/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-wmm/safe027_tso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.2.0-60729f1 [2020-11-11 18:14:25,815 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-11 18:14:25,819 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-11 18:14:25,876 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-11 18:14:25,876 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-11 18:14:25,880 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-11 18:14:25,884 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-11 18:14:25,893 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-11 18:14:25,897 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-11 18:14:25,898 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-11 18:14:25,900 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-11 18:14:25,901 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-11 18:14:25,902 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-11 18:14:25,908 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-11 18:14:25,910 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-11 18:14:25,911 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-11 18:14:25,912 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-11 18:14:25,913 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-11 18:14:25,915 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-11 18:14:25,917 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-11 18:14:25,919 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-11 18:14:25,922 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-11 18:14:25,924 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-11 18:14:25,925 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-11 18:14:25,928 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-11 18:14:25,929 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-11 18:14:25,929 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-11 18:14:25,930 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-11 18:14:25,931 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-11 18:14:25,932 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-11 18:14:25,932 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-11 18:14:25,933 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-11 18:14:25,934 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-11 18:14:25,935 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-11 18:14:25,937 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-11 18:14:25,937 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-11 18:14:25,938 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-11 18:14:25,938 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-11 18:14:25,939 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-11 18:14:25,940 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-11 18:14:25,941 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-11 18:14:25,942 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 [2020-11-11 18:14:25,970 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-11 18:14:25,971 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-11 18:14:25,972 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-11 18:14:25,973 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-11 18:14:25,973 INFO L138 SettingsManager]: * Use SBE=true [2020-11-11 18:14:25,973 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-11 18:14:25,973 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-11 18:14:25,974 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-11 18:14:25,974 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-11 18:14:25,974 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-11 18:14:25,974 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-11 18:14:25,974 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-11 18:14:25,975 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-11 18:14:25,975 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-11 18:14:25,975 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-11 18:14:25,975 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-11 18:14:25,976 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-11 18:14:25,976 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-11 18:14:25,976 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-11 18:14:25,976 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-11 18:14:25,976 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-11 18:14:25,977 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-11 18:14:25,977 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-11 18:14:25,977 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-11 18:14:25,978 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-11 18:14:25,978 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-11 18:14:25,978 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-11 18:14:25,978 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2020-11-11 18:14:25,978 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-11 18:14:25,979 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-11-11 18:14:26,338 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-11 18:14:26,364 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-11 18:14:26,367 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-11 18:14:26,369 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-11 18:14:26,369 INFO L275 PluginConnector]: CDTParser initialized [2020-11-11 18:14:26,370 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe027_tso.opt.i [2020-11-11 18:14:26,479 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cb80470ec/893d6c010a84423494b250b19447d369/FLAGa95079419 [2020-11-11 18:14:27,238 INFO L306 CDTParser]: Found 1 translation units. [2020-11-11 18:14:27,239 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe027_tso.opt.i [2020-11-11 18:14:27,254 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cb80470ec/893d6c010a84423494b250b19447d369/FLAGa95079419 [2020-11-11 18:14:27,441 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cb80470ec/893d6c010a84423494b250b19447d369 [2020-11-11 18:14:27,444 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-11 18:14:27,451 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-11-11 18:14:27,453 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-11 18:14:27,453 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-11 18:14:27,457 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-11 18:14:27,458 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.11 06:14:27" (1/1) ... [2020-11-11 18:14:27,462 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@337f3f83 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 06:14:27, skipping insertion in model container [2020-11-11 18:14:27,462 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.11 06:14:27" (1/1) ... [2020-11-11 18:14:27,471 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-11 18:14:27,514 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-11 18:14:27,992 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-11 18:14:28,009 INFO L203 MainTranslator]: Completed pre-run [2020-11-11 18:14:28,100 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-11 18:14:28,212 INFO L208 MainTranslator]: Completed translation [2020-11-11 18:14:28,213 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 06:14:28 WrapperNode [2020-11-11 18:14:28,213 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-11 