/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-FA-NoLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-wmm/safe032_tso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-29289db [2021-06-05 00:18:17,097 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-06-05 00:18:17,100 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-06-05 00:18:17,128 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-06-05 00:18:17,156 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-06-05 00:18:17,157 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-06-05 00:18:17,157 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-06-05 00:18:17,158 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-FA-NoLbe.epf [2021-06-05 00:18:17,177 INFO L113 SettingsManager]: Loading preferences was successful [2021-06-05 00:18:17,177 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-06-05 00:18:17,178 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-06-05 00:18:17,178 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-06-05 00:18:17,179 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-06-05 00:18:17,179 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-06-05 00:18:17,179 INFO L138 SettingsManager]: * Use SBE=true [2021-06-05 00:18:17,179 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-06-05 00:18:17,179 INFO L138 SettingsManager]: * sizeof long=4 [2021-06-05 00:18:17,179 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-06-05 00:18:17,180 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-06-05 00:18:17,180 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-06-05 00:18:17,180 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-06-05 00:18:17,180 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-06-05 00:18:17,180 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-06-05 00:18:17,180 INFO L138 SettingsManager]: * sizeof long double=12 [2021-06-05 00:18:17,180 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-06-05 00:18:17,180 INFO L138 SettingsManager]: * Use constant arrays=true [2021-06-05 00:18:17,181 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-06-05 00:18:17,181 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-06-05 00:18:17,181 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-06-05 00:18:17,181 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-06-05 00:18:17,181 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-06-05 00:18:17,181 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-06-05 00:18:17,181 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-06-05 00:18:17,181 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-06-05 00:18:17,182 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-06-05 00:18:17,182 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-06-05 00:18:17,182 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-06-05 00:18:17,182 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-06-05 00:18:17,182 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-06-05 00:18:17,182 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-06-05 00:18:17,461 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-06-05 00:18:17,489 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-06-05 00:18:17,492 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-06-05 00:18:17,493 INFO L271 PluginConnector]: Initializing CDTParser... [2021-06-05 00:18:17,494 INFO L275 PluginConnector]: CDTParser initialized [2021-06-05 00:18:17,495 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe032_tso.oepc.i [2021-06-05 00:18:17,557 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/77e18dcb3/935968e929f5456ea0cbc1b6425b624f/FLAGcaa6ea4ea [2021-06-05 00:18:18,031 INFO L306 CDTParser]: Found 1 translation units. [2021-06-05 00:18:18,032 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe032_tso.oepc.i [2021-06-05 00:18:18,049 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/77e18dcb3/935968e929f5456ea0cbc1b6425b624f/FLAGcaa6ea4ea [2021-06-05 00:18:18,355 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/77e18dcb3/935968e929f5456ea0cbc1b6425b624f [2021-06-05 00:18:18,357 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-06-05 00:18:18,359 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-06-05 00:18:18,363 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-06-05 00:18:18,363 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-06-05 00:18:18,367 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-06-05 00:18:18,368 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.06 12:18:18" (1/1) ... [2021-06-05 00:18:18,369 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5f72136e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 12:18:18, skipping insertion in model container [2021-06-05 00:18:18,369 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.06 12:18:18" (1/1) ... [2021-06-05 00:18:18,375 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-06-05 00:18:18,411 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-06-05 00:18:18,590 WARN L224 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe032_tso.oepc.i[950,963] [2021-06-05 00:18:18,794 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-06-05 00:18:18,801 INFO L203 MainTranslator]: Completed pre-run [2021-06-05 00:18:18,812 WARN L224 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe032_tso.oepc.i[950,963] [2021-06-05 00:18:18,857 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-06-05 00:18:18,926 INFO L208 MainTranslator]: Completed translation [2021-06-05 00:18:18,927 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 12:18:18 WrapperNode [2021-06-05 00:18:18,927 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-06-05 00:18:18,928 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-06-05 00:18:18,928 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-06-05 00:18:18,928 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-06-05 00:18:18,937 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 12:18:18" (1/1) ... [2021-06-05 