/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe.epf -i ../../../trunk/examples/svcomp/pthread-wmm/safe035_rmo.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.2.0-60729f1 [2020-11-11 18:17:24,545 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-11 18:17:24,548 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-11 18:17:24,584 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-11 18:17:24,584 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-11 18:17:24,586 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-11 18:17:24,588 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-11 18:17:24,590 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-11 18:17:24,593 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-11 18:17:24,594 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-11 18:17:24,595 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-11 18:17:24,597 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-11 18:17:24,597 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-11 18:17:24,599 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-11 18:17:24,600 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-11 18:17:24,601 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-11 18:17:24,602 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-11 18:17:24,604 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-11 18:17:24,606 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-11 18:17:24,608 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-11 18:17:24,610 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-11 18:17:24,611 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-11 18:17:24,613 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-11 18:17:24,614 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-11 18:17:24,617 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-11 18:17:24,617 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-11 18:17:24,618 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-11 18:17:24,619 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-11 18:17:24,620 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-11 18:17:24,621 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-11 18:17:24,621 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-11 18:17:24,622 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-11 18:17:24,623 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-11 18:17:24,624 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-11 18:17:24,626 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-11 18:17:24,626 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-11 18:17:24,627 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-11 18:17:24,628 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-11 18:17:24,628 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-11 18:17:24,629 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-11 18:17:24,630 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-11 18:17:24,632 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe.epf [2020-11-11 18:17:24,660 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-11 18:17:24,660 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-11 18:17:24,662 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-11 18:17:24,662 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-11 18:17:24,663 INFO L138 SettingsManager]: * Use SBE=true [2020-11-11 18:17:24,663 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-11 18:17:24,663 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-11 18:17:24,664 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-11 18:17:24,664 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-11 18:17:24,664 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-11 18:17:24,664 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-11 18:17:24,665 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-11 18:17:24,665 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-11 18:17:24,665 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-11 18:17:24,666 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-11 18:17:24,666 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-11 18:17:24,666 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-11 18:17:24,667 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-11 18:17:24,667 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-11 18:17:24,667 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-11 18:17:24,667 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-11 18:17:24,668 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-11 18:17:24,668 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-11 18:17:24,668 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-11 18:17:24,669 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-11 18:17:24,669 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-11 18:17:24,669 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-11 18:17:24,670 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2020-11-11 18:17:24,670 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-11 18:17:24,670 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-11-11 18:17:25,098 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-11 18:17:25,144 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-11 18:17:25,147 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-11 18:17:25,149 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-11 18:17:25,150 INFO L275 PluginConnector]: CDTParser initialized [2020-11-11 18:17:25,151 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe035_rmo.oepc.i [2020-11-11 18:17:25,250 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b7f12d792/5e09ec1637994176967fdd7624c04023/FLAGfc83a80fb [2020-11-11 18:17:26,014 INFO L306 CDTParser]: Found 1 translation units. [2020-11-11 18:17:26,015 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe035_rmo.oepc.i [2020-11-11 18:17:26,030 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b7f12d792/5e09ec1637994176967fdd7624c04023/FLAGfc83a80fb [2020-11-11 18:17:26,239 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b7f12d792/5e09ec1637994176967fdd7624c04023 [2020-11-11 18:17:26,241 