/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/thin002_tso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.2.0-e5469eb [2021-01-20 14:52:44,074 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-01-20 14:52:44,077 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-01-20 14:52:44,127 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-01-20 14:52:44,128 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-01-20 14:52:44,129 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-01-20 14:52:44,131 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-01-20 14:52:44,134 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-01-20 14:52:44,136 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-01-20 14:52:44,137 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-01-20 14:52:44,139 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-01-20 14:52:44,140 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-01-20 14:52:44,141 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-01-20 14:52:44,142 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-01-20 14:52:44,144 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-01-20 14:52:44,145 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-01-20 14:52:44,146 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-01-20 14:52:44,148 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-01-20 14:52:44,150 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-01-20 14:52:44,153 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-01-20 14:52:44,155 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-01-20 14:52:44,156 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-01-20 14:52:44,163 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-01-20 14:52:44,164 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-01-20 14:52:44,172 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-01-20 14:52:44,172 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-01-20 14:52:44,173 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-01-20 14:52:44,180 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-01-20 14:52:44,180 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-01-20 14:52:44,182 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-01-20 14:52:44,182 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-01-20 14:52:44,183 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-01-20 14:52:44,184 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-01-20 14:52:44,187 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-01-20 14:52:44,189 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-01-20 14:52:44,189 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-01-20 14:52:44,190 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-01-20 14:52:44,190 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-01-20 14:52:44,191 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-01-20 14:52:44,192 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-01-20 14:52:44,194 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-01-20 14:52:44,195 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 14:52:44,253 INFO L113 SettingsManager]: Loading preferences was successful [2021-01-20 14:52:44,253 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-01-20 14:52:44,257 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-01-20 14:52:44,257 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-01-20 14:52:44,258 INFO L138 SettingsManager]: * Use SBE=true [2021-01-20 14:52:44,259 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-01-20 14:52:44,259 INFO L138 SettingsManager]: * sizeof long=4 [2021-01-20 14:52:44,259 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-01-20 14:52:44,260 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-01-20 14:52:44,260 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-01-20 14:52:44,261 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-01-20 14:52:44,261 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-01-20 14:52:44,262 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-01-20 14:52:44,262 INFO L138 SettingsManager]: * sizeof long double=12 [2021-01-20 14:52:44,262 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-01-20 14:52:44,262 INFO L138 SettingsManager]: * Use constant arrays=true [2021-01-20 14:52:44,262 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-01-20 14:52:44,263 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-01-20 14:52:44,263 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-01-20 14:52:44,263 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-01-20 14:52:44,263 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-01-20 14:52:44,264 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-01-20 14:52:44,264 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-01-20 14:52:44,264 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-01-20 14:52:44,264 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-01-20 14:52:44,264 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-01-20 14:52:44,265 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-01-20 14:52:44,265 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-01-20 14:52:44,265 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-01-20 14:52:44,265 INFO L138 SettingsManager]: * Minimization of abstraction=NONE [2021-01-20 14:52:44,266 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-01-20 14:52:44,710 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-01-20 14:52:44,765 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-01-20 14:52:44,769 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-01-20 14:52:44,770 INFO L271 PluginConnector]: Initializing CDTParser... [2021-01-20 14:52:44,771 INFO L275 PluginConnector]: CDTParser initialized [2021-01-20 14:52:44,772 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/thin002_tso.oepc.i [2021-01-20 14:52:44,864 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c3817ff82/0f3f37798280416192f33c074703aee1/FLAGc1c4a944a [2021-01-20 14:52:45,556 INFO L306 CDTParser]: Found 1 translation units. [2021-01-20 14:52:45,557 