/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/safe008_tso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.2.0-e5469eb [2021-01-20 21:11:01,720 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-01-20 21:11:01,723 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-01-20 21:11:01,766 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-01-20 21:11:01,767 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-01-20 21:11:01,769 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-01-20 21:11:01,771 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-01-20 21:11:01,773 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-01-20 21:11:01,776 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-01-20 21:11:01,777 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-01-20 21:11:01,779 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-01-20 21:11:01,780 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-01-20 21:11:01,781 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-01-20 21:11:01,782 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-01-20 21:11:01,784 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-01-20 21:11:01,785 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-01-20 21:11:01,787 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-01-20 21:11:01,788 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-01-20 21:11:01,790 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-01-20 21:11:01,793 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-01-20 21:11:01,795 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-01-20 21:11:01,797 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-01-20 21:11:01,799 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-01-20 21:11:01,800 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-01-20 21:11:01,804 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-01-20 21:11:01,804 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-01-20 21:11:01,805 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-01-20 21:11:01,806 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-01-20 21:11:01,807 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-01-20 21:11:01,808 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-01-20 21:11:01,809 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-01-20 21:11:01,810 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-01-20 21:11:01,811 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-01-20 21:11:01,812 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-01-20 21:11:01,814 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-01-20 21:11:01,814 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-01-20 21:11:01,815 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-01-20 21:11:01,816 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-01-20 21:11:01,816 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-01-20 21:11:01,817 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-01-20 21:11:01,818 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-01-20 21:11:01,820 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 [2021-01-20 21:11:01,850 INFO L113 SettingsManager]: Loading preferences was successful [2021-01-20 21:11:01,850 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-01-20 21:11:01,852 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-01-20 21:11:01,852 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-01-20 21:11:01,853 INFO L138 SettingsManager]: * Use SBE=true [2021-01-20 21:11:01,853 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-01-20 21:11:01,853 INFO L138 SettingsManager]: * sizeof long=4 [2021-01-20 21:11:01,854 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-01-20 21:11:01,854 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-01-20 21:11:01,855 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-01-20 21:11:01,855 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-01-20 21:11:01,855 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-01-20 21:11:01,856 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-01-20 21:11:01,856 INFO L138 SettingsManager]: * sizeof long double=12 [2021-01-20 21:11:01,856 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-01-20 21:11:01,857 INFO L138 SettingsManager]: * Use constant arrays=true [2021-01-20 21:11:01,857 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-01-20 21:11:01,857 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-01-20 21:11:01,858 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-01-20 21:11:01,858 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-01-20 21:11:01,858 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-01-20 21:11:01,859 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-01-20 21:11:01,859 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-01-20 21:11:01,859 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-01-20 21:11:01,860 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-01-20 21:11:01,860 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-01-20 21:11:01,860 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-01-20 21:11:01,861 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-01-20 21:11:01,861 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-01-20 21:11:01,861 INFO L138 SettingsManager]: * Remove dead ends from automaton=false [2021-01-20 21:11:01,862 INFO L138 SettingsManager]: * Minimization of abstraction=NONE [2021-01-20 21:11:01,862 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-01-20 21:11:02,336 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-01-20 21:11:02,372 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-01-20 21:11:02,375 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-01-20 21:11:02,377 INFO L271 PluginConnector]: Initializing CDTParser... [2021-01-20 21:11:02,379 INFO L275 PluginConnector]: CDTParser initialized [2021-01-20 21:11:02,381 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe008_tso.opt.i [2021-01-20 21:11:02,478 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f329f1ec5/e59848c89b9f4db8b029d0db9f97d782/FLAG9ddc50061 [2021-01-20 21:11:03,221 INFO L306 CDTParser]: Found 1 translation units. [2021-01-20 21:11:03,221 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe008_tso.opt.i [2021-01-20 21:11:03,240 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f329f1ec5/e59848c89b9f4db8b029d0db9f97d782/FLAG9ddc50061 [2021-01-20 21:11:03,508 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f329f1ec5/e59848c89b9f4db8b029d0db9f97d782 [2021-01-20 21:11:03,510 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-01-20 21:11:03,513 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-01-20 21:11:03,516 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-01-20 21:11:03,516 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-01-20 21:11:03,520 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-01-20 21:11:03,521 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.01 09:11:03" (1/1) ... [2021-01-20 21:11:03,525 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@9297125 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 09:11:03, skipping insertion in model container [2021-01-20 21:11:03,525 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.01 09:11:03" (1/1) ... [2021-01-20 21:11:03,538 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-01-20 21:11:03,598 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-01-20 21:11:03,925 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-01-20 21:11:03,936 INFO L203 MainTranslator]: Completed pre-run [2021-01-20 21:11:03,990 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-01-20 21:11:04,112 INFO L208 MainTranslator]: Completed translation [2021-01-20 21:11:04,112 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 09:11:04 WrapperNode [2021-01-20 21:11:04,113 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-01-20 21:11:04,114 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-01-20 21:11:04,114 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-01-20 21:11:04,114 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-01-20 21:11:04,134 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 09:11:04" (1/1) ... [2021-01-20 21:11:04,153 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 09:11:04" (1/1) ... [2021-01-20 21:11:04,185 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-01-20 21:11:04,186 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-01-20 21:11:04,186 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-01-20 21:11:04,187 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-01-20 21:11:04,201 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 09:11:04" (1/1) ... [2021-01-20 21:11:04,202 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 09:11:04" (1/1) ... [2021-01-20 21:11:04,206 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 09:11:04" (1/1) ... [2021-01-20 21:11:04,206 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 09:11:04" (1/1) ... [2021-01-20 21:11:04,212 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 09:11:04" (1/1) ... [2021-01-20 21:11:04,215 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 09:11:04" (1/1) ... [2021-01-20 21:11:04,217 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 09:11:04" (1/1) ... [2021-01-20 21:11:04,221 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-01-20 21:11:04,222 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-01-20 21:11:04,222 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-01-20 21:11:04,222 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-01-20 21:11:04,223 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 09:11:04" (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 [2021-01-20 21:11:04,324 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-01-20 21:11:04,324 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-01-20 21:11:04,325 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-01-20 21:11:04,325 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-01-20 21:11:04,325 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2021-01-20 21:11:04,325 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2021-01-20 21:11:04,325 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2021-01-20 21:11:04,326 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2021-01-20 21:11:04,326 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2021-01-20 21:11:04,326 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2021-01-20 21:11:04,326 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-01-20 21:11:04,326 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-01-20 21:11:04,326 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-01-20 21:11:04,327 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-01-20 21:11:04,328 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-01-20 21:11:04,884 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-01-20 21:11:04,885 INFO L298 CfgBuilder]: Removed 10 assume(true) statements. [2021-01-20 21:11:04,887 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.01 09:11:04 BoogieIcfgContainer [2021-01-20 21:11:04,887 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-01-20 21:11:04,889 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-01-20 21:11:04,889 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-01-20 21:11:04,892 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-01-20 21:11:04,893 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.01 09:11:03" (1/3) ... [2021-01-20 21:11:04,893 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4fa969dc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.01 09:11:04, skipping insertion in model container [2021-01-20 21:11:04,894 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 