/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc config/AutomizerReach.xml -s config/svcomp-Reach-64bit-Automizer_Default.epf -i ../sv-benchmarks/c/pthread-wmm/safe025_tso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-4f750a8 [2020-12-22 11:11:51,180 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-22 11:11:51,183 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-22 11:11:51,231 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-22 11:11:51,232 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-22 11:11:51,236 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-22 11:11:51,240 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-22 11:11:51,249 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-22 11:11:51,252 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-22 11:11:51,259 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-22 11:11:51,260 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-22 11:11:51,262 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-22 11:11:51,262 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-22 11:11:51,265 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-22 11:11:51,268 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-22 11:11:51,270 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-22 11:11:51,272 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-22 11:11:51,286 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-22 11:11:51,290 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-22 11:11:51,292 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-22 11:11:51,297 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-22 11:11:51,298 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-22 11:11:51,300 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-22 11:11:51,301 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-22 11:11:51,304 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-22 11:11:51,304 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-22 11:11:51,304 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-22 11:11:51,305 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-22 11:11:51,306 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-22 11:11:51,307 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-22 11:11:51,307 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-22 11:11:51,308 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-22 11:11:51,309 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-22 11:11:51,310 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-22 11:11:51,311 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-22 11:11:51,312 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-22 11:11:51,312 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-22 11:11:51,313 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-22 11:11:51,313 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-22 11:11:51,314 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-22 11:11:51,315 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-22 11:11:51,316 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2020-12-22 11:11:51,343 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-22 11:11:51,343 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-22 11:11:51,345 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-22 11:11:51,345 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-22 11:11:51,345 INFO L138 SettingsManager]: * Use SBE=true [2020-12-22 11:11:51,346 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-22 11:11:51,346 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-22 11:11:51,346 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-22 11:11:51,346 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-22 11:11:51,346 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-22 11:11:51,347 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-22 11:11:51,347 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-22 11:11:51,347 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-22 11:11:51,347 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-22 11:11:51,347 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-22 11:11:51,348 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-22 11:11:51,348 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-22 11:11:51,348 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-22 11:11:51,348 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-22 11:11:51,349 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-22 11:11:51,349 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-22 11:11:51,349 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-12-22 11:11:51,349 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-22 11:11:51,349 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-22 11:11:51,350 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-22 11:11:51,350 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-12-22 11:11:51,750 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-22 11:11:51,778 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-22 11:11:51,781 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-22 11:11:51,782 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-22 11:11:51,783 INFO L275 PluginConnector]: CDTParser initialized [2020-12-22 11:11:51,784 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-wmm/safe025_tso.oepc.i [2020-12-22 11:11:51,868 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ce369fba5/24391abcee44480fa578089bd9a234ef/FLAG2779a8829 [2020-12-22 11:11:52,558 INFO L306 CDTParser]: Found 1 translation units. [2020-12-22 11:11:52,559 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/safe025_tso.oepc.i [2020-12-22 11:11:52,576 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ce369fba5/24391abcee44480fa578089bd9a234ef/FLAG2779a8829 [2020-12-22 11:11:52,838 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ce369fba5/24391abcee44480fa578089bd9a234ef [2020-12-22 11:11:52,841 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-22 11:11:52,843 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-22 11:11:52,845 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-22 11:11:52,845 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-22 11:11:52,852 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-22 11:11:52,853 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 11:11:52" (1/1) ... [2020-12-22 11:11:52,856 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@389f5afa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:11:52, skipping insertion in model container [2020-12-22 11:11:52,856 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 11:11:52" (1/1) ... [2020-12-22 11:11:52,864 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-22 11:11:52,933 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-22 11:11:53,108 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/safe025_tso.oepc.i[950,963] [2020-12-22 11:11:53,346 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-22 11:11:53,357 INFO L203 MainTranslator]: Completed pre-run [2020-12-22 11:11:53,374 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/safe025_tso.oepc.i[950,963] [2020-12-22 11:11:53,414 