/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-RepeatedSemanticLbeWithDisjunctivePredicates.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-wmm/safe006_tso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-d5b4239aa45c8d22a30959944f2ef622f7386a6d-d5b4239 [2021-03-26 10:29:33,092 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-03-26 10:29:33,095 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-03-26 10:29:33,132 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-03-26 10:29:33,132 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-03-26 10:29:33,135 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-03-26 10:29:33,137 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-03-26 10:29:33,150 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-03-26 10:29:33,153 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-03-26 10:29:33,157 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-03-26 10:29:33,159 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-03-26 10:29:33,160 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-03-26 10:29:33,161 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-03-26 10:29:33,162 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-03-26 10:29:33,164 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-03-26 10:29:33,165 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-03-26 10:29:33,168 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-03-26 10:29:33,169 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-03-26 10:29:33,172 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-03-26 10:29:33,181 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-03-26 10:29:33,182 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-03-26 10:29:33,184 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-03-26 10:29:33,185 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-03-26 10:29:33,187 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-03-26 10:29:33,192 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-03-26 10:29:33,199 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-03-26 10:29:33,199 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-03-26 10:29:33,200 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-03-26 10:29:33,201 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-RepeatedSemanticLbeWithDisjunctivePredicates.epf [2021-03-26 10:29:33,230 INFO L113 SettingsManager]: Loading preferences was successful [2021-03-26 10:29:33,231 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-03-26 10:29:33,234 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-03-26 10:29:33,234 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-03-26 10:29:33,234 INFO L138 SettingsManager]: * Use SBE=true [2021-03-26 10:29:33,234 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-03-26 10:29:33,234 INFO L138 SettingsManager]: * sizeof long=4 [2021-03-26 10:29:33,235 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-03-26 10:29:33,235 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-03-26 10:29:33,235 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-03-26 10:29:33,235 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-03-26 10:29:33,236 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-03-26 10:29:33,236 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-03-26 10:29:33,236 INFO L138 SettingsManager]: * sizeof long double=12 [2021-03-26 10:29:33,236 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-03-26 10:29:33,236 INFO L138 SettingsManager]: * Use constant arrays=true [2021-03-26 10:29:33,236 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-03-26 10:29:33,236 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-03-26 10:29:33,237 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-03-26 10:29:33,237 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-03-26 10:29:33,237 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-03-26 10:29:33,237 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-03-26 10:29:33,237 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-03-26 10:29:33,237 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-03-26 10:29:33,237 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-03-26 10:29:33,238 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-03-26 10:29:33,238 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-03-26 10:29:33,238 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=SEMANTIC_BASED_MOVER_CHECK_WITH_PREDICATES_DISJUNCTIVE [2021-03-26 10:29:33,238 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-03-26 10:29:33,238 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-03-26 10:29:33,238 INFO L138 SettingsManager]: * Apply repeated Lipton Reduction=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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-03-26 10:29:33,551 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-03-26 10:29:33,569 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-03-26 10:29:33,571 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-03-26 10:29:33,572 INFO L271 PluginConnector]: Initializing CDTParser... [2021-03-26 10:29:33,573 INFO L275 PluginConnector]: CDTParser initialized [2021-03-26 10:29:33,573 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe006_tso.opt.i [2021-03-26 10:29:33,639 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d3a9adfa9/d0b5c28a215f479e91905336b70a090a/FLAG9006fb10d [2021-03-26 10:29:34,177 INFO L306 CDTParser]: Found 1 translation units. [2021-03-26 10:29:34,178 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe006_tso.opt.i [2021-03-26 10:29:34,193 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d3a9adfa9/d0b5c28a215f479e91905336b70a090a/FLAG9006fb10d [2021-03-26 10:29:34,608 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d3a9adfa9/d0b5c28a215f479e91905336b70a090a [2021-03-26 10:29:34,610 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-03-26 10:29:34,612 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-03-26 10:29:34,613 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-03-26 10:29:34,613 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-03-26 10:29:34,617 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-03-26 10:29:34,618 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.03 10:29:34" (1/1) ... [2021-03-26 10:29:34,618 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@22c62ccd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 10:29:34, skipping insertion in model container [2021-03-26 10:29:34,619 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.03 10:29:34" (1/1) ... [2021-03-26 10:29:34,624 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-03-26 10:29:34,676 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-03-26 10:29:34,778 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe006_tso.opt.i[949,962] [2021-03-26 10:29:34,934 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-03-26 10:29:34,954 INFO L203 MainTranslator]: Completed pre-run [2021-03-26 10:29:34,967 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe006_tso.opt.i[949,962] [2021-03-26 10:29:35,003 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-03-26 10:29:35,078 INFO L208 MainTranslator]: Completed translation [2021-03-26 10:29:35,078 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 10:29:35 WrapperNode [2021-03-26 10:29:35,080 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-03-26 10:29:35,081 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-03-26 10:29:35,081 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-03-26 10:29:35,081 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-03-26 10:29:35,087 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 10:29:35" (1/1) ... [2021-03-26 10:29:35,116 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 10:29:35" (1/1) ... [2021-03-26 10:29:35,134 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-03-26 10:29:35,135 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-03-26 10:29:35,135 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-03-26 10:29:35,135 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-03-26 10:29:35,141 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 10:29:35" (1/1) ... [2021-03-26 10:29:35,142 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 10:29:35" (1/1) ... [2021-03-26 10:29:35,146 