/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/pthread-wmm/thin002_tso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c7e336b [2020-10-05 22:53:37,076 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-05 22:53:37,079 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-05 22:53:37,119 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-05 22:53:37,120 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-05 22:53:37,132 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-05 22:53:37,133 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-05 22:53:37,137 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-05 22:53:37,140 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-05 22:53:37,143 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-05 22:53:37,144 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-05 22:53:37,146 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-05 22:53:37,146 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-05 22:53:37,149 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-05 22:53:37,152 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-05 22:53:37,153 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-05 22:53:37,155 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-05 22:53:37,157 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-05 22:53:37,159 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-05 22:53:37,167 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-05 22:53:37,170 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-05 22:53:37,171 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-05 22:53:37,172 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-05 22:53:37,173 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-05 22:53:37,177 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-10-05 22:53:37,183 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-05 22:53:37,184 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-05 22:53:37,184 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-05 22:53:37,185 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-05 22:53:37,186 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-05 22:53:37,186 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-05 22:53:37,187 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-05 22:53:37,187 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-05 22:53:37,188 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-05 22:53:37,189 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-05 22:53:37,190 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-05 22:53:37,191 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-05 22:53:37,236 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-05 22:53:37,237 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-05 22:53:37,239 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-05 22:53:37,240 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-05 22:53:37,240 INFO L138 SettingsManager]: * Use SBE=true [2020-10-05 22:53:37,240 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-05 22:53:37,240 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-05 22:53:37,240 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-05 22:53:37,241 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-05 22:53:37,241 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-05 22:53:37,242 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-05 22:53:37,242 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-05 22:53:37,242 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-05 22:53:37,243 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-05 22:53:37,243 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-05 22:53:37,243 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-05 22:53:37,243 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-05 22:53:37,244 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-05 22:53:37,244 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-05 22:53:37,244 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-05 22:53:37,244 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-05 22:53:37,244 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-05 22:53:37,245 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-05 22:53:37,245 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-05 22:53:37,245 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-05 22:53:37,245 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-05 22:53:37,245 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-05 22:53:37,245 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-05 22:53:37,246 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-05 22:53:37,246 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-10-05 22:53:37,575 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-05 22:53:37,586 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-05 22:53:37,590 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-05 22:53:37,591 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-05 22:53:37,594 INFO L275 PluginConnector]: CDTParser initialized [2020-10-05 22:53:37,595 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/thin002_tso.opt.i [2020-10-05 22:53:37,655 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/99e79c06e/adbc7c27c43f46949b579dcb4cf56b59/FLAG0aded6ec5 [2020-10-05 22:53:38,163 INFO L306 CDTParser]: Found 1 translation units. [2020-10-05 22:53:38,164 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/thin002_tso.opt.i [2020-10-05 22:53:38,184 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/99e79c06e/adbc7c27c43f46949b579dcb4cf56b59/FLAG0aded6ec5 [2020-10-05 22:53:38,487 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/99e79c06e/adbc7c27c43f46949b579dcb4cf56b59 [2020-10-05 22:53:38,499 