/usr/bin/java -Xmx16000000000 -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.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-11af1e5 [2020-10-11 15:12:42,227 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-11 15:12:42,230 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-11 15:12:42,258 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-11 15:12:42,259 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-11 15:12:42,267 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-11 15:12:42,268 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-11 15:12:42,272 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-11 15:12:42,275 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-11 15:12:42,278 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-11 15:12:42,279 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-11 15:12:42,281 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-11 15:12:42,281 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-11 15:12:42,284 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-11 15:12:42,287 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-11 15:12:42,288 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-11 15:12:42,290 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-11 15:12:42,291 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-11 15:12:42,293 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-11 15:12:42,301 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-11 15:12:42,303 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-11 15:12:42,304 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-11 15:12:42,305 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-11 15:12:42,306 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-11 15:12:42,317 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-11 15:12:42,317 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-11 15:12:42,317 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-11 15:12:42,318 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-11 15:12:42,319 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-11 15:12:42,323 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-11 15:12:42,323 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-11 15:12:42,323 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-11 15:12:42,324 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-11 15:12:42,325 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-11 15:12:42,326 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-11 15:12:42,326 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-11 15:12:42,328 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-11 15:12:42,328 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-11 15:12:42,328 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-11 15:12:42,329 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-11 15:12:42,330 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-11 15:12:42,331 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 [2020-10-11 15:12:42,375 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-11 15:12:42,376 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-11 15:12:42,377 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-11 15:12:42,378 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-11 15:12:42,378 INFO L138 SettingsManager]: * Use SBE=true [2020-10-11 15:12:42,378 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-11 15:12:42,378 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-11 15:12:42,379 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-11 15:12:42,379 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-11 15:12:42,379 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-11 15:12:42,380 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-11 15:12:42,380 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-11 15:12:42,380 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-11 15:12:42,381 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-11 15:12:42,381 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-11 15:12:42,381 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-11 15:12:42,381 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-11 15:12:42,382 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-11 15:12:42,382 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-11 15:12:42,382 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-11 15:12:42,382 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-11 15:12:42,382 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-11 15:12:42,383 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-11 15:12:42,383 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-11 15:12:42,383 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-11 15:12:42,383 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-11 15:12:42,383 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-11 15:12:42,383 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-11 15:12:42,384 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-11 15:12:42,384 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-10-11 15:12:42,723 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-11 15:12:42,739 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-11 15:12:42,742 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-11 15:12:42,743 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-11 15:12:42,744 INFO L275 PluginConnector]: CDTParser initialized [2020-10-11 15:12:42,744 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/thin002_tso.oepc.i [2020-10-11 15:12:42,813 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b4b47c510/179ff9a531ee467a843bbb64d7de55f5/FLAG41591ddab [2020-10-11 15:12:43,375 INFO L306 CDTParser]: Found 1 translation units. [2020-10-11 15:12:43,376 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/thin002_tso.oepc.i [2020-10-11 15:12:43,394 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b4b47c510/179ff9a531ee467a843bbb64d7de55f5/FLAG41591ddab [2020-10-11 15:12:43,700 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b4b47c510/179ff9a531ee467a843bbb64d7de55f5 [2020-10-11 15:12:43,707 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-11 