/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-keepdead.epf -i ../../../trunk/examples/svcomp/pthread-wmm/safe004_tso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.2.0-e5469eb [2021-01-20 21:09:08,306 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-01-20 21:09:08,309 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-01-20 21:09:08,360 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-01-20 21:09:08,361 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-01-20 21:09:08,365 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-01-20 21:09:08,369 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-01-20 21:09:08,377 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-01-20 21:09:08,380 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-01-20 21:09:08,386 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-01-20 21:09:08,387 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-01-20 21:09:08,389 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-01-20 21:09:08,389 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-01-20 21:09:08,393 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-01-20 21:09:08,395 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-01-20 21:09:08,397 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-01-20 21:09:08,398 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-01-20 21:09:08,401 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-01-20 21:09:08,408 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-01-20 21:09:08,417 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-01-20 21:09:08,420 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-01-20 21:09:08,422 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-01-20 21:09:08,424 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-01-20 21:09:08,426 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-01-20 21:09:08,435 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-01-20 21:09:08,436 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-01-20 21:09:08,436 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-01-20 21:09:08,438 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-01-20 21:09:08,439 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-01-20 21:09:08,440 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-01-20 21:09:08,440 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-01-20 21:09:08,441 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-01-20 21:09:08,443 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-01-20 21:09:08,444 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-01-20 21:09:08,445 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-01-20 21:09:08,445 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-01-20 21:09:08,446 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-01-20 21:09:08,446 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-01-20 21:09:08,446 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-01-20 21:09:08,447 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-01-20 21:09:08,448 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-01-20 21:09:08,449 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-keepdead.epf [2021-01-20 21:09:08,509 INFO L113 SettingsManager]: Loading preferences was successful [2021-01-20 21:09:08,509 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-01-20 21:09:08,514 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-01-20 21:09:08,514 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-01-20 21:09:08,514 INFO L138 SettingsManager]: * Use SBE=true [2021-01-20 21:09:08,515 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-01-20 21:09:08,515 INFO L138 SettingsManager]: * sizeof long=4 [2021-01-20 21:09:08,515 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-01-20 21:09:08,515 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-01-20 21:09:08,516 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-01-20 21:09:08,517 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-01-20 21:09:08,517 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-01-20 21:09:08,517 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-01-20 21:09:08,518 INFO L138 SettingsManager]: * sizeof long double=12 [2021-01-20 21:09:08,518 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-01-20 21:09:08,518 INFO L138 SettingsManager]: * Use constant arrays=true [2021-01-20 21:09:08,518 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-01-20 21:09:08,518 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-01-20 21:09:08,519 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-01-20 21:09:08,519 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-01-20 21:09:08,519 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-01-20 21:09:08,520 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-01-20 21:09:08,520 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-01-20 21:09:08,520 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-01-20 21:09:08,520 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-01-20 21:09:08,520 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-01-20 21:09:08,521 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-01-20 21:09:08,521 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-01-20 21:09:08,521 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-01-20 21:09:08,521 INFO L138 SettingsManager]: * Remove dead ends from automaton=false [2021-01-20 21:09:08,521 INFO L138 SettingsManager]: * Minimization of abstraction=NONE [2021-01-20 21:09:08,522 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-01-20 21:09:08,889 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-01-20 21:09:08,919 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-01-20 21:09:08,923 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-01-20 21:09:08,924 INFO L271 PluginConnector]: Initializing CDTParser... [2021-01-20 21:09:08,925 INFO L275 PluginConnector]: CDTParser initialized [2021-01-20 21:09:08,926 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe004_tso.opt.i [2021-01-20 21:09:09,010 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/24609879a/c7ad6389c0a348eda92421e867daac8e/FLAG182e3f4e6 [2021-01-20 21:09:09,874 INFO L306 CDTParser]: Found 1 translation units. [2021-01-20 21:09:09,875 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe004_tso.opt.i [2021-01-20 21:09:09,891 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/24609879a/c7ad6389c0a348eda92421e867daac8e/FLAG182e3f4e6 [2021-01-20 21:09:10,125 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/24609879a/c7ad6389c0a348eda92421e867daac8e [2021-01-20 21:09:10,130 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-01-20 21:09:10,133 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-01-20 21:09:10,135 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-01-20 21:09:10,135 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-01-20 21:09:10,141 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-01-20 21:09:10,142 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.01 09:09:10" (1/1) ... [2021-01-20 21:09:10,145 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5ad7af86 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 09:09:10, skipping insertion in model container [2021-01-20 21:09:10,145 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.01 09:09:10" (1/1) ... [2021-01-20 21:09:10,152 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-01-20 21:09:10,204 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-01-20 21:09:10,660 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-01-20 21:09:10,678 INFO L203 MainTranslator]: Completed pre-run [2021-01-20 21:09:10,776 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-01-20 21:09:10,956 INFO L208 MainTranslator]: Completed translation [2021-01-20 21:09:10,956 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 09:09:10 WrapperNode [2021-01-20 21:09:10,956 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-01-20 21:09:10,958 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-01-20 21:09:10,959 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-01-20 21:09:10,960 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-01-20 21:09:10,969 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 09:09:10" (1/1) ... [2021-01-20 21:09:11,009 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 09:09:10" (1/1) ... [2021-01-20 21:09:11,055 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-01-20 21:09:11,056 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-01-20 21:09:11,056 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-01-20 21:09:11,057 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-01-20 21:09:11,066 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 09:09:10" (1/1) ... [2021-01-20 21:09:11,066 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 09:09:10" (1/1) ... [2021-01-20 21:09:11,081 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 09:09:10" (1/1) ... [2021-01-20 21:09:11,082 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 09:09:10" (1/1) ... [2021-01-20 21:09:11,088 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 09:09:10" (1/1) ... [2021-01-20 21:09:11,091 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 09:09:10" (1/1) ... [2021-01-20 21:09:11,093 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 09:09:10" (1/1) ... [2021-01-20 21:09:11,097 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-01-20 21:09:11,098 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-01-20 21:09:11,098 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-01-20 21:09:11,098 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-01-20 21:09:11,099 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 09:09:10" (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 21:09:11,199 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-01-20 21:09:11,200 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-01-20 21:09:11,200 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-01-20 21:09:11,201 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-01-20 21:09:11,201 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2021-01-20 21:09:11,202 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2021-01-20 21:09:11,202 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2021-01-20 21:09:11,203 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2021-01-20 21:09:11,203 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2021-01-20 21:09:11,203 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2021-01-20 21:09:11,203 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-01-20 21:09:11,203 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-01-20 21:09:11,204 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-01-20 21:09:11,204 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-01-20 21:09:11,206 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 21:09:11,812 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-01-20 21:09:11,813 INFO L298 CfgBuilder]: Removed 10 assume(true) statements. [2021-01-20 21:09:11,817 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.01 09:09:11 BoogieIcfgContainer [2021-01-20 21:09:11,818 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-01-20 21:09:11,820 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-01-20 21:09:11,820 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-01-20 21:09:11,824 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-01-20 21:09:11,825 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.01 09:09:10" (1/3) ... [2021-01-20 21:09:11,826 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@495b77f0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.01 09:09:11, skipping insertion in model container [2021-01-20 21:09:11,827 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 09:09:10" (2/3) ... [2021-01-20 21:09:11,827 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@495b77f0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.01 09:09:11, skipping insertion in model container [2021-01-20 21:09:11,828 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.01 09:09:11" (3/3) ... [2021-01-20 21:09:11,829 INFO L111 eAbstractionObserver]: Analyzing ICFG safe004_tso.opt.i [2021-01-20 21:09:11,848 WARN L168 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-01-20 