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-05 22:53:38,501 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-10-05 22:53:38,502 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-05 22:53:38,502 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-05 22:53:38,506 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-05 22:53:38,507 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.10 10:53:38" (1/1) ... [2020-10-05 22:53:38,510 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@42c1db2e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.10 10:53:38, skipping insertion in model container [2020-10-05 22:53:38,511 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.10 10:53:38" (1/1) ... [2020-10-05 22:53:38,519 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-05 22:53:38,603 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-05 22:53:39,133 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-05 22:53:39,146 INFO L203 MainTranslator]: Completed pre-run [2020-10-05 22:53:39,191 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-05 22:53:39,273 INFO L208 MainTranslator]: Completed translation [2020-10-05 22:53:39,273 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.10 10:53:39 WrapperNode [2020-10-05 22:53:39,274 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-05 22:53:39,274 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-05 22:53:39,275 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-05 22:53:39,275 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-05 22:53:39,284 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.10 10:53:39" (1/1) ... [2020-10-05 22:53:39,301 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.10 10:53:39" (1/1) ... [2020-10-05 22:53:39,325 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-05 22:53:39,326 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-05 22:53:39,326 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-05 22:53:39,326 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-05 22:53:39,336 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.10 10:53:39" (1/1) ... [2020-10-05 22:53:39,336 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.10 10:53:39" (1/1) ... [2020-10-05 22:53:39,339 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.10 10:53:39" (1/1) ... [2020-10-05 22:53:39,340 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.10 10:53:39" (1/1) ... [2020-10-05 22:53:39,346 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.10 10:53:39" (1/1) ... [2020-10-05 22:53:39,349 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.10 10:53:39" (1/1) ... [2020-10-05 22:53:39,351 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.10 10:53:39" (1/1) ... [2020-10-05 22:53:39,355 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-05 22:53:39,355 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-05 22:53:39,356 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-05 22:53:39,356 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-05 22:53:39,357 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.10 10:53:39" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-05 22:53:39,438 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-05 22:53:39,438 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-10-05 22:53:39,439 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-05 22:53:39,439 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-05 22:53:39,439 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-10-05 22:53:39,439 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-10-05 22:53:39,439 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-10-05 22:53:39,439 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-10-05 22:53:39,440 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-10-05 22:53:39,440 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-10-05 22:53:39,440 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2020-10-05 22:53:39,440 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2020-10-05 22:53:39,440 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-10-05 22:53:39,441 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-05 22:53:39,441 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-05 22:53:39,443 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-10-05 22:53:39,873 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-05 22:53:39,874 INFO L298 CfgBuilder]: Removed 8 assume(true) statements. [2020-10-05 22:53:39,876 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.10 10:53:39 BoogieIcfgContainer [2020-10-05 22:53:39,877 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-05 22:53:39,879 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-05 22:53:39,879 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-05 22:53:39,882 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-05 22:53:39,883 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 05.10 10:53:38" (1/3) ... [2020-10-05 22:53:39,884 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@21cd20fd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.10 10:53:39, skipping insertion in model container [2020-10-05 22:53:39,884 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.10 10:53:39" (2/3) ... [2020-10-05 22:53:39,884 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@21cd20fd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.10 10:53:39, skipping insertion in model container [2020-10-05 22:53:39,885 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.10 10:53:39" (3/3) ... [2020-10-05 22:53:39,886 INFO L109 eAbstractionObserver]: Analyzing ICFG thin002_tso.opt.i [2020-10-05 22:53:39,897 WARN L146 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-10-05 22:53:39,898 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-05 22:53:39,908 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-05 