/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-NoLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-wmm/mix045_tso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-0e22065b97d0a1f8b3904e080cebe0f05e88d2b7-0e22065 [2021-06-10 12:16:41,731 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-06-10 12:16:41,734 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-06-10 12:16:41,778 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-06-10 12:16:41,779 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-06-10 12:16:41,782 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-06-10 12:16:41,785 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-06-10 12:16:41,791 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-06-10 12:16:41,793 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-06-10 12:16:41,795 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-06-10 12:16:41,796 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-06-10 12:16:41,797 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-06-10 12:16:41,797 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-06-10 12:16:41,798 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-06-10 12:16:41,799 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-06-10 12:16:41,799 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-06-10 12:16:41,800 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-06-10 12:16:41,801 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-06-10 12:16:41,802 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-06-10 12:16:41,803 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-06-10 12:16:41,804 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-06-10 12:16:41,805 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-06-10 12:16:41,806 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-06-10 12:16:41,807 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-06-10 12:16:41,809 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-06-10 12:16:41,809 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-06-10 12:16:41,809 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-06-10 12:16:41,810 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-06-10 12:16:41,810 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-06-10 12:16:41,811 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-06-10 12:16:41,811 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-06-10 12:16:41,812 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-06-10 12:16:41,812 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-06-10 12:16:41,813 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-06-10 12:16:41,814 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-06-10 12:16:41,814 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-06-10 12:16:41,815 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-06-10 12:16:41,815 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-06-10 12:16:41,815 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-06-10 12:16:41,816 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-06-10 12:16:41,816 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-06-10 12:16:41,817 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-PN-NoLbe.epf [2021-06-10 12:16:41,835 INFO L113 SettingsManager]: Loading preferences was successful [2021-06-10 12:16:41,835 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-06-10 12:16:41,836 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-06-10 12:16:41,836 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-06-10 12:16:41,837 INFO L138 SettingsManager]: * Use SBE=true [2021-06-10 12:16:41,837 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-06-10 12:16:41,837 INFO L138 SettingsManager]: * sizeof long=4 [2021-06-10 12:16:41,837 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-06-10 12:16:41,837 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-06-10 12:16:41,838 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-06-10 12:16:41,838 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-06-10 12:16:41,838 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-06-10 12:16:41,838 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-06-10 12:16:41,838 INFO L138 SettingsManager]: * sizeof long double=12 [2021-06-10 12:16:41,838 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-06-10 12:16:41,839 INFO L138 SettingsManager]: * Use constant arrays=true [2021-06-10 12:16:41,839 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-06-10 12:16:41,839 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-06-10 12:16:41,839 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-06-10 12:16:41,839 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-06-10 12:16:41,840 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-06-10 12:16:41,840 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-06-10 12:16:41,840 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-06-10 12:16:41,840 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-06-10 12:16:41,840 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-06-10 12:16:41,841 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-06-10 12:16:41,841 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-06-10 12:16:41,841 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-06-10 12:16:41,841 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-06-10 12:16:41,841 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-06-10 12:16:42,107 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-06-10 12:16:42,128 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-06-10 12:16:42,130 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-06-10 12:16:42,131 INFO L271 PluginConnector]: Initializing CDTParser... [2021-06-10 12:16:42,132 INFO L275 PluginConnector]: CDTParser initialized [2021-06-10 12:16:42,132 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/mix045_tso.oepc.i [2021-06-10 12:16:42,197 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a0d4bebb3/e8b3c039b92c4ed89734d1c192ec5cea/FLAGec6bb4259 [2021-06-10 12:16:42,757 INFO L306 CDTParser]: Found 1 translation units. [2021-06-10 12:16:42,757 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/mix045_tso.oepc.i [2021-06-10 12:16:42,773 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a0d4bebb3/e8b3c039b92c4ed89734d1c192ec5cea/FLAGec6bb4259 [2021-06-10 12:16:43,083 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a0d4bebb3/e8b3c039b92c4ed89734d1c192ec5cea [2021-06-10 12:16:43,085 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-06-10 12:16:43,086 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-06-10 12:16:43,090 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-06-10 12:16:43,090 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-06-10 12:16:43,093 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-06-10 12:16:43,094 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.06 12:16:43" (1/1) ... [2021-06-10 12:16:43,095 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1e28115a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.06 12:16:43, skipping insertion in model container [2021-06-10 12:16:43,095 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.06 12:16:43" (1/1) ... [2021-06-10 12:16:43,105 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-06-10 12:16:43,145 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-06-10 12:16:43,281 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/mix045_tso.oepc.i[949,962] [2021-06-10 12:16:43,442 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-06-10 12:16:43,450 INFO L203 MainTranslator]: Completed pre-run [2021-06-10 12:16:43,459 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/mix045_tso.oepc.i[949,962] [2021-06-10 12:16:43,492 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-06-10 12:16:43,544 INFO L208 MainTranslator]: Completed translation [2021-06-10 12:16:43,544 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.06 12:16:43 WrapperNode [2021-06-10 12:16:43,544 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-06-10 12:16:43,545 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-06-10 12:16:43,545 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-06-10 12:16:43,546 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-06-10 12:16:43,551 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.06 12:16:43" (1/1) ... [2021-06-10 12:16:43,565 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.06 12:16:43" (1/1) ... [2021-06-10 12:16:43,589 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-06-10 12:16:43,590 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-06-10 12:16:43,590 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-06-10 12:16:43,590 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-06-10 12:16:43,597 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.06 12:16:43" (1/1) ... [2021-06-10 12:16:43,598 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.06 12:16:43" (1/1) ... [2021-06-10 12:16:43,601 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.06 12:16:43" (1/1) ... [2021-06-10 12:16:43,601 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.06 12:16:43" (1/1) ... [2021-06-10 12:16:43,608 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.06 12:16:43" (1/1) ... [2021-06-10 12:16:43,611 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.06 12:16:43" (1/1) ... [2021-06-10 12:16:43,614 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.06 12:16:43" (1/1) ... [2021-06-10 12:16:43,618 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-06-10 12:16:43,618 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-06-10 12:16:43,618 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-06-10 12:16:43,619 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-06-10 12:16:43,619 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.06 12:16:43" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-06-10 12:16:43,694 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-06-10 12:16:43,694 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-06-10 12:16:43,695 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-06-10 12:16:43,695 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-06-10 12:16:43,695 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2021-06-10 12:16:43,696 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2021-06-10 12:16:43,696 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2021-06-10 12:16:43,697 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2021-06-10 12:16:43,697 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2021-06-10 12:16:43,697 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2021-06-10 12:16:43,697 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-06-10 12:16:43,697 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-06-10 12:16:43,697 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-06-10 12:16:43,698 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-06-10 12:16:43,699 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-06-10 12:16:45,373 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-06-10 12:16:45,374 INFO L299 CfgBuilder]: Removed 10 assume(true) statements. [2021-06-10 12:16:45,375 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.06 12:16:45 BoogieIcfgContainer [2021-06-10 12:16:45,376 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-06-10 12:16:45,377 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-06-10 12:16:45,377 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-06-10 12:16:45,379 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-06-10 12:16:45,379 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.06 12:16:43" (1/3) ... [2021-06-10 12:16:45,380 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@22fb08fb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.06 12:16:45, skipping insertion in model container [2021-06-10 12:16:45,380 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.06 12:16:43" (2/3) ... [2021-06-10 12:16:45,380 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@22fb08fb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.06 12:16:45, skipping insertion in model container [2021-06-10 12:16:45,380 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.06 12:16:45" (3/3) ... [2021-06-10 12:16:45,381 INFO L111 eAbstractionObserver]: Analyzing ICFG mix045_tso.oepc.i [2021-06-10 12:16:45,386 INFO L149 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-06-10 12:16:45,390 INFO L161 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2021-06-10 12:16:45,390 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-06-10 12:16:45,420 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 12:16:45,421 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 12:16:45,421 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 12:16:45,421 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 12:16:45,421 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 12:16:45,421 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 12:16:45,421 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 12:16:45,421 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 12:16:45,422 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 12:16:45,422 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 12:16:45,422 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 12:16:45,422 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 12:16:45,422 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 12:16:45,422 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 12:16:45,423 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 12:16:45,423 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 12:16:45,423 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 12:16:45,423 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 12:16:45,423 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 12:16:45,423 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 12:16:45,423 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 12:16:45,423 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 12:16:45,424 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 12:16:45,424 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 12:16:45,424 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 12:16:45,424 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 12:16:45,424 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 12:16:45,424 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 12:16:45,425 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 12:16:45,425 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 12:16:45,425 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 12:16:45,425 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 12:16:45,425 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 12:16:45,425 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 12:16:45,425 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 12:16:45,426 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 12:16:45,426 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 12:16:45,426 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 12:16:45,426 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 12:16:45,427 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 12:16:45,427 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 12:16:45,427 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 12:16:45,427 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 12:16:45,427 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 12:16:45,427 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 12:16:45,427 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 12:16:45,427 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 12:16:45,428 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 12:16:45,428 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 12:16:45,428 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 12:16:45,428 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 12:16:45,428 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 12:16:45,428 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 12:16:45,428 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 12:16:45,429 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 12:16:45,429 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 12:16:45,429 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 12:16:45,429 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 12:16:45,429 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 12:16:45,429 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 12:16:45,429 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 12:16:45,430 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 12:16:45,430 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 12:16:45,430 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 12:16:45,430 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 12:16:45,430 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 12:16:45,430 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 12:16:45,431 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 12:16:45,431 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 12:16:45,431 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 12:16:45,431 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 12:16:45,431 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 12:16:45,433 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 12:16:45,433 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 12:16:45,433 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 12:16:45,434 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 12:16:45,435 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 12:16:45,435 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 12:16:45,435 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 12:16:45,435 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 12:16:45,436 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 12:16:45,436 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 12:16:45,436 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 12:16:45,436 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 12:16:45,436 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 12:16:45,436 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 12:16:45,437 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 12:16:45,438 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 12:16:45,438 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 12:16:45,438 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 12:16:45,438 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 12:16:45,438 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 12:16:45,438 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 12:16:45,438 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 12:16:45,439 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 12:16:45,439 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 12:16:45,439 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 12:16:45,439 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 12:16:45,440 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-06-10 12:16:45,456 INFO L253 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2021-06-10 12:16:45,473 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-06-10 12:16:45,473 INFO L377 AbstractCegarLoop]: Hoare is false [2021-06-10 12:16:45,473 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-06-10 12:16:45,474 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-06-10 12:16:45,474 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-06-10 12:16:45,474 INFO L381 AbstractCegarLoop]: Difference is false [2021-06-10 12:16:45,474 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-06-10 12:16:45,474 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-06-10 12:16:45,483 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 108 places, 100 transitions, 215 flow [2021-06-10 12:16:45,514 INFO L129 PetriNetUnfolder]: 2/97 cut-off events. [2021-06-10 12:16:45,514 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-06-10 12:16:45,517 INFO L84 FinitePrefix]: Finished finitePrefix Result has 107 conditions, 97 events. 