00:18:18,968 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 12:18:18" (1/1) ... [2021-06-05 00:18:18,990 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-06-05 00:18:18,991 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-06-05 00:18:18,991 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-06-05 00:18:18,991 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-06-05 00:18:18,999 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 12:18:18" (1/1) ... [2021-06-05 00:18:18,999 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 12:18:18" (1/1) ... [2021-06-05 00:18:19,016 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 12:18:18" (1/1) ... [2021-06-05 00:18:19,016 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 12:18:18" (1/1) ... [2021-06-05 00:18:19,021 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 12:18:18" (1/1) ... [2021-06-05 00:18:19,022 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 12:18:18" (1/1) ... [2021-06-05 00:18:19,023 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 12:18:18" (1/1) ... [2021-06-05 00:18:19,025 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-06-05 00:18:19,026 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-06-05 00:18:19,026 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-06-05 00:18:19,026 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-06-05 00:18:19,027 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 12:18:18" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-06-05 00:18:19,107 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-06-05 00:18:19,108 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-06-05 00:18:19,108 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-06-05 00:18:19,109 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-06-05 00:18:19,109 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2021-06-05 00:18:19,111 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2021-06-05 00:18:19,111 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2021-06-05 00:18:19,112 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2021-06-05 00:18:19,112 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2021-06-05 00:18:19,112 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2021-06-05 00:18:19,112 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-06-05 00:18:19,112 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-06-05 00:18:19,113 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-06-05 00:18:19,113 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-06-05 00:18:19,114 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-06-05 00:18:19,571 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-06-05 00:18:19,571 INFO L299 CfgBuilder]: Removed 8 assume(true) statements. [2021-06-05 00:18:19,573 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.06 12:18:19 BoogieIcfgContainer [2021-06-05 00:18:19,573 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-06-05 00:18:19,574 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-06-05 00:18:19,575 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-06-05 00:18:19,577 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-06-05 00:18:19,577 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 05.06 12:18:18" (1/3) ... [2021-06-05 00:18:19,578 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@46452bf2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.06 12:18:19, skipping insertion in model container [2021-06-05 00:18:19,578 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 12:18:18" (2/3) ... [2021-06-05 00:18:19,579 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@46452bf2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.06 12:18:19, skipping insertion in model container [2021-06-05 00:18:19,579 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.06 12:18:19" (3/3) ... [2021-06-05 00:18:19,580 INFO L111 eAbstractionObserver]: Analyzing ICFG safe032_tso.oepc.i [2021-06-05 00:18:19,587 WARN L148 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-06-05 00:18:19,587 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-06-05 00:18:19,588 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-06-05 00:18:19,588 INFO L510 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-06-05 00:18:19,626 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:18:19,627 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:18:19,627 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:18:19,627 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:18:19,627 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:18:19,627 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:18:19,628 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:18:19,628 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:18:19,628 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:18:19,628 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:18:19,628 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:18:19,628 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:18:19,629 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:18:19,629 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:18:19,629 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:18:19,629 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:18:19,630 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:18:19,631 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:18:19,631 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:18:19,631 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:18:19,634 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:18:19,634 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:18:19,635 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:18:19,635 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:18:19,640 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:18:19,640 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:18:19,640 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:18:19,640 