21:09:11,848 INFO L179 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-01-20 21:09:11,853 INFO L191 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-01-20 21:09:11,854 INFO L351 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-01-20 21:09:11,911 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:09:11,912 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:09:11,912 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:09:11,912 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:09:11,912 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:09:11,913 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:09:11,913 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:09:11,913 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:09:11,914 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:09:11,914 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:09:11,914 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:09:11,914 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:09:11,916 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:09:11,916 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:09:11,916 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:09:11,916 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:09:11,916 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:09:11,917 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:09:11,917 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:09:11,917 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:09:11,918 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:09:11,918 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:09:11,918 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:09:11,919 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:09:11,921 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:09:11,921 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:09:11,922 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:09:11,922 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:09:11,923 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:09:11,923 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:09:11,923 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:09:11,923 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:09:11,924 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:09:11,925 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:09:11,925 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:09:11,925 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:09:11,934 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:09:11,934 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:09:11,938 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:09:11,939 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:09:11,945 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:09:11,946 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:09:11,946 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:09:11,946 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:09:11,951 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:09:11,951 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:09:11,952 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:09:11,952 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:09:11,956 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-01-20 21:09:11,972 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2021-01-20 21:09:12,013 INFO L377 AbstractCegarLoop]: Interprodecural is true [2021-01-20 21:09:12,013 INFO L378 AbstractCegarLoop]: Hoare is true [2021-01-20 21:09:12,013 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-01-20 21:09:12,013 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-01-20 21:09:12,013 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-01-20 21:09:12,014 INFO L382 AbstractCegarLoop]: Difference is false [2021-01-20 21:09:12,014 INFO L383 AbstractCegarLoop]: Minimize is NONE [2021-01-20 21:09:12,014 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-01-20 21:09:12,033 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 85 places, 78 transitions, 171 flow [2021-01-20 21:09:13,072 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 21:09:13,130 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 21:09:13,182 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2021-01-20 21:09:13,182 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 21:09:13,183 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 21:09:13,184 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-20 21:09:13,190 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 21:09:13,191 INFO L82 PathProgramCache]: Analyzing trace with hash -578983952, now seen corresponding path program 1 times [2021-01-20 21:09:13,201 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 21:09:13,202 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [491707671] [2021-01-20 21:09:13,203 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 21:09:13,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 21:09:13,820 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 21:09:13,821 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [491707671] [2021-01-20 21:09:13,822 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 21:09:13,822 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-01-20 21:09:13,823 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [798357939] [2021-01-20 21:09:13,830 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-01-20 21:09:13,831 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 21:09:13,851 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-01-20 21:09:13,852 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-01-20 21:09:13,884 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 21:09:14,431 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 21:09:14,431 INFO L93 Difference]: Finished difference Result 12199 states and 42463 transitions. [2021-01-20 21:09:14,432 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-01-20 21:09:14,433 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 21:09:14,434 