/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-wmm/safe011_tso.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.mcr-reduction-c7b2d19 [2022-03-15 13:12:21,936 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-03-15 13:12:21,964 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-03-15 13:12:21,995 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-03-15 13:12:22,024 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-03-15 13:12:22,025 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-03-15 13:12:22,025 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-03-15 13:12:22,026 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 [2022-03-15 13:12:22,042 INFO L113 SettingsManager]: Loading preferences was successful [2022-03-15 13:12:22,042 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-03-15 13:12:22,042 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-03-15 13:12:22,042 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-03-15 13:12:22,043 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-03-15 13:12:22,043 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-03-15 13:12:22,043 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-03-15 13:12:22,043 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-03-15 13:12:22,044 INFO L138 SettingsManager]: * Use SBE=true [2022-03-15 13:12:22,044 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-03-15 13:12:22,044 INFO L138 SettingsManager]: * sizeof long=4 [2022-03-15 13:12:22,044 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-03-15 13:12:22,044 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-03-15 13:12:22,044 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-03-15 13:12:22,044 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-03-15 13:12:22,044 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-03-15 13:12:22,044 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-03-15 13:12:22,044 INFO L138 SettingsManager]: * sizeof long double=12 [2022-03-15 13:12:22,045 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-03-15 13:12:22,045 INFO L138 SettingsManager]: * Use constant arrays=true [2022-03-15 13:12:22,045 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-03-15 13:12:22,045 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-03-15 13:12:22,045 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-03-15 13:12:22,045 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-03-15 13:12:22,045 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-03-15 13:12:22,045 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-15 13:12:22,045 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-03-15 13:12:22,045 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-03-15 13:12:22,046 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-03-15 13:12:22,046 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-03-15 13:12:22,046 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-03-15 13:12:22,046 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-03-15 13:12:22,046 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-03-15 13:12:22,046 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-03-15 13:12:22,218 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-03-15 13:12:22,240 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-03-15 13:12:22,242 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-03-15 13:12:22,243 INFO L271 PluginConnector]: Initializing CDTParser... [2022-03-15 13:12:22,243 INFO L275 PluginConnector]: CDTParser initialized [2022-03-15 13:12:22,244 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe011_tso.i [2022-03-15 13:12:22,287 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8016fbe34/7e1eff67ddd24515962d450b1d0cc213/FLAG0b4cf94cc [2022-03-15 13:12:22,687 INFO L306 CDTParser]: Found 1 translation units. [2022-03-15 13:12:22,687 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe011_tso.i [2022-03-15 13:12:22,705 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8016fbe34/7e1eff67ddd24515962d450b1d0cc213/FLAG0b4cf94cc [2022-03-15 13:12:22,714 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8016fbe34/7e1eff67ddd24515962d450b1d0cc213 [2022-03-15 13:12:22,716 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-03-15 13:12:22,716 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-03-15 13:12:22,717 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-03-15 13:12:22,718 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-03-15 13:12:22,720 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-03-15 13:12:22,720 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.03 01:12:22" (1/1) ... [2022-03-15 13:12:22,721 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@33026975 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 01:12:22, skipping insertion in model container [2022-03-15 13:12:22,721 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.03 01:12:22" (1/1) ... [2022-03-15 13:12:22,731 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-03-15 13:12:22,770 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-03-15 13:12:22,907 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe011_tso.i[945,958] [2022-03-15 13:12:23,030 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-03-15 13:12:23,035 INFO L203 MainTranslator]: Completed pre-run [2022-03-15 13:12:23,044 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe011_tso.i[945,958] [2022-03-15 13:12:23,069 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-03-15 13:12:23,096 INFO L208 MainTranslator]: Completed translation [2022-03-15 13:12:23,097 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 01:12:23 WrapperNode [2022-03-15 13:12:23,097 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-03-15 13:12:23,098 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-03-15 13:12:23,098 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-03-15 13:12:23,098 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-03-15 13:12:23,102 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 01:12:23" (1/1) ... [2022-03-15 13:12:23,110 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 01:12:23" (1/1) ... [2022-03-15 13:12:23,126 INFO L137 Inliner]: procedures = 176, calls = 53, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 70 [2022-03-15 13:12:23,127 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-03-15 13:12:23,127 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-03-15 13:12:23,127 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-03-15 13:12:23,127 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-03-15 13:12:23,132 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 01:12:23" (1/1) ... [2022-03-15 13:12:23,132 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 01:12:23" (1/1) ... [2022-03-15 13:12:23,134 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 01:12:23" (1/1) ... [2022-03-15 