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:18:19,640 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:18:19,641 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:18:19,641 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:18:19,641 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:18:19,642 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:18:19,643 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:18:19,643 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:18:19,643 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:18:19,647 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:18:19,648 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:18:19,648 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:18:19,648 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:18:19,655 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:18:19,656 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:18:19,656 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:18:19,656 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:18:19,659 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:18:19,659 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:18:19,662 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:18:19,662 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:18:19,664 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-06-05 00:18:19,679 INFO L255 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2021-06-05 00:18:19,693 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-06-05 00:18:19,693 INFO L379 AbstractCegarLoop]: Hoare is false [2021-06-05 00:18:19,693 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-06-05 00:18:19,693 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-06-05 00:18:19,693 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-06-05 00:18:19,693 INFO L383 AbstractCegarLoop]: Difference is false [2021-06-05 00:18:19,694 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-06-05 00:18:19,694 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-06-05 00:18:19,703 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 91 places, 83 transitions, 181 flow [2021-06-05 00:18:20,178 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 9331 states, 9329 states have (on average 3.5626540893986496) internal successors, (33236), 9330 states have internal predecessors, (33236), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:18:20,223 INFO L276 IsEmpty]: Start isEmpty. Operand has 9331 states, 9329 states have (on average 3.5626540893986496) internal successors, (33236), 9330 states have internal predecessors, (33236), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:18:20,254 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2021-06-05 00:18:20,254 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:18:20,255 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:18:20,256 INFO L430 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:18:20,262 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:18:20,263 INFO L82 PathProgramCache]: Analyzing trace with hash 2015733592, now seen corresponding path program 1 times [2021-06-05 00:18:20,270 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:18:20,270 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [159328886] [2021-06-05 00:18:20,270 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:18:20,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:18:20,711 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:18:20,711 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:18:20,711 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [159328886] [2021-06-05 00:18:20,715 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [159328886] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:18:20,715 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:18:20,715 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-06-05 00:18:20,716 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [205971879] [2021-06-05 00:18:20,719 INFO L462 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-06-05 00:18:20,720 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:18:20,741 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-06-05 00:18:20,742 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-06-05 00:18:20,795 INFO L87 Difference]: Start difference. First operand has 9331 states, 9329 states have (on average 3.5626540893986496) internal successors, (33236), 9330 states have internal predecessors, (33236), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 6 states, 6 states have (on average 8.0) internal successors, (48), 6 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:18:21,109 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:18:21,110 INFO L93 Difference]: Finished difference Result 11438 states and 39543 transitions. [2021-06-05 00:18:21,110 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 00:18:21,111 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.0) internal successors, (48), 6 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 48 [2021-06-05 00:18:21,113 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:18:21,161 INFO L225 Difference]: With dead ends: 11438 [2021-06-05 00:18:21,162 INFO L226 Difference]: Without dead ends: 4333 [2021-06-05 00:18:21,163 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 174.8ms TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2021-06-05 00:18:21,206 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4333 states. [2021-06-05 00:18:21,409 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4333 to 4333. [2021-06-05 00:18:21,433 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4333 states, 4332 states have (on average 3.3642659279778395) internal successors, (14574), 4332 states have internal predecessors, (14574), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:18:21,455 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4333 states to 4333 states and 14574 