/usr/bin/java -Xmx8000000000 -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/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/pthread-wmm/safe021_tso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.2.0-7a177ad [2020-11-09 12:49:46,634 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-09 12:49:46,638 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-09 12:49:46,695 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-09 12:49:46,696 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-09 12:49:46,700 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-09 12:49:46,704 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-09 12:49:46,712 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-09 12:49:46,715 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-09 12:49:46,721 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-09 12:49:46,723 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-09 12:49:46,725 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-09 12:49:46,725 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-09 12:49:46,729 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-09 12:49:46,732 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-09 12:49:46,734 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-09 12:49:46,735 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-09 12:49:46,738 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-09 12:49:46,741 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-09 12:49:46,748 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-09 12:49:46,750 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-09 12:49:46,751 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-09 12:49:46,753 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-09 12:49:46,754 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-09 12:49:46,757 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-09 12:49:46,757 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-09 12:49:46,758 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-09 12:49:46,759 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-09 12:49:46,759 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-09 12:49:46,760 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-09 12:49:46,761 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-09 12:49:46,762 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-09 12:49:46,763 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-09 12:49:46,764 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-09 12:49:46,765 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-09 12:49:46,765 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-09 12:49:46,766 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-09 12:49:46,766 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-09 12:49:46,766 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-09 12:49:46,768 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-09 12:49:46,768 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-09 12:49:46,776 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-11-09 12:49:46,801 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-09 12:49:46,801 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-09 12:49:46,802 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-09 12:49:46,803 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-09 12:49:46,803 INFO L138 SettingsManager]: * Use SBE=true [2020-11-09 12:49:46,803 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-09 12:49:46,803 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-09 12:49:46,804 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-09 12:49:46,804 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-09 12:49:46,804 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-09 12:49:46,804 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-09 12:49:46,804 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-09 12:49:46,805 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-09 12:49:46,805 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-09 12:49:46,805 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-09 12:49:46,805 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-09 12:49:46,805 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-09 12:49:46,806 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-09 12:49:46,806 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-09 12:49:46,806 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-09 12:49:46,806 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-09 12:49:46,806 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-09 12:49:46,807 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-09 12:49:46,807 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-09 12:49:46,807 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-09 12:49:46,807 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-09 12:49:46,808 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-09 12:49:46,808 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-09 12:49:46,808 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-09 12:49:46,808 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-11-09 12:49:47,155 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-09 12:49:47,196 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-09 12:49:47,201 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-09 12:49:47,203 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-09 12:49:47,203 INFO L275 PluginConnector]: CDTParser initialized [2020-11-09 12:49:47,204 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe021_tso.oepc.i [2020-11-09 12:49:47,292 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d15835ac6/8330c31c3bef46fca724c5edaef6f4c7/FLAG262e5fb96 [2020-11-09 12:49:48,037 INFO L306 CDTParser]: Found 1 translation units. [2020-11-09 12:49:48,037 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe021_tso.oepc.i [2020-11-09 12:49:48,058 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d15835ac6/8330c31c3bef46fca724c5edaef6f4c7/FLAG262e5fb96 [2020-11-09 12:49:48,330 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d15835ac6/8330c31c3bef46fca724c5edaef6f4c7 [2020-11-09 12:49:48,333 