09:11:04" (2/3) ... [2021-01-20 21:11:04,894 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4fa969dc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.01 09:11:04, skipping insertion in model container [2021-01-20 21:11:04,894 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.01 09:11:04" (3/3) ... [2021-01-20 21:11:04,896 INFO L111 eAbstractionObserver]: Analyzing ICFG safe008_tso.opt.i [2021-01-20 21:11:04,912 WARN L168 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-01-20 21:11:04,912 INFO L179 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-01-20 21:11:04,917 INFO L191 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-01-20 21:11:04,918 INFO L351 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-01-20 21:11:04,959 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:11:04,960 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:11:04,960 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:11:04,960 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:11:04,960 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:11:04,961 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:11:04,961 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:11:04,961 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:11:04,962 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:11:04,962 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:11:04,962 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:11:04,962 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:11:04,963 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:11:04,963 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:11:04,963 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:11:04,963 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:11:04,964 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:11:04,964 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:11:04,964 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:11:04,964 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:11:04,965 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:11:04,965 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:11:04,965 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:11:04,965 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:11:04,966 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:11:04,966 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:11:04,966 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:11:04,966 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:11:04,967 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:11:04,967 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:11:04,967 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:11:04,967 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:11:04,968 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:11:04,968 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:11:04,968 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:11:04,968 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:11:04,971 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:11:04,971 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:11:04,972 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:11:04,972 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:11:04,980 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:11:04,980 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:11:04,981 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:11:04,981 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:11:04,984 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:11:04,984 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:11:04,985 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:11:04,985 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:11:04,988 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-01-20 21:11:05,001 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2021-01-20 21:11:05,026 INFO L377 AbstractCegarLoop]: Interprodecural is true [2021-01-20 21:11:05,026 INFO L378 AbstractCegarLoop]: Hoare is true [2021-01-20 21:11:05,026 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-01-20 21:11:05,026 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-01-20 21:11:05,027 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-01-20 21:11:05,027 INFO L382 AbstractCegarLoop]: Difference is false [2021-01-20 21:11:05,027 INFO L383 AbstractCegarLoop]: Minimize is NONE [2021-01-20 21:11:05,027 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-01-20 21:11:05,040 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 86 places, 79 transitions, 173 flow [2021-01-20 21:11:06,027 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 9848 states, 9846 states have (on average 3.614665854153971) internal successors, (35590), 9847 states have internal predecessors, (35590), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 21:11:06,070 INFO L276 IsEmpty]: Start isEmpty. Operand has 9848 states, 9846 states have (on average 3.614665854153971) internal successors, (35590), 9847 states have internal predecessors, (35590), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 21:11:06,117 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2021-01-20 21:11:06,117 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 21:11:06,118 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] [2021-01-20 21:11:06,119 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-20 21:11:06,126 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 21:11:06,126 INFO L82 PathProgramCache]: Analyzing trace with hash 143249805, now seen corresponding path program 1 times [2021-01-20 21:11:06,137 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 21:11:06,137 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1768652040] [2021-01-20 21:11:06,137 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 