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-22 11:11:53,548 INFO L208 MainTranslator]: Completed translation [2020-12-22 11:11:53,549 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:11:53 WrapperNode [2020-12-22 11:11:53,549 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-22 11:11:53,550 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-22 11:11:53,551 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-22 11:11:53,551 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-22 11:11:53,560 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:11:53" (1/1) ... [2020-12-22 11:11:53,604 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:11:53" (1/1) ... [2020-12-22 11:11:53,643 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-22 11:11:53,646 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-22 11:11:53,650 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-22 11:11:53,651 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-22 11:11:53,661 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:11:53" (1/1) ... [2020-12-22 11:11:53,662 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:11:53" (1/1) ... [2020-12-22 11:11:53,677 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:11:53" (1/1) ... [2020-12-22 11:11:53,678 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:11:53" (1/1) ... [2020-12-22 11:11:53,691 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:11:53" (1/1) ... [2020-12-22 11:11:53,695 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:11:53" (1/1) ... [2020-12-22 11:11:53,701 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:11:53" (1/1) ... [2020-12-22 11:11:53,707 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-22 11:11:53,710 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-22 11:11:53,711 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-22 11:11:53,711 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-22 11:11:53,713 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:11:53" (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 [2020-12-22 11:11:53,834 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-12-22 11:11:53,834 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-12-22 11:11:53,835 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-22 11:11:53,835 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-12-22 11:11:53,835 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-12-22 11:11:53,836 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-12-22 11:11:53,836 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-12-22 11:11:53,837 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-12-22 11:11:53,837 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-12-22 11:11:53,838 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-12-22 11:11:53,838 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-22 11:11:53,839 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-12-22 11:11:53,840 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-22 11:11:53,840 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-22 11:11:53,842 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-12-22 11:11:54,354 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-22 11:11:54,355 INFO L299 CfgBuilder]: Removed 8 assume(true) statements. [2020-12-22 11:11:54,357 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 11:11:54 BoogieIcfgContainer [2020-12-22 11:11:54,357 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-22 11:11:54,359 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-22 11:11:54,359 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-22 11:11:54,363 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-22 11:11:54,363 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.12 11:11:52" (1/3) ... [2020-12-22 11:11:54,364 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@a1ad3eb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 11:11:54, skipping insertion in model container [2020-12-22 11:11:54,364 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:11:53" (2/3) ... [2020-12-22 11:11:54,364 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@a1ad3eb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 11:11:54, skipping insertion in model container [2020-12-22 11:11:54,365 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 11:11:54" (3/3) ... [2020-12-22 11:11:54,366 INFO L111 eAbstractionObserver]: Analyzing ICFG safe025_tso.oepc.i [2020-12-22 11:11:54,373 WARN L142 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-12-22 11:11:54,374 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-22 11:11:54,379 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-12-22 11:11:54,380 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-12-22 11:11:54,426 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:11:54,426 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:11:54,426 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:11:54,426 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:11:54,427 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:11:54,427 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:11:54,427 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:11:54,427 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:11:54,428 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:11:54,428 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:11:54,428 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:11:54,428 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:11:54,429 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:11:54,429 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:11:54,429 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:11:54,429 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:11:54,430 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:11:54,430 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:11:54,430 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:11:54,430 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:11:54,431 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:11:54,431 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:11:54,431 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:11:54,431 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:11:54,432 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:11:54,432 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:11:54,432 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:11:54,432 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:11:54,433 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:11:54,433 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:11:54,433 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:11:54,433 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:11:54,434 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:11:54,434 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:11:54,434 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:11:54,434 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:11:54,437 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:11:54,437 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:11:54,437 