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-11 18:17:26,249 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-11-11 18:17:26,250 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-11 18:17:26,251 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-11 18:17:26,257 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-11 18:17:26,258 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.11 06:17:26" (1/1) ... [2020-11-11 18:17:26,262 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@76ff4845 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 06:17:26, skipping insertion in model container [2020-11-11 18:17:26,262 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.11 06:17:26" (1/1) ... [2020-11-11 18:17:26,270 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-11 18:17:26,312 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-11 18:17:26,655 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-11 18:17:26,666 INFO L203 MainTranslator]: Completed pre-run [2020-11-11 18:17:26,718 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-11 18:17:26,818 INFO L208 MainTranslator]: Completed translation [2020-11-11 18:17:26,819 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 06:17:26 WrapperNode [2020-11-11 18:17:26,819 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-11 18:17:26,820 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-11 18:17:26,820 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-11 18:17:26,821 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-11 18:17:26,830 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 06:17:26" (1/1) ... [2020-11-11 18:17:26,849 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 06:17:26" (1/1) ... [2020-11-11 18:17:26,875 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-11 18:17:26,876 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-11 18:17:26,876 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-11 18:17:26,877 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-11 18:17:26,887 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 06:17:26" (1/1) ... [2020-11-11 18:17:26,887 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 06:17:26" (1/1) ... [2020-11-11 18:17:26,891 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 06:17:26" (1/1) ... [2020-11-11 18:17:26,891 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 06:17:26" (1/1) ... [2020-11-11 18:17:26,898 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 06:17:26" (1/1) ... [2020-11-11 18:17:26,901 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 06:17:26" (1/1) ... [2020-11-11 18:17:26,903 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 06:17:26" (1/1) ... [2020-11-11 18:17:26,907 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-11 18:17:26,911 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-11 18:17:26,911 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-11 18:17:26,911 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-11 18:17:26,912 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 06:17:26" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-11 18:17:27,065 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-11 18:17:27,066 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-11-11 18:17:27,066 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-11 18:17:27,066 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-11 18:17:27,066 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-11-11 18:17:27,067 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-11-11 18:17:27,067 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-11-11 18:17:27,067 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-11-11 18:17:27,067 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-11-11 18:17:27,067 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-11-11 18:17:27,068 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-11 18:17:27,068 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-11-11 18:17:27,068 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-11 18:17:27,068 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-11 18:17:27,070 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-11-11 18:17:27,435 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-11 18:17:27,436 INFO L298 CfgBuilder]: Removed 10 assume(true) statements. [2020-11-11 18:17:27,438 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.11 06:17:27 BoogieIcfgContainer [2020-11-11 18:17:27,438 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-11 18:17:27,440 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-11 18:17:27,440 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-11 18:17:27,444 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-11 18:17:27,444 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.11 06:17:26" (1/3) ... [2020-11-11 18:17:27,445 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4d953910 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.11 06:17:27, skipping insertion in model container [2020-11-11 18:17:27,445 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 06:17:26" (2/3) ... [2020-11-11 18:17:27,446 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4d953910 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.11 06:17:27, skipping insertion in model container [2020-11-11 18:17:27,446 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.11 06:17:27" (3/3) ... [2020-11-11 18:17:27,448 INFO L111 eAbstractionObserver]: Analyzing ICFG safe035_rmo.oepc.i [2020-11-11 18:17:27,464 WARN L168 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-11-11 18:17:27,464 INFO L179 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-11 18:17:27,468 INFO L191 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-11 18:17:27,469 INFO L351 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-11-11 18:17:27,501 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:17:27,501 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:17:27,501 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:17:27,502 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:17:27,502 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:17:27,502 