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 21:09:14,436 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2021-01-20 21:09:14,436 INFO L78 Accepts]: Start accepts. Automaton has 12199 states and 42463 transitions. Word has length 41 [2021-01-20 21:09:14,438 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 21:09:14,438 INFO L481 AbstractCegarLoop]: Abstraction has 12199 states and 42463 transitions. [2021-01-20 21:09:14,438 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 21:09:14,438 INFO L276 IsEmpty]: Start isEmpty. Operand 12199 states and 42463 transitions. [2021-01-20 21:09:14,457 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2021-01-20 21:09:14,458 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 21:09:14,458 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 21:09:14,458 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-01-20 21:09:14,458 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-20 21:09:14,459 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 21:09:14,459 INFO L82 PathProgramCache]: Analyzing trace with hash 1767731663, now seen corresponding path program 1 times [2021-01-20 21:09:14,460 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 21:09:14,460 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [174016953] [2021-01-20 21:09:14,460 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 21:09:14,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 21:09:14,614 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 21:09:14,614 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [174016953] [2021-01-20 21:09:14,615 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 21:09:14,615 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-01-20 21:09:14,615 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [666178206] [2021-01-20 21:09:14,617 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-01-20 21:09:14,617 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 21:09:14,618 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-01-20 21:09:14,618 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-01-20 21:09:14,618 INFO L87 Difference]: Start difference. First operand 12199 states and 42463 transitions. 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 21:09:15,098 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 21:09:15,099 INFO L93 Difference]: Finished difference Result 19303 states and 66831 transitions. [2021-01-20 21:09:15,099 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-01-20 21:09:15,099 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 21:09:15,100 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 21:09:15,101 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 21:09:15,101 INFO L78 Accepts]: Start accepts. Automaton has 19303 states and 66831 transitions. Word has length 43 [2021-01-20 21:09:15,102 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 21:09:15,102 INFO L481 AbstractCegarLoop]: Abstraction has 19303 states and 66831 transitions. [2021-01-20 21:09:15,102 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 21:09:15,102 INFO L276 IsEmpty]: Start isEmpty. Operand 19303 states and 66831 transitions. [2021-01-20 21:09:15,126 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2021-01-20 21:09:15,126 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 21:09:15,126 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] [2021-01-20 21:09:15,127 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-01-20 21:09:15,127 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-20 21:09:15,127 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 21:09:15,128 INFO L82 PathProgramCache]: Analyzing trace with hash 280082414, now seen corresponding path program 1 times [2021-01-20 21:09:15,128 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 21:09:15,128 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [244771679] [2021-01-20 21:09:15,128 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 21:09:15,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 21:09:15,357 WARN L193 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 12 DAG size of output: 8 [2021-01-20 21:09:15,389 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 21:09:15,390 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [244771679] [2021-01-20 21:09:15,390 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 21:09:15,390 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-01-20 21:09:15,390 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [86410203] [2021-01-20 21:09:15,391 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-01-20 21:09:15,391 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 21:09:15,392 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-01-20 21:09:15,392 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-01-20 21:09:15,392 INFO L87 Difference]: Start difference. First operand 19303 states and 66831 transitions. Second operand has 6 states, 6 states have (on average 7.5) internal successors, (45), 6 states have internal predecessors, (45), 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 21:09:15,819 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 21:09:15,819 INFO L93 Difference]: Finished difference Result 24283 states and 83583 transitions. [2021-01-20 21:09:15,820 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-01-20 21:09:15,820 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.5) internal successors, (45), 6 states have internal predecessors, (45), 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 45 [2021-01-20 21:09:15,820 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 21:09:15,821 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 21:09:15,821 INFO L78 Accepts]: Start accepts. Automaton has 24283 states and 83583 transitions. Word has length 45 [2021-01-20 21:09:15,822 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 21:09:15,822 INFO L481 AbstractCegarLoop]: Abstraction has 24283 states and 83583 transitions. [2021-01-20 21:09:15,822 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 7.5) internal successors, (45), 6 states have internal predecessors, (45), 