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:11:54,438 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:11:54,444 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:11:54,444 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:11:54,445 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:11:54,445 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:11:54,448 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:11:54,448 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:11:54,448 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:11:54,449 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:11:54,451 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2020-12-22 11:11:54,472 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-12-22 11:11:54,497 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-22 11:11:54,498 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-22 11:11:54,498 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-22 11:11:54,498 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-22 11:11:54,498 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-22 11:11:54,498 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-22 11:11:54,498 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-22 11:11:54,498 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-22 11:11:54,512 INFO L120 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2020-12-22 11:11:54,515 INFO L135 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 83 places, 75 transitions, 165 flow [2020-12-22 11:11:54,518 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 83 places, 75 transitions, 165 flow [2020-12-22 11:11:54,521 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 83 places, 75 transitions, 165 flow [2020-12-22 11:11:54,571 INFO L129 PetriNetUnfolder]: 2/72 cut-off events. [2020-12-22 11:11:54,571 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-12-22 11:11:54,576 INFO L84 FinitePrefix]: Finished finitePrefix Result has 82 conditions, 72 events. 2/72 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 54 event pairs, 0 based on Foata normal form. 0/69 useless extension candidates. Maximal degree in co-relation 56. Up to 2 conditions per place. [2020-12-22 11:11:54,580 INFO L116 LiptonReduction]: Number of co-enabled transitions 1296 [2020-12-22 11:11:57,531 WARN L197 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 56 [2020-12-22 11:11:57,730 WARN L197 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 56 [2020-12-22 11:11:58,218 WARN L197 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 50 [2020-12-22 11:11:58,686 WARN L197 SmtUtils]: Spent 246.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 76 [2020-12-22 11:11:58,790 WARN L197 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 72 [2020-12-22 11:11:59,062 WARN L197 SmtUtils]: Spent 269.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 76 [2020-12-22 11:11:59,179 WARN L197 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 72 [2020-12-22 11:11:59,235 INFO L131 LiptonReduction]: Checked pairs total: 2371 [2020-12-22 11:11:59,236 INFO L133 LiptonReduction]: Total number of compositions: 63 [2020-12-22 11:11:59,243 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 31 places, 21 transitions, 57 flow [2020-12-22 11:11:59,275 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 298 states. [2020-12-22 11:11:59,277 INFO L276 IsEmpty]: Start isEmpty. Operand 298 states. [2020-12-22 11:11:59,284 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-12-22 11:11:59,285 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 11:11:59,286 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 11:11:59,286 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 11:11:59,293 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 11:11:59,294 INFO L82 PathProgramCache]: Analyzing trace with hash 1684989787, now seen corresponding path program 1 times [2020-12-22 11:11:59,305 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 11:11:59,306 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1439247951] [2020-12-22 11:11:59,306 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 11:11:59,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 11:11:59,638 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 11:11:59,638 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1439247951] [2020-12-22 11:11:59,642 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 11:11:59,642 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-12-22 11:11:59,643 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [628135682] [2020-12-22 11:11:59,650 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 11:11:59,650 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 11:11:59,675 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 11:11:59,678 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 11:11:59,681 INFO L87 Difference]: Start difference. First operand 298 states. Second operand 3 states. [2020-12-22 11:11:59,777 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 11:11:59,778 INFO L93 Difference]: Finished difference Result 282 states and 808 transitions. [2020-12-22 11:11:59,779 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 11:11:59,781 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2020-12-22 11:11:59,783 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 11:11:59,809 INFO L225 Difference]: With dead ends: 282 [2020-12-22 11:11:59,810 INFO L226 Difference]: Without dead ends: 218 [2020-12-22 11:11:59,812 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 11:11:59,846 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 218 states. [2020-12-22 11:11:59,918 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 218 to 218. [2020-12-22 11:11:59,919 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 218 states. [2020-12-22 11:11:59,926 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 218 states to 218 states and 600 transitions. [2020-12-22 11:11:59,927 INFO L78 Accepts]: Start accepts. Automaton has 218 states and 600 transitions. Word has length 8 [2020-12-22 11:11:59,928 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 11:11:59,929 INFO L481 AbstractCegarLoop]: Abstraction has 218 states and 600 transitions. [2020-12-22 11:11:59,929 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 11:11:59,929 INFO L276 IsEmpty]: Start isEmpty. Operand 218 states and 600 transitions. [2020-12-22 11:11:59,931 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-12-22 11:11:59,932 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 11:11:59,932 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 11:11:59,932 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-22 11:11:59,932 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 11:11:59,937 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 11:11:59,937 INFO L82 PathProgramCache]: Analyzing trace with hash 695075092, now seen corresponding path program 1 times [2020-12-22 11:11:59,938 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 11:11:59,939 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1279262689] [2020-12-22 11:11:59,939 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 