21:11:06,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 21:11:06,681 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-20 21:11:06,682 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1768652040] [2021-01-20 21:11:06,683 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 21:11:06,685 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-01-20 21:11:06,688 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [331169003] [2021-01-20 21:11:06,699 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-01-20 21:11:06,699 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 21:11:06,713 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-01-20 21:11:06,714 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-01-20 21:11:06,734 INFO L87 Difference]: Start difference. First operand has 9848 states, 9846 states have (on average 3.614665854153971) internal successors, (35590), 9847 states have internal predecessors, (35590), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 6 states, 6 states have (on average 7.0) internal successors, (42), 6 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 21:11:07,123 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 21:11:07,124 INFO L93 Difference]: Finished difference Result 12200 states and 42464 transitions. [2021-01-20 21:11:07,124 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-01-20 21:11:07,126 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 [2021-01-20 21:11:07,127 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 21:11:07,130 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2021-01-20 21:11:07,130 INFO L78 Accepts]: Start accepts. Automaton has 12200 states and 42464 transitions. Word has length 42 [2021-01-20 21:11:07,132 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 21:11:07,132 INFO L481 AbstractCegarLoop]: Abstraction has 12200 states and 42464 transitions. [2021-01-20 21:11:07,133 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) [2021-01-20 21:11:07,133 INFO L276 IsEmpty]: Start isEmpty. Operand 12200 states and 42464 transitions. [2021-01-20 21:11:07,158 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2021-01-20 21:11:07,158 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 21:11:07,159 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] [2021-01-20 21:11:07,160 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-01-20 21:11:07,160 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-20 21:11:07,164 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 21:11:07,165 INFO L82 PathProgramCache]: Analyzing trace with hash -521439444, now seen corresponding path program 1 times [2021-01-20 21:11:07,168 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 21:11:07,169 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [783887907] [2021-01-20 21:11:07,169 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 21:11:07,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 21:11:07,375 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-20 21:11:07,375 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [783887907] [2021-01-20 21:11:07,376 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 21:11:07,376 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-01-20 21:11:07,376 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [303825276] [2021-01-20 21:11:07,378 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-01-20 21:11:07,378 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 21:11:07,379 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-01-20 21:11:07,379 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-01-20 21:11:07,380 INFO L87 Difference]: Start difference. First operand 12200 states and 42464 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) [2021-01-20 21:11:08,070 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 21:11:08,071 INFO L93 Difference]: Finished difference Result 16820 states and 57820 transitions. [2021-01-20 21:11:08,071 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-01-20 21:11:08,072 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 [2021-01-20 21:11:08,072 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 21:11:08,073 INFO L769 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 [2021-01-20 21:11:08,073 INFO L78 Accepts]: Start accepts. Automaton has 16820 states and 57820 transitions. Word has length 44 [2021-01-20 21:11:08,074 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 21:11:08,074 INFO L481 AbstractCegarLoop]: Abstraction has 16820 states and 57820 transitions. [2021-01-20 21:11:08,074 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) [2021-01-20 21:11:08,074 INFO L276 IsEmpty]: Start isEmpty. Operand 16820 states and 57820 transitions. [2021-01-20 21:11:08,098 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2021-01-20 21:11:08,098 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 21:11:08,099 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] [2021-01-20 21:11:08,099 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-01-20 21:11:08,099 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-20 21:11:08,100 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 21:11:08,100 INFO L82 PathProgramCache]: Analyzing trace with hash -1701093113, now seen corresponding path program 1 times [2021-01-20 21:11:08,100 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 21:11:08,100 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1223849798] [2021-01-20 21:11:08,101 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 21:11:08,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 21:11:08,295 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-20 21:11:08,296 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1223849798] [2021-01-20 21:11:08,296 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 21:11:08,296 