13:12:23,134 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 01:12:23" (1/1) ... [2022-03-15 13:12:23,137 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 01:12:23" (1/1) ... [2022-03-15 13:12:23,138 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 01:12:23" (1/1) ... [2022-03-15 13:12:23,139 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 01:12:23" (1/1) ... [2022-03-15 13:12:23,141 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-03-15 13:12:23,141 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-03-15 13:12:23,142 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-03-15 13:12:23,142 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-03-15 13:12:23,142 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 01:12:23" (1/1) ... [2022-03-15 13:12:23,151 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-15 13:12:23,160 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-15 13:12:23,172 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-03-15 13:12:23,195 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-03-15 13:12:23,203 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-03-15 13:12:23,203 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-03-15 13:12:23,203 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-03-15 13:12:23,203 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-03-15 13:12:23,203 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-03-15 13:12:23,203 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2022-03-15 13:12:23,203 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2022-03-15 13:12:23,203 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2022-03-15 13:12:23,204 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2022-03-15 13:12:23,204 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2022-03-15 13:12:23,204 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2022-03-15 13:12:23,204 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-03-15 13:12:23,204 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-03-15 13:12:23,204 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-03-15 13:12:23,204 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-03-15 13:12:23,205 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-03-15 13:12:23,285 INFO L234 CfgBuilder]: Building ICFG [2022-03-15 13:12:23,286 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-03-15 13:12:23,440 INFO L275 CfgBuilder]: Performing block encoding [2022-03-15 13:12:23,445 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-03-15 13:12:23,445 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-03-15 13:12:23,446 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.03 01:12:23 BoogieIcfgContainer [2022-03-15 13:12:23,447 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-03-15 13:12:23,448 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-03-15 13:12:23,448 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-03-15 13:12:23,450 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-03-15 13:12:23,450 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.03 01:12:22" (1/3) ... [2022-03-15 13:12:23,451 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7d83bc67 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.03 01:12:23, skipping insertion in model container [2022-03-15 13:12:23,451 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 01:12:23" (2/3) ... [2022-03-15 13:12:23,451 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7d83bc67 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.03 01:12:23, skipping insertion in model container [2022-03-15 13:12:23,451 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.03 01:12:23" (3/3) ... [2022-03-15 13:12:23,452 INFO L111 eAbstractionObserver]: Analyzing ICFG safe011_tso.i [2022-03-15 13:12:23,455 WARN L150 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-03-15 13:12:23,455 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-03-15 13:12:23,455 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-03-15 13:12:23,456 INFO L534 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-03-15 13:12:23,483 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:12:23,483 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:12:23,483 WARN L322 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:12:23,483 WARN L322 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:12:23,484 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:12:23,484 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:12:23,484 WARN L322 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:12:23,484 WARN L322 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:12:23,484 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:12:23,484 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:12:23,485 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:12:23,485 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:12:23,485 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:12:23,485 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:12:23,485 WARN L322 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:12:23,485 WARN L322 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:12:23,486 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:12:23,486 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:12:23,486 WARN L322 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:12:23,486 WARN L322 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:12:23,486 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:12:23,486 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:12:23,487 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:12:23,487 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:12:23,487 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:12:23,487 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:12:23,487 WARN L322 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:12:23,487 WARN L322 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:12:23,487 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:12:23,487 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:12:23,488 WARN L322 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:12:23,488 WARN L322 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:12:23,488 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:12:23,488 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:12:23,488 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:12:23,489 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:12:23,491 WARN L322 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:12:23,491 WARN L322 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:12:23,492 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:12:23,492 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:12:23,493 WARN L322 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:12:23,493 