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/thin002_tso.oepc.i [2021-01-20 14:52:45,577 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c3817ff82/0f3f37798280416192f33c074703aee1/FLAGc1c4a944a [2021-01-20 14:52:45,782 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c3817ff82/0f3f37798280416192f33c074703aee1 [2021-01-20 14:52:45,785 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-01-20 14:52:45,789 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-01-20 14:52:45,794 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-01-20 14:52:45,794 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-01-20 14:52:45,798 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-01-20 14:52:45,799 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.01 02:52:45" (1/1) ... [2021-01-20 14:52:45,802 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@c39e9aa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 02:52:45, skipping insertion in model container [2021-01-20 14:52:45,802 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.01 02:52:45" (1/1) ... [2021-01-20 14:52:45,811 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-01-20 14:52:45,854 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-01-20 14:52:46,306 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-01-20 14:52:46,322 INFO L203 MainTranslator]: Completed pre-run [2021-01-20 14:52:46,405 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-01-20 14:52:46,510 INFO L208 MainTranslator]: Completed translation [2021-01-20 14:52:46,512 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 02:52:46 WrapperNode [2021-01-20 14:52:46,512 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-01-20 14:52:46,514 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-01-20 14:52:46,515 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-01-20 14:52:46,515 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-01-20 14:52:46,525 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 02:52:46" (1/1) ... [2021-01-20 14:52:46,549 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 02:52:46" (1/1) ... [2021-01-20 14:52:46,575 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-01-20 14:52:46,576 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-01-20 14:52:46,576 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-01-20 14:52:46,577 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-01-20 14:52:46,586 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 02:52:46" (1/1) ... [2021-01-20 14:52:46,586 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 02:52:46" (1/1) ... [2021-01-20 14:52:46,604 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 02:52:46" (1/1) ... [2021-01-20 14:52:46,605 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 02:52:46" (1/1) ... [2021-01-20 14:52:46,619 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 02:52:46" (1/1) ... [2021-01-20 14:52:46,626 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 02:52:46" (1/1) ... [2021-01-20 14:52:46,629 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 02:52:46" (1/1) ... [2021-01-20 14:52:46,633 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-01-20 14:52:46,634 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-01-20 14:52:46,634 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-01-20 14:52:46,634 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-01-20 14:52:46,635 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 02:52:46" (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 14:52:46,706 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-01-20 14:52:46,706 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-01-20 14:52:46,707 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-01-20 14:52:46,707 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-01-20 14:52:46,707 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2021-01-20 14:52:46,707 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2021-01-20 14:52:46,707 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2021-01-20 14:52:46,707 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2021-01-20 14:52:46,707 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2021-01-20 14:52:46,708 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2021-01-20 14:52:46,708 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2021-01-20 14:52:46,708 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2021-01-20 14:52:46,708 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-01-20 14:52:46,708 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-01-20 14:52:46,708 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-01-20 14:52:46,709 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-01-20 14:52:46,713 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 14:52:47,364 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-01-20 14:52:47,365 INFO L298 CfgBuilder]: Removed 10 assume(true) statements. [2021-01-20 14:52:47,368 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.01 02:52:47 BoogieIcfgContainer [2021-01-20 14:52:47,369 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-01-20 14:52:47,371 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-01-20 14:52:47,371 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-01-20 14:52:47,375 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-01-20 14:52:47,375 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.01 02:52:45" (1/3) ... [2021-01-20 14:52:47,376 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@adc1bb0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.01 02:52:47, skipping insertion in model container [2021-01-20 14:52:47,376 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 02:52:46" (2/3) ... [2021-01-20 14:52:47,377 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@adc1bb0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.01 02:52:47, skipping insertion in model container [2021-01-20 14:52:47,377 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.01 02:52:47" (3/3) ... [2021-01-20 14:52:47,378 INFO L111 eAbstractionObserver]: Analyzing ICFG thin002_tso.oepc.i [2021-01-20 14:52:47,400 WARN L168 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-01-20 14:52:47,401 INFO L179 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-01-20 14:52:47,405 INFO L191 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-01-20 14:52:47,406 INFO L351 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-01-20 14:52:47,469 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:52:47,469 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:52:47,470 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:52:47,470 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:52:47,471 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:52:47,471 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:52:47,472 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:52:47,472 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:52:47,472 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:52:47,472 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:52:47,473 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:52:47,473 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:52:47,475 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:52:47,475 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:52:47,475 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:52:47,475 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:52:47,476 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:52:47,476 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:52:47,476 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:52:47,476 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:52:47,477 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:52:47,478 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:52:47,478 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:52:47,479 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:52:47,480 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:52:47,480 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:52:47,480 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:52:47,480 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:52:47,481 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:52:47,481 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:52:47,481 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:52:47,481 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:52:47,483 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:52:47,483 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:52:47,483 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:52:47,484 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:52:47,485 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:52:47,485 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:52:47,486 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:52:47,486 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:52:47,487 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:52:47,487 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:52:47,487 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:52:47,487 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:52:47,488 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:52:47,488 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:52:47,488 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:52:47,489 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:52:47,492 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:52:47,493 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:52:47,493 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:52:47,493 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:52:47,502 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:52:47,503 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:52:47,503 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:52:47,503 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:52:47,511 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:52:47,512 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:52:47,512 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:52:47,512 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:52:47,516 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:52:47,516 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:52:47,517 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:52:47,517 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:52:47,521 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-01-20 14:52:47,536 INFO L253 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2021-01-20 14:52:47,573 INFO L377 AbstractCegarLoop]: Interprodecural is true [2021-01-20 14:52:47,573 INFO L378 AbstractCegarLoop]: Hoare is true [2021-01-20 14:52:47,573 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-01-20 14:52:47,573 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-01-20 14:52:47,573 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-01-20 14:52:47,574 INFO L382 AbstractCegarLoop]: Difference is false [2021-01-20 14:52:47,574 INFO L383 AbstractCegarLoop]: Minimize is NONE [2021-01-20 14:52:47,574 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-01-20 14:52:47,593 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 105 places, 95 transitions, 210 flow [2021-01-20 14:53:01,354 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 73649 states, 73647 states have (on average 4.471315871658044) internal successors, (329299), 73648 states have internal predecessors, (329299), 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 14:53:01,529 INFO L276 IsEmpty]: Start isEmpty. Operand has 73649 states, 73647 states have (on average 4.471315871658044) internal successors, (329299), 73648 states have internal predecessors, (329299), 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 14:53:01,901 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2021-01-20 14:53:01,901 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 14:53:01,902 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 14:53:01,904 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-20 14:53:01,917 