11:12:00,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 11:12:00,090 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 11:12:00,091 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1279262689] [2020-12-22 11:12:00,091 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 11:12:00,091 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-22 11:12:00,091 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1822330858] [2020-12-22 11:12:00,093 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 11:12:00,095 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 11:12:00,097 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 11:12:00,098 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 11:12:00,098 INFO L87 Difference]: Start difference. First operand 218 states and 600 transitions. Second operand 3 states. [2020-12-22 11:12:00,133 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 11:12:00,133 INFO L93 Difference]: Finished difference Result 312 states and 816 transitions. [2020-12-22 11:12:00,134 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 11:12:00,134 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 9 [2020-12-22 11:12:00,134 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 11:12:00,138 INFO L225 Difference]: With dead ends: 312 [2020-12-22 11:12:00,138 INFO L226 Difference]: Without dead ends: 296 [2020-12-22 11:12:00,139 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 11:12:00,142 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 296 states. [2020-12-22 11:12:00,163 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 296 to 262. [2020-12-22 11:12:00,164 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 262 states. [2020-12-22 11:12:00,165 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 262 states to 262 states and 703 transitions. [2020-12-22 11:12:00,166 INFO L78 Accepts]: Start accepts. Automaton has 262 states and 703 transitions. Word has length 9 [2020-12-22 11:12:00,166 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 11:12:00,166 INFO L481 AbstractCegarLoop]: Abstraction has 262 states and 703 transitions. [2020-12-22 11:12:00,166 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 11:12:00,167 INFO L276 IsEmpty]: Start isEmpty. Operand 262 states and 703 transitions. [2020-12-22 11:12:00,168 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-12-22 11:12:00,168 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 11:12:00,169 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 11:12:00,169 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-12-22 11:12:00,169 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 11:12:00,169 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 11:12:00,170 INFO L82 PathProgramCache]: Analyzing trace with hash 72489286, now seen corresponding path program 1 times [2020-12-22 11:12:00,170 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 11:12:00,170 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [21450169] [2020-12-22 11:12:00,170 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 11:12:00,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 11:12:00,264 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 11:12:00,264 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [21450169] [2020-12-22 11:12:00,265 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 11:12:00,265 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-12-22 11:12:00,266 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [793357691] [2020-12-22 11:12:00,266 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 11:12:00,266 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 11:12:00,267 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 11:12:00,267 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 11:12:00,268 INFO L87 Difference]: Start difference. First operand 262 states and 703 transitions. Second operand 3 states. [2020-12-22 11:12:00,282 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 11:12:00,283 INFO L93 Difference]: Finished difference Result 254 states and 677 transitions. [2020-12-22 11:12:00,283 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 11:12:00,284 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10 [2020-12-22 11:12:00,284 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 11:12:00,289 INFO L225 Difference]: With dead ends: 254 [2020-12-22 11:12:00,290 INFO L226 Difference]: Without dead ends: 254 [2020-12-22 11:12:00,292 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 11:12:00,294 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 254 states. [2020-12-22 11:12:00,320 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 254 to 238. [2020-12-22 11:12:00,321 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 238 states. [2020-12-22 11:12:00,325 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 238 states to 238 states and 641 transitions. [2020-12-22 11:12:00,325 INFO L78 Accepts]: Start accepts. Automaton has 238 states and 641 transitions. Word has length 10 [2020-12-22 11:12:00,326 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 11:12:00,326 INFO L481 AbstractCegarLoop]: Abstraction has 238 states and 641 transitions. [2020-12-22 11:12:00,330 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 11:12:00,330 INFO L276 IsEmpty]: Start isEmpty. Operand 238 states and 641 transitions. [2020-12-22 11:12:00,332 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-12-22 11:12:00,332 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 11:12:00,332 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 11:12:00,332 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-12-22 11:12:00,333 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 11:12:00,333 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 11:12:00,333 INFO L82 PathProgramCache]: Analyzing trace with hash 72490526, now seen corresponding path program 1 times [2020-12-22 11:12:00,333 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 11:12:00,334 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [487669613] [2020-12-22 11:12:00,336 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 11:12:00,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 11:12:00,432 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 11:12:00,432 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [487669613] [2020-12-22 11:12:00,433 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 11:12:00,433 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-22 11:12:00,434 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [446470088] [2020-12-22 11:12:00,436 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 11:12:00,436 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 11:12:00,438 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 11:12:00,438 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 11:12:00,439 INFO L87 Difference]: Start difference. First operand 238 states and 641 transitions. Second operand 3 states. [2020-12-22 11:12:00,465 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 11:12:00,465 INFO L93 Difference]: Finished difference Result 226 states and 600 transitions. [2020-12-22 11:12:00,466 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 