/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe.epf -i ../../../trunk/examples/svcomp/pthread-wmm/safe014_pso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.2.0-60729f1 [2020-11-11 18:07:51,171 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-11 18:07:51,174 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-11 18:07:51,211 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-11 18:07:51,212 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-11 18:07:51,213 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-11 18:07:51,215 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-11 18:07:51,217 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-11 18:07:51,220 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-11 18:07:51,221 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-11 18:07:51,222 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-11 18:07:51,224 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-11 18:07:51,224 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-11 18:07:51,226 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-11 18:07:51,227 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-11 18:07:51,228 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-11 18:07:51,229 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-11 18:07:51,231 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-11 18:07:51,233 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-11 18:07:51,235 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-11 18:07:51,239 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-11 18:07:51,242 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-11 18:07:51,247 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-11 18:07:51,249 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-11 18:07:51,257 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-11-11 18:07:51,266 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-11 18:07:51,267 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-11 18:07:51,269 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-11 18:07:51,270 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-11 18:07:51,272 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-11 18:07:51,273 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-11 18:07:51,274 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-11 18:07:51,274 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-11 18:07:51,274 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-11 18:07:51,276 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-11 18:07:51,277 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-11 18:07:51,278 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe.epf [2020-11-11 18:07:51,342 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-11 18:07:51,342 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-11 18:07:51,346 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-11 18:07:51,346 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-11 18:07:51,347 INFO L138 SettingsManager]: * Use SBE=true [2020-11-11 18:07:51,347 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-11 18:07:51,347 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-11 18:07:51,347 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-11 18:07:51,348 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-11 18:07:51,348 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-11 18:07:51,349 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-11 18:07:51,350 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-11 18:07:51,350 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-11 18:07:51,350 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-11 18:07:51,351 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-11 18:07:51,351 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-11 18:07:51,351 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-11 18:07:51,352 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-11 18:07:51,352 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-11 18:07:51,352 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-11 18:07:51,352 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-11 18:07:51,353 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-11 18:07:51,353 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-11 18:07:51,353 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-11 18:07:51,354 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-11 18:07:51,354 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-11 18:07:51,355 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-11 18:07:51,355 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2020-11-11 18:07:51,355 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-11 18:07:51,355 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-11-11 18:07:51,817 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-11 18:07:51,866 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-11 18:07:51,868 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-11 18:07:51,869 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-11 18:07:51,870 INFO L275 PluginConnector]: CDTParser initialized [2020-11-11 18:07:51,871 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe014_pso.opt.i [2020-11-11 18:07:51,939 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ce649b4fa/f79406b8de0c4c479ac1feea9e96f8d8/FLAG937ade496 [2020-11-11 18:07:52,805 INFO L306 CDTParser]: Found 1 translation units. [2020-11-11 18:07:52,806 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe014_pso.opt.i [2020-11-11 18:07:52,821 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ce649b4fa/f79406b8de0c4c479ac1feea9e96f8d8/FLAG937ade496 [2020-11-11 18:07:52,837 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ce649b4fa/f79406b8de0c4c479ac1feea9e96f8d8 [2020-11-11 18:07:52,840 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-11 18:07:52,847 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-11-11 18:07:52,849 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-11 18:07:52,849 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-11 18:07:52,853 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-11 18:07:52,854 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.11 06:07:52" (1/1) ... [2020-11-11 18:07:52,857 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6bbfaa0a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 06:07:52, skipping insertion in model container [2020-11-11 18:07:52,858 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.11 06:07:52" (1/1) ... [2020-11-11 18:07:52,866 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-11 