/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-NoLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-wmm/safe006_pso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-7cd14b8b9f04096d8ddfd3d9cd8a4ac590fe5404-7cd14b8 [2021-03-11 02:31:26,082 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-03-11 02:31:26,084 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-03-11 02:31:26,113 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-03-11 02:31:26,157 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-03-11 02:31:26,157 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-03-11 02:31:26,157 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-03-11 02:31:26,158 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-NoLbe.epf [2021-03-11 02:31:26,185 INFO L113 SettingsManager]: Loading preferences was successful [2021-03-11 02:31:26,185 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-03-11 02:31:26,187 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-03-11 02:31:26,187 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-03-11 02:31:26,187 INFO L138 SettingsManager]: * Use SBE=true [2021-03-11 02:31:26,188 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-03-11 02:31:26,188 INFO L138 SettingsManager]: * sizeof long=4 [2021-03-11 02:31:26,188 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-03-11 02:31:26,188 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-03-11 02:31:26,188 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-03-11 02:31:26,189 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-03-11 02:31:26,189 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-03-11 02:31:26,189 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-03-11 02:31:26,189 INFO L138 SettingsManager]: * sizeof long double=12 [2021-03-11 02:31:26,189 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-03-11 02:31:26,189 INFO L138 SettingsManager]: * Use constant arrays=true [2021-03-11 02:31:26,190 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-03-11 02:31:26,190 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-03-11 02:31:26,190 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-03-11 02:31:26,190 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-03-11 02:31:26,190 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-03-11 02:31:26,190 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-03-11 02:31:26,190 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-03-11 02:31:26,191 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-03-11 02:31:26,191 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-03-11 02:31:26,191 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-03-11 02:31:26,191 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-03-11 02:31:26,191 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-03-11 02:31:26,191 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-03-11 02:31:26,191 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-03-11 02:31:26,437 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-03-11 02:31:26,451 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-03-11 02:31:26,453 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-03-11 02:31:26,454 INFO L271 PluginConnector]: Initializing CDTParser... [2021-03-11 02:31:26,454 INFO L275 PluginConnector]: CDTParser initialized [2021-03-11 02:31:26,455 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe006_pso.opt.i [2021-03-11 02:31:26,510 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c8dd5dab3/58e6722571734e4696a59c93a416e072/FLAG326e2fcf3 [2021-03-11 02:31:26,971 INFO L306 CDTParser]: Found 1 translation units. [2021-03-11 02:31:26,972 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe006_pso.opt.i [2021-03-11 02:31:26,984 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c8dd5dab3/58e6722571734e4696a59c93a416e072/FLAG326e2fcf3 [2021-03-11 02:31:27,474 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c8dd5dab3/58e6722571734e4696a59c93a416e072 [2021-03-11 02:31:27,476 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-03-11 02:31:27,479 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-03-11 02:31:27,482 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-03-11 02:31:27,482 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-03-11 02:31:27,486 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-03-11 02:31:27,487 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.03 02:31:27" (1/1) ... [2021-03-11 02:31:27,488 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@52302109 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 02:31:27, skipping insertion in model container [2021-03-11 02:31:27,488 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.03 02:31:27" (1/1) ... [2021-03-11 02:31:27,492 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-03-11 02:31:27,525 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-03-11 02:31:27,613 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_pso.opt.i[949,962] [2021-03-11 02:31:27,783 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-03-11 02:31:27,790 INFO L203 MainTranslator]: Completed pre-run [2021-03-11 02:31:27,798 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_pso.opt.i[949,962] [2021-03-11 02:31:27,824 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-03-11 02:31:27,876 INFO L208 MainTranslator]: Completed translation [2021-03-11 02:31:27,876 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 02:31:27 WrapperNode [2021-03-11 02:31:27,877 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-03-11 02:31:27,878 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-03-11 02:31:27,878 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-03-11 02:31:27,878 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-03-11 02:31:27,883 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 02:31:27" (1/1) ... [2021-03-11 02:31:27,907 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 02:31:27" (1/1) ... [2021-03-11 02:31:27,921 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-03-11 02:31:27,922 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-03-11 02:31:27,922 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-03-11 02:31:27,922 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-03-11 