18:14:28,214 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-11 18:14:28,215 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-11 18:14:28,215 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-11 18:14:28,224 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 06:14:28" (1/1) ... [2020-11-11 18:14:28,240 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 06:14:28" (1/1) ... [2020-11-11 18:14:28,271 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-11 18:14:28,272 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-11 18:14:28,272 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-11 18:14:28,273 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-11 18:14:28,282 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 06:14:28" (1/1) ... [2020-11-11 18:14:28,283 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 06:14:28" (1/1) ... [2020-11-11 18:14:28,286 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 06:14:28" (1/1) ... [2020-11-11 18:14:28,287 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 06:14:28" (1/1) ... [2020-11-11 18:14:28,294 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 06:14:28" (1/1) ... [2020-11-11 18:14:28,296 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 06:14:28" (1/1) ... [2020-11-11 18:14:28,303 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 06:14:28" (1/1) ... [2020-11-11 18:14:28,309 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-11 18:14:28,310 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-11 18:14:28,310 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-11 18:14:28,311 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-11 18:14:28,315 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 06:14:28" (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 [2020-11-11 18:14:28,394 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-11 18:14:28,395 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-11-11 18:14:28,395 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-11 18:14:28,395 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-11 18:14:28,395 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-11-11 18:14:28,395 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-11-11 18:14:28,395 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-11-11 18:14:28,396 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-11-11 18:14:28,396 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-11-11 18:14:28,396 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-11-11 18:14:28,396 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2020-11-11 18:14:28,396 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2020-11-11 18:14:28,396 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-11 18:14:28,397 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-11-11 18:14:28,397 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-11 18:14:28,397 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-11 18:14:28,399 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-11-11 18:14:28,879 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-11 18:14:28,880 INFO L298 CfgBuilder]: Removed 10 assume(true) statements. [2020-11-11 18:14:28,882 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.11 06:14:28 BoogieIcfgContainer [2020-11-11 18:14:28,883 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-11 18:14:28,884 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-11 18:14:28,884 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-11 18:14:28,888 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-11 18:14:28,889 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.11 06:14:27" (1/3) ... [2020-11-11 18:14:28,889 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@98b6f16 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.11 06:14:28, skipping insertion in model container [2020-11-11 18:14:28,890 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 06:14:28" (2/3) ... [2020-11-11 18:14:28,890 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@98b6f16 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.11 06:14:28, skipping insertion in model container [2020-11-11 18:14:28,890 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.11 06:14:28" (3/3) ... [2020-11-11 18:14:28,892 INFO L111 eAbstractionObserver]: Analyzing ICFG safe027_tso.opt.i [2020-11-11 18:14:28,909 WARN L168 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-11-11 18:14:28,909 INFO L179 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-11 18:14:28,913 INFO L191 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-11 18:14:28,914 INFO L351 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-11-11 18:14:28,954 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:14:28,954 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:14:28,954 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:14:28,954 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:14:28,955 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:14:28,955 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:14:28,955 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:14:28,955 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:14:28,956 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:14:28,956 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:14:28,956 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:14:28,957 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:14:28,957 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:14:28,957 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:14:28,957 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:14:28,958 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:14:28,958 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:14:28,958 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:14:28,958 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:14:28,959 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:14:28,959 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:14:28,959 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:14:28,959 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:14:28,960 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:14:28,961 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:14:28,961 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:14:28,961 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:14:28,961 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:14:28,962 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:14:28,962 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:14:28,962 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:14:28,962 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:14:28,963 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:14:28,963 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:14:28,963 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:14:28,964 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:14:28,964 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:14:28,964 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:14:28,965 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:14:28,965 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:14:28,965 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:14:28,965 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:14:28,966 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:14:28,966 