15:12:43,709 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-10-11 15:12:43,710 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-11 15:12:43,710 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-11 15:12:43,713 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-11 15:12:43,714 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 03:12:43" (1/1) ... [2020-10-11 15:12:43,717 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@333fce82 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:12:43, skipping insertion in model container [2020-10-11 15:12:43,717 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 03:12:43" (1/1) ... [2020-10-11 15:12:43,725 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-11 15:12:43,788 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-11 15:12:44,226 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-11 15:12:44,239 INFO L203 MainTranslator]: Completed pre-run [2020-10-11 15:12:44,291 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-11 15:12:44,377 INFO L208 MainTranslator]: Completed translation [2020-10-11 15:12:44,379 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:12:44 WrapperNode [2020-10-11 15:12:44,379 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-11 15:12:44,380 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-11 15:12:44,381 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-11 15:12:44,381 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-11 15:12:44,389 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:12:44" (1/1) ... [2020-10-11 15:12:44,411 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:12:44" (1/1) ... [2020-10-11 15:12:44,432 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-11 15:12:44,433 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-11 15:12:44,433 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-11 15:12:44,433 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-11 15:12:44,443 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:12:44" (1/1) ... [2020-10-11 15:12:44,443 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:12:44" (1/1) ... [2020-10-11 15:12:44,446 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:12:44" (1/1) ... [2020-10-11 15:12:44,446 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:12:44" (1/1) ... [2020-10-11 15:12:44,453 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:12:44" (1/1) ... [2020-10-11 15:12:44,455 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:12:44" (1/1) ... [2020-10-11 15:12:44,462 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:12:44" (1/1) ... [2020-10-11 15:12:44,465 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-11 15:12:44,466 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-11 15:12:44,466 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-11 15:12:44,466 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-11 15:12:44,467 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:12:44" (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 [2020-10-11 15:12:44,525 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-11 15:12:44,525 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-10-11 15:12:44,525 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-11 15:12:44,526 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-11 15:12:44,526 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-10-11 15:12:44,526 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-10-11 15:12:44,526 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-10-11 15:12:44,526 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-10-11 15:12:44,526 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-10-11 15:12:44,527 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-10-11 15:12:44,527 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2020-10-11 15:12:44,527 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2020-10-11 15:12:44,527 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-10-11 15:12:44,527 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-11 15:12:44,527 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-11 15:12:44,529 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-10-11 15:12:44,890 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-11 15:12:44,891 INFO L298 CfgBuilder]: Removed 8 assume(true) statements. [2020-10-11 15:12:44,894 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 03:12:44 BoogieIcfgContainer [2020-10-11 15:12:44,894 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-11 15:12:44,897 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-11 15:12:44,897 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-11 15:12:44,902 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-11 15:12:44,903 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.10 03:12:43" (1/3) ... [2020-10-11 15:12:44,904 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4812c272 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 03:12:44, skipping insertion in model container [2020-10-11 15:12:44,904 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:12:44" (2/3) ... [2020-10-11 15:12:44,905 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4812c272 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 03:12:44, skipping insertion in model container [2020-10-11 15:12:44,905 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 03:12:44" (3/3) ... [2020-10-11 15:12:44,907 INFO L111 eAbstractionObserver]: Analyzing ICFG thin002_tso.oepc.i [2020-10-11 15:12:44,919 WARN L153 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-10-11 15:12:44,919 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-11 15:12:44,926 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-11 15:12:44,926 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-10-11 15:12:44,958 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:12:44,959 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:12:44,959 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:12:44,959 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:12:44,960 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:12:44,960 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:12:44,961 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:12:44,961 