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 14:53:01,918 INFO L82 PathProgramCache]: Analyzing trace with hash 207288984, now seen corresponding path program 1 times [2021-01-20 14:53:01,941 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 14:53:01,941 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1612706559] [2021-01-20 14:53:01,942 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 14:53:02,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 14:53:02,518 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 14:53:02,519 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1612706559] [2021-01-20 14:53:02,519 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 14:53:02,520 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-01-20 14:53:02,521 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1805215520] [2021-01-20 14:53:02,526 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-01-20 14:53:02,526 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 14:53:02,541 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-01-20 14:53:02,542 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-01-20 14:53:02,629 INFO L87 Difference]: Start difference. First operand has 73649 states, 73647 states have (on average 4.471315871658044) internal successors, (329299), 73648 states have internal predecessors, (329299), 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 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 14:53:04,300 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 14:53:04,300 INFO L93 Difference]: Finished difference Result 93543 states and 406523 transitions. [2021-01-20 14:53:04,301 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-01-20 14:53:04,302 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 14:53:04,303 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 14:53:05,121 INFO L225 Difference]: With dead ends: 93543 [2021-01-20 14:53:05,121 INFO L226 Difference]: Without dead ends: 32146 [2021-01-20 14:53:05,124 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 14:53:05,124 INFO L78 Accepts]: Start accepts. Automaton has 32146 states. Word has length 49 [2021-01-20 14:53:05,126 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 14:53:05,127 INFO L481 AbstractCegarLoop]: Abstraction has 32146 states. [2021-01-20 14:53:05,127 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 14:53:05,127 INFO L276 IsEmpty]: Start isEmpty. Operand 32146 states. [2021-01-20 14:53:05,211 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2021-01-20 14:53:05,211 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 14:53:05,212 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 14:53:05,212 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-01-20 14:53:05,212 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-20 14:53:05,214 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 14:53:05,215 INFO L82 PathProgramCache]: Analyzing trace with hash -2026880935, now seen corresponding path program 1 times [2021-01-20 14:53:05,215 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 14:53:05,215 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1822056347] [2021-01-20 14:53:05,215 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 14:53:05,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 14:53:05,516 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 14:53:05,516 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1822056347] [2021-01-20 14:53:05,517 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 14:53:05,517 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-01-20 14:53:05,517 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [857940700] [2021-01-20 14:53:05,520 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-01-20 14:53:05,520 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 14:53:05,521 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-01-20 14:53:05,522 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-01-20 14:53:05,522 INFO L87 Difference]: Start difference. First operand 32146 states. Second operand has 6 states, 6 states have (on average 8.5) internal successors, (51), 6 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 14:53:06,318 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 14:53:06,318 INFO L93 Difference]: Finished difference Result 35086 states and 148580 transitions. [2021-01-20 14:53:06,318 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-01-20 14:53:06,319 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.5) internal successors, (51), 6 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 51 [2021-01-20 14:53:06,319 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 14:53:06,589 INFO L225 Difference]: With dead ends: 35086 [2021-01-20 14:53:06,590 INFO L226 Difference]: Without dead ends: 28226 [2021-01-20 14:53:06,591 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 14:53:06,592 INFO L78 Accepts]: Start accepts. Automaton has 28226 states. Word has length 51 [2021-01-20 14:53:06,592 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 14:53:06,592 INFO L481 AbstractCegarLoop]: Abstraction has 28226 states. [2021-01-20 14:53:06,593 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 8.5) internal successors, (51), 6 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 14:53:06,593 INFO L276 IsEmpty]: Start isEmpty. Operand 28226 states. [2021-01-20 14:53:06,687 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2021-01-20 14:53:06,688 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 14:53:06,688 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 14:53:06,689 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-01-20 14:53:06,689 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-20 14:53:06,690 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 14:53:06,690 INFO L82 PathProgramCache]: Analyzing trace with hash 412575002, now seen corresponding path program 1 times [2021-01-20 14:53:06,690 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 14:53:06,691 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1752735255] [2021-01-20 14:53:06,691 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 14:53:06,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 14:53:06,896 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 14:53:06,896 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1752735255] [2021-01-20 14:53:06,897 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 14:53:06,897 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-01-20 14:53:06,897 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2106229899] [2021-01-20 14:53:06,898 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-01-20 14:53:06,898 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 14:53:06,901 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-01-20 14:53:06,902 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-01-20 14:53:06,902 INFO L87 Difference]: Start difference. First operand 28226 states. 