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:14:28,966 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:14:28,967 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:14:28,967 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:14:28,967 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:14:28,970 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:14:28,970 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:14:28,970 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:14:28,971 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:14:28,977 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:14:28,978 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:14:28,978 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:14:28,978 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:14:28,981 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:14:28,981 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:14:28,982 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:14:28,982 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:14:28,984 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:14:28,985 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:14:28,985 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:14:28,985 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:14:28,988 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2020-11-11 18:14:29,002 INFO L253 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2020-11-11 18:14:29,029 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-11 18:14:29,029 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-11 18:14:29,030 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-11 18:14:29,030 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-11 18:14:29,030 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-11 18:14:29,030 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-11 18:14:29,030 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-11 18:14:29,030 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-11 18:14:29,045 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 101 places, 91 transitions, 202 flow [2020-11-11 18:14:38,571 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 54313 states, 54311 states have (on average 4.420191121503931) internal successors, (240065), 54312 states have internal predecessors, (240065), 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) [2020-11-11 18:14:38,680 INFO L276 IsEmpty]: Start isEmpty. Operand has 54313 states, 54311 states have (on average 4.420191121503931) internal successors, (240065), 54312 states have internal predecessors, (240065), 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) [2020-11-11 18:14:38,793 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2020-11-11 18:14:38,793 INFO L486 BasicCegarLoop]: Found error trace [2020-11-11 18:14:38,794 INFO L494 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-11 18:14:38,795 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-11 18:14:38,803 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-11 18:14:38,803 INFO L82 PathProgramCache]: Analyzing trace with hash -1453792105, now seen corresponding path program 1 times [2020-11-11 18:14:38,815 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-11 18:14:38,816 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [450938450] [2020-11-11 18:14:38,816 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-11 18:14:39,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-11 18:14:39,587 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-11 18:14:39,588 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [450938450] [2020-11-11 18:14:39,589 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-11 18:14:39,589 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-11-11 18:14:39,590 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [373430484] [2020-11-11 18:14:39,595 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-11 18:14:39,596 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-11 18:14:39,611 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-11 18:14:39,612 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-11-11 18:14:39,685 INFO L87 Difference]: Start difference. First operand has 54313 states, 54311 states have (on average 4.420191121503931) internal successors, (240065), 54312 states have internal predecessors, (240065), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 6 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 18:14:41,352 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-11 18:14:41,353 INFO L93 Difference]: Finished difference Result 68929 states and 296105 transitions. [2020-11-11 18:14:41,353 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-11-11 18:14:41,358 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 6 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2020-11-11 18:14:41,359 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-11 18:14:41,740 INFO L225 Difference]: With dead ends: 68929 [2020-11-11 18:14:41,740 INFO L226 Difference]: Without dead ends: 23821 [2020-11-11 18:14:41,742 INFO L749 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2020-11-11 18:14:42,277 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23821 states. [2020-11-11 18:14:43,443 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23821 to 23821. [2020-11-11 18:14:43,488 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23821 states, 23820 states have (on average 4.223887489504618) internal successors, (100613), 23820 states have internal predecessors, (100613), 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) [2020-11-11 18:14:43,793 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23821 states to 23821 states and 100613 transitions. [2020-11-11 18:14:43,794 INFO L78 Accepts]: Start accepts. Automaton has 23821 states and 100613 transitions. Word has length 47 [2020-11-11 18:14:43,796 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-11 18:14:43,796 INFO L481 AbstractCegarLoop]: Abstraction has 23821 states and 100613 transitions. [2020-11-11 18:14:43,796 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 6 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 18:14:43,796 INFO L276 IsEmpty]: Start isEmpty. Operand 23821 states and 100613 transitions. [2020-11-11 18:14:43,854 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2020-11-11 18:14:43,854 INFO L486 BasicCegarLoop]: Found error trace [2020-11-11 18:14:43,855 INFO L494 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-11 18:14:43,855 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-11 18:14:43,855 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-11 18:14:43,856 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-11 18:14:43,856 INFO L82 PathProgramCache]: Analyzing trace with hash 2134201304, now seen corresponding path program 1 times [2020-11-11 18:14:43,857 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-11 18:14:43,857 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1272510935] [2020-11-11 18:14:43,857 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-11 18:14:43,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-11 18:14:44,039 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-11 18:14:44,039 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1272510935] [2020-11-11 18:14:44,040 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-11 18:14:44,040 