transitions. [2021-06-05 00:18:21,457 INFO L78 Accepts]: Start accepts. Automaton has 4333 states and 14574 transitions. Word has length 48 [2021-06-05 00:18:21,458 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:18:21,458 INFO L482 AbstractCegarLoop]: Abstraction has 4333 states and 14574 transitions. [2021-06-05 00:18:21,458 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 8.0) internal successors, (48), 6 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:18:21,458 INFO L276 IsEmpty]: Start isEmpty. Operand 4333 states and 14574 transitions. [2021-06-05 00:18:21,469 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2021-06-05 00:18:21,470 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:18:21,470 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:18:21,470 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-06-05 00:18:21,471 INFO L430 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:18:21,471 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:18:21,471 INFO L82 PathProgramCache]: Analyzing trace with hash 315338805, now seen corresponding path program 1 times [2021-06-05 00:18:21,471 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:18:21,472 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1994421686] [2021-06-05 00:18:21,472 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:18:21,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:18:21,689 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:18:21,690 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:18:21,690 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1994421686] [2021-06-05 00:18:21,690 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1994421686] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:18:21,690 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:18:21,690 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-06-05 00:18:21,691 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [615589465] [2021-06-05 00:18:21,692 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-06-05 00:18:21,692 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:18:21,692 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-06-05 00:18:21,693 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-06-05 00:18:21,693 INFO L87 Difference]: Start difference. First operand 4333 states and 14574 transitions. Second operand has 7 states, 7 states have (on average 7.285714285714286) internal successors, (51), 7 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:18:21,979 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:18:21,979 INFO L93 Difference]: Finished difference Result 7653 states and 25687 transitions. [2021-06-05 00:18:21,980 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-06-05 00:18:21,980 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.285714285714286) internal successors, (51), 7 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 51 [2021-06-05 00:18:21,981 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:18:21,998 INFO L225 Difference]: With dead ends: 7653 [2021-06-05 00:18:21,999 INFO L226 Difference]: Without dead ends: 2981 [2021-06-05 00:18:21,999 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 232.5ms TimeCoverageRelationStatistics Valid=73, Invalid=137, Unknown=0, NotChecked=0, Total=210 [2021-06-05 00:18:22,011 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2981 states. [2021-06-05 00:18:22,076 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2981 to 2789. [2021-06-05 00:18:22,081 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2789 states, 2788 states have (on average 3.1251793400286942) internal successors, (8713), 2788 states have internal predecessors, (8713), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:18:22,098 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2789 states to 2789 states and 8713 transitions. [2021-06-05 00:18:22,098 INFO L78 Accepts]: Start accepts. Automaton has 2789 states and 8713 transitions. Word has length 51 [2021-06-05 00:18:22,099 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:18:22,099 INFO L482 AbstractCegarLoop]: Abstraction has 2789 states and 8713 transitions. [2021-06-05 00:18:22,100 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 7.285714285714286) internal successors, (51), 7 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:18:22,100 INFO L276 IsEmpty]: Start isEmpty. Operand 2789 states and 8713 transitions. [2021-06-05 00:18:22,108 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2021-06-05 00:18:22,108 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:18:22,108 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:18:22,109 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-06-05 00:18:22,109 INFO L430 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:18:22,116 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:18:22,117 INFO L82 PathProgramCache]: Analyzing trace with hash 495337300, now seen corresponding path program 1 times [2021-06-05 00:18:22,117 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:18:22,117 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1088341536] [2021-06-05 00:18:22,117 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:18:22,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:18:22,279 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:18:22,279 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:18:22,279 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1088341536] [2021-06-05 00:18:22,280 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1088341536] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:18:22,280 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:18:22,280 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-06-05 00:18:22,281 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [20100432] [2021-06-05 00:18:22,282 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-06-05 00:18:22,282 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:18:22,284 