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-01-20 21:11:08,297 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [727359857] [2021-01-20 21:11:08,297 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-01-20 21:11:08,297 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 21:11:08,298 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-01-20 21:11:08,298 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-01-20 21:11:08,298 INFO L87 Difference]: Start difference. First operand 16820 states and 57820 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) [2021-01-20 21:11:08,942 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 21:11:08,943 INFO L93 Difference]: Finished difference Result 28500 states and 96204 transitions. [2021-01-20 21:11:08,943 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-01-20 21:11:08,943 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 [2021-01-20 21:11:08,944 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 21:11:08,944 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=79, Invalid=161, Unknown=0, NotChecked=0, Total=240 [2021-01-20 21:11:08,945 INFO L78 Accepts]: Start accepts. Automaton has 28500 states and 96204 transitions. Word has length 47 [2021-01-20 21:11:08,945 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 21:11:08,945 INFO L481 AbstractCegarLoop]: Abstraction has 28500 states and 96204 transitions. [2021-01-20 21:11:08,945 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) [2021-01-20 21:11:08,946 INFO L276 IsEmpty]: Start isEmpty. Operand 28500 states and 96204 transitions. [2021-01-20 21:11:09,011 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2021-01-20 21:11:09,012 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 21:11:09,012 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] [2021-01-20 21:11:09,012 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-01-20 21:11:09,012 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-20 21:11:09,014 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 21:11:09,014 INFO L82 PathProgramCache]: Analyzing trace with hash 1947575922, now seen corresponding path program 1 times [2021-01-20 21:11:09,014 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 21:11:09,016 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1730145791] [2021-01-20 21:11:09,017 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 21:11:09,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 21:11:09,287 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-20 21:11:09,289 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1730145791] [2021-01-20 21:11:09,289 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 21:11:09,289 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-01-20 21:11:09,290 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1576534528] [2021-01-20 21:11:09,290 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-01-20 21:11:09,290 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 21:11:09,291 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-01-20 21:11:09,292 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-01-20 21:11:09,292 INFO L87 Difference]: Start difference. First operand 28500 states and 96204 transitions. Second operand has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 6 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 21:11:09,704 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 21:11:09,705 INFO L93 Difference]: Finished difference Result 26797 states and 88385 transitions. [2021-01-20 21:11:09,705 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-01-20 21:11:09,706 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 6 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 50 [2021-01-20 21:11:09,707 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 21:11:09,708 INFO L769 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 [2021-01-20 21:11:09,708 INFO L78 Accepts]: Start accepts. Automaton has 26797 states and 88385 transitions. Word has length 50 [2021-01-20 21:11:09,708 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 21:11:09,709 INFO L481 AbstractCegarLoop]: Abstraction has 26797 states and 88385 transitions. [2021-01-20 21:11:09,709 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 6 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 21:11:09,709 INFO L276 IsEmpty]: Start isEmpty. Operand 26797 states and 88385 transitions. [2021-01-20 21:11:09,765 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2021-01-20 21:11:09,765 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 21:11:09,766 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] [2021-01-20 21:11:09,766 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-01-20 21:11:09,766 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-20 21:11:09,767 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 21:11:09,768 INFO L82 PathProgramCache]: Analyzing trace with hash 58790281, now seen corresponding path program 1 times [2021-01-20 21:11:09,768 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 21:11:09,769 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1550623789] [2021-01-20 21:11:09,769 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 21:11:09,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 21:11:10,036 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-20 21:11:10,037 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1550623789] [2021-01-20 21:11:10,037 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 21:11:10,037 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-01-20 21:11:10,038 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1632070743] [2021-01-20 21:11:10,038 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-01-20 21:11:10,038 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 21:11:10,039 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-01-20 21:11:10,040 