/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/safe028_pso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.2.0-aa1e80b [2020-12-17 23:58:48,802 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-17 23:58:48,805 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-17 23:58:48,840 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-17 23:58:48,840 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-17 23:58:48,842 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-17 23:58:48,844 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-17 23:58:48,846 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-17 23:58:48,848 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-17 23:58:48,850 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-17 23:58:48,851 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-17 23:58:48,852 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-17 23:58:48,853 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-17 23:58:48,854 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-17 23:58:48,856 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-17 23:58:48,857 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-17 23:58:48,858 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-17 23:58:48,859 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-17 23:58:48,861 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-17 23:58:48,864 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-17 23:58:48,866 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-17 23:58:48,867 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-17 23:58:48,869 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-17 23:58:48,870 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-17 23:58:48,873 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-17 23:58:48,874 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-17 23:58:48,874 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-17 23:58:48,875 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-17 23:58:48,876 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-17 23:58:48,879 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-17 23:58:48,880 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-17 23:58:48,881 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-17 23:58:48,884 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-17 23:58:48,886 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-17 23:58:48,888 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-17 23:58:48,888 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-17 23:58:48,890 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-17 23:58:48,890 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-17 23:58:48,891 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-17 23:58:48,892 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-17 23:58:48,893 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-17 23:58:48,895 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 23:58:48,953 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-17 23:58:48,953 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-17 23:58:48,958 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-17 23:58:48,958 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-17 23:58:48,958 INFO L138 SettingsManager]: * Use SBE=true [2020-12-17 23:58:48,959 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-17 23:58:48,959 INFO L138 SettingsManager]: * sizeof long=4 [2020-12-17 23:58:48,959 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-17 23:58:48,959 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-12-17 23:58:48,959 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-17 23:58:48,960 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-17 23:58:48,960 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-17 23:58:48,961 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-17 23:58:48,961 INFO L138 SettingsManager]: * sizeof long double=12 [2020-12-17 23:58:48,961 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-17 23:58:48,961 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-17 23:58:48,962 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-17 23:58:48,962 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-17 23:58:48,962 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-17 23:58:48,962 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-12-17 23:58:48,962 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-17 23:58:48,963 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-17 23:58:48,963 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-17 23:58:48,963 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-17 23:58:48,963 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-17 23:58:48,964 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-12-17 23:58:48,964 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-17 23:58:48,964 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2020-12-17 23:58:48,965 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-17 23:58:48,965 INFO L138 SettingsManager]: * Remove dead ends from automaton=false [2020-12-17 23:58:48,965 INFO L138 SettingsManager]: * Minimization of abstraction=NONE [2020-12-17 23:58:48,966 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-12-17 23:58:49,377 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-17 23:58:49,413 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-17 23:58:49,416 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-17 23:58:49,418 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-17 23:58:49,421 INFO L275 PluginConnector]: CDTParser initialized [2020-12-17 23:58:49,422 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe028_pso.oepc.i [2020-12-17 23:58:49,515 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a8c6037a8/4fa136bd9e7043acb7b482198d615346/FLAG2b9eba540 [2020-12-17 23:58:50,224 INFO L306 CDTParser]: Found 1 translation units. [2020-12-17 23:58:50,224 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe028_pso.oepc.i [2020-12-17 23:58:50,263 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a8c6037a8/4fa136bd9e7043acb7b482198d615346/FLAG2b9eba540 [2020-12-17 23:58:50,533 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a8c6037a8/4fa136bd9e7043acb7b482198d615346 [2020-12-17 23:58:50,536 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-17 23:58:50,540 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-12-17 23:58:50,542 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-17 23:58:50,542 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-17 