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-09 12:49:48,341 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-11-09 12:49:48,344 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-09 12:49:48,345 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-09 12:49:48,349 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-09 12:49:48,350 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 12:49:48" (1/1) ... [2020-11-09 12:49:48,354 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7b59d057 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:49:48, skipping insertion in model container [2020-11-09 12:49:48,354 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 12:49:48" (1/1) ... [2020-11-09 12:49:48,363 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-09 12:49:48,406 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-09 12:49:48,878 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-09 12:49:48,890 INFO L203 MainTranslator]: Completed pre-run [2020-11-09 12:49:48,977 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-09 12:49:49,095 INFO L208 MainTranslator]: Completed translation [2020-11-09 12:49:49,096 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:49:49 WrapperNode [2020-11-09 12:49:49,097 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-09 12:49:49,098 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-09 12:49:49,099 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-09 12:49:49,099 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-09 12:49:49,109 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:49:49" (1/1) ... [2020-11-09 12:49:49,130 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:49:49" (1/1) ... [2020-11-09 12:49:49,155 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-09 12:49:49,156 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-09 12:49:49,156 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-09 12:49:49,156 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-09 12:49:49,166 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:49:49" (1/1) ... [2020-11-09 12:49:49,167 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:49:49" (1/1) ... [2020-11-09 12:49:49,170 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:49:49" (1/1) ... [2020-11-09 12:49:49,170 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:49:49" (1/1) ... [2020-11-09 12:49:49,177 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:49:49" (1/1) ... [2020-11-09 12:49:49,180 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:49:49" (1/1) ... [2020-11-09 12:49:49,182 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:49:49" (1/1) ... [2020-11-09 12:49:49,185 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-09 12:49:49,186 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-09 12:49:49,187 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-09 12:49:49,187 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-09 12:49:49,188 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:49:49" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-09 12:49:49,265 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-09 12:49:49,265 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-11-09 12:49:49,265 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-09 12:49:49,266 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-09 12:49:49,266 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-11-09 12:49:49,266 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-11-09 12:49:49,266 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-11-09 12:49:49,266 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-11-09 12:49:49,266 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-11-09 12:49:49,267 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-11-09 12:49:49,267 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-09 12:49:49,267 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-11-09 12:49:49,267 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-09 12:49:49,267 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-09 12:49:49,269 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-11-09 12:49:49,951 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-09 12:49:49,951 INFO L298 CfgBuilder]: Removed 10 assume(true) statements. [2020-11-09 12:49:49,955 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 12:49:49 BoogieIcfgContainer [2020-11-09 12:49:49,955 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-09 12:49:49,959 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-09 12:49:49,959 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-09 12:49:49,964 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-09 12:49:49,964 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 12:49:48" (1/3) ... [2020-11-09 12:49:49,966 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@323d30e1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 12:49:49, skipping insertion in model container [2020-11-09 12:49:49,967 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:49:49" (2/3) ... [2020-11-09 12:49:49,967 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@323d30e1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 12:49:49, skipping insertion in model container [2020-11-09 12:49:49,968 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 12:49:49" (3/3) ... [2020-11-09 12:49:49,970 INFO L111 eAbstractionObserver]: Analyzing ICFG safe021_tso.oepc.i [2020-11-09 12:49:49,989 WARN L168 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-11-09 12:49:49,990 INFO L179 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-09 12:49:49,994 INFO L191 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-09 12:49:49,995 INFO L351 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-11-09 12:49:50,048 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:49:50,048 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:49:50,048 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:49:50,049 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:49:50,049 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:49:50,049 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:49:50,049 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:49:50,049 