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-01-20 21:11:10,040 INFO L87 Difference]: Start difference. First operand 26797 states and 88385 transitions. Second operand has 7 states, 7 states have (on average 7.285714285714286) internal successors, (51), 7 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 21:11:10,398 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 21:11:10,398 INFO L93 Difference]: Finished difference Result 18052 states and 57853 transitions. [2021-01-20 21:11:10,399 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-01-20 21:11:10,399 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.285714285714286) internal successors, (51), 7 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 51 [2021-01-20 21:11:10,400 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 21:11:10,400 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=73, Invalid=137, Unknown=0, NotChecked=0, Total=210 [2021-01-20 21:11:10,400 INFO L78 Accepts]: Start accepts. Automaton has 18052 states and 57853 transitions. Word has length 51 [2021-01-20 21:11:10,401 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 21:11:10,401 INFO L481 AbstractCegarLoop]: Abstraction has 18052 states and 57853 transitions. [2021-01-20 21:11:10,401 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 7.285714285714286) internal successors, (51), 7 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 21:11:10,401 INFO L276 IsEmpty]: Start isEmpty. Operand 18052 states and 57853 transitions. [2021-01-20 21:11:10,535 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2021-01-20 21:11:10,536 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 21:11:10,536 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] [2021-01-20 21:11:10,536 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-01-20 21:11:10,542 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-20 21:11:10,543 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 21:11:10,543 INFO L82 PathProgramCache]: Analyzing trace with hash 1533825064, now seen corresponding path program 1 times [2021-01-20 21:11:10,543 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 21:11:10,543 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1517884761] [2021-01-20 21:11:10,544 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 21:11:10,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 21:11:10,706 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-20 21:11:10,707 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1517884761] [2021-01-20 21:11:10,707 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 21:11:10,707 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-01-20 21:11:10,707 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1055403467] [2021-01-20 21:11:10,708 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-01-20 21:11:10,708 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 21:11:10,709 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-01-20 21:11:10,709 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-01-20 21:11:10,709 INFO L87 Difference]: Start difference. First operand 18052 states and 57853 transitions. Second operand has 8 states, 8 states have (on average 6.5) internal successors, (52), 8 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 21:11:11,171 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 21:11:11,171 INFO L93 Difference]: Finished difference Result 12508 states and 39598 transitions. [2021-01-20 21:11:11,173 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-01-20 21:11:11,173 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.5) internal successors, (52), 8 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 52 [2021-01-20 21:11:11,174 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 21:11:11,174 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=116, Invalid=226, Unknown=0, NotChecked=0, Total=342 [2021-01-20 21:11:11,174 INFO L78 Accepts]: Start accepts. Automaton has 12508 states and 39598 transitions. Word has length 52 [2021-01-20 21:11:11,175 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 21:11:11,175 INFO L481 AbstractCegarLoop]: Abstraction has 12508 states and 39598 transitions. [2021-01-20 21:11:11,175 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 6.5) internal successors, (52), 8 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 21:11:11,176 INFO L276 IsEmpty]: Start isEmpty. Operand 12508 states and 39598 transitions. [2021-01-20 21:11:11,201 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2021-01-20 21:11:11,202 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 21:11:11,202 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, 1] [2021-01-20 21:11:11,202 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-01-20 21:11:11,202 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-20 21:11:11,203 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 21:11:11,203 INFO L82 PathProgramCache]: Analyzing trace with hash 2090541767, now seen corresponding path program 1 times [2021-01-20 21:11:11,203 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 21:11:11,203 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [92671647] [2021-01-20 21:11:11,204 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 21:11:11,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 21:11:11,299 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-20 21:11:11,299 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [92671647] [2021-01-20 21:11:11,299 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 21:11:11,299 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-01-20 21:11:11,300 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1136194422] [2021-01-20 21:11:11,300 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-01-20 21:11:11,300 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 21:11:11,301 