18:07:52,906 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-11 18:07:53,330 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-11 18:07:53,344 INFO L203 MainTranslator]: Completed pre-run [2020-11-11 18:07:53,425 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-11 18:07:53,511 INFO L208 MainTranslator]: Completed translation [2020-11-11 18:07:53,511 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 06:07:53 WrapperNode [2020-11-11 18:07:53,511 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-11 18:07:53,513 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-11 18:07:53,513 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-11 18:07:53,513 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-11 18:07:53,522 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 06:07:53" (1/1) ... [2020-11-11 18:07:53,544 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 06:07:53" (1/1) ... [2020-11-11 18:07:53,581 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-11 18:07:53,583 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-11 18:07:53,584 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-11 18:07:53,584 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-11 18:07:53,594 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 06:07:53" (1/1) ... [2020-11-11 18:07:53,595 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 06:07:53" (1/1) ... [2020-11-11 18:07:53,627 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 06:07:53" (1/1) ... [2020-11-11 18:07:53,627 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 06:07:53" (1/1) ... [2020-11-11 18:07:53,640 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 06:07:53" (1/1) ... [2020-11-11 18:07:53,647 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 06:07:53" (1/1) ... [2020-11-11 18:07:53,650 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 06:07:53" (1/1) ... [2020-11-11 18:07:53,656 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-11 18:07:53,657 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-11 18:07:53,658 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-11 18:07:53,658 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-11 18:07:53,664 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 06:07:53" (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 [2020-11-11 18:07:53,751 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-11 18:07:53,752 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-11-11 18:07:53,752 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-11 18:07:53,752 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-11 18:07:53,752 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-11-11 18:07:53,752 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-11-11 18:07:53,752 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-11-11 18:07:53,753 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-11-11 18:07:53,753 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-11-11 18:07:53,753 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-11-11 18:07:53,753 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-11 18:07:53,753 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-11-11 18:07:53,753 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-11 18:07:53,754 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-11 18:07:53,755 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-11-11 18:07:54,365 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-11 18:07:54,366 INFO L298 CfgBuilder]: Removed 10 assume(true) statements. [2020-11-11 18:07:54,372 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.11 06:07:54 BoogieIcfgContainer [2020-11-11 18:07:54,372 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-11 18:07:54,377 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-11 18:07:54,377 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-11 18:07:54,381 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-11 18:07:54,382 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.11 06:07:52" (1/3) ... [2020-11-11 18:07:54,383 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4220427f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.11 06:07:54, skipping insertion in model container [2020-11-11 18:07:54,383 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 06:07:53" (2/3) ... [2020-11-11 18:07:54,384 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4220427f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.11 06:07:54, skipping insertion in model container [2020-11-11 18:07:54,384 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.11 06:07:54" (3/3) ... [2020-11-11 18:07:54,386 INFO L111 eAbstractionObserver]: Analyzing ICFG safe014_pso.opt.i [2020-11-11 18:07:54,415 WARN L168 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-11-11 18:07:54,415 INFO L179 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-11 18:07:54,420 INFO L191 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-11 18:07:54,421 INFO L351 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-11-11 18:07:54,473 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:07:54,474 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:07:54,474 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:07:54,474 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:07:54,475 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:07:54,475 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:07:54,475 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:07:54,475 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:07:54,476 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:07:54,476 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:07:54,476 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:07:54,476 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:07:54,477 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:07:54,477 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:07:54,477 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:07:54,477 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:07:54,478 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:07:54,478 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:07:54,478 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:07:54,478 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:07:54,479 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:07:54,479 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:07:54,479 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:07:54,479 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:07:54,482 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:07:54,483 