/usr/bin/java -Xmx8000000000 -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-OGIterative-CovSimpl-Hitting.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-wmm/mix057_rmo.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-2cf4d3f9dd5fed411db405f577e28237a543b59a-2cf4d3f [2021-08-13 15:21:26,658 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-08-13 15:21:26,659 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-08-13 15:21:26,688 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-08-13 15:21:26,736 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-08-13 15:21:26,736 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-08-13 15:21:26,737 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-08-13 15:21:26,749 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-OGIterative-CovSimpl-Hitting.epf [2021-08-13 15:21:26,772 INFO L113 SettingsManager]: Loading preferences was successful [2021-08-13 15:21:26,772 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-08-13 15:21:26,773 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-08-13 15:21:26,773 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-08-13 15:21:26,773 INFO L138 SettingsManager]: * Use SBE=true [2021-08-13 15:21:26,773 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-08-13 15:21:26,773 INFO L138 SettingsManager]: * sizeof long=4 [2021-08-13 15:21:26,773 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-08-13 15:21:26,773 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-08-13 15:21:26,774 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-08-13 15:21:26,774 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-08-13 15:21:26,774 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-08-13 15:21:26,774 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-08-13 15:21:26,774 INFO L138 SettingsManager]: * sizeof long double=12 [2021-08-13 15:21:26,774 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-08-13 15:21:26,774 INFO L138 SettingsManager]: * Use constant arrays=true [2021-08-13 15:21:26,774 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-08-13 15:21:26,774 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-08-13 15:21:26,775 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-08-13 15:21:26,775 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-08-13 15:21:26,775 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-08-13 15:21:26,775 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-13 15:21:26,775 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-08-13 15:21:26,775 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-08-13 15:21:26,775 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-08-13 15:21:26,775 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-08-13 15:21:26,775 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-08-13 15:21:26,776 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-08-13 15:21:26,776 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-08-13 15:21:26,776 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-08-13 15:21:26,776 INFO L138 SettingsManager]: * Compute cosets for OwickiGries annotation iteratively=true [2021-08-13 15:21:26,776 INFO L138 SettingsManager]: * Use hitting sets in computation of OwickiGries annotation=true [2021-08-13 15:21:26,776 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-08-13 15:21:26,776 INFO L138 SettingsManager]: * Simplify away covered predicates in OwickiGries annotation=true 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-08-13 15:21:27,130 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-08-13 15:21:27,152 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-08-13 15:21:27,154 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-08-13 15:21:27,155 INFO L271 PluginConnector]: Initializing CDTParser... [2021-08-13 15:21:27,155 INFO L275 PluginConnector]: CDTParser initialized [2021-08-13 15:21:27,156 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/mix057_rmo.opt.i [2021-08-13 15:21:27,219 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/76f31426c/90e4d794a2b24c2abe6044d9801ad508/FLAGb263b9214 [2021-08-13 15:21:27,658 INFO L306 CDTParser]: Found 1 translation units. [2021-08-13 15:21:27,658 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/mix057_rmo.opt.i [2021-08-13 15:21:27,668 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/76f31426c/90e4d794a2b24c2abe6044d9801ad508/FLAGb263b9214 [2021-08-13 15:21:28,032 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/76f31426c/90e4d794a2b24c2abe6044d9801ad508 [2021-08-13 15:21:28,037 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-08-13 15:21:28,039 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-08-13 15:21:28,042 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-08-13 15:21:28,042 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-08-13 15:21:28,063 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-08-13 15:21:28,065 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.08 03:21:28" (1/1) ... [2021-08-13 15:21:28,066 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@159c9cc3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.08 03:21:28, skipping insertion in model container [2021-08-13 15:21:28,066 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.08 03:21:28" (1/1) ... [2021-08-13 15:21:28,072 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-08-13 15:21:28,127 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-08-13 15:21:28,284 WARN L224 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/mix057_rmo.opt.i[948,961] [2021-08-13 15:21:28,466 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-13 15:21:28,476 INFO L203 MainTranslator]: Completed pre-run [2021-08-13 15:21:28,485 WARN L224 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/mix057_rmo.opt.i[948,961] [2021-08-13 15:21:28,541 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-13 15:21:28,601 INFO L208 MainTranslator]: Completed translation [2021-08-13 15:21:28,602 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.08 03:21:28 WrapperNode [2021-08-13 15:21:28,602 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-08-13 15:21:28,603 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-08-13 15:21:28,603 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-08-13 15:21:28,605 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-08-13 15:21:28,610 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.08 03:21:28" (1/1) ... [2021-08-13 15:21:28,637 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.08 03:21:28" (1/1) ... [2021-08-13 15:21:28,667 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-08-13 15:21:28,668 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-08-13 15:21:28,668 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-08-13 15:21:28,668 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-08-13 15:21:28,674 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.08 03:21:28" (1/1) ... [2021-08-13 15:21:28,675 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.08 03:21:28" (1/1) ... [2021-08-13 15:21:28,688 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.08 03:21:28" (1/1) ... [2021-08-13 15:21:28,688 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.08 03:21:28" (1/1) ... [2021-08-13 15:21:28,694 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.08 03:21:28" (1/1) ... [2021-08-13 15:21:28,696 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.08 03:21:28" (1/1) ... [2021-08-13 15:21:28,698 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.08 03:21:28" (1/1) ... [2021-08-13 15:21:28,700 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-08-13 15:21:28,716 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-08-13 15:21:28,716 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-08-13 15:21:28,716 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-08-13 15:21:28,717 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.08 03:21:28" (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 [2021-08-13 15:21:28,830 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-08-13 15:21:28,830 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-08-13 15:21:28,830 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-08-13 15:21:28,844 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-08-13 15:21:28,844 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2021-08-13 15:21:28,844 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2021-08-13 15:21:28,844 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2021-08-13 15:21:28,845 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2021-08-13 15:21:28,845 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2021-08-13 15:21:28,845 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2021-08-13 15:21:28,845 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2021-08-13 15:21:28,845 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2021-08-13 15:21:28,845 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-08-13 15:21:28,845 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-08-13 15:21:28,845 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-08-13 15:21:28,845 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-08-13 15:21:28,847 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-08-13 15:21:30,042 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-08-13 15:21:30,042 INFO L299 CfgBuilder]: Removed 10 assume(true) statements. [2021-08-13 15:21:30,044 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.08 03:21:30 BoogieIcfgContainer [2021-08-13 15:21:30,044 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-08-13 15:21:30,045 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-08-13 15:21:30,045 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-08-13 15:21:30,047 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-08-13 15:21:30,047 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.08 03:21:28" (1/3) ... [2021-08-13 15:21:30,047 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@61cb13e4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.08 03:21:30, skipping insertion in model container [2021-08-13 15:21:30,047 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.08 03:21:28" (2/3) ... [2021-08-13 15:21:30,047 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@61cb13e4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.08 03:21:30, skipping insertion in model container [2021-08-13 15:21:30,048 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.08 03:21:30" (3/3) ... [2021-08-13 15:21:30,048 INFO L111 eAbstractionObserver]: Analyzing ICFG mix057_rmo.opt.i [2021-08-13 15:21:30,052 INFO L206 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-08-13 15:21:30,053 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2021-08-13 15:21:30,053 INFO L445 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-08-13 15:21:30,075 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:21:30,075 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:21:30,075 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:21:30,076 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:21:30,076 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:21:30,076 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:21:30,076 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:21:30,076 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:21:30,076 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:21:30,076 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:21:30,076 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:21:30,076 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:21:30,077 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:21:30,077 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:21:30,077 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:21:30,077 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:21:30,077 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:21:30,077 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:21:30,077 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:21:30,077 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:21:30,077 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:21:30,077 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:21:30,077 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:21:30,077 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:21:30,078 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:21:30,078 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:21:30,078 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:21:30,078 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:21:30,078 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:21:30,078 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:21:30,078 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:21:30,078 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:21:30,078 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:21:30,078 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:21:30,079 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:21:30,079 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:21:30,079 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:21:30,079 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:21:30,079 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:21:30,079 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:21:30,079 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:21:30,079 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:21:30,079 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:21:30,079 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:21:30,080 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:21:30,080 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:21:30,080 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:21:30,080 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:21:30,080 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:21:30,080 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:21:30,080 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:21:30,081 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:21:30,081 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:21:30,081 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:21:30,081 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:21:30,081 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:21:30,081 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:21:30,081 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:21:30,081 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork0___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:21:30,081 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:21:30,081 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork0___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:21:30,081 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:21:30,082 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork0___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:21:30,082 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:21:30,082 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork0___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:21:30,082 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:21:30,082 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:21:30,082 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:21:30,082 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:21:30,082 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:21:30,082 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:21:30,082 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:21:30,082 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:21:30,083 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:21:30,083 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:21:30,083 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:21:30,083 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:21:30,083 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:21:30,083 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:21:30,083 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:21:30,084 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:21:30,084 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:21:30,084 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:21:30,084 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:21:30,085 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork0___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:21:30,085 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:21:30,085 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:21:30,085 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:21:30,085 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:21:30,085 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:21:30,086 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:21:30,086 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:21:30,086 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:21:30,086 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:21:30,086 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:21:30,086 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:21:30,087 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:21:30,087 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:21:30,087 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:21:30,087 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:21:30,088 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:21:30,088 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:21:30,088 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:21:30,089 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:21:30,089 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:21:30,089 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:21:30,089 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:21:30,089 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:21:30,089 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:21:30,089 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:21:30,090 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:21:30,090 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:21:30,090 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:21:30,090 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:21:30,091 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-08-13 15:21:30,105 INFO L255 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2021-08-13 15:21:30,117 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-08-13 15:21:30,117 INFO L379 AbstractCegarLoop]: Hoare is false [2021-08-13 15:21:30,117 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-08-13 15:21:30,117 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-08-13 15:21:30,117 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-08-13 15:21:30,117 INFO L383 AbstractCegarLoop]: Difference is false [2021-08-13 15:21:30,117 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-08-13 15:21:30,117 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-08-13 15:21:30,124 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 135 places, 124 transitions, 268 flow [2021-08-13 15:21:30,151 INFO L129 PetriNetUnfolder]: 2/120 cut-off events. [2021-08-13 15:21:30,152 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-08-13 15:21:30,154 INFO L84 FinitePrefix]: Finished finitePrefix Result has 133 conditions, 120 events. 