/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-keepdead.epf -i ../../../trunk/examples/svcomp/pthread-wmm/safe018_tso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.2.0-aa1e80b [2020-12-17 23:52:26,174 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-17 23:52:26,178 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-17 23:52:26,234 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-17 23:52:26,235 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-17 23:52:26,239 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-17 23:52:26,244 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-17 23:52:26,252 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-17 23:52:26,256 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-17 23:52:26,262 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-17 23:52:26,264 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-17 23:52:26,265 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-17 23:52:26,266 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-17 23:52:26,270 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-17 23:52:26,272 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-17 23:52:26,274 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-17 23:52:26,275 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-17 23:52:26,279 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-17 23:52:26,286 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-17 23:52:26,295 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-17 23:52:26,297 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-17 23:52:26,299 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-17 23:52:26,301 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-17 23:52:26,303 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-17 23:52:26,311 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-17 23:52:26,312 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-17 23:52:26,312 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-17 23:52:26,315 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-17 23:52:26,316 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-17 23:52:26,318 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-17 23:52:26,318 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-17 23:52:26,319 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-17 23:52:26,322 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-17 23:52:26,323 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-17 23:52:26,325 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-17 23:52:26,325 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-17 23:52:26,326 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-17 23:52:26,327 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-17 23:52:26,327 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-17 23:52:26,329 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-17 23:52:26,329 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-17 23:52:26,331 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-keepdead.epf [2020-12-17 23:52:26,385 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-17 23:52:26,386 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-17 23:52:26,390 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-17 23:52:26,391 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-17 23:52:26,391 INFO L138 SettingsManager]: * Use SBE=true [2020-12-17 23:52:26,391 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-17 23:52:26,391 INFO L138 SettingsManager]: * sizeof long=4 [2020-12-17 23:52:26,391 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-17 23:52:26,392 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-12-17 23:52:26,392 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-17 23:52:26,393 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-17 23:52:26,394 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-17 23:52:26,394 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-17 23:52:26,394 INFO L138 SettingsManager]: * sizeof long double=12 [2020-12-17 23:52:26,394 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-17 23:52:26,394 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-17 23:52:26,395 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-17 23:52:26,395 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-17 23:52:26,395 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-17 23:52:26,395 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-12-17 23:52:26,396 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-17 23:52:26,396 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-17 23:52:26,396 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-17 23:52:26,396 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-17 23:52:26,397 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-17 23:52:26,397 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-12-17 23:52:26,397 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-17 23:52:26,397 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2020-12-17 23:52:26,397 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-17 23:52:26,398 INFO L138 SettingsManager]: * Remove dead ends from automaton=false [2020-12-17 23:52:26,398 INFO L138 SettingsManager]: * Minimization of abstraction=NONE [2020-12-17 23:52:26,398 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-12-17 23:52:26,786 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-17 23:52:26,822 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-17 23:52:26,826 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-17 23:52:26,828 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-17 23:52:26,829 INFO L275 PluginConnector]: CDTParser initialized [2020-12-17 23:52:26,830 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe018_tso.oepc.i [2020-12-17 23:52:26,927 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fe5084918/04998650b8294be8b46e08ef35d54184/FLAG342183250 [2020-12-17 