11:12:00,467 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10 [2020-12-22 11:12:00,467 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 11:12:00,470 INFO L225 Difference]: With dead ends: 226 [2020-12-22 11:12:00,471 INFO L226 Difference]: Without dead ends: 226 [2020-12-22 11:12:00,471 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 11:12:00,473 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 226 states. [2020-12-22 11:12:00,495 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 226 to 202. [2020-12-22 11:12:00,495 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 202 states. [2020-12-22 11:12:00,498 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 202 states to 202 states and 530 transitions. [2020-12-22 11:12:00,498 INFO L78 Accepts]: Start accepts. Automaton has 202 states and 530 transitions. Word has length 10 [2020-12-22 11:12:00,498 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 11:12:00,498 INFO L481 AbstractCegarLoop]: Abstraction has 202 states and 530 transitions. [2020-12-22 11:12:00,499 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 11:12:00,499 INFO L276 IsEmpty]: Start isEmpty. Operand 202 states and 530 transitions. [2020-12-22 11:12:00,505 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-12-22 11:12:00,506 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 11:12:00,506 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 11:12:00,506 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-12-22 11:12:00,506 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 11:12:00,507 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 11:12:00,510 INFO L82 PathProgramCache]: Analyzing trace with hash -2036231076, now seen corresponding path program 1 times [2020-12-22 11:12:00,510 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 11:12:00,511 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1673590724] [2020-12-22 11:12:00,511 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 11:12:00,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 11:12:00,599 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 11:12:00,600 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1673590724] [2020-12-22 11:12:00,600 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 11:12:00,600 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-22 11:12:00,600 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [778617469] [2020-12-22 11:12:00,601 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-22 11:12:00,601 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 11:12:00,601 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-22 11:12:00,602 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-22 11:12:00,602 INFO L87 Difference]: Start difference. First operand 202 states and 530 transitions. Second operand 4 states. [2020-12-22 11:12:00,645 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 11:12:00,645 INFO L93 Difference]: Finished difference Result 282 states and 728 transitions. [2020-12-22 11:12:00,646 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-22 11:12:00,646 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2020-12-22 11:12:00,646 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 11:12:00,648 INFO L225 Difference]: With dead ends: 282 [2020-12-22 11:12:00,648 INFO L226 Difference]: Without dead ends: 178 [2020-12-22 11:12:00,648 INFO L677 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 [2020-12-22 11:12:00,650 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 178 states. [2020-12-22 11:12:00,654 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 178 to 178. [2020-12-22 11:12:00,655 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 178 states. [2020-12-22 11:12:00,656 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 178 states to 178 states and 452 transitions. [2020-12-22 11:12:00,656 INFO L78 Accepts]: Start accepts. Automaton has 178 states and 452 transitions. Word has length 11 [2020-12-22 11:12:00,656 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 11:12:00,657 INFO L481 AbstractCegarLoop]: Abstraction has 178 states and 452 transitions. [2020-12-22 11:12:00,657 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-22 11:12:00,657 INFO L276 IsEmpty]: Start isEmpty. Operand 178 states and 452 transitions. [2020-12-22 11:12:00,657 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-12-22 11:12:00,658 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 11:12:00,658 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 11:12:00,658 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-12-22 11:12:00,658 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 11:12:00,659 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 11:12:00,659 INFO L82 PathProgramCache]: Analyzing trace with hash -2047800276, now seen corresponding path program 2 times [2020-12-22 11:12:00,659 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 11:12:00,659 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [917655080] [2020-12-22 11:12:00,659 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 11:12:00,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 11:12:00,747 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 11:12:00,748 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [917655080] [2020-12-22 11:12:00,748 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 11:12:00,748 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-22 11:12:00,748 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [106156241] [2020-12-22 11:12:00,749 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-22 11:12:00,749 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 11:12:00,750 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-22 11:12:00,750 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-22 11:12:00,750 INFO L87 Difference]: Start difference. First operand 178 states and 452 transitions. Second operand 4 states. [2020-12-22 11:12:00,796 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 11:12:00,796 INFO L93 Difference]: Finished difference Result 206 states and 481 transitions. [2020-12-22 11:12:00,797 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-22 11:12:00,798 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2020-12-22 11:12:00,798 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 11:12:00,799 INFO L225 Difference]: With dead ends: 206 [2020-12-22 11:12:00,800 INFO L226 Difference]: Without dead ends: 150 [2020-12-22 11:12:00,800 INFO L677 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 [2020-12-22 11:12:00,801 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 150 states. [2020-12-22 11:12:00,805 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 150 to 150. [2020-12-22 11:12:00,806 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 150 states. [2020-12-22 11:12:00,807 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 150 states to 150 states and 344 transitions. [2020-12-22 11:12:00,807 INFO L78 Accepts]: Start accepts. Automaton has 150 states and 344 transitions. Word has length 11 [2020-12-22 11:12:00,807 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 11:12:00,807 INFO L481 AbstractCegarLoop]: Abstraction