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 21:09:15,822 INFO L276 IsEmpty]: Start isEmpty. Operand 24283 states and 83583 transitions. [2021-01-20 21:09:15,935 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2021-01-20 21:09:15,936 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 21:09:15,936 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 21:09:15,936 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-01-20 21:09:15,936 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-20 21:09:15,937 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 21:09:15,937 INFO L82 PathProgramCache]: Analyzing trace with hash -1176584974, now seen corresponding path program 1 times [2021-01-20 21:09:15,937 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 21:09:15,937 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1920557189] [2021-01-20 21:09:15,938 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 21:09:15,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 21:09:16,126 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 21:09:16,127 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1920557189] [2021-01-20 21:09:16,127 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 21:09:16,127 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-01-20 21:09:16,127 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1759517864] [2021-01-20 21:09:16,128 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-01-20 21:09:16,128 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 21:09:16,129 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-01-20 21:09:16,129 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-01-20 21:09:16,129 INFO L87 Difference]: Start difference. First operand 24283 states and 83583 transitions. Second operand has 7 states, 7 states have (on average 6.571428571428571) internal successors, (46), 7 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 21:09:16,784 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 21:09:16,785 INFO L93 Difference]: Finished difference Result 38395 states and 130775 transitions. [2021-01-20 21:09:16,785 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-01-20 21:09:16,786 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.571428571428571) internal successors, (46), 7 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 21:09:16,786 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 21:09:16,787 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=79, Invalid=161, Unknown=0, NotChecked=0, Total=240 [2021-01-20 21:09:16,787 INFO L78 Accepts]: Start accepts. Automaton has 38395 states and 130775 transitions. Word has length 46 [2021-01-20 21:09:16,787 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 21:09:16,787 INFO L481 AbstractCegarLoop]: Abstraction has 38395 states and 130775 transitions. [2021-01-20 21:09:16,788 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 6.571428571428571) internal successors, (46), 7 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 21:09:16,788 INFO L276 IsEmpty]: Start isEmpty. Operand 38395 states and 130775 transitions. [2021-01-20 21:09:16,846 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2021-01-20 21:09:16,846 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 21:09:16,846 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 21:09:16,846 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-01-20 21:09:16,847 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-20 21:09:16,847 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 21:09:16,847 INFO L82 PathProgramCache]: Analyzing trace with hash 969736422, now seen corresponding path program 1 times [2021-01-20 21:09:16,848 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 21:09:16,848 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [401605955] [2021-01-20 21:09:16,848 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 21:09:16,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 21:09:16,971 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 21:09:16,972 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [401605955] [2021-01-20 21:09:16,972 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 21:09:16,972 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-01-20 21:09:16,973 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [55384874] [2021-01-20 21:09:16,973 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-01-20 21:09:16,973 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 21:09:16,974 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-01-20 21:09:16,974 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-01-20 21:09:16,974 INFO L87 Difference]: Start difference. First operand 38395 states and 130775 transitions. Second operand has 7 states, 7 states have (on average 6.714285714285714) internal successors, (47), 7 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 21:09:18,032 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 21:09:18,034 INFO L93 Difference]: Finished difference Result 67387 states and 225183 transitions. [2021-01-20 21:09:18,034 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-01-20 21:09:18,036 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.714285714285714) internal successors, (47), 7 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2021-01-20 21:09:18,037 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 21:09:18,038 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182 [2021-01-20 21:09:18,038 INFO L78 Accepts]: Start accepts. Automaton has 67387 states and 225183 transitions. Word has length 47 [2021-01-20 21:09:18,038 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 21:09:18,038 INFO L481 AbstractCegarLoop]: Abstraction has 67387 states and 225183 transitions. [2021-01-20 21:09:18,039 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 6.714285714285714) internal successors, (47), 7 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 21:09:18,039 INFO L276 IsEmpty]: Start isEmpty. Operand 67387 states and 225183 transitions. [2021-01-20 21:09:18,115 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2021-01-20 21:09:18,115 