23:58:50,546 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-17 23:58:50,547 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.12 11:58:50" (1/1) ... [2020-12-17 23:58:50,551 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@770313a0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 11:58:50, skipping insertion in model container [2020-12-17 23:58:50,552 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.12 11:58:50" (1/1) ... [2020-12-17 23:58:50,560 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-17 23:58:50,605 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-17 23:58:51,057 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-17 23:58:51,074 INFO L203 MainTranslator]: Completed pre-run [2020-12-17 23:58:51,169 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-17 23:58:51,266 INFO L208 MainTranslator]: Completed translation [2020-12-17 23:58:51,266 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 11:58:51 WrapperNode [2020-12-17 23:58:51,267 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-17 23:58:51,268 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-17 23:58:51,268 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-17 23:58:51,268 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-17 23:58:51,278 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 11:58:51" (1/1) ... [2020-12-17 23:58:51,295 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 11:58:51" (1/1) ... [2020-12-17 23:58:51,320 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-17 23:58:51,321 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-17 23:58:51,321 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-17 23:58:51,321 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-17 23:58:51,351 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 11:58:51" (1/1) ... [2020-12-17 23:58:51,352 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 11:58:51" (1/1) ... [2020-12-17 23:58:51,371 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 11:58:51" (1/1) ... [2020-12-17 23:58:51,371 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 11:58:51" (1/1) ... [2020-12-17 23:58:51,386 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 11:58:51" (1/1) ... [2020-12-17 23:58:51,393 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 11:58:51" (1/1) ... [2020-12-17 23:58:51,396 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 11:58:51" (1/1) ... [2020-12-17 23:58:51,401 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-17 23:58:51,402 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-17 23:58:51,402 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-17 23:58:51,402 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-17 23:58:51,403 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 11:58:51" (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 23:58:51,490 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-12-17 23:58:51,490 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-12-17 23:58:51,491 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-17 23:58:51,491 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-12-17 23:58:51,491 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-12-17 23:58:51,491 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-12-17 23:58:51,491 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-12-17 23:58:51,492 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-12-17 23:58:51,492 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-12-17 23:58:51,492 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-12-17 23:58:51,492 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-17 23:58:51,492 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-12-17 23:58:51,493 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-17 23:58:51,493 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-17 23:58:51,495 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 23:58:52,049 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-17 23:58:52,049 INFO L298 CfgBuilder]: Removed 10 assume(true) statements. [2020-12-17 23:58:52,053 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.12 11:58:52 BoogieIcfgContainer [2020-12-17 23:58:52,055 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-17 23:58:52,057 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-17 23:58:52,057 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-17 23:58:52,061 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-17 23:58:52,062 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.12 11:58:50" (1/3) ... [2020-12-17 23:58:52,062 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@559fee45 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.12 11:58:52, skipping insertion in model container [2020-12-17 23:58:52,063 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 11:58:51" (2/3) ... [2020-12-17 23:58:52,063 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@559fee45 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.12 11:58:52, skipping insertion in model container [2020-12-17 23:58:52,063 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.12 11:58:52" (3/3) ... [2020-12-17 23:58:52,065 INFO L111 eAbstractionObserver]: Analyzing ICFG safe028_pso.oepc.i [2020-12-17 23:58:52,083 WARN L168 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-12-17 23:58:52,083 INFO L179 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-17 23:58:52,087 INFO L191 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-12-17 23:58:52,088 INFO L351 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-12-17 23:58:52,133 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:58:52,133 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:58:52,133 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:58:52,133 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:58:52,134 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:58:52,134 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:58:52,134 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:58:52,135 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:58:52,135 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:58:52,135 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:58:52,135 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:58:52,136 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:58:52,137 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:58:52,137 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:58:52,137 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:58:52,137 