has 150 states and 344 transitions. [2020-12-22 11:12:00,807 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-22 11:12:00,808 INFO L276 IsEmpty]: Start isEmpty. Operand 150 states and 344 transitions. [2020-12-22 11:12:00,808 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-12-22 11:12:00,808 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 11:12:00,808 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 11:12:00,809 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-12-22 11:12:00,809 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 11:12:00,809 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 11:12:00,809 INFO L82 PathProgramCache]: Analyzing trace with hash 1362454825, now seen corresponding path program 1 times [2020-12-22 11:12:00,810 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 11:12:00,810 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1096093932] [2020-12-22 11:12:00,810 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 11:12:00,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 11:12:00,902 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 11:12:00,903 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1096093932] [2020-12-22 11:12:00,903 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 11:12:00,903 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 11:12:00,903 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2124659968] [2020-12-22 11:12:00,904 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-22 11:12:00,904 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 11:12:00,905 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-22 11:12:00,905 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-12-22 11:12:00,905 INFO L87 Difference]: Start difference. First operand 150 states and 344 transitions. Second operand 5 states. [2020-12-22 11:12:00,976 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 11:12:00,977 INFO L93 Difference]: Finished difference Result 149 states and 319 transitions. [2020-12-22 11:12:00,978 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-22 11:12:00,978 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 12 [2020-12-22 11:12:00,978 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 11:12:00,979 INFO L225 Difference]: With dead ends: 149 [2020-12-22 11:12:00,979 INFO L226 Difference]: Without dead ends: 115 [2020-12-22 11:12:00,980 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-12-22 11:12:00,981 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115 states. [2020-12-22 11:12:00,984 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 115 to 115. [2020-12-22 11:12:00,984 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 115 states. [2020-12-22 11:12:00,985 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115 states to 115 states and 242 transitions. [2020-12-22 11:12:00,985 INFO L78 Accepts]: Start accepts. Automaton has 115 states and 242 transitions. Word has length 12 [2020-12-22 11:12:00,986 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 11:12:00,986 INFO L481 AbstractCegarLoop]: Abstraction has 115 states and 242 transitions. [2020-12-22 11:12:00,986 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-22 11:12:00,986 INFO L276 IsEmpty]: Start isEmpty. Operand 115 states and 242 transitions. [2020-12-22 11:12:00,987 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-12-22 11:12:00,987 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 11:12:00,987 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 11:12:00,987 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-12-22 11:12:00,987 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 11:12:00,988 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 11:12:00,988 INFO L82 PathProgramCache]: Analyzing trace with hash -646579048, now seen corresponding path program 1 times [2020-12-22 11:12:00,988 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 11:12:00,988 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [987976736] [2020-12-22 11:12:00,989 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 11:12:01,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 11:12:01,085 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 11:12:01,086 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [987976736] [2020-12-22 11:12:01,086 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 11:12:01,086 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-22 11:12:01,087 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1973877882] [2020-12-22 11:12:01,091 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-22 11:12:01,091 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 11:12:01,092 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-22 11:12:01,093 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-12-22 11:12:01,094 INFO L87 Difference]: Start difference. First operand 115 states and 242 transitions. Second operand 6 states. [2020-12-22 11:12:01,174 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 11:12:01,175 INFO L93 Difference]: Finished difference Result 110 states and 230 transitions. [2020-12-22 11:12:01,175 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-12-22 11:12:01,175 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 14 [2020-12-22 11:12:01,176 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 11:12:01,176 INFO L225 Difference]: With dead ends: 110 [2020-12-22 11:12:01,176 INFO L226 Difference]: Without dead ends: 92 [2020-12-22 11:12:01,182 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2020-12-22 11:12:01,183 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 92 states. [2020-12-22 11:12:01,185 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 92 to 88. [2020-12-22 11:12:01,185 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 88 states. [2020-12-22 11:12:01,186 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 88 states and 185 transitions. [2020-12-22 11:12:01,186 INFO L78 Accepts]: Start accepts. Automaton has 88 states and 185 transitions. Word has length 14 [2020-12-22 11:12:01,186 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 11:12:01,186 INFO L481 AbstractCegarLoop]: Abstraction has 88 states and 185 transitions. [2020-12-22 11:12:01,186 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-12-22 11:12:01,186 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 185 transitions. [2020-12-22 11:12:01,187 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-12-22 11:12:01,187 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 11:12:01,187 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 11:12:01,187 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-12-22 11:12:01,188 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 11:12:01,188 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 11:12:01,188 INFO L82 PathProgramCache]: Analyzing trace with hash 390859497, now seen corresponding path program 1 times [2020-12-22 11:12:01,188 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 11:12:01,189 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1944489718] [2020-12-22 11:12:01,189 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 11:12:01,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 