02:31:27,927 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 02:31:27" (1/1) ... [2021-03-11 02:31:27,927 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 02:31:27" (1/1) ... [2021-03-11 02:31:27,930 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 02:31:27" (1/1) ... [2021-03-11 02:31:27,931 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 02:31:27" (1/1) ... [2021-03-11 02:31:27,946 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 02:31:27" (1/1) ... [2021-03-11 02:31:27,947 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 02:31:27" (1/1) ... [2021-03-11 02:31:27,948 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 02:31:27" (1/1) ... [2021-03-11 02:31:27,949 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-03-11 02:31:27,953 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-03-11 02:31:27,953 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-03-11 02:31:27,953 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-03-11 02:31:27,954 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 02:31:27" (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 [2021-03-11 02:31:28,024 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-03-11 02:31:28,024 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-03-11 02:31:28,025 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-03-11 02:31:28,025 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-03-11 02:31:28,025 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2021-03-11 02:31:28,026 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2021-03-11 02:31:28,026 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2021-03-11 02:31:28,026 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2021-03-11 02:31:28,026 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-03-11 02:31:28,026 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-03-11 02:31:28,026 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-03-11 02:31:28,027 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-03-11 02:31:28,028 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-03-11 02:31:28,272 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-03-11 02:31:28,272 INFO L299 CfgBuilder]: Removed 8 assume(true) statements. [2021-03-11 02:31:28,273 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.03 02:31:28 BoogieIcfgContainer [2021-03-11 02:31:28,273 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-03-11 02:31:28,274 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-03-11 02:31:28,274 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-03-11 02:31:28,276 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-03-11 02:31:28,276 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.03 02:31:27" (1/3) ... [2021-03-11 02:31:28,277 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1c2ff71a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.03 02:31:28, skipping insertion in model container [2021-03-11 02:31:28,277 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 02:31:27" (2/3) ... [2021-03-11 02:31:28,277 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1c2ff71a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.03 02:31:28, skipping insertion in model container [2021-03-11 02:31:28,277 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.03 02:31:28" (3/3) ... [2021-03-11 02:31:28,278 INFO L111 eAbstractionObserver]: Analyzing ICFG safe006_pso.opt.i [2021-03-11 02:31:28,281 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-03-11 02:31:28,284 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-03-11 02:31:28,285 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-03-11 02:31:28,304 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:31:28,304 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:31:28,304 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:31:28,304 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:31:28,305 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:31:28,305 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:31:28,305 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:31:28,305 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:31:28,305 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:31:28,305 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:31:28,305 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:31:28,305 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:31:28,306 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:31:28,306 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:31:28,306 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:31:28,306 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:31:28,306 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:31:28,306 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:31:28,306 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:31:28,306 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:31:28,306 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:31:28,307 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:31:28,307 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:31:28,307 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:31:28,308 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:31:28,308 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:31:28,308 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:31:28,308 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:31:28,311 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:31:28,311 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:31:28,312 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:31:28,312 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:31:28,313 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-03-11 02:31:28,324 INFO L253 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-03-11 02:31:28,336 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-03-11 02:31:28,337 INFO L377 AbstractCegarLoop]: Hoare is false [2021-03-11 02:31:28,337 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-03-11 02:31:28,337 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-03-11 02:31:28,337 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-03-11 02:31:28,337 INFO L381 AbstractCegarLoop]: Difference