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 10:29:35" (1/1) ... [2021-03-26 10:29:35,146 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 10:29:35" (1/1) ... [2021-03-26 10:29:35,162 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 10:29:35" (1/1) ... [2021-03-26 10:29:35,163 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 10:29:35" (1/1) ... [2021-03-26 10:29:35,165 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 10:29:35" (1/1) ... [2021-03-26 10:29:35,166 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-03-26 10:29:35,167 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-03-26 10:29:35,167 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-03-26 10:29:35,167 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-03-26 10:29:35,168 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 10:29:35" (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 [2021-03-26 10:29:35,241 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-03-26 10:29:35,242 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-03-26 10:29:35,242 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-03-26 10:29:35,242 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-03-26 10:29:35,243 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2021-03-26 10:29:35,243 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2021-03-26 10:29:35,244 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2021-03-26 10:29:35,244 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2021-03-26 10:29:35,244 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-03-26 10:29:35,244 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-03-26 10:29:35,244 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-03-26 10:29:35,244 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-03-26 10:29:35,245 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-03-26 10:29:35,584 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-03-26 10:29:35,584 INFO L299 CfgBuilder]: Removed 8 assume(true) statements. [2021-03-26 10:29:35,585 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.03 10:29:35 BoogieIcfgContainer [2021-03-26 10:29:35,585 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-03-26 10:29:35,587 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-03-26 10:29:35,587 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-03-26 10:29:35,592 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-03-26 10:29:35,593 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.03 10:29:34" (1/3) ... [2021-03-26 10:29:35,593 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7bd1848e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.03 10:29:35, skipping insertion in model container [2021-03-26 10:29:35,593 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 10:29:35" (2/3) ... [2021-03-26 10:29:35,594 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7bd1848e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.03 10:29:35, skipping insertion in model container [2021-03-26 10:29:35,594 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.03 10:29:35" (3/3) ... [2021-03-26 10:29:35,595 INFO L111 eAbstractionObserver]: Analyzing ICFG safe006_tso.opt.i [2021-03-26 10:29:35,599 INFO L149 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-03-26 10:29:35,602 INFO L161 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-03-26 10:29:35,602 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-03-26 10:29:35,631 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:29:35,631 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:29:35,631 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:29:35,631 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:29:35,632 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:29:35,632 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:29:35,632 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:29:35,632 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:29:35,633 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:29:35,633 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:29:35,633 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:29:35,633 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:29:35,634 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:29:35,635 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:29:35,635 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:29:35,635 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:29:35,635 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:29:35,636 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:29:35,636 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:29:35,636 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:29:35,637 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:29:35,637 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:29:35,637 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:29:35,637 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:29:35,639 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:29:35,639 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:29:35,640 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:29:35,640 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:29:35,644 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:29:35,645 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:29:35,645 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:29:35,645 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:29:35,647 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-03-26 10:29:35,660 INFO L253 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-03-26 10:29:35,677 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-03-26 10:29:35,677 INFO L377 AbstractCegarLoop]: Hoare is false [2021-03-26 10:29:35,677 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-03-26 10:29:35,678 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-03-26 10:29:35,678 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-03-26 10:29:35,678 INFO L381 AbstractCegarLoop]: Difference is false [2021-03-26 10:29:35,678 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-03-26 10:29:35,678 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-03-26 10:29:35,686 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 66 places, 61 transitions, 132 flow [2021-03-26 10:29:35,713 INFO L129 PetriNetUnfolder]: 2/59 cut-off events. [2021-03-26 10:29:35,713 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 10:29:35,716 INFO L84 FinitePrefix]: Finished finitePrefix Result has 66 conditions, 59 events. 2/59 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 35 event pairs, 0 based on Foata normal form. 0/56 useless extension candidates. Maximal degree in co-relation 42. Up to 2 conditions per place. [2021-03-26 10:29:35,716 INFO L82 GeneralOperation]: Start removeDead. Operand has 66 places, 61 transitions, 132 flow [2021-03-26 10:29:35,719 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 55 places, 49 transitions, 104 flow [2021-03-26 10:29:35,721 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 10:29:35,733 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 55 places, 49 transitions, 104 flow [2021-03-26 10:29:35,735 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 55 places, 49 transitions, 104 flow [2021-03-26 10:29:35,736 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 55 places, 49 transitions, 104 flow [2021-03-26 10:29:35,759 INFO L129 PetriNetUnfolder]: 1/49 cut-off events. [2021-03-26 10:29:35,759 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 10:29:35,760 INFO L84 FinitePrefix]: Finished finitePrefix Result has 56 conditions, 49 events. 