/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/safe015_tso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.2.0-e5469eb [2021-01-20 14:43:36,807 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-01-20 14:43:36,810 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-01-20 14:43:36,849 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-01-20 14:43:36,850 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-01-20 14:43:36,852 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-01-20 14:43:36,854 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-01-20 14:43:36,856 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-01-20 14:43:36,859 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-01-20 14:43:36,860 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-01-20 14:43:36,862 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-01-20 14:43:36,864 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-01-20 14:43:36,864 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-01-20 14:43:36,866 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-01-20 14:43:36,870 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-01-20 14:43:36,872 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-01-20 14:43:36,873 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-01-20 14:43:36,874 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-01-20 14:43:36,876 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-01-20 14:43:36,879 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-01-20 14:43:36,881 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-01-20 14:43:36,883 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-01-20 14:43:36,884 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-01-20 14:43:36,885 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-01-20 14:43:36,889 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-01-20 14:43:36,889 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-01-20 14:43:36,890 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-01-20 14:43:36,891 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-01-20 14:43:36,892 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-01-20 14:43:36,893 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-01-20 14:43:36,893 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-01-20 14:43:36,894 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-01-20 14:43:36,896 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-01-20 14:43:36,897 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-01-20 14:43:36,898 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-01-20 14:43:36,898 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-01-20 14:43:36,899 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-01-20 14:43:36,900 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-01-20 14:43:36,900 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-01-20 14:43:36,902 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-01-20 14:43:36,903 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-01-20 14:43:36,904 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe.epf [2021-01-20 14:43:36,936 INFO L113 SettingsManager]: Loading preferences was successful [2021-01-20 14:43:36,937 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-01-20 14:43:36,938 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-01-20 14:43:36,939 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-01-20 14:43:36,939 INFO L138 SettingsManager]: * Use SBE=true [2021-01-20 14:43:36,940 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-01-20 14:43:36,940 INFO L138 SettingsManager]: * sizeof long=4 [2021-01-20 14:43:36,940 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-01-20 14:43:36,941 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-01-20 14:43:36,941 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-01-20 14:43:36,941 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-01-20 14:43:36,942 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-01-20 14:43:36,942 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-01-20 14:43:36,942 INFO L138 SettingsManager]: * sizeof long double=12 [2021-01-20 14:43:36,943 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-01-20 14:43:36,943 INFO L138 SettingsManager]: * Use constant arrays=true [2021-01-20 14:43:36,943 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-01-20 14:43:36,944 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-01-20 14:43:36,944 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-01-20 14:43:36,944 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-01-20 14:43:36,944 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-01-20 14:43:36,945 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-01-20 14:43:36,945 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-01-20 14:43:36,945 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-01-20 14:43:36,946 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-01-20 14:43:36,946 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-01-20 14:43:36,946 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-01-20 14:43:36,946 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-01-20 14:43:36,947 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-01-20 14:43:36,947 INFO L138 SettingsManager]: * Minimization of abstraction=NONE [2021-01-20 14:43:36,947 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-01-20 14:43:37,365 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-01-20 14:43:37,397 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-01-20 14:43:37,400 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-01-20 14:43:37,402 INFO L271 PluginConnector]: Initializing CDTParser... [2021-01-20 14:43:37,402 INFO L275 PluginConnector]: CDTParser initialized [2021-01-20 14:43:37,405 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe015_tso.opt.i [2021-01-20 14:43:37,506 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9ba3f4e06/97e5ce2be8294dca834847a4340ea228/FLAG590f37ad6 [2021-01-20 14:43:38,184 INFO L306 CDTParser]: Found 1 translation units. [2021-01-20 14:43:38,186 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe015_tso.opt.i [2021-01-20 14:43:38,217 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9ba3f4e06/97e5ce2be8294dca834847a4340ea228/FLAG590f37ad6 [2021-01-20 14:43:38,469 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9ba3f4e06/97e5ce2be8294dca834847a4340ea228 [2021-01-20 14:43:38,472 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-01-20 14:43:38,475 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-01-20 14:43:38,479 