2/120 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 62 event pairs, 0 based on Foata normal form. 0/116 useless extension candidates. Maximal degree in co-relation 84. Up to 2 conditions per place. [2021-08-13 15:21:30,154 INFO L82 GeneralOperation]: Start removeDead. Operand has 135 places, 124 transitions, 268 flow [2021-08-13 15:21:30,157 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 131 places, 120 transitions, 252 flow [2021-08-13 15:21:30,168 INFO L129 PetriNetUnfolder]: 0/85 cut-off events. [2021-08-13 15:21:30,168 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-08-13 15:21:30,168 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 15:21:30,169 INFO L266 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] [2021-08-13 15:21:30,169 INFO L430 AbstractCegarLoop]: === Iteration 1 === [P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-08-13 15:21:30,173 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 15:21:30,173 INFO L82 PathProgramCache]: Analyzing trace with hash 1183912701, now seen corresponding path program 1 times [2021-08-13 15:21:30,178 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 15:21:30,178 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1459875237] [2021-08-13 15:21:30,178 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 15:21:30,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 15:21:30,368 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 15:21:30,368 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 15:21:30,369 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 15:21:30,369 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 15:21:30,376 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-13 15:21:30,376 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 15:21:30,377 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1459875237] [2021-08-13 15:21:30,377 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1459875237] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 15:21:30,377 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 15:21:30,377 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-08-13 15:21:30,378 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [389444104] [2021-08-13 15:21:30,383 INFO L462 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-08-13 15:21:30,383 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 15:21:30,391 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-13 15:21:30,392 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-13 15:21:30,393 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 114 out of 124 [2021-08-13 15:21:30,396 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 131 places, 120 transitions, 252 flow. Second operand has 3 states, 3 states have (on average 114.66666666666667) internal successors, (344), 3 states have internal predecessors, (344), 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) [2021-08-13 15:21:30,396 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 15:21:30,396 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 114 of 124 [2021-08-13 15:21:30,397 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 15:21:30,486 INFO L129 PetriNetUnfolder]: 16/242 cut-off events. [2021-08-13 15:21:30,486 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-08-13 15:21:30,488 INFO L84 FinitePrefix]: Finished finitePrefix Result has 290 conditions, 242 events. 16/242 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 722 event pairs, 6 based on Foata normal form. 9/240 useless extension candidates. Maximal degree in co-relation 239. Up to 27 conditions per place. [2021-08-13 15:21:30,489 INFO L132 encePairwiseOnDemand]: 119/124 looper letters, 7 selfloop transitions, 2 changer transitions 0/119 dead transitions. [2021-08-13 15:21:30,489 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 131 places, 119 transitions, 268 flow [2021-08-13 15:21:30,490 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-13 15:21:30,492 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-08-13 15:21:30,497 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 356 transitions. [2021-08-13 15:21:30,499 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.956989247311828 [2021-08-13 15:21:30,499 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 356 transitions. [2021-08-13 15:21:30,499 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 356 transitions. [2021-08-13 15:21:30,500 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 15:21:30,502 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 356 transitions. [2021-08-13 15:21:30,505 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 118.66666666666667) internal successors, (356), 3 states have internal predecessors, (356), 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) [2021-08-13 15:21:30,508 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 124.0) internal successors, (496), 4 states have internal predecessors, (496), 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) [2021-08-13 15:21:30,508 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 124.0) internal successors, (496), 4 states have internal predecessors, (496), 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) [2021-08-13 15:21:30,509 INFO L348 CegarLoopForPetriNet]: 131 programPoint places, 0 predicate places. [2021-08-13 15:21:30,509 INFO L482 AbstractCegarLoop]: Abstraction has has 131 places, 119 transitions, 268 flow [2021-08-13 15:21:30,509 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 114.66666666666667) internal successors, (344), 3 states have internal predecessors, (344), 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) [2021-08-13 15:21:30,509 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 15:21:30,509 INFO L266 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, 1] [2021-08-13 15:21:30,509 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-08-13 15:21:30,509 INFO L430 AbstractCegarLoop]: === Iteration 2 === [P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-08-13 15:21:30,510 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 15:21:30,510 INFO L82 PathProgramCache]: Analyzing trace with hash -715615938, now seen corresponding path program 1 times [2021-08-13 15:21:30,510 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 15:21:30,510 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1374566329] [2021-08-13 15:21:30,510 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 15:21:30,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 15:21:30,617 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 15:21:30,618 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 15:21:30,618 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 15:21:30,618 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 15:21:30,625 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-08-13 15:21:30,626 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-08-13 15:21:30,638 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 15:21:30,639 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-08-13 15:21:30,644 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 15:21:30,645 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-08-13 15:21:30,651 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 15:21:30,651 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 15:21:30,652 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-13 15:21:30,652 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 15:21:30,652 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1374566329] [2021-08-13 15:21:30,652 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1374566329] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 15:21:30,652 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 15:21:30,652 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-08-13 15:21:30,652 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [940077598] [2021-08-13 15:21:30,653 INFO L462 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-08-13 15:21:30,653 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 15:21:30,654 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-08-13 15:21:30,654 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-08-13 15:21:30,655 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 111 out of 124 [2021-08-13 15:21:30,656 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 131 places, 119 transitions, 268 flow. Second operand has 6 states, 6 states have (on average 112.16666666666667) internal successors, (673), 6 states have internal predecessors, (673), 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) [2021-08-13 15:21:30,656 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 15:21:30,656 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 111 of 124 [2021-08-13 15:21:30,656 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 15:21:30,815 INFO L129 PetriNetUnfolder]: 143/846 cut-off events. [2021-08-13 15:21:30,815 INFO L130 PetriNetUnfolder]: For 8/8 co-relation queries the response was YES. [2021-08-13 15:21:30,819 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1204 conditions, 846 events. 143/846 cut-off events. For 8/8 co-relation queries the response was YES. Maximal size of possible extension queue 67. Compared 6134 event pairs, 34 based on Foata normal form. 0/813 useless extension candidates. Maximal degree in co-relation 1150. Up to 149 conditions per place. [2021-08-13 15:21:30,821 INFO L132 encePairwiseOnDemand]: 117/124 looper letters, 10 selfloop transitions, 3 changer transitions 22/143 dead transitions. [2021-08-13 15:21:30,822 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 139 places, 143 transitions, 390 flow [2021-08-13 15:21:30,822 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-08-13 15:21:30,822 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-08-13 15:21:30,824 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1034 transitions. [2021-08-13 15:21:30,825 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.9265232974910395 [2021-08-13 15:21:30,825 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 1034 transitions. [2021-08-13 15:21:30,825 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 1034 transitions. [2021-08-13 15:21:30,826 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 15:21:30,826 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 1034 transitions. [2021-08-13 15:21:30,828 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 114.88888888888889) internal successors, (1034), 9 states have internal predecessors, (1034), 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) [2021-08-13 15:21:30,830 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 124.0) internal successors, (1240), 10 states have internal predecessors, (1240), 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) [2021-08-13 15:21:30,831 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 124.0) internal successors, (1240), 10 states have internal predecessors, (1240), 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) [2021-08-13 15:21:30,831 INFO L348 CegarLoopForPetriNet]: 131 programPoint places, 8 predicate places. [2021-08-13 15:21:30,831 INFO L482 AbstractCegarLoop]: Abstraction has has 139 places, 143 transitions, 390 flow [2021-08-13 15:21:30,832 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 112.16666666666667) internal successors, (673), 6 states have internal predecessors, (673), 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) [2021-08-13 15:21:30,832 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 15:21:30,832 INFO L266 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, 1, 1, 1] [2021-08-13 15:21:30,832 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-08-13 15:21:30,832 INFO L430 AbstractCegarLoop]: === Iteration 3 === [P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-08-13 15:21:30,833 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 15:21:30,833 INFO L82 PathProgramCache]: Analyzing trace with hash -192323841, now seen corresponding path program 1 times [2021-08-13 15:21:30,833 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 15:21:30,833 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [653162650] [2021-08-13 15:21:30,833 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 15:21:30,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 15:21:30,948 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 15:21:30,948 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 15:21:30,949 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 15:21:30,949 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 15:21:30,952 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-08-13 15:21:30,952 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-08-13 15:21:30,964 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 15:21:30,964 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-08-13 15:21:30,970 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 15:21:30,970 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-08-13 15:21:30,976 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 15:21:30,976 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 15:21:30,977 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-13 15:21:30,977 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 15:21:30,977 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [653162650] [2021-08-13 15:21:30,977 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [653162650] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 15:21:30,977 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 15:21:30,977 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-08-13 15:21:30,977 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [862941431] [2021-08-13 15:21:30,978 INFO L462 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-08-13 15:21:30,978 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 15:21:30,978 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-08-13 15:21:30,978 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-08-13 15:21:30,979 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 111 out of 124 [2021-08-13 15:21:30,980 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 139 places, 143 transitions, 390 flow. Second operand has 6 states, 6 states have (on average 112.16666666666667) internal successors, (673), 6 states have internal predecessors, (673), 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) [2021-08-13 15:21:30,980 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 15:21:30,980 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 111 of 124 [2021-08-13 15:21:30,980 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 15:21:31,428 INFO L129 PetriNetUnfolder]: 912/3534 cut-off events. [2021-08-13 15:21:31,428 INFO L130 PetriNetUnfolder]: For 213/249 co-relation queries the response was YES. [2021-08-13 15:21:31,442 INFO L84 FinitePrefix]: Finished finitePrefix Result has 5903 conditions, 3534 events. 912/3534 cut-off events. For 213/249 co-relation queries the response was YES. Maximal size of possible extension queue 255. Compared 36247 event pairs, 180 based on Foata normal form. 0/3433 useless extension candidates. Maximal degree in co-relation 5846. Up to 548 conditions per place. [2021-08-13 15:21:31,448 INFO L132 encePairwiseOnDemand]: 117/124 looper letters, 10 selfloop transitions, 3 changer transitions 62/185 dead transitions. [2021-08-13 15:21:31,448 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 147 places, 185 transitions, 664 flow [2021-08-13 15:21:31,448 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-08-13 15:21:31,448 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-08-13 15:21:31,450 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1034 transitions. [2021-08-13 15:21:31,450 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.9265232974910395 [2021-08-13 15:21:31,450 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 1034 transitions. [2021-08-13 15:21:31,450 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 1034 transitions. [2021-08-13 15:21:31,451 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 15:21:31,451 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 1034 transitions. [2021-08-13 15:21:31,452 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 114.88888888888889) internal successors, (1034), 9 states have internal predecessors, (1034), 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) [2021-08-13 15:21:31,454 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 124.0) internal successors, (1240), 10 states have internal predecessors, (1240), 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) [2021-08-13 15:21:31,454 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 124.0) internal successors, (1240), 10 states have internal predecessors, (1240), 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) [2021-08-13 15:21:31,454 INFO L348 CegarLoopForPetriNet]: 131 programPoint places, 16 predicate places. [2021-08-13 15:21:31,455 INFO L482 AbstractCegarLoop]: Abstraction has has 147 places, 185 transitions, 664 flow [2021-08-13 15:21:31,455 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 112.16666666666667) internal successors, (673), 6 states have internal predecessors, (673), 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) [2021-08-13 15:21:31,455 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 15:21:31,455 INFO L266 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, 1, 1, 1, 1] [2021-08-13 15:21:31,455 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-08-13 15:21:31,455 INFO L430 AbstractCegarLoop]: === Iteration 4 === [P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-08-13 15:21:31,456 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 15:21:31,456 INFO L82 PathProgramCache]: Analyzing trace with hash -1041286849, now seen corresponding path program 1 times [2021-08-13 15:21:31,456 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 15:21:31,456 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1905942864] [2021-08-13 15:21:31,456 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 15:21:31,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 15:21:31,505 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 15:21:31,506 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 15:21:31,506 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 15:21:31,506 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 15:21:31,509 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-08-13 15:21:31,509 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-08-13 15:21:31,520 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 15:21:31,520 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-08-13 15:21:31,525 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 15:21:31,526 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-08-13 15:21:31,532 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 15:21:31,532 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 15:21:31,532 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-13 15:21:31,532 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 15:21:31,532 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1905942864] [2021-08-13 15:21:31,532 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1905942864] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 15:21:31,533 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 15:21:31,533 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-08-13 15:21:31,533 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [478391319] [2021-08-13 15:21:31,533 INFO L462 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-08-13 15:21:31,533 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 15:21:31,534 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-08-13 15:21:31,534 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-08-13 15:21:31,534 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 111 out of 124 [2021-08-13 15:21:31,535 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 147 places, 185 transitions, 664 flow. Second operand has 6 states, 6 states have (on average 112.33333333333333) internal successors, (674), 6 states have internal predecessors, (674), 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) [2021-08-13 15:21:31,535 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 15:21:31,535 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 111 of 124 [2021-08-13 15:21:31,535 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 15:21:32,145 INFO L129 PetriNetUnfolder]: 943/4552 cut-off events. [2021-08-13 15:21:32,145 INFO L130 PetriNetUnfolder]: For 720/1200 co-relation queries the response was YES. [2021-08-13 15:21:32,162 INFO L84 FinitePrefix]: Finished finitePrefix Result has 8697 conditions, 4552 events. 