1/49 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 30 event pairs, 0 based on Foata normal form. 0/48 useless extension candidates. Maximal degree in co-relation 32. Up to 2 conditions per place. [2021-03-26 10:29:35,761 INFO L142 LiptonReduction]: Number of co-enabled transitions 456 [2021-03-26 10:29:36,978 INFO L154 LiptonReduction]: Checked pairs total: 608 [2021-03-26 10:29:36,978 INFO L156 LiptonReduction]: Total number of compositions: 34 [2021-03-26 10:29:36,981 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 1261 [2021-03-26 10:29:36,997 INFO L129 PetriNetUnfolder]: 0/13 cut-off events. [2021-03-26 10:29:36,998 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 10:29:36,998 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 10:29:36,998 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 10:29:36,999 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-26 10:29:37,004 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 10:29:37,005 INFO L82 PathProgramCache]: Analyzing trace with hash -1656014901, now seen corresponding path program 1 times [2021-03-26 10:29:37,014 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 10:29:37,015 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1189305939] [2021-03-26 10:29:37,015 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 10:29:37,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 10:29:37,274 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:29:37,275 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 10:29:37,281 INFO L142 QuantifierPusher]: treesize reduction 3, result has 75.0 percent of original size [2021-03-26 10:29:37,281 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-26 10:29:37,295 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 10:29:37,297 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1189305939] [2021-03-26 10:29:37,297 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 10:29:37,298 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-03-26 10:29:37,298 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1187002776] [2021-03-26 10:29:37,306 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-26 10:29:37,306 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 10:29:37,316 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-26 10:29:37,318 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-26 10:29:37,321 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 77 out of 95 [2021-03-26 10:29:37,324 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 22 places, 15 transitions, 36 flow. Second operand has 3 states, 3 states have (on average 77.66666666666667) internal successors, (233), 3 states have internal predecessors, (233), 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) [2021-03-26 10:29:37,324 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 10:29:37,324 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 77 of 95 [2021-03-26 10:29:37,325 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 10:29:37,351 INFO L129 PetriNetUnfolder]: 3/25 cut-off events. [2021-03-26 10:29:37,352 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 10:29:37,352 INFO L84 FinitePrefix]: Finished finitePrefix Result has 43 conditions, 25 events. 3/25 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 38 event pairs, 1 based on Foata normal form. 1/24 useless extension candidates. Maximal degree in co-relation 32. Up to 10 conditions per place. [2021-03-26 10:29:37,353 INFO L132 encePairwiseOnDemand]: 91/95 looper letters, 3 selfloop transitions, 3 changer transitions 0/17 dead transitions. [2021-03-26 10:29:37,354 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 24 places, 17 transitions, 52 flow [2021-03-26 10:29:37,355 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-26 10:29:37,357 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-26 10:29:37,365 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 238 transitions. [2021-03-26 10:29:37,367 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8350877192982457 [2021-03-26 10:29:37,368 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 238 transitions. [2021-03-26 10:29:37,368 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 238 transitions. [2021-03-26 10:29:37,370 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 10:29:37,373 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 238 transitions. [2021-03-26 10:29:37,381 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 79.33333333333333) internal successors, (238), 3 states have internal predecessors, (238), 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) [2021-03-26 10:29:37,393 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 95.0) internal successors, (380), 4 states have internal predecessors, (380), 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) [2021-03-26 10:29:37,393 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 95.0) internal successors, (380), 4 states have internal predecessors, (380), 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) [2021-03-26 10:29:37,395 INFO L185 Difference]: Start difference. First operand has 22 places, 15 transitions, 36 flow. Second operand 3 states and 238 transitions. [2021-03-26 10:29:37,395 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 24 places, 17 transitions, 52 flow [2021-03-26 10:29:37,397 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 22 places, 17 transitions, 50 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-03-26 10:29:37,398 INFO L241 Difference]: Finished difference. Result has 23 places, 17 transitions, 53 flow [2021-03-26 10:29:37,410 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=95, PETRI_DIFFERENCE_MINUEND_FLOW=34, PETRI_DIFFERENCE_MINUEND_PLACES=20, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=15, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=12, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=53, PETRI_PLACES=23, PETRI_TRANSITIONS=17} [2021-03-26 10:29:37,411 INFO L343 CegarLoopForPetriNet]: 22 programPoint places, 1 predicate places. [2021-03-26 10:29:37,411 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 10:29:37,411 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 23 places, 17 transitions, 53 flow [2021-03-26 10:29:37,411 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 23 places, 17 transitions, 53 flow [2021-03-26 10:29:37,412 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 23 places, 17 transitions, 53 flow [2021-03-26 10:29:37,416 INFO L129 PetriNetUnfolder]: 3/25 cut-off events. [2021-03-26 10:29:37,416 INFO L130 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2021-03-26 10:29:37,416 INFO L84 FinitePrefix]: Finished finitePrefix Result has 44 conditions, 25 events. 3/25 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 39 event pairs, 1 based on Foata normal form. 0/23 useless extension candidates. Maximal degree in co-relation 34. Up to 10 conditions per place. [2021-03-26 10:29:37,416 INFO L142 LiptonReduction]: Number of co-enabled transitions 68 [2021-03-26 10:29:37,849 WARN L205 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 74 [2021-03-26 10:29:38,076 WARN L205 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 74 [2021-03-26 10:29:38,148 INFO L154 LiptonReduction]: Checked pairs total: 136 [2021-03-26 10:29:38,148 INFO L156 LiptonReduction]: Total number of compositions: 3 [2021-03-26 10:29:38,148 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 737 [2021-03-26 10:29:38,150 INFO L480 AbstractCegarLoop]: Abstraction has has 20 places, 14 transitions, 47 flow [2021-03-26 10:29:38,150 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 77.66666666666667) internal successors, (233), 3 states have internal predecessors, (233), 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) [2021-03-26 10:29:38,150 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 10:29:38,150 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 10:29:38,150 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-03-26 10:29:38,151 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-26 10:29:38,152 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 10:29:38,152 INFO L82 PathProgramCache]: Analyzing trace with hash 203145301, now seen corresponding path program 1 times [2021-03-26 10:29:38,152 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 10:29:38,153 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2005603628] [2021-03-26 10:29:38,153 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 10:29:38,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 10:29:38,237 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:29:38,237 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 10:29:38,239 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:29:38,239 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 10:29:38,242 INFO L142 QuantifierPusher]: treesize reduction 3, result has 75.0 percent of original size [2021-03-26 10:29:38,243 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-26 10:29:38,248 