11:12:01,281 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 11:12:01,282 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1944489718] [2020-12-22 11:12:01,282 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 11:12:01,282 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 11:12:01,282 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1554199740] [2020-12-22 11:12:01,283 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-22 11:12:01,283 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 11:12:01,284 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-22 11:12:01,284 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-22 11:12:01,284 INFO L87 Difference]: Start difference. First operand 88 states and 185 transitions. Second operand 4 states. [2020-12-22 11:12:01,319 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 11:12:01,319 INFO L93 Difference]: Finished difference Result 117 states and 238 transitions. [2020-12-22 11:12:01,320 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-22 11:12:01,320 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 17 [2020-12-22 11:12:01,320 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 11:12:01,321 INFO L225 Difference]: With dead ends: 117 [2020-12-22 11:12:01,321 INFO L226 Difference]: Without dead ends: 60 [2020-12-22 11:12:01,321 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-12-22 11:12:01,322 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60 states. [2020-12-22 11:12:01,323 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60 to 56. [2020-12-22 11:12:01,323 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 56 states. [2020-12-22 11:12:01,324 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 101 transitions. [2020-12-22 11:12:01,324 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 101 transitions. Word has length 17 [2020-12-22 11:12:01,324 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 11:12:01,324 INFO L481 AbstractCegarLoop]: Abstraction has 56 states and 101 transitions. [2020-12-22 11:12:01,324 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-22 11:12:01,325 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 101 transitions. [2020-12-22 11:12:01,325 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-12-22 11:12:01,325 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 11:12:01,325 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 11:12:01,326 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-12-22 11:12:01,326 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 11:12:01,326 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 11:12:01,326 INFO L82 PathProgramCache]: Analyzing trace with hash 321753769, now seen corresponding path program 2 times [2020-12-22 11:12:01,326 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 11:12:01,327 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1768577831] [2020-12-22 11:12:01,327 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 11:12:01,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 11:12:01,366 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 11:12:01,366 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1768577831] [2020-12-22 11:12:01,366 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 11:12:01,367 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 11:12:01,367 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1201313954] [2020-12-22 11:12:01,367 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-22 11:12:01,367 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 11:12:01,368 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-22 11:12:01,368 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-22 11:12:01,368 INFO L87 Difference]: Start difference. First operand 56 states and 101 transitions. Second operand 4 states. [2020-12-22 11:12:01,383 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 11:12:01,383 INFO L93 Difference]: Finished difference Result 71 states and 125 transitions. [2020-12-22 11:12:01,384 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-22 11:12:01,384 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 17 [2020-12-22 11:12:01,384 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 11:12:01,385 INFO L225 Difference]: With dead ends: 71 [2020-12-22 11:12:01,385 INFO L226 Difference]: Without dead ends: 29 [2020-12-22 11:12:01,385 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-12-22 11:12:01,386 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2020-12-22 11:12:01,387 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 29. [2020-12-22 11:12:01,387 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29 states. [2020-12-22 11:12:01,387 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 41 transitions. [2020-12-22 11:12:01,387 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 41 transitions. Word has length 17 [2020-12-22 11:12:01,387 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 11:12:01,388 INFO L481 AbstractCegarLoop]: Abstraction has 29 states and 41 transitions. [2020-12-22 11:12:01,388 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-22 11:12:01,388 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 41 transitions. [2020-12-22 11:12:01,388 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-12-22 11:12:01,388 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 11:12:01,388 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 11:12:01,389 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-12-22 11:12:01,389 INFO L429 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 11:12:01,389 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 11:12:01,389 INFO L82 PathProgramCache]: Analyzing trace with hash 1988858199, now seen corresponding path program 3 times [2020-12-22 11:12:01,390 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 11:12:01,390 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1375593854] [2020-12-22 11:12:01,390 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 11:12:01,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 11:12:01,425 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 11:12:01,425 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1375593854] [2020-12-22 11:12:01,425 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 11:12:01,425 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 11:12:01,426 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1790381478] [2020-12-22 11:12:01,426 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-22 11:12:01,426 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 11:12:01,427 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-22 11:12:01,427 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-22 11:12:01,427 INFO L87 Difference]: Start difference. First operand 29 states and 41 transitions. Second operand 4 states. [2020-12-22 11:12:01,441 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 11:12:01,441 INFO L93 Difference]: Finished difference Result 28 states and 40 transitions. [2020-12-22 11:12:01,442 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-22 11:12:01,442 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 17 [2020-12-22 11:12:01,442 