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:12:44,961 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:12:44,961 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:12:44,962 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:12:44,962 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:12:44,962 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:12:44,963 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:12:44,963 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:12:44,963 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:12:44,964 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:12:44,964 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:12:44,964 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:12:44,965 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:12:44,965 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:12:44,965 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:12:44,965 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:12:44,966 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:12:44,970 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:12:44,970 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:12:44,970 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:12:44,970 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:12:44,976 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:12:44,976 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:12:44,976 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:12:44,977 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:12:44,985 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:12:44,985 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:12:44,985 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:12:44,985 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:12:44,999 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:12:44,999 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:12:44,999 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:12:44,999 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:12:45,016 INFO L253 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2020-10-11 15:12:45,034 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-11 15:12:45,034 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-11 15:12:45,035 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-11 15:12:45,035 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-11 15:12:45,035 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-11 15:12:45,035 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-11 15:12:45,035 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-11 15:12:45,035 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-11 15:12:45,048 INFO L129 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2020-10-11 15:12:45,050 INFO L144 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 97 places, 86 transitions, 192 flow [2020-10-11 15:12:45,052 INFO L111 LiptonReduction]: Starting Lipton reduction on Petri net that has 97 places, 86 transitions, 192 flow [2020-10-11 15:12:45,054 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 97 places, 86 transitions, 192 flow [2020-10-11 15:12:45,106 INFO L129 PetriNetUnfolder]: 2/82 cut-off events. [2020-10-11 15:12:45,107 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-10-11 15:12:45,115 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. [2020-10-11 15:12:45,119 INFO L117 LiptonReduction]: Number of co-enabled transitions 2016 [2020-10-11 15:12:46,727 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 55 [2020-10-11 15:12:46,802 INFO L132 LiptonReduction]: Checked pairs total: 4737 [2020-10-11 15:12:46,802 INFO L134 LiptonReduction]: Total number of compositions: 68 [2020-10-11 15:12:46,821 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 41 places, 29 transitions, 78 flow [2020-10-11 15:12:46,920 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 1450 states. [2020-10-11 15:12:46,922 INFO L276 IsEmpty]: Start isEmpty. Operand 1450 states. [2020-10-11 15:12:46,934 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-10-11 15:12:46,934 INFO L413 BasicCegarLoop]: Found error trace [2020-10-11 15:12:46,935 INFO L421 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-11 15:12:46,935 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-11 15:12:46,941 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-11 15:12:46,942 INFO L82 PathProgramCache]: Analyzing trace with hash 546901279, now seen corresponding path program 1 times [2020-10-11 15:12:46,952 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-11 15:12:46,952 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1408672955] [2020-10-11 15:12:46,953 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-11 15:12:47,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-11 15:12:47,136 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-11 15:12:47,137 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1408672955] [2020-10-11 15:12:47,138 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-11 15:12:47,139 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-11 15:12:47,139 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [962438744] [2020-10-11 15:12:47,144 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-10-11 15:12:47,145 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-11 15:12:47,162 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-10-11 15:12:47,163 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-10-11 15:12:47,166 INFO L87 Difference]: Start difference. First operand 1450 states. Second operand 2 states. [2020-10-11 15:12:47,239 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-11 15:12:47,240 INFO L93 Difference]: Finished difference Result 1450 states and 5376 transitions. [2020-10-11 15:12:47,240 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-10-11 15:12:47,242 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 10 [2020-10-11 15:12:47,243 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-11 15:12:47,289 INFO L225 Difference]: With dead ends: 1450 [2020-10-11 15:12:47,289 INFO L226 Difference]: Without dead ends: 1194 [2020-10-11 