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 10:29:38,248 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2005603628] [2021-03-26 10:29:38,249 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 10:29:38,249 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-26 10:29:38,249 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [536866360] [2021-03-26 10:29:38,250 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-26 10:29:38,250 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 10:29:38,251 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-26 10:29:38,252 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-03-26 10:29:38,253 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 74 out of 98 [2021-03-26 10:29:38,253 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 20 places, 14 transitions, 47 flow. Second operand has 4 states, 4 states have (on average 74.75) internal successors, (299), 4 states have internal predecessors, (299), 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) [2021-03-26 10:29:38,253 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 10:29:38,253 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 74 of 98 [2021-03-26 10:29:38,254 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 10:29:38,281 INFO L129 PetriNetUnfolder]: 4/34 cut-off events. [2021-03-26 10:29:38,281 INFO L130 PetriNetUnfolder]: For 9/12 co-relation queries the response was YES. [2021-03-26 10:29:38,282 INFO L84 FinitePrefix]: Finished finitePrefix Result has 74 conditions, 34 events. 4/34 cut-off events. For 9/12 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 98 event pairs, 0 based on Foata normal form. 3/37 useless extension candidates. Maximal degree in co-relation 64. Up to 12 conditions per place. [2021-03-26 10:29:38,282 INFO L132 encePairwiseOnDemand]: 93/98 looper letters, 4 selfloop transitions, 6 changer transitions 0/17 dead transitions. [2021-03-26 10:29:38,282 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 24 places, 17 transitions, 77 flow [2021-03-26 10:29:38,282 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-26 10:29:38,282 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-03-26 10:29:38,284 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 381 transitions. [2021-03-26 10:29:38,285 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7775510204081633 [2021-03-26 10:29:38,285 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 381 transitions. [2021-03-26 10:29:38,285 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 381 transitions. [2021-03-26 10:29:38,285 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 10:29:38,285 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 381 transitions. [2021-03-26 10:29:38,287 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 76.2) internal successors, (381), 5 states have internal predecessors, (381), 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) [2021-03-26 10:29:38,289 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 98.0) internal successors, (588), 6 states have internal predecessors, (588), 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) [2021-03-26 10:29:38,289 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 98.0) internal successors, (588), 6 states have internal predecessors, (588), 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) [2021-03-26 10:29:38,289 INFO L185 Difference]: Start difference. First operand has 20 places, 14 transitions, 47 flow. Second operand 5 states and 381 transitions. [2021-03-26 10:29:38,289 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 24 places, 17 transitions, 77 flow [2021-03-26 10:29:38,290 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 23 places, 17 transitions, 74 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-03-26 10:29:38,290 INFO L241 Difference]: Finished difference. Result has 26 places, 16 transitions, 78 flow [2021-03-26 10:29:38,291 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=98, PETRI_DIFFERENCE_MINUEND_FLOW=44, PETRI_DIFFERENCE_MINUEND_PLACES=19, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=14, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=9, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=78, PETRI_PLACES=26, PETRI_TRANSITIONS=16} [2021-03-26 10:29:38,291 INFO L343 CegarLoopForPetriNet]: 22 programPoint places, 4 predicate places. [2021-03-26 10:29:38,291 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 10:29:38,291 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 26 places, 16 transitions, 78 flow [2021-03-26 10:29:38,292 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 26 places, 16 transitions, 78 flow [2021-03-26 10:29:38,292 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 26 places, 16 transitions, 78 flow [2021-03-26 10:29:38,296 INFO L129 PetriNetUnfolder]: 1/30 cut-off events. [2021-03-26 10:29:38,296 INFO L130 PetriNetUnfolder]: For 16/17 co-relation queries the response was YES. [2021-03-26 10:29:38,296 INFO L84 FinitePrefix]: Finished finitePrefix Result has 73 conditions, 30 events. 1/30 cut-off events. For 16/17 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 81 event pairs, 0 based on Foata normal form. 0/30 useless extension candidates. Maximal degree in co-relation 61. Up to 10 conditions per place. [2021-03-26 10:29:38,297 INFO L142 LiptonReduction]: Number of co-enabled transitions 58 [2021-03-26 10:29:38,298 INFO L154 LiptonReduction]: Checked pairs total: 55 [2021-03-26 10:29:38,298 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 10:29:38,299 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 8 [2021-03-26 10:29:38,300 INFO L480 AbstractCegarLoop]: Abstraction has has 26 places, 16 transitions, 78 flow [2021-03-26 10:29:38,300 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 74.75) internal successors, (299), 4 states have internal predecessors, (299), 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) [2021-03-26 10:29:38,300 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 10:29:38,300 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-03-26 10:29:38,300 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-03-26 10:29:38,300 INFO L428 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-26 10:29:38,301 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 10:29:38,301 INFO L82 PathProgramCache]: Analyzing trace with hash 77420419, now seen corresponding path program 1 times [2021-03-26 10:29:38,301 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 10:29:38,301 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [254840888] [2021-03-26 10:29:38,301 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 10:29:38,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 10:29:38,328 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:29:38,329 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 10:29:38,331 INFO L142 QuantifierPusher]: treesize reduction 3, result has 75.0 percent of original size [2021-03-26 10:29:38,332 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-26 10:29:38,336 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 10:29:38,336 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [254840888] [2021-03-26 10:29:38,337 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 10:29:38,337 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-03-26 10:29:38,337 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [993165648] [2021-03-26 10:29:38,337 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-26 10:29:38,337 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 10:29:38,338 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-26 10:29:38,338 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-03-26 10:29:38,339 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 78 out of 98 [2021-03-26 10:29:38,340 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 26 places, 16 transitions, 78 flow. Second operand has 4 states, 4 states have (on average 78.75) internal successors, (315), 4 states have internal predecessors, (315), 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) [2021-03-26 10:29:38,340 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 10:29:38,340 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 78 of 98 [2021-03-26 10:29:38,340 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 10:29:38,350 INFO L129 PetriNetUnfolder]: 1/21 cut-off events. [2021-03-26 10:29:38,350 INFO L130 PetriNetUnfolder]: For 19/21 co-relation queries the response was YES. [2021-03-26 10:29:38,350 INFO L84 FinitePrefix]: Finished finitePrefix Result has 62 conditions, 21 events. 