943/4552 cut-off events. For 720/1200 co-relation queries the response was YES. Maximal size of possible extension queue 352. Compared 53328 event pairs, 96 based on Foata normal form. 14/4465 useless extension candidates. Maximal degree in co-relation 8637. Up to 756 conditions per place. [2021-08-13 15:21:32,168 INFO L132 encePairwiseOnDemand]: 118/124 looper letters, 15 selfloop transitions, 3 changer transitions 87/215 dead transitions. [2021-08-13 15:21:32,168 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 155 places, 215 transitions, 1028 flow [2021-08-13 15:21:32,169 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-08-13 15:21:32,169 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-08-13 15:21:32,170 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1029 transitions. [2021-08-13 15:21:32,170 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.9220430107526881 [2021-08-13 15:21:32,170 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 1029 transitions. [2021-08-13 15:21:32,171 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 1029 transitions. [2021-08-13 15:21:32,171 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 15:21:32,171 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 1029 transitions. [2021-08-13 15:21:32,173 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 114.33333333333333) internal successors, (1029), 9 states have internal predecessors, (1029), 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) [2021-08-13 15:21:32,174 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 124.0) internal successors, (1240), 10 states have internal predecessors, (1240), 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) [2021-08-13 15:21:32,174 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 124.0) internal successors, (1240), 10 states have internal predecessors, (1240), 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) [2021-08-13 15:21:32,174 INFO L348 CegarLoopForPetriNet]: 131 programPoint places, 24 predicate places. [2021-08-13 15:21:32,174 INFO L482 AbstractCegarLoop]: Abstraction has has 155 places, 215 transitions, 1028 flow [2021-08-13 15:21:32,175 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 112.33333333333333) internal successors, (674), 6 states have internal predecessors, (674), 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) [2021-08-13 15:21:32,175 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 15:21:32,175 INFO L266 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, 1, 1, 1, 1, 1] [2021-08-13 15:21:32,175 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-08-13 15:21:32,175 INFO L430 AbstractCegarLoop]: === Iteration 5 === [P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-08-13 15:21:32,175 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 15:21:32,175 INFO L82 PathProgramCache]: Analyzing trace with hash -1031707490, now seen corresponding path program 1 times [2021-08-13 15:21:32,176 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 15:21:32,176 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [12026382] [2021-08-13 15:21:32,176 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 15:21:32,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 15:21:32,307 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 15:21:32,308 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 15:21:32,308 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 15:21:32,309 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 15:21:32,375 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 15:21:32,375 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 15:21:32,380 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 15:21:32,380 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-08-13 15:21:32,386 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 15:21:32,387 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-08-13 15:21:32,407 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 15:21:32,408 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-08-13 15:21:32,420 INFO L142 QuantifierPusher]: treesize reduction 10, result has 80.4 percent of original size [2021-08-13 15:21:32,421 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-08-13 15:21:32,432 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-08-13 15:21:32,433 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-08-13 15:21:32,461 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 15:21:32,461 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-08-13 15:21:32,468 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 15:21:32,469 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-08-13 15:21:32,476 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 15:21:32,476 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 15:21:32,477 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-13 15:21:32,477 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 15:21:32,477 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [12026382] [2021-08-13 15:21:32,477 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [12026382] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 15:21:32,477 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 15:21:32,477 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-08-13 15:21:32,477 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [285258849] [2021-08-13 15:21:32,478 INFO L462 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-08-13 15:21:32,478 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 15:21:32,478 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-08-13 15:21:32,478 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2021-08-13 15:21:32,479 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 103 out of 124 [2021-08-13 15:21:32,480 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 155 places, 215 transitions, 1028 flow. Second operand has 11 states, 11 states have (on average 104.0909090909091) internal successors, (1145), 11 states have internal predecessors, (1145), 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) [2021-08-13 15:21:32,480 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 15:21:32,480 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 103 of 124 [2021-08-13 15:21:32,480 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 15:21:34,706 INFO L129 PetriNetUnfolder]: 4878/14990 cut-off events. [2021-08-13 15:21:34,706 INFO L130 PetriNetUnfolder]: For 6449/7360 co-relation queries the response was YES. [2021-08-13 15:21:34,774 INFO L84 FinitePrefix]: Finished finitePrefix Result has 33287 conditions, 14990 events. 4878/14990 cut-off events. For 6449/7360 co-relation queries the response was YES. Maximal size of possible extension queue 1086. Compared 187508 event pairs, 644 based on Foata normal form. 7/14768 useless extension candidates. Maximal degree in co-relation 33220. Up to 2366 conditions per place. [2021-08-13 15:21:34,795 INFO L132 encePairwiseOnDemand]: 111/124 looper letters, 19 selfloop transitions, 11 changer transitions 314/436 dead transitions. [2021-08-13 15:21:34,795 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 170 places, 436 transitions, 3270 flow [2021-08-13 15:21:34,795 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-08-13 15:21:34,795 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2021-08-13 15:21:34,798 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 1712 transitions. [2021-08-13 15:21:34,799 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.8629032258064516 [2021-08-13 15:21:34,799 INFO L72 ComplementDD]: Start complementDD. Operand 16 states and 1712 transitions. [2021-08-13 15:21:34,799 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 1712 transitions. [2021-08-13 15:21:34,800 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 15:21:34,800 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 16 states and 1712 transitions. [2021-08-13 15:21:34,804 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 17 states, 16 states have (on average 107.0) internal successors, (1712), 16 states have internal predecessors, (1712), 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) [2021-08-13 15:21:34,807 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 17 states, 17 states have (on average 124.0) internal successors, (2108), 17 states have internal predecessors, (2108), 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) [2021-08-13 15:21:34,807 INFO L81 ComplementDD]: Finished complementDD. Result has 17 states, 17 states have (on average 124.0) internal successors, (2108), 17 states have internal predecessors, (2108), 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) [2021-08-13 15:21:34,807 INFO L348 CegarLoopForPetriNet]: 131 programPoint places, 39 predicate places. [2021-08-13 15:21:34,807 INFO L482 AbstractCegarLoop]: Abstraction has has 170 places, 436 transitions, 3270 flow [2021-08-13 15:21:34,808 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 104.0909090909091) internal successors, (1145), 11 states have internal predecessors, (1145), 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) [2021-08-13 15:21:34,808 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 15:21:34,808 INFO L266 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, 1, 1, 1, 1, 1, 1] [2021-08-13 15:21:34,808 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-08-13 15:21:34,809 INFO L430 AbstractCegarLoop]: === Iteration 6 === [P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-08-13 15:21:34,809 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 15:21:34,809 INFO L82 PathProgramCache]: Analyzing trace with hash 1011205682, now seen corresponding path program 1 times [2021-08-13 15:21:34,809 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 15:21:34,810 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2043328883] [2021-08-13 15:21:34,810 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 15:21:34,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 15:21:34,898 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 15:21:34,899 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 15:21:34,899 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 15:21:34,899 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 15:21:34,902 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 15:21:34,902 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-08-13 15:21:34,909 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 15:21:34,910 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-08-13 15:21:34,920 INFO L142 QuantifierPusher]: treesize reduction 31, result has 40.4 percent of original size [2021-08-13 15:21:34,920 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-08-13 15:21:34,936 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-08-13 15:21:34,936 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-08-13 15:21:34,948 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 15:21:34,949 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-08-13 15:21:34,955 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 15:21:34,956 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-08-13 15:21:34,963 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 15:21:34,963 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 15:21:34,964 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-13 15:21:34,964 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 15:21:34,964 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2043328883] [2021-08-13 15:21:34,964 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2043328883] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 15:21:34,964 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 15:21:34,964 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-08-13 15:21:34,964 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [966805140] [2021-08-13 15:21:34,965 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-08-13 15:21:34,965 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 15:21:34,965 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-08-13 15:21:34,965 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2021-08-13 15:21:34,966 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 105 out of 124 [2021-08-13 15:21:34,967 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 170 places, 436 transitions, 3270 flow. Second operand has 9 states, 9 states have (on average 106.22222222222223) internal successors, (956), 9 states have internal predecessors, (956), 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) [2021-08-13 15:21:34,967 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 15:21:34,967 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 105 of 124 [2021-08-13 15:21:34,967 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 15:21:36,997 INFO L129 PetriNetUnfolder]: 5404/16570 cut-off events. [2021-08-13 15:21:36,997 INFO L130 PetriNetUnfolder]: For 10229/12339 co-relation queries the response was YES. [2021-08-13 15:21:37,175 INFO L84 FinitePrefix]: Finished finitePrefix Result has 42927 conditions, 16570 events. 5404/16570 cut-off events. For 10229/12339 co-relation queries the response was YES. Maximal size of possible extension queue 1214. Compared 210341 event pairs, 594 based on Foata normal form. 237/16556 useless extension candidates. Maximal degree in co-relation 42855. Up to 4413 conditions per place. [2021-08-13 15:21:37,194 INFO L132 encePairwiseOnDemand]: 114/124 looper letters, 22 selfloop transitions, 8 changer transitions 477/601 dead transitions. [2021-08-13 15:21:37,194 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 181 places, 601 transitions, 5792 flow [2021-08-13 15:21:37,195 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-08-13 15:21:37,195 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2021-08-13 15:21:37,196 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 1320 transitions. [2021-08-13 15:21:37,197 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.8870967741935484 [2021-08-13 15:21:37,197 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 1320 transitions. [2021-08-13 15:21:37,197 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 1320 transitions. [2021-08-13 15:21:37,198 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 15:21:37,198 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 1320 transitions. [2021-08-13 15:21:37,200 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 110.0) internal successors, (1320), 12 states have internal predecessors, (1320), 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) [2021-08-13 15:21:37,202 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 124.0) internal successors, (1612), 13 states have internal predecessors, (1612), 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) [2021-08-13 15:21:37,202 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 124.0) internal successors, (1612), 13 states have internal predecessors, (1612), 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) [2021-08-13 15:21:37,202 INFO L348 CegarLoopForPetriNet]: 131 programPoint places, 50 predicate places. [2021-08-13 15:21:37,202 INFO L482 AbstractCegarLoop]: Abstraction has has 181 places, 601 transitions, 5792 flow [2021-08-13 15:21:37,203 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 106.22222222222223) internal successors, (956), 9 states have internal predecessors, (956), 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) [2021-08-13 15:21:37,203 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 15:21:37,203 INFO L266 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, 1, 1, 1, 1, 1, 1, 1] [2021-08-13 15:21:37,203 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-08-13 15:21:37,203 INFO L430 AbstractCegarLoop]: === Iteration 7 === [P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-08-13 15:21:37,203 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 15:21:37,204 INFO L82 PathProgramCache]: Analyzing trace with hash 31525918, now seen corresponding path program 1 times [2021-08-13 15:21:37,204 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 15:21:37,204 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [754954120] [2021-08-13 15:21:37,204 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 15:21:37,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 15:21:37,268 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 15:21:37,269 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 15:21:37,269 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 15:21:37,269 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 15:21:37,272 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 15:21:37,272 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 15:21:37,277 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 15:21:37,277 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-08-13 15:21:37,285 INFO L142 QuantifierPusher]: treesize reduction 10, result has 81.5 percent of original size [2021-08-13 15:21:37,286 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-08-13 15:21:37,301 INFO L142 QuantifierPusher]: treesize reduction 20, result has 79.6 percent of original size [2021-08-13 15:21:37,302 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 78 [2021-08-13 15:21:37,309 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-08-13 15:21:37,309 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-08-13 15:21:37,323 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 15:21:37,323 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-08-13 15:21:37,331 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 15:21:37,331 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-08-13 15:21:37,339 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 15:21:37,339 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 15:21:37,340 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-13 15:21:37,340 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 15:21:37,340 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [754954120] [2021-08-13 15:21:37,340 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [754954120] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 15:21:37,340 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 15:21:37,340 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-08-13 15:21:37,340 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [501454237] [2021-08-13 15:21:37,341 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-08-13 15:21:37,341 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 15:21:37,341 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-08-13 15:21:37,341 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2021-08-13 15:21:37,342 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 104 out of 124 [2021-08-13 15:21:37,343 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 181 places, 601 transitions, 5792 flow. Second operand has 9 states, 9 states have (on average 105.33333333333333) internal successors, (948), 9 states have internal predecessors, (948), 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) [2021-08-13 15:21:37,343 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 15:21:37,343 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 104 of 124 [2021-08-13 15:21:37,343 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 15:21:39,763 INFO L129 PetriNetUnfolder]: 6087/19445 cut-off events. [2021-08-13 15:21:39,763 INFO L130 PetriNetUnfolder]: For 14270/16960 co-relation queries the response was YES. [2021-08-13 15:21:39,860 INFO L84 FinitePrefix]: Finished finitePrefix Result has 56429 conditions, 19445 events. 