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:17:27,502 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:17:27,503 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:17:27,503 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:17:27,503 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:17:27,504 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:17:27,504 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:17:27,504 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:17:27,505 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:17:27,505 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:17:27,505 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:17:27,505 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:17:27,505 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:17:27,505 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:17:27,506 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:17:27,506 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:17:27,506 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:17:27,506 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:17:27,507 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:17:27,507 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:17:27,507 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:17:27,507 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:17:27,508 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:17:27,508 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:17:27,508 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:17:27,508 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:17:27,508 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:17:27,509 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:17:27,509 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:17:27,509 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:17:27,510 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:17:27,512 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:17:27,512 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:17:27,513 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:17:27,513 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:17:27,519 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:17:27,519 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:17:27,519 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:17:27,520 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:17:27,522 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:17:27,522 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:17:27,523 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:17:27,523 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:17:27,525 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2020-11-11 18:17:27,538 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-11-11 18:17:27,563 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-11 18:17:27,563 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-11 18:17:27,563 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-11 18:17:27,563 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-11 18:17:27,563 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-11 18:17:27,563 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-11 18:17:27,564 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-11 18:17:27,564 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-11 18:17:27,576 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 86 places, 79 transitions, 173 flow [2020-11-11 18:17:28,420 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 9848 states, 9846 states have (on average 3.614665854153971) internal successors, (35590), 9847 states have internal predecessors, (35590), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 18:17:28,477 INFO L276 IsEmpty]: Start isEmpty. Operand has 9848 states, 9846 states have (on average 3.614665854153971) internal successors, (35590), 9847 states have internal predecessors, (35590), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 18:17:28,526 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2020-11-11 18:17:28,527 INFO L486 BasicCegarLoop]: Found error trace [2020-11-11 18:17:28,528 INFO L494 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-11 18:17:28,529 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-11 18:17:28,537 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-11 18:17:28,538 INFO L82 PathProgramCache]: Analyzing trace with hash 1266406659, now seen corresponding path program 1 times [2020-11-11 18:17:28,554 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-11 18:17:28,554 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [26389067] [2020-11-11 18:17:28,555 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-11 18:17:28,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-11 18:17:29,043 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-11 18:17:29,044 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [26389067] [2020-11-11 18:17:29,045 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-11 18:17:29,045 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-11-11 18:17:29,046 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1605938910] [2020-11-11 18:17:29,051 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-11 18:17:29,052 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-11 18:17:29,067 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-11 18:17:29,068 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-11-11 18:17:29,100 INFO L87 Difference]: Start difference. First operand has 9848 states, 9846 states have (on average 3.614665854153971) internal successors, (35590), 9847 states have internal predecessors, (35590), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 6 states, 6 states have (on average 7.0) internal successors, (42), 6 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 18:17:29,587 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-11 18:17:29,588 INFO L93 Difference]: Finished difference Result 11318 states and 39237 transitions. [2020-11-11 18:17:29,589 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-11-11 18:17:29,591 