23:52:27,715 INFO L306 CDTParser]: Found 1 translation units. [2020-12-17 23:52:27,716 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe018_tso.oepc.i [2020-12-17 23:52:27,734 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fe5084918/04998650b8294be8b46e08ef35d54184/FLAG342183250 [2020-12-17 23:52:27,923 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fe5084918/04998650b8294be8b46e08ef35d54184 [2020-12-17 23:52:27,926 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-17 23:52:27,928 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-12-17 23:52:27,930 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-17 23:52:27,930 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-17 23:52:27,937 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-17 23:52:27,937 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.12 11:52:27" (1/1) ... [2020-12-17 23:52:27,944 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1cc842f8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 11:52:27, skipping insertion in model container [2020-12-17 23:52:27,944 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.12 11:52:27" (1/1) ... [2020-12-17 23:52:27,954 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-17 23:52:28,027 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-17 23:52:28,445 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-17 23:52:28,456 INFO L203 MainTranslator]: Completed pre-run [2020-12-17 23:52:28,533 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-17 23:52:28,670 INFO L208 MainTranslator]: Completed translation [2020-12-17 23:52:28,670 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 11:52:28 WrapperNode [2020-12-17 23:52:28,671 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-17 23:52:28,672 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-17 23:52:28,672 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-17 23:52:28,674 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-17 23:52:28,683 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 11:52:28" (1/1) ... [2020-12-17 23:52:28,737 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 11:52:28" (1/1) ... [2020-12-17 23:52:28,784 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-17 23:52:28,786 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-17 23:52:28,786 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-17 23:52:28,786 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-17 23:52:28,796 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 11:52:28" (1/1) ... [2020-12-17 23:52:28,796 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 11:52:28" (1/1) ... [2020-12-17 23:52:28,812 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 11:52:28" (1/1) ... [2020-12-17 23:52:28,813 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 11:52:28" (1/1) ... [2020-12-17 23:52:28,819 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 11:52:28" (1/1) ... [2020-12-17 23:52:28,822 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 11:52:28" (1/1) ... [2020-12-17 23:52:28,824 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 11:52:28" (1/1) ... [2020-12-17 23:52:28,827 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-17 23:52:28,828 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-17 23:52:28,829 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-17 23:52:28,829 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-17 23:52:28,830 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 11:52:28" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-17 23:52:28,903 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-12-17 23:52:28,903 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-12-17 23:52:28,903 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-17 23:52:28,903 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-12-17 23:52:28,903 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-12-17 23:52:28,904 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-12-17 23:52:28,904 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-12-17 23:52:28,904 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-12-17 23:52:28,904 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-12-17 23:52:28,904 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-12-17 23:52:28,904 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-17 23:52:28,905 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-12-17 23:52:28,905 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-17 23:52:28,905 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-17 23:52:28,907 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-12-17 23:52:29,525 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-17 23:52:29,525 INFO L298 CfgBuilder]: Removed 10 assume(true) statements. [2020-12-17 23:52:29,529 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.12 11:52:29 BoogieIcfgContainer [2020-12-17 23:52:29,529 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-17 23:52:29,531 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-17 23:52:29,531 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-17 23:52:29,534 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-17 23:52:29,535 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.12 11:52:27" (1/3) ... [2020-12-17 23:52:29,536 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@731f3eec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.12 11:52:29, skipping insertion in model container [2020-12-17 23:52:29,536 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 11:52:28" (2/3) ... [2020-12-17 23:52:29,536 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@731f3eec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.12 11:52:29, skipping insertion in model container [2020-12-17 23:52:29,537 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.12 11:52:29" (3/3) ... [2020-12-17 23:52:29,538 INFO L111 eAbstractionObserver]: Analyzing ICFG safe018_tso.oepc.i [2020-12-17 23:52:29,556 WARN