6087/19445 cut-off events. For 14270/16960 co-relation queries the response was YES. Maximal size of possible extension queue 1428. Compared 258198 event pairs, 485 based on Foata normal form. 232/19444 useless extension candidates. Maximal degree in co-relation 56351. Up to 5242 conditions per place. [2021-08-13 15:21:39,878 INFO L132 encePairwiseOnDemand]: 113/124 looper letters, 22 selfloop transitions, 10 changer transitions 618/743 dead transitions. [2021-08-13 15:21:39,878 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 196 places, 743 transitions, 8648 flow [2021-08-13 15:21:39,878 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-08-13 15:21:39,878 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2021-08-13 15:21:39,880 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 1726 transitions. [2021-08-13 15:21:39,881 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.8699596774193549 [2021-08-13 15:21:39,881 INFO L72 ComplementDD]: Start complementDD. Operand 16 states and 1726 transitions. [2021-08-13 15:21:39,881 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 1726 transitions. [2021-08-13 15:21:39,882 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 15:21:39,882 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 16 states and 1726 transitions. [2021-08-13 15:21:39,884 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 17 states, 16 states have (on average 107.875) internal successors, (1726), 16 states have internal predecessors, (1726), 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) [2021-08-13 15:21:39,886 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 17 states, 17 states have (on average 124.0) internal successors, (2108), 17 states have internal predecessors, (2108), 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) [2021-08-13 15:21:39,887 INFO L81 ComplementDD]: Finished complementDD. Result has 17 states, 17 states have (on average 124.0) internal successors, (2108), 17 states have internal predecessors, (2108), 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) [2021-08-13 15:21:39,887 INFO L348 CegarLoopForPetriNet]: 131 programPoint places, 65 predicate places. [2021-08-13 15:21:39,887 INFO L482 AbstractCegarLoop]: Abstraction has has 196 places, 743 transitions, 8648 flow [2021-08-13 15:21:39,887 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 105.33333333333333) internal successors, (948), 9 states have internal predecessors, (948), 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) [2021-08-13 15:21:39,887 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 15:21:39,888 INFO L266 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, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-13 15:21:39,888 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-08-13 15:21:39,888 INFO L430 AbstractCegarLoop]: === Iteration 8 === [P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-08-13 15:21:39,888 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 15:21:39,888 INFO L82 PathProgramCache]: Analyzing trace with hash -1882402154, now seen corresponding path program 1 times [2021-08-13 15:21:39,888 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 15:21:39,888 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [538269677] [2021-08-13 15:21:39,888 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 15:21:39,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 15:21:39,943 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 15:21:39,943 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 15:21:39,944 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 15:21:39,944 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 15:21:39,946 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 15:21:39,946 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 15:21:39,952 INFO L142 QuantifierPusher]: treesize reduction 16, result has 83.5 percent of original size [2021-08-13 15:21:39,953 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 81 [2021-08-13 15:21:39,959 INFO L142 QuantifierPusher]: treesize reduction 16, result has 84.0 percent of original size [2021-08-13 15:21:39,960 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 84 [2021-08-13 15:21:39,976 INFO L142 QuantifierPusher]: treesize reduction 36, result has 65.4 percent of original size [2021-08-13 15:21:39,977 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 68 [2021-08-13 15:21:39,995 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-08-13 15:21:39,996 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-08-13 15:21:40,008 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 15:21:40,009 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-08-13 15:21:40,015 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 15:21:40,016 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-08-13 15:21:40,023 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 15:21:40,023 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 15:21:40,024 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-13 15:21:40,024 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 15:21:40,024 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [538269677] [2021-08-13 15:21:40,024 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [538269677] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 15:21:40,024 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 15:21:40,024 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-08-13 15:21:40,024 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [438675279] [2021-08-13 15:21:40,024 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-08-13 15:21:40,025 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 15:21:40,025 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-08-13 15:21:40,025 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-08-13 15:21:40,025 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 104 out of 124 [2021-08-13 15:21:40,026 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 196 places, 743 transitions, 8648 flow. Second operand has 9 states, 9 states have (on average 105.44444444444444) internal successors, (949), 9 states have internal predecessors, (949), 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) [2021-08-13 15:21:40,026 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 15:21:40,026 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 104 of 124 [2021-08-13 15:21:40,026 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 15:21:43,427 INFO L129 PetriNetUnfolder]: 7444/23834 cut-off events. [2021-08-13 15:21:43,428 INFO L130 PetriNetUnfolder]: For 21993/26210 co-relation queries the response was YES. [2021-08-13 15:21:43,537 INFO L84 FinitePrefix]: Finished finitePrefix Result has 77423 conditions, 23834 events. 7444/23834 cut-off events. For 21993/26210 co-relation queries the response was YES. Maximal size of possible extension queue 1782. Compared 327101 event pairs, 473 based on Foata normal form. 211/23783 useless extension candidates. Maximal degree in co-relation 77339. Up to 6048 conditions per place. [2021-08-13 15:21:43,557 INFO L132 encePairwiseOnDemand]: 113/124 looper letters, 25 selfloop transitions, 10 changer transitions 852/980 dead transitions. [2021-08-13 15:21:43,557 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 213 places, 980 transitions, 13502 flow [2021-08-13 15:21:43,557 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-08-13 15:21:43,557 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2021-08-13 15:21:43,560 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 1951 transitions. [2021-08-13 15:21:43,560 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.8741039426523297 [2021-08-13 15:21:43,560 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 1951 transitions. [2021-08-13 15:21:43,560 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 1951 transitions. [2021-08-13 15:21:43,561 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 15:21:43,561 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 1951 transitions. [2021-08-13 15:21:43,564 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 19 states, 18 states have (on average 108.38888888888889) internal successors, (1951), 18 states have internal predecessors, (1951), 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) [2021-08-13 15:21:43,567 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 19 states, 19 states have (on average 124.0) internal successors, (2356), 19 states have internal predecessors, (2356), 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) [2021-08-13 15:21:43,567 INFO L81 ComplementDD]: Finished complementDD. Result has 19 states, 19 states have (on average 124.0) internal successors, (2356), 19 states have internal predecessors, (2356), 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) [2021-08-13 15:21:43,567 INFO L348 CegarLoopForPetriNet]: 131 programPoint places, 82 predicate places. [2021-08-13 15:21:43,567 INFO L482 AbstractCegarLoop]: Abstraction has has 213 places, 980 transitions, 13502 flow [2021-08-13 15:21:43,568 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 105.44444444444444) internal successors, (949), 9 states have internal predecessors, (949), 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) [2021-08-13 15:21:43,568 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 15:21:43,568 INFO L266 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, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-13 15:21:43,568 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-08-13 15:21:43,568 INFO L430 AbstractCegarLoop]: === Iteration 9 === [P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-08-13 15:21:43,568 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 15:21:43,568 INFO L82 PathProgramCache]: Analyzing trace with hash 46693730, now seen corresponding path program 2 times [2021-08-13 15:21:43,568 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 15:21:43,568 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1180611220] [2021-08-13 15:21:43,569 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 15:21:43,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 15:21:43,628 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 15:21:43,628 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 15:21:43,629 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 15:21:43,629 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 15:21:43,631 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 15:21:43,631 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 15:21:43,635 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 15:21:43,636 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-08-13 15:21:43,641 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 15:21:43,642 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-08-13 15:21:43,650 INFO L142 QuantifierPusher]: treesize reduction 10, result has 81.5 percent of original size [2021-08-13 15:21:43,651 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-08-13 15:21:43,665 INFO L142 QuantifierPusher]: treesize reduction 36, result has 65.4 percent of original size [2021-08-13 15:21:43,666 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 68 [2021-08-13 15:21:43,686 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-08-13 15:21:43,687 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-08-13 15:21:43,700 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 15:21:43,700 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-08-13 15:21:43,707 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 15:21:43,707 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-08-13 15:21:43,714 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 15:21:43,716 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 15:21:43,716 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-13 15:21:43,717 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 15:21:43,717 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1180611220] [2021-08-13 15:21:43,717 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1180611220] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 15:21:43,717 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 15:21:43,717 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-08-13 15:21:43,717 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [239770585] [2021-08-13 15:21:43,717 INFO L462 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-08-13 15:21:43,717 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 15:21:43,718 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-08-13 15:21:43,718 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2021-08-13 15:21:43,718 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 104 out of 124 [2021-08-13 15:21:43,719 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 213 places, 980 transitions, 13502 flow. Second operand has 11 states, 11 states have (on average 105.18181818181819) internal successors, (1157), 11 states have internal predecessors, (1157), 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) [2021-08-13 15:21:43,719 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 15:21:43,719 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 104 of 124 [2021-08-13 15:21:43,719 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 15:21:44,467 WARN L205 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 21 [2021-08-13 15:21:47,898 INFO L129 PetriNetUnfolder]: 8341/27306 cut-off events. [2021-08-13 15:21:47,899 INFO L130 PetriNetUnfolder]: For 36368/43015 co-relation queries the response was YES. [2021-08-13 15:21:48,058 INFO L84 FinitePrefix]: Finished finitePrefix Result has 98398 conditions, 27306 events. 8341/27306 cut-off events. For 36368/43015 co-relation queries the response was YES. Maximal size of possible extension queue 2096. Compared 385599 event pairs, 474 based on Foata normal form. 378/27352 useless extension candidates. Maximal degree in co-relation 98308. Up to 7005 conditions per place. [2021-08-13 15:21:48,084 INFO L132 encePairwiseOnDemand]: 113/124 looper letters, 27 selfloop transitions, 11 changer transitions 1023/1154 dead transitions. [2021-08-13 15:21:48,084 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 228 places, 1154 transitions, 18230 flow [2021-08-13 15:21:48,084 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-08-13 15:21:48,084 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2021-08-13 15:21:48,086 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 1735 transitions. [2021-08-13 15:21:48,087 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.8744959677419355 [2021-08-13 15:21:48,087 INFO L72 ComplementDD]: Start complementDD. Operand 16 states and 1735 transitions. [2021-08-13 15:21:48,087 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 1735 transitions. [2021-08-13 15:21:48,088 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 15:21:48,088 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 16 states and 1735 transitions. [2021-08-13 15:21:48,091 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 17 states, 16 states have (on average 108.4375) internal successors, (1735), 16 states have internal predecessors, (1735), 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) [2021-08-13 15:21:48,093 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 17 states, 17 states have (on average 124.0) internal successors, (2108), 17 states have internal predecessors, (2108), 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) [2021-08-13 15:21:48,093 INFO L81 ComplementDD]: Finished complementDD. Result has 17 states, 17 states have (on average 124.0) internal successors, (2108), 17 states have internal predecessors, (2108), 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) [2021-08-13 15:21:48,094 INFO L348 CegarLoopForPetriNet]: 131 programPoint places, 97 predicate places. [2021-08-13 15:21:48,094 INFO L482 AbstractCegarLoop]: Abstraction has has 228 places, 1154 transitions, 18230 flow [2021-08-13 15:21:48,094 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 105.18181818181819) internal successors, (1157), 11 states have internal predecessors, (1157), 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) [2021-08-13 15:21:48,094 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 15:21:48,094 INFO L266 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, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-13 15:21:48,094 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-08-13 15:21:48,094 INFO L430 AbstractCegarLoop]: === Iteration 10 === [P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-08-13 15:21:48,094 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 15:21:48,095 INFO L82 PathProgramCache]: Analyzing trace with hash -1788607756, now seen corresponding path program 3 times [2021-08-13 15:21:48,095 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 15:21:48,095 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [492607942] [2021-08-13 15:21:48,095 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 15:21:48,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 15:21:48,140 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 15:21:48,141 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 15:21:48,141 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 15:21:48,141 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 15:21:48,143 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 15:21:48,144 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 15:21:48,149 INFO L142 QuantifierPusher]: treesize reduction 16, result has 83.5 percent of original size [2021-08-13 15:21:48,150 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 81 [2021-08-13 15:21:48,154 INFO L142 QuantifierPusher]: treesize reduction 14, result has 74.5 percent of original size [2021-08-13 15:21:48,154 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-08-13 15:21:48,164 INFO L142 QuantifierPusher]: treesize reduction 14, result has 75.9 percent of original size [2021-08-13 15:21:48,329 WARN L205 SmtUtils]: Spent 164.00 ms on a formula simplification that was a NOOP. DAG size: 22 [2021-08-13 15:21:48,330 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-08-13 15:21:48,344 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-08-13 15:21:48,345 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-08-13 15:21:48,367 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 15:21:48,368 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-08-13 15:21:48,376 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 15:21:48,376 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-08-13 15:21:48,385 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 15:21:48,385 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 15:21:48,385 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-13 15:21:48,385 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 15:21:48,386 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [492607942] [2021-08-13 15:21:48,386 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [492607942] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 15:21:48,386 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 15:21:48,386 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-08-13 15:21:48,386 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [262081538] [2021-08-13 15:21:48,386 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-08-13 15:21:48,386 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 15:21:48,386 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-08-13 15:21:48,386 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-08-13 15:21:48,387 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 104 out of 124 [2021-08-13 15:21:48,388 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 228 places, 1154 transitions, 18230 flow. Second operand has 9 states, 9 states have (on average 105.44444444444444) internal successors, (949), 9 states have internal predecessors, (949), 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) [2021-08-13 15:21:48,388 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 15:21:48,388 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 104 of 124 [2021-08-13 15:21:48,388 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 15:21:54,632 INFO L129 PetriNetUnfolder]: 9421/31293 cut-off events. [2021-08-13 15:21:54,632 INFO L130 PetriNetUnfolder]: For 46723/54546 co-relation queries the response was YES. [2021-08-13 15:21:54,817 INFO L84 FinitePrefix]: Finished finitePrefix Result has 123794 conditions, 31293 events. 