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.0) internal successors, (42), 6 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 42 [2020-11-11 18:17:29,592 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-11 18:17:29,662 INFO L225 Difference]: With dead ends: 11318 [2020-11-11 18:17:29,662 INFO L226 Difference]: Without dead ends: 4213 [2020-11-11 18:17:29,666 INFO L749 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2020-11-11 18:17:29,728 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4213 states. [2020-11-11 18:17:30,025 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4213 to 4213. [2020-11-11 18:17:30,039 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4213 states, 4212 states have (on average 3.3874643874643873) internal successors, (14268), 4212 states have internal predecessors, (14268), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 18:17:30,066 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4213 states to 4213 states and 14268 transitions. [2020-11-11 18:17:30,068 INFO L78 Accepts]: Start accepts. Automaton has 4213 states and 14268 transitions. Word has length 42 [2020-11-11 18:17:30,069 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-11 18:17:30,069 INFO L481 AbstractCegarLoop]: Abstraction has 4213 states and 14268 transitions. [2020-11-11 18:17:30,070 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 7.0) internal successors, (42), 6 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 18:17:30,070 INFO L276 IsEmpty]: Start isEmpty. Operand 4213 states and 14268 transitions. [2020-11-11 18:17:30,088 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2020-11-11 18:17:30,089 INFO L486 BasicCegarLoop]: Found error trace [2020-11-11 18:17:30,090 INFO L494 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-11 18:17:30,094 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-11 18:17:30,094 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-11 18:17:30,098 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-11 18:17:30,098 INFO L82 PathProgramCache]: Analyzing trace with hash 429548758, now seen corresponding path program 1 times [2020-11-11 18:17:30,102 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-11 18:17:30,102 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [435602358] [2020-11-11 18:17:30,103 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-11 18:17:30,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-11 18:17:30,377 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-11 18:17:30,377 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [435602358] [2020-11-11 18:17:30,378 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-11 18:17:30,378 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-11-11 18:17:30,378 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1131901796] [2020-11-11 18:17:30,380 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-11 18:17:30,381 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-11 18:17:30,382 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-11 18:17:30,383 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-11-11 18:17:30,383 INFO L87 Difference]: Start difference. First operand 4213 states and 14268 transitions. Second operand has 6 states, 6 states have (on average 7.5) internal successors, (45), 6 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 18:17:30,648 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-11 18:17:30,649 INFO L93 Difference]: Finished difference Result 6334 states and 21196 transitions. [2020-11-11 18:17:30,649 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-11-11 18:17:30,650 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.5) internal successors, (45), 6 states have internal predecessors, (45), 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 45 [2020-11-11 18:17:30,650 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-11 18:17:30,677 INFO L225 Difference]: With dead ends: 6334 [2020-11-11 18:17:30,678 INFO L226 Difference]: Without dead ends: 3115 [2020-11-11 18:17:30,679 INFO L749 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2020-11-11 18:17:30,696 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3115 states. [2020-11-11 18:17:30,790 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3115 to 3115. [2020-11-11 18:17:30,798 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3115 states, 3114 states have (on average 3.3371868978805397) internal successors, (10392), 3114 states have internal predecessors, (10392), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 18:17:30,823 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3115 states to 3115 states and 10392 transitions. [2020-11-11 18:17:30,824 INFO L78 Accepts]: Start accepts. Automaton has 3115 states and 10392 transitions. Word has length 45 [2020-11-11 18:17:30,824 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-11 18:17:30,825 INFO L481 AbstractCegarLoop]: Abstraction has 3115 states and 10392 transitions. [2020-11-11 18:17:30,825 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 7.5) internal successors, (45), 6 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 18:17:30,825 INFO L276 IsEmpty]: Start isEmpty. Operand 3115 states and 10392 transitions. [2020-11-11 18:17:30,837 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2020-11-11 18:17:30,837 INFO L486 BasicCegarLoop]: Found error trace [2020-11-11 18:17:30,837 INFO L494 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-11 18:17:30,837 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-11 18:17:30,837 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-11 18:17:30,838 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-11 18:17:30,838 INFO L82 PathProgramCache]: Analyzing trace with hash -1422766975, now seen corresponding path program 1 times [2020-11-11 18:17:30,838 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-11 18:17:30,839 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1873709386] [2020-11-11 18:17:30,839 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-11 18:17:30,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-11 18:17:31,007 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-11 18:17:31,007 