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 14:53:07,497 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 14:53:07,497 INFO L93 Difference]: Finished difference Result 30326 states and 127602 transitions. [2021-01-20 14:53:07,510 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-01-20 14:53:07,511 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 14:53:07,511 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 14:53:07,676 INFO L225 Difference]: With dead ends: 30326 [2021-01-20 14:53:07,676 INFO L226 Difference]: Without dead ends: 25426 [2021-01-20 14:53:07,677 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 14:53:07,677 INFO L78 Accepts]: Start accepts. Automaton has 25426 states. Word has length 53 [2021-01-20 14:53:07,678 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 14:53:07,678 INFO L481 AbstractCegarLoop]: Abstraction has 25426 states. [2021-01-20 14:53:07,679 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 14:53:07,679 INFO L276 IsEmpty]: Start isEmpty. Operand 25426 states. [2021-01-20 14:53:07,801 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2021-01-20 14:53:07,801 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 14:53:07,801 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, 1, 1] [2021-01-20 14:53:07,802 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-01-20 14:53:07,802 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-20 14:53:07,802 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 14:53:07,803 INFO L82 PathProgramCache]: Analyzing trace with hash -1445512613, now seen corresponding path program 1 times [2021-01-20 14:53:07,803 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 14:53:07,804 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1465599266] [2021-01-20 14:53:07,805 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 14:53:07,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 14:53:07,997 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 14:53:07,997 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1465599266] [2021-01-20 14:53:07,998 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 14:53:07,998 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-01-20 14:53:07,998 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [593875225] [2021-01-20 14:53:07,998 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-01-20 14:53:07,999 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 14:53:08,000 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-01-20 14:53:08,001 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-01-20 14:53:08,002 INFO L87 Difference]: Start difference. First operand 25426 states. Second operand has 7 states, 7 states have (on average 7.857142857142857) internal successors, (55), 7 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 14:53:08,767 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 14:53:08,767 INFO L93 Difference]: Finished difference Result 34946 states and 146178 transitions. [2021-01-20 14:53:08,768 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-01-20 14:53:08,768 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.857142857142857) internal successors, (55), 7 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 55 [2021-01-20 14:53:08,769 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 14:53:08,864 INFO L225 Difference]: With dead ends: 34946 [2021-01-20 14:53:08,865 INFO L226 Difference]: Without dead ends: 18461 [2021-01-20 14:53:08,865 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182 [2021-01-20 14:53:08,866 INFO L78 Accepts]: Start accepts. Automaton has 18461 states. Word has length 55 [2021-01-20 14:53:08,866 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 14:53:08,867 INFO L481 AbstractCegarLoop]: Abstraction has 18461 states. [2021-01-20 14:53:08,867 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 7.857142857142857) internal successors, (55), 7 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 14:53:08,867 INFO L276 IsEmpty]: Start isEmpty. Operand 18461 states. [2021-01-20 14:53:08,925 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2021-01-20 14:53:08,926 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 14:53:08,926 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, 1, 1, 1] [2021-01-20 14:53:08,926 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-01-20 14:53:08,926 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-20 14:53:08,927 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 14:53:08,927 INFO L82 PathProgramCache]: Analyzing trace with hash 347828795, now seen corresponding path program 1 times [2021-01-20 14:53:08,927 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 14:53:08,928 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1848943709] [2021-01-20 14:53:08,928 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 14:53:08,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 14:53:09,061 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 14:53:09,062 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1848943709] [2021-01-20 14:53:09,062 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 14:53:09,062 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-01-20 14:53:09,063 