22:53:39,909 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-10-05 22:53:39,951 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:53:39,952 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:53:39,952 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:53:39,952 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:53:39,953 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:53:39,953 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:53:39,954 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:53:39,954 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:53:39,955 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:53:39,955 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:53:39,957 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:53:39,958 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:53:39,958 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:53:39,959 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:53:39,959 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:53:39,959 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:53:39,959 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:53:39,960 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:53:39,960 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:53:39,961 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:53:39,961 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:53:39,961 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:53:39,964 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:53:39,965 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:53:39,969 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:53:39,970 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:53:39,970 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:53:39,970 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:53:39,975 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:53:39,975 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:53:39,976 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:53:39,976 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:53:39,978 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:53:39,978 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:53:39,978 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:53:39,978 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:53:39,981 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:53:39,981 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:53:39,981 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:53:39,981 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:53:39,995 INFO L251 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2020-10-05 22:53:40,012 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-05 22:53:40,013 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-05 22:53:40,013 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-05 22:53:40,013 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-05 22:53:40,013 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-05 22:53:40,013 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-05 22:53:40,013 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-05 22:53:40,013 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-05 22:53:40,027 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 97 places, 86 transitions, 192 flow [2020-10-05 22:53:40,029 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 97 places, 86 transitions, 192 flow [2020-10-05 22:53:40,080 INFO L129 PetriNetUnfolder]: 2/82 cut-off events. [2020-10-05 22:53:40,081 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-10-05 22:53:40,087 INFO L80 FinitePrefix]: Finished finitePrefix Result has 95 conditions, 82 events. 2/82 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 66 event pairs, 0 based on Foata normal form. 0/79 useless extension candidates. Maximal degree in co-relation 69. Up to 2 conditions per place. [2020-10-05 22:53:40,091 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 97 places, 86 transitions, 192 flow [2020-10-05 22:53:40,123 INFO L129 PetriNetUnfolder]: 2/82 cut-off events. [2020-10-05 22:53:40,123 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-10-05 22:53:40,124 INFO L80 FinitePrefix]: Finished finitePrefix Result has 95 conditions, 82 events. 2/82 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 66 event pairs, 0 based on Foata normal form. 0/79 useless extension candidates. Maximal degree in co-relation 69. Up to 2 conditions per place. [2020-10-05 22:53:40,128 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 2016 [2020-10-05 22:53:40,129 INFO L170 etLargeBlockEncoding]: Semantic Check. [2020-10-05 22:53:41,816 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 55 [2020-10-05 22:53:41,884 INFO L206 etLargeBlockEncoding]: Checked pairs total: 4485 [2020-10-05 22:53:41,885 INFO L214 etLargeBlockEncoding]: Total number of compositions: 67 [2020-10-05 22:53:41,889 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 41 places, 29 transitions, 78 flow [2020-10-05 22:53:41,985 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 1450 states. [2020-10-05 22:53:41,987 INFO L276 IsEmpty]: Start isEmpty. Operand 1450 states. [2020-10-05 22:53:41,997 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-10-05 22:53:41,998 INFO L414 BasicCegarLoop]: Found error trace [2020-10-05 22:53:41,999 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-05 22:53:41,999 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-05 22:53:42,005 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-05 22:53:42,005 INFO L82 PathProgramCache]: Analyzing trace with hash 546901279, now seen corresponding path program 1 times [2020-10-05 22:53:42,015 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-05 22:53:42,016 