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1873709386] [2020-11-11 18:17:31,008 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-11 18:17:31,008 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-11-11 18:17:31,008 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1394116310] [2020-11-11 18:17:31,009 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-11 18:17:31,009 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-11 18:17:31,010 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-11 18:17:31,010 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-11-11 18:17:31,010 INFO L87 Difference]: Start difference. First operand 3115 states and 10392 transitions. Second operand has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 6 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 18:17:31,216 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-11 18:17:31,216 INFO L93 Difference]: Finished difference Result 3903 states and 12811 transitions. [2020-11-11 18:17:31,217 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-11-11 18:17:31,217 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 6 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2020-11-11 18:17:31,218 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-11 18:17:31,241 INFO L225 Difference]: With dead ends: 3903 [2020-11-11 18:17:31,241 INFO L226 Difference]: Without dead ends: 2811 [2020-11-11 18:17:31,241 INFO L749 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2020-11-11 18:17:31,257 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2811 states. [2020-11-11 18:17:31,340 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2811 to 2811. [2020-11-11 18:17:31,356 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2811 states, 2810 states have (on average 3.279715302491103) internal successors, (9216), 2810 states have internal predecessors, (9216), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 18:17:31,372 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2811 states to 2811 states and 9216 transitions. [2020-11-11 18:17:31,372 INFO L78 Accepts]: Start accepts. Automaton has 2811 states and 9216 transitions. Word has length 47 [2020-11-11 18:17:31,372 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-11 18:17:31,372 INFO L481 AbstractCegarLoop]: Abstraction has 2811 states and 9216 transitions. [2020-11-11 18:17:31,375 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 6 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 18:17:31,376 INFO L276 IsEmpty]: Start isEmpty. Operand 2811 states and 9216 transitions. [2020-11-11 18:17:31,384 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2020-11-11 18:17:31,384 INFO L486 BasicCegarLoop]: Found error trace [2020-11-11 18:17:31,384 INFO L494 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-11 18:17:31,385 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-11-11 18:17:31,385 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-11 18:17:31,387 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-11 18:17:31,387 INFO L82 PathProgramCache]: Analyzing trace with hash 1775856222, now seen corresponding path program 1 times [2020-11-11 18:17:31,387 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-11 18:17:31,388 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [572162675] [2020-11-11 18:17:31,388 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-11 18:17:31,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-11 18:17:31,599 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-11 18:17:31,599 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [572162675] [2020-11-11 18:17:31,600 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-11 18:17:31,600 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-11-11 18:17:31,600 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [157525319] [2020-11-11 18:17:31,600 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-11-11 18:17:31,601 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-11 18:17:31,601 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-11-11 18:17:31,601 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-11-11 18:17:31,602 INFO L87 Difference]: Start difference. First operand 2811 states and 9216 transitions. Second operand has 7 states, 7 states have (on average 6.857142857142857) internal successors, (48), 7 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 18:17:31,785 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-11 18:17:31,785 INFO L93 Difference]: Finished difference Result 2835 states and 9001 transitions. [2020-11-11 18:17:31,786 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-11-11 18:17:31,786 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.857142857142857) internal successors, (48), 7 states have internal predecessors, (48), 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 48 [2020-11-11 18:17:31,786 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-11 18:17:31,802 INFO L225 Difference]: With dead ends: 2835 [2020-11-11 18:17:31,802 INFO L226 Difference]: Without dead ends: 1935 [2020-11-11 18:17:31,803 INFO L749 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=49, Invalid=107, Unknown=0, NotChecked=0, Total=156 [2020-11-11 18:17:31,812 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1935 states. [2020-11-11 18:17:31,863 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1935 to 1935. [2020-11-11 18:17:31,867 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1935 states, 1934 states have (on average 3.1199586349534645) internal successors, (6034), 1934 states have internal predecessors, (6034), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 18:17:31,875 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1935 states to 1935 states and 6034 transitions. [2020-11-11 18:17:31,876 INFO L78 Accepts]: Start accepts. Automaton has 1935 states and 6034 transitions. Word has length 48 [2020-11-11 18:17:31,876 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-11 18:17:31,876 INFO L481 AbstractCegarLoop]: Abstraction has 1935 states and 6034 transitions. [2020-11-11 18:17:31,877 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 6.857142857142857) internal successors, (48), 