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:58:52,138 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:58:52,138 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:58:52,138 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:58:52,138 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:58:52,138 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:58:52,139 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:58:52,139 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:58:52,140 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:58:52,140 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:58:52,140 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:58:52,141 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:58:52,141 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:58:52,143 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:58:52,143 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:58:52,143 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:58:52,143 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:58:52,144 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:58:52,145 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:58:52,149 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:58:52,149 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:58:52,157 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:58:52,158 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:58:52,158 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:58:52,159 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:58:52,164 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:58:52,164 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:58:52,164 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:58:52,164 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:58:52,168 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:58:52,168 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:58:52,168 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:58:52,169 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:58:52,171 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2020-12-17 23:58:52,184 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-12-17 23:58:52,223 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-17 23:58:52,223 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-17 23:58:52,223 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-17 23:58:52,223 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-17 23:58:52,223 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-17 23:58:52,223 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-17 23:58:52,223 INFO L383 AbstractCegarLoop]: Minimize is NONE [2020-12-17 23:58:52,223 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-17 23:58:52,239 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 85 places, 78 transitions, 171 flow [2020-12-17 23:58:52,947 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 23:58:52,985 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 23:58:53,031 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2020-12-17 23:58:53,031 INFO L496 BasicCegarLoop]: Found error trace [2020-12-17 23:58:53,032 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 23:58:53,033 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-17 23:58:53,039 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-17 23:58:53,040 INFO L82 PathProgramCache]: Analyzing trace with hash 122866376, now seen corresponding path program 1 times [2020-12-17 23:58:53,048 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-17 23:58:53,049 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1067339824] [2020-12-17 23:58:53,049 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-17 23:58:53,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-17 23:58:53,510 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 23:58:53,511 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1067339824] [2020-12-17 23:58:53,512 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-17 23:58:53,513 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-12-17 23:58:53,514 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1449528405] [2020-12-17 23:58:53,519 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-17 23:58:53,520 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-17 23:58:53,535 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-17 23:58:53,536 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-12-17 23:58:53,568 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 23:58:54,004 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-17 23:58:54,004 INFO L93 Difference]: Finished difference Result 10464 states and 36160 transitions. [2020-12-17 23:58:54,005 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-12-17 23:58:54,007 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 23:58:54,007 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-17 23:58:54,009 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 23:58:54,009 INFO L78 Accepts]: Start accepts. Automaton has 10464 states and 36160 transitions. Word has length 42 [2020-12-17 23:58:54,011 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-17 23:58:54,012 INFO L481 AbstractCegarLoop]: Abstraction has 10464 states and 36160 transitions. [2020-12-17 23:58:54,012 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 23:58:54,012 INFO L276 IsEmpty]: Start isEmpty. Operand 10464 states and 36160 transitions. [2020-12-17 23:58:54,030 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2020-12-17 23:58:54,030 INFO L496 BasicCegarLoop]: Found error trace [2020-12-17 23:58:54,030 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 23:58:54,031 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-17 23:58:54,031 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-17 23:58:54,032 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-17 23:58:54,032 INFO L82 PathProgramCache]: Analyzing trace with hash -1872350423, now seen corresponding path program 1 times [2020-12-17 23:58:54,032 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-17 23:58:54,033 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [228790899] [2020-12-17 23:58:54,033 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-17 23:58:54,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-17 23:58:54,232 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 23:58:54,232 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [228790899] [2020-12-17 23:58:54,233 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-17 23:58:54,233 