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:07:54,483 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:07:54,483 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:07:54,484 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:07:54,484 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:07:54,488 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:07:54,488 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:07:54,489 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:07:54,489 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:07:54,489 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:07:54,490 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:07:54,498 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:07:54,499 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:07:54,499 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:07:54,499 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:07:54,506 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:07:54,507 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:07:54,507 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:07:54,507 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:07:54,510 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:07:54,511 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:07:54,511 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:07:54,511 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:07:54,514 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2020-11-11 18:07:54,528 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-11-11 18:07:54,554 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-11 18:07:54,554 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-11 18:07:54,554 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-11 18:07:54,554 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-11 18:07:54,554 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-11 18:07:54,555 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-11 18:07:54,555 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-11 18:07:54,555 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-11 18:07:54,568 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 86 places, 79 transitions, 173 flow [2020-11-11 18:07:55,523 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 9848 states, 9846 states have (on average 3.614665854153971) internal successors, (35590), 9847 states have internal predecessors, (35590), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 18:07:55,566 INFO L276 IsEmpty]: Start isEmpty. Operand has 9848 states, 9846 states have (on average 3.614665854153971) internal successors, (35590), 9847 states have internal predecessors, (35590), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 18:07:55,616 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2020-11-11 18:07:55,617 INFO L486 BasicCegarLoop]: Found error trace [2020-11-11 18:07:55,618 INFO L494 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-11 18:07:55,618 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-11 18:07:55,624 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-11 18:07:55,625 INFO L82 PathProgramCache]: Analyzing trace with hash 1557079206, now seen corresponding path program 1 times [2020-11-11 18:07:55,636 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-11 18:07:55,637 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2091238033] [2020-11-11 18:07:55,637 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-11 18:07:55,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-11 18:07:56,150 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-11 18:07:56,151 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2091238033] [2020-11-11 18:07:56,152 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-11 18:07:56,153 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-11-11 18:07:56,154 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1425320150] [2020-11-11 18:07:56,221 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-11 18:07:56,222 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-11 18:07:56,243 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-11 18:07:56,245 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-11-11 18:07:56,270 INFO L87 Difference]: Start difference. First operand has 9848 states, 9846 states have (on average 3.614665854153971) internal successors, (35590), 9847 states have internal predecessors, (35590), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 6 states, 6 states have (on average 7.0) internal successors, (42), 6 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 18:07:56,730 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-11 18:07:56,731 INFO L93 Difference]: Finished difference Result 12200 states and 42464 transitions. [2020-11-11 18:07:56,732 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-11-11 18:07:56,733 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.0) internal successors, (42), 6 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 42 [2020-11-11 18:07:56,734 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-11 18:07:56,797 INFO L225 Difference]: With dead ends: 12200 [2020-11-11 18:07:56,797 INFO L226 Difference]: Without dead ends: 4605 [2020-11-11 18:07:56,799 INFO L749 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2020-11-11 18:07:56,863 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4605 states. [2020-11-11 18:07:57,226 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4605 to 4605. [2020-11-11 18:07:57,249 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4605 states, 4604 states have (on average 3.415291051259774) internal successors, (15724), 4604 states have internal predecessors, (15724), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 18:07:57,292 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4605 states to 4605 states and 15724 transitions. [2020-11-11 18:07:57,293 INFO L78 Accepts]: Start accepts. Automaton has 4605 states and 15724 transitions. Word has length 42 [2020-11-11 18:07:57,295 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-11 18:07:57,296 INFO L481 AbstractCegarLoop]: Abstraction has 4605 states and 15724 transitions. [2020-11-11 18:07:57,297 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 7.0) internal successors, (42), 6 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 18:07:57,297 INFO L276 IsEmpty]: Start isEmpty. Operand 4605 states and 15724 transitions. [2020-11-11 18:07:57,312 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2020-11-11 18:07:57,313 INFO L486 