7 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 18:17:31,877 INFO L276 IsEmpty]: Start isEmpty. Operand 1935 states and 6034 transitions. [2020-11-11 18:17:31,882 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2020-11-11 18:17:31,882 INFO L486 BasicCegarLoop]: Found error trace [2020-11-11 18:17:31,882 INFO L494 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-11 18:17:31,882 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-11-11 18:17:31,883 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-11 18:17:31,883 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-11 18:17:31,883 INFO L82 PathProgramCache]: Analyzing trace with hash -2020113217, now seen corresponding path program 1 times [2020-11-11 18:17:31,884 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-11 18:17:31,884 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2037088932] [2020-11-11 18:17:31,884 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-11 18:17:31,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-11 18:17:32,013 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-11 18:17:32,013 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2037088932] [2020-11-11 18:17:32,014 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-11 18:17:32,014 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-11-11 18:17:32,014 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [493747308] [2020-11-11 18:17:32,014 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-11-11 18:17:32,015 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-11 18:17:32,015 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-11-11 18:17:32,016 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-11-11 18:17:32,016 INFO L87 Difference]: Start difference. First operand 1935 states and 6034 transitions. Second operand has 8 states, 8 states have (on average 6.25) internal successors, (50), 8 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 18:17:32,246 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-11 18:17:32,246 INFO L93 Difference]: Finished difference Result 1449 states and 4351 transitions. [2020-11-11 18:17:32,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-11-11 18:17:32,247 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.25) internal successors, (50), 8 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 50 [2020-11-11 18:17:32,248 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-11 18:17:32,255 INFO L225 Difference]: With dead ends: 1449 [2020-11-11 18:17:32,256 INFO L226 Difference]: Without dead ends: 981 [2020-11-11 18:17:32,256 INFO L749 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=61, Invalid=149, Unknown=0, NotChecked=0, Total=210 [2020-11-11 18:17:32,262 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 981 states. [2020-11-11 18:17:32,290 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 981 to 981. [2020-11-11 18:17:32,292 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 981 states, 980 states have (on average 2.9122448979591837) internal successors, (2854), 980 states have internal predecessors, (2854), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 18:17:32,297 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 981 states to 981 states and 2854 transitions. [2020-11-11 18:17:32,297 INFO L78 Accepts]: Start accepts. Automaton has 981 states and 2854 transitions. Word has length 50 [2020-11-11 18:17:32,297 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-11 18:17:32,298 INFO L481 AbstractCegarLoop]: Abstraction has 981 states and 2854 transitions. [2020-11-11 18:17:32,298 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 6.25) internal successors, (50), 8 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 18:17:32,298 INFO L276 IsEmpty]: Start isEmpty. Operand 981 states and 2854 transitions. [2020-11-11 18:17:32,302 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2020-11-11 18:17:32,303 INFO L486 BasicCegarLoop]: Found error trace [2020-11-11 18:17:32,303 INFO L494 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-11 18:17:32,304 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-11-11 18:17:32,304 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-11 18:17:32,304 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-11 18:17:32,304 INFO L82 PathProgramCache]: Analyzing trace with hash -54775455, now seen corresponding path program 1 times [2020-11-11 18:17:32,305 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-11 18:17:32,305 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [404546663] [2020-11-11 18:17:32,305 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-11 18:17:32,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-11 18:17:32,478 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-11 18:17:32,478 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [404546663] [2020-11-11 18:17:32,480 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-11 18:17:32,480 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-11-11 18:17:32,480 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1543208342] [2020-11-11 18:17:32,482 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-11-11 18:17:32,482 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-11 18:17:32,482 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-11-11 18:17:32,483 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-11-11 18:17:32,483 INFO L87 Difference]: Start difference. First operand 981 states and 2854 transitions. Second operand has 7 states, 7 states have (on average 7.714285714285714) internal successors, (54), 7 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 18:17:32,774 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-11 18:17:32,775 INFO L93 Difference]: Finished difference Result 1424 states and 4153 transitions. [2020-11-11 18:17:32,775 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-11-11 18:17:32,776 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.714285714285714) internal successors, (54), 7 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 54 [2020-11-11 18:17:32,776 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-11 18:17:32,784 INFO L225 Difference]: With dead