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-01-20 14:43:38,479 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-01-20 14:43:38,485 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-01-20 14:43:38,486 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.01 02:43:38" (1/1) ... [2021-01-20 14:43:38,489 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@345af99d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 02:43:38, skipping insertion in model container [2021-01-20 14:43:38,489 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.01 02:43:38" (1/1) ... [2021-01-20 14:43:38,499 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-01-20 14:43:38,542 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-01-20 14:43:38,959 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-01-20 14:43:38,970 INFO L203 MainTranslator]: Completed pre-run [2021-01-20 14:43:39,016 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-01-20 14:43:39,112 INFO L208 MainTranslator]: Completed translation [2021-01-20 14:43:39,112 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 02:43:39 WrapperNode [2021-01-20 14:43:39,113 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-01-20 14:43:39,114 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-01-20 14:43:39,114 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-01-20 14:43:39,114 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-01-20 14:43:39,125 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 02:43:39" (1/1) ... [2021-01-20 14:43:39,143 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 02:43:39" (1/1) ... [2021-01-20 14:43:39,169 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-01-20 14:43:39,170 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-01-20 14:43:39,170 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-01-20 14:43:39,170 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-01-20 14:43:39,180 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 02:43:39" (1/1) ... [2021-01-20 14:43:39,180 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 02:43:39" (1/1) ... [2021-01-20 14:43:39,184 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 02:43:39" (1/1) ... [2021-01-20 14:43:39,184 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 02:43:39" (1/1) ... [2021-01-20 14:43:39,191 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 02:43:39" (1/1) ... [2021-01-20 14:43:39,194 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 02:43:39" (1/1) ... [2021-01-20 14:43:39,211 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 02:43:39" (1/1) ... [2021-01-20 14:43:39,219 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-01-20 14:43:39,221 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-01-20 14:43:39,221 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-01-20 14:43:39,221 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-01-20 14:43:39,225 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 02:43:39" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-01-20 14:43:39,335 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-01-20 14:43:39,335 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-01-20 14:43:39,336 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-01-20 14:43:39,336 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-01-20 14:43:39,337 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2021-01-20 14:43:39,337 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2021-01-20 14:43:39,338 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2021-01-20 14:43:39,339 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2021-01-20 14:43:39,340 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2021-01-20 14:43:39,340 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2021-01-20 14:43:39,340 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-01-20 14:43:39,340 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-01-20 14:43:39,340 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-01-20 14:43:39,341 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-01-20 14:43:39,343 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-01-20 14:43:39,901 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-01-20 14:43:39,901 INFO L298 CfgBuilder]: Removed 10 assume(true) statements. [2021-01-20 14:43:39,903 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.01 02:43:39 BoogieIcfgContainer [2021-01-20 14:43:39,904 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-01-20 14:43:39,905 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-01-20 14:43:39,906 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-01-20 14:43:39,909 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-01-20 14:43:39,910 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.01 02:43:38" (1/3) ... [2021-01-20 14:43:39,910 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5f88b0b9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.01 02:43:39, skipping insertion in model container [2021-01-20 14:43:39,911 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 02:43:39" (2/3) ... [2021-01-20 14:43:39,911 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5f88b0b9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.01 02:43:39, skipping insertion in model container [2021-01-20 14:43:39,911 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.01 02:43:39" (3/3) ... [2021-01-20 14:43:39,913 INFO L111 eAbstractionObserver]: Analyzing ICFG safe015_tso.opt.i [2021-01-20 14:43:39,929 WARN L168 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-01-20 14:43:39,929 INFO L179 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-01-20 14:43:39,933 INFO L191 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-01-20 14:43:39,935 INFO L351 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-01-20 14:43:39,966 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:43:39,967 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:43:39,967 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:43:39,967 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:43:39,967 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:43:39,967 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:43:39,968 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:43:39,968 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:43:39,968 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:43:39,968 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:43:39,969 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:43:39,969 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:43:39,969 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:43:39,970 