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1201140303] [2020-10-05 22:53:42,016 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-05 22:53:42,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-05 22:53:42,220 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-05 22:53:42,221 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1201140303] [2020-10-05 22:53:42,222 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-05 22:53:42,222 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-05 22:53:42,223 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [887289947] [2020-10-05 22:53:42,228 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-10-05 22:53:42,229 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-05 22:53:42,244 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-10-05 22:53:42,245 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-10-05 22:53:42,247 INFO L87 Difference]: Start difference. First operand 1450 states. Second operand 2 states. [2020-10-05 22:53:42,330 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-05 22:53:42,331 INFO L93 Difference]: Finished difference Result 1450 states and 5376 transitions. [2020-10-05 22:53:42,331 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-10-05 22:53:42,332 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 10 [2020-10-05 22:53:42,333 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-05 22:53:42,391 INFO L225 Difference]: With dead ends: 1450 [2020-10-05 22:53:42,391 INFO L226 Difference]: Without dead ends: 1194 [2020-10-05 22:53:42,393 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-10-05 22:53:42,470 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1194 states. [2020-10-05 22:53:42,561 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1194 to 1194. [2020-10-05 22:53:42,563 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1194 states. [2020-10-05 22:53:42,571 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1194 states to 1194 states and 4352 transitions. [2020-10-05 22:53:42,573 INFO L78 Accepts]: Start accepts. Automaton has 1194 states and 4352 transitions. Word has length 10 [2020-10-05 22:53:42,574 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-05 22:53:42,574 INFO L479 AbstractCegarLoop]: Abstraction has 1194 states and 4352 transitions. [2020-10-05 22:53:42,574 INFO L480 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-10-05 22:53:42,575 INFO L276 IsEmpty]: Start isEmpty. Operand 1194 states and 4352 transitions. [2020-10-05 22:53:42,577 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-10-05 22:53:42,578 INFO L414 BasicCegarLoop]: Found error trace [2020-10-05 22:53:42,578 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-05 22:53:42,578 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-05 22:53:42,578 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-05 22:53:42,579 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-05 22:53:42,579 INFO L82 PathProgramCache]: Analyzing trace with hash -225951647, now seen corresponding path program 1 times [2020-10-05 22:53:42,579 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-05 22:53:42,580 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [290598465] [2020-10-05 22:53:42,580 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-05 22:53:42,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-05 22:53:42,709 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-05 22:53:42,710 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [290598465] [2020-10-05 22:53:42,710 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-05 22:53:42,710 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-05 22:53:42,710 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [697800554] [2020-10-05 22:53:42,712 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-05 22:53:42,712 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-05 22:53:42,712 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-05 22:53:42,713 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-05 22:53:42,713 INFO L87 Difference]: Start difference. First operand 1194 states and 4352 transitions. Second operand 4 states. [2020-10-05 22:53:42,757 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-05 22:53:42,758 INFO L93 Difference]: Finished difference Result 1322 states and 4640 transitions. [2020-10-05 22:53:42,758 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-05 22:53:42,758 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2020-10-05 22:53:42,759 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-05 22:53:42,768 INFO L225 Difference]: With dead ends: 1322 [2020-10-05 22:53:42,769 INFO L226 Difference]: Without dead ends: 1066 [2020-10-05 22:53:42,770 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-05 22:53:42,776 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1066 states. [2020-10-05 22:53:42,807 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1066 to 1066. [2020-10-05 22:53:42,808 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1066 states. [2020-10-05 22:53:42,816 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1066 states to 1066 states and 3808 transitions. [2020-10-05 22:53:42,816 INFO L78 Accepts]: Start accepts. Automaton has 1066 states and 3808 transitions. Word has length 11 [2020-10-05 22:53:42,817 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-05 22:53:42,817 INFO L479 AbstractCegarLoop]: Abstraction has 1066 states and 3808 transitions. [2020-10-05 22:53:42,817 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-05 22:53:42,817 INFO L276 IsEmpty]: Start isEmpty. Operand 1066 states and 3808 transitions. [2020-10-05 22:53:42,820 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-10-05 22:53:42,820 INFO L414 BasicCegarLoop]: Found error trace [2020-10-05 22:53:42,820 