15:12:47,291 INFO L673 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 [2020-10-11 15:12:47,332 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1194 states. [2020-10-11 15:12:47,430 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1194 to 1194. [2020-10-11 15:12:47,431 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1194 states. [2020-10-11 15:12:47,439 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1194 states to 1194 states and 4352 transitions. [2020-10-11 15:12:47,440 INFO L78 Accepts]: Start accepts. Automaton has 1194 states and 4352 transitions. Word has length 10 [2020-10-11 15:12:47,441 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-11 15:12:47,442 INFO L481 AbstractCegarLoop]: Abstraction has 1194 states and 4352 transitions. [2020-10-11 15:12:47,442 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-10-11 15:12:47,442 INFO L276 IsEmpty]: Start isEmpty. Operand 1194 states and 4352 transitions. [2020-10-11 15:12:47,445 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-10-11 15:12:47,445 INFO L413 BasicCegarLoop]: Found error trace [2020-10-11 15:12:47,445 INFO L421 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-11 15:12:47,445 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-11 15:12:47,446 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-11 15:12:47,446 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-11 15:12:47,446 INFO L82 PathProgramCache]: Analyzing trace with hash -225951647, now seen corresponding path program 1 times [2020-10-11 15:12:47,446 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-11 15:12:47,447 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1248037011] [2020-10-11 15:12:47,447 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-11 15:12:47,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-11 15:12:47,591 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-11 15:12:47,591 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1248037011] [2020-10-11 15:12:47,591 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-11 15:12:47,592 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-11 15:12:47,592 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [631246353] [2020-10-11 15:12:47,593 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-11 15:12:47,594 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-11 15:12:47,594 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-11 15:12:47,594 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-11 15:12:47,594 INFO L87 Difference]: Start difference. First operand 1194 states and 4352 transitions. Second operand 4 states. [2020-10-11 15:12:47,632 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-11 15:12:47,632 INFO L93 Difference]: Finished difference Result 1322 states and 4640 transitions. [2020-10-11 15:12:47,633 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-11 15:12:47,633 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2020-10-11 15:12:47,633 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-11 15:12:47,643 INFO L225 Difference]: With dead ends: 1322 [2020-10-11 15:12:47,644 INFO L226 Difference]: Without dead ends: 1066 [2020-10-11 15:12:47,645 INFO L673 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 [2020-10-11 15:12:47,651 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1066 states. [2020-10-11 15:12:47,680 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1066 to 1066. [2020-10-11 15:12:47,680 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1066 states. [2020-10-11 15:12:47,686 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1066 states to 1066 states and 3808 transitions. [2020-10-11 15:12:47,687 INFO L78 Accepts]: Start accepts. Automaton has 1066 states and 3808 transitions. Word has length 11 [2020-10-11 15:12:47,687 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-11 15:12:47,687 INFO L481 AbstractCegarLoop]: Abstraction has 1066 states and 3808 transitions. [2020-10-11 15:12:47,687 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-11 15:12:47,687 INFO L276 IsEmpty]: Start isEmpty. Operand 1066 states and 3808 transitions. [2020-10-11 15:12:47,690 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-10-11 15:12:47,690 INFO L413 BasicCegarLoop]: Found error trace [2020-10-11 15:12:47,690 INFO L421 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-11 15:12:47,691 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-11 15:12:47,691 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-11 15:12:47,691 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-11 15:12:47,691 INFO L82 PathProgramCache]: Analyzing trace with hash -426404145, now seen corresponding path program 1 times [2020-10-11 15:12:47,691 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-11 15:12:47,692 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1862906518] [2020-10-11 15:12:47,692 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-11 15:12:47,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-11 15:12:47,759 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-11 15:12:47,760 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1862906518] [2020-10-11 15:12:47,760 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-11 15:12:47,760 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-11 15:12:47,760 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [30923626] [2020-10-11 15:12:47,761 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-11 15:12:47,761 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-11 15:12:47,761 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-11 15:12:47,761 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-11 15:12:47,762 INFO L87 Difference]: Start difference. First operand 1066 states and 3808 transitions. Second operand 4 states. [2020-10-11 15:12:47,791 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-11 15:12:47,791 INFO L93 Difference]: Finished difference Result 1162 states and 4016 transitions. [2020-10-11 15:12:47,791 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-11 15:12:47,792 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 12 [2020-10-11 15:12:47,792 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-11 15:12:47,799 INFO L225 