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:43:39,970 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:43:39,970 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:43:39,970 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:43:39,970 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:43:39,970 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:43:39,971 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:43:39,971 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:43:39,971 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:43:39,971 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:43:39,972 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:43:39,972 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:43:39,972 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:43:39,973 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:43:39,973 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:43:39,973 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:43:39,973 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:43:39,973 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:43:39,973 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:43:39,974 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:43:39,974 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:43:39,974 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:43:39,975 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:43:39,977 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:43:39,978 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:43:39,978 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:43:39,978 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:43:39,985 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:43:39,985 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:43:39,985 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:43:39,985 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:43:39,990 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:43:39,990 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:43:39,990 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:43:39,990 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:43:39,993 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-01-20 14:43:40,006 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2021-01-20 14:43:40,031 INFO L377 AbstractCegarLoop]: Interprodecural is true [2021-01-20 14:43:40,031 INFO L378 AbstractCegarLoop]: Hoare is true [2021-01-20 14:43:40,031 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-01-20 14:43:40,031 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-01-20 14:43:40,031 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-01-20 14:43:40,032 INFO L382 AbstractCegarLoop]: Difference is false [2021-01-20 14:43:40,032 INFO L383 AbstractCegarLoop]: Minimize is NONE [2021-01-20 14:43:40,032 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-01-20 14:43:40,044 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 85 places, 78 transitions, 171 flow [2021-01-20 14:43:40,858 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 9847 states, 9845 states have (on average 3.614931437277806) internal successors, (35589), 9846 states have internal predecessors, (35589), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 14:43:40,916 INFO L276 IsEmpty]: Start isEmpty. Operand has 9847 states, 9845 states have (on average 3.614931437277806) internal successors, (35589), 9846 states have internal predecessors, (35589), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 14:43:40,976 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2021-01-20 14:43:40,976 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 14:43:40,977 INFO L504 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-20 14:43:40,978 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-20 14:43:40,985 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 14:43:40,985 INFO L82 PathProgramCache]: Analyzing trace with hash -1728151724, now seen corresponding path program 1 times [2021-01-20 14:43:40,996 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 14:43:40,997 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2108782198] [2021-01-20 14:43:40,997 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 14:43:41,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 14:43:41,439 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-20 14:43:41,440 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2108782198] [2021-01-20 14:43:41,441 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 14:43:41,441 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-01-20 14:43:41,442 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2049709223] [2021-01-20 14:43:41,447 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-01-20 14:43:41,448 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 14:43:41,463 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-01-20 14:43:41,464 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-01-20 14:43:41,535 INFO L87 Difference]: Start difference. First operand has 9847 states, 9845 states have (on average 3.614931437277806) internal successors, (35589), 9846 states have internal predecessors, (35589), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 6 states, 6 states have (on average 6.833333333333333) internal successors, (41), 6 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 14:43:41,996 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 14:43:41,997 INFO L93 Difference]: Finished difference Result 12199 states and 42463 transitions. [2021-01-20 14:43:41,997 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-01-20 14:43:41,999 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.833333333333333) internal successors, (41), 6 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 41 [2021-01-20 14:43:42,000 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 14:43:42,059 INFO L225 Difference]: With dead ends: 12199 [2021-01-20 14:43:42,059 INFO L226 Difference]: Without dead ends: 4604 [2021-01-20 14:43:42,061 INFO L769 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 [2021-01-20 14:43:42,061 INFO L78 Accepts]: Start accepts. Automaton has 4604 states. Word has length 41 [2021-01-20 14:43:42,063 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 14:43:42,064 INFO L481 AbstractCegarLoop]: Abstraction has 4604 states. [2021-01-20 14:43:42,064 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 6.833333333333333) internal successors, (41), 6 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 14:43:42,064 INFO L276 IsEmpty]: Start isEmpty. Operand 