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:49:50,050 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:49:50,050 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:49:50,050 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:49:50,050 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:49:50,051 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:49:50,051 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:49:50,052 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:49:50,052 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:49:50,052 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:49:50,052 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:49:50,052 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:49:50,052 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:49:50,053 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:49:50,053 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:49:50,053 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:49:50,053 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:49:50,055 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:49:50,056 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:49:50,057 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:49:50,057 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:49:50,058 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:49:50,058 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:49:50,058 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:49:50,059 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:49:50,059 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:49:50,059 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:49:50,059 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:49:50,060 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:49:50,069 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:49:50,070 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:49:50,070 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:49:50,071 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:49:50,080 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:49:50,081 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:49:50,081 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:49:50,081 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:49:50,086 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:49:50,086 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:49:50,087 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:49:50,087 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:49:50,091 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2020-11-09 12:49:50,106 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-11-09 12:49:50,140 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-09 12:49:50,141 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-09 12:49:50,141 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-09 12:49:50,141 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-09 12:49:50,141 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-09 12:49:50,141 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-09 12:49:50,141 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-09 12:49:50,141 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-09 12:49:50,154 INFO L120 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2020-11-09 12:49:50,156 INFO L135 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 86 places, 79 transitions, 173 flow [2020-11-09 12:49:50,159 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 86 places, 79 transitions, 173 flow [2020-11-09 12:49:50,161 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 86 places, 79 transitions, 173 flow [2020-11-09 12:49:50,213 INFO L129 PetriNetUnfolder]: 3/76 cut-off events. [2020-11-09 12:49:50,214 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-11-09 12:49:50,218 INFO L84 FinitePrefix]: Finished finitePrefix Result has 86 conditions, 76 events. 3/76 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 57 event pairs, 0 based on Foata normal form. 0/72 useless extension candidates. Maximal degree in co-relation 60. Up to 2 conditions per place. [2020-11-09 12:49:50,222 INFO L116 LiptonReduction]: Number of co-enabled transitions 1440 [2020-11-09 12:49:53,750 WARN L194 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 76 [2020-11-09 12:49:53,860 WARN L194 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 72 [2020-11-09 12:49:53,976 WARN L194 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 76 [2020-11-09 12:49:54,580 WARN L194 SmtUtils]: Spent 241.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 74 [2020-11-09 12:49:54,701 WARN L194 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 72 [2020-11-09 12:49:54,931 WARN L194 SmtUtils]: Spent 227.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 74 [2020-11-09 12:49:55,057 WARN L194 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 72 [2020-11-09 12:49:55,105 INFO L131 LiptonReduction]: Checked pairs total: 3181 [2020-11-09 12:49:55,105 INFO L133 LiptonReduction]: Total number of compositions: 74 [2020-11-09 12:49:55,112 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 31 places, 22 transitions, 59 flow [2020-11-09 12:49:55,158 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 298 states. [2020-11-09 12:49:55,160 INFO L276 IsEmpty]: Start isEmpty. Operand 298 states. [2020-11-09 12:49:55,170 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-11-09 12:49:55,171 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 12:49:55,172 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 12:49:55,172 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 12:49:55,179 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 12:49:55,180 INFO L82 PathProgramCache]: Analyzing trace with hash 2101373786, now seen corresponding path program 1 times [2020-11-09 12:49:55,190 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 12:49:55,191 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [367095177] [2020-11-09 12:49:55,191 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 12:49:55,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 12:49:55,456 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-09 