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1687074746] [2021-01-20 14:53:09,063 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-01-20 14:53:09,063 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 14:53:09,064 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-01-20 14:53:09,064 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-01-20 14:53:09,065 INFO L87 Difference]: Start difference. First operand 18461 states. Second operand has 7 states, 7 states have (on average 8.0) internal successors, (56), 7 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 14:53:09,448 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 14:53:09,449 INFO L93 Difference]: Finished difference Result 23621 states and 96315 transitions. [2021-01-20 14:53:09,449 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-01-20 14:53:09,450 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.0) internal successors, (56), 7 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 56 [2021-01-20 14:53:09,450 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 14:53:09,498 INFO L225 Difference]: With dead ends: 23621 [2021-01-20 14:53:09,498 INFO L226 Difference]: Without dead ends: 11651 [2021-01-20 14:53:09,498 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182 [2021-01-20 14:53:09,499 INFO L78 Accepts]: Start accepts. Automaton has 11651 states. Word has length 56 [2021-01-20 14:53:09,499 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 14:53:09,499 INFO L481 AbstractCegarLoop]: Abstraction has 11651 states. [2021-01-20 14:53:09,499 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 8.0) internal successors, (56), 7 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 14:53:09,500 INFO L276 IsEmpty]: Start isEmpty. Operand 11651 states. [2021-01-20 14:53:09,530 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2021-01-20 14:53:09,530 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 14:53:09,531 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, 1, 1, 1, 1, 1, 1] [2021-01-20 14:53:09,531 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-01-20 14:53:09,531 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-20 14:53:09,531 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 14:53:09,532 INFO L82 PathProgramCache]: Analyzing trace with hash 1018607020, now seen corresponding path program 1 times [2021-01-20 14:53:09,532 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 14:53:09,532 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [896271188] [2021-01-20 14:53:09,532 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 14:53:09,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 14:53:09,718 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 14:53:09,718 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [896271188] [2021-01-20 14:53:09,718 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 14:53:09,719 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-01-20 14:53:09,719 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [36987118] [2021-01-20 14:53:09,719 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-01-20 14:53:09,720 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 14:53:09,720 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-01-20 14:53:09,721 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-01-20 14:53:09,721 INFO L87 Difference]: Start difference. First operand 11651 states. Second operand has 7 states, 7 states have (on average 8.428571428571429) internal successors, (59), 7 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 14:53:10,415 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 14:53:10,416 INFO L93 Difference]: Finished difference Result 15971 states and 63871 transitions. [2021-01-20 14:53:10,421 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-01-20 14:53:10,421 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.428571428571429) internal successors, (59), 7 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 59 [2021-01-20 14:53:10,422 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 14:53:10,444 INFO L225 Difference]: With dead ends: 15971 [2021-01-20 14:53:10,444 INFO L226 Difference]: Without dead ends: 7231 [2021-01-20 14:53:10,444 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182 [2021-01-20 14:53:10,444 INFO L78 Accepts]: Start accepts. Automaton has 7231 states. Word has length 59 [2021-01-20 14:53:10,445 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 14:53:10,445 INFO L481 AbstractCegarLoop]: Abstraction has 7231 states. [2021-01-20 14:53:10,445 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 8.428571428571429) internal successors, (59), 7 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 14:53:10,445 INFO L276 IsEmpty]: Start isEmpty. Operand 7231 states. [2021-01-20 14:53:10,458 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2021-01-20 14:53:10,458 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 14:53:10,458 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-20 14:53:10,459 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-01-20 14:53:10,459 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-20 14:53:10,459 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 14:53:10,459 INFO L82 PathProgramCache]: Analyzing trace with hash 792710772, now seen corresponding path program 1 times [2021-01-20 14:53:10,460 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 14:53:10,460 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1058757013] [2021-01-20 14:53:10,460 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 14:53:10,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 14:53:10,633 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 14:53:10,633 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1058757013] [2021-01-20 14:53:10,634 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 14:53:10,634 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-01-20 14:53:10,634 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [983130837] [2021-01-20 14:53:10,635 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-01-20 14:53:10,635 