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-06-05 00:18:22,284 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-06-05 00:18:22,285 INFO L87 Difference]: Start difference. First operand 2789 states and 8713 transitions. Second operand has 7 states, 7 states have (on average 7.571428571428571) internal successors, (53), 7 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:18:22,514 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:18:22,514 INFO L93 Difference]: Finished difference Result 3480 states and 10901 transitions. [2021-06-05 00:18:22,515 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-06-05 00:18:22,515 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.571428571428571) internal successors, (53), 7 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 53 [2021-06-05 00:18:22,515 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:18:22,530 INFO L225 Difference]: With dead ends: 3480 [2021-06-05 00:18:22,530 INFO L226 Difference]: Without dead ends: 2856 [2021-06-05 00:18:22,531 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 155.9ms TimeCoverageRelationStatistics Valid=73, Invalid=137, Unknown=0, NotChecked=0, Total=210 [2021-06-05 00:18:22,541 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2856 states. [2021-06-05 00:18:22,586 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2856 to 2485. [2021-06-05 00:18:22,590 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2485 states, 2484 states have (on average 3.0841384863123995) internal successors, (7661), 2484 states have internal predecessors, (7661), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:18:22,598 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2485 states to 2485 states and 7661 transitions. [2021-06-05 00:18:22,599 INFO L78 Accepts]: Start accepts. Automaton has 2485 states and 7661 transitions. Word has length 53 [2021-06-05 00:18:22,601 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:18:22,601 INFO L482 AbstractCegarLoop]: Abstraction has 2485 states and 7661 transitions. [2021-06-05 00:18:22,601 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 7.571428571428571) internal successors, (53), 7 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:18:22,601 INFO L276 IsEmpty]: Start isEmpty. Operand 2485 states and 7661 transitions. [2021-06-05 00:18:22,606 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2021-06-05 00:18:22,606 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:18:22,606 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:18:22,607 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-06-05 00:18:22,607 INFO L430 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:18:22,608 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:18:22,608 INFO L82 PathProgramCache]: Analyzing trace with hash -1115610283, now seen corresponding path program 1 times [2021-06-05 00:18:22,608 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:18:22,608 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1460534500] [2021-06-05 00:18:22,609 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:18:22,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:18:22,717 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:18:22,718 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:18:22,718 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1460534500] [2021-06-05 00:18:22,718 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1460534500] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:18:22,718 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:18:22,718 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-06-05 00:18:22,718 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [676565207] [2021-06-05 00:18:22,719 INFO L462 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-06-05 00:18:22,719 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:18:22,719 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-06-05 00:18:22,720 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-06-05 00:18:22,720 INFO L87 Difference]: Start difference. First operand 2485 states and 7661 transitions. Second operand has 6 states, 6 states have (on average 9.166666666666666) internal successors, (55), 6 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:18:22,845 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:18:22,846 INFO L93 Difference]: Finished difference Result 2982 states and 9073 transitions. [2021-06-05 00:18:22,846 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 00:18:22,846 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.166666666666666) internal successors, (55), 6 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 55 [2021-06-05 00:18:22,847 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:18:22,857 INFO L225 Difference]: With dead ends: 2982 [2021-06-05 00:18:22,858 INFO L226 Difference]: Without dead ends: 2246 [2021-06-05 00:18:22,858 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 95.3ms TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2021-06-05 00:18:22,865 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2246 states. [2021-06-05 00:18:22,899 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2246 to 2246. [2021-06-05 00:18:22,902 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2246 states, 2245 states have (on average 3.02271714922049) internal successors, (6786), 2245 states have internal predecessors, (6786), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:18:22,909 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2246 states to 2246 states and 6786 transitions. [2021-06-05 00:18:22,910 INFO L78 Accepts]: Start accepts. Automaton has 2246 states and 6786 transitions. Word has length 55 [2021-06-05 00:18:22,910 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:18:22,910 INFO L482 AbstractCegarLoop]: Abstraction has 2246 states and 6786 transitions. [2021-06-05 00:18:22,910 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 9.166666666666666) internal successors, (55), 6 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:18:22,911 