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 21:09:18,116 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 21:09:18,116 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-01-20 21:09:18,119 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-20 21:09:18,120 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 21:09:18,125 INFO L82 PathProgramCache]: Analyzing trace with hash -991149868, now seen corresponding path program 1 times [2021-01-20 21:09:18,126 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 21:09:18,127 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1828966484] [2021-01-20 21:09:18,127 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 21:09:18,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 21:09:18,390 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 21:09:18,390 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1828966484] [2021-01-20 21:09:18,391 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 21:09:18,391 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-01-20 21:09:18,395 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [765427614] [2021-01-20 21:09:18,396 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-01-20 21:09:18,396 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 21:09:18,396 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-01-20 21:09:18,397 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-01-20 21:09:18,397 INFO L87 Difference]: Start difference. First operand 67387 states and 225183 transitions. 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 21:09:19,152 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 21:09:19,153 INFO L93 Difference]: Finished difference Result 82171 states and 273887 transitions. [2021-01-20 21:09:19,153 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-01-20 21:09:19,153 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 21:09:19,154 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 21:09:19,154 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 21:09:19,154 INFO L78 Accepts]: Start accepts. Automaton has 82171 states and 273887 transitions. Word has length 47 [2021-01-20 21:09:19,155 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 21:09:19,155 INFO L481 AbstractCegarLoop]: Abstraction has 82171 states and 273887 transitions. [2021-01-20 21:09:19,155 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 21:09:19,155 INFO L276 IsEmpty]: Start isEmpty. Operand 82171 states and 273887 transitions. [2021-01-20 21:09:19,422 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2021-01-20 21:09:19,422 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 21:09:19,422 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 21:09:19,422 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-01-20 21:09:19,423 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-20 21:09:19,423 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 21:09:19,423 INFO L82 PathProgramCache]: Analyzing trace with hash 608113037, now seen corresponding path program 1 times [2021-01-20 21:09:19,423 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 21:09:19,425 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1818450588] [2021-01-20 21:09:19,425 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 21:09:19,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 21:09:19,671 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 21:09:19,671 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1818450588] [2021-01-20 21:09:19,671 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 21:09:19,672 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-01-20 21:09:19,672 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2009556715] [2021-01-20 21:09:19,672 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-01-20 21:09:19,672 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 21:09:19,673 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-01-20 21:09:19,673 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-01-20 21:09:19,673 INFO L87 Difference]: Start difference. First operand 82171 states and 273887 transitions. Second operand has 6 states, 6 states have (on average 8.166666666666666) internal successors, (49), 6 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 21:09:20,282 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 21:09:20,282 INFO L93 Difference]: Finished difference Result 45510 states and 148505 transitions. [2021-01-20 21:09:20,283 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-01-20 21:09:20,283 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.166666666666666) internal successors, (49), 6 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 21:09:20,283 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 21:09:20,283 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 21:09:20,284 INFO L78 Accepts]: Start accepts. Automaton has 45510 states and 148505 transitions. Word has length 49 [2021-01-20 21:09:20,285 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 21:09:20,285 INFO L481 AbstractCegarLoop]: Abstraction has 45510 states and 148505 transitions. [2021-01-20 21:09:20,285 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 8.166666666666666) internal successors, (49), 6 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 21:09:20,286 INFO L276 IsEmpty]: Start isEmpty. Operand 45510 states and 148505 transitions. [2021-01-20 21:09:20,332 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2021-01-20 21:09:20,332 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 21:09:20,333 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] [2021-01-20 21:09:20,333 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-01-20 21:09:20,333 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-20 21:09:20,334 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 21:09:20,334 INFO L82 PathProgramCache]: Analyzing trace with hash -1984353874, now seen corresponding path program 1 times [2021-01-20 21:09:20,334 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 21:09:20,334 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [654540333] [2021-01-20 21:09:20,334 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 