BasicCegarLoop]: Found error trace [2020-11-11 18:07:57,316 INFO L494 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-11 18:07:57,318 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-11 18:07:57,319 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-11 18:07:57,321 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-11 18:07:57,322 INFO L82 PathProgramCache]: Analyzing trace with hash -1581474041, now seen corresponding path program 1 times [2020-11-11 18:07:57,325 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-11 18:07:57,326 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1010012887] [2020-11-11 18:07:57,326 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-11 18:07:57,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-11 18:07:57,636 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-11 18:07:57,636 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1010012887] [2020-11-11 18:07:57,637 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-11 18:07:57,637 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-11-11 18:07:57,637 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1570168726] [2020-11-11 18:07:57,639 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-11-11 18:07:57,639 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-11 18:07:57,640 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-11-11 18:07:57,641 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-11-11 18:07:57,641 INFO L87 Difference]: Start difference. First operand 4605 states and 15724 transitions. Second operand has 7 states, 7 states have (on average 6.285714285714286) internal successors, (44), 7 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 18:07:58,033 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-11 18:07:58,034 INFO L93 Difference]: Finished difference Result 5725 states and 19295 transitions. [2020-11-11 18:07:58,034 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-11-11 18:07:58,035 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.285714285714286) internal successors, (44), 7 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 44 [2020-11-11 18:07:58,035 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-11 18:07:58,063 INFO L225 Difference]: With dead ends: 5725 [2020-11-11 18:07:58,063 INFO L226 Difference]: Without dead ends: 2870 [2020-11-11 18:07:58,064 INFO L749 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182 [2020-11-11 18:07:58,080 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2870 states. [2020-11-11 18:07:58,222 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2870 to 2870. [2020-11-11 18:07:58,231 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2870 states, 2869 states have (on average 3.3049843150923666) internal successors, (9482), 2869 states have internal predecessors, (9482), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 18:07:58,248 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2870 states to 2870 states and 9482 transitions. [2020-11-11 18:07:58,249 INFO L78 Accepts]: Start accepts. Automaton has 2870 states and 9482 transitions. Word has length 44 [2020-11-11 18:07:58,250 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-11 18:07:58,250 INFO L481 AbstractCegarLoop]: Abstraction has 2870 states and 9482 transitions. [2020-11-11 18:07:58,250 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 6.285714285714286) internal successors, (44), 7 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 18:07:58,251 INFO L276 IsEmpty]: Start isEmpty. Operand 2870 states and 9482 transitions. [2020-11-11 18:07:58,263 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2020-11-11 18:07:58,263 INFO L486 BasicCegarLoop]: Found error trace [2020-11-11 18:07:58,263 INFO L494 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-11 18:07:58,263 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-11 18:07:58,264 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-11 18:07:58,265 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-11 18:07:58,265 INFO L82 PathProgramCache]: Analyzing trace with hash 674177462, now seen corresponding path program 1 times [2020-11-11 18:07:58,266 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-11 18:07:58,266 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1583834375] [2020-11-11 18:07:58,266 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-11 18:07:58,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-11 18:07:58,480 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-11 18:07:58,481 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1583834375] [2020-11-11 18:07:58,482 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-11 18:07:58,482 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-11-11 18:07:58,482 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [219243182] [2020-11-11 18:07:58,483 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-11 18:07:58,483 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-11 18:07:58,489 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-11 18:07:58,490 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-11-11 18:07:58,490 INFO L87 Difference]: Start difference. First operand 2870 states and 9482 transitions. Second operand has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 6 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 18:07:58,777 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-11 18:07:58,778 INFO L93 Difference]: Finished difference Result 3110 states and 10154 transitions. [2020-11-11 18:07:58,778 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-11-11 18:07:58,779 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 6 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2020-11-11 18:07:58,779 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-11 18:07:58,802 INFO L225 Difference]: With dead ends: 3110 [2020-11-11 18:07:58,802 INFO L226 Difference]: Without dead ends: 2550 [2020-11-11 18:07:58,803 INFO L749 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2020-11-11 18:07:58,818 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2550 states. [2020-11-11 18:07:58,949 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2550 to 2550. [2020-11-11 18:07:58,956 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2550 states, 2549 states have (on average 3.274225186347587) internal successors, (8346), 2549 states have internal predecessors, (8346), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 18:07:58,968 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2550 states to 2550 states and 8346 transitions. [2020-11-11 18:07:58,968 INFO L78 Accepts]: Start