ends: 1424 [2020-11-11 18:17:32,784 INFO L226 Difference]: Without dead ends: 831 [2020-11-11 18:17:32,784 INFO L749 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2020-11-11 18:17:32,789 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 831 states. [2020-11-11 18:17:32,812 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 831 to 831. [2020-11-11 18:17:32,814 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 831 states, 830 states have (on average 2.842168674698795) internal successors, (2359), 830 states have internal predecessors, (2359), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 18:17:32,818 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 831 states to 831 states and 2359 transitions. [2020-11-11 18:17:32,818 INFO L78 Accepts]: Start accepts. Automaton has 831 states and 2359 transitions. Word has length 54 [2020-11-11 18:17:32,818 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-11 18:17:32,819 INFO L481 AbstractCegarLoop]: Abstraction has 831 states and 2359 transitions. [2020-11-11 18:17:32,819 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 7.714285714285714) internal successors, (54), 7 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 18:17:32,819 INFO L276 IsEmpty]: Start isEmpty. Operand 831 states and 2359 transitions. [2020-11-11 18:17:32,822 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2020-11-11 18:17:32,822 INFO L486 BasicCegarLoop]: Found error trace [2020-11-11 18:17:32,822 INFO L494 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-11 18:17:32,823 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-11-11 18:17:32,823 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-11 18:17:32,824 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-11 18:17:32,824 INFO L82 PathProgramCache]: Analyzing trace with hash -1436109045, now seen corresponding path program 2 times [2020-11-11 18:17:32,824 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-11 18:17:32,825 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [607444246] [2020-11-11 18:17:32,825 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-11 18:17:32,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-11 18:17:33,013 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-11 18:17:33,014 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [607444246] [2020-11-11 18:17:33,014 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-11 18:17:33,014 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-11-11 18:17:33,015 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [837846413] [2020-11-11 18:17:33,015 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-11-11 18:17:33,015 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-11 18:17:33,022 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-11-11 18:17:33,022 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-11-11 18:17:33,022 INFO L87 Difference]: Start difference. First operand 831 states and 2359 transitions. Second operand has 7 states, 7 states have (on average 7.714285714285714) internal successors, (54), 7 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 18:17:33,139 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-11 18:17:33,140 INFO L93 Difference]: Finished difference Result 1354 states and 3902 transitions. [2020-11-11 18:17:33,140 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-11-11 18:17:33,140 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.714285714285714) internal successors, (54), 7 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 54 [2020-11-11 18:17:33,141 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-11 18:17:33,155 INFO L225 Difference]: With dead ends: 1354 [2020-11-11 18:17:33,157 INFO L226 Difference]: Without dead ends: 771 [2020-11-11 18:17:33,158 INFO L749 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2020-11-11 18:17:33,163 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 771 states. [2020-11-11 18:17:33,182 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 771 to 771. [2020-11-11 18:17:33,184 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 771 states, 770 states have (on average 2.82987012987013) internal successors, (2179), 770 states have internal predecessors, (2179), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 18:17:33,187 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 771 states to 771 states and 2179 transitions. [2020-11-11 18:17:33,187 INFO L78 Accepts]: Start accepts. Automaton has 771 states and 2179 transitions. Word has length 54 [2020-11-11 18:17:33,187 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-11 18:17:33,187 INFO L481 AbstractCegarLoop]: Abstraction has 771 states and 2179 transitions. [2020-11-11 18:17:33,188 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 7.714285714285714) internal successors, (54), 7 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 18:17:33,188 INFO L276 IsEmpty]: Start isEmpty. Operand 771 states and 2179 transitions. [2020-11-11 18:17:33,190 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2020-11-11 18:17:33,190 INFO L486 BasicCegarLoop]: Found error trace [2020-11-11 18:17:33,190 INFO L494 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-11 18:17:33,191 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-11-11 18:17:33,191 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-11 18:17:33,191 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-11 18:17:33,193 INFO L82 PathProgramCache]: Analyzing trace with hash 1423150337, now seen corresponding path program 3 times [2020-11-11 18:17:33,193 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-11 18:17:33,194 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [267854288] [2020-11-11 18:17:33,194 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-11 18:17:33,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-11 18:17:33,358 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-11 18:17:33,359 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [267854288] [2020-11-11 18:17:33,359 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-11 18:17:33,359 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-11-11 18:17:33,359 