12:49:55,457 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [367095177] [2020-11-09 12:49:55,458 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 12:49:55,458 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-11-09 12:49:55,461 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [292503136] [2020-11-09 12:49:55,466 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-09 12:49:55,466 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 12:49:55,486 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-09 12:49:55,488 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-09 12:49:55,491 INFO L87 Difference]: Start difference. First operand 298 states. Second operand 3 states. [2020-11-09 12:49:55,561 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 12:49:55,562 INFO L93 Difference]: Finished difference Result 282 states and 808 transitions. [2020-11-09 12:49:55,563 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-09 12:49:55,565 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2020-11-09 12:49:55,565 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 12:49:55,584 INFO L225 Difference]: With dead ends: 282 [2020-11-09 12:49:55,584 INFO L226 Difference]: Without dead ends: 218 [2020-11-09 12:49:55,586 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-09 12:49:55,611 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 218 states. [2020-11-09 12:49:55,656 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 218 to 218. [2020-11-09 12:49:55,657 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 218 states. [2020-11-09 12:49:55,661 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 218 states to 218 states and 600 transitions. [2020-11-09 12:49:55,663 INFO L78 Accepts]: Start accepts. Automaton has 218 states and 600 transitions. Word has length 8 [2020-11-09 12:49:55,664 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 12:49:55,664 INFO L481 AbstractCegarLoop]: Abstraction has 218 states and 600 transitions. [2020-11-09 12:49:55,664 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-09 12:49:55,665 INFO L276 IsEmpty]: Start isEmpty. Operand 218 states and 600 transitions. [2020-11-09 12:49:55,666 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-11-09 12:49:55,666 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 12:49:55,666 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 12:49:55,667 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-09 12:49:55,667 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 12:49:55,668 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 12:49:55,668 INFO L82 PathProgramCache]: Analyzing trace with hash 718076695, now seen corresponding path program 1 times [2020-11-09 12:49:55,668 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 12:49:55,668 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1384786772] [2020-11-09 12:49:55,669 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 12:49:55,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 12:49:55,792 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-09 12:49:55,793 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1384786772] [2020-11-09 12:49:55,794 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 12:49:55,794 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-09 12:49:55,795 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [814871401] [2020-11-09 12:49:55,796 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-09 12:49:55,797 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 12:49:55,797 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-09 12:49:55,798 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-09 12:49:55,798 INFO L87 Difference]: Start difference. First operand 218 states and 600 transitions. Second operand 4 states. [2020-11-09 12:49:55,872 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 12:49:55,875 INFO L93 Difference]: Finished difference Result 242 states and 634 transitions. [2020-11-09 12:49:55,876 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-09 12:49:55,876 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 9 [2020-11-09 12:49:55,877 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 12:49:55,880 INFO L225 Difference]: With dead ends: 242 [2020-11-09 12:49:55,881 INFO L226 Difference]: Without dead ends: 146 [2020-11-09 12:49:55,882 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-11-09 12:49:55,885 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 146 states. [2020-11-09 12:49:55,912 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 146 to 146. [2020-11-09 12:49:55,913 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 146 states. [2020-11-09 12:49:55,917 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 146 states to 146 states and 362 transitions. [2020-11-09 12:49:55,917 INFO L78 Accepts]: Start accepts. Automaton has 146 states and 362 transitions. Word has length 9 [2020-11-09 12:49:55,918 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 12:49:55,918 INFO L481 AbstractCegarLoop]: Abstraction has 146 states and 362 transitions. [2020-11-09 12:49:55,918 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-09 12:49:55,918 INFO L276 IsEmpty]: Start isEmpty. Operand 146 states and 362 transitions. [2020-11-09 12:49:55,923 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-11-09 12:49:55,923 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 12:49:55,923 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 12:49:55,924 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-09 12:49:55,925 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 12:49:55,925 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 12:49:55,926 INFO L82 PathProgramCache]: Analyzing trace with hash -676988276, now seen corresponding path program 1 times [2020-11-09 12:49:55,927 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 12:49:55,928 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1540440992] [2020-11-09 12:49:55,928 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 12:49:56,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 12:49:56,127 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-09 12:49:56,127 