INFO L276 IsEmpty]: Start isEmpty. Operand 2246 states and 6786 transitions. [2021-06-05 00:18:22,915 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2021-06-05 00:18:22,915 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:18:22,915 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:18:22,915 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-06-05 00:18:22,916 INFO L430 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:18:22,916 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:18:22,916 INFO L82 PathProgramCache]: Analyzing trace with hash 19651416, now seen corresponding path program 1 times [2021-06-05 00:18:22,916 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:18:22,916 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [359468719] [2021-06-05 00:18:22,917 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:18:22,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:18:23,044 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:18:23,044 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:18:23,044 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [359468719] [2021-06-05 00:18:23,044 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [359468719] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:18:23,045 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:18:23,045 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-06-05 00:18:23,045 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [642293911] [2021-06-05 00:18:23,046 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-06-05 00:18:23,046 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:18:23,046 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-06-05 00:18:23,047 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-06-05 00:18:23,047 INFO L87 Difference]: Start difference. First operand 2246 states and 6786 transitions. Second operand has 7 states, 7 states have (on average 8.0) internal successors, (56), 7 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:18:23,189 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:18:23,190 INFO L93 Difference]: Finished difference Result 2177 states and 6401 transitions. [2021-06-05 00:18:23,190 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 00:18:23,190 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.0) internal successors, (56), 7 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 56 [2021-06-05 00:18:23,191 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:18:23,198 INFO L225 Difference]: With dead ends: 2177 [2021-06-05 00:18:23,198 INFO L226 Difference]: Without dead ends: 1601 [2021-06-05 00:18:23,199 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 108.1ms TimeCoverageRelationStatistics Valid=49, Invalid=107, Unknown=0, NotChecked=0, Total=156 [2021-06-05 00:18:23,203 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1601 states. [2021-06-05 00:18:23,226 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1601 to 1601. [2021-06-05 00:18:23,228 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1601 states, 1600 states have (on average 2.88125) internal successors, (4610), 1600 states have internal predecessors, (4610), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:18:23,233 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1601 states to 1601 states and 4610 transitions. [2021-06-05 00:18:23,233 INFO L78 Accepts]: Start accepts. Automaton has 1601 states and 4610 transitions. Word has length 56 [2021-06-05 00:18:23,233 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:18:23,233 INFO L482 AbstractCegarLoop]: Abstraction has 1601 states and 4610 transitions. [2021-06-05 00:18:23,233 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 8.0) internal successors, (56), 7 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:18:23,234 INFO L276 IsEmpty]: Start isEmpty. Operand 1601 states and 4610 transitions. [2021-06-05 00:18:23,237 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2021-06-05 00:18:23,237 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:18:23,237 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:18:23,237 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-06-05 00:18:23,237 INFO L430 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:18:23,238 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:18:23,238 INFO L82 PathProgramCache]: Analyzing trace with hash -379824599, now seen corresponding path program 1 times [2021-06-05 00:18:23,238 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:18:23,238 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1158199050] [2021-06-05 00:18:23,238 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:18:23,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:18:23,324 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:18:23,325 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:18:23,325 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1158199050] [2021-06-05 00:18:23,325 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1158199050] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:18:23,326 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:18:23,326 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 00:18:23,326 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1659590485] [2021-06-05 00:18:23,326 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-06-05 00:18:23,326 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:18:23,327 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-06-05 00:18:23,330 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-06-05 00:18:23,330 INFO L87 Difference]: Start difference. First operand 1601 states and 4610 transitions. Second operand has 8 states, 8 states have (on average 7.25) internal successors, (58), 8 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:18:23,416 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:18:23,417 INFO L93 Difference]: Finished difference Result 1169 states and 3287 transitions. [2021-06-05 