2/97 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 66 event pairs, 0 based on Foata normal form. 0/93 useless extension candidates. Maximal degree in co-relation 62. Up to 2 conditions per place. [2021-06-10 12:16:45,518 INFO L82 GeneralOperation]: Start removeDead. Operand has 108 places, 100 transitions, 215 flow [2021-06-10 12:16:45,522 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 105 places, 97 transitions, 203 flow [2021-06-10 12:16:45,533 INFO L129 PetriNetUnfolder]: 0/61 cut-off events. [2021-06-10 12:16:45,533 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-06-10 12:16:45,533 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-10 12:16:45,534 INFO L263 CegarLoopForPetriNet]: 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] [2021-06-10 12:16:45,534 INFO L428 AbstractCegarLoop]: === Iteration 1 === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-10 12:16:45,538 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-10 12:16:45,538 INFO L82 PathProgramCache]: Analyzing trace with hash -407483969, now seen corresponding path program 1 times [2021-06-10 12:16:45,545 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-10 12:16:45,546 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1653383411] [2021-06-10 12:16:45,546 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-10 12:16:45,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-10 12:16:45,807 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:16:45,808 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 12:16:45,809 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:16:45,809 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-10 12:16:45,819 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-10 12:16:45,820 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1653383411] [2021-06-10 12:16:45,820 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-10 12:16:45,820 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-06-10 12:16:45,822 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2138639208] [2021-06-10 12:16:45,831 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-06-10 12:16:45,831 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-10 12:16:45,842 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-06-10 12:16:45,845 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-06-10 12:16:45,848 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 90 out of 100 [2021-06-10 12:16:45,853 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 105 places, 97 transitions, 203 flow. Second operand has 3 states, 3 states have (on average 90.66666666666667) internal successors, (272), 3 states have internal predecessors, (272), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-10 12:16:45,853 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-10 12:16:45,853 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 90 of 100 [2021-06-10 12:16:45,854 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-10 12:16:45,982 INFO L129 PetriNetUnfolder]: 16/211 cut-off events. [2021-06-10 12:16:45,982 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-06-10 12:16:45,984 INFO L84 FinitePrefix]: Finished finitePrefix Result has 256 conditions, 211 events. 16/211 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 690 event pairs, 6 based on Foata normal form. 9/209 useless extension candidates. Maximal degree in co-relation 209. Up to 27 conditions per place. [2021-06-10 12:16:45,986 INFO L132 encePairwiseOnDemand]: 95/100 looper letters, 7 selfloop transitions, 2 changer transitions 0/96 dead transitions. [2021-06-10 12:16:45,986 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 105 places, 96 transitions, 219 flow [2021-06-10 12:16:45,987 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-10 12:16:45,989 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-06-10 12:16:45,998 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 284 transitions. [2021-06-10 12:16:46,002 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.9466666666666667 [2021-06-10 12:16:46,003 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 284 transitions. [2021-06-10 12:16:46,003 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 284 transitions. [2021-06-10 12:16:46,006 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-10 12:16:46,008 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 284 transitions. [2021-06-10 12:16:46,013 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 94.66666666666667) internal successors, (284), 3 states have internal predecessors, (284), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-10 12:16:46,020 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 100.0) internal successors, (400), 4 states have internal predecessors, (400), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-10 12:16:46,020 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 100.0) internal successors, (400), 4 states have internal predecessors, (400), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-10 12:16:46,021 INFO L185 Difference]: Start difference. First operand has 105 places, 97 transitions, 203 flow. Second operand 3 states and 284 transitions. [2021-06-10 12:16:46,022 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 105 places, 96 transitions, 219 flow [2021-06-10 12:16:46,026 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 102 places, 96 transitions, 216 flow, removed 0 selfloop flow, removed 3 redundant places. [2021-06-10 12:16:46,029 INFO L241 Difference]: Finished difference. Result has 102 places, 93 transitions, 196 flow [2021-06-10 12:16:46,031 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=100, PETRI_DIFFERENCE_MINUEND_FLOW=192, PETRI_DIFFERENCE_MINUEND_PLACES=100, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=93, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=91, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=196, PETRI_PLACES=102, PETRI_TRANSITIONS=93} [2021-06-10 12:16:46,032 INFO L343 CegarLoopForPetriNet]: 105 programPoint places, -3 predicate places. [2021-06-10 12:16:46,032 INFO L480 AbstractCegarLoop]: Abstraction has has 102 places, 93 transitions, 196 flow [2021-06-10 12:16:46,032 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 90.66666666666667) internal successors, (272), 3 states have internal predecessors, (272), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-10 12:16:46,032 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-10 12:16:46,032 INFO L263 CegarLoopForPetriNet]: 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, 1, 1, 1, 1, 1, 1] [2021-06-10 12:16:46,033 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-06-10 12:16:46,033 INFO L428 AbstractCegarLoop]: === Iteration 2 === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-10 12:16:46,033 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-10 12:16:46,033 INFO L82 PathProgramCache]: Analyzing trace with hash 58571660, now seen corresponding path program 1 times [2021-06-10 12:16:46,034 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-10 12:16:46,034 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [340849215] [2021-06-10 12:16:46,034 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-10 12:16:46,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-10 12:16:46,229 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:16:46,229 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 12:16:46,230 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:16:46,230 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-10 12:16:46,243 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-06-10 12:16:46,244 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-06-10 12:16:46,258 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:16:46,259 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-10 12:16:46,266 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:16:46,267 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-10 12:16:46,274 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:16:46,275 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 12:16:46,275 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-10 12:16:46,275 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [340849215] [2021-06-10 12:16:46,276 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-10 12:16:46,276 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-06-10 12:16:46,276 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [271607258] [2021-06-10 12:16:46,277 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-06-10 12:16:46,277 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-10 12:16:46,278 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-06-10 12:16:46,278 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-06-10 12:16:46,279 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 87 out of 100 [2021-06-10 12:16:46,280 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 102 places, 93 transitions, 196 flow. Second operand has 6 states, 6 states have (on average 88.16666666666667) internal successors, (529), 6 states have internal predecessors, (529), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-10 12:16:46,280 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-10 12:16:46,280 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 87 of 100 [2021-06-10 12:16:46,280 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-10 12:16:46,415 INFO L129 PetriNetUnfolder]: 30/245 cut-off events. [2021-06-10 12:16:46,415 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-06-10 12:16:46,418 INFO L84 FinitePrefix]: Finished finitePrefix Result has 329 conditions, 245 events. 30/245 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 948 event pairs, 6 based on Foata normal form. 0/239 useless extension candidates. Maximal degree in co-relation 285. Up to 36 conditions per place. [2021-06-10 12:16:46,419 INFO L132 encePairwiseOnDemand]: 93/100 looper letters, 8 selfloop transitions, 3 changer transitions 31/116 dead transitions. [2021-06-10 12:16:46,419 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 110 places, 116 transitions, 308 flow [2021-06-10 12:16:46,420 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-10 12:16:46,420 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-06-10 12:16:46,422 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 818 transitions. [2021-06-10 12:16:46,422 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.9088888888888889 [2021-06-10 12:16:46,423 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 818 transitions. [2021-06-10 12:16:46,423 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 818 transitions. [2021-06-10 12:16:46,423 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-10 12:16:46,423 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 818 transitions. [2021-06-10 12:16:46,425 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 90.88888888888889) internal successors, (818), 9 states have internal predecessors, (818), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-10 12:16:46,429 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 100.0) internal successors, (1000), 10 states have internal predecessors, (1000), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-10 12:16:46,429 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 100.0) internal successors, (1000), 10 states have internal predecessors, (1000), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-10 12:16:46,430 INFO L185 Difference]: Start difference. First operand has 102 places, 93 transitions, 196 flow. Second operand 9 states and 818 transitions. [2021-06-10 12:16:46,430 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 110 places, 116 transitions, 308 flow [2021-06-10 12:16:46,431 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 108 places, 116 transitions, 304 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-06-10 12:16:46,433 INFO L241 Difference]: Finished difference. Result has 115 places, 85 transitions, 215 flow [2021-06-10 12:16:46,433 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=100, PETRI_DIFFERENCE_MINUEND_FLOW=192, PETRI_DIFFERENCE_MINUEND_PLACES=100, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=93, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=90, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=215, PETRI_PLACES=115, PETRI_TRANSITIONS=85} [2021-06-10 12:16:46,434 INFO L343 CegarLoopForPetriNet]: 105 programPoint places, 10 predicate places. [2021-06-10 12:16:46,434 INFO L480 AbstractCegarLoop]: Abstraction has has 115 places, 85 transitions, 215 flow [2021-06-10 12:16:46,435 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 88.16666666666667) internal successors, (529), 6 states have internal predecessors, (529), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-10 12:16:46,435 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-10 12:16:46,435 INFO L263 CegarLoopForPetriNet]: 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, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-10 12:16:46,435 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-06-10 12:16:46,435 INFO L428 AbstractCegarLoop]: === Iteration 3 === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-10 12:16:46,445 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-10 12:16:46,445 INFO L82 PathProgramCache]: Analyzing trace with hash -1551351091, now seen corresponding path program 1 times [2021-06-10 12:16:46,445 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-10 12:16:46,445 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [419109230] [2021-06-10 12:16:46,445 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-10 12:16:46,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-10 12:16:46,568 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:16:46,568 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 12:16:46,569 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:16:46,569 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-10 12:16:46,573 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-06-10 12:16:46,578 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-06-10 12:16:46,595 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:16:46,595 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-10 12:16:46,605 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:16:46,606 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-10 12:16:46,616 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:16:46,616 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 12:16:46,618 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-10 12:16:46,618 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [419109230] [2021-06-10 12:16:46,618 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-10 12:16:46,618 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-06-10 12:16:46,618 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1821294549] [2021-06-10 12:16:46,619 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-06-10 12:16:46,619 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-10 12:16:46,621 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-06-10 12:16:46,621 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-06-10 12:16:46,623 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 88 out of 100 [2021-06-10 12:16:46,623 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 115 places, 85 transitions, 215 flow. Second operand has 6 states, 6 states have (on average 89.16666666666667) internal successors, (535), 6 states have internal predecessors, (535), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-10 12:16:46,624 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-10 12:16:46,624 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 88 of 100 [2021-06-10 12:16:46,624 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-10 12:16:46,786 INFO L129 PetriNetUnfolder]: 28/187 cut-off events. [2021-06-10 12:16:46,786 INFO L130 PetriNetUnfolder]: For 172/173 co-relation queries the response was YES. [2021-06-10 12:16:46,787 INFO L84 FinitePrefix]: Finished finitePrefix Result has 388 conditions, 187 events. 28/187 cut-off events. For 172/173 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 602 event pairs, 9 based on Foata normal form. 6/187 useless extension candidates. Maximal degree in co-relation 353. Up to 31 conditions per place. [2021-06-10 12:16:46,788 INFO L132 encePairwiseOnDemand]: 94/100 looper letters, 6 selfloop transitions, 2 changer transitions 10/95 dead transitions. [2021-06-10 12:16:46,788 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 107 places, 95 transitions, 289 flow [2021-06-10 12:16:46,788 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-10 12:16:46,789 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-06-10 12:16:46,791 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 812 transitions. [2021-06-10 12:16:46,791 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.9022222222222223 [2021-06-10 12:16:46,791 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 812 transitions. [2021-06-10 12:16:46,791 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 812 transitions. [2021-06-10 12:16:46,792 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-10 12:16:46,792 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 812 transitions. [2021-06-10 12:16:46,794 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 90.22222222222223) internal successors, (812), 9 states have internal predecessors, (812), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-10 12:16:46,796 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 100.0) internal successors, (1000), 10 states have internal predecessors, (1000), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-10 12:16:46,796 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 100.0) internal successors, (1000), 10 states have internal predecessors, (1000), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-10 12:16:46,796 INFO L185 Difference]: Start difference. First operand has 115 places, 85 transitions, 215 flow. Second operand 9 states and 812 transitions. [2021-06-10 12:16:46,796 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 107 places, 95 transitions, 289 flow [2021-06-10 12:16:46,801 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 103 places, 95 transitions, 272 flow, removed 7 selfloop flow, removed 4 redundant places. [2021-06-10 12:16:46,804 INFO L241 Difference]: Finished difference. Result has 110 places, 85 transitions, 226 flow [2021-06-10 12:16:46,805 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=100, PETRI_DIFFERENCE_MINUEND_FLOW=206, PETRI_DIFFERENCE_MINUEND_PLACES=95, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=85, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=83, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=226, PETRI_PLACES=110, PETRI_TRANSITIONS=85} [2021-06-10 12:16:46,805 INFO L343 CegarLoopForPetriNet]: 105 programPoint places, 5 predicate places. [2021-06-10 12:16:46,805 INFO L480 AbstractCegarLoop]: Abstraction has has 110 places, 85 transitions, 226 flow [2021-06-10 12:16:46,806 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 89.16666666666667) internal successors, (535), 6 states have internal