9421/31293 cut-off events. For 46723/54546 co-relation queries the response was YES. Maximal size of possible extension queue 2422. Compared 453549 event pairs, 420 based on Foata normal form. 350/31337 useless extension candidates. Maximal degree in co-relation 123698. Up to 8286 conditions per place. [2021-08-13 15:21:54,870 INFO L132 encePairwiseOnDemand]: 113/124 looper letters, 32 selfloop transitions, 19 changer transitions 1425/1569 dead transitions. [2021-08-13 15:21:54,871 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 246 places, 1569 transitions, 28418 flow [2021-08-13 15:21:54,871 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-08-13 15:21:54,871 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2021-08-13 15:21:54,872 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 2055 transitions. [2021-08-13 15:21:54,873 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.8722410865874364 [2021-08-13 15:21:54,873 INFO L72 ComplementDD]: Start complementDD. Operand 19 states and 2055 transitions. [2021-08-13 15:21:54,873 INFO L73 IsDeterministic]: Start isDeterministic. Operand 19 states and 2055 transitions. [2021-08-13 15:21:54,874 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 15:21:54,874 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 19 states and 2055 transitions. [2021-08-13 15:21:54,876 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 20 states, 19 states have (on average 108.15789473684211) internal successors, (2055), 19 states have internal predecessors, (2055), 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) [2021-08-13 15:21:54,890 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 20 states, 20 states have (on average 124.0) internal successors, (2480), 20 states have internal predecessors, (2480), 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) [2021-08-13 15:21:54,901 INFO L81 ComplementDD]: Finished complementDD. Result has 20 states, 20 states have (on average 124.0) internal successors, (2480), 20 states have internal predecessors, (2480), 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) [2021-08-13 15:21:54,901 INFO L348 CegarLoopForPetriNet]: 131 programPoint places, 115 predicate places. [2021-08-13 15:21:54,901 INFO L482 AbstractCegarLoop]: Abstraction has has 246 places, 1569 transitions, 28418 flow [2021-08-13 15:21:54,902 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 105.44444444444444) internal successors, (949), 9 states have internal predecessors, (949), 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) [2021-08-13 15:21:54,902 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 15:21:54,902 INFO L266 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-13 15:21:54,902 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-08-13 15:21:54,902 INFO L430 AbstractCegarLoop]: === Iteration 11 === [P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-08-13 15:21:54,903 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 15:21:54,903 INFO L82 PathProgramCache]: Analyzing trace with hash -398783439, now seen corresponding path program 1 times [2021-08-13 15:21:54,904 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 15:21:54,904 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2096318588] [2021-08-13 15:21:54,904 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 15:21:54,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 15:21:55,294 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 15:21:55,308 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 15:21:55,309 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 15:21:55,309 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 15:21:55,311 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 15:21:55,312 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 15:21:55,316 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 15:21:55,316 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-08-13 15:21:55,322 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 15:21:55,323 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-08-13 15:21:55,331 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 15:21:55,331 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-08-13 15:21:55,353 INFO L142 QuantifierPusher]: treesize reduction 10, result has 83.3 percent of original size [2021-08-13 15:21:55,355 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-08-13 15:21:55,383 INFO L142 QuantifierPusher]: treesize reduction 10, result has 81.5 percent of original size [2021-08-13 15:21:55,395 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-08-13 15:21:55,412 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-08-13 15:21:55,412 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-08-13 15:21:55,438 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 15:21:55,438 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-08-13 15:21:55,446 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 15:21:55,446 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-08-13 15:21:55,454 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 15:21:55,454 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 15:21:55,454 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-13 15:21:55,455 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 15:21:55,455 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2096318588] [2021-08-13 15:21:55,455 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2096318588] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 15:21:55,455 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 15:21:55,455 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-08-13 15:21:55,455 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [349420020] [2021-08-13 15:21:55,455 INFO L462 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-08-13 15:21:55,455 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 15:21:55,456 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-08-13 15:21:55,456 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=97, Unknown=0, NotChecked=0, Total=132 [2021-08-13 15:21:55,457 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 101 out of 124 [2021-08-13 15:21:55,457 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 246 places, 1569 transitions, 28418 flow. Second operand has 12 states, 12 states have (on average 102.41666666666667) internal successors, (1229), 12 states have internal predecessors, (1229), 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) [2021-08-13 15:21:55,457 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 15:21:55,457 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 101 of 124 [2021-08-13 15:21:55,457 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 15:22:03,057 INFO L129 PetriNetUnfolder]: 9603/32630 cut-off events. [2021-08-13 15:22:03,057 INFO L130 PetriNetUnfolder]: For 61014/70482 co-relation queries the response was YES. [2021-08-13 15:22:03,252 INFO L84 FinitePrefix]: Finished finitePrefix Result has 139257 conditions, 32630 events. 9603/32630 cut-off events. For 61014/70482 co-relation queries the response was YES. Maximal size of possible extension queue 2566. Compared 481020 event pairs, 435 based on Foata normal form. 269/32589 useless extension candidates. Maximal degree in co-relation 139152. Up to 8872 conditions per place. [2021-08-13 15:22:03,278 INFO L132 encePairwiseOnDemand]: 112/124 looper letters, 44 selfloop transitions, 12 changer transitions 1554/1700 dead transitions. [2021-08-13 15:22:03,279 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 258 places, 1700 transitions, 34156 flow [2021-08-13 15:22:03,279 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-08-13 15:22:03,279 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2021-08-13 15:22:03,280 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1375 transitions. [2021-08-13 15:22:03,280 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.8529776674937966 [2021-08-13 15:22:03,280 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 1375 transitions. [2021-08-13 15:22:03,280 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 1375 transitions. [2021-08-13 15:22:03,281 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 15:22:03,281 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 1375 transitions. [2021-08-13 15:22:03,282 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 105.76923076923077) internal successors, (1375), 13 states have internal predecessors, (1375), 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) [2021-08-13 15:22:03,284 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 124.0) internal successors, (1736), 14 states have internal predecessors, (1736), 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) [2021-08-13 15:22:03,284 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 124.0) internal successors, (1736), 14 states have internal predecessors, (1736), 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) [2021-08-13 15:22:03,284 INFO L348 CegarLoopForPetriNet]: 131 programPoint places, 127 predicate places. [2021-08-13 15:22:03,284 INFO L482 AbstractCegarLoop]: Abstraction has has 258 places, 1700 transitions, 34156 flow [2021-08-13 15:22:03,284 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 12 states, 12 states have (on average 102.41666666666667) internal successors, (1229), 12 states have internal predecessors, (1229), 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) [2021-08-13 15:22:03,284 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 15:22:03,284 INFO L266 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-13 15:22:03,284 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-08-13 15:22:03,284 INFO L430 AbstractCegarLoop]: === Iteration 12 === [P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-08-13 15:22:03,285 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 15:22:03,285 INFO L82 PathProgramCache]: Analyzing trace with hash 630910577, now seen corresponding path program 2 times [2021-08-13 15:22:03,285 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 15:22:03,285 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1813609386] [2021-08-13 15:22:03,285 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 15:22:03,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 15:22:03,335 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 15:22:03,336 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 15:22:03,336 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 15:22:03,336 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 15:22:03,338 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 15:22:03,339 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 15:22:03,343 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 15:22:03,343 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-08-13 15:22:03,348 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 15:22:03,349 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-08-13 15:22:03,356 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 15:22:03,356 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-08-13 15:22:03,365 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 15:22:03,365 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-08-13 15:22:03,377 INFO L142 QuantifierPusher]: treesize reduction 10, result has 83.3 percent of original size [2021-08-13 15:22:03,377 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-08-13 15:22:03,396 INFO L142 QuantifierPusher]: treesize reduction 10, result has 83.3 percent of original size [2021-08-13 15:22:03,397 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-08-13 15:22:03,415 INFO L142 QuantifierPusher]: treesize reduction 20, result has 80.4 percent of original size [2021-08-13 15:22:03,416 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 82 [2021-08-13 15:22:03,436 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-08-13 15:22:03,436 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-08-13 15:22:03,449 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 15:22:03,449 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-08-13 15:22:03,456 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 15:22:03,457 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-08-13 15:22:03,464 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 15:22:03,465 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 15:22:03,465 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-13 15:22:03,465 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 15:22:03,465 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1813609386] [2021-08-13 15:22:03,465 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1813609386] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 15:22:03,465 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 15:22:03,465 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2021-08-13 15:22:03,465 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [177834073] [2021-08-13 15:22:03,466 INFO L462 AbstractCegarLoop]: Interpolant automaton has 14 states [2021-08-13 15:22:03,466 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 15:22:03,466 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-08-13 15:22:03,466 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=132, Unknown=0, NotChecked=0, Total=182 [2021-08-13 15:22:03,467 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 101 out of 124 [2021-08-13 15:22:03,468 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 258 places, 1700 transitions, 34156 flow. Second operand has 14 states, 14 states have (on average 102.21428571428571) internal successors, (1431), 14 states have internal predecessors, (1431), 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) [2021-08-13 15:22:03,468 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 15:22:03,468 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 101 of 124 [2021-08-13 15:22:03,468 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 15:22:11,134 INFO L129 PetriNetUnfolder]: 9896/33409 cut-off events. [2021-08-13 15:22:11,134 INFO L130 PetriNetUnfolder]: For 74643/86636 co-relation queries the response was YES. [2021-08-13 15:22:11,308 INFO L84 FinitePrefix]: Finished finitePrefix Result has 154064 conditions, 33409 events. 9896/33409 cut-off events. For 74643/86636 co-relation queries the response was YES. Maximal size of possible extension queue 2617. Compared 492483 event pairs, 448 based on Foata normal form. 363/33467 useless extension candidates. Maximal degree in co-relation 153950. Up to 9129 conditions per place. [2021-08-13 15:22:11,337 INFO L132 encePairwiseOnDemand]: 112/124 looper letters, 42 selfloop transitions, 15 changer transitions 1680/1827 dead transitions. [2021-08-13 15:22:11,338 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 275 places, 1827 transitions, 40338 flow [2021-08-13 15:22:11,338 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-08-13 15:22:11,338 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2021-08-13 15:22:11,339 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 1889 transitions. [2021-08-13 15:22:11,340 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.8463261648745519 [2021-08-13 15:22:11,340 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 1889 transitions. [2021-08-13 15:22:11,340 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 1889 transitions. [2021-08-13 15:22:11,341 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 15:22:11,341 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 1889 transitions. [2021-08-13 15:22:11,343 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 19 states, 18 states have (on average 104.94444444444444) internal successors, (1889), 18 states have internal predecessors, (1889), 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) [2021-08-13 15:22:11,344 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 19 states, 19 states have (on average 124.0) internal successors, (2356), 19 states have internal predecessors, (2356), 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) [2021-08-13 15:22:11,345 INFO L81 ComplementDD]: Finished complementDD. Result has 19 states, 19 states have (on average 124.0) internal successors, (2356), 19 states have internal predecessors, (2356), 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) [2021-08-13 15:22:11,345 INFO L348 CegarLoopForPetriNet]: 131 programPoint places, 144 predicate places. [2021-08-13 15:22:11,345 INFO L482 AbstractCegarLoop]: Abstraction has has 275 places, 1827 transitions, 40338 flow [2021-08-13 15:22:11,345 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 14 states, 14 states have (on average 102.21428571428571) internal successors, (1431), 14 states have internal predecessors, (1431), 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) [2021-08-13 15:22:11,345 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 15:22:11,345 INFO L266 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-13 15:22:11,346 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-08-13 15:22:11,346 INFO L430 AbstractCegarLoop]: === Iteration 13 === [P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-08-13 15:22:11,346 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 15:22:11,346 INFO L82 PathProgramCache]: Analyzing trace with hash 759185187, now seen corresponding path program 1 times [2021-08-13 15:22:11,346 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 15:22:11,346 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1521178499] [2021-08-13 15:22:11,346 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 15:22:11,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 15:22:11,381 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 15:22:11,381 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 15:22:11,381 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 15:22:11,382 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 15:22:11,384 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.8 percent of original size [2021-08-13 15:22:11,384 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-08-13 15:22:11,395 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 15:22:11,395 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 15:22:11,400 INFO L142 QuantifierPusher]: treesize reduction 11, result has 45.0 percent of original size [2021-08-13 15:22:11,400 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-08-13 15:22:11,406 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 15:22:11,406 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 15:22:11,406 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-13 15:22:11,406 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 15:22:11,407 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1521178499] [2021-08-13 15:22:11,407 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1521178499] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 15:22:11,407 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 15:22:11,407 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-08-13 15:22:11,407 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [543121065] [2021-08-13 15:22:11,407 INFO L462 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-08-13 15:22:11,407 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 15:22:11,407 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-08-13 15:22:11,407 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-08-13 15:22:11,408 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 109 out of 124 [2021-08-13 15:22:11,408 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 275 places, 1827 transitions, 40338 flow. Second operand has 6 states, 6 states have (on average 110.16666666666667) internal successors, (661), 6 states have internal predecessors, (661), 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) [2021-08-13 15:22:11,408 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 15:22:11,408 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 109 of 124 [2021-08-13 15:22:11,408 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 15:22:22,160 INFO L129 PetriNetUnfolder]: 11019/39260 cut-off events. [2021-08-13 15:22:22,161 INFO L130 PetriNetUnfolder]: For 69443/78991 co-relation queries the response was YES. [2021-08-13 15:22:22,418 INFO L84 FinitePrefix]: Finished finitePrefix Result has 171642 conditions, 39260 events. 11019/39260 cut-off events. For 69443/78991 co-relation queries the response was YES. Maximal size of possible extension queue 3013. Compared 601898 event pairs, 1391 based on Foata normal form. 7/37589 useless extension candidates. Maximal degree in co-relation 171525. Up to 10075 conditions per place. [2021-08-13 15:22:22,533 INFO L132 encePairwiseOnDemand]: 113/124 looper letters, 29 selfloop transitions, 20 changer transitions 392/1285 dead transitions. [2021-08-13 15:22:22,533 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 284 places, 1285 transitions, 26592 flow [2021-08-13 15:22:22,533 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-08-13 15:22:22,534 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-08-13 15:22:22,534 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 1141 transitions. [2021-08-13 15:22:22,535 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.9201612903225806 [2021-08-13 15:22:22,535 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 1141 transitions. [2021-08-13 15:22:22,535 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 1141 transitions. [2021-08-13 15:22:22,535 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 15:22:22,535 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 1141 transitions. [2021-08-13 15:22:22,536 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 114.1) internal successors, (1141), 10 states have internal predecessors, (1141), 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) [2021-08-13 15:22:22,537 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 124.0) internal successors, (1364), 11 states have internal predecessors, (1364), 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) [2021-08-13 15:22:22,538 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 124.0) internal successors, (1364), 11 states have internal predecessors, (1364), 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) [2021-08-13 15:22:22,538 INFO L348 CegarLoopForPetriNet]: 131 programPoint places, 153 predicate places. [2021-08-13 15:22:22,538 INFO L482 AbstractCegarLoop]: Abstraction has has 284 places, 1285 transitions, 26592 flow [2021-08-13 15:22:22,538 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 110.16666666666667) internal successors, (661), 6 states have internal predecessors, (661), 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) [2021-08-13 15:22:22,538 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 15:22:22,538 INFO L266 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-13 15:22:22,538 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-08-13 15:22:22,538 INFO L430 AbstractCegarLoop]: === Iteration 14 === [P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-08-13 15:22:22,538 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 15:22:22,538 INFO L82 PathProgramCache]: Analyzing trace with hash -621381337, now seen corresponding path program 1 times [2021-08-13 15:22:22,538 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 15:22:22,539 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [730376691] [2021-08-13 15:22:22,539 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 