21:09:20,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 21:09:20,482 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 21:09:20,482 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [654540333] [2021-01-20 21:09:20,483 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 21:09:20,483 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-01-20 21:09:20,483 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1732624178] [2021-01-20 21:09:20,484 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-01-20 21:09:20,484 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 21:09:20,484 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-01-20 21:09:20,485 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-01-20 21:09:20,485 INFO L87 Difference]: Start difference. First operand 45510 states and 148505 transitions. Second operand has 7 states, 7 states have (on average 7.142857142857143) internal successors, (50), 7 states have internal predecessors, (50), 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 21:09:21,008 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 21:09:21,008 INFO L93 Difference]: Finished difference Result 25851 states and 82131 transitions. [2021-01-20 21:09:21,015 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-01-20 21:09:21,015 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.142857142857143) internal successors, (50), 7 states have internal predecessors, (50), 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 50 [2021-01-20 21:09:21,016 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 21:09:21,016 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=73, Invalid=137, Unknown=0, NotChecked=0, Total=210 [2021-01-20 21:09:21,016 INFO L78 Accepts]: Start accepts. Automaton has 25851 states and 82131 transitions. Word has length 50 [2021-01-20 21:09:21,017 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 21:09:21,017 INFO L481 AbstractCegarLoop]: Abstraction has 25851 states and 82131 transitions. [2021-01-20 21:09:21,017 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 7.142857142857143) internal successors, (50), 7 states have internal predecessors, (50), 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 21:09:21,017 INFO L276 IsEmpty]: Start isEmpty. Operand 25851 states and 82131 transitions. [2021-01-20 21:09:21,087 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2021-01-20 21:09:21,087 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 21:09:21,087 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 21:09:21,088 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-01-20 21:09:21,088 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-20 21:09:21,088 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 21:09:21,088 INFO L82 PathProgramCache]: Analyzing trace with hash -126840041, now seen corresponding path program 1 times [2021-01-20 21:09:21,089 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 21:09:21,089 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1874600701] [2021-01-20 21:09:21,089 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 21:09:21,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 21:09:21,288 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 21:09:21,289 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1874600701] [2021-01-20 21:09:21,289 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 21:09:21,289 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-01-20 21:09:21,292 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1685822636] [2021-01-20 21:09:21,293 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-01-20 21:09:21,293 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 21:09:21,293 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-01-20 21:09:21,294 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-01-20 21:09:21,294 INFO L87 Difference]: Start difference. First operand 25851 states and 82131 transitions. Second operand has 8 states, 8 states have (on average 6.375) internal successors, (51), 8 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 21:09:21,701 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 21:09:21,701 INFO L93 Difference]: Finished difference Result 16581 states and 52131 transitions. [2021-01-20 21:09:21,701 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-01-20 21:09:21,702 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 21:09:21,706 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 21:09:21,706 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=116, Invalid=226, Unknown=0, NotChecked=0, Total=342 [2021-01-20 21:09:21,707 INFO L78 Accepts]: Start accepts. Automaton has 16581 states and 52131 transitions. Word has length 51 [2021-01-20 21:09:21,707 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 21:09:21,707 INFO L481 AbstractCegarLoop]: Abstraction has 16581 states and 52131 transitions. [2021-01-20 21:09:21,708 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 21:09:21,708 INFO L276 IsEmpty]: Start isEmpty. Operand 16581 states and 52131 transitions. [2021-01-20 21:09:21,734 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2021-01-20 21:09:21,734 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 21:09:21,734 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 21:09:21,734 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-01-20 21:09:21,735 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-20 21:09:21,735 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 21:09:21,735 INFO L82 PathProgramCache]: Analyzing trace with hash -1190692008, now seen corresponding path program 1 times [2021-01-20 21:09:21,735 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 21:09:21,735 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [935262683] [2021-01-20 21:09:21,736 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 21:09:21,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 21:09:21,869 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 21:09:21,870 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [935262683] [2021-01-20 21:09:21,870 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 