L168 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-12-17 23:52:29,556 INFO L179 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-17 23:52:29,561 INFO L191 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-12-17 23:52:29,562 INFO L351 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-12-17 23:52:29,618 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:52:29,619 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:52:29,619 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:52:29,619 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:52:29,619 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:52:29,619 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:52:29,620 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:52:29,620 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:52:29,620 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:52:29,620 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:52:29,621 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:52:29,621 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:52:29,622 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:52:29,622 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:52:29,623 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:52:29,623 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:52:29,623 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:52:29,623 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:52:29,623 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:52:29,623 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:52:29,624 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:52:29,624 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:52:29,624 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:52:29,624 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:52:29,626 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:52:29,626 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:52:29,626 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:52:29,626 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:52:29,628 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:52:29,628 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:52:29,628 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:52:29,629 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:52:29,630 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:52:29,631 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:52:29,631 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:52:29,631 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:52:29,639 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:52:29,641 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:52:29,641 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:52:29,642 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:52:29,651 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:52:29,651 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:52:29,651 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:52:29,652 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:52:29,655 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:52:29,656 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:52:29,656 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:52:29,656 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:52:29,660 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2020-12-17 23:52:29,675 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-12-17 23:52:29,717 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-17 23:52:29,718 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-17 23:52:29,718 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-17 23:52:29,718 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-17 23:52:29,718 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-17 23:52:29,718 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-17 23:52:29,718 INFO L383 AbstractCegarLoop]: Minimize is NONE [2020-12-17 23:52:29,719 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-17 23:52:29,738 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 85 places, 78 transitions, 171 flow [2020-12-17 23:52:30,472 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 8448 states, 8446 states have (on average 3.5893914278948613) internal successors, (30316), 8447 states have internal predecessors, (30316), 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) [2020-12-17 23:52:30,526 INFO L276 IsEmpty]: Start isEmpty. Operand has 8448 states, 8446 states have (on average 3.5893914278948613) internal successors, (30316), 8447 states have internal predecessors, (30316), 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) [2020-12-17 23:52:30,595 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2020-12-17 23:52:30,595 INFO L496 BasicCegarLoop]: Found error trace [2020-12-17 23:52:30,596 INFO L504 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-17 23:52:30,597 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-17 23:52:30,603 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-17 23:52:30,603 INFO L82 PathProgramCache]: Analyzing trace with hash 31988960, now seen corresponding path program 1 times [2020-12-17 23:52:30,613 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-17 23:52:30,614 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2067924277] [2020-12-17 23:52:30,614 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-17 23:52:30,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-17 23:52:31,087 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-17 23:52:31,088 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2067924277] [2020-12-17 23:52:31,089 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-17 23:52:31,089 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-12-17 23:52:31,090 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1509248981] [2020-12-17 23:52:31,095 