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-05 22:53:42,820 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-05 22:53:42,820 INFO L427 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-05 22:53:42,821 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-05 22:53:42,821 INFO L82 PathProgramCache]: Analyzing trace with hash -1527944373, now seen corresponding path program 1 times [2020-10-05 22:53:42,821 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-05 22:53:42,821 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1790576203] [2020-10-05 22:53:42,822 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-05 22:53:42,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-05 22:53:42,895 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-05 22:53:42,895 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1790576203] [2020-10-05 22:53:42,895 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-05 22:53:42,896 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-05 22:53:42,896 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1581129631] [2020-10-05 22:53:42,896 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-05 22:53:42,897 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-05 22:53:42,897 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-05 22:53:42,897 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-05 22:53:42,897 INFO L87 Difference]: Start difference. First operand 1066 states and 3808 transitions. Second operand 4 states. [2020-10-05 22:53:42,928 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-05 22:53:42,928 INFO L93 Difference]: Finished difference Result 1162 states and 4016 transitions. [2020-10-05 22:53:42,929 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-05 22:53:42,929 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 12 [2020-10-05 22:53:42,929 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-05 22:53:42,938 INFO L225 Difference]: With dead ends: 1162 [2020-10-05 22:53:42,938 INFO L226 Difference]: Without dead ends: 970 [2020-10-05 22:53:42,939 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-05 22:53:42,945 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 970 states. [2020-10-05 22:53:42,972 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 970 to 970. [2020-10-05 22:53:42,972 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 970 states. [2020-10-05 22:53:42,979 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 970 states to 970 states and 3408 transitions. [2020-10-05 22:53:42,979 INFO L78 Accepts]: Start accepts. Automaton has 970 states and 3408 transitions. Word has length 12 [2020-10-05 22:53:42,979 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-05 22:53:42,980 INFO L479 AbstractCegarLoop]: Abstraction has 970 states and 3408 transitions. [2020-10-05 22:53:42,980 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-05 22:53:42,980 INFO L276 IsEmpty]: Start isEmpty. Operand 970 states and 3408 transitions. [2020-10-05 22:53:42,982 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-10-05 22:53:42,982 INFO L414 BasicCegarLoop]: Found error trace [2020-10-05 22:53:42,982 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-05 22:53:42,982 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-05 22:53:42,982 INFO L427 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-05 22:53:42,983 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-05 22:53:42,983 INFO L82 PathProgramCache]: Analyzing trace with hash -121660302, now seen corresponding path program 1 times [2020-10-05 22:53:42,983 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-05 22:53:42,984 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [776377694] [2020-10-05 22:53:42,984 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-05 22:53:43,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-05 22:53:43,057 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-05 22:53:43,058 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [776377694] [2020-10-05 22:53:43,058 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-05 22:53:43,061 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-05 22:53:43,061 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1590071408] [2020-10-05 22:53:43,061 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-05 22:53:43,062 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-05 22:53:43,062 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-05 22:53:43,062 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-05 22:53:43,062 INFO L87 Difference]: Start difference. First operand 970 states and 3408 transitions. Second operand 5 states. [2020-10-05 22:53:43,124 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-05 22:53:43,125 INFO L93 Difference]: Finished difference Result 1162 states and 3980 transitions. [2020-10-05 22:53:43,125 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-05 22:53:43,125 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 13 [2020-10-05 22:53:43,126 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-05 22:53:43,131 INFO L225 Difference]: With dead ends: 1162 [2020-10-05 22:53:43,132 INFO L226 Difference]: Without dead ends: 634 [2020-10-05 22:53:43,133 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-10-05 22:53:43,136 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 634 states. [2020-10-05 22:53:43,153 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 634 to 634. [2020-10-05 22:53:43,153 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 634 states. [2020-10-05 22:53:43,156 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 634 states to 634 states and 2052 transitions. [2020-10-05 22:53:43,157 INFO L78 Accepts]: Start accepts. Automaton has 634 states and 2052 transitions. Word has length 13 [2020-10-05 22:53:43,157 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-05 