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1540440992] [2020-11-09 12:49:56,128 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 12:49:56,129 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-09 12:49:56,129 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [890632997] [2020-11-09 12:49:56,130 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-09 12:49:56,130 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 12:49:56,135 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-09 12:49:56,136 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-09 12:49:56,136 INFO L87 Difference]: Start difference. First operand 146 states and 362 transitions. Second operand 4 states. [2020-11-09 12:49:56,198 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 12:49:56,198 INFO L93 Difference]: Finished difference Result 165 states and 377 transitions. [2020-11-09 12:49:56,198 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-09 12:49:56,199 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2020-11-09 12:49:56,199 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 12:49:56,200 INFO L225 Difference]: With dead ends: 165 [2020-11-09 12:49:56,200 INFO L226 Difference]: Without dead ends: 125 [2020-11-09 12:49:56,203 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-11-09 12:49:56,205 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 125 states. [2020-11-09 12:49:56,220 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 125 to 125. [2020-11-09 12:49:56,221 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 125 states. [2020-11-09 12:49:56,221 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125 states to 125 states and 284 transitions. [2020-11-09 12:49:56,222 INFO L78 Accepts]: Start accepts. Automaton has 125 states and 284 transitions. Word has length 11 [2020-11-09 12:49:56,222 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 12:49:56,222 INFO L481 AbstractCegarLoop]: Abstraction has 125 states and 284 transitions. [2020-11-09 12:49:56,222 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-09 12:49:56,222 INFO L276 IsEmpty]: Start isEmpty. Operand 125 states and 284 transitions. [2020-11-09 12:49:56,227 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-11-09 12:49:56,228 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 12:49:56,228 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 12:49:56,228 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-11-09 12:49:56,229 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 12:49:56,231 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 12:49:56,232 INFO L82 PathProgramCache]: Analyzing trace with hash 524604256, now seen corresponding path program 1 times [2020-11-09 12:49:56,232 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 12:49:56,233 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1734346767] [2020-11-09 12:49:56,233 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 12:49:56,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 12:49:56,370 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-09 12:49:56,370 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1734346767] [2020-11-09 12:49:56,371 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 12:49:56,371 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-09 12:49:56,371 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1623357468] [2020-11-09 12:49:56,372 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-09 12:49:56,374 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 12:49:56,375 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-09 12:49:56,376 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-11-09 12:49:56,376 INFO L87 Difference]: Start difference. First operand 125 states and 284 transitions. Second operand 5 states. [2020-11-09 12:49:56,428 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 12:49:56,428 INFO L93 Difference]: Finished difference Result 122 states and 258 transitions. [2020-11-09 12:49:56,429 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-09 12:49:56,429 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 12 [2020-11-09 12:49:56,429 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 12:49:56,430 INFO L225 Difference]: With dead ends: 122 [2020-11-09 12:49:56,430 INFO L226 Difference]: Without dead ends: 97 [2020-11-09 12:49:56,431 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-11-09 12:49:56,432 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 97 states. [2020-11-09 12:49:56,437 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 97 to 97. [2020-11-09 12:49:56,437 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 97 states. [2020-11-09 12:49:56,438 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 97 states and 202 transitions. [2020-11-09 12:49:56,438 INFO L78 Accepts]: Start accepts. Automaton has 97 states and 202 transitions. Word has length 12 [2020-11-09 12:49:56,438 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 12:49:56,438 INFO L481 AbstractCegarLoop]: Abstraction has 97 states and 202 transitions. [2020-11-09 12:49:56,439 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-09 12:49:56,439 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 202 transitions. [2020-11-09 12:49:56,439 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-11-09 12:49:56,440 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 12:49:56,440 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 12:49:56,440 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-11-09 12:49:56,440 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 12:49:56,441 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 12:49:56,441 INFO L82 PathProgramCache]: Analyzing trace with hash 1603145941, now seen corresponding path program 1 times [2020-11-09 12:49:56,441 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 12:49:56,442 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2092968565] [2020-11-09 12:49:56,442 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 12:49:56,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 12:49:56,539 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-09 12:49:56,540 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2092968565] [2020-11-09 12:49:56,540 