is false [2021-03-11 02:31:28,337 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-03-11 02:31:28,337 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-03-11 02:31:28,343 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 66 places, 61 transitions, 132 flow [2021-03-11 02:31:28,363 INFO L129 PetriNetUnfolder]: 2/59 cut-off events. [2021-03-11 02:31:28,363 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-11 02:31:28,365 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. [2021-03-11 02:31:28,365 INFO L82 GeneralOperation]: Start removeDead. Operand has 66 places, 61 transitions, 132 flow [2021-03-11 02:31:28,368 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 55 places, 49 transitions, 104 flow [2021-03-11 02:31:28,376 INFO L129 PetriNetUnfolder]: 1/48 cut-off events. [2021-03-11 02:31:28,376 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-11 02:31:28,377 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-11 02:31:28,377 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 02:31:28,377 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-11 02:31:28,380 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 02:31:28,381 INFO L82 PathProgramCache]: Analyzing trace with hash -894398438, now seen corresponding path program 1 times [2021-03-11 02:31:28,388 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 02:31:28,389 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [429564169] [2021-03-11 02:31:28,389 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 02:31:28,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 02:31:28,630 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:31:28,631 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 02:31:28,632 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:31:28,632 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-11 02:31:28,645 INFO L142 QuantifierPusher]: treesize reduction 3, result has 75.0 percent of original size [2021-03-11 02:31:28,648 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-11 02:31:28,659 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-03-11 02:31:28,661 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-11 02:31:28,678 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:31:28,678 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-11 02:31:28,689 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:31:28,690 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-11 02:31:28,714 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:31:28,715 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 02:31:28,716 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 02:31:28,717 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [429564169] [2021-03-11 02:31:28,717 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 02:31:28,717 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-11 02:31:28,717 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [579327460] [2021-03-11 02:31:28,722 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-11 02:31:28,722 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 02:31:28,732 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-11 02:31:28,741 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-03-11 02:31:28,745 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 47 out of 61 [2021-03-11 02:31:28,747 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 55 places, 49 transitions, 104 flow. Second operand has 7 states, 7 states have (on average 48.142857142857146) internal successors, (337), 7 states have internal predecessors, (337), 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) [2021-03-11 02:31:28,748 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-11 02:31:28,748 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 47 of 61 [2021-03-11 02:31:28,748 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-11 02:31:28,919 INFO L129 PetriNetUnfolder]: 20/107 cut-off events. [2021-03-11 02:31:28,919 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-11 02:31:28,920 INFO L84 FinitePrefix]: Finished finitePrefix Result has 167 conditions, 107 events. 20/107 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 302 event pairs, 5 based on Foata normal form. 6/110 useless extension candidates. Maximal degree in co-relation 139. Up to 19 conditions per place. [2021-03-11 02:31:28,922 INFO L132 encePairwiseOnDemand]: 54/61 looper letters, 9 selfloop transitions, 2 changer transitions 16/65 dead transitions. [2021-03-11 02:31:28,922 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 63 places, 65 transitions, 190 flow [2021-03-11 02:31:28,923 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-03-11 02:31:28,924 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-03-11 02:31:28,932 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 454 transitions. [2021-03-11 02:31:28,938 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.8269581056466302 [2021-03-11 02:31:28,938 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 454 transitions. [2021-03-11 02:31:28,939 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 454 transitions. [2021-03-11 02:31:28,941 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-11 02:31:28,943 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 454 transitions. [2021-03-11 02:31:28,946 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 50.44444444444444) internal successors, (454), 9 states have internal predecessors, (454), 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) [2021-03-11 02:31:28,951 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 61.0) internal successors, (610), 10 states have internal predecessors, (610), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 02:31:28,951 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 61.0) internal successors, (610), 10 states have internal predecessors, (610), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 02:31:28,952 INFO L185 Difference]: Start difference. First operand has 55 places, 49 transitions, 104 flow. Second operand 9 states and 454 transitions. [2021-03-11 02:31:28,953 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 63 places, 65 transitions, 190 flow [2021-03-11 02:31:28,954 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 