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-11-11 18:14:44,040 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2034008833] [2020-11-11 18:14:44,042 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-11-11 18:14:44,042 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-11 18:14:44,043 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-11-11 18:14:44,043 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-11-11 18:14:44,044 INFO L87 Difference]: Start difference. First operand 23821 states and 100613 transitions. Second operand has 7 states, 7 states have (on average 7.0) internal successors, (49), 7 states have internal predecessors, (49), 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) [2020-11-11 18:14:44,886 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-11 18:14:44,886 INFO L93 Difference]: Finished difference Result 31381 states and 131411 transitions. [2020-11-11 18:14:44,887 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-11-11 18:14:44,887 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.0) internal successors, (49), 7 states have internal predecessors, (49), 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 49 [2020-11-11 18:14:44,887 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-11 18:14:44,973 INFO L225 Difference]: With dead ends: 31381 [2020-11-11 18:14:44,973 INFO L226 Difference]: Without dead ends: 16541 [2020-11-11 18:14:44,974 INFO L749 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182 [2020-11-11 18:14:45,090 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16541 states. [2020-11-11 18:14:45,843 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16541 to 16541. [2020-11-11 18:14:45,869 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16541 states, 16540 states have (on average 4.152055622732769) internal successors, (68675), 16540 states have internal predecessors, (68675), 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) [2020-11-11 18:14:45,939 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16541 states to 16541 states and 68675 transitions. [2020-11-11 18:14:45,939 INFO L78 Accepts]: Start accepts. Automaton has 16541 states and 68675 transitions. Word has length 49 [2020-11-11 18:14:45,940 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-11 18:14:45,940 INFO L481 AbstractCegarLoop]: Abstraction has 16541 states and 68675 transitions. [2020-11-11 18:14:45,940 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 7.0) internal successors, (49), 7 states have internal predecessors, (49), 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) [2020-11-11 18:14:45,940 INFO L276 IsEmpty]: Start isEmpty. Operand 16541 states and 68675 transitions. [2020-11-11 18:14:46,218 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2020-11-11 18:14:46,219 INFO L486 BasicCegarLoop]: Found error trace [2020-11-11 18:14:46,219 INFO L494 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-11 18:14:46,219 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-11 18:14:46,219 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-11 18:14:46,221 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-11 18:14:46,221 INFO L82 PathProgramCache]: Analyzing trace with hash -821966825, now seen corresponding path program 1 times [2020-11-11 18:14:46,221 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-11 18:14:46,221 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1674167165] [2020-11-11 18:14:46,222 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-11 18:14:46,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-11 18:14:46,486 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-11 18:14:46,486 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1674167165] [2020-11-11 18:14:46,486 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-11 18:14:46,487 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-11-11 18:14:46,487 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [854509671] [2020-11-11 18:14:46,487 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-11 18:14:46,488 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-11 18:14:46,488 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-11 18:14:46,489 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-11-11 18:14:46,489 INFO L87 Difference]: Start difference. First operand 16541 states and 68675 transitions. Second operand has 6 states, 6 states have (on average 8.5) internal successors, (51), 6 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 18:14:46,772 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-11 18:14:46,773 INFO L93 Difference]: Finished difference Result 17981 states and 73907 transitions. [2020-11-11 18:14:46,773 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-11-11 18:14:46,773 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.5) internal successors, (51), 6 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 51 [2020-11-11 18:14:46,774 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-11 18:14:46,854 INFO L225 Difference]: With dead ends: 17981 [2020-11-11 18:14:46,855 INFO L226 Difference]: Without dead ends: 14621 [2020-11-11 18:14:46,856 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 [2020-11-11 18:14:46,956 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14621 states. [2020-11-11 18:14:47,374 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14621 to 14621. [2020-11-11 18:14:47,393 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14621 states, 14620 states have (on average 4.121682626538988) internal successors, (60259), 14620 states have internal predecessors, (60259), 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) [2020-11-11 18:14:47,465 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14621 states to 14621 states and 60259 transitions. [2020-11-11 18:14:47,465 INFO L78 Accepts]: Start accepts. Automaton has 14621 states and 60259 transitions. Word has length 51 [2020-11-11 18:14:47,466 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-11 18:14:47,466 INFO L481 AbstractCegarLoop]: Abstraction has 14621 states and 60259 transitions. [2020-11-11 18:14:47,466 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 8.5) internal successors, (51), 6 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 18:14:47,467 INFO L276 IsEmpty]: Start isEmpty. Operand 14621 states and 60259 transitions. [2020-11-11 18:14:47,736 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2020-11-11 18:14:47,737 INFO L486 BasicCegarLoop]: Found error trace [2020-11-11 18:14:47,737 INFO L494 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-11 18:14:47,737 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-11-11 18:14:47,737 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-11 18:14:47,738 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-11 18:14:47,738 INFO L82 PathProgramCache]: Analyzing trace with hash -1748725576, now seen corresponding path program 1 times [2020-11-11 18:14:47,738 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-11 18:14:47,739 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [322521725] [2020-11-11 18:14:47,739 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-11 18:14:47,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-11 18:14:47,902 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-11 18:14:47,902 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [322521725] [2020-11-11 18:14:47,902 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-11 