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:12:23,494 WARN L322 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:12:23,494 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:12:23,494 WARN L322 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:12:23,495 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:12:23,495 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:12:23,495 WARN L322 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:12:23,495 INFO L148 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-03-15 13:12:23,524 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-03-15 13:12:23,533 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mLazyFiniteAutomaton=false, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR, mMcrOptimizeForkJoin=true, mMcrOverapproximateWrwc=true [2022-03-15 13:12:23,533 INFO L340 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2022-03-15 13:12:23,549 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 99 places, 91 transitions, 197 flow [2022-03-15 13:12:23,782 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 6590 states, 6589 states have (on average 3.5052359993929274) internal successors, (23096), 6589 states have internal predecessors, (23096), 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) [2022-03-15 13:12:23,802 INFO L276 IsEmpty]: Start isEmpty. Operand has 6590 states, 6589 states have (on average 3.5052359993929274) internal successors, (23096), 6589 states have internal predecessors, (23096), 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) [2022-03-15 13:12:23,829 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2022-03-15 13:12:23,829 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:12:23,830 INFO L514 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] [2022-03-15 13:12:23,830 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-15 13:12:23,835 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:12:23,835 INFO L85 PathProgramCache]: Analyzing trace with hash -1250208404, now seen corresponding path program 1 times [2022-03-15 13:12:23,841 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:12:23,841 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1715817073] [2022-03-15 13:12:23,841 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:12:23,842 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:12:23,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:12:24,217 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:12:24,218 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:12:24,218 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1715817073] [2022-03-15 13:12:24,219 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1715817073] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:12:24,219 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:12:24,219 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-03-15 13:12:24,221 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1597917166] [2022-03-15 13:12:24,222 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:12:24,225 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-03-15 13:12:24,226 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:12:24,259 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-03-15 13:12:24,260 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-03-15 13:12:24,292 INFO L87 Difference]: Start difference. First operand has 6590 states, 6589 states have (on average 3.5052359993929274) internal successors, (23096), 6589 states have internal predecessors, (23096), 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 9.0) internal successors, (54), 6 states have internal predecessors, (54), 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) [2022-03-15 13:12:24,642 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:12:24,642 INFO L93 Difference]: Finished difference Result 13357 states and 45494 transitions. [2022-03-15 13:12:24,643 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 13:12:24,644 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.0) internal successors, (54), 6 states have internal predecessors, (54), 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 54 [2022-03-15 13:12:24,645 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:12:24,699 INFO L225 Difference]: With dead ends: 13357 [2022-03-15 13:12:24,699 INFO L226 Difference]: Without dead ends: 8803 [2022-03-15 13:12:24,701 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2022-03-15 13:12:24,704 INFO L933 BasicCegarLoop]: 147 mSDtfsCounter, 126 mSDsluCounter, 400 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 126 SdHoareTripleChecker+Valid, 536 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:12:24,705 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [126 Valid, 536 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:12:24,737 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8803 states. [2022-03-15 13:12:24,976 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8803 to 7291. [2022-03-15 13:12:25,006 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7291 states, 7290 states have (on average 3.3526748971193414) internal successors, (24441), 7290 states have internal predecessors, (24441), 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) [2022-03-15 13:12:25,091 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7291 states to 7291 states and 24441 transitions. [2022-03-15 13:12:25,092 INFO L78 Accepts]: Start accepts. Automaton has 7291 states and 24441 transitions. Word has length 54 [2022-03-15 13:12:25,093 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:12:25,094 INFO L470 AbstractCegarLoop]: Abstraction has 7291 states and 24441 transitions. [2022-03-15 13:12:25,094 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.0) internal successors, (54), 6 states have internal predecessors, (54), 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) [2022-03-15 13:12:25,094 INFO L276 IsEmpty]: Start isEmpty. Operand 7291 states and 24441 transitions. [2022-03-15 13:12:25,110 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2022-03-15 13:12:25,111 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:12:25,111 INFO L514 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] [2022-03-15 13:12:25,112 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-03-15 13:12:25,112 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-15 13:12:25,114 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:12:25,114 INFO L85 PathProgramCache]: Analyzing trace with hash 1691182573, now seen corresponding path program 1 times [2022-03-15 13:12:25,115 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:12:25,115 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1381564911] [2022-03-15 13:12:25,115 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:12:25,115 