21:09:21,870 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-01-20 21:09:21,870 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [160706836] [2021-01-20 21:09:21,871 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-01-20 21:09:21,871 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 21:09:21,871 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-01-20 21:09:21,872 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-01-20 21:09:21,872 INFO L87 Difference]: Start difference. First operand 16581 states and 52131 transitions. Second operand has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 6 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 21:09:22,189 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 21:09:22,190 INFO L93 Difference]: Finished difference Result 22561 states and 70509 transitions. [2021-01-20 21:09:22,190 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-01-20 21:09:22,190 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 6 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 21:09:22,191 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 21:09:22,191 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2021-01-20 21:09:22,191 INFO L78 Accepts]: Start accepts. Automaton has 22561 states and 70509 transitions. Word has length 53 [2021-01-20 21:09:22,192 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 21:09:22,192 INFO L481 AbstractCegarLoop]: Abstraction has 22561 states and 70509 transitions. [2021-01-20 21:09:22,192 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 6 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 21:09:22,192 INFO L276 IsEmpty]: Start isEmpty. Operand 22561 states and 70509 transitions. [2021-01-20 21:09:22,228 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-01-20 21:09:22,228 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-01-20 21:09:22,232 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.01 09:09:22 BasicIcfg [2021-01-20 21:09:22,233 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-01-20 21:09:22,235 INFO L168 Benchmark]: Toolchain (without parser) took 12101.77 ms. Allocated memory was 302.0 MB in the beginning and 8.5 GB in the end (delta: 8.2 GB). Free memory was 275.9 MB in the beginning and 7.8 GB in the end (delta: -7.6 GB). Peak memory consumption was 624.2 MB. Max. memory is 16.0 GB. [2021-01-20 21:09:22,235 INFO L168 Benchmark]: CDTParser took 0.26 ms. Allocated memory is still 302.0 MB. Free memory was 271.9 MB in the beginning and 271.7 MB in the end (delta: 153.9 kB). There was no memory consumed. Max. memory is 16.0 GB. [2021-01-20 21:09:22,236 INFO L168 Benchmark]: CACSL2BoogieTranslator took 822.22 ms. Allocated memory is still 302.0 MB. Free memory was 275.6 MB in the beginning and 273.6 MB in the end (delta: 2.0 MB). Peak memory consumption was 26.6 MB. Max. memory is 16.0 GB. [2021-01-20 21:09:22,237 INFO L168 Benchmark]: Boogie Procedure Inliner took 96.81 ms. Allocated memory is still 302.0 MB. Free memory was 273.6 MB in the beginning and 271.5 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-01-20 21:09:22,237 INFO L168 Benchmark]: Boogie Preprocessor took 41.04 ms. Allocated memory is still 302.0 MB. Free memory was 271.5 MB in the beginning and 270.5 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-01-20 21:09:22,238 INFO L168 Benchmark]: RCFGBuilder took 719.58 ms. Allocated memory is still 302.0 MB. Free memory was 270.5 MB in the beginning and 247.4 MB in the end (delta: 23.1 MB). Peak memory consumption was 23.1 MB. Max. memory is 16.0 GB. [2021-01-20 21:09:22,239 INFO L168 Benchmark]: TraceAbstraction took 10412.92 ms. Allocated memory was 302.0 MB in the beginning and 8.5 GB in the end (delta: 8.2 GB). Free memory was 246.3 MB in the beginning and 7.8 GB in the end (delta: -7.6 GB). Peak memory consumption was 595.5 MB. Max. memory is 16.0 GB. [2021-01-20 21:09:22,246 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26 ms. Allocated memory is still 302.0 MB. Free memory was 271.9 MB in the beginning and 271.7 MB in the end (delta: 153.9 kB). There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 822.22 ms. Allocated memory is still 302.0 MB. Free memory was 275.6 MB in the beginning and 273.6 MB in the end (delta: 2.0 MB). Peak memory consumption was 26.6 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 96.81 ms. Allocated memory is still 302.0 MB. Free memory was 273.6 MB in the beginning and 271.5 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 41.04 ms. Allocated memory is still 302.0 MB. Free memory was 271.5 MB in the beginning and 270.5 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * RCFGBuilder took 719.58 ms. Allocated memory is still 302.0 MB. Free memory was 270.5 MB in the beginning and 247.4 MB in the end (delta: 23.1 MB). Peak memory consumption was 23.1 MB. Max. memory is 16.0 GB. * TraceAbstraction took 10412.92 ms. Allocated memory was 302.0 MB in the beginning and 8.5 GB in the end (delta: 8.2 GB). Free memory was 246.3 MB in the beginning and 7.8 GB in the end (delta: -7.6 GB). Peak memory consumption was 595.5 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: 10.2s, OverallIterations: 10, TraceHistogramMax: 1, AutomataDifference: 5.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.0s, HoareTripleCheckerStatistics: 1202 SDtfs, 2143 SDslu, 4082 SDs, 0 SdLazy, 454 SolverSat, 83 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.8s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 128 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 108 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 160 ImplicationChecksByTransitivity, 2.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=82171occurred in iteration=6, 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: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 1.5s InterpolantComputationTime, 472 NumberOfCodeBlocks, 472 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 462 ConstructedInterpolants, 0 QuantifiedInterpolants, 56632 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 10 InterpolantComputations, 10 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...