61 places, 65 transitions, 188 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-03-11 02:31:28,956 INFO L241 Difference]: Finished difference. Result has 68 places, 48 transitions, 120 flow [2021-03-11 02:31:28,957 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=61, PETRI_DIFFERENCE_MINUEND_FLOW=100, PETRI_DIFFERENCE_MINUEND_PLACES=53, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=48, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=46, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=120, PETRI_PLACES=68, PETRI_TRANSITIONS=48} [2021-03-11 02:31:28,958 INFO L335 CegarLoopForPetriNet]: 55 programPoint places, 13 predicate places. [2021-03-11 02:31:28,958 INFO L480 AbstractCegarLoop]: Abstraction has has 68 places, 48 transitions, 120 flow [2021-03-11 02:31:28,958 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 48.142857142857146) internal successors, (337), 7 states have internal predecessors, (337), 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) [2021-03-11 02:31:28,958 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-11 02:31:28,958 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 02:31:28,958 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-03-11 02:31:28,958 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-11 02:31:28,959 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 02:31:28,959 INFO L82 PathProgramCache]: Analyzing trace with hash -1574208101, now seen corresponding path program 1 times [2021-03-11 02:31:28,959 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 02:31:28,959 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1310029112] [2021-03-11 02:31:28,959 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 02:31:28,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 02:31:28,992 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:31:28,992 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 02:31:28,993 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:31:28,993 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-11 02:31:28,996 INFO L142 QuantifierPusher]: treesize reduction 3, result has 75.0 percent of original size [2021-03-11 02:31:28,997 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-11 02:31:29,002 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-03-11 02:31:29,003 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-11 02:31:29,017 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:31:29,018 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-11 02:31:29,024 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:31:29,025 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-11 02:31:29,032 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:31:29,033 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 02:31:29,033 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 02:31:29,033 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1310029112] [2021-03-11 02:31:29,033 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 02:31:29,033 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-11 02:31:29,034 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [25414122] [2021-03-11 02:31:29,034 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-11 02:31:29,034 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 02:31:29,035 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-11 02:31:29,035 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-03-11 02:31:29,036 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 47 out of 61 [2021-03-11 02:31:29,036 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 68 places, 48 transitions, 120 flow. Second operand has 7 states, 7 states have (on average 48.285714285714285) internal successors, (338), 7 states have internal predecessors, (338), 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) [2021-03-11 02:31:29,036 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-11 02:31:29,036 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 47 of 61 [2021-03-11 02:31:29,036 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-11 02:31:29,131 INFO L129 PetriNetUnfolder]: 4/77 cut-off events. [2021-03-11 02:31:29,132 INFO L130 PetriNetUnfolder]: For 20/22 co-relation queries the response was YES. [2021-03-11 02:31:29,132 INFO L84 FinitePrefix]: Finished finitePrefix Result has 135 conditions, 77 events. 4/77 cut-off events. For 20/22 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 130 event pairs, 0 based on Foata normal form. 2/77 useless extension candidates. Maximal degree in co-relation 120. Up to 9 conditions per place. [2021-03-11 02:31:29,132 INFO L132 encePairwiseOnDemand]: 54/61 looper letters, 8 selfloop transitions, 3 changer transitions 10/59 dead transitions. [2021-03-11 02:31:29,132 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 71 places, 59 transitions, 205 flow [2021-03-11 02:31:29,133 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-03-11 02:31:29,133 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-03-11 02:31:29,134 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 493 transitions. [2021-03-11 02:31:29,134 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.8081967213114755 [2021-03-11 02:31:29,134 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 493 transitions. [2021-03-11 02:31:29,134 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 493 transitions. [2021-03-11 02:31:29,135 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-11 02:31:29,135 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 493 transitions. [2021-03-11 02:31:29,136 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 49.3) internal successors, (493), 10 states have internal predecessors, (493), 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) [2021-03-11 02:31:29,137 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 61.0) internal successors, (671), 11 states have internal predecessors, (671), 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) [2021-03-11 02:31:29,137 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 61.0) internal successors, (671), 11 states have internal predecessors, (671), 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) [2021-03-11 02:31:29,137 INFO L185 Difference]: Start difference. First operand