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 12:49:56,540 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-09 12:49:56,541 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [447695096] [2020-11-09 12:49:56,541 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-09 12:49:56,541 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 12:49:56,542 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-09 12:49:56,542 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-11-09 12:49:56,543 INFO L87 Difference]: Start difference. First operand 97 states and 202 transitions. Second operand 6 states. [2020-11-09 12:49:56,614 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 12:49:56,615 INFO L93 Difference]: Finished difference Result 92 states and 190 transitions. [2020-11-09 12:49:56,615 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-11-09 12:49:56,615 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 14 [2020-11-09 12:49:56,616 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 12:49:56,616 INFO L225 Difference]: With dead ends: 92 [2020-11-09 12:49:56,616 INFO L226 Difference]: Without dead ends: 84 [2020-11-09 12:49:56,617 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2020-11-09 12:49:56,618 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84 states. [2020-11-09 12:49:56,621 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84 to 84. [2020-11-09 12:49:56,621 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 84 states. [2020-11-09 12:49:56,622 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 84 states and 176 transitions. [2020-11-09 12:49:56,622 INFO L78 Accepts]: Start accepts. Automaton has 84 states and 176 transitions. Word has length 14 [2020-11-09 12:49:56,629 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 12:49:56,629 INFO L481 AbstractCegarLoop]: Abstraction has 84 states and 176 transitions. [2020-11-09 12:49:56,630 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-11-09 12:49:56,630 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 176 transitions. [2020-11-09 12:49:56,630 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-11-09 12:49:56,631 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 12:49:56,631 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 12:49:56,633 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-11-09 12:49:56,633 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 12:49:56,634 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 12:49:56,634 INFO L82 PathProgramCache]: Analyzing trace with hash 1724594669, now seen corresponding path program 1 times [2020-11-09 12:49:56,634 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 12:49:56,634 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [338698821] [2020-11-09 12:49:56,634 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 12:49:56,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 12:49:56,686 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-09 12:49:56,686 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [338698821] [2020-11-09 12:49:56,686 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 12:49:56,687 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-09 12:49:56,687 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [283426305] [2020-11-09 12:49:56,687 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-09 12:49:56,687 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 12:49:56,688 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-09 12:49:56,688 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-09 12:49:56,688 INFO L87 Difference]: Start difference. First operand 84 states and 176 transitions. Second operand 4 states. [2020-11-09 12:49:56,704 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 12:49:56,705 INFO L93 Difference]: Finished difference Result 97 states and 197 transitions. [2020-11-09 12:49:56,705 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-09 12:49:56,705 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 17 [2020-11-09 12:49:56,706 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 12:49:56,706 INFO L225 Difference]: With dead ends: 97 [2020-11-09 12:49:56,706 INFO L226 Difference]: Without dead ends: 36 [2020-11-09 12:49:56,707 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-11-09 12:49:56,707 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2020-11-09 12:49:56,708 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 36. [2020-11-09 12:49:56,709 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2020-11-09 12:49:56,709 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 56 transitions. [2020-11-09 12:49:56,709 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 56 transitions. Word has length 17 [2020-11-09 12:49:56,709 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 12:49:56,710 INFO L481 AbstractCegarLoop]: Abstraction has 36 states and 56 transitions. [2020-11-09 12:49:56,710 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-09 12:49:56,710 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 56 transitions. [2020-11-09 12:49:56,710 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-11-09 12:49:56,710 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 12:49:56,711 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 12:49:56,711 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-11-09 12:49:56,711 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 12:49:56,711 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 12:49:56,712 INFO L82 PathProgramCache]: Analyzing trace with hash -737350579, now seen corresponding path program 2 times [2020-11-09 12:49:56,712 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 12:49:56,712 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1923668560] [2020-11-09 12:49:56,712 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 12:49:56,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 12:49:56,741 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-09 12:49:56,741 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1923668560] [2020-11-09 12:49:56,741 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 12:49:56,742 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-09 12:49:56,742 