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-12-17 23:58:54,233 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1583492614] [2020-12-17 23:58:54,236 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-12-17 23:58:54,236 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-17 23:58:54,238 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-12-17 23:58:54,239 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-12-17 23:58:54,239 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 23:58:54,781 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-17 23:58:54,781 INFO L93 Difference]: Finished difference Result 15224 states and 52028 transitions. [2020-12-17 23:58:54,783 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-12-17 23:58:54,784 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 23:58:54,784 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-17 23:58:54,786 INFO L763 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=79, Invalid=161, Unknown=0, NotChecked=0, Total=240 [2020-12-17 23:58:54,787 INFO L78 Accepts]: Start accepts. Automaton has 15224 states and 52028 transitions. Word has length 44 [2020-12-17 23:58:54,788 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-17 23:58:54,788 INFO L481 AbstractCegarLoop]: Abstraction has 15224 states and 52028 transitions. [2020-12-17 23:58:54,788 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 23:58:54,788 INFO L276 IsEmpty]: Start isEmpty. Operand 15224 states and 52028 transitions. [2020-12-17 23:58:54,811 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2020-12-17 23:58:54,811 INFO L496 BasicCegarLoop]: Found error trace [2020-12-17 23:58:54,812 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] [2020-12-17 23:58:54,812 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-12-17 23:58:54,812 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-17 23:58:54,813 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-17 23:58:54,813 INFO L82 PathProgramCache]: Analyzing trace with hash 799772232, now seen corresponding path program 1 times [2020-12-17 23:58:54,814 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-17 23:58:54,815 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [36510285] [2020-12-17 23:58:54,815 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-17 23:58:54,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-17 23:58:54,957 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 23:58:54,958 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [36510285] [2020-12-17 23:58:54,958 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-17 23:58:54,958 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-12-17 23:58:54,959 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [600060118] [2020-12-17 23:58:54,959 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-17 23:58:54,959 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-17 23:58:54,960 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-17 23:58:54,960 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-12-17 23:58:54,961 INFO L87 Difference]: Start difference. First operand 15224 states and 52028 transitions. Second operand has 6 states, 6 states have (on average 7.666666666666667) internal successors, (46), 6 states have internal predecessors, (46), 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 23:58:55,290 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-17 23:58:55,290 INFO L93 Difference]: Finished difference Result 14282 states and 47614 transitions. [2020-12-17 23:58:55,291 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-12-17 23:58:55,292 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.666666666666667) internal successors, (46), 6 states have internal predecessors, (46), 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 46 [2020-12-17 23:58:55,292 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-17 23:58:55,293 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 23:58:55,293 INFO L78 Accepts]: Start accepts. Automaton has 14282 states and 47614 transitions. Word has length 46 [2020-12-17 23:58:55,293 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-17 23:58:55,293 INFO L481 AbstractCegarLoop]: Abstraction has 14282 states and 47614 transitions. [2020-12-17 23:58:55,294 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 7.666666666666667) internal successors, (46), 6 states have internal predecessors, (46), 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 23:58:55,294 INFO L276 IsEmpty]: Start isEmpty. Operand 14282 states and 47614 transitions. [2020-12-17 23:58:55,318 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2020-12-17 23:58:55,318 INFO L496 BasicCegarLoop]: Found error trace [2020-12-17 23:58:55,319 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 23:58:55,319 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-12-17 23:58:55,319 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-17 23:58:55,320 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-17 23:58:55,320 INFO L82 PathProgramCache]: Analyzing trace with hash 1590494414, now seen corresponding path program 1 times [2020-12-17 23:58:55,320 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-17 23:58:55,321 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2016664960] [2020-12-17 23:58:55,321 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-17 23:58:55,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-17 23:58:55,487 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 23:58:55,487 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2016664960] [2020-12-17 23:58:55,487 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-17 23:58:55,487 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-12-17 23:58:55,488 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1297562805] [2020-12-17 23:58:55,488 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-12-17 23:58:55,488 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-17 23:58:55,489 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-12-17 23:58:55,489 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-12-17 23:58:55,490 INFO L87 Difference]: Start difference. First operand 14282 states and 47614 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 23:58:55,860 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-17 23:58:55,860 INFO L93 Difference]: Finished difference Result 10454 states and 33749 transitions. [2020-12-17 23:58:55,861 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-12-17 23:58:55,861 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 