predecessors, (535), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-10 12:16:46,806 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-10 12:16:46,806 INFO L263 CegarLoopForPetriNet]: 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-10 12:16:46,806 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-06-10 12:16:46,807 INFO L428 AbstractCegarLoop]: === Iteration 4 === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-10 12:16:46,808 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-10 12:16:46,808 INFO L82 PathProgramCache]: Analyzing trace with hash -1700996752, now seen corresponding path program 1 times [2021-06-10 12:16:46,809 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-10 12:16:46,809 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1289866633] [2021-06-10 12:16:46,809 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-10 12:16:46,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-10 12:16:46,966 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:16:46,967 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 12:16:46,967 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:16:46,968 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-10 12:16:46,971 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:16:46,972 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-10 12:16:46,978 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:16:46,980 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-10 12:16:46,991 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:16:46,992 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-10 12:16:47,008 INFO L142 QuantifierPusher]: treesize reduction 11, result has 81.4 percent of original size [2021-06-10 12:16:47,012 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 48 [2021-06-10 12:16:47,044 INFO L142 QuantifierPusher]: treesize reduction 37, result has 65.1 percent of original size [2021-06-10 12:16:47,046 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-06-10 12:16:47,080 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-06-10 12:16:47,081 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-06-10 12:16:47,099 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:16:47,100 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-10 12:16:47,110 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:16:47,111 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-10 12:16:47,122 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:16:47,123 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 12:16:47,123 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-10 12:16:47,123 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1289866633] [2021-06-10 12:16:47,124 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-10 12:16:47,124 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-06-10 12:16:47,124 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1214712947] [2021-06-10 12:16:47,124 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-06-10 12:16:47,125 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-10 12:16:47,125 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-06-10 12:16:47,125 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2021-06-10 12:16:47,127 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 79 out of 100 [2021-06-10 12:16:47,128 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 110 places, 85 transitions, 226 flow. Second operand has 11 states, 11 states have (on average 80.18181818181819) internal successors, (882), 11 states have internal predecessors, (882), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-10 12:16:47,128 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-10 12:16:47,128 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 79 of 100 [2021-06-10 12:16:47,128 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-10 12:16:47,469 INFO L129 PetriNetUnfolder]: 166/530 cut-off events. [2021-06-10 12:16:47,470 INFO L130 PetriNetUnfolder]: For 568/568 co-relation queries the response was YES. [2021-06-10 12:16:47,473 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1207 conditions, 530 events. 166/530 cut-off events. For 568/568 co-relation queries the response was YES. Maximal size of possible extension queue 51. Compared 3025 event pairs, 62 based on Foata normal form. 14/524 useless extension candidates. Maximal degree in co-relation 1144. Up to 162 conditions per place. [2021-06-10 12:16:47,475 INFO L132 encePairwiseOnDemand]: 88/100 looper letters, 13 selfloop transitions, 9 changer transitions 22/113 dead transitions. [2021-06-10 12:16:47,475 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 117 places, 113 transitions, 398 flow [2021-06-10 12:16:47,476 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-06-10 12:16:47,476 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2021-06-10 12:16:47,478 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 1152 transitions. [2021-06-10 12:16:47,479 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8228571428571428 [2021-06-10 12:16:47,479 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 1152 transitions. [2021-06-10 12:16:47,479 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 1152 transitions. [2021-06-10 12:16:47,480 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-10 12:16:47,480 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 1152 transitions. [2021-06-10 12:16:47,482 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 82.28571428571429) internal successors, (1152), 14 states have internal predecessors, (1152), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-10 12:16:47,484 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 100.0) internal successors, (1500), 15 states have internal predecessors, (1500), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-10 12:16:47,485 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 100.0) internal successors, (1500), 15 states have internal predecessors, (1500), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-10 12:16:47,485 INFO L185 Difference]: Start difference. First operand has 110 places, 85 transitions, 226 flow. Second operand 14 states and 1152 transitions. [2021-06-10 12:16:47,485 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 117 places, 113 transitions, 398 flow [2021-06-10 12:16:47,489 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 109 places, 113 transitions, 366 flow, removed 14 selfloop flow, removed 8 redundant places. [2021-06-10 12:16:47,491 INFO L241 Difference]: Finished difference. Result has 117 places, 89 transitions, 268 flow [2021-06-10 12:16:47,492 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=100, PETRI_DIFFERENCE_MINUEND_FLOW=210, PETRI_DIFFERENCE_MINUEND_PLACES=96, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=85, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=77, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=268, PETRI_PLACES=117, PETRI_TRANSITIONS=89} [2021-06-10 12:16:47,492 INFO L343 CegarLoopForPetriNet]: 105 programPoint places, 12 predicate places. [2021-06-10 12:16:47,492 INFO L480 AbstractCegarLoop]: Abstraction has has 117 places, 89 transitions, 268 flow [2021-06-10 12:16:47,494 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 80.18181818181819) internal successors, (882), 11 states have internal predecessors, (882), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-10 12:16:47,494 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-10 12:16:47,495 INFO L263 CegarLoopForPetriNet]: 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-10 12:16:47,495 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-06-10 12:16:47,500 INFO L428 AbstractCegarLoop]: === Iteration 5 === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-10 12:16:47,501 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-10 12:16:47,501 INFO L82 PathProgramCache]: Analyzing trace with hash -646753128, now seen corresponding path program 1 times [2021-06-10 12:16:47,501 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-10 12:16:47,501 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1426305438] [2021-06-10 12:16:47,501 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-10 12:16:47,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-10 12:16:47,646 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:16:47,646 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 12:16:47,647 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:16:47,648 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-10 12:16:47,652 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:16:47,652 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-10 12:16:47,661 INFO L142 QuantifierPusher]: treesize reduction 10, result has 81.5 percent of original size [2021-06-10 12:16:47,663 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-06-10 12:16:47,669 INFO L142 QuantifierPusher]: treesize reduction 10, result has 82.5 percent of original size [2021-06-10 12:16:47,671 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-06-10 12:16:47,695 INFO L142 QuantifierPusher]: treesize reduction 36, result has 65.4 percent of original size [2021-06-10 12:16:47,702 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 68 [2021-06-10 12:16:47,732 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-06-10 12:16:47,734 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-06-10 12:16:47,750 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:16:47,751 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-10 12:16:47,760 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:16:47,764 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-10 12:16:47,774 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:16:47,774 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 12:16:47,776 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-10 12:16:47,776 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1426305438] [2021-06-10 12:16:47,777 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-10 12:16:47,777 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-10 12:16:47,777 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [161067791] [2021-06-10 12:16:47,778 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-10 12:16:47,778 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-10 12:16:47,779 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-10 12:16:47,779 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-06-10 12:16:47,782 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 80 out of 100 [2021-06-10 12:16:47,783 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 117 places, 89 transitions, 268 flow. Second operand has 9 states, 9 states have (on average 81.44444444444444) internal successors, (733), 9 states have internal predecessors, (733), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-10 12:16:47,783 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-10 12:16:47,783 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 80 of 100 [2021-06-10 12:16:47,783 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-10 12:16:48,125 INFO L129 PetriNetUnfolder]: 145/465 cut-off events. [2021-06-10 12:16:48,125 INFO L130 PetriNetUnfolder]: For 848/853 co-relation queries the response was YES. [2021-06-10 12:16:48,127 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1299 conditions, 465 events. 145/465 cut-off events. For 848/853 co-relation queries the response was YES. Maximal size of possible extension queue 41. Compared 2462 event pairs, 31 based on Foata normal form. 9/460 useless extension candidates. Maximal degree in co-relation 1231. Up to 158 conditions per place. [2021-06-10 12:16:48,129 INFO L132 encePairwiseOnDemand]: 89/100 looper letters, 17 selfloop transitions, 10 changer transitions 19/116 dead transitions. [2021-06-10 12:16:48,129 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 122 places, 116 transitions, 502 flow [2021-06-10 12:16:48,130 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-06-10 12:16:48,131 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2021-06-10 12:16:48,132 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 1005 transitions. [2021-06-10 12:16:48,133 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8375 [2021-06-10 12:16:48,133 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 1005 transitions. [2021-06-10 12:16:48,133 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 1005 transitions. [2021-06-10 12:16:48,133 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-10 12:16:48,134 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 1005 transitions. [2021-06-10 12:16:48,135 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 83.75) internal successors, (1005), 12 states have internal predecessors, (1005), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-10 12:16:48,137 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 100.0) internal successors, (1300), 13 states have internal predecessors, (1300), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-10 12:16:48,138 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 100.0) internal successors, (1300), 13 states have internal predecessors, (1300), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-10 12:16:48,138 INFO L185 Difference]: Start difference. First operand has 117 places, 89 transitions, 268 flow. Second operand 12 states and 1005 transitions. [2021-06-10 12:16:48,138 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 122 places, 116 transitions, 502 flow [2021-06-10 12:16:48,140 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 115 places, 116 transitions, 480 flow, removed 7 selfloop flow, removed 7 redundant places. [2021-06-10 12:16:48,142 INFO L241 Difference]: Finished difference. Result has 123 places, 94 transitions, 335 flow [2021-06-10 12:16:48,142 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=100, PETRI_DIFFERENCE_MINUEND_FLOW=254, PETRI_DIFFERENCE_MINUEND_PLACES=104, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=89, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=81, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=335, PETRI_PLACES=123, PETRI_TRANSITIONS=94} [2021-06-10 12:16:48,143 INFO L343 CegarLoopForPetriNet]: 105 programPoint places, 18 predicate places. [2021-06-10 12:16:48,143 INFO L480 AbstractCegarLoop]: Abstraction has has 123 places, 94 transitions, 335 flow [2021-06-10 12:16:48,143 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 81.44444444444444) internal successors, (733), 9 states have internal predecessors, (733), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-10 12:16:48,143 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-10 12:16:48,143 INFO L263 CegarLoopForPetriNet]: 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-10 12:16:48,143 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-06-10 12:16:48,143 INFO L428 AbstractCegarLoop]: === Iteration 6 === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-10 12:16:48,144 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-10 12:16:48,144 INFO L82 PathProgramCache]: Analyzing trace with hash 747758684, now seen corresponding path program 2 times [2021-06-10 12:16:48,144 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-10 12:16:48,144 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [399825594] [2021-06-10 12:16:48,144 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-10 12:16:48,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-10 12:16:48,206 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:16:48,206 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 12:16:48,207 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:16:48,207 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-10 12:16:48,210 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:16:48,210 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-10 12:16:48,216 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:16:48,216 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-10 12:16:48,223 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:16:48,224 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-10 12:16:48,236 INFO L142 QuantifierPusher]: treesize reduction 10, result has 82.8 percent of original size [2021-06-10 12:16:48,237 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 48 [2021-06-10 12:16:48,259 INFO L142 QuantifierPusher]: treesize reduction 10, result has 82.8 percent of original size [2021-06-10 12:16:48,260 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 48 [2021-06-10 12:16:48,280 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-06-10 12:16:48,282 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-06-10 12:16:48,297 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:16:48,297 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-10 12:16:48,306 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:16:48,307 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-10 12:16:48,316 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:16:48,316 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 12:16:48,316 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-10 12:16:48,317 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [399825594] [2021-06-10 12:16:48,317 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-10 12:16:48,317 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-06-10 12:16:48,317 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [695218193] [2021-06-10 12:16:48,317 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-06-10 12:16:48,317 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-10 12:16:48,318 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-06-10 12:16:48,318 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2021-06-10 12:16:48,319 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 80 out of 100 [2021-06-10 12:16:48,320 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 123 places, 94 transitions, 335 flow. Second operand has 11 states, 11 states have (on average 81.18181818181819) internal successors, (893), 11 states have internal predecessors, (893), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-10 12:16:48,320 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-10 12:16:48,320 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 80 of 100 [2021-06-10 12:16:48,320 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-10 12:16:48,668 INFO L129 PetriNetUnfolder]: 163/473 cut-off events. [2021-06-10 12:16:48,668 INFO L130 PetriNetUnfolder]: For 2891/2983 co-relation queries the response was YES. [2021-06-10 12:16:48,671 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2042 conditions, 473 events. 