18:14:47,903 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-11-11 18:14:47,903 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [294568570] [2020-11-11 18:14:47,903 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-11-11 18:14:47,903 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-11 18:14:47,904 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-11-11 18:14:47,904 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-11-11 18:14:47,905 INFO L87 Difference]: Start difference. First operand 14621 states and 60259 transitions. Second operand has 7 states, 7 states have (on average 7.571428571428571) internal successors, (53), 7 states have internal predecessors, (53), 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) [2020-11-11 18:14:48,219 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-11 18:14:48,220 INFO L93 Difference]: Finished difference Result 20061 states and 81751 transitions. [2020-11-11 18:14:48,220 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-11-11 18:14:48,220 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.571428571428571) internal successors, (53), 7 states have internal predecessors, (53), 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 53 [2020-11-11 18:14:48,221 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-11 18:14:48,253 INFO L225 Difference]: With dead ends: 20061 [2020-11-11 18:14:48,253 INFO L226 Difference]: Without dead ends: 10701 [2020-11-11 18:14:48,254 INFO L749 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182 [2020-11-11 18:14:48,322 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10701 states. [2020-11-11 18:14:48,593 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10701 to 10701. [2020-11-11 18:14:48,611 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10701 states, 10700 states have (on average 4.023271028037383) internal successors, (43049), 10700 states have internal predecessors, (43049), 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) [2020-11-11 18:14:48,660 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10701 states to 10701 states and 43049 transitions. [2020-11-11 18:14:48,661 INFO L78 Accepts]: Start accepts. Automaton has 10701 states and 43049 transitions. Word has length 53 [2020-11-11 18:14:48,661 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-11 18:14:48,661 INFO L481 AbstractCegarLoop]: Abstraction has 10701 states and 43049 transitions. [2020-11-11 18:14:48,661 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 7.571428571428571) internal successors, (53), 7 states have internal predecessors, (53), 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) [2020-11-11 18:14:48,666 INFO L276 IsEmpty]: Start isEmpty. Operand 10701 states and 43049 transitions. [2020-11-11 18:14:48,692 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2020-11-11 18:14:48,693 INFO L486 BasicCegarLoop]: Found error trace [2020-11-11 18:14:48,693 INFO L494 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-11 18:14:48,699 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-11-11 18:14:48,700 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-11 18:14:48,701 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-11 18:14:48,701 INFO L82 PathProgramCache]: Analyzing trace with hash 426422777, now seen corresponding path program 1 times [2020-11-11 18:14:48,702 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-11 18:14:48,702 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [673007525] [2020-11-11 18:14:48,702 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-11 18:14:48,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-11 18:14:48,920 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-11 18:14:48,920 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [673007525] [2020-11-11 18:14:48,920 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-11 18:14:48,921 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-11-11 18:14:48,921 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1486434812] [2020-11-11 18:14:48,921 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-11 18:14:48,922 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-11 18:14:48,923 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-11 18:14:48,924 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-11-11 18:14:48,924 INFO L87 Difference]: Start difference. First operand 10701 states and 43049 transitions. Second operand has 6 states, 6 states have (on average 9.166666666666666) internal successors, (55), 6 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 18:14:49,303 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-11 18:14:49,303 INFO L93 Difference]: Finished difference Result 14445 states and 57641 transitions. [2020-11-11 18:14:49,304 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-11-11 18:14:49,304 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.166666666666666) internal successors, (55), 6 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 55 [2020-11-11 18:14:49,304 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-11 18:14:49,341 INFO L225 Difference]: With dead ends: 14445 [2020-11-11 18:14:49,341 INFO L226 Difference]: Without dead ends: 10349 [2020-11-11 18:14:49,341 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 [2020-11-11 18:14:49,409 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10349 states. [2020-11-11 18:14:49,633 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10349 to 10349. [2020-11-11 18:14:49,649 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10349 states, 10348 states have (on average 4.005508310784693) internal successors, (41449), 10348 states have internal predecessors, (41449), 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) [2020-11-11 18:14:49,696 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10349 states to 10349 states and 41449 transitions. [2020-11-11 18:14:49,696 INFO L78 Accepts]: Start accepts. Automaton has 10349 states and 41449 transitions. Word has length 55 [2020-11-11 18:14:49,697 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-11 18:14:49,697 INFO L481 AbstractCegarLoop]: Abstraction has 10349 states and 41449 transitions. [2020-11-11 18:14:49,697 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 9.166666666666666) internal successors, (55), 6 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 18:14:49,697 INFO L276 IsEmpty]: Start isEmpty. Operand 10349 states and 41449 transitions. [2020-11-11 18:14:49,724 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2020-11-11 18:14:49,724 INFO L486 BasicCegarLoop]: Found error trace [2020-11-11 18:14:49,725 INFO L494 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-11 18:14:49,725 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-11-11 18:14:49,725 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-11 18:14:49,725 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-11 18:14:49,725 INFO L82 PathProgramCache]: Analyzing trace with hash 809833087, now seen corresponding path program 1 times [2020-11-11 18:14:49,726 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-11 18:14:49,726 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1911485700] [2020-11-11 18:14:49,726 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-11 18:14:49,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-11 18:14:49,909 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-11 18:14:49,910 