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-17 23:52:31,096 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-17 23:52:31,111 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-17 23:52:31,112 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-12-17 23:52:31,143 INFO L87 Difference]: Start difference. First operand has 8448 states, 8446 states have (on average 3.5893914278948613) internal successors, (30316), 8447 states have internal predecessors, (30316), 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) [2020-12-17 23:52:31,528 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-17 23:52:31,528 INFO L93 Difference]: Finished difference Result 10464 states and 36160 transitions. [2020-12-17 23:52:31,529 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-12-17 23:52:31,531 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 [2020-12-17 23:52:31,531 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-17 23:52:31,533 INFO L763 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2020-12-17 23:52:31,534 INFO L78 Accepts]: Start accepts. Automaton has 10464 states and 36160 transitions. Word has length 42 [2020-12-17 23:52:31,535 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-17 23:52:31,536 INFO L481 AbstractCegarLoop]: Abstraction has 10464 states and 36160 transitions. [2020-12-17 23:52:31,536 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) [2020-12-17 23:52:31,536 INFO L276 IsEmpty]: Start isEmpty. Operand 10464 states and 36160 transitions. [2020-12-17 23:52:31,553 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2020-12-17 23:52:31,553 INFO L496 BasicCegarLoop]: Found error trace [2020-12-17 23:52:31,553 INFO L504 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-17 23:52:31,553 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-17 23:52:31,554 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-17 23:52:31,554 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-17 23:52:31,555 INFO L82 PathProgramCache]: Analyzing trace with hash -95647071, now seen corresponding path program 1 times [2020-12-17 23:52:31,555 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-17 23:52:31,555 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1178442258] [2020-12-17 23:52:31,555 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-17 23:52:31,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-17 23:52:31,700 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-17 23:52:31,701 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1178442258] [2020-12-17 23:52:31,701 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-17 23:52:31,701 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-12-17 23:52:31,701 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1090557998] [2020-12-17 23:52:31,703 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-12-17 23:52:31,703 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-17 23:52:31,704 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-12-17 23:52:31,704 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-12-17 23:52:31,705 INFO L87 Difference]: Start difference. First operand 10464 states and 36160 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) [2020-12-17 23:52:32,020 WARN L193 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 21 [2020-12-17 23:52:32,230 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-17 23:52:32,231 INFO L93 Difference]: Finished difference Result 14424 states and 49228 transitions. [2020-12-17 23:52:32,231 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-12-17 23:52:32,231 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 [2020-12-17 23:52:32,232 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-17 23:52:32,234 INFO L763 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=79, Invalid=161, Unknown=0, NotChecked=0, Total=240 [2020-12-17 23:52:32,234 INFO L78 Accepts]: Start accepts. Automaton has 14424 states and 49228 transitions. Word has length 44 [2020-12-17 23:52:32,236 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-17 23:52:32,236 INFO L481 AbstractCegarLoop]: Abstraction has 14424 states and 49228 transitions. [2020-12-17 23:52:32,237 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) [2020-12-17 23:52:32,237 INFO L276 IsEmpty]: Start isEmpty. Operand 14424 states and 49228 transitions. [2020-12-17 23:52:32,261 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2020-12-17 23:52:32,261 INFO L496 BasicCegarLoop]: Found error trace [2020-12-17 23:52:32,261 INFO L504 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-17 23:52:32,261 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-12-17 23:52:32,262 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-17 23:52:32,263 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-17 23:52:32,263 INFO L82 PathProgramCache]: Analyzing trace with hash 1389736977, now seen corresponding path program 1 times [2020-12-17 23:52:32,263 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-17 23:52:32,264 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [224020477] [2020-12-17 23:52:32,264 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-17 23:52:32,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-17 23:52:32,565 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-17 23:52:32,565 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [224020477] [2020-12-17 23:52:32,566 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-17 23:52:32,566 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-12-17 23:52:32,566 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1660831094] [2020-12-17 23:52:32,566 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-12-17 23:52:32,567 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-17 23:52:32,568 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-12-17 23:52:32,568 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-12-17 23:52:32,568 INFO L87 Difference]: Start difference. First operand 14424 states and 49228 