163/473 cut-off events. For 2891/2983 co-relation queries the response was YES. Maximal size of possible extension queue 40. Compared 2409 event pairs, 7 based on Foata normal form. 25/484 useless extension candidates. Maximal degree in co-relation 1970. Up to 160 conditions per place. [2021-06-10 12:16:48,674 INFO L132 encePairwiseOnDemand]: 88/100 looper letters, 17 selfloop transitions, 13 changer transitions 19/119 dead transitions. [2021-06-10 12:16:48,674 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 130 places, 119 transitions, 721 flow [2021-06-10 12:16:48,675 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-06-10 12:16:48,675 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2021-06-10 12:16:48,677 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 1167 transitions. [2021-06-10 12:16:48,677 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8335714285714285 [2021-06-10 12:16:48,677 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 1167 transitions. [2021-06-10 12:16:48,677 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 1167 transitions. [2021-06-10 12:16:48,678 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-10 12:16:48,678 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 1167 transitions. [2021-06-10 12:16:48,680 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 83.35714285714286) internal successors, (1167), 14 states have internal predecessors, (1167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-10 12:16:48,682 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 100.0) internal successors, (1500), 15 states have internal predecessors, (1500), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-10 12:16:48,683 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 100.0) internal successors, (1500), 15 states have internal predecessors, (1500), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-10 12:16:48,683 INFO L185 Difference]: Start difference. First operand has 123 places, 94 transitions, 335 flow. Second operand 14 states and 1167 transitions. [2021-06-10 12:16:48,683 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 130 places, 119 transitions, 721 flow [2021-06-10 12:16:48,688 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 125 places, 119 transitions, 690 flow, removed 12 selfloop flow, removed 5 redundant places. [2021-06-10 12:16:48,690 INFO L241 Difference]: Finished difference. Result has 132 places, 96 transitions, 404 flow [2021-06-10 12:16:48,690 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=100, PETRI_DIFFERENCE_MINUEND_FLOW=312, PETRI_DIFFERENCE_MINUEND_PLACES=112, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=94, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=81, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=404, PETRI_PLACES=132, PETRI_TRANSITIONS=96} [2021-06-10 12:16:48,690 INFO L343 CegarLoopForPetriNet]: 105 programPoint places, 27 predicate places. [2021-06-10 12:16:48,690 INFO L480 AbstractCegarLoop]: Abstraction has has 132 places, 96 transitions, 404 flow [2021-06-10 12:16:48,691 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 81.18181818181819) internal successors, (893), 11 states have internal predecessors, (893), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-10 12:16:48,691 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-10 12:16:48,691 INFO L263 CegarLoopForPetriNet]: 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-10 12:16:48,691 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-06-10 12:16:48,691 INFO L428 AbstractCegarLoop]: === Iteration 7 === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-10 12:16:48,692 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-10 12:16:48,692 INFO L82 PathProgramCache]: Analyzing trace with hash -672925038, now seen corresponding path program 3 times [2021-06-10 12:16:48,692 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-10 12:16:48,692 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1988522217] [2021-06-10 12:16:48,692 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-10 12:16:48,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-10 12:16:48,765 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:16:48,766 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 12:16:48,766 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:16:48,767 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-10 12:16:48,769 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:16:48,770 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-10 12:16:48,776 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:16:48,776 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-10 12:16:48,784 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:16:48,785 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-10 12:16:48,796 INFO L142 QuantifierPusher]: treesize reduction 10, result has 83.6 percent of original size [2021-06-10 12:16:48,798 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-06-10 12:16:48,821 INFO L142 QuantifierPusher]: treesize reduction 10, result has 80.8 percent of original size [2021-06-10 12:16:48,822 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 42 [2021-06-10 12:16:48,838 INFO L142 QuantifierPusher]: treesize reduction 10, result has 81.8 percent of original size [2021-06-10 12:16:48,840 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-06-10 12:16:48,857 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-06-10 12:16:48,859 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-06-10 12:16:48,877 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:16:48,878 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-10 12:16:48,888 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:16:48,889 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-10 12:16:48,900 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:16:48,900 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 12:16:48,901 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-10 12:16:48,901 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1988522217] [2021-06-10 12:16:48,901 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-10 12:16:48,901 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-06-10 12:16:48,901 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [861378306] [2021-06-10 12:16:48,902 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-06-10 12:16:48,902 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-10 12:16:48,902 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-06-10 12:16:48,902 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2021-06-10 12:16:48,903 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 78 out of 100 [2021-06-10 12:16:48,904 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 132 places, 96 transitions, 404 flow. Second operand has 12 states, 12 states have (on average 79.25) internal successors, (951), 12 states have internal predecessors, (951), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-10 12:16:48,904 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-10 12:16:48,904 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 78 of 100 [2021-06-10 12:16:48,904 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-10 12:16:49,272 INFO L129 PetriNetUnfolder]: 247/677 cut-off events. [2021-06-10 12:16:49,272 INFO L130 PetriNetUnfolder]: For 8489/8586 co-relation queries the response was YES. [2021-06-10 12:16:49,277 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3829 conditions, 677 events. 247/677 cut-off events. For 8489/8586 co-relation queries the response was YES. Maximal size of possible extension queue 60. Compared 4035 event pairs, 26 based on Foata normal form. 22/681 useless extension candidates. Maximal degree in co-relation 3749. Up to 203 conditions per place. [2021-06-10 12:16:49,283 INFO L132 encePairwiseOnDemand]: 86/100 looper letters, 30 selfloop transitions, 20 changer transitions 10/128 dead transitions. [2021-06-10 12:16:49,284 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 138 places, 128 transitions, 929 flow [2021-06-10 12:16:49,284 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-06-10 12:16:49,284 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2021-06-10 12:16:49,286 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1065 transitions. [2021-06-10 12:16:49,287 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8192307692307692 [2021-06-10 12:16:49,287 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 1065 transitions. [2021-06-10 12:16:49,287 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 1065 transitions. [2021-06-10 12:16:49,287 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-10 12:16:49,287 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 1065 transitions. [2021-06-10 12:16:49,289 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 81.92307692307692) internal successors, (1065), 13 states have internal predecessors, (1065), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-10 12:16:49,291 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 100.0) internal successors, (1400), 14 states have internal predecessors, (1400), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-10 12:16:49,292 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 100.0) internal successors, (1400), 14 states have internal predecessors, (1400), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-10 12:16:49,292 INFO L185 Difference]: Start difference. First operand has 132 places, 96 transitions, 404 flow. Second operand 13 states and 1065 transitions. [2021-06-10 12:16:49,292 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 138 places, 128 transitions, 929 flow [2021-06-10 12:16:49,300 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 122 places, 128 transitions, 669 flow, removed 113 selfloop flow, removed 16 redundant places. [2021-06-10 12:16:49,302 INFO L241 Difference]: Finished difference. Result has 129 places, 105 transitions, 461 flow [2021-06-10 12:16:49,302 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=100, PETRI_DIFFERENCE_MINUEND_FLOW=314, PETRI_DIFFERENCE_MINUEND_PLACES=110, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=96, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=79, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=461, PETRI_PLACES=129, PETRI_TRANSITIONS=105} [2021-06-10 12:16:49,302 INFO L343 CegarLoopForPetriNet]: 105 programPoint places, 24 predicate places. [2021-06-10 12:16:49,303 INFO L480 AbstractCegarLoop]: Abstraction has has 129 places, 105 transitions, 461 flow [2021-06-10 12:16:49,303 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 12 states have (on average 79.25) internal successors, (951), 12 states have internal predecessors, (951), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-10 12:16:49,303 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-10 12:16:49,303 INFO L263 CegarLoopForPetriNet]: 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-10 12:16:49,303 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-06-10 12:16:49,303 INFO L428 AbstractCegarLoop]: === Iteration 8 === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-10 12:16:49,304 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-10 12:16:49,304 INFO L82 PathProgramCache]: Analyzing trace with hash 126914072, now seen corresponding path program 4 times [2021-06-10 12:16:49,304 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-10 12:16:49,304 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1701448004] [2021-06-10 12:16:49,304 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-10 12:16:49,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-10 12:16:49,361 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:16:49,361 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 12:16:49,362 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:16:49,362 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-10 12:16:49,365 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:16:49,365 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-10 12:16:49,374 INFO L142 QuantifierPusher]: treesize reduction 10, result has 80.4 percent of original size [2021-06-10 12:16:49,374 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-06-10 12:16:49,387 INFO L142 QuantifierPusher]: treesize reduction 10, result has 81.5 percent of original size [2021-06-10 12:16:49,388 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-06-10 12:16:49,404 INFO L142 QuantifierPusher]: treesize reduction 20, result has 79.6 percent of original size [2021-06-10 12:16:49,405 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 78 [2021-06-10 12:16:49,413 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-06-10 12:16:49,414 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-06-10 12:16:49,429 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:16:49,430 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-10 12:16:49,438 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:16:49,439 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-10 12:16:49,448 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:16:49,449 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 12:16:49,449 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-10 12:16:49,449 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1701448004] [2021-06-10 12:16:49,449 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-10 12:16:49,449 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-10 12:16:49,450 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2017151855] [2021-06-10 12:16:49,450 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-10 12:16:49,450 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-10 12:16:49,450 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-10 12:16:49,450 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-06-10 12:16:49,451 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 80 out of 100 [2021-06-10 12:16:49,452 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 129 places, 105 transitions, 461 flow. Second operand has 9 states, 9 states have (on average 81.44444444444444) internal successors, (733), 9 states have internal predecessors, (733), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-10 12:16:49,452 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-10 12:16:49,452 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 80 of 100 [2021-06-10 12:16:49,452 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-10 12:16:49,808 INFO L129 PetriNetUnfolder]: 262/730 cut-off events. [2021-06-10 12:16:49,808 INFO L130 PetriNetUnfolder]: For 3886/4120 co-relation queries the response was YES. [2021-06-10 12:16:49,813 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3353 conditions, 730 events. 262/730 cut-off events. For 3886/4120 co-relation queries the response was YES. Maximal size of possible extension queue 72. Compared 4592 event pairs, 25 based on Foata normal form. 51/763 useless extension candidates. Maximal degree in co-relation 3277. Up to 243 conditions per place. [2021-06-10 12:16:49,818 INFO L132 encePairwiseOnDemand]: 89/100 looper letters, 23 selfloop transitions, 21 changer transitions 19/133 dead transitions. [2021-06-10 12:16:49,818 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 139 places, 133 transitions, 887 flow [2021-06-10 12:16:49,819 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-06-10 12:16:49,819 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2021-06-10 12:16:49,821 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 1168 transitions. [2021-06-10 12:16:49,821 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8342857142857143 [2021-06-10 12:16:49,821 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 1168 transitions. [2021-06-10 12:16:49,821 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 1168 transitions. [2021-06-10 12:16:49,822 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-10 12:16:49,822 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 1168 transitions. [2021-06-10 12:16:49,824 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 83.42857142857143) internal successors, (1168), 14 states have internal predecessors, (1168), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-10 12:16:49,826 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 100.0) internal successors, (1500), 15 states have internal predecessors, (1500), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-10 12:16:49,827 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 100.0) internal successors, (1500), 15 states have internal predecessors, (1500), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-10 12:16:49,827 INFO L185 Difference]: Start difference. First operand has 129 places, 105 transitions, 461 flow. Second operand 14 states and 1168 transitions. [2021-06-10 12:16:49,827 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 139 places, 133 transitions, 887 flow [2021-06-10 12:16:49,833 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 131 places, 133 transitions, 847 flow, removed 14 selfloop flow, removed 8 redundant places. [2021-06-10 12:16:49,835 INFO L241 Difference]: Finished difference. Result has 138 places, 107 transitions, 549 flow [2021-06-10 12:16:49,835 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=100, PETRI_DIFFERENCE_MINUEND_FLOW=435, PETRI_DIFFERENCE_MINUEND_PLACES=118, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=105, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=19, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=84, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=549, PETRI_PLACES=138, PETRI_TRANSITIONS=107} [2021-06-10 12:16:49,835 INFO L343 CegarLoopForPetriNet]: 105 programPoint places, 33 predicate places. [2021-06-10 12:16:49,835 INFO L480 AbstractCegarLoop]: Abstraction has has 138 places, 107 transitions, 549 flow [2021-06-10 12:16:49,836 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 81.44444444444444) internal successors, (733), 9 states have internal predecessors, (733), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-10 12:16:49,836 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-10 12:16:49,836 INFO L263 CegarLoopForPetriNet]: 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-10 12:16:49,836 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-06-10 12:16:49,836 INFO L428 AbstractCegarLoop]: === Iteration 9 === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-10 12:16:49,837 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-10 12:16:49,837 INFO L82 PathProgramCache]: Analyzing trace with hash 74715129, now seen corresponding path program 1 times [2021-06-10 12:16:49,837 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-10 12:16:49,837 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [583969131] [2021-06-10 12:16:49,837 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-10 12:16:49,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-10 12:16:49,903 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:16:49,903 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 12:16:49,903 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:16:49,904 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-10 12:16:49,906 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:16:49,907 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-10 12:16:49,912 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:16:49,913 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-10 12:16:49,920 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:16:49,921 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-10 12:16:49,931 INFO L142 QuantifierPusher]: treesize reduction 10, result has 83.3 percent of original size [2021-06-10 12:16:49,932 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-06-10 12:16:49,953 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:16:49,954 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-10 12:16:49,964 INFO L142 QuantifierPusher]: treesize reduction 6, result has 91.0 percent of original size [2021-06-10 12:16:49,965 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-06-10 12:16:49,989 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-06-10 12:16:49,989 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-06-10 12:16:50,012 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:16:50,013 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-10 12:16:50,021 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:16:50,021 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-10 12:16:50,030 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:16:50,030 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 12:16:50,032 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-10 12:16:50,032 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [583969131] [2021-06-10 12:16:50,032 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-10 12:16:50,033 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-06-10 12:16:50,033 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [39144368] [2021-06-10 12:16:50,033 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-06-10 12:16:50,033 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-10 12:16:50,033 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-06-10 12:16:50,034 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=99, Unknown=0, NotChecked=0, Total=132 [2021-06-10 12:16:50,034 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 78 out of 100 [2021-06-10 12:16:50,035 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 138 places, 107 transitions, 549 flow. Second operand has 12 states, 12 states have (on average 79.33333333333333) internal successors, (952), 12 states have internal predecessors, (952), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-10 12:16:50,035 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-10 12:16:50,035 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 78 of 100 [2021-06-10 12:16:50,036 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-10 12:16:50,386 INFO L129 PetriNetUnfolder]: 187/585 cut-off events. [2021-06-10 12:16:50,386 INFO L130 PetriNetUnfolder]: For 5136/5386 co-relation queries the response was YES. [2021-06-10 12:16:50,391 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2987 conditions, 585 events. 