Difference]: With dead ends: 1162 [2020-10-11 15:12:47,800 INFO L226 Difference]: Without dead ends: 970 [2020-10-11 15:12:47,800 INFO L673 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 [2020-10-11 15:12:47,806 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 970 states. [2020-10-11 15:12:47,830 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 970 to 970. [2020-10-11 15:12:47,830 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 970 states. [2020-10-11 15:12:47,835 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 970 states to 970 states and 3408 transitions. [2020-10-11 15:12:47,836 INFO L78 Accepts]: Start accepts. Automaton has 970 states and 3408 transitions. Word has length 12 [2020-10-11 15:12:47,836 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-11 15:12:47,836 INFO L481 AbstractCegarLoop]: Abstraction has 970 states and 3408 transitions. [2020-10-11 15:12:47,836 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-11 15:12:47,837 INFO L276 IsEmpty]: Start isEmpty. Operand 970 states and 3408 transitions. [2020-10-11 15:12:47,839 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-10-11 15:12:47,839 INFO L413 BasicCegarLoop]: Found error trace [2020-10-11 15:12:47,839 INFO L421 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-11 15:12:47,839 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-11 15:12:47,840 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-11 15:12:47,840 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-11 15:12:47,840 INFO L82 PathProgramCache]: Analyzing trace with hash 847962781, now seen corresponding path program 1 times [2020-10-11 15:12:47,840 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-11 15:12:47,841 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1897340267] [2020-10-11 15:12:47,841 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-11 15:12:47,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-11 15:12:47,901 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-11 15:12:47,902 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1897340267] [2020-10-11 15:12:47,902 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-11 15:12:47,902 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-11 15:12:47,903 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1651672943] [2020-10-11 15:12:47,903 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-11 15:12:47,903 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-11 15:12:47,904 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-11 15:12:47,904 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-11 15:12:47,904 INFO L87 Difference]: Start difference. First operand 970 states and 3408 transitions. Second operand 4 states. [2020-10-11 15:12:47,930 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-11 15:12:47,931 INFO L93 Difference]: Finished difference Result 1042 states and 3558 transitions. [2020-10-11 15:12:47,931 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-11 15:12:47,931 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 13 [2020-10-11 15:12:47,931 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-11 15:12:47,938 INFO L225 Difference]: With dead ends: 1042 [2020-10-11 15:12:47,939 INFO L226 Difference]: Without dead ends: 898 [2020-10-11 15:12:47,939 INFO L673 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 [2020-10-11 15:12:47,944 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 898 states. [2020-10-11 15:12:47,965 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 898 to 898. [2020-10-11 15:12:47,965 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 898 states. [2020-10-11 15:12:47,970 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 898 states to 898 states and 3114 transitions. [2020-10-11 15:12:47,971 INFO L78 Accepts]: Start accepts. Automaton has 898 states and 3114 transitions. Word has length 13 [2020-10-11 15:12:47,971 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-11 15:12:47,971 INFO L481 AbstractCegarLoop]: Abstraction has 898 states and 3114 transitions. [2020-10-11 15:12:47,971 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-11 15:12:47,971 INFO L276 IsEmpty]: Start isEmpty. Operand 898 states and 3114 transitions. [2020-10-11 15:12:47,973 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-10-11 15:12:47,973 INFO L413 BasicCegarLoop]: Found error trace [2020-10-11 15:12:47,973 INFO L421 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-11 15:12:47,974 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-11 15:12:47,974 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-11 15:12:47,974 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-11 15:12:47,974 INFO L82 PathProgramCache]: Analyzing trace with hash 517017440, now seen corresponding path program 1 times [2020-10-11 15:12:47,975 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-11 15:12:47,975 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1668272020] [2020-10-11 15:12:47,975 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-11 15:12:47,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-11 15:12:48,030 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-11 15:12:48,030 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1668272020] [2020-10-11 15:12:48,030 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-11 15:12:48,031 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-11 15:12:48,031 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1980189754] [2020-10-11 15:12:48,031 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-11 15:12:48,032 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-11 15:12:48,032 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-11 15:12:48,032 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-11 15:12:48,032 INFO L87 Difference]: Start difference. First operand 898 states and 3114 transitions. Second operand 4 states. [2020-10-11 15:12:48,062 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-11 15:12:48,063 INFO L93 Difference]: Finished difference Result 952 states and 3222 transitions. [2020-10-11 15:12:48,063 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-11 15:12:48,063 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 14 [2020-10-11 15:12:48,064 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-11 15:12:48,070 INFO L225 Difference]: With dead ends: 952 [2020-10-11 15:12:48,070 INFO L226 Difference]: Without dead ends: 844 [2020-10-11 15:12:48,071 INFO L673 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 [2020-10-11 15:12:48,075 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 844 states. [2020-10-11 15:12:48,093 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 844 to 844. [2020-10-11 15:12:48,094 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 844 states. [2020-10-11 15:12:48,098 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 844 states to 844 states and 2898 transitions. [2020-10-11 15:12:48,098 INFO L78 Accepts]: Start accepts. Automaton has 844 states and 2898 transitions. Word has length 14 [2020-10-11 15:12:48,099 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-11 15:12:48,099 INFO L481 AbstractCegarLoop]: Abstraction has 844 states and 2898 transitions. [2020-10-11 15:12:48,099 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-11 15:12:48,099 INFO L276 IsEmpty]: Start isEmpty. Operand 844 states and 2898 transitions. [2020-10-11 15:12:48,101 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-10-11 15:12:48,101 INFO L413 BasicCegarLoop]: Found error trace [2020-10-11 15:12:48,101 INFO L421 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-11 15:12:48,102 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-11 15:12:48,102 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-11 15:12:48,102 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-11 15:12:48,102 INFO L82 PathProgramCache]: Analyzing trace with hash -1152352578, now seen corresponding path program 1 times [2020-10-11 15:12:48,102 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-11 15:12:48,103 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [825802039] [2020-10-11 15:12:48,103 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-11 15:12:48,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-11 15:12:48,154 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-11 15:12:48,154 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [825802039] [2020-10-11 15:12:48,155 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-11 15:12:48,155 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-11 15:12:48,155 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [913742579] [2020-10-11 15:12:48,155 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-11 15:12:48,156 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-11 15:12:48,156 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-11 15:12:48,156 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-11 15:12:48,156 INFO L87 Difference]: Start difference. First operand 844 states and 2898 transitions. Second operand 5 states. [2020-10-11 15:12:48,206 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-11 15:12:48,206 INFO L93 Difference]: Finished difference Result 1063 states and 3587 transitions. [2020-10-11 15:12:48,207 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-11 15:12:48,207 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 15 [2020-10-11 15:12:48,207 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-11 15:12:48,212 INFO L225 Difference]: With dead ends: 1063 [2020-10-11 15:12:48,212 INFO L226 Difference]: Without dead ends: 598 [2020-10-11 15:12:48,213 INFO L673 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 [2020-10-11 15:12:48,216 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 598 states. [2020-10-11 15:12:48,254 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 598 to 598. [2020-10-11 15:12:48,254 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 598 states. [2020-10-11 15:12:48,257 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 598 states to 598 states and 1914 transitions. [2020-10-11 15:12:48,258 INFO L78 Accepts]: Start accepts. Automaton has 598 states and 1914 transitions. Word has length 15 [2020-10-11 15:12:48,258 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-11 15:12:48,258 INFO L481 AbstractCegarLoop]: Abstraction has 598 states and 1914 transitions. [2020-10-11 15:12:48,258 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-11 15:12:48,258 INFO L276 IsEmpty]: Start isEmpty. Operand 598 states and 1914 transitions. [2020-10-11 15:12:48,260 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-10-11 15:12:48,260 INFO L413 BasicCegarLoop]: Found error trace [2020-10-11 15:12:48,260 INFO L421 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-11 15:12:48,260 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-11 15:12:48,261 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-11 15:12:48,261 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-11 15:12:48,261 INFO L82 PathProgramCache]: Analyzing trace with hash -1363663410, now seen corresponding path program 1 times [2020-10-11 15:12:48,261 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-11 15:12:48,261 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2121983208] [2020-10-11 15:12:48,262 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-11 15:12:48,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-11 15:12:48,314 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-11 15:12:48,314 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2121983208] [2020-10-11 15:12:48,314 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-11 15:12:48,314 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-11 15:12:48,315 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1928582752] [2020-10-11 15:12:48,315 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-11 15:12:48,315 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-11 15:12:48,316 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-11 15:12:48,316 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-11 15:12:48,316 INFO L87 Difference]: Start difference. First operand 598 states and 1914 transitions. Second operand 5 states. [2020-10-11 15:12:48,359 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-11 15:12:48,359 INFO L93 Difference]: Finished difference Result 712 states and 2245 transitions. [2020-10-11 15:12:48,359 