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:12:25,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:12:25,278 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:12:25,278 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:12:25,278 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1381564911] [2022-03-15 13:12:25,278 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1381564911] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:12:25,279 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:12:25,279 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-15 13:12:25,279 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1009632478] [2022-03-15 13:12:25,279 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:12:25,280 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-03-15 13:12:25,281 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:12:25,281 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-03-15 13:12:25,284 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-03-15 13:12:25,285 INFO L87 Difference]: Start difference. First operand 7291 states and 24441 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) [2022-03-15 13:12:25,564 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:12:25,564 INFO L93 Difference]: Finished difference Result 10108 states and 33609 transitions. [2022-03-15 13:12:25,565 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-03-15 13:12:25,565 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 [2022-03-15 13:12:25,565 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:12:25,602 INFO L225 Difference]: With dead ends: 10108 [2022-03-15 13:12:25,602 INFO L226 Difference]: Without dead ends: 7893 [2022-03-15 13:12:25,602 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=73, Invalid=137, Unknown=0, NotChecked=0, Total=210 [2022-03-15 13:12:25,603 INFO L933 BasicCegarLoop]: 126 mSDtfsCounter, 189 mSDsluCounter, 498 mSDsCounter, 0 mSdLazyCounter, 63 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 189 SdHoareTripleChecker+Valid, 615 SdHoareTripleChecker+Invalid, 66 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 63 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:12:25,603 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [189 Valid, 615 Invalid, 66 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 63 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:12:25,622 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7893 states. [2022-03-15 13:12:25,759 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7893 to 6121. [2022-03-15 13:12:25,772 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6121 states, 6120 states have (on average 3.3326797385620917) internal successors, (20396), 6120 states have internal predecessors, (20396), 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) [2022-03-15 13:12:25,843 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6121 states to 6121 states and 20396 transitions. [2022-03-15 13:12:25,844 INFO L78 Accepts]: Start accepts. Automaton has 6121 states and 20396 transitions. Word has length 56 [2022-03-15 13:12:25,844 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:12:25,844 INFO L470 AbstractCegarLoop]: Abstraction has 6121 states and 20396 transitions. [2022-03-15 13:12:25,844 INFO L471 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) [2022-03-15 13:12:25,844 INFO L276 IsEmpty]: Start isEmpty. Operand 6121 states and 20396 transitions. [2022-03-15 13:12:25,855 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2022-03-15 13:12:25,855 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:12:25,855 INFO L514 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] [2022-03-15 13:12:25,855 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-03-15 13:12:25,855 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-15 13:12:25,856 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:12:25,856 INFO L85 PathProgramCache]: Analyzing trace with hash -1385860435, now seen corresponding path program 1 times [2022-03-15 13:12:25,856 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:12:25,856 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1272851248] [2022-03-15 13:12:25,856 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:12:25,856 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:12:25,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:12:25,991 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:12:25,992 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:12:25,992 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1272851248] [2022-03-15 13:12:25,993 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1272851248] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:12:25,993 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:12:25,993 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-15 13:12:25,993 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1321198439] [2022-03-15 13:12:25,993 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:12:25,993 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-03-15 13:12:25,994 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:12:25,994 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-03-15 13:12:25,994 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-03-15 13:12:25,994 INFO L87 Difference]: Start difference. First operand 6121 states and 20396 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) [2022-03-15 13:12:26,215 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:12:26,216 INFO L93 Difference]: Finished difference Result 9468 states and 31273 transitions. [2022-03-15 13:12:26,216 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-03-15 13:12:26,216 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 [2022-03-15 13:12:26,216 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:12:26,239 INFO L225 Difference]: With dead ends: 9468 [2022-03-15 13:12:26,239 INFO L226 Difference]: Without dead ends: 7403 [2022-03-15 13:12:26,239 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=73, Invalid=137, Unknown=0, NotChecked=0, Total=210 [2022-03-15 13:12:26,240 INFO L933 BasicCegarLoop]: 120 mSDtfsCounter, 215 mSDsluCounter, 493 mSDsCounter, 0 mSdLazyCounter, 62 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 215 SdHoareTripleChecker+Valid, 598 SdHoareTripleChecker+Invalid, 68 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 62 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-15 13:12:26,240 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [215 Valid, 598 Invalid, 68 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 62 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-15 13:12:26,253 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7403 states. [2022-03-15 13:12:26,387 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7403 to 5911. [2022-03-15 13:12:26,404 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5911 states, 5910 states