1/21 cut-off events. For 19/21 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 42 event pairs, 0 based on Foata normal form. 3/24 useless extension candidates. Maximal degree in co-relation 48. Up to 7 conditions per place. [2021-03-26 10:29:38,351 INFO L132 encePairwiseOnDemand]: 95/98 looper letters, 3 selfloop transitions, 3 changer transitions 2/16 dead transitions. [2021-03-26 10:29:38,351 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 28 places, 16 transitions, 92 flow [2021-03-26 10:29:38,355 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-26 10:29:38,356 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-26 10:29:38,359 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 240 transitions. [2021-03-26 10:29:38,359 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8163265306122449 [2021-03-26 10:29:38,360 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 240 transitions. [2021-03-26 10:29:38,363 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 240 transitions. [2021-03-26 10:29:38,363 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 10:29:38,363 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 240 transitions. [2021-03-26 10:29:38,364 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 80.0) internal successors, (240), 3 states have internal predecessors, (240), 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) [2021-03-26 10:29:38,365 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 98.0) internal successors, (392), 4 states have internal predecessors, (392), 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) [2021-03-26 10:29:38,368 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 98.0) internal successors, (392), 4 states have internal predecessors, (392), 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) [2021-03-26 10:29:38,368 INFO L185 Difference]: Start difference. First operand has 26 places, 16 transitions, 78 flow. Second operand 3 states and 240 transitions. [2021-03-26 10:29:38,368 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 28 places, 16 transitions, 92 flow [2021-03-26 10:29:38,369 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 27 places, 16 transitions, 90 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-03-26 10:29:38,370 INFO L241 Difference]: Finished difference. Result has 28 places, 14 transitions, 73 flow [2021-03-26 10:29:38,370 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=98, PETRI_DIFFERENCE_MINUEND_FLOW=76, PETRI_DIFFERENCE_MINUEND_PLACES=25, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=16, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=13, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=73, PETRI_PLACES=28, PETRI_TRANSITIONS=14} [2021-03-26 10:29:38,370 INFO L343 CegarLoopForPetriNet]: 22 programPoint places, 6 predicate places. [2021-03-26 10:29:38,370 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 10:29:38,370 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 28 places, 14 transitions, 73 flow [2021-03-26 10:29:38,370 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 28 places, 14 transitions, 73 flow [2021-03-26 10:29:38,371 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 27 places, 14 transitions, 73 flow [2021-03-26 10:29:38,373 INFO L129 PetriNetUnfolder]: 1/16 cut-off events. [2021-03-26 10:29:38,373 INFO L130 PetriNetUnfolder]: For 16/18 co-relation queries the response was YES. [2021-03-26 10:29:38,374 INFO L84 FinitePrefix]: Finished finitePrefix Result has 49 conditions, 16 events. 1/16 cut-off events. For 16/18 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 20 event pairs, 0 based on Foata normal form. 1/17 useless extension candidates. Maximal degree in co-relation 37. Up to 6 conditions per place. [2021-03-26 10:29:38,374 INFO L142 LiptonReduction]: Number of co-enabled transitions 50 [2021-03-26 10:29:38,402 INFO L154 LiptonReduction]: Checked pairs total: 81 [2021-03-26 10:29:38,402 INFO L156 LiptonReduction]: Total number of compositions: 1 [2021-03-26 10:29:38,402 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 32 [2021-03-26 10:29:38,405 INFO L480 AbstractCegarLoop]: Abstraction has has 27 places, 14 transitions, 73 flow [2021-03-26 10:29:38,406 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 78.75) internal successors, (315), 4 states have internal predecessors, (315), 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) [2021-03-26 10:29:38,406 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 10:29:38,406 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 10:29:38,406 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-03-26 10:29:38,406 INFO L428 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-26 10:29:38,406 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 10:29:38,406 INFO L82 PathProgramCache]: Analyzing trace with hash -1895559587, now seen corresponding path program 1 times [2021-03-26 10:29:38,407 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 10:29:38,407 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2109584619] [2021-03-26 10:29:38,407 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 10:29:38,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 10:29:38,465 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:29:38,465 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 10:29:38,468 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:29:38,468 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 10:29:38,472 INFO L142 QuantifierPusher]: treesize reduction 3, result has 75.0 percent of original size [2021-03-26 10:29:38,474 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-26 10:29:38,478 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 10:29:38,479 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2109584619] [2021-03-26 10:29:38,479 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 10:29:38,479 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-26 10:29:38,480 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1512709381] [2021-03-26 10:29:38,480 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-03-26 10:29:38,480 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 10:29:38,481 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-03-26 10:29:38,481 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-03-26 10:29:38,482 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 74 out of 99 [2021-03-26 10:29:38,483 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 27 places, 14 transitions, 73 flow. Second operand has 5 states, 5 states have (on average 74.8) internal successors, (374), 5 states have internal predecessors, (374), 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) [2021-03-26 10:29:38,483 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 10:29:38,483 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 74 of 99 [2021-03-26 10:29:38,483 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 10:29:38,504 INFO L129 PetriNetUnfolder]: 0/17 cut-off events. [2021-03-26 10:29:38,504 INFO L130 PetriNetUnfolder]: For 24/26 co-relation queries the response was YES. [2021-03-26 10:29:38,504 INFO L84 FinitePrefix]: Finished finitePrefix Result has 57 conditions, 17 events. 