23:58:55,861 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-17 23:58:55,862 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 23:58:55,862 INFO L78 Accepts]: Start accepts. Automaton has 10454 states and 33749 transitions. Word has length 47 [2020-12-17 23:58:55,862 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-17 23:58:55,863 INFO L481 AbstractCegarLoop]: Abstraction has 10454 states and 33749 transitions. [2020-12-17 23:58:55,863 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 23:58:55,863 INFO L276 IsEmpty]: Start isEmpty. Operand 10454 states and 33749 transitions. [2020-12-17 23:58:55,951 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2020-12-17 23:58:55,952 INFO L496 BasicCegarLoop]: Found error trace [2020-12-17 23:58:55,952 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 23:58:55,952 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-12-17 23:58:55,952 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-17 23:58:55,953 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-17 23:58:55,953 INFO L82 PathProgramCache]: Analyzing trace with hash 1762956271, now seen corresponding path program 1 times [2020-12-17 23:58:55,953 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-17 23:58:55,954 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [71577539] [2020-12-17 23:58:55,954 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-17 23:58:55,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-17 23:58:56,107 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 23:58:56,107 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [71577539] [2020-12-17 23:58:56,108 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-17 23:58:56,108 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-12-17 23:58:56,108 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [285080352] [2020-12-17 23:58:56,109 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-12-17 23:58:56,109 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-17 23:58:56,109 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-12-17 23:58:56,110 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-12-17 23:58:56,110 INFO L87 Difference]: Start difference. First operand 10454 states and 33749 transitions. Second operand has 8 states, 8 states have (on average 6.125) internal successors, (49), 8 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 23:58:56,673 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-17 23:58:56,673 INFO L93 Difference]: Finished difference Result 7412 states and 23636 transitions. [2020-12-17 23:58:56,674 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-12-17 23:58:56,674 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.125) internal successors, (49), 8 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 23:58:56,675 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-17 23:58:56,675 INFO L763 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 57 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=116, Invalid=226, Unknown=0, NotChecked=0, Total=342 [2020-12-17 23:58:56,675 INFO L78 Accepts]: Start accepts. Automaton has 7412 states and 23636 transitions. Word has length 49 [2020-12-17 23:58:56,676 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-17 23:58:56,676 INFO L481 AbstractCegarLoop]: Abstraction has 7412 states and 23636 transitions. [2020-12-17 23:58:56,676 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 6.125) internal successors, (49), 8 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 23:58:56,676 INFO L276 IsEmpty]: Start isEmpty. Operand 7412 states and 23636 transitions. [2020-12-17 23:58:56,744 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2020-12-17 23:58:56,745 INFO L496 BasicCegarLoop]: Found error trace [2020-12-17 23:58:56,745 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 23:58:56,745 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-12-17 23:58:56,746 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-17 23:58:56,746 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-17 23:58:56,747 INFO L82 PathProgramCache]: Analyzing trace with hash 1204892077, now seen corresponding path program 1 times [2020-12-17 23:58:56,752 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-17 23:58:56,752 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1248677216] [2020-12-17 23:58:56,752 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-17 23:58:56,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-17 23:58:56,914 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 23:58:56,914 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1248677216] [2020-12-17 23:58:56,914 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-17 23:58:56,914 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-12-17 23:58:56,915 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [165002295] [2020-12-17 23:58:56,915 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-12-17 23:58:56,915 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-17 23:58:56,916 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-12-17 23:58:56,916 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-12-17 23:58:56,917 INFO L87 Difference]: Start difference. First operand 7412 states and 23636 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 23:58:57,076 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-17 23:58:57,077 INFO L93 Difference]: Finished difference Result 11572 states and 36476 transitions. [2020-12-17 23:58:57,077 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-12-17 23:58:57,078 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 23:58:57,078 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-17 23:58:57,079 INFO L763 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 [2020-12-17 23:58:57,079 INFO L78 Accepts]: Start accepts. Automaton has 11572 states and 36476 transitions. Word has length 53 [2020-12-17 23:58:57,080 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-17 23:58:57,080 INFO L481 AbstractCegarLoop]: Abstraction has 11572 states and 36476 transitions. [2020-12-17 23:58:57,080 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 23:58:57,080 INFO L276 IsEmpty]: Start isEmpty. Operand 11572 states and 36476 transitions. [2020-12-17 23:58:57,105 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2020-12-17 23:58:57,105 INFO L496 BasicCegarLoop]: Found error trace [2020-12-17 23:58:57,105 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 23:58:57,106 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-12-17 23:58:57,106 