22:53:43,157 INFO L479 AbstractCegarLoop]: Abstraction has 634 states and 2052 transitions. [2020-10-05 22:53:43,157 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-05 22:53:43,157 INFO L276 IsEmpty]: Start isEmpty. Operand 634 states and 2052 transitions. [2020-10-05 22:53:43,159 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-10-05 22:53:43,159 INFO L414 BasicCegarLoop]: Found error trace [2020-10-05 22:53:43,159 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-05 22:53:43,159 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-05 22:53:43,160 INFO L427 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-05 22:53:43,160 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-05 22:53:43,160 INFO L82 PathProgramCache]: Analyzing trace with hash -952650144, now seen corresponding path program 1 times [2020-10-05 22:53:43,160 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-05 22:53:43,161 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [853808795] [2020-10-05 22:53:43,161 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-05 22:53:43,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-05 22:53:43,281 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-05 22:53:43,282 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [853808795] [2020-10-05 22:53:43,282 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-05 22:53:43,282 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-05 22:53:43,282 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [20705507] [2020-10-05 22:53:43,283 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-05 22:53:43,283 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-05 22:53:43,283 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-05 22:53:43,283 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-05 22:53:43,284 INFO L87 Difference]: Start difference. First operand 634 states and 2052 transitions. Second operand 5 states. [2020-10-05 22:53:43,326 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-05 22:53:43,326 INFO L93 Difference]: Finished difference Result 850 states and 2690 transitions. [2020-10-05 22:53:43,327 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-05 22:53:43,327 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 15 [2020-10-05 22:53:43,327 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-05 22:53:43,330 INFO L225 Difference]: With dead ends: 850 [2020-10-05 22:53:43,330 INFO L226 Difference]: Without dead ends: 394 [2020-10-05 22:53:43,331 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-10-05 22:53:43,333 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 394 states. [2020-10-05 22:53:43,341 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 394 to 394. [2020-10-05 22:53:43,342 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 394 states. [2020-10-05 22:53:43,343 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 394 states to 394 states and 1168 transitions. [2020-10-05 22:53:43,344 INFO L78 Accepts]: Start accepts. Automaton has 394 states and 1168 transitions. Word has length 15 [2020-10-05 22:53:43,344 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-05 22:53:43,344 INFO L479 AbstractCegarLoop]: Abstraction has 394 states and 1168 transitions. [2020-10-05 22:53:43,344 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-05 22:53:43,344 INFO L276 IsEmpty]: Start isEmpty. Operand 394 states and 1168 transitions. [2020-10-05 22:53:43,345 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-10-05 22:53:43,345 INFO L414 BasicCegarLoop]: Found error trace [2020-10-05 22:53:43,346 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-05 22:53:43,346 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-05 22:53:43,346 INFO L427 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-05 22:53:43,346 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-05 22:53:43,346 INFO L82 PathProgramCache]: Analyzing trace with hash 120484504, now seen corresponding path program 1 times [2020-10-05 22:53:43,347 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-05 22:53:43,347 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [688324932] [2020-10-05 22:53:43,347 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-05 22:53:43,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-05 22:53:43,432 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-05 22:53:43,433 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [688324932] [2020-10-05 22:53:43,433 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-05 22:53:43,434 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-05 22:53:43,434 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1272026745] [2020-10-05 22:53:43,437 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-05 22:53:43,437 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-05 22:53:43,438 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-05 22:53:43,438 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-05 22:53:43,438 INFO L87 Difference]: Start difference. First operand 394 states and 1168 transitions. Second operand 4 states. [2020-10-05 22:53:43,461 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-05 22:53:43,461 INFO L93 Difference]: Finished difference Result 418 states and 1208 transitions. [2020-10-05 22:53:43,462 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-05 22:53:43,462 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 16 [2020-10-05 22:53:43,463 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-05 22:53:43,466 INFO L225 Difference]: With dead ends: 418 [2020-10-05 22:53:43,466 INFO L226 Difference]: Without dead ends: 370 [2020-10-05 22:53:43,466 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-05 22:53:43,468 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 370 states. [2020-10-05 22:53:43,477 