0/17 cut-off events. For 24/26 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 17 event pairs, 0 based on Foata normal form. 1/18 useless extension candidates. Maximal degree in co-relation 0. Up to 6 conditions per place. [2021-03-26 10:29:38,505 INFO L132 encePairwiseOnDemand]: 94/99 looper letters, 2 selfloop transitions, 3 changer transitions 2/14 dead transitions. [2021-03-26 10:29:38,505 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 30 places, 14 transitions, 87 flow [2021-03-26 10:29:38,505 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-03-26 10:29:38,505 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-03-26 10:29:38,507 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 304 transitions. [2021-03-26 10:29:38,507 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7676767676767676 [2021-03-26 10:29:38,507 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 304 transitions. [2021-03-26 10:29:38,507 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 304 transitions. [2021-03-26 10:29:38,507 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 10:29:38,508 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 304 transitions. [2021-03-26 10:29:38,508 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 76.0) internal successors, (304), 4 states have internal predecessors, (304), 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) [2021-03-26 10:29:38,510 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 99.0) internal successors, (495), 5 states have internal predecessors, (495), 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) [2021-03-26 10:29:38,510 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 99.0) internal successors, (495), 5 states have internal predecessors, (495), 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) [2021-03-26 10:29:38,510 INFO L185 Difference]: Start difference. First operand has 27 places, 14 transitions, 73 flow. Second operand 4 states and 304 transitions. [2021-03-26 10:29:38,511 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 30 places, 14 transitions, 87 flow [2021-03-26 10:29:38,512 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 25 places, 14 transitions, 72 flow, removed 2 selfloop flow, removed 5 redundant places. [2021-03-26 10:29:38,513 INFO L241 Difference]: Finished difference. Result has 26 places, 12 transitions, 58 flow [2021-03-26 10:29:38,513 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=99, PETRI_DIFFERENCE_MINUEND_FLOW=58, PETRI_DIFFERENCE_MINUEND_PLACES=22, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=14, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=11, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=58, PETRI_PLACES=26, PETRI_TRANSITIONS=12} [2021-03-26 10:29:38,513 INFO L343 CegarLoopForPetriNet]: 22 programPoint places, 4 predicate places. [2021-03-26 10:29:38,513 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 10:29:38,514 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 26 places, 12 transitions, 58 flow [2021-03-26 10:29:38,514 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 26 places, 12 transitions, 58 flow [2021-03-26 10:29:38,514 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 26 places, 12 transitions, 58 flow [2021-03-26 10:29:38,517 INFO L129 PetriNetUnfolder]: 0/12 cut-off events. [2021-03-26 10:29:38,517 INFO L130 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2021-03-26 10:29:38,517 INFO L84 FinitePrefix]: Finished finitePrefix Result has 38 conditions, 12 events. 0/12 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 5 event pairs, 0 based on Foata normal form. 0/12 useless extension candidates. Maximal degree in co-relation 0. Up to 4 conditions per place. [2021-03-26 10:29:38,518 INFO L142 LiptonReduction]: Number of co-enabled transitions 24 [2021-03-26 10:29:38,557 INFO L154 LiptonReduction]: Checked pairs total: 26 [2021-03-26 10:29:38,557 INFO L156 LiptonReduction]: Total number of compositions: 2 [2021-03-26 10:29:38,558 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 45 [2021-03-26 10:29:38,562 INFO L480 AbstractCegarLoop]: Abstraction has has 24 places, 10 transitions, 54 flow [2021-03-26 10:29:38,562 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 74.8) internal successors, (374), 5 states have internal predecessors, (374), 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) [2021-03-26 10:29:38,562 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 10:29:38,563 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 10:29:38,563 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-03-26 10:29:38,563 INFO L428 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-26 10:29:38,563 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 10:29:38,563 INFO L82 PathProgramCache]: Analyzing trace with hash 1386547245, now seen corresponding path program 1 times [2021-03-26 10:29:38,563 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 10:29:38,563 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2090653693] [2021-03-26 10:29:38,564 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 10:29:38,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 10:29:38,612 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:29:38,612 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 10:29:38,615 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:29:38,616 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 10:29:38,619 INFO L142 QuantifierPusher]: treesize reduction 3, result has 75.0 percent of original size [2021-03-26 10:29:38,620 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-26 10:29:38,626 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 10:29:38,626 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2090653693] [2021-03-26 10:29:38,627 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 10:29:38,627 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-26 10:29:38,627 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1693225593] [2021-03-26 10:29:38,627 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-03-26 10:29:38,627 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 10:29:38,628 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-03-26 10:29:38,628 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-03-26 10:29:38,629 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 74 out of 101 [2021-03-26 10:29:38,630 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 24 places, 10 transitions, 54 flow. Second operand has 5 states, 5 states have (on average 74.8) internal successors, (374), 5 states have internal predecessors, (374), 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) [2021-03-26 10:29:38,630 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 10:29:38,630 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 74 of 101 [2021-03-26 10:29:38,630 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 10:29:38,640 INFO L129 PetriNetUnfolder]: 0/9 cut-off events. [2021-03-26 10:29:38,640 INFO L130 PetriNetUnfolder]: For 11/11 co-relation queries the response was YES. [2021-03-26 10:29:38,640 INFO L84 FinitePrefix]: Finished finitePrefix Result has 35 conditions, 9 events. 0/9 cut-off events. For 11/11 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 3 event pairs, 0 based on Foata normal form. 1/10 useless extension candidates. Maximal degree in co-relation 0. Up to 3 conditions per place. [2021-03-26 10:29:38,641 INFO L132 encePairwiseOnDemand]: 98/101 looper letters, 0 selfloop transitions, 0 changer transitions 9/9 dead transitions. [2021-03-26 10:29:38,641 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 26 places, 9 transitions, 50 flow [2021-03-26 10:29:38,641 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-03-26 10:29:38,641 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-03-26 10:29:38,642 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 300 transitions. [2021-03-26 10:29:38,642 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7425742574257426 [2021-03-26 10:29:38,642 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 300 transitions. [2021-03-26 10:29:38,642 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 300 transitions. [2021-03-26 10:29:38,642 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 10:29:38,642 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 300 transitions. [2021-03-26 10:29:38,643 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 75.0) internal successors, (300), 4 states have internal predecessors, (300), 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) [2021-03-26 10:29:38,644 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 101.0) internal successors, (505), 5 states have internal predecessors, (505), 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) [2021-03-26 10:29:38,645 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 101.0) internal successors, (505), 5 states have internal predecessors, (505), 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) [2021-03-26 10:29:38,645 INFO L185 Difference]: Start difference. First operand has 24 places, 10 transitions, 54 flow. Second operand 4 states and 300 transitions. [2021-03-26 10:29:38,645 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 26 places, 9 transitions, 50 flow [2021-03-26 10:29:38,645 