187/585 cut-off events. For 5136/5386 co-relation queries the response was YES. Maximal size of possible extension queue 49. Compared 3466 event pairs, 45 based on Foata normal form. 29/596 useless extension candidates. Maximal degree in co-relation 2906. Up to 283 conditions per place. [2021-06-10 12:16:50,396 INFO L132 encePairwiseOnDemand]: 88/100 looper letters, 30 selfloop transitions, 13 changer transitions 10/121 dead transitions. [2021-06-10 12:16:50,396 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 144 places, 121 transitions, 839 flow [2021-06-10 12:16:50,396 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-06-10 12:16:50,396 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2021-06-10 12:16:50,398 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1052 transitions. [2021-06-10 12:16:50,398 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8092307692307692 [2021-06-10 12:16:50,398 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 1052 transitions. [2021-06-10 12:16:50,399 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 1052 transitions. [2021-06-10 12:16:50,399 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-10 12:16:50,399 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 1052 transitions. [2021-06-10 12:16:50,401 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 80.92307692307692) internal successors, (1052), 13 states have internal predecessors, (1052), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-10 12:16:50,404 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 100.0) internal successors, (1400), 14 states have internal predecessors, (1400), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-10 12:16:50,404 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 100.0) internal successors, (1400), 14 states have internal predecessors, (1400), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-10 12:16:50,404 INFO L185 Difference]: Start difference. First operand has 138 places, 107 transitions, 549 flow. Second operand 13 states and 1052 transitions. [2021-06-10 12:16:50,404 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 144 places, 121 transitions, 839 flow [2021-06-10 12:16:50,411 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 133 places, 121 transitions, 735 flow, removed 45 selfloop flow, removed 11 redundant places. [2021-06-10 12:16:50,413 INFO L241 Difference]: Finished difference. Result has 140 places, 108 transitions, 568 flow [2021-06-10 12:16:50,413 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=100, PETRI_DIFFERENCE_MINUEND_FLOW=503, PETRI_DIFFERENCE_MINUEND_PLACES=121, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=107, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=94, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=568, PETRI_PLACES=140, PETRI_TRANSITIONS=108} [2021-06-10 12:16:50,413 INFO L343 CegarLoopForPetriNet]: 105 programPoint places, 35 predicate places. [2021-06-10 12:16:50,413 INFO L480 AbstractCegarLoop]: Abstraction has has 140 places, 108 transitions, 568 flow [2021-06-10 12:16:50,414 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 12 states have (on average 79.33333333333333) internal successors, (952), 12 states have internal predecessors, (952), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-10 12:16:50,414 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-10 12:16:50,414 INFO L263 CegarLoopForPetriNet]: 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-10 12:16:50,414 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-06-10 12:16:50,414 INFO L428 AbstractCegarLoop]: === Iteration 10 === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-10 12:16:50,415 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-10 12:16:50,415 INFO L82 PathProgramCache]: Analyzing trace with hash 245537055, now seen corresponding path program 2 times [2021-06-10 12:16:50,415 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-10 12:16:50,415 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [142416478] [2021-06-10 12:16:50,415 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-10 12:16:50,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-10 12:16:50,511 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:16:50,511 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 12:16:50,512 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:16:50,512 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-10 12:16:50,515 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:16:50,515 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-10 12:16:50,520 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:16:50,521 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-10 12:16:50,530 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:16:50,530 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-10 12:16:50,540 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:16:50,541 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-06-10 12:16:50,554 INFO L142 QuantifierPusher]: treesize reduction 10, result has 83.3 percent of original size [2021-06-10 12:16:50,556 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-06-10 12:16:50,577 INFO L142 QuantifierPusher]: treesize reduction 10, result has 84.1 percent of original size [2021-06-10 12:16:50,578 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-06-10 12:16:50,613 INFO L142 QuantifierPusher]: treesize reduction 36, result has 65.4 percent of original size [2021-06-10 12:16:50,615 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 68 [2021-06-10 12:16:50,640 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-06-10 12:16:50,640 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-06-10 12:16:50,661 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:16:50,661 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-10 12:16:50,670 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:16:50,671 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-10 12:16:50,680 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:16:50,680 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 12:16:50,681 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-10 12:16:50,681 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [142416478] [2021-06-10 12:16:50,681 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-10 12:16:50,681 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2021-06-10 12:16:50,681 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [75521340] [2021-06-10 12:16:50,682 INFO L460 AbstractCegarLoop]: Interpolant automaton has 13 states [2021-06-10 12:16:50,682 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-10 12:16:50,682 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-06-10 12:16:50,684 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=116, Unknown=0, NotChecked=0, Total=156 [2021-06-10 12:16:50,685 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 77 out of 100 [2021-06-10 12:16:50,686 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 140 places, 108 transitions, 568 flow. Second operand has 13 states, 13 states have (on average 78.3076923076923) internal successors, (1018), 13 states have internal predecessors, (1018), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-10 12:16:50,686 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-10 12:16:50,686 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 77 of 100 [2021-06-10 12:16:50,687 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-10 12:16:51,080 INFO L129 PetriNetUnfolder]: 187/599 cut-off events. [2021-06-10 12:16:51,081 INFO L130 PetriNetUnfolder]: For 4478/4732 co-relation queries the response was YES. [2021-06-10 12:16:51,086 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2919 conditions, 599 events. 187/599 cut-off events. For 4478/4732 co-relation queries the response was YES. Maximal size of possible extension queue 51. Compared 3654 event pairs, 45 based on Foata normal form. 29/610 useless extension candidates. Maximal degree in co-relation 2836. Up to 281 conditions per place. [2021-06-10 12:16:51,091 INFO L132 encePairwiseOnDemand]: 88/100 looper letters, 30 selfloop transitions, 17 changer transitions 10/124 dead transitions. [2021-06-10 12:16:51,091 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 147 places, 124 transitions, 878 flow [2021-06-10 12:16:51,091 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-06-10 12:16:51,091 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2021-06-10 12:16:51,093 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 1116 transitions. [2021-06-10 12:16:51,094 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7971428571428572 [2021-06-10 12:16:51,094 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 1116 transitions. [2021-06-10 12:16:51,094 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 1116 transitions. [2021-06-10 12:16:51,094 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-10 12:16:51,095 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 1116 transitions. [2021-06-10 12:16:51,097 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 79.71428571428571) internal successors, (1116), 14 states have internal predecessors, (1116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-10 12:16:51,099 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 100.0) internal successors, (1500), 15 states have internal predecessors, (1500), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-10 12:16:51,099 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 100.0) internal successors, (1500), 15 states have internal predecessors, (1500), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-10 12:16:51,099 INFO L185 Difference]: Start difference. First operand has 140 places, 108 transitions, 568 flow. Second operand 14 states and 1116 transitions. [2021-06-10 12:16:51,100 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 147 places, 124 transitions, 878 flow [2021-06-10 12:16:51,107 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 136 places, 124 transitions, 787 flow, removed 33 selfloop flow, removed 11 redundant places. [2021-06-10 12:16:51,109 INFO L241 Difference]: Finished difference. Result has 144 places, 112 transitions, 639 flow [2021-06-10 12:16:51,110 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=100, PETRI_DIFFERENCE_MINUEND_FLOW=519, PETRI_DIFFERENCE_MINUEND_PLACES=123, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=108, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=92, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=639, PETRI_PLACES=144, PETRI_TRANSITIONS=112} [2021-06-10 12:16:51,110 INFO L343 CegarLoopForPetriNet]: 105 programPoint places, 39 predicate places. [2021-06-10 12:16:51,110 INFO L480 AbstractCegarLoop]: Abstraction has has 144 places, 112 transitions, 639 flow [2021-06-10 12:16:51,110 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 13 states, 13 states have (on average 78.3076923076923) internal successors, (1018), 13 states have internal predecessors, (1018), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-10 12:16:51,111 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-10 12:16:51,111 INFO L263 CegarLoopForPetriNet]: 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-10 12:16:51,111 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-06-10 12:16:51,111 INFO L428 AbstractCegarLoop]: === Iteration 11 === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-10 12:16:51,111 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-10 12:16:51,111 INFO L82 PathProgramCache]: Analyzing trace with hash -1634100691, now seen corresponding path program 3 times [2021-06-10 12:16:51,112 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-10 12:16:51,112 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2013931964] [2021-06-10 12:16:51,112 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-10 12:16:51,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-10 12:16:51,207 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:16:51,208 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 12:16:51,208 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:16:51,210 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-10 12:16:51,213 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:16:51,215 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-10 12:16:51,220 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:16:51,221 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-10 12:16:51,229 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:16:51,230 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-10 12:16:51,239 INFO L142 QuantifierPusher]: treesize reduction 10, result has 81.5 percent of original size [2021-06-10 12:16:51,240 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-06-10 12:16:51,248 INFO L142 QuantifierPusher]: treesize reduction 10, result has 82.5 percent of original size [2021-06-10 12:16:51,249 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-06-10 12:16:51,270 INFO L142 QuantifierPusher]: treesize reduction 10, result has 82.8 percent of original size [2021-06-10 12:16:51,271 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 48 [2021-06-10 12:16:51,292 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-06-10 12:16:51,293 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-06-10 12:16:51,310 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:16:51,310 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-10 12:16:51,320 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:16:51,320 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-10 12:16:51,330 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:16:51,331 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 12:16:51,331 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-10 12:16:51,331 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2013931964] [2021-06-10 12:16:51,332 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-10 12:16:51,332 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-06-10 12:16:51,332 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1163245765] [2021-06-10 12:16:51,332 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-06-10 12:16:51,332 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-10 12:16:51,333 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-06-10 12:16:51,333 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2021-06-10 12:16:51,334 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 79 out of 100 [2021-06-10 12:16:51,335 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 144 places, 112 transitions, 639 flow. Second operand has 11 states, 11 states have (on average 80.36363636363636) internal successors, (884), 11 states have internal predecessors, (884), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-10 12:16:51,335 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-10 12:16:51,335 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 79 of 100 [2021-06-10 12:16:51,335 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-10 12:16:51,768 INFO L129 PetriNetUnfolder]: 162/702 cut-off events. [2021-06-10 12:16:51,768 INFO L130 PetriNetUnfolder]: For 4378/4631 co-relation queries the response was YES. [2021-06-10 12:16:51,773 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3097 conditions, 702 events. 