4604 states. [2021-01-20 14:43:42,079 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2021-01-20 14:43:42,079 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 14:43:42,079 INFO L504 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-20 14:43:42,080 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-01-20 14:43:42,080 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-20 14:43:42,081 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 14:43:42,081 INFO L82 PathProgramCache]: Analyzing trace with hash 1918466709, now seen corresponding path program 1 times [2021-01-20 14:43:42,081 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 14:43:42,081 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1872167479] [2021-01-20 14:43:42,082 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 14:43:42,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 14:43:42,230 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-20 14:43:42,230 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1872167479] [2021-01-20 14:43:42,231 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 14:43:42,231 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-01-20 14:43:42,231 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2048286264] [2021-01-20 14:43:42,233 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-01-20 14:43:42,233 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 14:43:42,234 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-01-20 14:43:42,234 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-01-20 14:43:42,235 INFO L87 Difference]: Start difference. First operand 4604 states. Second operand has 6 states, 6 states have (on average 7.166666666666667) internal successors, (43), 6 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 14:43:42,470 WARN L193 SmtUtils]: Spent 139.00 ms on a formula simplification that was a NOOP. DAG size: 14 [2021-01-20 14:43:42,613 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 14:43:42,613 INFO L93 Difference]: Finished difference Result 5192 states and 17515 transitions. [2021-01-20 14:43:42,614 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-01-20 14:43:42,614 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.166666666666667) internal successors, (43), 6 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 43 [2021-01-20 14:43:42,615 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 14:43:42,650 INFO L225 Difference]: With dead ends: 5192 [2021-01-20 14:43:42,650 INFO L226 Difference]: Without dead ends: 4212 [2021-01-20 14:43:42,651 INFO L769 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 [2021-01-20 14:43:42,652 INFO L78 Accepts]: Start accepts. Automaton has 4212 states. Word has length 43 [2021-01-20 14:43:42,652 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 14:43:42,652 INFO L481 AbstractCegarLoop]: Abstraction has 4212 states. [2021-01-20 14:43:42,652 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 7.166666666666667) internal successors, (43), 6 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 14:43:42,653 INFO L276 IsEmpty]: Start isEmpty. Operand 4212 states. [2021-01-20 14:43:42,664 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2021-01-20 14:43:42,665 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 14:43:42,665 INFO L504 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-20 14:43:42,665 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-01-20 14:43:42,666 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-20 14:43:42,666 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 14:43:42,667 INFO L82 PathProgramCache]: Analyzing trace with hash -795070177, now seen corresponding path program 1 times [2021-01-20 14:43:42,667 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 14:43:42,667 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [870701219] [2021-01-20 14:43:42,667 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 14:43:42,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 14:43:42,935 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-20 14:43:42,935 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [870701219] [2021-01-20 14:43:42,936 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 14:43:42,936 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-01-20 14:43:42,936 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1182666470] [2021-01-20 14:43:42,937 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-01-20 14:43:42,937 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 14:43:42,938 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-01-20 14:43:42,938 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-01-20 14:43:42,938 INFO L87 Difference]: Start difference. First operand 4212 states. Second operand has 6 states, 6 states have (on average 7.333333333333333) internal successors, (44), 6 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 14:43:43,119 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 14:43:43,120 INFO L93 Difference]: Finished difference Result 4548 states and 15227 transitions. [2021-01-20 14:43:43,120 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-01-20 14:43:43,120 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.333333333333333) internal successors, (44), 6 states have internal predecessors, (44), 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 44 [2021-01-20 14:43:43,121 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 14:43:43,153 INFO L225 Difference]: With dead ends: 4548 [2021-01-20 14:43:43,153 INFO L226 Difference]: Without dead ends: 3764 [2021-01-20 14:43:43,154 INFO L769 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 [2021-01-20 14:43:43,154 INFO L78 Accepts]: Start accepts. Automaton has 3764 states. Word has length 44 [2021-01-20 14:43:43,155 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 14:43:43,155 INFO L481 AbstractCegarLoop]: Abstraction has 3764 states. [2021-01-20 14:43:43,155 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 7.333333333333333) internal successors, (44), 6 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 14:43:43,155 INFO L276 IsEmpty]: Start isEmpty. Operand 3764 states. [2021-01-20 14:43:43,167 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2021-01-20 14:43:43,167 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 14:43:43,168 INFO L504 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-20 14:43:43,168 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-01-20 14:43:43,168 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-20 14:43:43,169 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 14:43:43,169 INFO L82 