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 17 places, 9 transitions, 28 flow, removed 3 selfloop flow, removed 9 redundant places. [2021-03-26 10:29:38,646 INFO L241 Difference]: Finished difference. Result has 17 places, 0 transitions, 0 flow [2021-03-26 10:29:38,646 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=101, PETRI_DIFFERENCE_MINUEND_FLOW=22, PETRI_DIFFERENCE_MINUEND_PLACES=14, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=9, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=9, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=0, PETRI_PLACES=17, PETRI_TRANSITIONS=0} [2021-03-26 10:29:38,646 INFO L343 CegarLoopForPetriNet]: 22 programPoint places, -5 predicate places. [2021-03-26 10:29:38,646 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 10:29:38,646 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 17 places, 0 transitions, 0 flow [2021-03-26 10:29:38,646 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 17 places, 0 transitions, 0 flow [2021-03-26 10:29:38,647 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 0 places, 0 transitions, 0 flow [2021-03-26 10:29:38,647 INFO L129 PetriNetUnfolder]: 0/0 cut-off events. [2021-03-26 10:29:38,647 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 10:29:38,647 INFO L84 FinitePrefix]: Finished finitePrefix Result has 0 conditions, 0 events. 0/0 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 0. Compared 0 event pairs, 0 based on Foata normal form. 0/0 useless extension candidates. Maximal degree in co-relation 0. Up to 0 conditions per place. [2021-03-26 10:29:38,648 INFO L142 LiptonReduction]: Number of co-enabled transitions 0 [2021-03-26 10:29:38,648 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-26 10:29:38,648 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 10:29:38,648 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 2 [2021-03-26 10:29:38,650 INFO L480 AbstractCegarLoop]: Abstraction has has 0 places, 0 transitions, 0 flow [2021-03-26 10:29:38,651 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 74.8) internal successors, (374), 5 states have internal predecessors, (374), 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) [2021-03-26 10:29:38,651 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-03-26 10:29:38,655 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.03 10:29:38 BasicIcfg [2021-03-26 10:29:38,655 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-03-26 10:29:38,656 INFO L168 Benchmark]: Toolchain (without parser) took 4043.95 ms. Allocated memory was 255.9 MB in the beginning and 457.2 MB in the end (delta: 201.3 MB). Free memory was 234.6 MB in the beginning and 291.1 MB in the end (delta: -56.5 MB). Peak memory consumption was 144.4 MB. Max. memory is 16.0 GB. [2021-03-26 10:29:38,658 INFO L168 Benchmark]: CDTParser took 0.15 ms. Allocated memory is still 255.9 MB. Free memory was 237.8 MB in the beginning and 237.6 MB in the end (delta: 178.3 kB). There was no memory consumed. Max. memory is 16.0 GB. [2021-03-26 10:29:38,660 INFO L168 Benchmark]: CACSL2BoogieTranslator took 467.23 ms. Allocated memory was 255.9 MB in the beginning and 379.6 MB in the end (delta: 123.7 MB). Free memory was 234.6 MB in the beginning and 343.5 MB in the end (delta: -108.9 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.0 GB. [2021-03-26 10:29:38,663 INFO L168 Benchmark]: Boogie Procedure Inliner took 53.36 ms. Allocated memory is still 379.6 MB. Free memory was 343.5 MB in the beginning and 342.0 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-03-26 10:29:38,663 INFO L168 Benchmark]: Boogie Preprocessor took 31.59 ms. Allocated memory is still 379.6 MB. Free memory was 342.0 MB in the beginning and 340.7 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-03-26 10:29:38,663 INFO L168 Benchmark]: RCFGBuilder took 418.70 ms. Allocated memory is still 379.6 MB. Free memory was 340.7 MB in the beginning and 320.4 MB in the end (delta: 20.2 MB). Peak memory consumption was 18.9 MB. Max. memory is 16.0 GB. [2021-03-26 10:29:38,664 INFO L168 Benchmark]: TraceAbstraction took 3068.09 ms. Allocated memory was 379.6 MB in the beginning and 457.2 MB in the end (delta: 77.6 MB). Free memory was 320.4 MB in the beginning and 291.1 MB in the end (delta: 29.4 MB). Peak memory consumption was 110.0 MB. Max. memory is 16.0 GB. [2021-03-26 10:29:38,666 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15 ms. Allocated memory is still 255.9 MB. Free memory was 237.8 MB in the beginning and 237.6 MB in the end (delta: 178.3 kB). There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 467.23 ms. Allocated memory was 255.9 MB in the beginning and 379.6 MB in the end (delta: 123.7 MB). Free memory was 234.6 MB in the beginning and 343.5 MB in the end (delta: -108.9 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 53.36 ms. Allocated memory is still 379.6 MB. Free memory was 343.5 MB in the beginning and 342.0 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 31.59 ms. Allocated memory is still 379.6 MB. Free memory was 342.0 MB in the beginning and 340.7 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * RCFGBuilder took 418.70 ms. Allocated memory is still 379.6 MB. Free memory was 340.7 MB in the beginning and 320.4 MB in the end (delta: 20.2 MB). Peak memory consumption was 18.9 MB. Max. memory is 16.0 GB. * TraceAbstraction took 3068.09 ms. Allocated memory was 379.6 MB in the beginning and 457.2 MB in the end (delta: 77.6 MB). Free memory was 320.4 MB in the beginning and 291.1 MB in the end (delta: 29.4 MB). Peak memory consumption was 110.0 MB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 1243.0ms, 55 PlacesBefore, 22 PlacesAfterwards, 49 TransitionsBefore, 15 TransitionsAfterwards, 456 CoEnabledTransitionPairs, 5 FixpointIterations, 15 TrivialSequentialCompositions, 18 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 1 ChoiceCompositions, 34 TotalNumberOfCompositions, 608 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 422, positive: 390, positive conditional: 390, positive unconditional: 0, negative: 32, negative conditional: 32, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 422, positive: 390, positive conditional: 0, positive unconditional: 390, negative: 32, negative conditional: 0, negative unconditional: 32, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 422, positive: 390, positive conditional: 0, positive unconditional: 390, negative: 32, negative conditional: 0, negative unconditional: 32, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 333, positive: 314, positive conditional: 0, positive unconditional: 314, negative: 19, negative conditional: 0, negative unconditional: 19, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 333, positive: 314, positive conditional: 0, positive unconditional: 314, negative: 19, negative conditional: 0, negative unconditional: 19, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 19, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 19, negative conditional: 0, negative unconditional: 19, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 78, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 78, negative conditional: 0, negative unconditional: 78, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 422, positive: 76, positive conditional: 0, positive unconditional: 76, negative: 13, negative conditional: 0, negative unconditional: 13, unknown: 333, unknown conditional: 0, unknown unconditional: 333] , Statistics on independence cache: Total cache size (in pairs): 333, Positive cache size: 314, Positive conditional cache size: 0, Positive unconditional cache size: 314, Negative cache size: 19, Negative conditional cache size: 0, Negative unconditional cache size: 19, Eliminated conditions: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 736.6ms, 23 PlacesBefore, 20 PlacesAfterwards, 17 TransitionsBefore, 14 TransitionsAfterwards, 68 CoEnabledTransitionPairs, 3 FixpointIterations, 2 TrivialSequentialCompositions, 1 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 3 TotalNumberOfCompositions, 136 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 66, positive: 47, positive conditional: 47, positive unconditional: 0, negative: 19, negative conditional: 19, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 66, positive: 47, positive