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 14:53:10,635 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-01-20 14:53:10,636 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-01-20 14:53:10,637 INFO L87 Difference]: Start difference. First operand 7231 states. Second operand has 7 states, 7 states have (on average 8.571428571428571) internal successors, (60), 7 states have internal predecessors, (60), 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 14:53:10,844 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 14:53:10,844 INFO L93 Difference]: Finished difference Result 5951 states and 22991 transitions. [2021-01-20 14:53:10,844 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-01-20 14:53:10,845 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.571428571428571) internal successors, (60), 7 states have internal predecessors, (60), 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 60 [2021-01-20 14:53:10,845 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 14:53:10,845 INFO L225 Difference]: With dead ends: 5951 [2021-01-20 14:53:10,845 INFO L226 Difference]: Without dead ends: 0 [2021-01-20 14:53:10,846 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182 [2021-01-20 14:53:10,846 INFO L78 Accepts]: Start accepts. Automaton has 0 states. Word has length 60 [2021-01-20 14:53:10,846 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 14:53:10,846 INFO L481 AbstractCegarLoop]: Abstraction has 0 states. [2021-01-20 14:53:10,846 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 8.571428571428571) internal successors, (60), 7 states have internal predecessors, (60), 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 14:53:10,846 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states. [2021-01-20 14:53:10,847 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-01-20 14:53:10,847 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-01-20 14:53:10,852 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.01 02:53:10 BasicIcfg [2021-01-20 14:53:10,853 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-01-20 14:53:10,856 INFO L168 Benchmark]: Toolchain (without parser) took 25065.50 ms. Allocated memory was 302.0 MB in the beginning and 7.0 GB in the end (delta: 6.7 GB). Free memory was 276.0 MB in the beginning and 6.1 GB in the end (delta: -5.8 GB). Peak memory consumption was 879.2 MB. Max. memory is 16.0 GB. [2021-01-20 14:53:10,857 INFO L168 Benchmark]: CDTParser took 0.80 ms. Allocated memory is still 302.0 MB. Free memory is still 272.8 MB. There was no memory consumed. Max. memory is 16.0 GB. [2021-01-20 14:53:10,864 INFO L168 Benchmark]: CACSL2BoogieTranslator took 719.09 ms. Allocated memory is still 302.0 MB. Free memory was 275.8 MB in the beginning and 275.4 MB in the end (delta: 347.2 kB). Peak memory consumption was 30.1 MB. Max. memory is 16.0 GB. [2021-01-20 14:53:10,865 INFO L168 Benchmark]: Boogie Procedure Inliner took 60.63 ms. Allocated memory is still 302.0 MB. Free memory was 275.4 MB in the beginning and 273.4 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-01-20 14:53:10,865 INFO L168 Benchmark]: Boogie Preprocessor took 57.27 ms. Allocated memory is still 302.0 MB. Free memory was 273.4 MB in the beginning and 272.3 MB in the end (delta: 1.0 MB). There was no memory consumed. Max. memory is 16.0 GB. [2021-01-20 14:53:10,866 INFO L168 Benchmark]: RCFGBuilder took 735.15 ms. Allocated memory is still 302.0 MB. Free memory was 272.3 MB in the beginning and 247.1 MB in the end (delta: 25.2 MB). Peak memory consumption was 25.2 MB. Max. memory is 16.0 GB. [2021-01-20 14:53:10,867 INFO L168 Benchmark]: TraceAbstraction took 23481.92 ms. Allocated memory was 302.0 MB in the beginning and 7.0 GB in the end (delta: 6.7 GB). Free memory was 247.1 MB in the beginning and 6.1 GB in the end (delta: -5.8 GB). Peak memory consumption was 849.0 MB. Max. memory is 16.0 GB. [2021-01-20 14:53:10,883 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.80 ms. Allocated memory is still 302.0 MB. Free memory is still 272.8 MB. There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 719.09 ms. Allocated memory is still 302.0 MB. Free memory was 275.8 MB in the beginning and 275.4 MB in the end (delta: 347.2 kB). Peak memory consumption was 30.1 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 60.63 ms. Allocated memory is still 302.0 MB. Free memory was 275.4 MB in the beginning and 273.4 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 57.27 ms. Allocated memory is still 302.0 MB. Free memory was 273.4 MB in the beginning and 272.3 MB in the end (delta: 1.0 MB). There was no memory consumed. Max. memory is 16.0 GB. * RCFGBuilder took 735.15 ms. Allocated memory is still 302.0 MB. Free memory was 272.3 MB in the beginning and 247.1 MB in the end (delta: 25.2 MB). Peak memory consumption was 25.2 MB. Max. memory is 16.0 GB. * TraceAbstraction took 23481.92 ms. Allocated memory was 302.0 MB in the beginning and 7.0 GB in the end (delta: 6.7 GB). Free memory was 247.1 MB in the beginning and 6.1 GB in the end (delta: -5.8 GB). Peak memory consumption was 849.0 MB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 17]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 93 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 23.2s, OverallIterations: 7, TraceHistogramMax: 1, AutomataDifference: 6.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 13.7s, HoareTripleCheckerStatistics: 878 SDtfs, 1231 SDslu, 2699 SDs, 0 SdLazy, 169 SolverSat, 8 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 89 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 75 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 68 ImplicationChecksByTransitivity, 1.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=73649occurred 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, 1.1s InterpolantComputationTime, 383 NumberOfCodeBlocks, 383 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 376 ConstructedInterpolants, 0 QuantifiedInterpolants, 58156 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 7 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...