162/702 cut-off events. For 4378/4631 co-relation queries the response was YES. Maximal size of possible extension queue 62. Compared 4950 event pairs, 11 based on Foata normal form. 67/752 useless extension candidates. Maximal degree in co-relation 3013. Up to 161 conditions per place. [2021-06-10 12:16:51,778 INFO L132 encePairwiseOnDemand]: 87/100 looper letters, 26 selfloop transitions, 32 changer transitions 10/137 dead transitions. [2021-06-10 12:16:51,778 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 154 places, 137 transitions, 1050 flow [2021-06-10 12:16:51,778 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-10 12:16:51,778 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2021-06-10 12:16:51,779 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 1393 transitions. [2021-06-10 12:16:51,780 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8194117647058824 [2021-06-10 12:16:51,780 INFO L72 ComplementDD]: Start complementDD. Operand 17 states and 1393 transitions. [2021-06-10 12:16:51,780 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 1393 transitions. [2021-06-10 12:16:51,781 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-10 12:16:51,781 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 17 states and 1393 transitions. [2021-06-10 12:16:51,783 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 18 states, 17 states have (on average 81.94117647058823) internal successors, (1393), 17 states have internal predecessors, (1393), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-10 12:16:51,785 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 18 states, 18 states have (on average 100.0) internal successors, (1800), 18 states have internal predecessors, (1800), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-10 12:16:51,786 INFO L81 ComplementDD]: Finished complementDD. Result has 18 states, 18 states have (on average 100.0) internal successors, (1800), 18 states have internal predecessors, (1800), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-10 12:16:51,786 INFO L185 Difference]: Start difference. First operand has 144 places, 112 transitions, 639 flow. Second operand 17 states and 1393 transitions. [2021-06-10 12:16:51,786 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 154 places, 137 transitions, 1050 flow [2021-06-10 12:16:51,797 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 144 places, 137 transitions, 929 flow, removed 53 selfloop flow, removed 10 redundant places. [2021-06-10 12:16:51,799 INFO L241 Difference]: Finished difference. Result has 152 places, 117 transitions, 758 flow [2021-06-10 12:16:51,799 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=100, PETRI_DIFFERENCE_MINUEND_FLOW=585, PETRI_DIFFERENCE_MINUEND_PLACES=128, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=112, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=27, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=82, PETRI_DIFFERENCE_SUBTRAHEND_STATES=17, PETRI_FLOW=758, PETRI_PLACES=152, PETRI_TRANSITIONS=117} [2021-06-10 12:16:51,799 INFO L343 CegarLoopForPetriNet]: 105 programPoint places, 47 predicate places. [2021-06-10 12:16:51,799 INFO L480 AbstractCegarLoop]: Abstraction has has 152 places, 117 transitions, 758 flow [2021-06-10 12:16:51,800 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 80.36363636363636) internal successors, (884), 11 states have internal predecessors, (884), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-10 12:16:51,800 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-10 12:16:51,800 INFO L263 CegarLoopForPetriNet]: 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-10 12:16:51,800 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-06-10 12:16:51,800 INFO L428 AbstractCegarLoop]: === Iteration 12 === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-10 12:16:51,801 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-10 12:16:51,801 INFO L82 PathProgramCache]: Analyzing trace with hash 1777667181, now seen corresponding path program 1 times [2021-06-10 12:16:51,801 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-10 12:16:51,801 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1948363753] [2021-06-10 12:16:51,801 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-10 12:16:51,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-10 12:16:51,848 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:16:51,848 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 12:16:51,849 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:16:51,849 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-10 12:16:51,852 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.8 percent of original size [2021-06-10 12:16:51,853 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-06-10 12:16:51,868 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:16:51,868 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-10 12:16:51,876 INFO L142 QuantifierPusher]: treesize reduction 11, result has 45.0 percent of original size [2021-06-10 12:16:51,877 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-10 12:16:51,885 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:16:51,887 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 12:16:51,887 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-10 12:16:51,887 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1948363753] [2021-06-10 12:16:51,887 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-10 12:16:51,888 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-06-10 12:16:51,888 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [839810936] [2021-06-10 12:16:51,888 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-06-10 12:16:51,888 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-10 12:16:51,888 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-06-10 12:16:51,889 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-06-10 12:16:51,889 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 86 out of 100 [2021-06-10 12:16:51,890 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 152 places, 117 transitions, 758 flow. Second operand has 6 states, 6 states have (on average 87.16666666666667) internal successors, (523), 6 states have internal predecessors, (523), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-10 12:16:51,890 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-10 12:16:51,890 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 86 of 100 [2021-06-10 12:16:51,890 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-10 12:16:52,223 INFO L129 PetriNetUnfolder]: 665/1819 cut-off events. [2021-06-10 12:16:52,223 INFO L130 PetriNetUnfolder]: For 4791/4961 co-relation queries the response was YES. [2021-06-10 12:16:52,237 INFO L84 FinitePrefix]: Finished finitePrefix Result has 5099 conditions, 1819 events. 665/1819 cut-off events. For 4791/4961 co-relation queries the response was YES. Maximal size of possible extension queue 276. Compared 15689 event pairs, 111 based on Foata normal form. 67/1681 useless extension candidates. Maximal degree in co-relation 5016. Up to 405 conditions per place. [2021-06-10 12:16:52,247 INFO L132 encePairwiseOnDemand]: 90/100 looper letters, 24 selfloop transitions, 17 changer transitions 0/147 dead transitions. [2021-06-10 12:16:52,247 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 155 places, 147 transitions, 900 flow [2021-06-10 12:16:52,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-10 12:16:52,248 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-06-10 12:16:52,248 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 903 transitions. [2021-06-10 12:16:52,249 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.903 [2021-06-10 12:16:52,249 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 903 transitions. [2021-06-10 12:16:52,249 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 903 transitions. [2021-06-10 12:16:52,249 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-10 12:16:52,250 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 903 transitions. [2021-06-10 12:16:52,251 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 90.3) internal successors, (903), 10 states have internal predecessors, (903), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-10 12:16:52,253 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 100.0) internal successors, (1100), 11 states have internal predecessors, (1100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-10 12:16:52,253 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 100.0) internal successors, (1100), 11 states have internal predecessors, (1100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-10 12:16:52,253 INFO L185 Difference]: Start difference. First operand has 152 places, 117 transitions, 758 flow. Second operand 10 states and 903 transitions. [2021-06-10 12:16:52,253 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 155 places, 147 transitions, 900 flow [2021-06-10 12:16:52,266 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 141 places, 147 transitions, 836 flow, removed 12 selfloop flow, removed 14 redundant places. [2021-06-10 12:16:52,269 INFO L241 Difference]: Finished difference. Result has 147 places, 132 transitions, 814 flow [2021-06-10 12:16:52,269 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=100, PETRI_DIFFERENCE_MINUEND_FLOW=694, PETRI_DIFFERENCE_MINUEND_PLACES=132, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=117, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=108, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=814, PETRI_PLACES=147, PETRI_TRANSITIONS=132} [2021-06-10 12:16:52,269 INFO L343 CegarLoopForPetriNet]: 105 programPoint places, 42 predicate places. [2021-06-10 12:16:52,269 INFO L480 AbstractCegarLoop]: Abstraction has has 147 places, 132 transitions, 814 flow [2021-06-10 12:16:52,270 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 87.16666666666667) internal successors, (523), 6 states have internal predecessors, (523), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-10 12:16:52,270 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-10 12:16:52,270 INFO L263 CegarLoopForPetriNet]: 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-10 12:16:52,271 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-06-10 12:16:52,271 INFO L428 AbstractCegarLoop]: === Iteration 13 === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-10 12:16:52,271 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-10 12:16:52,271 INFO L82 PathProgramCache]: Analyzing trace with hash -1488146603, now seen corresponding path program 1 times [2021-06-10 12:16:52,271 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-10 12:16:52,271 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [371800342] [2021-06-10 12:16:52,271 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-10 12:16:52,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-10 12:16:52,378 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:16:52,378 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 12:16:52,379 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:16:52,379 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-10 12:16:52,383 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:16:52,383 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-10 12:16:52,387 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.8 percent of original size [2021-06-10 12:16:52,388 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-06-10 12:16:52,402 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:16:52,402 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-10 12:16:52,410 INFO L142 QuantifierPusher]: treesize reduction 11, result has 45.0 percent of original size [2021-06-10 12:16:52,411 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-10 12:16:52,419 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:16:52,419 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 12:16:52,420 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-10 12:16:52,420 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [371800342] [2021-06-10 12:16:52,420 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-10 12:16:52,420 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-06-10 12:16:52,420 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1626269152] [2021-06-10 12:16:52,421 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-06-10 12:16:52,421 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-10 12:16:52,421 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-06-10 12:16:52,421 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-06-10 12:16:52,422 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 86 out of 100 [2021-06-10 12:16:52,422 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 147 places, 132 transitions, 814 flow. Second operand has 7 states, 7 states have (on average 87.14285714285714) internal successors, (610), 7 states have internal predecessors, (610), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-10 12:16:52,422 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-10 12:16:52,423 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 86 of 100 [2021-06-10 12:16:52,423 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-10 12:16:52,761 INFO L129 PetriNetUnfolder]: 540/1618 cut-off events. [2021-06-10 12:16:52,762 INFO L130 PetriNetUnfolder]: For 4326/6648 co-relation queries the response was YES. [2021-06-10 12:16:52,771 INFO L84 FinitePrefix]: Finished finitePrefix Result has 5516 conditions, 1618 events. 540/1618 cut-off events. For 4326/6648 co-relation queries the response was YES. Maximal size of possible extension queue 255. Compared 14156 event pairs, 22 based on Foata normal form. 304/1762 useless extension candidates. Maximal degree in co-relation 5435. Up to 542 conditions per place. [2021-06-10 12:16:52,778 INFO L132 encePairwiseOnDemand]: 90/100 looper letters, 20 selfloop transitions, 32 changer transitions 11/149 dead transitions. [2021-06-10 12:16:52,779 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 159 places, 149 transitions, 948 flow [2021-06-10 12:16:52,779 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-06-10 12:16:52,779 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2021-06-10 12:16:52,780 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1175 transitions. [2021-06-10 12:16:52,781 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.9038461538461539 [2021-06-10 12:16:52,781 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 1175 transitions. [2021-06-10 12:16:52,781 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 1175 transitions. [2021-06-10 12:16:52,781 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-10 12:16:52,781 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 1175 transitions. [2021-06-10 12:16:52,783 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 90.38461538461539) internal successors, (1175), 13 states have internal predecessors, (1175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-10 12:16:52,784 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 100.0) internal successors, (1400), 14 states have internal predecessors, (1400), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-10 12:16:52,785 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 100.0) internal successors, (1400), 14 states have internal predecessors, (1400), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-10 12:16:52,785 INFO L185 Difference]: Start difference. First operand has 147 places, 132 transitions, 814 flow. Second operand 13 states and 1175 transitions. [2021-06-10 12:16:52,785 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 159 places, 149 transitions, 948 flow [2021-06-10 12:16:52,794 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 144 places, 149 transitions, 883 flow, removed 7 selfloop flow, removed 15 redundant places. [2021-06-10 12:16:52,796 INFO L241 Difference]: Finished difference. Result has 148 places, 132 transitions, 755 flow [2021-06-10 12:16:52,796 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=100, PETRI_DIFFERENCE_MINUEND_FLOW=537, PETRI_DIFFERENCE_MINUEND_PLACES=132, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=114, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=20, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=92, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=755, PETRI_PLACES=148, PETRI_TRANSITIONS=132} [2021-06-10 12:16:52,796 INFO L343 CegarLoopForPetriNet]: 105 programPoint places, 43 predicate places. [2021-06-10 12:16:52,796 INFO L480 AbstractCegarLoop]: Abstraction has has 148 places, 132 transitions, 755 flow [2021-06-10 12:16:52,797 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 87.14285714285714) internal successors, (610), 7 states have internal predecessors, (610), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-10 12:16:52,797 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-10 12:16:52,797 INFO L263 CegarLoopForPetriNet]: 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-10 12:16:52,797 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-06-10 12:16:52,797 INFO L428 AbstractCegarLoop]: === Iteration 14 === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-10 12:16:52,797 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-10 12:16:52,797 INFO L82 PathProgramCache]: Analyzing trace with hash -431283824, now seen corresponding path program 1 times [2021-06-10 12:16:52,798 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-10 12:16:52,798 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [572564298] [2021-06-10 12:16:52,798 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-10 12:16:52,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-10 12:16:52,838 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:16:52,839 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 12:16:52,839 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:16:52,839 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-10 12:16:52,842 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-06-10 12:16:52,843 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-06-10 12:16:52,857 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:16:52,857 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-10 12:16:52,864 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:16:52,865 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-10 12:16:52,873 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:16:52,873 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 12:16:52,873 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-10 12:16:52,873 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [572564298] [2021-06-10 12:16:52,874 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-10 12:16:52,874 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-06-10 12:16:52,874 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [48577709] [2021-06-10 12:16:52,874 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-06-10 12:16:52,874 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-10 12:16:52,875 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-06-10 12:16:52,875 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-06-10 12:16:52,875 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 87 out of 100 [2021-06-10 12:16:52,876 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 148 places, 132 transitions, 755 flow. Second operand has 6 states, 6 states have (on average 88.33333333333333) internal successors, (530), 6 states have internal predecessors, (530), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-10 12:16:52,876 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-10 12:16:52,876 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 87 of 100 [2021-06-10 12:16:52,876 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-10 12:16:53,157 INFO L129 PetriNetUnfolder]: 464/1827 cut-off events. [2021-06-10 12:16:53,157 INFO L130 PetriNetUnfolder]: For 6138/7316 co-relation queries the response was YES. [2021-06-10 12:16:53,167 INFO L84 FinitePrefix]: Finished finitePrefix Result has 6352 conditions, 1827 events. 