accepts. Automaton has 2550 states and 8346 transitions. Word has length 47 [2020-11-11 18:07:58,969 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-11 18:07:58,969 INFO L481 AbstractCegarLoop]: Abstraction has 2550 states and 8346 transitions. [2020-11-11 18:07:58,969 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 6 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 18:07:58,970 INFO L276 IsEmpty]: Start isEmpty. Operand 2550 states and 8346 transitions. [2020-11-11 18:07:58,978 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2020-11-11 18:07:58,978 INFO L486 BasicCegarLoop]: Found error trace [2020-11-11 18:07:58,979 INFO L494 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-11 18:07:58,979 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-11-11 18:07:58,979 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-11 18:07:58,980 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-11 18:07:58,980 INFO L82 PathProgramCache]: Analyzing trace with hash -1902429865, now seen corresponding path program 1 times [2020-11-11 18:07:58,980 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-11 18:07:58,980 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1875752332] [2020-11-11 18:07:58,980 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-11 18:07:59,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-11 18:07:59,127 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-11 18:07:59,127 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1875752332] [2020-11-11 18:07:59,127 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-11 18:07:59,127 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-11-11 18:07:59,128 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [687864183] [2020-11-11 18:07:59,128 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-11-11 18:07:59,128 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-11 18:07:59,129 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-11-11 18:07:59,129 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-11-11 18:07:59,129 INFO L87 Difference]: Start difference. First operand 2550 states and 8346 transitions. Second operand has 7 states, 7 states have (on average 7.0) internal successors, (49), 7 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 18:07:59,624 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-11 18:07:59,624 INFO L93 Difference]: Finished difference Result 4240 states and 13798 transitions. [2020-11-11 18:07:59,624 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-11-11 18:07:59,625 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.0) internal successors, (49), 7 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 49 [2020-11-11 18:07:59,625 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-11 18:07:59,644 INFO L225 Difference]: With dead ends: 4240 [2020-11-11 18:07:59,644 INFO L226 Difference]: Without dead ends: 2390 [2020-11-11 18:07:59,645 INFO L749 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 53 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=106, Invalid=236, Unknown=0, NotChecked=0, Total=342 [2020-11-11 18:07:59,656 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2390 states. [2020-11-11 18:07:59,718 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2390 to 2390. [2020-11-11 18:07:59,724 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2390 states, 2389 states have (on average 3.249895353704479) internal successors, (7764), 2389 states have internal predecessors, (7764), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 18:07:59,735 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2390 states to 2390 states and 7764 transitions. [2020-11-11 18:07:59,735 INFO L78 Accepts]: Start accepts. Automaton has 2390 states and 7764 transitions. Word has length 49 [2020-11-11 18:07:59,735 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-11 18:07:59,736 INFO L481 AbstractCegarLoop]: Abstraction has 2390 states and 7764 transitions. [2020-11-11 18:07:59,736 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 7.0) internal successors, (49), 7 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 18:07:59,736 INFO L276 IsEmpty]: Start isEmpty. Operand 2390 states and 7764 transitions. [2020-11-11 18:07:59,743 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2020-11-11 18:07:59,743 INFO L486 BasicCegarLoop]: Found error trace [2020-11-11 18:07:59,744 INFO L494 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-11 18:07:59,744 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-11-11 18:07:59,744 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-11 18:07:59,744 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-11 18:07:59,745 INFO L82 PathProgramCache]: Analyzing trace with hash -1518373285, now seen corresponding path program 1 times [2020-11-11 18:07:59,745 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-11 18:07:59,745 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [719110275] [2020-11-11 18:07:59,745 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-11 18:07:59,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-11 18:07:59,864 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-11 18:07:59,865 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [719110275] [2020-11-11 18:07:59,865 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-11 18:07:59,865 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-11-11 18:07:59,866 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1391726303] [2020-11-11 18:07:59,866 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-11 18:07:59,866 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-11 18:07:59,867 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-11 18:07:59,867 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-11-11 18:07:59,868 INFO L87 Difference]: Start difference. First operand 2390 states and 7764 transitions. Second operand has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 6 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 18:08:00,056 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-11 18:08:00,056 INFO L93 Difference]: Finished difference Result 3126 states and 10044 transitions. [2020-11-11 18:08:00,057 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-11-11 18:08:00,058 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 6 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 50 [2020-11-11 18:08:00,058 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-11 18:08:00,097 INFO L225 Difference]: With dead ends: 3126 [2020-11-11 18:08:00,097 INFO L226 Difference]: Without dead ends: 2174 [2020-11-11 18:08:00,099 INFO L749 