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-01-20 21:11:11,301 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-01-20 21:11:11,301 INFO L87 Difference]: Start difference. First operand 12508 states and 39598 transitions. Second operand has 6 states, 6 states have (on average 9.0) internal successors, (54), 6 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 21:11:11,472 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 21:11:11,473 INFO L93 Difference]: Finished difference Result 18640 states and 58534 transitions. [2021-01-20 21:11:11,473 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-01-20 21:11:11,473 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.0) internal successors, (54), 6 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 54 [2021-01-20 21:11:11,474 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 21:11:11,474 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2021-01-20 21:11:11,474 INFO L78 Accepts]: Start accepts. Automaton has 18640 states and 58534 transitions. Word has length 54 [2021-01-20 21:11:11,475 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 21:11:11,475 INFO L481 AbstractCegarLoop]: Abstraction has 18640 states and 58534 transitions. [2021-01-20 21:11:11,475 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 9.0) internal successors, (54), 6 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 21:11:11,475 INFO L276 IsEmpty]: Start isEmpty. Operand 18640 states and 58534 transitions. [2021-01-20 21:11:11,499 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-01-20 21:11:11,500 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-01-20 21:11:11,504 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.01 09:11:11 BasicIcfg [2021-01-20 21:11:11,504 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-01-20 21:11:11,507 INFO L168 Benchmark]: Toolchain (without parser) took 7993.06 ms. Allocated memory was 302.0 MB in the beginning and 1.3 GB in the end (delta: 956.3 MB). Free memory was 277.1 MB in the beginning and 937.4 MB in the end (delta: -660.3 MB). Peak memory consumption was 297.5 MB. Max. memory is 16.0 GB. [2021-01-20 21:11:11,508 INFO L168 Benchmark]: CDTParser took 0.29 ms. Allocated memory is still 302.0 MB. Free memory is still 272.2 MB. There was no memory consumed. Max. memory is 16.0 GB. [2021-01-20 21:11:11,508 INFO L168 Benchmark]: CACSL2BoogieTranslator took 597.61 ms. Allocated memory is still 302.0 MB. Free memory was 276.9 MB in the beginning and 245.4 MB in the end (delta: 31.5 MB). Peak memory consumption was 31.5 MB. Max. memory is 16.0 GB. [2021-01-20 21:11:11,509 INFO L168 Benchmark]: Boogie Procedure Inliner took 71.48 ms. Allocated memory is still 302.0 MB. Free memory was 245.2 MB in the beginning and 283.2 MB in the end (delta: -38.0 MB). Peak memory consumption was 6.7 MB. Max. memory is 16.0 GB. [2021-01-20 21:11:11,510 INFO L168 Benchmark]: Boogie Preprocessor took 35.14 ms. Allocated memory is still 302.0 MB. Free memory was 283.2 MB in the beginning and 281.4 MB in the end (delta: 1.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-01-20 21:11:11,511 INFO L168 Benchmark]: RCFGBuilder took 665.23 ms. Allocated memory is still 302.0 MB. Free memory was 281.4 MB in the beginning and 258.3 MB in the end (delta: 23.1 MB). Peak memory consumption was 23.1 MB. Max. memory is 16.0 GB. [2021-01-20 21:11:11,512 INFO L168 Benchmark]: TraceAbstraction took 6615.69 ms. Allocated memory was 302.0 MB in the beginning and 1.3 GB in the end (delta: 956.3 MB). Free memory was 258.3 MB in the beginning and 937.4 MB in the end (delta: -679.1 MB). Peak memory consumption was 276.2 MB. Max. memory is 16.0 GB. [2021-01-20 21:11:11,516 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29 ms. Allocated memory is still 302.0 MB. Free memory is still 272.2 MB. There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 597.61 ms. Allocated memory is still 302.0 MB. Free memory was 276.9 MB in the beginning and 245.4 MB in the end (delta: 31.5 MB). Peak memory consumption was 31.5 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 71.48 ms. Allocated memory is still 302.0 MB. Free memory was 245.2 MB in the beginning and 283.2 MB in the end (delta: -38.0 MB). Peak memory consumption was 6.7 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 35.14 ms. Allocated memory is still 302.0 MB. Free memory was 283.2 MB in the beginning and 281.4 MB in the end (delta: 1.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * RCFGBuilder took 665.23 ms. Allocated memory is still 302.0 MB. Free memory was 281.4 MB in the beginning and 258.3 MB in the end (delta: 23.1 MB). Peak memory consumption was 23.1 MB. Max. memory is 16.0 GB. * TraceAbstraction took 6615.69 ms. Allocated memory was 302.0 MB in the beginning and 1.3 GB in the end (delta: 956.3 MB). Free memory was 258.3 MB in the beginning and 937.4 MB in the end (delta: -679.1 MB). Peak memory consumption was 276.2 MB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 17]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 77 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 6.4s, OverallIterations: 7, TraceHistogramMax: 1, AutomataDifference: 3.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.0s, HoareTripleCheckerStatistics: 736 SDtfs, 1635 SDslu, 2628 SDs, 0 SdLazy, 309 SolverSat, 86 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 97 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 83 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 156 ImplicationChecksByTransitivity, 1.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=28500occurred 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, 1.1s InterpolantComputationTime, 340 NumberOfCodeBlocks, 340 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 333 ConstructedInterpolants, 0 QuantifiedInterpolants, 41977 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...