PathProgramCache]: Analyzing trace with hash 2081473022, now seen corresponding path program 1 times [2021-01-20 14:43:43,169 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 14:43:43,169 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [820465373] [2021-01-20 14:43:43,170 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 14:43:43,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 14:43:43,296 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-20 14:43:43,297 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [820465373] [2021-01-20 14:43:43,297 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 14:43:43,297 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-01-20 14:43:43,297 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [404424472] [2021-01-20 14:43:43,298 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-01-20 14:43:43,298 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 14:43:43,299 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-01-20 14:43:43,299 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-01-20 14:43:43,299 INFO L87 Difference]: Start difference. First operand 3764 states. Second operand has 6 states, 6 states have (on average 7.666666666666667) internal successors, (46), 6 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 14:43:43,514 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 14:43:43,514 INFO L93 Difference]: Finished difference Result 4260 states and 14187 transitions. [2021-01-20 14:43:43,514 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-01-20 14:43:43,515 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.666666666666667) internal successors, (46), 6 states have internal predecessors, (46), 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 46 [2021-01-20 14:43:43,515 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 14:43:43,543 INFO L225 Difference]: With dead ends: 4260 [2021-01-20 14:43:43,543 INFO L226 Difference]: Without dead ends: 3700 [2021-01-20 14:43:43,543 INFO L769 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 [2021-01-20 14:43:43,544 INFO L78 Accepts]: Start accepts. Automaton has 3700 states. Word has length 46 [2021-01-20 14:43:43,544 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 14:43:43,544 INFO L481 AbstractCegarLoop]: Abstraction has 3700 states. [2021-01-20 14:43:43,545 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 7.666666666666667) internal successors, (46), 6 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 14:43:43,545 INFO L276 IsEmpty]: Start isEmpty. Operand 3700 states. [2021-01-20 14:43:43,559 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2021-01-20 14:43:43,559 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 14:43:43,560 INFO L504 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-20 14:43:43,560 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-01-20 14:43:43,560 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-20 14:43:43,561 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 14:43:43,561 INFO L82 PathProgramCache]: Analyzing trace with hash -306051688, now seen corresponding path program 1 times [2021-01-20 14:43:43,561 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 14:43:43,562 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [242896580] [2021-01-20 14:43:43,562 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 14:43:43,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 14:43:43,666 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-20 14:43:43,667 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [242896580] [2021-01-20 14:43:43,667 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 14:43:43,667 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-01-20 14:43:43,668 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [416467859] [2021-01-20 14:43:43,668 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-01-20 14:43:43,668 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 14:43:43,669 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-01-20 14:43:43,669 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-01-20 14:43:43,670 INFO L87 Difference]: Start difference. First operand 3700 states. 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) [2021-01-20 14:43:43,857 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 14:43:43,858 INFO L93 Difference]: Finished difference Result 5832 states and 19226 transitions. [2021-01-20 14:43:43,858 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-01-20 14:43:43,858 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 [2021-01-20 14:43:43,859 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 14:43:43,876 INFO L225 Difference]: With dead ends: 5832 [2021-01-20 14:43:43,877 INFO L226 Difference]: Without dead ends: 4084 [2021-01-20 14:43:43,877 INFO L769 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 [2021-01-20 14:43:43,877 INFO L78 Accepts]: Start accepts. Automaton has 4084 states. Word has length 47 [2021-01-20 14:43:43,878 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 14:43:43,878 INFO L481 AbstractCegarLoop]: Abstraction has 4084 states. [2021-01-20 14:43:43,878 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) [2021-01-20 14:43:43,878 INFO L276 IsEmpty]: Start isEmpty. Operand 4084 states. [2021-01-20 14:43:43,889 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2021-01-20 14:43:43,889 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 14:43:43,889 INFO L504 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-20 14:43:43,890 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-01-20 14:43:43,890 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-20 14:43:43,890 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 14:43:43,891 INFO L82 PathProgramCache]: Analyzing trace with hash -1816760195, now seen corresponding path program 1 times [2021-01-20 14:43:43,891 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 14:43:43,891 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1209977817] [2021-01-20 14:43:43,891 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 14:43:43,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 14:43:44,017 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-20 14:43:44,017 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1209977817] [2021-01-20 14:43:44,018 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 14:43:44,018 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-01-20 14:43:44,018 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1172195631] [2021-01-20 14:43:44,018 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-01-20 14:43:44,019 