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 11:12:01,442 INFO L225 Difference]: With dead ends: 28 [2020-12-22 11:12:01,443 INFO L226 Difference]: Without dead ends: 0 [2020-12-22 11:12:01,443 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-12-22 11:12:01,443 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-12-22 11:12:01,443 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-12-22 11:12:01,443 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-12-22 11:12:01,444 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-12-22 11:12:01,444 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 17 [2020-12-22 11:12:01,444 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 11:12:01,444 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-12-22 11:12:01,444 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-22 11:12:01,444 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-12-22 11:12:01,444 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-12-22 11:12:01,445 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-12-22 11:12:01,448 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.12 11:12:01 BasicIcfg [2020-12-22 11:12:01,449 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-12-22 11:12:01,449 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-22 11:12:01,449 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-22 11:12:01,450 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-22 11:12:01,450 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 11:11:54" (3/4) ... [2020-12-22 11:12:01,454 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-12-22 11:12:01,461 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2020-12-22 11:12:01,461 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2020-12-22 11:12:01,462 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P2 [2020-12-22 11:12:01,467 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 14 nodes and edges [2020-12-22 11:12:01,467 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2020-12-22 11:12:01,467 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-12-22 11:12:01,468 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-12-22 11:12:01,518 INFO L141 WitnessManager]: Wrote witness to /storage/repos/svcomp/c/pthread-wmm/safe025_tso.oepc.i-witness.graphml [2020-12-22 11:12:01,522 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-22 11:12:01,524 INFO L168 Benchmark]: Toolchain (without parser) took 8680.69 ms. Allocated memory was 151.0 MB in the beginning and 218.1 MB in the end (delta: 67.1 MB). Free memory was 124.9 MB in the beginning and 132.5 MB in the end (delta: -7.6 MB). Peak memory consumption was 59.9 MB. Max. memory is 8.0 GB. [2020-12-22 11:12:01,524 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 151.0 MB. Free memory is still 122.7 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-12-22 11:12:01,525 INFO L168 Benchmark]: CACSL2BoogieTranslator took 704.61 ms. Allocated memory is still 151.0 MB. Free memory was 124.7 MB in the beginning and 131.1 MB in the end (delta: -6.4 MB). Peak memory consumption was 33.0 MB. Max. memory is 8.0 GB. [2020-12-22 11:12:01,526 INFO L168 Benchmark]: Boogie Procedure Inliner took 93.94 ms. Allocated memory is still 151.0 MB. Free memory was 131.1 MB in the beginning and 129.5 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2020-12-22 11:12:01,526 INFO L168 Benchmark]: Boogie Preprocessor took 61.31 ms. Allocated memory is still 151.0 MB. Free memory was 129.5 MB in the beginning and 128.0 MB in the end (delta: 1.5 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2020-12-22 11:12:01,529 INFO L168 Benchmark]: RCFGBuilder took 647.05 ms. Allocated memory is still 151.0 MB. Free memory was 128.0 MB in the beginning and 105.4 MB in the end (delta: 22.6 MB). Peak memory consumption was 23.1 MB. Max. memory is 8.0 GB. [2020-12-22 11:12:01,530 INFO L168 Benchmark]: TraceAbstraction took 7089.90 ms. Allocated memory was 151.0 MB in the beginning and 218.1 MB in the end (delta: 67.1 MB). Free memory was 105.4 MB in the beginning and 135.1 MB in the end (delta: -29.7 MB). Peak memory consumption was 37.4 MB. Max. memory is 8.0 GB. [2020-12-22 11:12:01,531 INFO L168 Benchmark]: Witness Printer took 72.95 ms. Allocated memory is still 218.1 MB. Free memory was 135.1 MB in the beginning and 132.5 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2020-12-22 11:12:01,539 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 151.0 MB. Free memory is still 122.7 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 704.61 ms. Allocated memory is still 151.0 MB. Free memory was 124.7 MB in the beginning and 131.1 MB in the end (delta: -6.4 MB). Peak memory consumption was 33.0 MB. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 93.94 ms. Allocated memory is still 151.0 MB. Free memory was 131.1 MB in the beginning and 129.5 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 61.31 ms. Allocated memory is still 151.0 MB. Free memory was 129.5 MB in the beginning and 128.0 MB in the end (delta: 1.5 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 647.05 ms. Allocated memory is still 151.0 MB. Free memory was 128.0 MB in the beginning and 105.4 MB in the end (delta: 22.6 MB). Peak memory consumption was 23.1 MB. Max. memory is 8.0 GB. * TraceAbstraction took 7089.90 ms. Allocated memory was 151.0 MB in the beginning and 218.1 MB in the end (delta: 67.1 MB). Free memory was 105.4 MB in the beginning and 135.1 MB in the end (delta: -29.7 MB). Peak memory consumption was 37.4 MB. Max. memory is 8.0 GB. * Witness Printer took 72.95 ms. Allocated memory is still 218.1 MB. Free memory was 135.1 MB in the beginning and 132.5 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 831 VarBasedMoverChecksPositive, 41 VarBasedMoverChecksNegative, 10 SemBasedMoverChecksPositive, 31 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.5s, 64 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 4.7s, 83 PlacesBefore, 31 PlacesAfterwards, 75 TransitionsBefore, 21 TransitionsAfterwards, 1296 CoEnabledTransitionPairs, 5 FixpointIterations, 18 TrivialSequentialCompositions, 37 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 6 ConcurrentYvCompositions, 2 ChoiceCompositions, 63 TotalNumberOfCompositions, 2371 MoverChecksTotal - PositiveResult [Line: 18]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 74 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 6.9s, OverallIterations: 11, TraceHistogramMax: 1, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 4.7s, HoareTripleCheckerStatistics: 194 SDtfs, 225 SDslu, 183 SDs, 0 SdLazy, 101 SolverSat, 42 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 37 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=298occurred 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: 0.2s AutomataMinimizationTime, 11 MinimizatonAttempts, 82 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 136 NumberOfCodeBlocks, 136 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 125 ConstructedInterpolants, 0 QuantifiedInterpolants, 4844 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 11 InterpolantComputations, 11 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...