transitions. Second operand has 7 states, 7 states have (on average 6.714285714285714) internal successors, (47), 7 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) [2020-12-17 23:52:33,213 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-17 23:52:33,214 INFO L93 Difference]: Finished difference Result 26104 states and 87692 transitions. [2020-12-17 23:52:33,214 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-12-17 23:52:33,214 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.714285714285714) internal successors, (47), 7 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 [2020-12-17 23:52:33,215 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-17 23:52:33,216 INFO L763 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=79, Invalid=161, Unknown=0, NotChecked=0, Total=240 [2020-12-17 23:52:33,216 INFO L78 Accepts]: Start accepts. Automaton has 26104 states and 87692 transitions. Word has length 47 [2020-12-17 23:52:33,218 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-17 23:52:33,218 INFO L481 AbstractCegarLoop]: Abstraction has 26104 states and 87692 transitions. [2020-12-17 23:52:33,219 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 6.714285714285714) internal successors, (47), 7 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) [2020-12-17 23:52:33,219 INFO L276 IsEmpty]: Start isEmpty. Operand 26104 states and 87692 transitions. [2020-12-17 23:52:33,268 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2020-12-17 23:52:33,268 INFO L496 BasicCegarLoop]: Found error trace [2020-12-17 23:52:33,268 INFO L504 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-17 23:52:33,268 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-12-17 23:52:33,269 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-17 23:52:33,269 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-17 23:52:33,269 INFO L82 PathProgramCache]: Analyzing trace with hash -1496327244, now seen corresponding path program 1 times [2020-12-17 23:52:33,270 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-17 23:52:33,271 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2112564635] [2020-12-17 23:52:33,271 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-17 23:52:33,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-17 23:52:33,564 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-17 23:52:33,565 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2112564635] [2020-12-17 23:52:33,565 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-17 23:52:33,565 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-12-17 23:52:33,565 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1504471813] [2020-12-17 23:52:33,566 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-17 23:52:33,566 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-17 23:52:33,567 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-17 23:52:33,567 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-12-17 23:52:33,567 INFO L87 Difference]: Start difference. First operand 26104 states and 87692 transitions. Second operand has 6 states, 6 states have (on average 8.166666666666666) internal successors, (49), 6 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-12-17 23:52:33,931 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-17 23:52:33,932 INFO L93 Difference]: Finished difference Result 24976 states and 82117 transitions. [2020-12-17 23:52:33,932 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-12-17 23:52:33,932 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.166666666666666) internal successors, (49), 6 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 49 [2020-12-17 23:52:33,933 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-17 23:52:33,935 INFO L763 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 [2020-12-17 23:52:33,935 INFO L78 Accepts]: Start accepts. Automaton has 24976 states and 82117 transitions. Word has length 49 [2020-12-17 23:52:33,936 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-17 23:52:33,936 INFO L481 AbstractCegarLoop]: Abstraction has 24976 states and 82117 transitions. [2020-12-17 23:52:33,936 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 8.166666666666666) internal successors, (49), 6 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-12-17 23:52:33,936 INFO L276 IsEmpty]: Start isEmpty. Operand 24976 states and 82117 transitions. [2020-12-17 23:52:34,007 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2020-12-17 23:52:34,007 INFO L496 BasicCegarLoop]: Found error trace [2020-12-17 23:52:34,007 INFO L504 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-17 23:52:34,007 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-12-17 23:52:34,008 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-17 23:52:34,008 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-17 23:52:34,008 INFO L82 PathProgramCache]: Analyzing trace with hash 577338396, now seen corresponding path program 1 times [2020-12-17 23:52:34,009 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-17 23:52:34,009 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1895273655] [2020-12-17 23:52:34,009 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-17 23:52:34,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-17 23:52:34,231 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-17 23:52:34,232 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1895273655] [2020-12-17 23:52:34,232 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-17 23:52:34,233 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-12-17 23:52:34,233 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [146559871] [2020-12-17 23:52:34,233 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-12-17 23:52:34,234 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-17 23:52:34,235 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-12-17 23:52:34,235 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-12-17 23:52:34,235 INFO L87 