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 370 to 370. [2020-10-05 22:53:43,477 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 370 states. [2020-10-05 22:53:43,479 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 370 states to 370 states and 1080 transitions. [2020-10-05 22:53:43,479 INFO L78 Accepts]: Start accepts. Automaton has 370 states and 1080 transitions. Word has length 16 [2020-10-05 22:53:43,479 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-05 22:53:43,479 INFO L479 AbstractCegarLoop]: Abstraction has 370 states and 1080 transitions. [2020-10-05 22:53:43,479 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-05 22:53:43,479 INFO L276 IsEmpty]: Start isEmpty. Operand 370 states and 1080 transitions. [2020-10-05 22:53:43,481 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-10-05 22:53:43,481 INFO L414 BasicCegarLoop]: Found error trace [2020-10-05 22:53:43,481 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-05 22:53:43,481 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-05 22:53:43,481 INFO L427 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-05 22:53:43,481 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-05 22:53:43,482 INFO L82 PathProgramCache]: Analyzing trace with hash 263975146, now seen corresponding path program 1 times [2020-10-05 22:53:43,482 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-05 22:53:43,482 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [655901740] [2020-10-05 22:53:43,482 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-05 22:53:43,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-05 22:53:43,559 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-05 22:53:43,559 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [655901740] [2020-10-05 22:53:43,560 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-05 22:53:43,560 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-05 22:53:43,560 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [436541671] [2020-10-05 22:53:43,561 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-05 22:53:43,561 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-05 22:53:43,561 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-05 22:53:43,562 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-05 22:53:43,562 INFO L87 Difference]: Start difference. First operand 370 states and 1080 transitions. Second operand 5 states. [2020-10-05 22:53:43,608 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-05 22:53:43,608 INFO L93 Difference]: Finished difference Result 430 states and 1240 transitions. [2020-10-05 22:53:43,609 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-05 22:53:43,609 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 17 [2020-10-05 22:53:43,609 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-05 22:53:43,610 INFO L225 Difference]: With dead ends: 430 [2020-10-05 22:53:43,611 INFO L226 Difference]: Without dead ends: 172 [2020-10-05 22:53:43,611 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-10-05 22:53:43,612 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 172 states. [2020-10-05 22:53:43,616 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 172 to 172. [2020-10-05 22:53:43,616 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 172 states. [2020-10-05 22:53:43,617 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 172 states to 172 states and 452 transitions. [2020-10-05 22:53:43,617 INFO L78 Accepts]: Start accepts. Automaton has 172 states and 452 transitions. Word has length 17 [2020-10-05 22:53:43,618 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-05 22:53:43,618 INFO L479 AbstractCegarLoop]: Abstraction has 172 states and 452 transitions. [2020-10-05 22:53:43,618 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-05 22:53:43,618 INFO L276 IsEmpty]: Start isEmpty. Operand 172 states and 452 transitions. [2020-10-05 22:53:43,619 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-10-05 22:53:43,619 INFO L414 BasicCegarLoop]: Found error trace [2020-10-05 22:53:43,619 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-05 22:53:43,619 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-05 22:53:43,619 INFO L427 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-05 22:53:43,619 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-05 22:53:43,620 INFO L82 PathProgramCache]: Analyzing trace with hash -180488596, now seen corresponding path program 1 times [2020-10-05 22:53:43,620 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-05 22:53:43,620 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1987174835] [2020-10-05 22:53:43,620 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-05 22:53:43,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-05 22:53:43,685 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-05 22:53:43,686 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1987174835] [2020-10-05 22:53:43,686 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-05 22:53:43,686 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-05 22:53:43,686 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1421702330] [2020-10-05 22:53:43,687 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-05 22:53:43,687 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-05 22:53:43,687 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-05 22:53:43,687 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-05 22:53:43,688 INFO L87 Difference]: Start difference. First operand 172 states and 452 transitions. Second operand 5 states. [2020-10-05 22:53:43,719 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-05 22:53:43,719 INFO L93 Difference]: Finished difference Result 148 states and 376 transitions. [2020-10-05 22:53:43,719 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-05 22:53:43,720 