15:22:22,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 15:22:22,602 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 15:22:22,602 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 15:22:22,602 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 15:22:22,603 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 15:22:22,605 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 15:22:22,605 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 15:22:22,609 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 15:22:22,609 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-08-13 15:22:22,616 INFO L142 QuantifierPusher]: treesize reduction 10, result has 82.5 percent of original size [2021-08-13 15:22:22,617 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-08-13 15:22:22,632 INFO L142 QuantifierPusher]: treesize reduction 10, result has 83.3 percent of original size [2021-08-13 15:22:22,632 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-08-13 15:22:22,650 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 15:22:22,650 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-08-13 15:22:22,658 INFO L142 QuantifierPusher]: treesize reduction 6, result has 91.0 percent of original size [2021-08-13 15:22:22,660 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-08-13 15:22:22,666 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-08-13 15:22:22,666 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-08-13 15:22:22,680 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 15:22:22,680 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-08-13 15:22:22,687 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 15:22:22,687 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-08-13 15:22:22,695 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 15:22:22,695 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 15:22:22,695 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-13 15:22:22,695 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 15:22:22,695 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [730376691] [2021-08-13 15:22:22,696 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [730376691] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 15:22:22,696 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 15:22:22,696 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-08-13 15:22:22,696 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [210836183] [2021-08-13 15:22:22,696 INFO L462 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-08-13 15:22:22,696 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 15:22:22,696 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-08-13 15:22:22,697 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2021-08-13 15:22:22,697 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 102 out of 124 [2021-08-13 15:22:22,698 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 284 places, 1285 transitions, 26592 flow. Second operand has 11 states, 11 states have (on average 103.45454545454545) internal successors, (1138), 11 states have internal predecessors, (1138), 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) [2021-08-13 15:22:22,698 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 15:22:22,698 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 102 of 124 [2021-08-13 15:22:22,698 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 15:22:33,655 INFO L129 PetriNetUnfolder]: 12711/46295 cut-off events. [2021-08-13 15:22:33,655 INFO L130 PetriNetUnfolder]: For 94057/110005 co-relation queries the response was YES. [2021-08-13 15:22:33,983 INFO L84 FinitePrefix]: Finished finitePrefix Result has 205761 conditions, 46295 events. 12711/46295 cut-off events. For 94057/110005 co-relation queries the response was YES. Maximal size of possible extension queue 3585. Compared 733924 event pairs, 1698 based on Foata normal form. 286/44367 useless extension candidates. Maximal degree in co-relation 205636. Up to 11058 conditions per place. [2021-08-13 15:22:34,112 INFO L132 encePairwiseOnDemand]: 114/124 looper letters, 708 selfloop transitions, 108 changer transitions 468/1450 dead transitions. [2021-08-13 15:22:34,112 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 296 places, 1450 transitions, 33110 flow [2021-08-13 15:22:34,112 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-08-13 15:22:34,112 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2021-08-13 15:22:34,113 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1380 transitions. [2021-08-13 15:22:34,114 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.8560794044665012 [2021-08-13 15:22:34,114 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 1380 transitions. [2021-08-13 15:22:34,114 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 1380 transitions. [2021-08-13 15:22:34,114 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 15:22:34,114 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 1380 transitions. [2021-08-13 15:22:34,116 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 106.15384615384616) internal successors, (1380), 13 states have internal predecessors, (1380), 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) [2021-08-13 15:22:34,117 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 124.0) internal successors, (1736), 14 states have internal predecessors, (1736), 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) [2021-08-13 15:22:34,117 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 124.0) internal successors, (1736), 14 states have internal predecessors, (1736), 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) [2021-08-13 15:22:34,117 INFO L348 CegarLoopForPetriNet]: 131 programPoint places, 165 predicate places. [2021-08-13 15:22:34,117 INFO L482 AbstractCegarLoop]: Abstraction has has 296 places, 1450 transitions, 33110 flow [2021-08-13 15:22:34,117 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 103.45454545454545) internal successors, (1138), 11 states have internal predecessors, (1138), 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) [2021-08-13 15:22:34,117 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 15:22:34,117 INFO L266 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-13 15:22:34,118 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-08-13 15:22:34,118 INFO L430 AbstractCegarLoop]: === Iteration 15 === [P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-08-13 15:22:34,118 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 15:22:34,118 INFO L82 PathProgramCache]: Analyzing trace with hash -558337767, now seen corresponding path program 1 times [2021-08-13 15:22:34,118 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 15:22:34,118 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [816024120] [2021-08-13 15:22:34,118 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 15:22:34,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 15:22:34,152 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 15:22:34,152 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 15:22:34,153 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 15:22:34,153 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 15:22:34,156 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 15:22:34,157 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 15:22:34,163 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.8 percent of original size [2021-08-13 15:22:34,163 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-08-13 15:22:34,175 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 15:22:34,175 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 15:22:34,181 INFO L142 QuantifierPusher]: treesize reduction 11, result has 45.0 percent of original size [2021-08-13 15:22:34,182 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-08-13 15:22:34,188 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 15:22:34,188 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 15:22:34,189 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-13 15:22:34,189 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 15:22:34,189 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [816024120] [2021-08-13 15:22:34,189 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [816024120] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 15:22:34,189 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 15:22:34,189 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-08-13 15:22:34,189 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1514221327] [2021-08-13 15:22:34,189 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-08-13 15:22:34,189 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 15:22:34,189 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-08-13 15:22:34,190 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-08-13 15:22:34,190 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 109 out of 124 [2021-08-13 15:22:34,191 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 296 places, 1450 transitions, 33110 flow. Second operand has 7 states, 7 states have (on average 110.14285714285714) internal successors, (771), 7 states have internal predecessors, (771), 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) [2021-08-13 15:22:34,191 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 15:22:34,191 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 109 of 124 [2021-08-13 15:22:34,191 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 15:22:39,032 INFO L129 PetriNetUnfolder]: 4582/15512 cut-off events. [2021-08-13 15:22:39,032 INFO L130 PetriNetUnfolder]: For 25792/41816 co-relation queries the response was YES. [2021-08-13 15:22:39,118 INFO L84 FinitePrefix]: Finished finitePrefix Result has 67716 conditions, 15512 events. 4582/15512 cut-off events. For 25792/41816 co-relation queries the response was YES. Maximal size of possible extension queue 939. Compared 199449 event pairs, 231 based on Foata normal form. 586/15090 useless extension candidates. Maximal degree in co-relation 67588. Up to 3270 conditions per place. [2021-08-13 15:22:39,151 INFO L132 encePairwiseOnDemand]: 113/124 looper letters, 52 selfloop transitions, 54 changer transitions 668/1039 dead transitions. [2021-08-13 15:22:39,151 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 308 places, 1039 transitions, 21366 flow [2021-08-13 15:22:39,151 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-08-13 15:22:39,151 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2021-08-13 15:22:39,152 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1485 transitions. [2021-08-13 15:22:39,153 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.9212158808933002 [2021-08-13 15:22:39,153 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 1485 transitions. [2021-08-13 15:22:39,153 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 1485 transitions. [2021-08-13 15:22:39,153 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 15:22:39,153 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 1485 transitions. [2021-08-13 15:22:39,155 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 114.23076923076923) internal successors, (1485), 13 states have internal predecessors, (1485), 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) [2021-08-13 15:22:39,156 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 124.0) internal successors, (1736), 14 states have internal predecessors, (1736), 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) [2021-08-13 15:22:39,156 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 124.0) internal successors, (1736), 14 states have internal predecessors, (1736), 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) [2021-08-13 15:22:39,156 INFO L348 CegarLoopForPetriNet]: 131 programPoint places, 177 predicate places. [2021-08-13 15:22:39,156 INFO L482 AbstractCegarLoop]: Abstraction has has 308 places, 1039 transitions, 21366 flow [2021-08-13 15:22:39,157 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 110.14285714285714) internal successors, (771), 7 states have internal predecessors, (771), 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) [2021-08-13 15:22:39,157 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 15:22:39,157 INFO L266 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-13 15:22:39,157 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-08-13 15:22:39,157 INFO L430 AbstractCegarLoop]: === Iteration 16 === [P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-08-13 15:22:39,157 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 15:22:39,157 INFO L82 PathProgramCache]: Analyzing trace with hash 799846670, now seen corresponding path program 1 times [2021-08-13 15:22:39,157 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 15:22:39,157 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [125093173] [2021-08-13 15:22:39,157 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 15:22:39,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 15:22:39,191 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 15:22:39,192 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 15:22:39,192 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 15:22:39,192 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 15:22:39,195 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-08-13 15:22:39,196 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-08-13 15:22:39,207 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 15:22:39,207 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-08-13 15:22:39,213 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 15:22:39,214 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-08-13 15:22:39,220 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 15:22:39,220 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 15:22:39,220 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-13 15:22:39,220 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 15:22:39,221 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [125093173] [2021-08-13 15:22:39,222 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [125093173] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 15:22:39,222 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 15:22:39,222 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-08-13 15:22:39,222 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1292560984] [2021-08-13 15:22:39,223 INFO L462 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-08-13 15:22:39,223 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 15:22:39,223 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-08-13 15:22:39,223 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-08-13 15:22:39,224 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 111 out of 124 [2021-08-13 15:22:39,224 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 308 places, 1039 transitions, 21366 flow. Second operand has 6 states, 6 states have (on average 112.33333333333333) internal successors, (674), 6 states have internal predecessors, (674), 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) [2021-08-13 15:22:39,224 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 15:22:39,224 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 111 of 124 [2021-08-13 15:22:39,224 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 15:22:45,873 INFO L129 PetriNetUnfolder]: 7778/28760 cut-off events. [2021-08-13 15:22:45,874 INFO L130 PetriNetUnfolder]: For 70581/85459 co-relation queries the response was YES. [2021-08-13 15:22:46,113 INFO L84 FinitePrefix]: Finished finitePrefix Result has 132151 conditions, 28760 events. 7778/28760 cut-off events. For 70581/85459 co-relation queries the response was YES. Maximal size of possible extension queue 1975. Compared 421000 event pairs, 338 based on Foata normal form. 38/27118 useless extension candidates. Maximal degree in co-relation 132020. Up to 6349 conditions per place. [2021-08-13 15:22:46,166 INFO L132 encePairwiseOnDemand]: 118/124 looper letters, 161 selfloop transitions, 36 changer transitions 1459/1907 dead transitions. [2021-08-13 15:22:46,166 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 316 places, 1907 transitions, 46908 flow [2021-08-13 15:22:46,167 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-08-13 15:22:46,167 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-08-13 15:22:46,167 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1029 transitions. [2021-08-13 15:22:46,168 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.9220430107526881 [2021-08-13 15:22:46,168 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 1029 transitions. [2021-08-13 15:22:46,168 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 1029 transitions. [2021-08-13 15:22:46,168 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 15:22:46,168 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 1029 transitions. [2021-08-13 15:22:46,170 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 114.33333333333333) internal successors, (1029), 9 states have internal predecessors, (1029), 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) [2021-08-13 15:22:46,171 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 124.0) internal successors, (1240), 10 states have internal predecessors, (1240), 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) [2021-08-13 15:22:46,171 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 124.0) internal successors, (1240), 10 states have internal predecessors, (1240), 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) [2021-08-13 15:22:46,171 INFO L348 CegarLoopForPetriNet]: 131 programPoint places, 185 predicate places. [2021-08-13 15:22:46,171 INFO L482 AbstractCegarLoop]: Abstraction has has 316 places, 1907 transitions, 46908 flow [2021-08-13 15:22:46,172 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 112.33333333333333) internal successors, (674), 6 states have internal predecessors, (674), 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) [2021-08-13 15:22:46,172 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 15:22:46,172 INFO L266 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-13 15:22:46,172 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-08-13 15:22:46,172 INFO L430 AbstractCegarLoop]: === Iteration 17 === [P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-08-13 15:22:46,172 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 15:22:46,172 INFO L82 PathProgramCache]: Analyzing trace with hash -603304144, now seen corresponding path program 1 times [2021-08-13 15:22:46,173 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 15:22:46,173 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [690130998] [2021-08-13 15:22:46,173 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 15:22:46,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 15:22:46,219 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 15:22:46,220 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 15:22:46,220 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 15:22:46,220 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 15:22:46,223 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 15:22:46,223 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 15:22:46,226 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 15:22:46,226 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 15:22:46,231 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.8 percent of original size [2021-08-13 15:22:46,231 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-08-13 15:22:46,244 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 15:22:46,244 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 15:22:46,252 INFO L142 QuantifierPusher]: treesize reduction 11, result has 45.0 percent of original size [2021-08-13 15:22:46,253 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-08-13 15:22:46,261 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 15:22:46,262 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 15:22:46,262 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-13 15:22:46,262 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 15:22:46,262 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [690130998] [2021-08-13 15:22:46,262 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [690130998] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 15:22:46,262 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 15:22:46,262 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-08-13 15:22:46,262 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1940796033] [2021-08-13 15:22:46,263 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-08-13 15:22:46,263 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 15:22:46,263 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-08-13 15:22:46,264 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-08-13 15:22:46,264 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 109 out of 124 [2021-08-13 15:22:46,265 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 316 places, 1907 transitions, 46908 flow. Second operand has 8 states, 8 states have (on average 110.125) internal successors, (881), 8 states have internal predecessors, (881), 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) [2021-08-13 15:22:46,265 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 15:22:46,265 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 109 of 124 [2021-08-13 15:22:46,265 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 15:22:52,137 INFO L129 PetriNetUnfolder]: 4197/10317 cut-off events. [2021-08-13 15:22:52,137 INFO L130 PetriNetUnfolder]: For 10832/44702 co-relation queries the response was YES. [2021-08-13 15:22:52,187 INFO L84 FinitePrefix]: Finished finitePrefix Result has 41537 conditions, 10317 events. 