00:18:23,417 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-06-05 00:18:23,417 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.25) internal successors, (58), 8 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 58 [2021-06-05 00:18:23,417 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:18:23,418 INFO L225 Difference]: With dead ends: 1169 [2021-06-05 00:18:23,418 INFO L226 Difference]: Without dead ends: 0 [2021-06-05 00:18:23,418 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 95.4ms TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2021-06-05 00:18:23,418 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-06-05 00:18:23,418 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-06-05 00:18:23,419 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:18:23,419 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-06-05 00:18:23,419 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 58 [2021-06-05 00:18:23,419 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:18:23,419 INFO L482 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-06-05 00:18:23,419 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 7.25) internal successors, (58), 8 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:18:23,419 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-06-05 00:18:23,419 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-06-05 00:18:23,420 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-06-05 00:18:23,421 INFO L246 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-06-05 00:18:23,423 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 05.06 12:18:23 BasicIcfg [2021-06-05 00:18:23,423 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-06-05 00:18:23,424 INFO L168 Benchmark]: Toolchain (without parser) took 5065.56 ms. Allocated memory was 388.0 MB in the beginning and 488.6 MB in the end (delta: 100.7 MB). Free memory was 350.0 MB in the beginning and 315.1 MB in the end (delta: 35.0 MB). Peak memory consumption was 137.2 MB. Max. memory is 16.0 GB. [2021-06-05 00:18:23,424 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 388.0 MB. Free memory is still 368.0 MB. There was no memory consumed. Max. memory is 16.0 GB. [2021-06-05 00:18:23,425 INFO L168 Benchmark]: CACSL2BoogieTranslator took 564.24 ms. Allocated memory is still 388.0 MB. Free memory was 349.8 MB in the beginning and 350.4 MB in the end (delta: -615.4 kB). Peak memory consumption was 7.4 MB. Max. memory is 16.0 GB. [2021-06-05 00:18:23,425 INFO L168 Benchmark]: Boogie Procedure Inliner took 61.97 ms. Allocated memory is still 388.0 MB. Free memory was 350.4 MB in the beginning and 347.9 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-06-05 00:18:23,425 INFO L168 Benchmark]: Boogie Preprocessor took 34.57 ms. Allocated memory is still 388.0 MB. Free memory was 347.9 MB in the beginning and 346.2 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-06-05 00:18:23,426 INFO L168 Benchmark]: RCFGBuilder took 547.07 ms. Allocated memory is still 388.0 MB. Free memory was 346.2 MB in the beginning and 321.1 MB in the end (delta: 25.2 MB). Peak memory consumption was 25.2 MB. Max. memory is 16.0 GB. [2021-06-05 00:18:23,426 INFO L168 Benchmark]: TraceAbstraction took 3848.66 ms. Allocated memory was 388.0 MB in the beginning and 488.6 MB in the end (delta: 100.7 MB). Free memory was 321.1 MB in the beginning and 315.1 MB in the end (delta: 6.0 MB). Peak memory consumption was 108.8 MB. Max. memory is 16.0 GB. [2021-06-05 00:18:23,428 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 388.0 MB. Free memory is still 368.0 MB. There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 564.24 ms. Allocated memory is still 388.0 MB. Free memory was 349.8 MB in the beginning and 350.4 MB in the end (delta: -615.4 kB). Peak memory consumption was 7.4 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 61.97 ms. Allocated memory is still 388.0 MB. Free memory was 350.4 MB in the beginning and 347.9 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 34.57 ms. Allocated memory is still 388.0 MB. Free memory was 347.9 MB in the beginning and 346.2 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * RCFGBuilder took 547.07 ms. Allocated memory is still 388.0 MB. Free memory was 346.2 MB in the beginning and 321.1 MB in the end (delta: 25.2 MB). Peak memory consumption was 25.2 MB. Max. memory is 16.0 GB. * TraceAbstraction took 3848.66 ms. Allocated memory was 388.0 MB in the beginning and 488.6 MB in the end (delta: 100.7 MB). Free memory was 321.1 MB in the beginning and 315.1 MB in the end (delta: 6.0 MB). Peak memory consumption was 108.8 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 - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 106 locations, 4 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 3729.2ms, OverallIterations: 6, TraceHistogramMax: 1, EmptinessCheckTime: 107.6ms, AutomataDifference: 1381.5ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 485.4ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 630 SDtfs, 1063 SDslu, 2022 SDs, 0 SdLazy, 258 SolverSat, 59 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 258.0ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 78 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 66 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 89 ImplicationChecksByTransitivity, 862.2ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=9331occurred in iteration=0, InterpolantAutomatonStates: 62, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 535.0ms AutomataMinimizationTime, 6 MinimizatonAttempts, 563 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 32.2ms SsaConstructionTime, 175.9ms SatisfiabilityAnalysisTime, 805.8ms InterpolantComputationTime, 321 NumberOfCodeBlocks, 321 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 315 ConstructedInterpolants, 0 QuantifiedInterpolants, 1191 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 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...