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-11 15:12:48,360 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 16 [2020-10-11 15:12:48,360 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-11 15:12:48,362 INFO L225 Difference]: With dead ends: 712 [2020-10-11 15:12:48,362 INFO L226 Difference]: Without dead ends: 292 [2020-10-11 15:12:48,363 INFO L673 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 [2020-10-11 15:12:48,364 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 292 states. [2020-10-11 15:12:48,370 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 292 to 292. [2020-10-11 15:12:48,370 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 292 states. [2020-10-11 15:12:48,371 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 292 states to 292 states and 846 transitions. [2020-10-11 15:12:48,372 INFO L78 Accepts]: Start accepts. Automaton has 292 states and 846 transitions. Word has length 16 [2020-10-11 15:12:48,372 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-11 15:12:48,372 INFO L481 AbstractCegarLoop]: Abstraction has 292 states and 846 transitions. [2020-10-11 15:12:48,372 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-11 15:12:48,372 INFO L276 IsEmpty]: Start isEmpty. Operand 292 states and 846 transitions. [2020-10-11 15:12:48,373 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-10-11 15:12:48,373 INFO L413 BasicCegarLoop]: Found error trace [2020-10-11 15:12:48,373 INFO L421 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-11 15:12:48,374 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-11 15:12:48,374 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-11 15:12:48,374 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-11 15:12:48,374 INFO L82 PathProgramCache]: Analyzing trace with hash -670734284, now seen corresponding path program 1 times [2020-10-11 15:12:48,375 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-11 15:12:48,375 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1215396217] [2020-10-11 15:12:48,375 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-11 15:12:48,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-11 15:12:48,424 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-11 15:12:48,424 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1215396217] [2020-10-11 15:12:48,424 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-11 15:12:48,425 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-11 15:12:48,425 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [477234952] [2020-10-11 15:12:48,425 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-11 15:12:48,426 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-11 15:12:48,426 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-11 15:12:48,426 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-11 15:12:48,426 INFO L87 Difference]: Start difference. First operand 292 states and 846 transitions. Second operand 5 states. [2020-10-11 15:12:48,466 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-11 15:12:48,466 INFO L93 Difference]: Finished difference Result 352 states and 1006 transitions. [2020-10-11 15:12:48,467 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-11 15:12:48,467 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 17 [2020-10-11 15:12:48,467 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-11 15:12:48,468 INFO L225 Difference]: With dead ends: 352 [2020-10-11 15:12:48,469 INFO L226 Difference]: Without dead ends: 154 [2020-10-11 15:12:48,469 INFO L673 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 [2020-10-11 15:12:48,470 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 154 states. [2020-10-11 15:12:48,473 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 154 to 154. [2020-10-11 15:12:48,473 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 154 states. [2020-10-11 15:12:48,474 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 154 states to 154 states and 410 transitions. [2020-10-11 15:12:48,475 INFO L78 Accepts]: Start accepts. Automaton has 154 states and 410 transitions. Word has length 17 [2020-10-11 15:12:48,475 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-11 15:12:48,475 INFO L481 AbstractCegarLoop]: Abstraction has 154 states and 410 transitions. [2020-10-11 15:12:48,475 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-11 15:12:48,475 INFO L276 IsEmpty]: Start isEmpty. Operand 154 states and 410 transitions. [2020-10-11 15:12:48,476 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-10-11 15:12:48,476 INFO L413 BasicCegarLoop]: Found error trace [2020-10-11 15:12:48,476 INFO L421 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-11 15:12:48,476 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-11 15:12:48,476 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-11 15:12:48,477 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-11 15:12:48,477 INFO L82 PathProgramCache]: Analyzing trace with hash 1157328918, now seen corresponding path program 1 times [2020-10-11 15:12:48,477 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-11 15:12:48,477 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1685175920] [2020-10-11 15:12:48,478 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-11 15:12:48,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-11 15:12:48,524 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-11 15:12:48,525 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1685175920] [2020-10-11 15:12:48,525 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-11 15:12:48,525 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-11 15:12:48,525 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1307902894] [2020-10-11 15:12:48,526 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-11 15:12:48,526 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-11 15:12:48,526 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-11 15:12:48,526 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-11 15:12:48,527 INFO L87 Difference]: Start difference. First operand 154 states and 410 transitions. Second operand 5 states. [2020-10-11 15:12:48,558 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-11 15:12:48,559 INFO L93 Difference]: Finished