-11-12 06:27:09,730 INFO L78 Accepts]: Start accepts. Automaton has 330 states and 393 transitions. Word has length 41 [2020-11-12 06:27:09,730 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-12 06:27:09,730 INFO L481 AbstractCegarLoop]: Abstraction has 330 states and 393 transitions. [2020-11-12 06:27:09,731 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 5.857142857142857) internal successors, (41), 7 states have internal predecessors, (41), 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 06:27:09,731 INFO L276 IsEmpty]: Start isEmpty. Operand 330 states and 393 transitions. [2020-11-12 06:27:09,732 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2020-11-12 06:27:09,732 INFO L486 BasicCegarLoop]: Found error trace [2020-11-12 06:27:09,732 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] [2020-11-12 06:27:09,732 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-11-12 06:27:09,733 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-12 06:27:09,733 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-12 06:27:09,733 INFO L82 PathProgramCache]: Analyzing trace with hash -1815316434, now seen corresponding path program 1 times [2020-11-12 06:27:09,734 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-12 06:27:09,734 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [385810475] [2020-11-12 06:27:09,734 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-12 06:27:09,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-12 06:27:09,851 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 06:27:09,851 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [385810475] [2020-11-12 06:27:09,852 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-12 06:27:09,852 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-11-12 06:27:09,852 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1715198923] [2020-11-12 06:27:09,852 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-11-12 06:27:09,853 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-12 06:27:09,853 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-11-12 06:27:09,854 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-11-12 06:27:09,854 INFO L87 Difference]: Start difference. First operand 330 states and 393 transitions. Second operand has 7 states, 7 states have (on average 6.0) internal successors, (42), 7 states have internal predecessors, (42), 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 06:27:09,985 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-12 06:27:09,986 INFO L93 Difference]: Finished difference Result 250 states and 313 transitions. [2020-11-12 06:27:09,986 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-11-12 06:27:09,986 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.0) internal successors, (42), 7 states have internal predecessors, (42), 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 42 [2020-11-12 06:27:09,987 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-12 06:27:09,987 INFO L225 Difference]: With dead ends: 250 [2020-11-12 06:27:09,987 INFO L226 Difference]: Without dead ends: 0 [2020-11-12 06:27:09,987 INFO L749 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182 [2020-11-12 06:27:09,988 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-11-12 06:27:09,988 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-11-12 06:27:09,988 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 06:27:09,988 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-11-12 06:27:09,988 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 42 [2020-11-12 06:27:09,989 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-12 06:27:09,989 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-12 06:27:09,989 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 6.0) internal successors, (42), 7 states have internal predecessors, (42), 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 06:27:09,989 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-11-12 06:27:09,989 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-12 06:27:09,989 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-11-12 06:27:09,994 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.11 06:27:09 BasicIcfg [2020-11-12 06:27:09,994 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-12 06:27:09,997 INFO L168 Benchmark]: Toolchain (without parser) took 3530.56 ms. Allocated memory is still 302.0 MB. Free memory was 273.2 MB in the beginning and 219.6 MB in the end (delta: 53.6 MB). Peak memory consumption was 54.5 MB. Max. memory is 16.0 GB. [2020-11-12 06:27:09,997 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 302.0 MB. Free memory is still 272.8 MB. There was no memory consumed. Max. memory is 16.0 GB. [2020-11-12 06:27:09,998 INFO L168 Benchmark]: CACSL2BoogieTranslator took 663.84 ms. Allocated memory is still 302.0 MB. Free memory was 272.5 MB in the beginning and 262.9 MB in the end (delta: 9.7 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.0 GB. [2020-11-12 06:27:09,999 INFO L168 Benchmark]: Boogie Procedure Inliner took 46.26 ms. Allocated memory is still 302.0 MB. Free memory was 262.9 MB in the beginning and 261.2 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2020-11-12 06:27:10,000 INFO L168 Benchmark]: Boogie Preprocessor took 26.65 ms. Allocated memory is still 302.0 MB. Free memory was 261.2 MB in the beginning and 260.2 MB in the end (delta: 1.0 MB). There was no memory consumed. Max. memory is 16.0 GB. [2020-11-12 06:27:10,001 INFO L168 Benchmark]: RCFGBuilder took 484.87 ms. Allocated memory is still 302.0 MB. Free memory was 260.2 MB in the beginning and 238.1 MB in the end (delta: 22.0 MB). Peak memory consumption was 23.1 MB. Max. memory is 16.0 GB. [2020-11-12 06:27:10,001 INFO L168 Benchmark]: TraceAbstraction took 2295.90 ms. Allocated memory is still 302.0 MB. Free memory was 238.1 MB in the beginning and 219.6 MB in the end (delta: 18.5 MB). Peak memory consumption was 20.6 MB. Max. memory is 16.0 GB. [2020-11-12 06:27:10,005 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 302.0 MB. Free memory is still 272.8 MB. There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 663.84 ms. Allocated memory is still 302.0 MB. Free memory was 272.5 MB in the beginning and 262.9 MB in the end (delta: 9.7 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 46.26 ms. Allocated memory is still 302.0 MB. Free memory was 262.9 MB in the beginning and 261.2 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 26.65 ms. Allocated memory is still 302.0 MB. Free memory was 261.2 MB in the beginning and 260.2 MB in the end (delta: 1.0 MB). There was no memory consumed. Max. memory is 16.0 GB. * RCFGBuilder took 484.87 ms. Allocated memory is still 302.0 MB. Free memory was 260.2 MB in the beginning and 238.1 MB in the end (delta: 22.0 MB). Peak memory consumption was 23.1 MB. Max. memory is 16.0 GB. * TraceAbstraction took 2295.90 ms. Allocated memory is still 302.0 MB. Free memory was 238.1 MB in the beginning and 219.6 MB in the end (delta: 18.5 MB). Peak memory consumption was 20.6 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 3 procedures, 63 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 2.1s, OverallIterations: 4, TraceHistogramMax: 1, AutomataDifference: 0.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.3s, HoareTripleCheckerStatistics: 220 SDtfs, 264 SDslu, 826 SDs, 0 SdLazy, 84 SolverSat, 4 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 50 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1321occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 4 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 159 NumberOfCodeBlocks, 159 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 155 ConstructedInterpolants, 0 QuantifiedInterpolants, 17567 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 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...