conditional: 0, positive unconditional: 47, negative: 19, negative conditional: 0, negative unconditional: 19, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 66, positive: 47, positive conditional: 0, positive unconditional: 47, negative: 19, negative conditional: 0, negative unconditional: 19, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 17, positive: 13, positive conditional: 0, positive unconditional: 13, negative: 4, negative conditional: 0, negative unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 17, positive: 11, positive conditional: 0, positive unconditional: 11, negative: 6, negative conditional: 0, negative unconditional: 6, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 6, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 4, negative conditional: 0, negative unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 26, positive: 10, positive conditional: 0, positive unconditional: 10, negative: 16, negative conditional: 0, negative unconditional: 16, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 66, positive: 34, positive conditional: 0, positive unconditional: 34, negative: 15, negative conditional: 0, negative unconditional: 15, unknown: 17, unknown conditional: 0, unknown unconditional: 17] , Statistics on independence cache: Total cache size (in pairs): 350, Positive cache size: 327, Positive conditional cache size: 0, Positive unconditional cache size: 327, Negative cache size: 23, Negative conditional cache size: 0, Negative unconditional cache size: 23, Eliminated conditions: 2 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 6.8ms, 26 PlacesBefore, 26 PlacesAfterwards, 16 TransitionsBefore, 16 TransitionsAfterwards, 58 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 55 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 26, positive: 19, positive conditional: 19, positive unconditional: 0, negative: 7, negative conditional: 7, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 26, positive: 19, positive conditional: 0, positive unconditional: 19, negative: 7, negative conditional: 0, negative unconditional: 7, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 26, positive: 19, positive conditional: 0, positive unconditional: 19, negative: 7, negative conditional: 0, negative unconditional: 7, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 2, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 2, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 26, positive: 17, positive conditional: 0, positive unconditional: 17, negative: 7, negative conditional: 0, negative unconditional: 7, unknown: 2, unknown conditional: 0, unknown unconditional: 2] , Statistics on independence cache: Total cache size (in pairs): 352, Positive cache size: 329, Positive conditional cache size: 0, Positive unconditional cache size: 329, Negative cache size: 23, Negative conditional cache size: 0, Negative unconditional cache size: 23, Eliminated conditions: 7 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 31.5ms, 28 PlacesBefore, 27 PlacesAfterwards, 14 TransitionsBefore, 14 TransitionsAfterwards, 50 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 1 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, 81 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 46, positive: 35, positive conditional: 35, positive unconditional: 0, negative: 11, negative conditional: 11, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 46, positive: 35, positive conditional: 0, positive unconditional: 35, negative: 11, negative conditional: 0, negative unconditional: 11, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 46, positive: 35, positive conditional: 0, positive unconditional: 35, negative: 11, negative conditional: 0, negative unconditional: 11, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 6, positive: 4, positive conditional: 0, positive unconditional: 4, negative: 2, negative conditional: 0, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 6, positive: 4, positive conditional: 0, positive unconditional: 4, negative: 2, negative conditional: 0, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 2, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 2, negative conditional: 0, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 4, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 4, negative conditional: 0, negative unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 46, positive: 31, positive conditional: 0, positive unconditional: 31, negative: 9, negative conditional: 0, negative unconditional: 9, unknown: 6, unknown conditional: 0, unknown unconditional: 6] , Statistics on independence cache: Total cache size (in pairs): 358, Positive cache size: 333, Positive conditional cache size: 0, Positive unconditional cache size: 333, Negative cache size: 25, Negative conditional cache size: 0, Negative unconditional cache size: 25, Eliminated conditions: 18 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 43.8ms, 26 PlacesBefore, 24 PlacesAfterwards, 12 TransitionsBefore, 10 TransitionsAfterwards, 24 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 2 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 2 TotalNumberOfCompositions, 26 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 18, positive: 13, positive conditional: 13, positive unconditional: 0, negative: 5, negative conditional: 5, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 18, positive: 13, positive conditional: 0, positive unconditional: 13, negative: 5, negative conditional: 0, negative unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 18, positive: 13, positive conditional: 0, positive unconditional: 13, negative: 5, negative conditional: 0, negative unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 3, positive: 3, positive conditional: 0, positive unconditional: 3, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 3, positive: 3, positive conditional: 0, positive unconditional: 3, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 18, positive: 10, positive conditional: 0, positive unconditional: 10, negative: 5, negative conditional: 0, negative unconditional: 5, unknown: 3, unknown conditional: 0, unknown unconditional: 3] , Statistics on independence cache: Total cache size (in pairs): 361, Positive cache size: 336, Positive conditional cache size: 0, Positive unconditional cache size: 336, Negative cache size: 25, Negative conditional cache size: 0, Negative unconditional cache size: 25, Eliminated conditions: 3 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 1.3ms, 17 PlacesBefore, 0 PlacesAfterwards, 0 TransitionsBefore, 0 TransitionsAfterwards, 0 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 361, Positive cache size: 336, Positive conditional cache size: 0, Positive unconditional cache size: 336, Negative cache size: 25, Negative conditional cache size: 0, Negative unconditional cache size: 25, Eliminated conditions: 0 - PositiveResult [Line: 18]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 60 locations, 1 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 8.6ms, RemoveRedundantFlowTime: 0.0ms, RemoveRedundantFlowUnfoldingTime: 0.0ms, BackfoldingTime: 0.0ms, BackfoldingUnfoldingTime: 0.0ms, FlowIncreaseByBackfolding: 0, BasicCegarLoop: VerificationResult: SAFE, OverallTime: 2979.0ms, OverallIterations: 5, TraceHistogramMax: 1, EmptinessCheckTime: 0.0ms, AutomataDifference: 219.2ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 1310.8ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 21 SDtfs, 10 SDslu, 4 SDs, 0 SdLazy, 26 SolverSat, 10 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 26.0ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 16 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 58.1ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=78occurred in iteration=2, InterpolantAutomatonStates: 19, 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: 16.2ms SsaConstructionTime, 116.2ms SatisfiabilityAnalysisTime, 304.5ms InterpolantComputationTime, 43 NumberOfCodeBlocks, 43 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 38 ConstructedInterpolants, 0 QuantifiedInterpolants, 182 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 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 - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! Received shutdown request...