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 14:43:44,019 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-01-20 14:43:44,020 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-01-20 14:43:44,020 INFO L87 Difference]: Start difference. First operand 4084 states. Second operand has 6 states, 6 states have (on average 8.0) internal successors, (48), 6 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 14:43:44,282 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 14:43:44,283 INFO L93 Difference]: Finished difference Result 5040 states and 16183 transitions. [2021-01-20 14:43:44,283 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-01-20 14:43:44,284 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.0) internal successors, (48), 6 states have internal predecessors, (48), 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 48 [2021-01-20 14:43:44,284 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 14:43:44,299 INFO L225 Difference]: With dead ends: 5040 [2021-01-20 14:43:44,299 INFO L226 Difference]: Without dead ends: 3668 [2021-01-20 14:43:44,300 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2021-01-20 14:43:44,300 INFO L78 Accepts]: Start accepts. Automaton has 3668 states. Word has length 48 [2021-01-20 14:43:44,300 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 14:43:44,301 INFO L481 AbstractCegarLoop]: Abstraction has 3668 states. [2021-01-20 14:43:44,301 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 8.0) internal successors, (48), 6 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 14:43:44,301 INFO L276 IsEmpty]: Start isEmpty. Operand 3668 states. [2021-01-20 14:43:44,311 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2021-01-20 14:43:44,311 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 14:43:44,312 INFO L504 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-20 14:43:44,312 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-01-20 14:43:44,312 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-20 14:43:44,313 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 14:43:44,313 INFO L82 PathProgramCache]: Analyzing trace with hash 1635595998, now seen corresponding path program 1 times [2021-01-20 14:43:44,313 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 14:43:44,313 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1830038111] [2021-01-20 14:43:44,314 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 14:43:44,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 14:43:44,482 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-20 14:43:44,483 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1830038111] [2021-01-20 14:43:44,483 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 14:43:44,483 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-01-20 14:43:44,484 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [250415547] [2021-01-20 14:43:44,484 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-01-20 14:43:44,484 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 14:43:44,490 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-01-20 14:43:44,490 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-01-20 14:43:44,491 INFO L87 Difference]: Start difference. First operand 3668 states. 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) [2021-01-20 14:43:44,725 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 14:43:44,725 INFO L93 Difference]: Finished difference Result 3584 states and 11133 transitions. [2021-01-20 14:43:44,726 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-01-20 14:43:44,726 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 [2021-01-20 14:43:44,727 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 14:43:44,737 INFO L225 Difference]: With dead ends: 3584 [2021-01-20 14:43:44,737 INFO L226 Difference]: Without dead ends: 2468 [2021-01-20 14:43:44,738 INFO L769 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 [2021-01-20 14:43:44,738 INFO L78 Accepts]: Start accepts. Automaton has 2468 states. Word has length 49 [2021-01-20 14:43:44,738 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 14:43:44,738 INFO L481 AbstractCegarLoop]: Abstraction has 2468 states. [2021-01-20 14:43:44,739 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) [2021-01-20 14:43:44,739 INFO L276 IsEmpty]: Start isEmpty. Operand 2468 states. [2021-01-20 14:43:44,746 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2021-01-20 14:43:44,747 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 14:43:44,747 INFO L504 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-20 14:43:44,747 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-01-20 14:43:44,747 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-20 14:43:44,748 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 14:43:44,748 INFO L82 PathProgramCache]: Analyzing trace with hash 1738964541, now seen corresponding path program 1 times [2021-01-20 14:43:44,748 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 14:43:44,749 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1089180285] [2021-01-20 14:43:44,749 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 14:43:44,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 14:43:44,923 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-20 14:43:44,923 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1089180285] [2021-01-20 14:43:44,924 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 14:43:44,924 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-01-20 14:43:44,924 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1073788951] [2021-01-20 14:43:44,925 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-01-20 14:43:44,925 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 14:43:44,926 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-01-20 14:43:44,926 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-01-20 14:43:44,926 INFO L87 Difference]: Start difference. First operand 2468 states. Second operand has 8 states, 8 states have (on average 6.375) internal successors, (51), 8 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 14:43:45,154 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 14:43:45,154 INFO L93 Difference]: Finished difference Result 1820 states and 5394 transitions. [2021-01-20 14:43:45,155 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-01-20 14:43:45,155 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.375) internal successors, (51), 8 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 51 [2021-01-20 14:43:45,156 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 14:43:45,158 INFO L225 Difference]: With dead