464/1827 cut-off events. For 6138/7316 co-relation queries the response was YES. Maximal size of possible extension queue 248. Compared 17517 event pairs, 11 based on Foata normal form. 26/1710 useless extension candidates. Maximal degree in co-relation 6276. Up to 531 conditions per place. [2021-06-10 12:16:53,172 INFO L132 encePairwiseOnDemand]: 94/100 looper letters, 12 selfloop transitions, 3 changer transitions 10/146 dead transitions. [2021-06-10 12:16:53,173 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 156 places, 146 transitions, 897 flow [2021-06-10 12:16:53,173 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-10 12:16:53,173 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-06-10 12:16:53,174 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 809 transitions. [2021-06-10 12:16:53,174 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8988888888888888 [2021-06-10 12:16:53,174 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 809 transitions. [2021-06-10 12:16:53,174 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 809 transitions. [2021-06-10 12:16:53,174 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-10 12:16:53,175 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 809 transitions. [2021-06-10 12:16:53,176 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 89.88888888888889) internal successors, (809), 9 states have internal predecessors, (809), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-10 12:16:53,177 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 100.0) internal successors, (1000), 10 states have internal predecessors, (1000), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-10 12:16:53,178 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 100.0) internal successors, (1000), 10 states have internal predecessors, (1000), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-10 12:16:53,178 INFO L185 Difference]: Start difference. First operand has 148 places, 132 transitions, 755 flow. Second operand 9 states and 809 transitions. [2021-06-10 12:16:53,178 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 156 places, 146 transitions, 897 flow [2021-06-10 12:16:53,211 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 148 places, 146 transitions, 761 flow, removed 48 selfloop flow, removed 8 redundant places. [2021-06-10 12:16:53,214 INFO L241 Difference]: Finished difference. Result has 155 places, 132 transitions, 648 flow [2021-06-10 12:16:53,214 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=100, PETRI_DIFFERENCE_MINUEND_FLOW=625, PETRI_DIFFERENCE_MINUEND_PLACES=140, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=132, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=129, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=648, PETRI_PLACES=155, PETRI_TRANSITIONS=132} [2021-06-10 12:16:53,215 INFO L343 CegarLoopForPetriNet]: 105 programPoint places, 50 predicate places. [2021-06-10 12:16:53,215 INFO L480 AbstractCegarLoop]: Abstraction has has 155 places, 132 transitions, 648 flow [2021-06-10 12:16:53,215 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 88.33333333333333) internal successors, (530), 6 states have internal predecessors, (530), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-10 12:16:53,215 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-10 12:16:53,215 INFO L263 CegarLoopForPetriNet]: 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-10 12:16:53,215 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-06-10 12:16:53,215 INFO L428 AbstractCegarLoop]: === Iteration 15 === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-10 12:16:53,216 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-10 12:16:53,216 INFO L82 PathProgramCache]: Analyzing trace with hash -553957092, now seen corresponding path program 1 times [2021-06-10 12:16:53,216 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-10 12:16:53,216 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2083917056] [2021-06-10 12:16:53,216 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-10 12:16:53,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-10 12:16:53,298 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:16:53,299 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 12:16:53,300 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:16:53,301 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-10 12:16:53,303 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:16:53,304 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-10 12:16:53,307 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:16:53,313 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-10 12:16:53,318 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.8 percent of original size [2021-06-10 12:16:53,318 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-06-10 12:16:53,337 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:16:53,337 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-10 12:16:53,345 INFO L142 QuantifierPusher]: treesize reduction 11, result has 45.0 percent of original size [2021-06-10 12:16:53,345 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-10 12:16:53,354 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:16:53,354 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 12:16:53,355 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-10 12:16:53,355 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2083917056] [2021-06-10 12:16:53,355 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-10 12:16:53,355 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-10 12:16:53,355 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [853769880] [2021-06-10 12:16:53,355 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-06-10 12:16:53,355 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-10 12:16:53,356 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-06-10 12:16:53,356 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-06-10 12:16:53,357 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 86 out of 100 [2021-06-10 12:16:53,357 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 155 places, 132 transitions, 648 flow. Second operand has 8 states, 8 states have (on average 87.125) internal successors, (697), 8 states have internal predecessors, (697), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-10 12:16:53,357 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-10 12:16:53,357 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 86 of 100 [2021-06-10 12:16:53,357 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-10 12:16:53,774 INFO L129 PetriNetUnfolder]: 640/1979 cut-off events. [2021-06-10 12:16:53,774 INFO L130 PetriNetUnfolder]: For 2639/6292 co-relation queries the response was YES. [2021-06-10 12:16:53,786 INFO L84 FinitePrefix]: Finished finitePrefix Result has 5908 conditions, 1979 events. 640/1979 cut-off events. For 2639/6292 co-relation queries the response was YES. Maximal size of possible extension queue 353. Compared 19148 event pairs, 0 based on Foata normal form. 463/2202 useless extension candidates. Maximal degree in co-relation 5865. Up to 336 conditions per place. [2021-06-10 12:16:53,790 INFO L132 encePairwiseOnDemand]: 90/100 looper letters, 16 selfloop transitions, 36 changer transitions 22/158 dead transitions. [2021-06-10 12:16:53,791 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 164 places, 158 transitions, 934 flow [2021-06-10 12:16:53,791 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-06-10 12:16:53,791 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2021-06-10 12:16:53,792 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 1432 transitions. [2021-06-10 12:16:53,793 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.895 [2021-06-10 12:16:53,793 INFO L72 ComplementDD]: Start complementDD. Operand 16 states and 1432 transitions. [2021-06-10 12:16:53,793 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 1432 transitions. [2021-06-10 12:16:53,794 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-10 12:16:53,794 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 16 states and 1432 transitions. [2021-06-10 12:16:53,795 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 17 states, 16 states have (on average 89.5) internal successors, (1432), 16 states have internal predecessors, (1432), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-10 12:16:53,797 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 17 states, 17 states have (on average 100.0) internal successors, (1700), 17 states have internal predecessors, (1700), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-10 12:16:53,798 INFO L81 ComplementDD]: Finished complementDD. Result has 17 states, 17 states have (on average 100.0) internal successors, (1700), 17 states have internal predecessors, (1700), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-10 12:16:53,798 INFO L185 Difference]: Start difference. First operand has 155 places, 132 transitions, 648 flow. Second operand 16 states and 1432 transitions. [2021-06-10 12:16:53,798 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 164 places, 158 transitions, 934 flow [2021-06-10 12:16:53,813 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 152 places, 158 transitions, 852 flow, removed 35 selfloop flow, removed 12 redundant places. [2021-06-10 12:16:53,815 INFO L241 Difference]: Finished difference. Result has 159 places, 130 transitions, 674 flow [2021-06-10 12:16:53,815 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=100, PETRI_DIFFERENCE_MINUEND_FLOW=566, PETRI_DIFFERENCE_MINUEND_PLACES=137, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=132, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=33, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=96, PETRI_DIFFERENCE_SUBTRAHEND_STATES=16, PETRI_FLOW=674, PETRI_PLACES=159, PETRI_TRANSITIONS=130} [2021-06-10 12:16:53,816 INFO L343 CegarLoopForPetriNet]: 105 programPoint places, 54 predicate places. [2021-06-10 12:16:53,816 INFO L480 AbstractCegarLoop]: Abstraction has has 159 places, 130 transitions, 674 flow [2021-06-10 12:16:53,816 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 87.125) internal successors, (697), 8 states have internal predecessors, (697), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-10 12:16:53,816 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-10 12:16:53,816 INFO L263 CegarLoopForPetriNet]: 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-10 12:16:53,816 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-06-10 12:16:53,816 INFO L428 AbstractCegarLoop]: === Iteration 16 === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-10 12:16:53,817 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-10 12:16:53,817 INFO L82 PathProgramCache]: Analyzing trace with hash -302580986, now seen corresponding path program 1 times [2021-06-10 12:16:53,817 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-10 12:16:53,817 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1308483638] [2021-06-10 12:16:53,817 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-10 12:16:53,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-10 12:16:53,889 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:16:53,892 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 12:16:53,893 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:16:53,893 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-10 12:16:53,896 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:16:53,896 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-10 12:16:53,902 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:16:53,902 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-10 12:16:53,910 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:16:53,910 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-10 12:16:53,919 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:16:53,920 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-10 12:16:53,931 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:16:53,932 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-10 12:16:53,938 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:16:53,938 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-06-10 12:16:53,943 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:16:53,943 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-06-10 12:16:53,954 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-06-10 12:16:53,955 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-06-10 12:16:53,972 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:16:53,972 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-10 12:16:53,982 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:16:53,983 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-10 12:16:53,996 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:16:53,997 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 12:16:53,997 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-10 12:16:53,997 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1308483638] [2021-06-10 12:16:53,997 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-10 12:16:53,997 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2021-06-10 12:16:53,997 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1152253919] [2021-06-10 12:16:53,998 INFO L460 AbstractCegarLoop]: Interpolant automaton has 13 states [2021-06-10 12:16:53,998 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-10 12:16:53,998 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-06-10 12:16:53,998 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=120, Unknown=0, NotChecked=0, Total=156 [2021-06-10 12:16:53,999 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 76 out of 100 [2021-06-10 12:16:53,999 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 159 places, 130 transitions, 674 flow. Second operand has 13 states, 13 states have (on average 77.46153846153847) internal successors, (1007), 13 states have internal predecessors, (1007), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-10 12:16:53,999 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-10 12:16:53,999 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 76 of 100 [2021-06-10 12:16:53,999 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-10 12:16:54,315 INFO L129 PetriNetUnfolder]: 282/1221 cut-off events. [2021-06-10 12:16:54,315 INFO L130 PetriNetUnfolder]: For 2639/2958 co-relation queries the response was YES. [2021-06-10 12:16:54,320 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3521 conditions, 1221 events. 282/1221 cut-off events. For 2639/2958 co-relation queries the response was YES. Maximal size of possible extension queue 194. Compared 11291 event pairs, 0 based on Foata normal form. 2/1131 useless extension candidates. Maximal degree in co-relation 3474. Up to 159 conditions per place. [2021-06-10 12:16:54,322 INFO L132 encePairwiseOnDemand]: 88/100 looper letters, 17 selfloop transitions, 5 changer transitions 31/148 dead transitions. [2021-06-10 12:16:54,323 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 169 places, 148 transitions, 869 flow [2021-06-10 12:16:54,323 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-06-10 12:16:54,323 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2021-06-10 12:16:54,324 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 1103 transitions. [2021-06-10 12:16:54,325 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7878571428571428 [2021-06-10 12:16:54,325 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 1103 transitions. [2021-06-10 12:16:54,325 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 1103 transitions. [2021-06-10 12:16:54,326 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-10 12:16:54,326 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 1103 transitions. [2021-06-10 12:16:54,327 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 78.78571428571429) internal successors, (1103), 14 states have internal predecessors, (1103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-10 12:16:54,329 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 100.0) internal successors, (1500), 15 states have internal predecessors, (1500), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-10 12:16:54,329 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 100.0) internal successors, (1500), 15 states have internal predecessors, (1500), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-10 12:16:54,329 INFO L185 Difference]: Start difference. First operand has 159 places, 130 transitions, 674 flow. Second operand 14 states and 1103 transitions. [2021-06-10 12:16:54,329 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 169 places, 148 transitions, 869 flow [2021-06-10 12:16:54,348 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 152 places, 148 transitions, 786 flow, removed 14 selfloop flow, removed 17 redundant places. [2021-06-10 12:16:54,350 INFO L241 Difference]: Finished difference. Result has 158 places, 117 transitions, 523 flow [2021-06-10 12:16:54,350 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=100, PETRI_DIFFERENCE_MINUEND_FLOW=601, PETRI_DIFFERENCE_MINUEND_PLACES=139, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=130, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=125, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=523, PETRI_PLACES=158, PETRI_TRANSITIONS=117} [2021-06-10 12:16:54,350 INFO L343 CegarLoopForPetriNet]: 105 programPoint places, 53 predicate places. [2021-06-10 12:16:54,350 INFO L480 AbstractCegarLoop]: Abstraction has has 158 places, 117 transitions, 523 flow [2021-06-10 12:16:54,351 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 13 states, 13 states have (on average 77.46153846153847) internal successors, (1007), 13 states have internal predecessors, (1007), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-10 12:16:54,351 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-10 12:16:54,351 INFO L263 CegarLoopForPetriNet]: 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-10 12:16:54,351 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-06-10 12:16:54,351 INFO L428 AbstractCegarLoop]: === Iteration 17 === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-10 12:16:54,351 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-10 12:16:54,351 INFO L82 PathProgramCache]: Analyzing trace with hash 1756541216, now seen corresponding path program 2 times [2021-06-10 12:16:54,351 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-10 12:16:54,352 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1432112405] [2021-06-10 12:16:54,352 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-10 12:16:54,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-06-10 12:16:54,402 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-06-10 12:16:54,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-06-10 12:16:54,447 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-06-10 12:16:54,492 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-06-10 12:16:54,492 INFO L634 BasicCegarLoop]: Counterexample might be feasible [2021-06-10 12:16:54,492 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-06-10 12:16:54,630 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.06 12:16:54 BasicIcfg [2021-06-10 12:16:54,630 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-06-10 12:16:54,632 INFO L168 Benchmark]: Toolchain (without parser) took 11544.68 ms. Allocated memory was 350.2 MB in the beginning and 562.0 MB in the end (delta: 211.8 MB). Free memory was 312.8 MB in the beginning and 488.1 MB in the end (delta: -175.3 MB). Peak memory consumption was 39.6 MB. Max. memory is 16.0 GB. [2021-06-10 12:16:54,632 INFO L168 Benchmark]: CDTParser took 0.15 ms. Allocated memory is still 350.2 MB. Free memory was 331.3 MB in the beginning and 331.2 MB in the end (delta: 76.2 kB). There was no memory consumed. Max. memory is 16.0 GB. [2021-06-10 12:16:54,632 INFO L168 Benchmark]: CACSL2BoogieTranslator took 454.55 ms. Allocated memory is still 350.2 MB. Free memory was 312.5 MB in the beginning and 310.2 MB in the end (delta: 2.3 MB). Peak memory consumption was 7.0 MB. Max. memory is 16.0 GB. [2021-06-10 12:16:54,632 INFO L168 Benchmark]: Boogie Procedure Inliner took 44.11 ms. Allocated memory is still 350.2 MB. Free memory was 310.2 MB in the beginning and 308.2 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-06-10 12:16:54,633 INFO L168 Benchmark]: Boogie Preprocessor took 27.68 ms. Allocated memory is still 350.2 MB. Free memory was 308.2 MB in the beginning and 305.1 MB in the end (delta: 3.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-06-10 12:16:54,633 INFO L168 Benchmark]: RCFGBuilder took 1757.26 ms. Allocated memory is still 350.2 MB. Free memory was 305.1 MB in the beginning and 276.4 MB in the end (delta: 28.7 MB). Peak memory consumption was 158.7 MB. Max. memory is 16.0 GB. [2021-06-10 12:16:54,633 INFO L168 Benchmark]: TraceAbstraction took 9253.73 ms. Allocated memory was 350.2 MB in the beginning and 562.0 MB in the end (delta: 211.8 MB). Free memory was 275.3 MB in the beginning and 488.1 MB in the end (delta: -212.8 MB). There was no memory consumed. Max. memory is 16.0 GB. [2021-06-10 12:16:54,641 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15 ms. Allocated memory is still 350.2 MB. Free memory was 331.3 MB in the beginning and 331.2 MB in the end (delta: 76.2 kB). There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 454.55 ms. Allocated memory is still 350.2 MB. Free memory was 312.5 MB in the beginning and 310.2 MB in the end (delta: 2.3 MB). Peak memory consumption was 7.0 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 44.11 ms. Allocated memory is still 350.2 MB. Free memory was 310.2 MB in the beginning and 308.2 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 27.68 ms. Allocated memory is still 350.2 MB. Free memory was 308.2 MB in the beginning and 305.1 MB in the end (delta: 3.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * RCFGBuilder took 1757.26 ms. Allocated memory is still 350.2 MB. Free memory was 305.1 MB in the beginning and 276.4 MB in the end (delta: 28.7 MB). Peak memory consumption was 158.7 MB. Max. memory is 16.0 GB. * TraceAbstraction took 9253.73 ms. Allocated memory was 350.2 MB in the beginning and 562.0 MB in the end (delta: 211.8 MB). Free memory was 275.3 MB in the beginning and 488.1 MB in the end (delta: -212.8 MB). There was no memory consumed. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 18]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L709] 0 int __unbuffered_cnt = 0; VAL [__unbuffered_cnt=0] [L711] 0 int __unbuffered_p2_EAX = 0; VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0] [L713] 0 int __unbuffered_p2_EBX = 0; VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, __unbuffered_p2_EBX=0] [L715] 0 int a = 0; VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, __unbuffered_p2_EBX=0, a=0] [L716] 0 _Bool main$tmp_guard0; VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, __unbuffered_p2_EBX=0, a=0, main$tmp_guard0=0] [L717] 0 _Bool main$tmp_guard1; VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, __unbuffered_p2_EBX=0, a=0, main$tmp_guard0=0, main$tmp_guard1=0] [L719] 0 int x = 0; VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, __unbuffered_p2_EBX=0, a=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0] [L721] 0 int y = 0; VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, __unbuffered_p2_EBX=0, a=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y=0] [L722] 0 _Bool y$flush_delayed; VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, __unbuffered_p2_EBX=0, a=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y=0, y$flush_delayed=0] [L723] 0 int y$mem_tmp; VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, __unbuffered_p2_EBX=0, a=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0] [L724] 0 _Bool y$r_buff0_thd0; VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, __unbuffered_p2_EBX=0, a=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0] [L725] 0 _Bool y$r_buff0_thd1; VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, __unbuffered_p2_EBX=0, a=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0] [L726] 0 _Bool y$r_buff0_thd2; VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, __unbuffered_p2_EBX=0, a=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0] [L727] 0 _Bool y$r_buff0_thd3; VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, __unbuffered_p2_EBX=0, a=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=0] [L728] 0 _Bool y$r_buff1_thd0; VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, __unbuffered_p2_EBX=0, a=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff1_thd0=0] [L729] 0 _Bool y$r_buff1_thd1; VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, __unbuffered_p2_EBX=0, a=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0] [L730] 0 _Bool y$r_buff1_thd2; VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, __unbuffered_p2_EBX=0, a=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0] [L731] 0 _Bool y$r_buff1_thd3; VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, __unbuffered_p2_EBX=0, a=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0] [L732] 0 _Bool y$read_delayed; VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, __unbuffered_p2_EBX=0, a=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0] [L733] 0 int *y$read_delayed_var; VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, __unbuffered_p2_EBX=0, a=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}] [L734] 0 int y$w_buff0; VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, __unbuffered_p2_EBX=0, a=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=0] [L735] 0 _Bool y$w_buff0_used; VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, __unbuffered_p2_EBX=0, a=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=0, y$w_buff0_used=0] [L736] 0 int y$w_buff1; VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, __unbuffered_p2_EBX=0, a=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=0, y$w_buff0_used=0, y$w_buff1=0] [L737] 0 _Bool y$w_buff1_used; VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, __unbuffered_p2_EBX=0, a=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=0, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0] [L739] 0 int z = 0; VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, __unbuffered_p2_EBX=0, a=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=0, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, z=0] [L740] 0 _Bool weak$$choice0; VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, __unbuffered_p2_EBX=0, a=0, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=0, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, z=0] [L741] 0 _Bool weak$$choice2; VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, __unbuffered_p2_EBX=0, a=0, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=0, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, z=0] [L823] 0 pthread_t t1211; VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, __unbuffered_p2_EBX=0, a=0, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=0, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, z=0] [L824] FCALL, FORK 0 pthread_create(&t1211, ((void *)0), P0, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, __unbuffered_p2_EBX=0, a=0, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=0, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, z=0] [L825] 0 pthread_t t1212; VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, __unbuffered_p2_EBX=0, a=0, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=0, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, z=0] [L826] FCALL, FORK 0 pthread_create(&t1212, ((void *)0), P1, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, __unbuffered_p2_EBX=0, a=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=0, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, z=0] [L827] 0 pthread_t t1213; VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, __unbuffered_p2_EBX=0, a=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=0, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, z=0] [L828] FCALL, FORK 0 pthread_create(&t1213, ((void *)0), P2, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, __unbuffered_p2_EBX=0, a=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=0, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, z=0] [L780] 3 y$w_buff1 = y$w_buff0 [L781] 3 y$w_buff0 = 2 [L782] 3 y$w_buff1_used = y$w_buff0_used [L783] 3 y$w_buff0_used = (_Bool)1 [L18] COND FALSE 3 !(!expression) [L785] 3 y$r_buff1_thd0 = y$r_buff0_thd0 [L786] 3 y$r_buff1_thd1 = y$r_buff0_thd1 [L787] 3 y$r_buff1_thd2 = y$r_buff0_thd2 [L788] 3 y$r_buff1_thd3 = y$r_buff0_thd3 [L789] 3 y$r_buff0_thd3 = (_Bool)1 VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, __unbuffered_p2_EBX=0, a=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0, z=0] [L792] 3 z = 1 VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, __unbuffered_p2_EBX=0, a=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0, z=1] [L795] 3 __unbuffered_p2_EAX = z VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=1, __unbuffered_p2_EBX=0, a=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0, z=1] [L798] 3 __unbuffered_p2_EBX = a VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=1, __unbuffered_p2_EBX=0, a=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0, z=1] [L745] 1 a = 1 VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=1, __unbuffered_p2_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0, z=1] [L748] 1 x = 1 VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=1, __unbuffered_p2_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=1, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0, z=1] [L760] 2 x = 2 VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=1, __unbuffered_p2_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=2, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0, z=1] [L763] 2 y = 1 VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=1, __unbuffered_p2_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=2, y=1, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0, z=1] [L766] EXPR 2 y$w_buff0_used && y$r_buff0_thd2 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd2 ? y$w_buff1 : y) [L766] EXPR 2 y$w_buff1_used && y$r_buff1_thd2 ? y$w_buff1 : y [L766] EXPR 2 y$w_buff0_used && y$r_buff0_thd2 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd2 ? y$w_buff1 : y) [L766] 2 y = y$w_buff0_used && y$r_buff0_thd2 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd2 ? y$w_buff1 : y) [L767] EXPR 2 y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : y$w_buff0_used [L767] 2 y$w_buff0_used = y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : y$w_buff0_used [L768] EXPR 2 y$w_buff0_used && y$r_buff0_thd2 || y$w_buff1_used && y$r_buff1_thd2 ? (_Bool)0 : y$w_buff1_used [L768] 2 y$w_buff1_used = y$w_buff0_used && y$r_buff0_thd2 || y$w_buff1_used && y$r_buff1_thd2 ? (_Bool)0 : y$w_buff1_used [L769] EXPR 2 y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : y$r_buff0_thd2 [L769] 2 y$r_buff0_thd2 = y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : y$r_buff0_thd2 [L770] EXPR 2 y$w_buff0_used && y$r_buff0_thd2 || y$w_buff1_used && y$r_buff1_thd2 ? (_Bool)0 : y$r_buff1_thd2 [L770] 2 y$r_buff1_thd2 = y$w_buff0_used && y$r_buff0_thd2 || y$w_buff1_used && y$r_buff1_thd2 ? (_Bool)0 : y$r_buff1_thd2 [L801] EXPR 3 y$w_buff0_used && y$r_buff0_thd3 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd3 ? y$w_buff1 : y) [L801] 3 y = y$w_buff0_used && y$r_buff0_thd3 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd3 ? y$w_buff1 : y) [L802] EXPR 3 y$w_buff0_used && y$r_buff0_thd3 ? (_Bool)0 : y$w_buff0_used [L802] 3 y$w_buff0_used = y$w_buff0_used && y$r_buff0_thd3 ? (_Bool)0 : y$w_buff0_used [L803] EXPR 3 y$w_buff0_used && y$r_buff0_thd3 || y$w_buff1_used && y$r_buff1_thd3 ? (_Bool)0 : y$w_buff1_used [L803] 3 y$w_buff1_used = y$w_buff0_used && y$r_buff0_thd3 || y$w_buff1_used && y$r_buff1_thd3 ? (_Bool)0 : y$w_buff1_used [L804] EXPR 3 y$w_buff0_used && y$r_buff0_thd3 ? (_Bool)0 : y$r_buff0_thd3 [L804] 3 y$r_buff0_thd3 = y$w_buff0_used && y$r_buff0_thd3 ? (_Bool)0 : y$r_buff0_thd3 [L805] EXPR 3 y$w_buff0_used && y$r_buff0_thd3 || y$w_buff1_used && y$r_buff1_thd3 ? (_Bool)0 : y$r_buff1_thd3 [L805] 3 y$r_buff1_thd3 = y$w_buff0_used && y$r_buff0_thd3 || y$w_buff1_used && y$r_buff1_thd3 ? (_Bool)0 : y$r_buff1_thd3 [L753] 1 __unbuffered_cnt = __unbuffered_cnt + 1 VAL [__unbuffered_cnt=1, __unbuffered_p2_EAX=1, __unbuffered_p2_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=2, y=2, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, z=1] [L773] 2 __unbuffered_cnt = __unbuffered_cnt + 1 VAL [__unbuffered_cnt=2, __unbuffered_p2_EAX=1, __unbuffered_p2_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=2, y=2, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, z=1] [L808] 3 __unbuffered_cnt = __unbuffered_cnt + 1 VAL [__unbuffered_cnt=3, __unbuffered_p2_EAX=1, __unbuffered_p2_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=2, y=2, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, z=1] [L830] 0 main$tmp_guard0 = __unbuffered_cnt == 3 VAL [__unbuffered_cnt=3, __unbuffered_p2_EAX=1, __unbuffered_p2_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=2, y=2, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, z=1] [L3] COND FALSE 0 !(!cond) VAL [__unbuffered_cnt=3, __unbuffered_p2_EAX=1, __unbuffered_p2_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=2, y=2, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, z=1] [L834] EXPR 0 y$w_buff0_used && y$r_buff0_thd0 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd0 ? y$w_buff1 : y) [L834] EXPR 0 y$w_buff1_used && y$r_buff1_thd0 ? y$w_buff1 : y [L834] EXPR 0 y$w_buff0_used && y$r_buff0_thd0 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd0 ? y$w_buff1 : y) [L834] 0 y = y$w_buff0_used && y$r_buff0_thd0 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd0 ? y$w_buff1 : y) [L835] EXPR 0 y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$w_buff0_used [L835] 0 y$w_buff0_used = y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$w_buff0_used [L836] EXPR 0 y$w_buff0_used && y$r_buff0_thd0 || y$w_buff1_used && y$r_buff1_thd0 ? (_Bool)0 : y$w_buff1_used [L836] 0 y$w_buff1_used = y$w_buff0_used && y$r_buff0_thd0 || y$w_buff1_used && y$r_buff1_thd0 ? (_Bool)0 : y$w_buff1_used [L837] EXPR 0 y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$r_buff0_thd0 [L837] 0 y$r_buff0_thd0 = y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$r_buff0_thd0 [L838] EXPR 0 y$w_buff0_used && y$r_buff0_thd0 || y$w_buff1_used && y$r_buff1_thd0 ? (_Bool)0 : y$r_buff1_thd0 [L838] 0 y$r_buff1_thd0 = y$w_buff0_used && y$r_buff0_thd0 || y$w_buff1_used && y$r_buff1_thd0 ? (_Bool)0 : y$r_buff1_thd0 [L841] 0 weak$$choice0 = __VERIFIER_nondet_bool() [L842] 0 weak$$choice2 = __VERIFIER_nondet_bool() [L843] 0 y$flush_delayed = weak$$choice2 [L844] 0 y$mem_tmp = y [L845] EXPR 0 !y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y : (y$w_buff0_used && y$r_buff0_thd0 ? y$w_buff0 : y$w_buff1) [L845] 0 y = !y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y : (y$w_buff0_used && y$r_buff0_thd0 ? y$w_buff0 : y$w_buff1) [L846] EXPR 0 weak$$choice2 ? y$w_buff0 : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$w_buff0 : (y$w_buff0_used && y$r_buff0_thd0 ? y$w_buff0 : y$w_buff0)) [L846] EXPR 0 !y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$w_buff0 : (y$w_buff0_used && y$r_buff0_thd0 ? y$w_buff0 : y$w_buff0) [L846] EXPR 0 weak$$choice2 ? y$w_buff0 : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$w_buff0 : (y$w_buff0_used && y$r_buff0_thd0 ? y$w_buff0 : y$w_buff0)) [L846] 0 y$w_buff0 = weak$$choice2 ? y$w_buff0 : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$w_buff0 : (y$w_buff0_used && y$r_buff0_thd0 ? y$w_buff0 : y$w_buff0)) [L847] EXPR 0 weak$$choice2 ? y$w_buff1 : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$w_buff1 : (y$w_buff0_used && y$r_buff0_thd0 ? y$w_buff1 : y$w_buff1)) [L847] EXPR 0 !y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$w_buff1 : (y$w_buff0_used && y$r_buff0_thd0 ? y$w_buff1 : y$w_buff1) [L847] EXPR 0 weak$$choice2 ? y$w_buff1 : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$w_buff1 : (y$w_buff0_used && y$r_buff0_thd0 ? y$w_buff1 : y$w_buff1)) [L847] 0 y$w_buff1 = weak$$choice2 ? y$w_buff1 : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$w_buff1 : (y$w_buff0_used && y$r_buff0_thd0 ? y$w_buff1 : y$w_buff1)) [L848] EXPR 0 weak$$choice2 ? y$w_buff0_used : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$w_buff0_used : (y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$w_buff0_used)) [L848] EXPR 0 !y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$w_buff0_used : (y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$w_buff0_used) [L848] EXPR 0 weak$$choice2 ? y$w_buff0_used : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$w_buff0_used : (y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$w_buff0_used)) [L848] 0 y$w_buff0_used = weak$$choice2 ? y$w_buff0_used : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$w_buff0_used : (y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$w_buff0_used)) [L849] EXPR 0 weak$$choice2 ? y$w_buff1_used : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$w_buff1_used : (y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : (_Bool)0)) [L849] EXPR 0 !y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$w_buff1_used : (y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : (_Bool)0) [L849] EXPR 0 weak$$choice2 ? y$w_buff1_used : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$w_buff1_used : (y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : (_Bool)0)) [L849] 0 y$w_buff1_used = weak$$choice2 ? y$w_buff1_used : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$w_buff1_used : (y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : (_Bool)0)) [L850] EXPR 0 weak$$choice2 ? y$r_buff0_thd0 : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$r_buff0_thd0 : (y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$r_buff0_thd0)) [L850] EXPR 0 !y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$r_buff0_thd0 : (y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$r_buff0_thd0) [L850] EXPR 0 weak$$choice2 ? y$r_buff0_thd0 : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$r_buff0_thd0 : (y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$r_buff0_thd0)) [L850] 0 y$r_buff0_thd0 = weak$$choice2 ? y$r_buff0_thd0 : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$r_buff0_thd0 : (y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$r_buff0_thd0)) [L851] EXPR 0 weak$$choice2 ? y$r_buff1_thd0 : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$r_buff1_thd0 : (y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : (_Bool)0)) [L851] EXPR 0 !y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$r_buff1_thd0 : (y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : (_Bool)0) [L851] EXPR 0 weak$$choice2 ? y$r_buff1_thd0 : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$r_buff1_thd0 : (y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : (_Bool)0)) [L851] 0 y$r_buff1_thd0 = weak$$choice2 ? y$r_buff1_thd0 : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$r_buff1_thd0 : (y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : (_Bool)0)) [L852] 0 main$tmp_guard1 = !(x == 2 && y == 2 && __unbuffered_p2_EAX == 1 && __unbuffered_p2_EBX == 0) [L853] EXPR 0 y$flush_delayed ? y$mem_tmp : y [L853] 0 y = y$flush_delayed ? y$mem_tmp : y [L854] 0 y$flush_delayed = (_Bool)0 VAL [__unbuffered_cnt=3, __unbuffered_p2_EAX=1, __unbuffered_p2_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, weak$$choice0=49, weak$$choice2=0, x=2, y=2, y$flush_delayed=0, y$mem_tmp=2, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, z=1] [L18] COND TRUE 0 !expression VAL [__unbuffered_cnt=3, __unbuffered_p2_EAX=1, __unbuffered_p2_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, weak$$choice0=49, weak$$choice2=0, x=2, y=2, y$flush_delayed=0, y$mem_tmp=2, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, z=1] [L18] 0 reach_error() VAL [__unbuffered_cnt=3, __unbuffered_p2_EAX=1, __unbuffered_p2_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, weak$$choice0=49, weak$$choice2=0, x=2, y=2, y$flush_delayed=0, y$mem_tmp=2, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, z=1] - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 99 locations, 2 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 11.0ms, RemoveRedundantFlowTime: 0.0ms, RemoveRedundantFlowUnfoldingTime: 0.0ms, BackfoldingTime: 0.0ms, BackfoldingUnfoldingTime: 0.0ms, FlowIncreaseByBackfolding: 0, BasicCegarLoop: VerificationResult: UNSAFE, OverallTime: 9023.1ms, OverallIterations: 17, TraceHistogramMax: 1, EmptinessCheckTime: 0.0ms, AutomataDifference: 5603.9ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 48.0ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 165 SDtfs, 566 SDslu, 652 SDs, 0 SdLazy, 1167 SolverSat, 325 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1222.7ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 248 GetRequests, 31 SyntacticMatches, 3 SemanticMatches, 214 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 528 ImplicationChecksByTransitivity, 2663.1ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=814occurred in iteration=12, InterpolantAutomatonStates: 194, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 85.9ms SsaConstructionTime, 650.6ms SatisfiabilityAnalysisTime, 2294.9ms InterpolantComputationTime, 1141 NumberOfCodeBlocks, 1141 NumberOfCodeBlocksAsserted, 17 NumberOfCheckSat, 1049 ConstructedInterpolants, 0 QuantifiedInterpolants, 5593 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 16 InterpolantComputations, 16 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 incorrect! Received shutdown request...