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1911485700] [2020-11-11 18:14:49,910 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-11 18:14:49,910 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-11-11 18:14:49,910 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [899531771] [2020-11-11 18:14:49,911 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-11-11 18:14:49,911 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-11 18:14:49,912 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-11-11 18:14:49,912 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-11-11 18:14:49,912 INFO L87 Difference]: Start difference. First operand 10349 states and 41449 transitions. Second operand has 7 states, 7 states have (on average 8.0) internal successors, (56), 7 states have internal predecessors, (56), 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) [2020-11-11 18:14:50,211 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-11 18:14:50,211 INFO L93 Difference]: Finished difference Result 12701 states and 50085 transitions. [2020-11-11 18:14:50,212 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-11-11 18:14:50,212 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.0) internal successors, (56), 7 states have internal predecessors, (56), 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 56 [2020-11-11 18:14:50,213 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-11 18:14:50,254 INFO L225 Difference]: With dead ends: 12701 [2020-11-11 18:14:50,255 INFO L226 Difference]: Without dead ends: 8861 [2020-11-11 18:14:50,255 INFO L749 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=49, Invalid=107, Unknown=0, NotChecked=0, Total=156 [2020-11-11 18:14:50,479 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8861 states. [2020-11-11 18:14:50,675 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8861 to 8861. [2020-11-11 18:14:50,688 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8861 states, 8860 states have (on average 3.9283295711060946) internal successors, (34805), 8860 states have internal predecessors, (34805), 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) [2020-11-11 18:14:50,728 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8861 states to 8861 states and 34805 transitions. [2020-11-11 18:14:50,729 INFO L78 Accepts]: Start accepts. Automaton has 8861 states and 34805 transitions. Word has length 56 [2020-11-11 18:14:50,729 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-11 18:14:50,729 INFO L481 AbstractCegarLoop]: Abstraction has 8861 states and 34805 transitions. [2020-11-11 18:14:50,729 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 8.0) internal successors, (56), 7 states have internal predecessors, (56), 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) [2020-11-11 18:14:50,729 INFO L276 IsEmpty]: Start isEmpty. Operand 8861 states and 34805 transitions. [2020-11-11 18:14:50,756 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2020-11-11 18:14:50,756 INFO L486 BasicCegarLoop]: Found error trace [2020-11-11 18:14:50,757 INFO L494 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-11 18:14:50,757 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-11-11 18:14:50,757 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-11 18:14:50,758 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-11 18:14:50,758 INFO L82 PathProgramCache]: Analyzing trace with hash -1848601464, now seen corresponding path program 1 times [2020-11-11 18:14:50,758 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-11 18:14:50,759 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1624107720] [2020-11-11 18:14:50,759 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-11 18:14:50,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-11 18:14:50,904 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-11 18:14:50,904 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1624107720] [2020-11-11 18:14:50,905 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-11 18:14:50,905 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-11-11 18:14:50,905 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2103346002] [2020-11-11 18:14:50,906 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-11-11 18:14:50,906 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-11 18:14:50,906 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-11-11 18:14:50,907 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-11-11 18:14:50,908 INFO L87 Difference]: Start difference. First operand 8861 states and 34805 transitions. Second operand has 8 states, 8 states have (on average 7.125) internal successors, (57), 8 states have internal predecessors, (57), 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) [2020-11-11 18:14:51,197 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-11 18:14:51,197 INFO L93 Difference]: Finished difference Result 8960 states and 34343 transitions. [2020-11-11 18:14:51,199 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-11-11 18:14:51,199 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.125) internal successors, (57), 8 states have internal predecessors, (57), 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 57 [2020-11-11 18:14:51,199 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-11 18:14:51,215 INFO L225 Difference]: With dead ends: 8960 [2020-11-11 18:14:51,215 INFO L226 Difference]: Without dead ends: 6080 [2020-11-11 18:14:51,215 INFO L749 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=61, Invalid=149, Unknown=0, NotChecked=0, Total=210 [2020-11-11 18:14:51,246 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6080 states. [2020-11-11 18:14:51,366 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6080 to 6080. [2020-11-11 18:14:51,376 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6080 states, 6079 states have (on average 3.7726599769698965) internal successors, (22934), 6079 states have internal predecessors, (22934), 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) [2020-11-11 18:14:51,401 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6080 states to 6080 states and 22934 transitions. [2020-11-11 18:14:51,403 INFO L78 Accepts]: Start accepts. Automaton has 6080 states and 22934 transitions. Word has length 57 [2020-11-11 18:14:51,405 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-11 18:14:51,405 INFO L481 AbstractCegarLoop]: Abstraction has 6080 states and 22934 transitions. [2020-11-11 18:14:51,409 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 7.125) internal successors, (57), 8 states have internal predecessors, (57), 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) [2020-11-11 18:14:51,409 INFO L276 IsEmpty]: Start isEmpty. Operand 6080 states and 22934 transitions. [2020-11-11 18:14:51,421 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2020-11-11 18:14:51,421 INFO L486 BasicCegarLoop]: Found error trace [2020-11-11 18:14:51,422 INFO L494 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-11 18:14:51,422 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-11-11 18:14:51,422 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-11 18:14:51,422 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-11 18:14:51,422 INFO L82 PathProgramCache]: Analyzing trace with hash -1336651321, now seen corresponding path program 1 times [2020-11-11 18:14:51,423 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-11 18:14:51,423 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1886570353] [2020-11-11 