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1862338241] [2020-11-09 12:49:56,742 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-09 12:49:56,743 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 12:49:56,743 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-09 12:49:56,743 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-09 12:49:56,744 INFO L87 Difference]: Start difference. First operand 36 states and 56 transitions. Second operand 3 states. [2020-11-09 12:49:56,751 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 12:49:56,752 INFO L93 Difference]: Finished difference Result 35 states and 55 transitions. [2020-11-09 12:49:56,752 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-09 12:49:56,752 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 17 [2020-11-09 12:49:56,753 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 12:49:56,753 INFO L225 Difference]: With dead ends: 35 [2020-11-09 12:49:56,753 INFO L226 Difference]: Without dead ends: 0 [2020-11-09 12:49:56,753 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-09 12:49:56,754 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-11-09 12:49:56,754 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-11-09 12:49:56,754 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-11-09 12:49:56,754 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-11-09 12:49:56,754 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 17 [2020-11-09 12:49:56,754 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 12:49:56,755 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-09 12:49:56,755 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-09 12:49:56,755 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-11-09 12:49:56,755 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-09 12:49:56,755 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-11-09 12:49:56,759 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.11 12:49:56 BasicIcfg [2020-11-09 12:49:56,759 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-09 12:49:56,761 INFO L168 Benchmark]: Toolchain (without parser) took 8425.52 ms. Allocated memory was 165.7 MB in the beginning and 257.9 MB in the end (delta: 92.3 MB). Free memory was 139.3 MB in the beginning and 168.5 MB in the end (delta: -29.2 MB). Peak memory consumption was 64.2 MB. Max. memory is 8.0 GB. [2020-11-09 12:49:56,762 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 165.7 MB. Free memory is still 140.3 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-11-09 12:49:56,763 INFO L168 Benchmark]: CACSL2BoogieTranslator took 752.92 ms. Allocated memory is still 165.7 MB. Free memory was 138.6 MB in the beginning and 107.8 MB in the end (delta: 30.7 MB). Peak memory consumption was 30.4 MB. Max. memory is 8.0 GB. [2020-11-09 12:49:56,764 INFO L168 Benchmark]: Boogie Procedure Inliner took 56.97 ms. Allocated memory is still 165.7 MB. Free memory was 107.8 MB in the beginning and 105.9 MB in the end (delta: 1.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2020-11-09 12:49:56,764 INFO L168 Benchmark]: Boogie Preprocessor took 29.81 ms. Allocated memory is still 165.7 MB. Free memory was 105.9 MB in the beginning and 104.6 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2020-11-09 12:49:56,765 INFO L168 Benchmark]: RCFGBuilder took 768.98 ms. Allocated memory is still 165.7 MB. Free memory was 104.6 MB in the beginning and 139.8 MB in the end (delta: -35.3 MB). Peak memory consumption was 19.0 MB. Max. memory is 8.0 GB. [2020-11-09 12:49:56,766 INFO L168 Benchmark]: TraceAbstraction took 6800.15 ms. Allocated memory was 165.7 MB in the beginning and 257.9 MB in the end (delta: 92.3 MB). Free memory was 139.8 MB in the beginning and 168.5 MB in the end (delta: -28.7 MB). Peak memory consumption was 65.2 MB. Max. memory is 8.0 GB. [2020-11-09 12:49:56,770 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 165.7 MB. Free memory is still 140.3 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 752.92 ms. Allocated memory is still 165.7 MB. Free memory was 138.6 MB in the beginning and 107.8 MB in the end (delta: 30.7 MB). Peak memory consumption was 30.4 MB. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 56.97 ms. Allocated memory is still 165.7 MB. Free memory was 107.8 MB in the beginning and 105.9 MB in the end (delta: 1.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 29.81 ms. Allocated memory is still 165.7 MB. Free memory was 105.9 MB in the beginning and 104.6 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 768.98 ms. Allocated memory is still 165.7 MB. Free memory was 104.6 MB in the beginning and 139.8 MB in the end (delta: -35.3 MB). Peak memory consumption was 19.0 MB. Max. memory is 8.0 GB. * TraceAbstraction took 6800.15 ms. Allocated memory was 165.7 MB in the beginning and 257.9 MB in the end (delta: 92.3 MB). Free memory was 139.8 MB in the beginning and 168.5 MB in the end (delta: -28.7 MB). Peak memory consumption was 65.2 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 1027 VarBasedMoverChecksPositive, 54 VarBasedMoverChecksNegative, 11 SemBasedMoverChecksPositive, 43 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.5s, 93 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 4.9s, 86 PlacesBefore, 31 PlacesAfterwards, 79 TransitionsBefore, 22 TransitionsAfterwards, 1440 CoEnabledTransitionPairs, 6 FixpointIterations, 18 TrivialSequentialCompositions, 43 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 11 ConcurrentYvCompositions, 2 ChoiceCompositions, 74 TotalNumberOfCompositions, 3181 MoverChecksTotal - 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: 6.6s, OverallIterations: 7, TraceHistogramMax: 1, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 5.0s, HoareTripleCheckerStatistics: 135 SDtfs, 129 SDslu, 180 SDs, 0 SdLazy, 95 SolverSat, 20 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 22 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=298occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 7 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 88 NumberOfCodeBlocks, 88 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 81 ConstructedInterpolants, 0 QuantifiedInterpolants, 2753 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...