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2020-11-11 18:08:00,111 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2174 states. [2020-11-11 18:08:00,201 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2174 to 2174. [2020-11-11 18:08:00,207 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2174 states, 2173 states have (on average 3.207547169811321) internal successors, (6970), 2173 states have internal predecessors, (6970), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 18:08:00,215 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2174 states to 2174 states and 6970 transitions. [2020-11-11 18:08:00,216 INFO L78 Accepts]: Start accepts. Automaton has 2174 states and 6970 transitions. Word has length 50 [2020-11-11 18:08:00,218 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-11 18:08:00,218 INFO L481 AbstractCegarLoop]: Abstraction has 2174 states and 6970 transitions. [2020-11-11 18:08:00,218 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 6 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 18:08:00,218 INFO L276 IsEmpty]: Start isEmpty. Operand 2174 states and 6970 transitions. [2020-11-11 18:08:00,226 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2020-11-11 18:08:00,226 INFO L486 BasicCegarLoop]: Found error trace [2020-11-11 18:08:00,226 INFO L494 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-11 18:08:00,227 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-11-11 18:08:00,227 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-11 18:08:00,227 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-11 18:08:00,227 INFO L82 PathProgramCache]: Analyzing trace with hash 1388621878, now seen corresponding path program 1 times [2020-11-11 18:08:00,228 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-11 18:08:00,228 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1001039106] [2020-11-11 18:08:00,228 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-11 18:08:00,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-11 18:08:00,410 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-11 18:08:00,410 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1001039106] [2020-11-11 18:08:00,410 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-11 18:08:00,410 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-11-11 18:08:00,411 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1354052932] [2020-11-11 18:08:00,411 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-11-11 18:08:00,411 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-11 18:08:00,412 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-11-11 18:08:00,412 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-11-11 18:08:00,412 INFO L87 Difference]: Start difference. First operand 2174 states and 6970 transitions. Second operand has 7 states, 7 states have (on average 7.285714285714286) internal successors, (51), 7 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 18:08:00,598 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-11 18:08:00,598 INFO L93 Difference]: Finished difference Result 2396 states and 7505 transitions. [2020-11-11 18:08:00,598 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-11-11 18:08:00,599 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.285714285714286) internal successors, (51), 7 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 51 [2020-11-11 18:08:00,599 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-11 18:08:00,606 INFO L225 Difference]: With dead ends: 2396 [2020-11-11 18:08:00,606 INFO L226 Difference]: Without dead ends: 1604 [2020-11-11 18:08:00,606 INFO L749 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=49, Invalid=107, Unknown=0, NotChecked=0, Total=156 [2020-11-11 18:08:00,614 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1604 states. [2020-11-11 18:08:00,649 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1604 to 1604. [2020-11-11 18:08:00,653 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1604 states, 1603 states have (on average 3.0723643169058015) internal successors, (4925), 1603 states have internal predecessors, (4925), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 18:08:00,659 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1604 states to 1604 states and 4925 transitions. [2020-11-11 18:08:00,659 INFO L78 Accepts]: Start accepts. Automaton has 1604 states and 4925 transitions. Word has length 51 [2020-11-11 18:08:00,660 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-11 18:08:00,660 INFO L481 AbstractCegarLoop]: Abstraction has 1604 states and 4925 transitions. [2020-11-11 18:08:00,660 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 7.285714285714286) internal successors, (51), 7 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 18:08:00,660 INFO L276 IsEmpty]: Start isEmpty. Operand 1604 states and 4925 transitions. [2020-11-11 18:08:00,664 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2020-11-11 18:08:00,665 INFO L486 BasicCegarLoop]: Found error trace [2020-11-11 18:08:00,665 INFO L494 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-11 18:08:00,665 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-11-11 18:08:00,665 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-11 18:08:00,666 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-11 18:08:00,666 INFO L82 PathProgramCache]: Analyzing trace with hash 1603073441, now seen corresponding path program 1 times [2020-11-11 18:08:00,666 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-11 18:08:00,666 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [666914151] [2020-11-11 18:08:00,667 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-11 18:08:00,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-11 18:08:00,791 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-11 18:08:00,792 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [666914151] [2020-11-11 18:08:00,792 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-11 18:08:00,792 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-11-11 18:08:00,792 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [930743797] [2020-11-11 18:08:00,793 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-11-11 18:08:00,793 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-11 18:08:00,794 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-11-11 18:08:00,794 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-11-11 18:08:00,794 INFO L87 Difference]: Start difference. First operand 1604 states and 4925 transitions. Second operand has 8 states, 8 states have (on average 6.5) internal successors, (52), 8 