ends: 1820 [2021-01-20 14:43:45,159 INFO L226 Difference]: Without dead ends: 910 [2021-01-20 14:43:45,159 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=61, Invalid=149, Unknown=0, NotChecked=0, Total=210 [2021-01-20 14:43:45,159 INFO L78 Accepts]: Start accepts. Automaton has 910 states. Word has length 51 [2021-01-20 14:43:45,160 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 14:43:45,160 INFO L481 AbstractCegarLoop]: Abstraction has 910 states. [2021-01-20 14:43:45,160 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 6.375) internal successors, (51), 8 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 14:43:45,160 INFO L276 IsEmpty]: Start isEmpty. Operand 910 states. [2021-01-20 14:43:45,163 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2021-01-20 14:43:45,163 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 14:43:45,163 INFO L504 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-20 14:43:45,163 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-01-20 14:43:45,164 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-20 14:43:45,164 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 14:43:45,164 INFO L82 PathProgramCache]: Analyzing trace with hash -889143118, now seen corresponding path program 1 times [2021-01-20 14:43:45,164 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 14:43:45,165 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1312027832] [2021-01-20 14:43:45,165 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 14:43:45,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 14:43:45,285 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-20 14:43:45,286 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1312027832] [2021-01-20 14:43:45,286 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 14:43:45,286 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-01-20 14:43:45,287 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [572716926] [2021-01-20 14:43:45,287 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-01-20 14:43:45,287 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 14:43:45,288 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-01-20 14:43:45,288 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-01-20 14:43:45,288 INFO L87 Difference]: Start difference. First operand 910 states. 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) [2021-01-20 14:43:45,450 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 14:43:45,450 INFO L93 Difference]: Finished difference Result 1281 states and 3699 transitions. [2021-01-20 14:43:45,451 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-01-20 14:43:45,451 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 [2021-01-20 14:43:45,451 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 14:43:45,454 INFO L225 Difference]: With dead ends: 1281 [2021-01-20 14:43:45,455 INFO L226 Difference]: Without dead ends: 734 [2021-01-20 14:43:45,455 INFO L769 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 [2021-01-20 14:43:45,456 INFO L78 Accepts]: Start accepts. Automaton has 734 states. Word has length 53 [2021-01-20 14:43:45,456 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 14:43:45,456 INFO L481 AbstractCegarLoop]: Abstraction has 734 states. [2021-01-20 14:43:45,456 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) [2021-01-20 14:43:45,457 INFO L276 IsEmpty]: Start isEmpty. Operand 734 states. [2021-01-20 14:43:45,459 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2021-01-20 14:43:45,459 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 14:43:45,460 INFO L504 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-20 14:43:45,460 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-01-20 14:43:45,460 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-20 14:43:45,461 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 14:43:45,461 INFO L82 PathProgramCache]: Analyzing trace with hash 388446026, now seen corresponding path program 2 times [2021-01-20 14:43:45,461 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 14:43:45,461 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1574273083] [2021-01-20 14:43:45,462 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 14:43:45,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 14:43:45,568 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-20 14:43:45,568 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1574273083] [2021-01-20 14:43:45,569 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 14:43:45,569 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-01-20 14:43:45,569 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1041611646] [2021-01-20 14:43:45,569 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-01-20 14:43:45,570 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 14:43:45,570 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-01-20 14:43:45,570 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-01-20 14:43:45,571 INFO L87 Difference]: Start difference. First operand 734 states. 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) [2021-01-20 14:43:45,671 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 14:43:45,672 INFO L93 Difference]: Finished difference Result 1137 states and 3259 transitions. [2021-01-20 14:43:45,672 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-01-20 14:43:45,673 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 [2021-01-20 14:43:45,675 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 14:43:45,678 INFO L225 Difference]: With dead ends: 1137 [2021-01-20 14:43:45,678 INFO L226 Difference]: Without dead ends: 690 [2021-01-20 14:43:45,679 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2021-01-20 14:43:45,679 INFO L78 Accepts]: Start accepts. Automaton has 690 states. Word has length 53 [2021-01-20 14:43:45,679 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 14:43:45,679 INFO L481 AbstractCegarLoop]: Abstraction has 690 states. [2021-01-20 14:43:45,680 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) [2021-01-20 14:43:45,680 INFO L276 IsEmpty]: Start isEmpty. Operand 690 states. [2021-01-20 14:43:45,683 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2021-01-20 14:43:45,683 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 14:43:45,684 INFO L504 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-20 14:43:45,684 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-01-20 14:43:45,684 INFO L429 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-20 14:43:45,684 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 14:43:45,685 INFO L82 PathProgramCache]: Analyzing trace with hash 1880557810, now