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 18 [2020-10-05 22:53:43,720 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-05 22:53:43,720 INFO L225 Difference]: With dead ends: 148 [2020-10-05 22:53:43,720 INFO L226 Difference]: Without dead ends: 0 [2020-10-05 22:53:43,721 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-10-05 22:53:43,721 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-05 22:53:43,721 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-05 22:53:43,721 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-05 22:53:43,721 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-05 22:53:43,722 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 18 [2020-10-05 22:53:43,722 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-05 22:53:43,722 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-05 22:53:43,722 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-05 22:53:43,722 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-05 22:53:43,722 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-05 22:53:43,722 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-05 22:53:43,726 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 05.10 10:53:43 BasicIcfg [2020-10-05 22:53:43,726 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-05 22:53:43,729 INFO L168 Benchmark]: Toolchain (without parser) took 5228.00 ms. Allocated memory was 138.9 MB in the beginning and 305.1 MB in the end (delta: 166.2 MB). Free memory was 100.3 MB in the beginning and 219.8 MB in the end (delta: -119.5 MB). Peak memory consumption was 46.7 MB. Max. memory is 7.1 GB. [2020-10-05 22:53:43,729 INFO L168 Benchmark]: CDTParser took 0.52 ms. Allocated memory is still 138.9 MB. Free memory was 120.5 MB in the beginning and 120.3 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. [2020-10-05 22:53:43,730 INFO L168 Benchmark]: CACSL2BoogieTranslator took 771.91 ms. Allocated memory was 138.9 MB in the beginning and 200.8 MB in the end (delta: 61.9 MB). Free memory was 100.0 MB in the beginning and 157.1 MB in the end (delta: -57.1 MB). Peak memory consumption was 22.9 MB. Max. memory is 7.1 GB. [2020-10-05 22:53:43,731 INFO L168 Benchmark]: Boogie Procedure Inliner took 51.26 ms. Allocated memory is still 200.8 MB. Free memory was 157.1 MB in the beginning and 154.4 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 7.1 GB. [2020-10-05 22:53:43,732 INFO L168 Benchmark]: Boogie Preprocessor took 29.08 ms. Allocated memory is still 200.8 MB. Free memory was 154.4 MB in the beginning and 153.0 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 7.1 GB. [2020-10-05 22:53:43,733 INFO L168 Benchmark]: RCFGBuilder took 521.67 ms. Allocated memory is still 200.8 MB. Free memory was 153.0 MB in the beginning and 127.9 MB in the end (delta: 25.1 MB). Peak memory consumption was 25.1 MB. Max. memory is 7.1 GB. [2020-10-05 22:53:43,734 INFO L168 Benchmark]: TraceAbstraction took 3847.92 ms. Allocated memory was 200.8 MB in the beginning and 305.1 MB in the end (delta: 104.3 MB). Free memory was 127.3 MB in the beginning and 219.8 MB in the end (delta: -92.5 MB). Peak memory consumption was 11.8 MB. Max. memory is 7.1 GB. [2020-10-05 22:53:43,738 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.52 ms. Allocated memory is still 138.9 MB. Free memory was 120.5 MB in the beginning and 120.3 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 771.91 ms. Allocated memory was 138.9 MB in the beginning and 200.8 MB in the end (delta: 61.9 MB). Free memory was 100.0 MB in the beginning and 157.1 MB in the end (delta: -57.1 MB). Peak memory consumption was 22.9 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 51.26 ms. Allocated memory is still 200.8 MB. Free memory was 157.1 MB in the beginning and 154.4 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 29.08 ms. Allocated memory is still 200.8 MB. Free memory was 154.4 MB in the beginning and 153.0 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 521.67 ms. Allocated memory is still 200.8 MB. Free memory was 153.0 MB in the beginning and 127.9 MB in the end (delta: 25.1 MB). Peak memory consumption was 25.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 3847.92 ms. Allocated memory was 200.8 MB in the beginning and 305.1 MB in the end (delta: 104.3 MB). Free memory was 127.3 MB in the beginning and 219.8 MB in the end (delta: -92.5 MB). Peak memory consumption was 11.8 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 1.8s, 97 ProgramPointsBefore, 41 ProgramPointsAfterwards, 86 TransitionsBefore, 29 TransitionsAfterwards, 2016 CoEnabledTransitionPairs, 7 FixpointIterations, 17 TrivialSequentialCompositions, 41 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 9 ConcurrentYvCompositions, 1 ChoiceCompositions, 1045 VarBasedMoverChecksPositive, 45 VarBasedMoverChecksNegative, 18 SemBasedMoverChecksPositive, 47 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.3s, 0 MoverChecksTotal, 4485 CheckedPairsTotal, 67 TotalNumberOfCompositions - PositiveResult [Line: 7]: 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, 85 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 3.7s, OverallIterations: 8, TraceHistogramMax: 1, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.9s, HoareTripleCheckerStatistics: 232 SDtfs, 262 SDslu, 320 SDs, 0 SdLazy, 57 SolverSat, 8 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 35 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1450occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 8 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 112 NumberOfCodeBlocks, 112 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 104 ConstructedInterpolants, 0 QuantifiedInterpolants, 4169 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 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...