Difference]: Start difference. First operand 24976 states and 82117 transitions. Second operand has 7 states, 7 states have (on average 7.142857142857143) internal successors, (50), 7 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) [2020-12-17 23:52:34,648 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-17 23:52:34,648 INFO L93 Difference]: Finished difference Result 16846 states and 53831 transitions. [2020-12-17 23:52:34,649 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-12-17 23:52:34,649 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.142857142857143) internal successors, (50), 7 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 [2020-12-17 23:52:34,650 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-17 23:52:34,651 INFO L763 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=73, Invalid=137, Unknown=0, NotChecked=0, Total=210 [2020-12-17 23:52:34,651 INFO L78 Accepts]: Start accepts. Automaton has 16846 states and 53831 transitions. Word has length 50 [2020-12-17 23:52:34,653 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-17 23:52:34,654 INFO L481 AbstractCegarLoop]: Abstraction has 16846 states and 53831 transitions. [2020-12-17 23:52:34,654 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 7.142857142857143) internal successors, (50), 7 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) [2020-12-17 23:52:34,654 INFO L276 IsEmpty]: Start isEmpty. Operand 16846 states and 53831 transitions. [2020-12-17 23:52:34,693 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2020-12-17 23:52:34,694 INFO L496 BasicCegarLoop]: Found error trace [2020-12-17 23:52:34,694 INFO L504 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-17 23:52:34,694 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-12-17 23:52:34,695 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-17 23:52:34,695 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-17 23:52:34,698 INFO L82 PathProgramCache]: Analyzing trace with hash -270393692, now seen corresponding path program 1 times [2020-12-17 23:52:34,699 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-17 23:52:34,700 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [358895313] [2020-12-17 23:52:34,700 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-17 23:52:34,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-17 23:52:34,923 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-17 23:52:34,923 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [358895313] [2020-12-17 23:52:34,923 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-17 23:52:34,924 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-12-17 23:52:34,924 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1651352722] [2020-12-17 23:52:34,924 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-12-17 23:52:34,925 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-17 23:52:34,925 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-12-17 23:52:34,925 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-12-17 23:52:34,926 INFO L87 Difference]: Start difference. First operand 16846 states and 53831 transitions. Second operand has 8 states, 8 states have (on average 6.375) internal successors, (51), 8 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) [2020-12-17 23:52:35,387 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-17 23:52:35,387 INFO L93 Difference]: Finished difference Result 11572 states and 36476 transitions. [2020-12-17 23:52:35,390 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-12-17 23:52:35,390 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.375) internal successors, (51), 8 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 [2020-12-17 23:52:35,391 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-17 23:52:35,392 INFO L763 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 57 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=116, Invalid=226, Unknown=0, NotChecked=0, Total=342 [2020-12-17 23:52:35,392 INFO L78 Accepts]: Start accepts. Automaton has 11572 states and 36476 transitions. Word has length 51 [2020-12-17 23:52:35,393 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-17 23:52:35,393 INFO L481 AbstractCegarLoop]: Abstraction has 11572 states and 36476 transitions. [2020-12-17 23:52:35,393 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 6.375) internal successors, (51), 8 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) [2020-12-17 23:52:35,393 INFO L276 IsEmpty]: Start isEmpty. Operand 11572 states and 36476 transitions. [2020-12-17 23:52:35,418 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2020-12-17 23:52:35,418 INFO L496 BasicCegarLoop]: Found error trace [2020-12-17 23:52:35,418 INFO L504 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-17 23:52:35,418 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-12-17 23:52:35,418 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-17 23:52:35,419 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-17 23:52:35,419 INFO L82 PathProgramCache]: Analyzing trace with hash 796083109, now seen corresponding path program 1 times [2020-12-17 23:52:35,420 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-17 23:52:35,420 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1185074004] [2020-12-17 23:52:35,420 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-17 23:52:35,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-17 23:52:35,560 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-17 23:52:35,560 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1185074004] [2020-12-17 23:52:35,560 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-17 23:52:35,561 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-12-17 23:52:35,561 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [96937929] [2020-12-17 23:52:35,561 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-12-17 23:52:35,561 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-17 23:52:35,562 