seen corresponding path program 3 times [2021-01-20 14:43:45,685 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 14:43:45,685 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1602832588] [2021-01-20 14:43:45,685 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 14:43:45,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 14:43:45,914 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-20 14:43:45,914 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1602832588] [2021-01-20 14:43:45,914 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 14:43:45,914 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-01-20 14:43:45,915 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [851700181] [2021-01-20 14:43:45,915 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-01-20 14:43:45,946 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 14:43:45,947 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-01-20 14:43:45,947 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-01-20 14:43:45,947 INFO L87 Difference]: Start difference. First operand 690 states. 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) [2021-01-20 14:43:46,064 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 14:43:46,064 INFO L93 Difference]: Finished difference Result 582 states and 1624 transitions. [2021-01-20 14:43:46,064 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-01-20 14:43:46,064 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 [2021-01-20 14:43:46,064 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 14:43:46,064 INFO L225 Difference]: With dead ends: 582 [2021-01-20 14:43:46,065 INFO L226 Difference]: Without dead ends: 0 [2021-01-20 14:43:46,065 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2021-01-20 14:43:46,065 INFO L78 Accepts]: Start accepts. Automaton has 0 states. Word has length 53 [2021-01-20 14:43:46,065 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 14:43:46,065 INFO L481 AbstractCegarLoop]: Abstraction has 0 states. [2021-01-20 14:43:46,065 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) [2021-01-20 14:43:46,065 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states. [2021-01-20 14:43:46,066 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-01-20 14:43:46,066 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-01-20 14:43:46,070 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.01 02:43:46 BasicIcfg [2021-01-20 14:43:46,071 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-01-20 14:43:46,073 INFO L168 Benchmark]: Toolchain (without parser) took 7598.13 ms. Allocated memory was 302.0 MB in the beginning and 671.1 MB in the end (delta: 369.1 MB). Free memory was 277.1 MB in the beginning and 544.2 MB in the end (delta: -267.1 MB). Peak memory consumption was 104.7 MB. Max. memory is 16.0 GB. [2021-01-20 14:43:46,074 INFO L168 Benchmark]: CDTParser took 0.75 ms. Allocated memory is still 302.0 MB. Free memory is still 272.1 MB. There was no memory consumed. Max. memory is 16.0 GB. [2021-01-20 14:43:46,082 INFO L168 Benchmark]: CACSL2BoogieTranslator took 634.55 ms. Allocated memory is still 302.0 MB. Free memory was 276.7 MB in the beginning and 246.2 MB in the end (delta: 30.6 MB). Peak memory consumption was 31.5 MB. Max. memory is 16.0 GB. [2021-01-20 14:43:46,083 INFO L168 Benchmark]: Boogie Procedure Inliner took 55.24 ms. Allocated memory is still 302.0 MB. Free memory was 246.0 MB in the beginning and 244.2 MB in the end (delta: 1.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-01-20 14:43:46,084 INFO L168 Benchmark]: Boogie Preprocessor took 49.83 ms. Allocated memory is still 302.0 MB. Free memory was 244.2 MB in the beginning and 284.7 MB in the end (delta: -40.5 MB). Peak memory consumption was 6.6 MB. Max. memory is 16.0 GB. [2021-01-20 14:43:46,086 INFO L168 Benchmark]: RCFGBuilder took 683.33 ms. Allocated memory is still 302.0 MB. Free memory was 284.7 MB in the beginning and 262.7 MB in the end (delta: 22.0 MB). Peak memory consumption was 21.0 MB. Max. memory is 16.0 GB. [2021-01-20 14:43:46,089 INFO L168 Benchmark]: TraceAbstraction took 6165.40 ms. Allocated memory was 302.0 MB in the beginning and 671.1 MB in the end (delta: 369.1 MB). Free memory was 261.7 MB in the beginning and 544.2 MB in the end (delta: -282.6 MB). Peak memory consumption was 87.6 MB. Max. memory is 16.0 GB. [2021-01-20 14:43:46,098 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.75 ms. Allocated memory is still 302.0 MB. Free memory is still 272.1 MB. There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 634.55 ms. Allocated memory is still 302.0 MB. Free memory was 276.7 MB in the beginning and 246.2 MB in the end (delta: 30.6 MB). Peak memory consumption was 31.5 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 55.24 ms. Allocated memory is still 302.0 MB. Free memory was 246.0 MB in the beginning and 244.2 MB in the end (delta: 1.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 49.83 ms. Allocated memory is still 302.0 MB. Free memory was 244.2 MB in the beginning and 284.7 MB in the end (delta: -40.5 MB). Peak memory consumption was 6.6 MB. Max. memory is 16.0 GB. * RCFGBuilder took 683.33 ms. Allocated memory is still 302.0 MB. Free memory was 284.7 MB in the beginning and 262.7 MB in the end (delta: 22.0 MB). Peak memory consumption was 21.0 MB. Max. memory is 16.0 GB. * TraceAbstraction took 6165.40 ms. Allocated memory was 302.0 MB in the beginning and 671.1 MB in the end (delta: 369.1 MB). Free memory was 261.7 MB in the beginning and 544.2 MB in the end (delta: -282.6 MB). Peak memory consumption was 87.6 MB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 17]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 76 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 6.0s, OverallIterations: 11, TraceHistogramMax: 1, AutomataDifference: 2.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.8s, HoareTripleCheckerStatistics: 1044 SDtfs, 1272 SDslu, 3443 SDs, 0 SdLazy, 429 SolverSat, 53 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 127 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 105 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 82 ImplicationChecksByTransitivity, 2.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=9847occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.5s InterpolantComputationTime, 528 NumberOfCodeBlocks, 528 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 517 ConstructedInterpolants, 0 QuantifiedInterpolants, 63591 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 11 InterpolantComputations, 11 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...