has 68 places, 48 transitions, 120 flow. Second operand 10 states and 493 transitions. [2021-03-11 02:31:29,137 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 71 places, 59 transitions, 205 flow [2021-03-11 02:31:29,138 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 63 places, 59 transitions, 171 flow, removed 14 selfloop flow, removed 8 redundant places. [2021-03-11 02:31:29,139 INFO L241 Difference]: Finished difference. Result has 70 places, 48 transitions, 126 flow [2021-03-11 02:31:29,139 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=61, PETRI_DIFFERENCE_MINUEND_FLOW=104, PETRI_DIFFERENCE_MINUEND_PLACES=54, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=48, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=45, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=126, PETRI_PLACES=70, PETRI_TRANSITIONS=48} [2021-03-11 02:31:29,140 INFO L335 CegarLoopForPetriNet]: 55 programPoint places, 15 predicate places. [2021-03-11 02:31:29,140 INFO L480 AbstractCegarLoop]: Abstraction has has 70 places, 48 transitions, 126 flow [2021-03-11 02:31:29,140 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 48.285714285714285) internal successors, (338), 7 states have internal predecessors, (338), 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) [2021-03-11 02:31:29,140 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-11 02:31:29,140 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 02:31:29,140 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-03-11 02:31:29,140 INFO L428 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-11 02:31:29,141 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 02:31:29,141 INFO L82 PathProgramCache]: Analyzing trace with hash 1364973306, now seen corresponding path program 1 times [2021-03-11 02:31:29,141 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 02:31:29,141 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2112461661] [2021-03-11 02:31:29,141 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 02:31:29,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 02:31:29,169 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:31:29,170 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 02:31:29,170 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:31:29,170 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-11 02:31:29,173 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:31:29,173 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-11 02:31:29,177 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-03-11 02:31:29,177 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-11 02:31:29,190 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:31:29,190 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-11 02:31:29,198 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:31:29,203 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-11 02:31:29,213 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:31:29,214 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 02:31:29,214 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 02:31:29,214 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2112461661] [2021-03-11 02:31:29,214 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 02:31:29,214 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-11 02:31:29,215 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1656876798] [2021-03-11 02:31:29,215 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-11 02:31:29,215 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 02:31:29,216 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-11 02:31:29,216 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-03-11 02:31:29,217 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 47 out of 61 [2021-03-11 02:31:29,218 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 70 places, 48 transitions, 126 flow. Second operand has 7 states, 7 states have (on average 48.285714285714285) internal successors, (338), 7 states have internal predecessors, (338), 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) [2021-03-11 02:31:29,218 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-11 02:31:29,218 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 47 of 61 [2021-03-11 02:31:29,218 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-11 02:31:29,353 INFO L129 PetriNetUnfolder]: 4/69 cut-off events. [2021-03-11 02:31:29,353 INFO L130 PetriNetUnfolder]: For 24/31 co-relation queries the response was YES. [2021-03-11 02:31:29,354 INFO L84 FinitePrefix]: Finished finitePrefix Result has 135 conditions, 69 events. 4/69 cut-off events. For 24/31 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 113 event pairs, 0 based on Foata normal form. 2/70 useless extension candidates. Maximal degree in co-relation 119. Up to 7 conditions per place. [2021-03-11 02:31:29,354 INFO L132 encePairwiseOnDemand]: 53/61 looper letters, 6 selfloop transitions, 4 changer transitions 13/60 dead transitions. [2021-03-11 02:31:29,354 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 73 places, 60 transitions, 221 flow [2021-03-11 02:31:29,354 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-03-11 02:31:29,354 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-03-11 02:31:29,355 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 494 transitions. [2021-03-11 02:31:29,355 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.8098360655737705 [2021-03-11 02:31:29,355 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 494 transitions. [2021-03-11 02:31:29,356 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 494 transitions. [2021-03-11 02:31:29,356 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-11 02:31:29,356 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 494 transitions. [2021-03-11 02:31:29,357 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 49.4) internal successors, (494), 10 states have internal predecessors, (494), 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) [2021-03-11 02:31:29,358 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 61.0) internal successors, (671), 11 states have internal predecessors, (671), 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) [2021-03-11 02:31:29,359 