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 18:08:01,037 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-11 18:08:01,037 INFO L93 Difference]: Finished difference Result 1343 states and 3992 transitions. [2020-11-11 18:08:01,038 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-11-11 18:08:01,038 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.5) internal successors, (52), 8 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 52 [2020-11-11 18:08:01,038 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-11 18:08:01,041 INFO L225 Difference]: With dead ends: 1343 [2020-11-11 18:08:01,042 INFO L226 Difference]: Without dead ends: 911 [2020-11-11 18:08:01,043 INFO L749 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=61, Invalid=149, Unknown=0, NotChecked=0, Total=210 [2020-11-11 18:08:01,047 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 911 states. [2020-11-11 18:08:01,072 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 911 to 911. [2020-11-11 18:08:01,074 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 911 states, 910 states have (on average 2.8736263736263736) internal successors, (2615), 910 states have internal predecessors, (2615), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 18:08:01,078 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 911 states to 911 states and 2615 transitions. [2020-11-11 18:08:01,078 INFO L78 Accepts]: Start accepts. Automaton has 911 states and 2615 transitions. Word has length 52 [2020-11-11 18:08:01,078 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-11 18:08:01,078 INFO L481 AbstractCegarLoop]: Abstraction has 911 states and 2615 transitions. [2020-11-11 18:08:01,079 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 6.5) internal successors, (52), 8 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 18:08:01,079 INFO L276 IsEmpty]: Start isEmpty. Operand 911 states and 2615 transitions. [2020-11-11 18:08:01,082 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2020-11-11 18:08:01,082 INFO L486 BasicCegarLoop]: Found error trace [2020-11-11 18:08:01,082 INFO L494 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-11 18:08:01,082 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-11-11 18:08:01,083 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-11 18:08:01,083 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-11 18:08:01,083 INFO L82 PathProgramCache]: Analyzing trace with hash -986251264, now seen corresponding path program 1 times [2020-11-11 18:08:01,083 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-11 18:08:01,084 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2088855273] [2020-11-11 18:08:01,084 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-11 18:08:01,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-11 18:08:01,257 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-11 18:08:01,258 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2088855273] [2020-11-11 18:08:01,258 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-11 18:08:01,258 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-11-11 18:08:01,258 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [259719243] [2020-11-11 18:08:01,259 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-11-11 18:08:01,259 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-11 18:08:01,260 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-11-11 18:08:01,260 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-11-11 18:08:01,260 INFO L87 Difference]: Start difference. First operand 911 states and 2615 transitions. Second operand has 7 states, 7 states have (on average 7.714285714285714) internal successors, (54), 7 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 18:08:01,375 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-11 18:08:01,376 INFO L93 Difference]: Finished difference Result 1282 states and 3696 transitions. [2020-11-11 18:08:01,376 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-11-11 18:08:01,377 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.714285714285714) internal successors, (54), 7 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 54 [2020-11-11 18:08:01,377 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-11 18:08:01,380 INFO L225 Difference]: With dead ends: 1282 [2020-11-11 18:08:01,380 INFO L226 Difference]: Without dead ends: 719 [2020-11-11 18:08:01,380 INFO L749 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2020-11-11 18:08:01,384 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 719 states. [2020-11-11 18:08:01,401 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 719 to 719. [2020-11-11 18:08:01,403 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 719 states, 718 states have (on average 2.83983286908078) internal successors, (2039), 718 states have internal predecessors, (2039), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 18:08:01,406 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 719 states to 719 states and 2039 transitions. [2020-11-11 18:08:01,406 INFO L78 Accepts]: Start accepts. Automaton has 719 states and 2039 transitions. Word has length 54 [2020-11-11 18:08:01,407 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-11 18:08:01,407 INFO L481 AbstractCegarLoop]: Abstraction has 719 states and 2039 transitions. [2020-11-11 18:08:01,407 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 7.714285714285714) internal successors, (54), 7 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 18:08:01,407 INFO L276 IsEmpty]: Start isEmpty. Operand 719 states and 2039 transitions. [2020-11-11 18:08:01,410 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2020-11-11 18:08:01,410 INFO L486 BasicCegarLoop]: Found error trace [2020-11-11 18:08:01,410 INFO L494 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-11 18:08:01,410 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-11-11 18:08:01,410 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-11 18:08:01,411 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-11 18:08:01,411 INFO L82 PathProgramCache]: Analyzing trace with hash -1457594808, now seen corresponding path program 2 times [2020-11-11 18:08:01,411 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-11 18:08:01,412 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [156331964] [2020-11-11 18:08:01,412 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-11 18:08:01,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-11 18:08:01,532 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-11 18:08:01,532 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [156331964] [2020-11-11 18:08:01,533 