18:14:51,424 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-11 18:14:51,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-11 18:14:51,602 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-11 18:14:51,603 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1886570353] [2020-11-11 18:14:51,603 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-11 18:14:51,603 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-11-11 18:14:51,604 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1159237534] [2020-11-11 18:14:51,604 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-11-11 18:14:51,604 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-11 18:14:51,605 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-11-11 18:14:51,605 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2020-11-11 18:14:51,605 INFO L87 Difference]: Start difference. First operand 6080 states and 22934 transitions. Second operand has 9 states, 9 states have (on average 6.555555555555555) internal successors, (59), 9 states have internal predecessors, (59), 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) [2020-11-11 18:14:52,008 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-11 18:14:52,008 INFO L93 Difference]: Finished difference Result 4838 states and 17777 transitions. [2020-11-11 18:14:52,009 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-11-11 18:14:52,009 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 6.555555555555555) internal successors, (59), 9 states have internal predecessors, (59), 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 59 [2020-11-11 18:14:52,009 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-11 18:14:52,021 INFO L225 Difference]: With dead ends: 4838 [2020-11-11 18:14:52,021 INFO L226 Difference]: Without dead ends: 3434 [2020-11-11 18:14:52,021 INFO L749 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=76, Invalid=196, Unknown=0, NotChecked=0, Total=272 [2020-11-11 18:14:52,039 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3434 states. [2020-11-11 18:14:52,120 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3434 to 3434. [2020-11-11 18:14:52,126 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3434 states, 3433 states have (on average 3.5974366443344015) internal successors, (12350), 3433 states have internal predecessors, (12350), 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) [2020-11-11 18:14:52,144 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3434 states to 3434 states and 12350 transitions. [2020-11-11 18:14:52,144 INFO L78 Accepts]: Start accepts. Automaton has 3434 states and 12350 transitions. Word has length 59 [2020-11-11 18:14:52,144 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-11 18:14:52,144 INFO L481 AbstractCegarLoop]: Abstraction has 3434 states and 12350 transitions. [2020-11-11 18:14:52,145 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 6.555555555555555) internal successors, (59), 9 states have internal predecessors, (59), 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) [2020-11-11 18:14:52,145 INFO L276 IsEmpty]: Start isEmpty. Operand 3434 states and 12350 transitions. [2020-11-11 18:14:52,154 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2020-11-11 18:14:52,154 INFO L486 BasicCegarLoop]: Found error trace [2020-11-11 18:14:52,154 INFO L494 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-11 18:14:52,154 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-11-11 18:14:52,155 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-11 18:14:52,155 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-11 18:14:52,155 INFO L82 PathProgramCache]: Analyzing trace with hash -106927622, now seen corresponding path program 1 times [2020-11-11 18:14:52,156 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-11 18:14:52,156 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1863279673] [2020-11-11 18:14:52,156 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-11 18:14:52,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-11 18:14:52,278 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-11 18:14:52,278 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1863279673] [2020-11-11 18:14:52,279 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-11 18:14:52,279 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-11-11 18:14:52,280 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [831458059] [2020-11-11 18:14:52,281 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-11-11 18:14:52,284 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-11 18:14:52,285 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-11-11 18:14:52,286 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-11-11 18:14:52,286 INFO L87 Difference]: Start difference. First operand 3434 states and 12350 transitions. Second operand has 7 states, 7 states have (on average 8.714285714285714) internal successors, (61), 7 states have internal predecessors, (61), 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) [2020-11-11 18:14:52,430 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-11 18:14:52,430 INFO L93 Difference]: Finished difference Result 5059 states and 18255 transitions. [2020-11-11 18:14:52,431 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-11-11 18:14:52,431 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.714285714285714) internal successors, (61), 7 states have internal predecessors, (61), 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 61 [2020-11-11 18:14:52,431 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-11 18:14:52,438 INFO L225 Difference]: With dead ends: 5059 [2020-11-11 18:14:52,438 INFO L226 Difference]: Without dead ends: 2282 [2020-11-11 18:14:52,439 INFO L749 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2020-11-11 18:14:52,450 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2282 states. [2020-11-11 18:14:52,487 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2282 to 2282. [2020-11-11 18:14:52,489 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2282 states, 2281 states have (on average 3.5484436650591844) internal successors, (8094), 2281 states have internal predecessors, (8094), 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) [2020-11-11 18:14:52,497 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2282 states to 2282 states and 8094 transitions. [2020-11-11 18:14:52,497 INFO L78 Accepts]: Start accepts. Automaton has 2282 states and 8094 transitions. Word has length 61 [2020-11-11 18:14:52,497 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-11 18:14:52,497 INFO L481 AbstractCegarLoop]: Abstraction has 2282 states and 8094 transitions. [2020-11-11 18:14:52,498 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 8.714285714285714) internal successors, (61), 7 states have internal predecessors, (61), 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) [2020-11-11 18:14:52,498 INFO L276 IsEmpty]: Start isEmpty. Operand 2282 states and 8094 transitions. [2020-11-11 18:14:52,501 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2020-11-11 18:14:52,502 INFO L486 BasicCegarLoop]: Found error trace [2020-11-11 18:14:52,502 INFO L494 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-11 18:14:52,502 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-11-11 18:14:52,502 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-11 18:14:52,502 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-11 