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1914233963] [2020-11-11 18:17:33,360 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-11-11 18:17:33,360 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-11 18:17:33,361 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-11-11 18:17:33,361 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-11-11 18:17:33,361 INFO L87 Difference]: Start difference. First operand 771 states and 2179 transitions. Second operand has 7 states, 7 states have (on average 7.714285714285714) internal successors, (54), 7 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 18:17:33,460 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-11 18:17:33,460 INFO L93 Difference]: Finished difference Result 663 states and 1855 transitions. [2020-11-11 18:17:33,461 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-11-11 18:17:33,461 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.714285714285714) internal successors, (54), 7 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 54 [2020-11-11 18:17:33,461 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-11 18:17:33,461 INFO L225 Difference]: With dead ends: 663 [2020-11-11 18:17:33,462 INFO L226 Difference]: Without dead ends: 0 [2020-11-11 18:17:33,462 INFO L749 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2020-11-11 18:17:33,462 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-11-11 18:17:33,462 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-11-11 18:17:33,463 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 18:17:33,463 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-11-11 18:17:33,463 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 54 [2020-11-11 18:17:33,463 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-11 18:17:33,465 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-11 18:17:33,465 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 7.714285714285714) internal successors, (54), 7 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 18:17:33,465 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-11-11 18:17:33,465 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-11 18:17:33,465 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-11-11 18:17:33,471 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.11 06:17:33 BasicIcfg [2020-11-11 18:17:33,471 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-11 18:17:33,479 INFO L168 Benchmark]: Toolchain (without parser) took 7228.95 ms. Allocated memory was 302.0 MB in the beginning and 641.7 MB in the end (delta: 339.7 MB). Free memory was 276.9 MB in the beginning and 416.0 MB in the end (delta: -139.1 MB). Peak memory consumption was 203.4 MB. Max. memory is 16.0 GB. [2020-11-11 18:17:33,480 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 302.0 MB. Free memory is still 272.2 MB. There was no memory consumed. Max. memory is 16.0 GB. [2020-11-11 18:17:33,481 INFO L168 Benchmark]: CACSL2BoogieTranslator took 568.83 ms. Allocated memory is still 302.0 MB. Free memory was 276.2 MB in the beginning and 245.6 MB in the end (delta: 30.6 MB). Peak memory consumption was 29.4 MB. Max. memory is 16.0 GB. [2020-11-11 18:17:33,482 INFO L168 Benchmark]: Boogie Procedure Inliner took 55.30 ms. Allocated memory is still 302.0 MB. Free memory was 245.6 MB in the beginning and 243.6 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2020-11-11 18:17:33,483 INFO L168 Benchmark]: Boogie Preprocessor took 30.79 ms. Allocated memory is still 302.0 MB. Free memory was 243.6 MB in the beginning and 242.1 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2020-11-11 18:17:33,483 INFO L168 Benchmark]: RCFGBuilder took 527.70 ms. Allocated memory is still 302.0 MB. Free memory was 242.1 MB in the beginning and 264.4 MB in the end (delta: -22.3 MB). Peak memory consumption was 4.7 MB. Max. memory is 16.0 GB. [2020-11-11 18:17:33,486 INFO L168 Benchmark]: TraceAbstraction took 6030.74 ms. Allocated memory was 302.0 MB in the beginning and 641.7 MB in the end (delta: 339.7 MB). Free memory was 264.4 MB in the beginning and 416.0 MB in the end (delta: -151.5 MB). Peak memory consumption was 190.3 MB. Max. memory is 16.0 GB. [2020-11-11 18:17:33,497 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 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 568.83 ms. Allocated memory is still 302.0 MB. Free memory was 276.2 MB in the beginning and 245.6 MB in the end (delta: 30.6 MB). Peak memory consumption was 29.4 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 55.30 ms. Allocated memory is still 302.0 MB. Free memory was 245.6 MB in the beginning and 243.6 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 30.79 ms. Allocated memory is still 302.0 MB. Free memory was 243.6 MB in the beginning and 242.1 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * RCFGBuilder took 527.70 ms. Allocated memory is still 302.0 MB. Free memory was 242.1 MB in the beginning and 264.4 MB in the end (delta: -22.3 MB). Peak memory consumption was 4.7 MB. Max. memory is 16.0 GB. * TraceAbstraction took 6030.74 ms. Allocated memory was 302.0 MB in the beginning and 641.7 MB in the end (delta: 339.7 MB). Free memory was 264.4 MB in the beginning and 416.0 MB in the end (delta: -151.5 MB). Peak memory consumption was 190.3 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: 5.9s, OverallIterations: 8, TraceHistogramMax: 1, AutomataDifference: 2.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.8s, HoareTripleCheckerStatistics: 747 SDtfs, 1007 SDslu, 2501 SDs, 0 SdLazy, 310 SolverSat, 53 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 97 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 78 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 1.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=9848occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.8s AutomataMinimizationTime, 8 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.2s InterpolantComputationTime, 394 NumberOfCodeBlocks, 394 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 386 ConstructedInterpolants, 0 QuantifiedInterpolants, 45628 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 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...