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-11 18:08:01,533 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-11-11 18:08:01,533 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2079463222] [2020-11-11 18:08:01,533 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-11-11 18:08:01,534 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-11 18:08:01,534 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-11-11 18:08:01,535 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-11-11 18:08:01,535 INFO L87 Difference]: Start difference. First operand 719 states and 2039 transitions. Second operand has 7 states, 7 states have (on average 7.714285714285714) internal successors, (54), 7 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 18:08:01,642 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-11 18:08:01,643 INFO L93 Difference]: Finished difference Result 611 states and 1715 transitions. [2020-11-11 18:08:01,643 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-11-11 18:08:01,643 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.714285714285714) internal successors, (54), 7 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 54 [2020-11-11 18:08:01,643 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-11 18:08:01,644 INFO L225 Difference]: With dead ends: 611 [2020-11-11 18:08:01,644 INFO L226 Difference]: Without dead ends: 0 [2020-11-11 18:08:01,644 INFO L749 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2020-11-11 18:08:01,644 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-11-11 18:08:01,645 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-11-11 18:08:01,645 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 18:08:01,645 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-11-11 18:08:01,645 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 54 [2020-11-11 18:08:01,645 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-11 18:08:01,646 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-11 18:08:01,646 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 7.714285714285714) internal successors, (54), 7 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 18:08:01,646 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-11-11 18:08:01,646 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-11 18:08:01,646 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-11-11 18:08:01,652 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.11 06:08:01 BasicIcfg [2020-11-11 18:08:01,652 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-11 18:08:01,654 INFO L168 Benchmark]: Toolchain (without parser) took 8811.17 ms. Allocated memory was 302.0 MB in the beginning and 947.9 MB in the end (delta: 645.9 MB). Free memory was 276.8 MB in the beginning and 735.3 MB in the end (delta: -458.5 MB). Peak memory consumption was 189.3 MB. Max. memory is 16.0 GB. [2020-11-11 18:08:01,655 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 302.0 MB. Free memory is still 272.2 MB. There was no memory consumed. Max. memory is 16.0 GB. [2020-11-11 18:08:01,656 INFO L168 Benchmark]: CACSL2BoogieTranslator took 663.23 ms. Allocated memory is still 302.0 MB. Free memory was 276.2 MB in the beginning and 245.4 MB in the end (delta: 30.9 MB). Peak memory consumption was 29.4 MB. Max. memory is 16.0 GB. [2020-11-11 18:08:01,656 INFO L168 Benchmark]: Boogie Procedure Inliner took 68.49 ms. Allocated memory is still 302.0 MB. Free memory was 245.4 MB in the beginning and 243.4 MB in the end (delta: 1.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2020-11-11 18:08:01,657 INFO L168 Benchmark]: Boogie Preprocessor took 73.91 ms. Allocated memory is still 302.0 MB. Free memory was 243.4 MB in the beginning and 284.9 MB in the end (delta: -41.5 MB). Peak memory consumption was 6.5 MB. Max. memory is 16.0 GB. [2020-11-11 18:08:01,658 INFO L168 Benchmark]: RCFGBuilder took 715.29 ms. Allocated memory is still 302.0 MB. Free memory was 284.9 MB in the beginning and 260.7 MB in the end (delta: 24.2 MB). Peak memory consumption was 25.2 MB. Max. memory is 16.0 GB. [2020-11-11 18:08:01,659 INFO L168 Benchmark]: TraceAbstraction took 7274.66 ms. Allocated memory was 302.0 MB in the beginning and 947.9 MB in the end (delta: 645.9 MB). Free memory was 260.7 MB in the beginning and 735.3 MB in the end (delta: -474.6 MB). Peak memory consumption was 170.2 MB. Max. memory is 16.0 GB. [2020-11-11 18:08:01,663 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 302.0 MB. Free memory is still 272.2 MB. There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 663.23 ms. Allocated memory is still 302.0 MB. Free memory was 276.2 MB in the beginning and 245.4 MB in the end (delta: 30.9 MB). Peak memory consumption was 29.4 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 68.49 ms. Allocated memory is still 302.0 MB. Free memory was 245.4 MB in the beginning and 243.4 MB in the end (delta: 1.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 73.91 ms. Allocated memory is still 302.0 MB. Free memory was 243.4 MB in the beginning and 284.9 MB in the end (delta: -41.5 MB). Peak memory consumption was 6.5 MB. Max. memory is 16.0 GB. * RCFGBuilder took 715.29 ms. Allocated memory is still 302.0 MB. Free memory was 284.9 MB in the beginning and 260.7 MB in the end (delta: 24.2 MB). Peak memory consumption was 25.2 MB. Max. memory is 16.0 GB. * TraceAbstraction took 7274.66 ms. Allocated memory was 302.0 MB in the beginning and 947.9 MB in the end (delta: 645.9 MB). Free memory was 260.7 MB in the beginning and 735.3 MB in the end (delta: -474.6 MB). Peak memory consumption was 170.2 MB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 17]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 77 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 7.0s, OverallIterations: 9, TraceHistogramMax: 1, AutomataDifference: 2.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.9s, HoareTripleCheckerStatistics: 846 SDtfs, 1264 SDslu, 2828 SDs, 0 SdLazy, 354 SolverSat, 58 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 117 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 98 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 128 ImplicationChecksByTransitivity, 1.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=9848occurred 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: 1.1s AutomataMinimizationTime, 9 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 1.2s InterpolantComputationTime, 443 NumberOfCodeBlocks, 443 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 434 ConstructedInterpolants, 0 QuantifiedInterpolants, 56424 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...