18:14:52,502 INFO L82 PathProgramCache]: Analyzing trace with hash 903632240, now seen corresponding path program 2 times [2020-11-11 18:14:52,503 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-11 18:14:52,503 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1271456681] [2020-11-11 18:14:52,503 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-11 18:14:52,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-11 18:14:52,619 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-11 18:14:52,620 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1271456681] [2020-11-11 18:14:52,620 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-11 18:14:52,620 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-11-11 18:14:52,620 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1889582592] [2020-11-11 18:14:52,621 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-11-11 18:14:52,621 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-11 18:14:52,621 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-11-11 18:14:52,622 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-11-11 18:14:52,622 INFO L87 Difference]: Start difference. First operand 2282 states and 8094 transitions. Second operand has 7 states, 7 states have (on average 8.714285714285714) internal successors, (61), 7 states have internal predecessors, (61), 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) [2020-11-11 18:14:52,737 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-11 18:14:52,738 INFO L93 Difference]: Finished difference Result 1958 states and 6906 transitions. [2020-11-11 18:14:52,738 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-11-11 18:14:52,738 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.714285714285714) internal successors, (61), 7 states have internal predecessors, (61), 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 61 [2020-11-11 18:14:52,738 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-11 18:14:52,739 INFO L225 Difference]: With dead ends: 1958 [2020-11-11 18:14:52,739 INFO L226 Difference]: Without dead ends: 0 [2020-11-11 18:14:52,739 INFO L749 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2020-11-11 18:14:52,739 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-11-11 18:14:52,740 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-11-11 18:14:52,740 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) [2020-11-11 18:14:52,740 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-11-11 18:14:52,740 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 61 [2020-11-11 18:14:52,740 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-11 18:14:52,740 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-11 18:14:52,741 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 8.714285714285714) internal successors, (61), 7 states have internal predecessors, (61), 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) [2020-11-11 18:14:52,741 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-11-11 18:14:52,741 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-11 18:14:52,741 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-11-11 18:14:52,746 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.11 06:14:52 BasicIcfg [2020-11-11 18:14:52,746 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-11 18:14:52,749 INFO L168 Benchmark]: Toolchain (without parser) took 25301.53 ms. Allocated memory was 302.0 MB in the beginning and 9.1 GB in the end (delta: 8.8 GB). Free memory was 275.6 MB in the beginning and 8.2 GB in the end (delta: -7.9 GB). Peak memory consumption was 911.2 MB. Max. memory is 16.0 GB. [2020-11-11 18:14:52,750 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 302.0 MB. Free memory is still 270.7 MB. There was no memory consumed. Max. memory is 16.0 GB. [2020-11-11 18:14:52,752 INFO L168 Benchmark]: CACSL2BoogieTranslator took 760.42 ms. Allocated memory is still 302.0 MB. Free memory was 275.0 MB in the beginning and 274.2 MB in the end (delta: 758.3 kB). Peak memory consumption was 30.9 MB. Max. memory is 16.0 GB. [2020-11-11 18:14:52,755 INFO L168 Benchmark]: Boogie Procedure Inliner took 57.11 ms. Allocated memory is still 302.0 MB. Free memory was 274.2 MB in the beginning and 272.1 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2020-11-11 18:14:52,755 INFO L168 Benchmark]: Boogie Preprocessor took 37.25 ms. Allocated memory is still 302.0 MB. Free memory was 272.1 MB in the beginning and 271.1 MB in the end (delta: 1.0 MB). There was no memory consumed. Max. memory is 16.0 GB. [2020-11-11 18:14:52,760 INFO L168 Benchmark]: RCFGBuilder took 572.44 ms. Allocated memory is still 302.0 MB. Free memory was 271.1 MB in the beginning and 245.9 MB in the end (delta: 25.2 MB). Peak memory consumption was 25.2 MB. Max. memory is 16.0 GB. [2020-11-11 18:14:52,763 INFO L168 Benchmark]: TraceAbstraction took 23862.07 ms. Allocated memory was 302.0 MB in the beginning and 9.1 GB in the end (delta: 8.8 GB). Free memory was 245.9 MB in the beginning and 8.2 GB in the end (delta: -7.9 GB). Peak memory consumption was 880.3 MB. Max. memory is 16.0 GB. [2020-11-11 18:14:52,771 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 302.0 MB. Free memory is still 270.7 MB. There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 760.42 ms. Allocated memory is still 302.0 MB. Free memory was 275.0 MB in the beginning and 274.2 MB in the end (delta: 758.3 kB). Peak memory consumption was 30.9 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 57.11 ms. Allocated memory is still 302.0 MB. Free memory was 274.2 MB in the beginning and 272.1 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 37.25 ms. Allocated memory is still 302.0 MB. Free memory was 272.1 MB in the beginning and 271.1 MB in the end (delta: 1.0 MB). There was no memory consumed. Max. memory is 16.0 GB. * RCFGBuilder took 572.44 ms. Allocated memory is still 302.0 MB. Free memory was 271.1 MB in the beginning and 245.9 MB in the end (delta: 25.2 MB). Peak memory consumption was 25.2 MB. Max. memory is 16.0 GB. * TraceAbstraction took 23862.07 ms. Allocated memory was 302.0 MB in the beginning and 9.1 GB in the end (delta: 8.8 GB). Free memory was 245.9 MB in the beginning and 8.2 GB in the end (delta: -7.9 GB). Peak memory consumption was 880.3 MB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 17]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 89 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 23.7s, OverallIterations: 10, TraceHistogramMax: 1, AutomataDifference: 5.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 9.5s, HoareTripleCheckerStatistics: 1097 SDtfs, 1834 SDslu, 3649 SDs, 0 SdLazy, 443 SolverSat, 114 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 129 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 108 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 118 ImplicationChecksByTransitivity, 2.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=54313occurred 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: 5.2s AutomataMinimizationTime, 10 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 1.6s InterpolantComputationTime, 549 NumberOfCodeBlocks, 549 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 539 ConstructedInterpolants, 0 QuantifiedInterpolants, 83341 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 10 InterpolantComputations, 10 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...