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 61.0) internal successors, (671), 11 states have internal predecessors, (671), 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) [2021-03-11 02:31:29,359 INFO L185 Difference]: Start difference. First operand has 70 places, 48 transitions, 126 flow. Second operand 10 states and 494 transitions. [2021-03-11 02:31:29,359 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 73 places, 60 transitions, 221 flow [2021-03-11 02:31:29,361 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 64 places, 60 transitions, 185 flow, removed 14 selfloop flow, removed 9 redundant places. [2021-03-11 02:31:29,365 INFO L241 Difference]: Finished difference. Result has 72 places, 47 transitions, 136 flow [2021-03-11 02:31:29,366 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=61, PETRI_DIFFERENCE_MINUEND_FLOW=108, PETRI_DIFFERENCE_MINUEND_PLACES=55, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=48, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=44, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=136, PETRI_PLACES=72, PETRI_TRANSITIONS=47} [2021-03-11 02:31:29,366 INFO L335 CegarLoopForPetriNet]: 55 programPoint places, 17 predicate places. [2021-03-11 02:31:29,366 INFO L480 AbstractCegarLoop]: Abstraction has has 72 places, 47 transitions, 136 flow [2021-03-11 02:31:29,371 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 48.285714285714285) internal successors, (338), 7 states have internal predecessors, (338), 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) [2021-03-11 02:31:29,371 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-11 02:31:29,371 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 02:31:29,371 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-03-11 02:31:29,371 INFO L428 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-11 02:31:29,372 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 02:31:29,372 INFO L82 PathProgramCache]: Analyzing trace with hash 1319952470, now seen corresponding path program 1 times [2021-03-11 02:31:29,372 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 02:31:29,372 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1422843908] [2021-03-11 02:31:29,373 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 02:31:29,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 02:31:29,427 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:31:29,427 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 02:31:29,428 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:31:29,428 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-11 02:31:29,431 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:31:29,431 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-11 02:31:29,435 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-03-11 02:31:29,437 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-11 02:31:29,451 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:31:29,451 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-11 02:31:29,458 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:31:29,459 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-11 02:31:29,467 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:31:29,468 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 02:31:29,469 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 02:31:29,469 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1422843908] [2021-03-11 02:31:29,469 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 02:31:29,469 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-11 02:31:29,469 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1245139567] [2021-03-11 02:31:29,469 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-11 02:31:29,470 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 02:31:29,470 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-11 02:31:29,470 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-03-11 02:31:29,471 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 47 out of 61 [2021-03-11 02:31:29,471 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 72 places, 47 transitions, 136 flow. Second operand has 7 states, 7 states have (on average 48.285714285714285) internal successors, (338), 7 states have internal predecessors, (338), 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) [2021-03-11 02:31:29,471 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-11 02:31:29,472 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 47 of 61 [2021-03-11 02:31:29,472 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-11 02:31:29,579 INFO L129 PetriNetUnfolder]: 4/53 cut-off events. [2021-03-11 02:31:29,579 INFO L130 PetriNetUnfolder]: For 33/36 co-relation queries the response was YES. [2021-03-11 02:31:29,580 INFO L84 FinitePrefix]: Finished finitePrefix Result has 112 conditions, 53 events. 4/53 cut-off events. For 33/36 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 40 event pairs, 0 based on Foata normal form. 2/55 useless extension candidates. Maximal degree in co-relation 99. Up to 5 conditions per place. [2021-03-11 02:31:29,580 INFO L132 encePairwiseOnDemand]: 54/61 looper letters, 0 selfloop transitions, 0 changer transitions 52/52 dead transitions. [2021-03-11 02:31:29,580 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 72 places, 52 transitions, 190 flow [2021-03-11 02:31:29,580 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-03-11 02:31:29,580 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-03-11 02:31:29,581 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 488 transitions. [2021-03-11 02:31:29,581 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.8 [2021-03-11 02:31:29,581 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 488 transitions. [2021-03-11 02:31:29,581 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 488 transitions. [2021-03-11 02:31:29,582 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-11 02:31:29,582 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 488 transitions. [2021-03-11 02:31:29,583 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 48.8) internal successors, (488), 10 states have internal predecessors, (488), 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) [2021-03-11 02:31:29,583 