4197/10317 cut-off events. For 10832/44702 co-relation queries the response was YES. Maximal size of possible extension queue 1288. Compared 108982 event pairs, 0 based on Foata normal form. 1155/10277 useless extension candidates. Maximal degree in co-relation 41403. Up to 3230 conditions per place. [2021-08-13 15:22:52,210 INFO L132 encePairwiseOnDemand]: 113/124 looper letters, 33 selfloop transitions, 106 changer transitions 372/651 dead transitions. [2021-08-13 15:22:52,210 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 283 places, 651 transitions, 11884 flow [2021-08-13 15:22:52,216 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-08-13 15:22:52,216 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2021-08-13 15:22:52,217 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 1829 transitions. [2021-08-13 15:22:52,218 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.921875 [2021-08-13 15:22:52,218 INFO L72 ComplementDD]: Start complementDD. Operand 16 states and 1829 transitions. [2021-08-13 15:22:52,218 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 1829 transitions. [2021-08-13 15:22:52,218 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 15:22:52,218 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 16 states and 1829 transitions. [2021-08-13 15:22:52,220 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 17 states, 16 states have (on average 114.3125) internal successors, (1829), 16 states have internal predecessors, (1829), 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) [2021-08-13 15:22:52,221 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 17 states, 17 states have (on average 124.0) internal successors, (2108), 17 states have internal predecessors, (2108), 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) [2021-08-13 15:22:52,222 INFO L81 ComplementDD]: Finished complementDD. Result has 17 states, 17 states have (on average 124.0) internal successors, (2108), 17 states have internal predecessors, (2108), 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) [2021-08-13 15:22:52,222 INFO L348 CegarLoopForPetriNet]: 131 programPoint places, 152 predicate places. [2021-08-13 15:22:52,222 INFO L482 AbstractCegarLoop]: Abstraction has has 283 places, 651 transitions, 11884 flow [2021-08-13 15:22:52,222 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 110.125) internal successors, (881), 8 states have internal predecessors, (881), 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) [2021-08-13 15:22:52,222 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 15:22:52,222 INFO L266 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-13 15:22:52,222 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-08-13 15:22:52,222 INFO L430 AbstractCegarLoop]: === Iteration 18 === [P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-08-13 15:22:52,223 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 15:22:52,223 INFO L82 PathProgramCache]: Analyzing trace with hash -1953828437, now seen corresponding path program 1 times [2021-08-13 15:22:52,223 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 15:22:52,223 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1530046049] [2021-08-13 15:22:52,223 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 15:22:52,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 15:22:52,264 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 15:22:52,264 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 15:22:52,264 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 15:22:52,265 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 15:22:52,267 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 15:22:52,267 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 15:22:52,269 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 15:22:52,270 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 15:22:52,273 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 15:22:52,273 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 15:22:52,279 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.8 percent of original size [2021-08-13 15:22:52,280 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-08-13 15:22:52,292 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 15:22:52,292 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 15:22:52,299 INFO L142 QuantifierPusher]: treesize reduction 11, result has 45.0 percent of original size [2021-08-13 15:22:52,299 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-08-13 15:22:52,306 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 15:22:52,307 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 15:22:52,308 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-13 15:22:52,308 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 15:22:52,308 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1530046049] [2021-08-13 15:22:52,308 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1530046049] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 15:22:52,308 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 15:22:52,308 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-08-13 15:22:52,308 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [901179371] [2021-08-13 15:22:52,308 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-08-13 15:22:52,308 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 15:22:52,309 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-08-13 15:22:52,309 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2021-08-13 15:22:52,310 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 109 out of 124 [2021-08-13 15:22:52,311 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 283 places, 651 transitions, 11884 flow. Second operand has 9 states, 9 states have (on average 110.11111111111111) internal successors, (991), 9 states have internal predecessors, (991), 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) [2021-08-13 15:22:52,311 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 15:22:52,311 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 109 of 124 [2021-08-13 15:22:52,311 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 15:22:54,203 INFO L129 PetriNetUnfolder]: 3896/8041 cut-off events. [2021-08-13 15:22:54,203 INFO L130 PetriNetUnfolder]: For 5135/47741 co-relation queries the response was YES. [2021-08-13 15:22:54,234 INFO L84 FinitePrefix]: Finished finitePrefix Result has 34558 conditions, 8041 events. 3896/8041 cut-off events. For 5135/47741 co-relation queries the response was YES. Maximal size of possible extension queue 1288. Compared 79971 event pairs, 0 based on Foata normal form. 1314/8216 useless extension candidates. Maximal degree in co-relation 34421. Up to 3053 conditions per place. [2021-08-13 15:22:54,251 INFO L132 encePairwiseOnDemand]: 113/124 looper letters, 28 selfloop transitions, 111 changer transitions 121/368 dead transitions. [2021-08-13 15:22:54,251 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 256 places, 368 transitions, 4036 flow [2021-08-13 15:22:54,251 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-08-13 15:22:54,252 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2021-08-13 15:22:54,253 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 2153 transitions. [2021-08-13 15:22:54,256 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.9138370118845501 [2021-08-13 15:22:54,256 INFO L72 ComplementDD]: Start complementDD. Operand 19 states and 2153 transitions. [2021-08-13 15:22:54,257 INFO L73 IsDeterministic]: Start isDeterministic. Operand 19 states and 2153 transitions. [2021-08-13 15:22:54,257 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 15:22:54,257 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 19 states and 2153 transitions. [2021-08-13 15:22:54,272 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 20 states, 19 states have (on average 113.3157894736842) internal successors, (2153), 19 states have internal predecessors, (2153), 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) [2021-08-13 15:22:54,274 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 20 states, 20 states have (on average 124.0) internal successors, (2480), 20 states have internal predecessors, (2480), 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) [2021-08-13 15:22:54,274 INFO L81 ComplementDD]: Finished complementDD. Result has 20 states, 20 states have (on average 124.0) internal successors, (2480), 20 states have internal predecessors, (2480), 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) [2021-08-13 15:22:54,274 INFO L348 CegarLoopForPetriNet]: 131 programPoint places, 125 predicate places. [2021-08-13 15:22:54,275 INFO L482 AbstractCegarLoop]: Abstraction has has 256 places, 368 transitions, 4036 flow [2021-08-13 15:22:54,275 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 110.11111111111111) internal successors, (991), 9 states have internal predecessors, (991), 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) [2021-08-13 15:22:54,275 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 15:22:54,275 INFO L266 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-13 15:22:54,275 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2021-08-13 15:22:54,275 INFO L430 AbstractCegarLoop]: === Iteration 19 === [P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-08-13 15:22:54,275 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 15:22:54,275 INFO L82 PathProgramCache]: Analyzing trace with hash 2087237757, now seen corresponding path program 1 times [2021-08-13 15:22:54,275 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 15:22:54,275 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [284134503] [2021-08-13 15:22:54,276 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 15:22:54,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 15:22:54,390 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 15:22:54,390 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 15:22:54,391 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 15:22:54,391 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 15:22:54,393 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 15:22:54,393 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 15:22:54,396 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-08-13 15:22:54,396 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-08-13 15:22:54,407 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 15:22:54,407 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-08-13 15:22:54,415 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 15:22:54,415 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-08-13 15:22:54,421 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 15:22:54,422 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 15:22:54,423 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-13 15:22:54,423 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 15:22:54,423 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [284134503] [2021-08-13 15:22:54,423 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [284134503] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 15:22:54,424 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 15:22:54,424 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-08-13 15:22:54,424 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1696043999] [2021-08-13 15:22:54,424 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-08-13 15:22:54,425 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 15:22:54,425 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-08-13 15:22:54,425 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-08-13 15:22:54,425 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 110 out of 124 [2021-08-13 15:22:54,426 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 256 places, 368 transitions, 4036 flow. Second operand has 7 states, 7 states have (on average 111.42857142857143) internal successors, (780), 7 states have internal predecessors, (780), 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) [2021-08-13 15:22:54,426 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 15:22:54,426 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 110 of 124 [2021-08-13 15:22:54,426 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 15:22:56,247 INFO L129 PetriNetUnfolder]: 7617/16238 cut-off events. [2021-08-13 15:22:56,247 INFO L130 PetriNetUnfolder]: For 10081/39559 co-relation queries the response was YES. [2021-08-13 15:22:56,492 INFO L84 FinitePrefix]: Finished finitePrefix Result has 67826 conditions, 16238 events. 7617/16238 cut-off events. For 10081/39559 co-relation queries the response was YES. Maximal size of possible extension queue 2514. Compared 185250 event pairs, 0 based on Foata normal form. 29/14217 useless extension candidates. Maximal degree in co-relation 67685. Up to 5969 conditions per place. [2021-08-13 15:22:56,507 INFO L132 encePairwiseOnDemand]: 118/124 looper letters, 9 selfloop transitions, 1 changer transitions 190/409 dead transitions. [2021-08-13 15:22:56,507 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 262 places, 409 transitions, 5348 flow [2021-08-13 15:22:56,508 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-08-13 15:22:56,508 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-08-13 15:22:56,508 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 788 transitions. [2021-08-13 15:22:56,509 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.9078341013824884 [2021-08-13 15:22:56,509 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 788 transitions. [2021-08-13 15:22:56,509 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 788 transitions. [2021-08-13 15:22:56,509 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 15:22:56,509 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 788 transitions. [2021-08-13 15:22:56,510 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 112.57142857142857) internal successors, (788), 7 states have internal predecessors, (788), 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) [2021-08-13 15:22:56,511 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 124.0) internal successors, (992), 8 states have internal predecessors, (992), 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) [2021-08-13 15:22:56,511 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 124.0) internal successors, (992), 8 states have internal predecessors, (992), 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) [2021-08-13 15:22:56,511 INFO L348 CegarLoopForPetriNet]: 131 programPoint places, 131 predicate places. [2021-08-13 15:22:56,511 INFO L482 AbstractCegarLoop]: Abstraction has has 262 places, 409 transitions, 5348 flow [2021-08-13 15:22:56,512 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 111.42857142857143) internal successors, (780), 7 states have internal predecessors, (780), 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) [2021-08-13 15:22:56,512 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 15:22:56,512 INFO L266 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-13 15:22:56,512 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2021-08-13 15:22:56,512 INFO L430 AbstractCegarLoop]: === Iteration 20 === [P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-08-13 15:22:56,512 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 15:22:56,512 INFO L82 PathProgramCache]: Analyzing trace with hash 1029986431, now seen corresponding path program 2 times [2021-08-13 15:22:56,513 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 15:22:56,513 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [479201597] [2021-08-13 15:22:56,513 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 15:22:56,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-13 15:22:56,543 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-13 15:22:56,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-13 15:22:56,578 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-13 15:22:56,621 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-13 15:22:56,621 INFO L651 BasicCegarLoop]: Counterexample might be feasible [2021-08-13 15:22:56,621 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2021-08-13 15:22:56,624 INFO L239 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-08-13 15:22:56,753 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.08 03:22:56 BasicIcfg [2021-08-13 15:22:56,754 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-08-13 15:22:56,755 INFO L168 Benchmark]: Toolchain (without parser) took 88716.17 ms. Allocated memory was 127.9 MB in the beginning and 6.9 GB in the end (delta: 6.7 GB). Free memory was 91.1 MB in the beginning and 5.5 GB in the end (delta: -5.4 GB). Peak memory consumption was 1.3 GB. Max. memory is 8.0 GB. [2021-08-13 15:22:56,755 INFO L168 Benchmark]: CDTParser took 0.10 ms. Allocated memory is still 127.9 MB. Free memory was 109.4 MB in the beginning and 109.3 MB in the end (delta: 78.9 kB). There was no memory consumed. Max. memory is 8.0 GB. [2021-08-13 15:22:56,756 INFO L168 Benchmark]: CACSL2BoogieTranslator took 560.42 ms. Allocated memory was 127.9 MB in the beginning and 178.3 MB in the end (delta: 50.3 MB). Free memory was 90.8 MB in the beginning and 136.7 MB in the end (delta: -45.9 MB). Peak memory consumption was 6.1 MB. Max. memory is 8.0 GB. [2021-08-13 15:22:56,756 INFO L168 Benchmark]: Boogie Procedure Inliner took 64.71 ms. Allocated memory is still 178.3 MB. Free memory was 136.7 MB in the beginning and 133.6 MB in the end (delta: 3.1 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. [2021-08-13 15:22:56,756 INFO L168 Benchmark]: Boogie Preprocessor took 47.69 ms. Allocated memory is still 178.3 MB. Free memory was 133.6 MB in the beginning and 131.5 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2021-08-13 15:22:56,756 INFO L168 Benchmark]: RCFGBuilder took 1327.63 ms. Allocated memory was 178.3 MB in the beginning and 220.2 MB in the end (delta: 41.9 MB). Free memory was 131.5 MB in the beginning and 125.4 MB in the end (delta: 6.2 MB). Peak memory consumption was 70.1 MB. Max. memory is 8.0 GB. [2021-08-13 15:22:56,756 INFO L168 Benchmark]: TraceAbstraction took 86709.90 ms. Allocated memory was 220.2 MB in the beginning and 6.9 GB in the end (delta: 6.7 GB). Free memory was 124.8 MB in the beginning and 5.5 GB in the end (delta: -5.4 GB). Peak memory consumption was 1.3 GB. Max. memory is 8.0 GB. [2021-08-13 15:22:56,760 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10 ms. Allocated memory is still 127.9 MB. Free memory was 109.4 MB in the beginning and 109.3 MB in the end (delta: 78.9 kB). There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 560.42 ms. Allocated memory was 127.9 MB in the beginning and 178.3 MB in the end (delta: 50.3 MB). Free memory was 90.8 MB in the beginning and 136.7 MB in the end (delta: -45.9 MB). Peak memory consumption was 6.1 MB. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 64.71 ms. Allocated memory is still 178.3 MB. Free memory was 136.7 MB in the beginning and 133.6 MB in the end (delta: 3.1 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 47.69 ms. Allocated memory is still 178.3 MB. Free memory was 133.6 MB in the beginning and 131.5 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 1327.63 ms. Allocated memory was 178.3 MB in the beginning and 220.2 MB in the end (delta: 41.9 MB). Free memory was 131.5 MB in the beginning and 125.4 MB in the end (delta: 6.2 MB). Peak memory consumption was 70.1 MB. Max. memory is 8.0 GB. * TraceAbstraction took 86709.90 ms. Allocated memory was 220.2 MB in the beginning and 6.9 GB in the end (delta: 6.7 GB). Free memory was 124.8 MB in the beginning and 5.5 GB in the end (delta: -5.4 GB). Peak memory consumption was 1.3 GB. Max. memory is 8.0 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: [L710] 0 int __unbuffered_cnt = 0; VAL [__unbuffered_cnt=0] [L712] 0 int __unbuffered_p3_EAX = 0; VAL [__unbuffered_cnt=0, __unbuffered_p3_EAX=0] [L714] 0 int a = 0; VAL [__unbuffered_cnt=0, __unbuffered_p3_EAX=0, a=0] [L715] 0 _Bool main$tmp_guard0; VAL [__unbuffered_cnt=0, __unbuffered_p3_EAX=0, a=0, main$tmp_guard0=0] [L716] 0 _Bool main$tmp_guard1; VAL [__unbuffered_cnt=0, __unbuffered_p3_EAX=0, a=0, main$tmp_guard0=0, main$tmp_guard1=0] [L718] 0 int x = 0; VAL [__unbuffered_cnt=0, __unbuffered_p3_EAX=0, a=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0] [L720] 0 int y = 0; VAL [__unbuffered_cnt=0, __unbuffered_p3_EAX=0, a=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y=0] [L722] 0 int z = 0; VAL [__unbuffered_cnt=0, __unbuffered_p3_EAX=0, a=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y=0, z=0] [L723] 0 _Bool z$flush_delayed; VAL [__unbuffered_cnt=0, __unbuffered_p3_EAX=0, a=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y=0, z=0, z$flush_delayed=0] [L724] 0 int z$mem_tmp; VAL [__unbuffered_cnt=0, __unbuffered_p3_EAX=0, a=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0] [L725] 0 _Bool z$r_buff0_thd0; VAL [__unbuffered_cnt=0, __unbuffered_p3_EAX=0, a=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0] [L726] 0 _Bool z$r_buff0_thd1; VAL [__unbuffered_cnt=0, __unbuffered_p3_EAX=0, a=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0] [L727] 0 _Bool z$r_buff0_thd2; VAL [__unbuffered_cnt=0, __unbuffered_p3_EAX=0, a=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0] [L728] 0 _Bool z$r_buff0_thd3; VAL [__unbuffered_cnt=0, __unbuffered_p3_EAX=0, a=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0] [L729] 0 _Bool z$r_buff0_thd4; VAL [__unbuffered_cnt=0, __unbuffered_p3_EAX=0, a=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=0] [L730] 0 _Bool z$r_buff1_thd0; VAL [__unbuffered_cnt=0, __unbuffered_p3_EAX=0, a=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=0, z$r_buff1_thd0=0] [L731] 0 _Bool z$r_buff1_thd1; VAL [__unbuffered_cnt=0, __unbuffered_p3_EAX=0, a=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0] [L732] 0 _Bool z$r_buff1_thd2; VAL [__unbuffered_cnt=0, __unbuffered_p3_EAX=0, a=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0] [L733] 0 _Bool z$r_buff1_thd3; VAL [__unbuffered_cnt=0, __unbuffered_p3_EAX=0, a=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0] [L734] 0 _Bool z$r_buff1_thd4; VAL [__unbuffered_cnt=0, __unbuffered_p3_EAX=0, a=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0] [L735] 0 _Bool z$read_delayed; VAL [__unbuffered_cnt=0, __unbuffered_p3_EAX=0, a=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0] [L736] 0 int *z$read_delayed_var; VAL [__unbuffered_cnt=0, __unbuffered_p3_EAX=0, a=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}] [L737] 0 int z$w_buff0; VAL [__unbuffered_cnt=0, __unbuffered_p3_EAX=0, a=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=0] [L738] 0 _Bool z$w_buff0_used; VAL [__unbuffered_cnt=0, __unbuffered_p3_EAX=0, a=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=0, z$w_buff0_used=0] [L739] 0 int z$w_buff1; VAL [__unbuffered_cnt=0, __unbuffered_p3_EAX=0, a=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=0, z$w_buff0_used=0, z$w_buff1=0] [L740] 0 _Bool z$w_buff1_used; VAL [__unbuffered_cnt=0, __unbuffered_p3_EAX=0, a=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=0, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0] [L741] 0 _Bool weak$$choice0; VAL [__unbuffered_cnt=0, __unbuffered_p3_EAX=0, a=0, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, x=0, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=0, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0] [L742] 0 _Bool weak$$choice2; VAL [__unbuffered_cnt=0, __unbuffered_p3_EAX=0, a=0, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=0, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0] [L834] 0 pthread_t t1533; VAL [__unbuffered_cnt=0, __unbuffered_p3_EAX=0, a=0, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=0, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0] [L835] FCALL, FORK 0 pthread_create(&t1533, ((void *)0), P0, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p3_EAX=0, a=0, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=0, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0] [L836] 0 pthread_t t1534; VAL [__unbuffered_cnt=0, __unbuffered_p3_EAX=0, a=0, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=0, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0] [L837] FCALL, FORK 0 pthread_create(&t1534, ((void *)0), P1, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p3_EAX=0, a=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=0, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0] [L838] 0 pthread_t t1535; VAL [__unbuffered_cnt=0, __unbuffered_p3_EAX=0, a=0, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=0, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0] [L839] FCALL, FORK 0 pthread_create(&t1535, ((void *)0), P2, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p3_EAX=0, a=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=0, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0] [L840] 0 pthread_t t1536; VAL [__unbuffered_cnt=0, __unbuffered_p3_EAX=0, a=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=0, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0] [L841] FCALL, FORK 0 pthread_create(&t1536, ((void *)0), P3, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p3_EAX=0, a=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=0, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0] [L796] 4 z$w_buff1 = z$w_buff0 [L797] 4 z$w_buff0 = 2 [L798] 4 z$w_buff1_used = z$w_buff0_used [L799] 4 z$w_buff0_used = (_Bool)1 [L18] COND FALSE 4 !(!expression) [L801] 4 z$r_buff1_thd0 = z$r_buff0_thd0 [L802] 4 z$r_buff1_thd1 = z$r_buff0_thd1 [L803] 4 z$r_buff1_thd2 = z$r_buff0_thd2 [L804] 4 z$r_buff1_thd3 = z$r_buff0_thd3 [L805] 4 z$r_buff1_thd4 = z$r_buff0_thd4 [L806] 4 z$r_buff0_thd4 = (_Bool)1 VAL [__unbuffered_cnt=0, __unbuffered_p3_EAX=0, a=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=2, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0] [L809] 4 __unbuffered_p3_EAX = a VAL [__unbuffered_cnt=0, __unbuffered_p3_EAX=0, a=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=2, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0] [L746] 1 a = 1 VAL [__unbuffered_cnt=0, __unbuffered_p3_EAX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=2, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0] [L749] 1 x = 1 VAL [__unbuffered_cnt=0, __unbuffered_p3_EAX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=1, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=2, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0] [L761] 2 x = 2 VAL [__unbuffered_cnt=0, __unbuffered_p3_EAX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=2, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=2, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0] [L764] 2 y = 1 VAL [__unbuffered_cnt=0, __unbuffered_p3_EAX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=2, y=1, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=2, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0] [L776] 3 y = 2 VAL [__unbuffered_cnt=0, __unbuffered_p3_EAX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=2, y=2, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=2, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0] [L779] 3 z = 1 VAL [__unbuffered_cnt=0, __unbuffered_p3_EAX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=2, y=2, z=1, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=2, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0] [L812] EXPR 4 z$w_buff0_used && z$r_buff0_thd4 ? z$w_buff0 : (z$w_buff1_used && z$r_buff1_thd4 ? z$w_buff1 : z) [L812] 4 z = z$w_buff0_used && z$r_buff0_thd4 ? z$w_buff0 : (z$w_buff1_used && z$r_buff1_thd4 ? z$w_buff1 : z) [L813] EXPR 4 z$w_buff0_used && z$r_buff0_thd4 ? (_Bool)0 : z$w_buff0_used [L813] 4 z$w_buff0_used = z$w_buff0_used && z$r_buff0_thd4 ? (_Bool)0 : z$w_buff0_used [L814] EXPR 4 z$w_buff0_used && z$r_buff0_thd4 || z$w_buff1_used && z$r_buff1_thd4 ? (_Bool)0 : z$w_buff1_used [L814] 4 z$w_buff1_used = z$w_buff0_used && z$r_buff0_thd4 || z$w_buff1_used && z$r_buff1_thd4 ? (_Bool)0 : z$w_buff1_used [L815] EXPR 4 z$w_buff0_used && z$r_buff0_thd4 ? (_Bool)0 : z$r_buff0_thd4 [L815] 4 z$r_buff0_thd4 = z$w_buff0_used && z$r_buff0_thd4 ? (_Bool)0 : z$r_buff0_thd4 [L816] EXPR 4 z$w_buff0_used && z$r_buff0_thd4 || z$w_buff1_used && z$r_buff1_thd4 ? (_Bool)0 : z$r_buff1_thd4 [L816] 4 z$r_buff1_thd4 = z$w_buff0_used && z$r_buff0_thd4 || z$w_buff1_used && z$r_buff1_thd4 ? (_Bool)0 : z$r_buff1_thd4 [L782] EXPR 3 z$w_buff0_used && z$r_buff0_thd3 ? z$w_buff0 : (z$w_buff1_used && z$r_buff1_thd3 ? z$w_buff1 : z) [L782] EXPR 3 z$w_buff1_used && z$r_buff1_thd3 ? z$w_buff1 : z [L782] EXPR 3 z$w_buff0_used && z$r_buff0_thd3 ? z$w_buff0 : (z$w_buff1_used && z$r_buff1_thd3 ? z$w_buff1 : z) [L782] 3 z = z$w_buff0_used && z$r_buff0_thd3 ? z$w_buff0 : (z$w_buff1_used && z$r_buff1_thd3 ? z$w_buff1 : z) [L783] EXPR 3 z$w_buff0_used && z$r_buff0_thd3 ? (_Bool)0 : z$w_buff0_used [L783] 3 z$w_buff0_used = z$w_buff0_used && z$r_buff0_thd3 ? (_Bool)0 : z$w_buff0_used [L784] EXPR 3 z$w_buff0_used && z$r_buff0_thd3 || z$w_buff1_used && z$r_buff1_thd3 ? (_Bool)0 : z$w_buff1_used [L784] 3 z$w_buff1_used = z$w_buff0_used && z$r_buff0_thd3 || z$w_buff1_used && z$r_buff1_thd3 ? (_Bool)0 : z$w_buff1_used [L785] EXPR 3 z$w_buff0_used && z$r_buff0_thd3 ? (_Bool)0 : z$r_buff0_thd3 [L785] 3 z$r_buff0_thd3 = z$w_buff0_used && z$r_buff0_thd3 ? (_Bool)0 : z$r_buff0_thd3 [L786] EXPR 3 z$w_buff0_used && z$r_buff0_thd3 || z$w_buff1_used && z$r_buff1_thd3 ? (_Bool)0 : z$r_buff1_thd3 [L786] 3 z$r_buff1_thd3 = z$w_buff0_used && z$r_buff0_thd3 || z$w_buff1_used && z$r_buff1_thd3 ? (_Bool)0 : z$r_buff1_thd3 [L754] 1 __unbuffered_cnt = __unbuffered_cnt + 1 VAL [__unbuffered_cnt=1, __unbuffered_p3_EAX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=2, y=2, z=2, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=2, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0] [L769] 2 __unbuffered_cnt = __unbuffered_cnt + 1 VAL [__unbuffered_cnt=2, __unbuffered_p3_EAX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=2, y=2, z=2, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=2, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0] [L789] 3 __unbuffered_cnt = __unbuffered_cnt + 1 VAL [__unbuffered_cnt=3, __unbuffered_p3_EAX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=2, y=2, z=2, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=2, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0] [L819] 4 __unbuffered_cnt = __unbuffered_cnt + 1 VAL [__unbuffered_cnt=4, __unbuffered_p3_EAX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=2, y=2, z=2, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=2, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0] [L843] 0 main$tmp_guard0 = __unbuffered_cnt == 4 VAL [__unbuffered_cnt=4, __unbuffered_p3_EAX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=2, y=2, z=2, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=2, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0] [L3] COND FALSE 0 !(!cond) VAL [__unbuffered_cnt=4, __unbuffered_p3_EAX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=2, y=2, z=2, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=2, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0] [L847] EXPR 0 z$w_buff0_used && z$r_buff0_thd0 ? z$w_buff0 : (z$w_buff1_used && z$r_buff1_thd0 ? z$w_buff1 : z) [L847] EXPR 0 z$w_buff1_used && z$r_buff1_thd0 ? z$w_buff1 : z [L847] EXPR 0 z$w_buff0_used && z$r_buff0_thd0 ? z$w_buff0 : (z$w_buff1_used && z$r_buff1_thd0 ? z$w_buff1 : z) [L847] 0 z = z$w_buff0_used && z$r_buff0_thd0 ? z$w_buff0 : (z$w_buff1_used && z$r_buff1_thd0 ? z$w_buff1 : z) [L848] EXPR 0 z$w_buff0_used && z$r_buff0_thd0 ? (_Bool)0 : z$w_buff0_used [L848] 0 z$w_buff0_used = z$w_buff0_used && z$r_buff0_thd0 ? (_Bool)0 : z$w_buff0_used [L849] EXPR 0 z$w_buff0_used && z$r_buff0_thd0 || z$w_buff1_used && z$r_buff1_thd0 ? (_Bool)0 : z$w_buff1_used [L849] 0 z$w_buff1_used = z$w_buff0_used && z$r_buff0_thd0 || z$w_buff1_used && z$r_buff1_thd0 ? (_Bool)0 : z$w_buff1_used [L850] EXPR 0 z$w_buff0_used && z$r_buff0_thd0 ? (_Bool)0 : z$r_buff0_thd0 [L850] 0 z$r_buff0_thd0 = z$w_buff0_used && z$r_buff0_thd0 ? (_Bool)0 : z$r_buff0_thd0 [L851] EXPR 0 z$w_buff0_used && z$r_buff0_thd0 || z$w_buff1_used && z$r_buff1_thd0 ? (_Bool)0 : z$r_buff1_thd0 [L851] 0 z$r_buff1_thd0 = z$w_buff0_used && z$r_buff0_thd0 || z$w_buff1_used && z$r_buff1_thd0 ? (_Bool)0 : z$r_buff1_thd0 [L854] 0 weak$$choice0 = __VERIFIER_nondet_bool() [L855] 0 weak$$choice2 = __VERIFIER_nondet_bool() [L856] 0 z$flush_delayed = weak$$choice2 [L857] 0 z$mem_tmp = z [L858] EXPR 0 !z$w_buff0_used || !z$r_buff0_thd0 && !z$w_buff1_used || !z$r_buff0_thd0 && !z$r_buff1_thd0 ? z : (z$w_buff0_used && z$r_buff0_thd0 ? z$w_buff0 : z$w_buff1) [L858] 0 z = !z$w_buff0_used || !z$r_buff0_thd0 && !z$w_buff1_used || !z$r_buff0_thd0 && !z$r_buff1_thd0 ? z : (z$w_buff0_used && z$r_buff0_thd0 ? z$w_buff0 : z$w_buff1) [L859] EXPR 0 weak$$choice2 ? z$w_buff0 : (!z$w_buff0_used || !z$r_buff0_thd0 && !z$w_buff1_used || !z$r_buff0_thd0 && !z$r_buff1_thd0 ? z$w_buff0 : (z$w_buff0_used && z$r_buff0_thd0 ? z$w_buff0 : z$w_buff0)) [L859] EXPR 0 !z$w_buff0_used || !z$r_buff0_thd0 && !z$w_buff1_used || !z$r_buff0_thd0 && !z$r_buff1_thd0 ? z$w_buff0 : (z$w_buff0_used && z$r_buff0_thd0 ? z$w_buff0 : z$w_buff0) [L859] EXPR 0 weak$$choice2 ? z$w_buff0 : (!z$w_buff0_used || !z$r_buff0_thd0 && !z$w_buff1_used || !z$r_buff0_thd0 && !z$r_buff1_thd0 ? z$w_buff0 : (z$w_buff0_used && z$r_buff0_thd0 ? z$w_buff0 : z$w_buff0)) [L859] 0 z$w_buff0 = weak$$choice2 ? z$w_buff0 : (!z$w_buff0_used || !z$r_buff0_thd0 && !z$w_buff1_used || !z$r_buff0_thd0 && !z$r_buff1_thd0 ? z$w_buff0 : (z$w_buff0_used && z$r_buff0_thd0 ? z$w_buff0 : z$w_buff0)) [L860] EXPR 0 weak$$choice2 ? z$w_buff1 : (!z$w_buff0_used || !z$r_buff0_thd0 && !z$w_buff1_used || !z$r_buff0_thd0 && !z$r_buff1_thd0 ? z$w_buff1 : (z$w_buff0_used && z$r_buff0_thd0 ? z$w_buff1 : z$w_buff1)) [L860] EXPR 0 !z$w_buff0_used || !z$r_buff0_thd0 && !z$w_buff1_used || !z$r_buff0_thd0 && !z$r_buff1_thd0 ? z$w_buff1 : (z$w_buff0_used && z$r_buff0_thd0 ? z$w_buff1 : z$w_buff1) [L860] EXPR 0 weak$$choice2 ? z$w_buff1 : (!z$w_buff0_used || !z$r_buff0_thd0 && !z$w_buff1_used || !z$r_buff0_thd0 && !z$r_buff1_thd0 ? z$w_buff1 : (z$w_buff0_used && z$r_buff0_thd0 ? z$w_buff1 : z$w_buff1)) [L860] 0 z$w_buff1 = weak$$choice2 ? z$w_buff1 : (!z$w_buff0_used || !z$r_buff0_thd0 && !z$w_buff1_used || !z$r_buff0_thd0 && !z$r_buff1_thd0 ? z$w_buff1 : (z$w_buff0_used && z$r_buff0_thd0 ? z$w_buff1 : z$w_buff1)) [L861] EXPR 0 weak$$choice2 ? z$w_buff0_used : (!z$w_buff0_used || !z$r_buff0_thd0 && !z$w_buff1_used || !z$r_buff0_thd0 && !z$r_buff1_thd0 ? z$w_buff0_used : (z$w_buff0_used && z$r_buff0_thd0 ? (_Bool)0 : z$w_buff0_used)) [L861] EXPR 0 !z$w_buff0_used || !z$r_buff0_thd0 && !z$w_buff1_used || !z$r_buff0_thd0 && !z$r_buff1_thd0 ? z$w_buff0_used : (z$w_buff0_used && z$r_buff0_thd0 ? (_Bool)0 : z$w_buff0_used) [L861] EXPR 0 weak$$choice2 ? z$w_buff0_used : (!z$w_buff0_used || !z$r_buff0_thd0 && !z$w_buff1_used || !z$r_buff0_thd0 && !z$r_buff1_thd0 ? z$w_buff0_used : (z$w_buff0_used && z$r_buff0_thd0 ? (_Bool)0 : z$w_buff0_used)) [L861] 0 z$w_buff0_used = weak$$choice2 ? z$w_buff0_used : (!z$w_buff0_used || !z$r_buff0_thd0 && !z$w_buff1_used || !z$r_buff0_thd0 && !z$r_buff1_thd0 ? z$w_buff0_used : (z$w_buff0_used && z$r_buff0_thd0 ? (_Bool)0 : z$w_buff0_used)) [L862] EXPR 0 weak$$choice2 ? z$w_buff1_used : (!z$w_buff0_used || !z$r_buff0_thd0 && !z$w_buff1_used || !z$r_buff0_thd0 && !z$r_buff1_thd0 ? z$w_buff1_used : (z$w_buff0_used && z$r_buff0_thd0 ? (_Bool)0 : (_Bool)0)) [L862] EXPR 0 !z$w_buff0_used || !z$r_buff0_thd0 && !z$w_buff1_used || !z$r_buff0_thd0 && !z$r_buff1_thd0 ? z$w_buff1_used : (z$w_buff0_used && z$r_buff0_thd0 ? (_Bool)0 : (_Bool)0) [L862] EXPR 0 weak$$choice2 ? z$w_buff1_used : (!z$w_buff0_used || !z$r_buff0_thd0 && !z$w_buff1_used || !z$r_buff0_thd0 && !z$r_buff1_thd0 ? z$w_buff1_used : (z$w_buff0_used && z$r_buff0_thd0 ? (_Bool)0 : (_Bool)0)) [L862] 0 z$w_buff1_used = weak$$choice2 ? z$w_buff1_used : (!z$w_buff0_used || !z$r_buff0_thd0 && !z$w_buff1_used || !z$r_buff0_thd0 && !z$r_buff1_thd0 ? z$w_buff1_used : (z$w_buff0_used && z$r_buff0_thd0 ? (_Bool)0 : (_Bool)0)) [L863] EXPR 0 weak$$choice2 ? z$r_buff0_thd0 : (!z$w_buff0_used || !z$r_buff0_thd0 && !z$w_buff1_used || !z$r_buff0_thd0 && !z$r_buff1_thd0 ? z$r_buff0_thd0 : (z$w_buff0_used && z$r_buff0_thd0 ? (_Bool)0 : z$r_buff0_thd0)) [L863] EXPR 0 !z$w_buff0_used || !z$r_buff0_thd0 && !z$w_buff1_used || !z$r_buff0_thd0 && !z$r_buff1_thd0 ? z$r_buff0_thd0 : (z$w_buff0_used && z$r_buff0_thd0 ? (_Bool)0 : z$r_buff0_thd0) [L863] EXPR 0 weak$$choice2 ? z$r_buff0_thd0 : (!z$w_buff0_used || !z$r_buff0_thd0 && !z$w_buff1_used || !z$r_buff0_thd0 && !z$r_buff1_thd0 ? z$r_buff0_thd0 : (z$w_buff0_used && z$r_buff0_thd0 ? (_Bool)0 : z$r_buff0_thd0)) [L863] 0 z$r_buff0_thd0 = weak$$choice2 ? z$r_buff0_thd0 : (!z$w_buff0_used || !z$r_buff0_thd0 && !z$w_buff1_used || !z$r_buff0_thd0 && !z$r_buff1_thd0 ? z$r_buff0_thd0 : (z$w_buff0_used && z$r_buff0_thd0 ? (_Bool)0 : z$r_buff0_thd0)) [L864] EXPR 0 weak$$choice2 ? z$r_buff1_thd0 : (!z$w_buff0_used || !z$r_buff0_thd0 && !z$w_buff1_used || !z$r_buff0_thd0 && !z$r_buff1_thd0 ? z$r_buff1_thd0 : (z$w_buff0_used && z$r_buff0_thd0 ? (_Bool)0 : (_Bool)0)) [L864] EXPR 0 !z$w_buff0_used || !z$r_buff0_thd0 && !z$w_buff1_used || !z$r_buff0_thd0 && !z$r_buff1_thd0 ? z$r_buff1_thd0 : (z$w_buff0_used && z$r_buff0_thd0 ? (_Bool)0 : (_Bool)0) [L864] EXPR 0 weak$$choice2 ? z$r_buff1_thd0 : (!z$w_buff0_used || !z$r_buff0_thd0 && !z$w_buff1_used || !z$r_buff0_thd0 && !z$r_buff1_thd0 ? z$r_buff1_thd0 : (z$w_buff0_used && z$r_buff0_thd0 ? (_Bool)0 : (_Bool)0)) [L864] 0 z$r_buff1_thd0 = weak$$choice2 ? z$r_buff1_thd0 : (!z$w_buff0_used || !z$r_buff0_thd0 && !z$w_buff1_used || !z$r_buff0_thd0 && !z$r_buff1_thd0 ? z$r_buff1_thd0 : (z$w_buff0_used && z$r_buff0_thd0 ? (_Bool)0 : (_Bool)0)) [L865] 0 main$tmp_guard1 = !(x == 2 && y == 2 && z == 2 && __unbuffered_p3_EAX == 0) [L866] EXPR 0 z$flush_delayed ? z$mem_tmp : z [L866] 0 z = z$flush_delayed ? z$mem_tmp : z [L867] 0 z$flush_delayed = (_Bool)0 VAL [__unbuffered_cnt=4, __unbuffered_p3_EAX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, weak$$choice0=49, weak$$choice2=0, x=2, y=2, z=2, z$flush_delayed=0, z$mem_tmp=2, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=2, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0] [L18] COND TRUE 0 !expression VAL [__unbuffered_cnt=4, __unbuffered_p3_EAX=0, a=1, arg={0:0}, arg={0:0}, 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, z=2, z$flush_delayed=0, z$mem_tmp=2, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=2, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0] [L18] 0 reach_error() VAL [__unbuffered_cnt=4, __unbuffered_p3_EAX=0, a=1, arg={0:0}, arg={0:0}, 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, z=2, z$flush_delayed=0, z$mem_tmp=2, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=2, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0] - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 9 procedures, 158 locations, 7 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 10.3ms, RemoveRedundantFlowTime: 0.0ms, RemoveRedundantFlowUnfoldingTime: 0.0ms, BackfoldingTime: 0.0ms, BackfoldingUnfoldingTime: 0.0ms, FlowIncreaseByBackfolding: 0, BasicCegarLoop: VerificationResult: UNSAFE, OverallTime: 86507.5ms, OverallIterations: 20, TraceHistogramMax: 1, EmptinessCheckTime: 0.0ms, AutomataDifference: 83144.5ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 40.2ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 238 SDtfs, 941 SDslu, 898 SDs, 0 SdLazy, 1613 SolverSat, 421 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1400.1ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 302 GetRequests, 37 SyntacticMatches, 4 SemanticMatches, 261 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 743 ImplicationChecksByTransitivity, 2912.7ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=46908occurred in iteration=16, InterpolantAutomatonStates: 245, 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: 46.0ms SsaConstructionTime, 509.4ms SatisfiabilityAnalysisTime, 2501.6ms InterpolantComputationTime, 1683 NumberOfCodeBlocks, 1683 NumberOfCodeBlocksAsserted, 20 NumberOfCheckSat, 1569 ConstructedInterpolants, 0 QuantifiedInterpolants, 7832 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 19 InterpolantComputations, 19 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...