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-12-17 23:52:35,562 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-12-17 23:52:35,562 INFO L87 Difference]: Start difference. First operand 11572 states and 36476 transitions. Second operand has 7 states, 7 states have (on average 7.571428571428571) internal successors, (53), 7 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-12-17 23:52:35,855 WARN L193 SmtUtils]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 23 [2020-12-17 23:52:35,873 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-17 23:52:35,873 INFO L93 Difference]: Finished difference Result 17175 states and 53589 transitions. [2020-12-17 23:52:35,876 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-12-17 23:52:35,876 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.571428571428571) internal successors, (53), 7 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 53 [2020-12-17 23:52:35,877 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-17 23:52:35,877 INFO L763 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2020-12-17 23:52:35,877 INFO L78 Accepts]: Start accepts. Automaton has 17175 states and 53589 transitions. Word has length 53 [2020-12-17 23:52:35,879 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-17 23:52:35,883 INFO L481 AbstractCegarLoop]: Abstraction has 17175 states and 53589 transitions. [2020-12-17 23:52:35,884 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 7.571428571428571) internal successors, (53), 7 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-12-17 23:52:35,884 INFO L276 IsEmpty]: Start isEmpty. Operand 17175 states and 53589 transitions. [2020-12-17 23:52:35,923 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-12-17 23:52:35,930 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-12-17 23:52:35,936 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 17.12 11:52:35 BasicIcfg [2020-12-17 23:52:35,936 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-12-17 23:52:35,940 INFO L168 Benchmark]: Toolchain (without parser) took 8010.30 ms. Allocated memory was 302.0 MB in the beginning and 1.3 GB in the end (delta: 1.0 GB). Free memory was 276.0 MB in the beginning and 1.1 GB in the end (delta: -814.5 MB). Peak memory consumption was 221.6 MB. Max. memory is 16.0 GB. [2020-12-17 23:52:35,946 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 302.0 MB. Free memory is still 271.4 MB. There was no memory consumed. Max. memory is 16.0 GB. [2020-12-17 23:52:35,948 INFO L168 Benchmark]: CACSL2BoogieTranslator took 741.34 ms. Allocated memory is still 302.0 MB. Free memory was 275.7 MB in the beginning and 277.5 MB in the end (delta: -1.8 MB). Peak memory consumption was 33.3 MB. Max. memory is 16.0 GB. [2020-12-17 23:52:35,949 INFO L168 Benchmark]: Boogie Procedure Inliner took 112.80 ms. Allocated memory is still 302.0 MB. Free memory was 277.5 MB in the beginning and 275.4 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2020-12-17 23:52:35,949 INFO L168 Benchmark]: Boogie Preprocessor took 42.02 ms. Allocated memory is still 302.0 MB. Free memory was 275.4 MB in the beginning and 274.0 MB in the end (delta: 1.4 MB). There was no memory consumed. Max. memory is 16.0 GB. [2020-12-17 23:52:35,950 INFO L168 Benchmark]: RCFGBuilder took 700.49 ms. Allocated memory is still 302.0 MB. Free memory was 274.0 MB in the beginning and 249.1 MB in the end (delta: 24.9 MB). Peak memory consumption was 25.2 MB. Max. memory is 16.0 GB. [2020-12-17 23:52:35,950 INFO L168 Benchmark]: TraceAbstraction took 6405.57 ms. Allocated memory was 302.0 MB in the beginning and 1.3 GB in the end (delta: 1.0 GB). Free memory was 249.1 MB in the beginning and 1.1 GB in the end (delta: -841.4 MB). Peak memory consumption was 194.6 MB. Max. memory is 16.0 GB. [2020-12-17 23:52:35,965 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 ms. Allocated memory is still 302.0 MB. Free memory is still 271.4 MB. There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 741.34 ms. Allocated memory is still 302.0 MB. Free memory was 275.7 MB in the beginning and 277.5 MB in the end (delta: -1.8 MB). Peak memory consumption was 33.3 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 112.80 ms. Allocated memory is still 302.0 MB. Free memory was 277.5 MB in the beginning and 275.4 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 42.02 ms. Allocated memory is still 302.0 MB. Free memory was 275.4 MB in the beginning and 274.0 MB in the end (delta: 1.4 MB). There was no memory consumed. Max. memory is 16.0 GB. * RCFGBuilder took 700.49 ms. Allocated memory is still 302.0 MB. Free memory was 274.0 MB in the beginning and 249.1 MB in the end (delta: 24.9 MB). Peak memory consumption was 25.2 MB. Max. memory is 16.0 GB. * TraceAbstraction took 6405.57 ms. Allocated memory was 302.0 MB in the beginning and 1.3 GB in the end (delta: 1.0 GB). Free memory was 249.1 MB in the beginning and 1.1 GB in the end (delta: -841.4 MB). Peak memory consumption was 194.6 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, 76 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 6.2s, OverallIterations: 7, TraceHistogramMax: 1, AutomataDifference: 3.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.7s, HoareTripleCheckerStatistics: 748 SDtfs, 1608 SDslu, 2701 SDs, 0 SdLazy, 339 SolverSat, 86 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 100 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 85 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 154 ImplicationChecksByTransitivity, 1.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=26104occurred in iteration=3, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.2s InterpolantComputationTime, 336 NumberOfCodeBlocks, 336 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 329 ConstructedInterpolants, 0 QuantifiedInterpolants, 43243 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 7 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...