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 61.0) internal successors, (671), 11 states have internal predecessors, (671), 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) [2021-03-11 02:31:29,584 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 61.0) internal successors, (671), 11 states have internal predecessors, (671), 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) [2021-03-11 02:31:29,584 INFO L185 Difference]: Start difference. First operand has 72 places, 47 transitions, 136 flow. Second operand 10 states and 488 transitions. [2021-03-11 02:31:29,584 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 72 places, 52 transitions, 190 flow [2021-03-11 02:31:29,584 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 64 places, 52 transitions, 156 flow, removed 12 selfloop flow, removed 8 redundant places. [2021-03-11 02:31:29,585 INFO L241 Difference]: Finished difference. Result has 64 places, 0 transitions, 0 flow [2021-03-11 02:31:29,585 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=61, PETRI_DIFFERENCE_MINUEND_FLOW=106, PETRI_DIFFERENCE_MINUEND_PLACES=55, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=45, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=45, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=0, PETRI_PLACES=64, PETRI_TRANSITIONS=0} [2021-03-11 02:31:29,585 INFO L335 CegarLoopForPetriNet]: 55 programPoint places, 9 predicate places. [2021-03-11 02:31:29,585 INFO L480 AbstractCegarLoop]: Abstraction has has 64 places, 0 transitions, 0 flow [2021-03-11 02:31:29,585 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 48.285714285714285) internal successors, (338), 7 states have internal predecessors, (338), 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) [2021-03-11 02:31:29,585 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-03-11 02:31:29,589 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.03 02:31:29 BasicIcfg [2021-03-11 02:31:29,589 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-03-11 02:31:29,589 INFO L168 Benchmark]: Toolchain (without parser) took 2112.31 ms. Allocated memory was 255.9 MB in the beginning and 369.1 MB in the end (delta: 113.2 MB). Free memory was 235.3 MB in the beginning and 294.8 MB in the end (delta: -59.4 MB). Peak memory consumption was 53.4 MB. Max. memory is 16.0 GB. [2021-03-11 02:31:29,590 INFO L168 Benchmark]: CDTParser took 0.08 ms. Allocated memory is still 255.9 MB. Free memory is still 238.0 MB. There was no memory consumed. Max. memory is 16.0 GB. [2021-03-11 02:31:29,590 INFO L168 Benchmark]: CACSL2BoogieTranslator took 395.75 ms. Allocated memory was 255.9 MB in the beginning and 369.1 MB in the end (delta: 113.2 MB). Free memory was 234.7 MB in the beginning and 333.2 MB in the end (delta: -98.5 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.0 GB. [2021-03-11 02:31:29,590 INFO L168 Benchmark]: Boogie Procedure Inliner took 43.02 ms. Allocated memory is still 369.1 MB. Free memory was 333.2 MB in the beginning and 331.4 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-03-11 02:31:29,591 INFO L168 Benchmark]: Boogie Preprocessor took 27.41 ms. Allocated memory is still 369.1 MB. Free memory was 331.4 MB in the beginning and 329.9 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-03-11 02:31:29,591 INFO L168 Benchmark]: RCFGBuilder took 320.52 ms. Allocated memory is still 369.1 MB. Free memory was 329.9 MB in the beginning and 350.5 MB in the end (delta: -20.6 MB). Peak memory consumption was 22.5 MB. Max. memory is 16.0 GB. [2021-03-11 02:31:29,591 INFO L168 Benchmark]: TraceAbstraction took 1314.57 ms. Allocated memory is still 369.1 MB. Free memory was 350.5 MB in the beginning and 294.8 MB in the end (delta: 55.7 MB). Peak memory consumption was 56.6 MB. Max. memory is 16.0 GB. [2021-03-11 02:31:29,593 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.08 ms. Allocated memory is still 255.9 MB. Free memory is still 238.0 MB. There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 395.75 ms. Allocated memory was 255.9 MB in the beginning and 369.1 MB in the end (delta: 113.2 MB). Free memory was 234.7 MB in the beginning and 333.2 MB in the end (delta: -98.5 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 43.02 ms. Allocated memory is still 369.1 MB. Free memory was 333.2 MB in the beginning and 331.4 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 27.41 ms. Allocated memory is still 369.1 MB. Free memory was 331.4 MB in the beginning and 329.9 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * RCFGBuilder took 320.52 ms. Allocated memory is still 369.1 MB. Free memory was 329.9 MB in the beginning and 350.5 MB in the end (delta: -20.6 MB). Peak memory consumption was 22.5 MB. Max. memory is 16.0 GB. * TraceAbstraction took 1314.57 ms. Allocated memory is still 369.1 MB. Free memory was 350.5 MB in the beginning and 294.8 MB in the end (delta: 55.7 MB). Peak memory consumption was 56.6 MB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 18]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 60 locations, 1 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 8.3ms, RemoveRedundantFlowTime: 0.0ms, RemoveRedundantFlowUnfoldingTime: 0.0ms, BackfoldingTime: 0.0ms, BackfoldingUnfoldingTime: 0.0ms, FlowIncreaseByBackfolding: 0, BasicCegarLoop: VerificationResult: SAFE, OverallTime: 1251.9ms, OverallIterations: 4, TraceHistogramMax: 1, EmptinessCheckTime: 0.0ms, AutomataDifference: 599.7ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 30.9ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 42 SDtfs, 92 SDslu, 123 SDs, 0 SdLazy, 111 SolverSat, 7 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 88.4ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 52 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 444.7ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=136occurred in iteration=3, InterpolantAutomatonStates: 39, 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: 13.1ms SsaConstructionTime, 88.3ms SatisfiabilityAnalysisTime, 394.1ms InterpolantComputationTime, 151 NumberOfCodeBlocks, 151 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 147 ConstructedInterpolants, 0 QuantifiedInterpolants, 571 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...