difference Result 130 states and 334 transitions. [2020-10-11 15:12:48,559 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-11 15:12:48,559 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 18 [2020-10-11 15:12:48,560 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-11 15:12:48,560 INFO L225 Difference]: With dead ends: 130 [2020-10-11 15:12:48,560 INFO L226 Difference]: Without dead ends: 0 [2020-10-11 15:12:48,560 INFO L673 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 [2020-10-11 15:12:48,561 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-11 15:12:48,561 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-11 15:12:48,561 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-11 15:12:48,561 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-11 15:12:48,561 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 18 [2020-10-11 15:12:48,561 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-11 15:12:48,562 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-11 15:12:48,562 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-11 15:12:48,562 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-11 15:12:48,562 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-11 15:12:48,562 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-11 15:12:48,566 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.10 03:12:48 BasicIcfg [2020-10-11 15:12:48,566 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-11 15:12:48,568 INFO L168 Benchmark]: Toolchain (without parser) took 4859.00 ms. Allocated memory was 245.4 MB in the beginning and 431.0 MB in the end (delta: 185.6 MB). Free memory was 200.7 MB in the beginning and 330.7 MB in the end (delta: -130.0 MB). Peak memory consumption was 55.6 MB. Max. memory is 14.2 GB. [2020-10-11 15:12:48,569 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 245.4 MB. Free memory was 223.4 MB in the beginning and 222.6 MB in the end (delta: 839.2 kB). Peak memory consumption was 839.2 kB. Max. memory is 14.2 GB. [2020-10-11 15:12:48,570 INFO L168 Benchmark]: CACSL2BoogieTranslator took 669.58 ms. Allocated memory was 245.4 MB in the beginning and 297.3 MB in the end (delta: 51.9 MB). Free memory was 199.9 MB in the beginning and 250.5 MB in the end (delta: -50.7 MB). Peak memory consumption was 29.5 MB. Max. memory is 14.2 GB. [2020-10-11 15:12:48,571 INFO L168 Benchmark]: Boogie Procedure Inliner took 52.16 ms. Allocated memory is still 297.3 MB. Free memory was 250.5 MB in the beginning and 248.9 MB in the end (delta: 1.7 MB). Peak memory consumption was 1.7 MB. Max. memory is 14.2 GB. [2020-10-11 15:12:48,572 INFO L168 Benchmark]: Boogie Preprocessor took 32.60 ms. Allocated memory is still 297.3 MB. Free memory was 248.9 MB in the beginning and 247.2 MB in the end (delta: 1.7 MB). Peak memory consumption was 1.7 MB. Max. memory is 14.2 GB. [2020-10-11 15:12:48,572 INFO L168 Benchmark]: RCFGBuilder took 428.50 ms. Allocated memory is still 297.3 MB. Free memory was 247.2 MB in the beginning and 221.8 MB in the end (delta: 25.4 MB). Peak memory consumption was 25.4 MB. Max. memory is 14.2 GB. [2020-10-11 15:12:48,573 INFO L168 Benchmark]: TraceAbstraction took 3669.46 ms. Allocated memory was 297.3 MB in the beginning and 431.0 MB in the end (delta: 133.7 MB). Free memory was 221.0 MB in the beginning and 330.7 MB in the end (delta: -109.7 MB). Peak memory consumption was 24.0 MB. Max. memory is 14.2 GB. [2020-10-11 15:12:48,577 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 245.4 MB. Free memory was 223.4 MB in the beginning and 222.6 MB in the end (delta: 839.2 kB). Peak memory consumption was 839.2 kB. Max. memory is 14.2 GB. * CACSL2BoogieTranslator took 669.58 ms. Allocated memory was 245.4 MB in the beginning and 297.3 MB in the end (delta: 51.9 MB). Free memory was 199.9 MB in the beginning and 250.5 MB in the end (delta: -50.7 MB). Peak memory consumption was 29.5 MB. Max. memory is 14.2 GB. * Boogie Procedure Inliner took 52.16 ms. Allocated memory is still 297.3 MB. Free memory was 250.5 MB in the beginning and 248.9 MB in the end (delta: 1.7 MB). Peak memory consumption was 1.7 MB. Max. memory is 14.2 GB. * Boogie Preprocessor took 32.60 ms. Allocated memory is still 297.3 MB. Free memory was 248.9 MB in the beginning and 247.2 MB in the end (delta: 1.7 MB). Peak memory consumption was 1.7 MB. Max. memory is 14.2 GB. * RCFGBuilder took 428.50 ms. Allocated memory is still 297.3 MB. Free memory was 247.2 MB in the beginning and 221.8 MB in the end (delta: 25.4 MB). Peak memory consumption was 25.4 MB. Max. memory is 14.2 GB. * TraceAbstraction took 3669.46 ms. Allocated memory was 297.3 MB in the beginning and 431.0 MB in the end (delta: 133.7 MB). Free memory was 221.0 MB in the beginning and 330.7 MB in the end (delta: -109.7 MB). Peak memory consumption was 24.0 MB. Max. memory is 14.2 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 1437 VarBasedMoverChecksPositive, 59 VarBasedMoverChecksNegative, 12 SemBasedMoverChecksPositive, 47 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.3s, 188 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 1.7s, 97 PlacesBefore, 41 PlacesAfterwards, 86 TransitionsBefore, 29 TransitionsAfterwards, 2016 CoEnabledTransitionPairs, 6 FixpointIterations, 17 TrivialSequentialCompositions, 41 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 9 ConcurrentYvCompositions, 1 ChoiceCompositions, 68 TotalNumberOfCompositions, 4737 MoverChecksTotal - 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: 3.5s, OverallIterations: 9, TraceHistogramMax: 1, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.8s, HoareTripleCheckerStatistics: 263 SDtfs, 280 SDslu, 349 SDs, 0 SdLazy, 63 SolverSat, 8 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 38 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 36 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, 9 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 126 NumberOfCodeBlocks, 126 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 117 ConstructedInterpolants, 0 QuantifiedInterpolants, 4689 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 9 InterpolantComputations, 9 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...