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-17 23:58:57,107 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-17 23:58:57,107 INFO L82 PathProgramCache]: Analyzing trace with hash 1710619263, now seen corresponding path program 2 times [2020-12-17 23:58:57,108 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-17 23:58:57,108 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1238734057] [2020-12-17 23:58:57,108 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-17 23:58:57,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-17 23:58:57,213 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 23:58:57,213 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1238734057] [2020-12-17 23:58:57,214 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-17 23:58:57,214 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-12-17 23:58:57,214 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1651464572] [2020-12-17 23:58:57,215 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-12-17 23:58:57,215 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-17 23:58:57,215 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-12-17 23:58:57,216 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-12-17 23:58:57,216 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 23:58:57,486 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-17 23:58:57,486 INFO L93 Difference]: Finished difference Result 17175 states and 53589 transitions. [2020-12-17 23:58:57,487 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-12-17 23:58:57,487 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 23:58:57,488 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-17 23:58:57,488 INFO L763 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2020-12-17 23:58:57,488 INFO L78 Accepts]: Start accepts. Automaton has 17175 states and 53589 transitions. Word has length 53 [2020-12-17 23:58:57,489 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-17 23:58:57,489 INFO L481 AbstractCegarLoop]: Abstraction has 17175 states and 53589 transitions. [2020-12-17 23:58:57,489 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 23:58:57,489 INFO L276 IsEmpty]: Start isEmpty. Operand 17175 states and 53589 transitions. [2020-12-17 23:58:57,527 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-12-17 23:58:57,527 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-12-17 23:58:57,532 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 17.12 11:58:57 BasicIcfg [2020-12-17 23:58:57,532 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-12-17 23:58:57,535 INFO L168 Benchmark]: Toolchain (without parser) took 6995.63 ms. Allocated memory was 302.0 MB in the beginning and 713.0 MB in the end (delta: 411.0 MB). Free memory was 276.7 MB in the beginning and 508.6 MB in the end (delta: -231.9 MB). Peak memory consumption was 182.0 MB. Max. memory is 16.0 GB. [2020-12-17 23:58:57,536 INFO L168 Benchmark]: CDTParser took 0.26 ms. Allocated memory is still 302.0 MB. Free memory was 271.9 MB in the beginning and 271.7 MB in the end (delta: 153.9 kB). There was no memory consumed. Max. memory is 16.0 GB. [2020-12-17 23:58:57,537 INFO L168 Benchmark]: CACSL2BoogieTranslator took 725.34 ms. Allocated memory is still 302.0 MB. Free memory was 276.4 MB in the beginning and 245.0 MB in the end (delta: 31.4 MB). Peak memory consumption was 31.5 MB. Max. memory is 16.0 GB. [2020-12-17 23:58:57,537 INFO L168 Benchmark]: Boogie Procedure Inliner took 51.84 ms. Allocated memory is still 302.0 MB. Free memory was 245.0 MB in the beginning and 243.0 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2020-12-17 23:58:57,538 INFO L168 Benchmark]: Boogie Preprocessor took 80.54 ms. Allocated memory is still 302.0 MB. Free memory was 243.0 MB in the beginning and 284.7 MB in the end (delta: -41.7 MB). Peak memory consumption was 4.3 MB. Max. memory is 16.0 GB. [2020-12-17 23:58:57,539 INFO L168 Benchmark]: RCFGBuilder took 653.24 ms. Allocated memory is still 302.0 MB. Free memory was 284.6 MB in the beginning and 260.5 MB in the end (delta: 24.1 MB). Peak memory consumption was 23.1 MB. Max. memory is 16.0 GB. [2020-12-17 23:58:57,540 INFO L168 Benchmark]: TraceAbstraction took 5475.48 ms. Allocated memory was 302.0 MB in the beginning and 713.0 MB in the end (delta: 411.0 MB). Free memory was 260.5 MB in the beginning and 508.6 MB in the end (delta: -248.1 MB). Peak memory consumption was 165.1 MB. Max. memory is 16.0 GB. [2020-12-17 23:58:57,544 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26 ms. Allocated memory is still 302.0 MB. Free memory was 271.9 MB in the beginning and 271.7 MB in the end (delta: 153.9 kB). There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 725.34 ms. Allocated memory is still 302.0 MB. Free memory was 276.4 MB in the beginning and 245.0 MB in the end (delta: 31.4 MB). Peak memory consumption was 31.5 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 51.84 ms. Allocated memory is still 302.0 MB. Free memory was 245.0 MB in the beginning and 243.0 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 80.54 ms. Allocated memory is still 302.0 MB. Free memory was 243.0 MB in the beginning and 284.7 MB in the end (delta: -41.7 MB). Peak memory consumption was 4.3 MB. Max. memory is 16.0 GB. * RCFGBuilder took 653.24 ms. Allocated memory is still 302.0 MB. Free memory was 284.6 MB in the beginning and 260.5 MB in the end (delta: 24.1 MB). Peak memory consumption was 23.1 MB. Max. memory is 16.0 GB. * TraceAbstraction took 5475.48 ms. Allocated memory was 302.0 MB in the beginning and 713.0 MB in the end (delta: 411.0 MB). Free memory was 260.5 MB in the beginning and 508.6 MB in the end (delta: -248.1 MB). Peak memory consumption was 165.1 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: 5.3s, OverallIterations: 7, TraceHistogramMax: 1, AutomataDifference: 2.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.7s, HoareTripleCheckerStatistics: 758 SDtfs, 1435 SDslu, 2769 SDs, 0 SdLazy, 318 SolverSat, 83 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 95 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 80 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 125 ImplicationChecksByTransitivity, 1.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=17175occurred in iteration=7, 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, 0.9s InterpolantComputationTime, 334 NumberOfCodeBlocks, 334 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 327 ConstructedInterpolants, 0 QuantifiedInterpolants, 41295 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...