have (on average 3.318781725888325) internal successors, (19614), 5910 states have internal predecessors, (19614), 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) [2022-03-15 13:12:26,429 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5911 states to 5911 states and 19614 transitions. [2022-03-15 13:12:26,429 INFO L78 Accepts]: Start accepts. Automaton has 5911 states and 19614 transitions. Word has length 56 [2022-03-15 13:12:26,429 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:12:26,429 INFO L470 AbstractCegarLoop]: Abstraction has 5911 states and 19614 transitions. [2022-03-15 13:12:26,430 INFO L471 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) [2022-03-15 13:12:26,430 INFO L276 IsEmpty]: Start isEmpty. Operand 5911 states and 19614 transitions. [2022-03-15 13:12:26,440 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2022-03-15 13:12:26,440 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:12:26,440 INFO L514 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] [2022-03-15 13:12:26,440 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-03-15 13:12:26,441 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-15 13:12:26,441 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:12:26,441 INFO L85 PathProgramCache]: Analyzing trace with hash -797612306, now seen corresponding path program 1 times [2022-03-15 13:12:26,441 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:12:26,441 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1251454275] [2022-03-15 13:12:26,441 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:12:26,442 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:12:26,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:12:26,537 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:12:26,537 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:12:26,538 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1251454275] [2022-03-15 13:12:26,538 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1251454275] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:12:26,538 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:12:26,538 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-15 13:12:26,538 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [974950030] [2022-03-15 13:12:26,538 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:12:26,538 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-03-15 13:12:26,538 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:12:26,539 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-03-15 13:12:26,539 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-03-15 13:12:26,539 INFO L87 Difference]: Start difference. First operand 5911 states and 19614 transitions. Second operand has 7 states, 7 states have (on average 8.285714285714286) internal successors, (58), 7 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) [2022-03-15 13:12:26,711 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:12:26,711 INFO L93 Difference]: Finished difference Result 8696 states and 28577 transitions. [2022-03-15 13:12:26,711 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-03-15 13:12:26,712 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.285714285714286) internal successors, (58), 7 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 [2022-03-15 13:12:26,712 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:12:26,736 INFO L225 Difference]: With dead ends: 8696 [2022-03-15 13:12:26,736 INFO L226 Difference]: Without dead ends: 7221 [2022-03-15 13:12:26,736 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=73, Invalid=137, Unknown=0, NotChecked=0, Total=210 [2022-03-15 13:12:26,737 INFO L933 BasicCegarLoop]: 126 mSDtfsCounter, 183 mSDsluCounter, 490 mSDsCounter, 0 mSdLazyCounter, 57 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 183 SdHoareTripleChecker+Valid, 603 SdHoareTripleChecker+Invalid, 62 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 57 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-15 13:12:26,737 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [183 Valid, 603 Invalid, 62 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 57 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-15 13:12:26,812 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7221 states. [2022-03-15 13:12:26,903 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7221 to 5761. [2022-03-15 13:12:26,912 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5761 states, 5760 states have (on average 3.308333333333333) internal successors, (19056), 5760 states have internal predecessors, (19056), 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) [2022-03-15 13:12:26,928 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5761 states to 5761 states and 19056 transitions. [2022-03-15 13:12:26,928 INFO L78 Accepts]: Start accepts. Automaton has 5761 states and 19056 transitions. Word has length 58 [2022-03-15 13:12:26,928 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:12:26,928 INFO L470 AbstractCegarLoop]: Abstraction has 5761 states and 19056 transitions. [2022-03-15 13:12:26,928 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.285714285714286) internal successors, (58), 7 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) [2022-03-15 13:12:26,928 INFO L276 IsEmpty]: Start isEmpty. Operand 5761 states and 19056 transitions. [2022-03-15 13:12:26,940 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2022-03-15 13:12:26,940 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:12:26,940 INFO L514 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, 1] [2022-03-15 13:12:26,940 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-03-15 13:12:26,941 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-15 13:12:26,941 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:12:26,941 INFO L85 PathProgramCache]: Analyzing trace with hash -1773920470, now seen corresponding path program 1 times [2022-03-15 13:12:26,941 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:12:26,941 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [672917650] [2022-03-15 13:12:26,941 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:12:26,941 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:12:26,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:12:27,052 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:12:27,053 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:12:27,053 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [672917650] [2022-03-15 13:12:27,053 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [672917650] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:12:27,054 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:12:27,054 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-15 13:12:27,054 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1120946698] [2022-03-15 13:12:27,054 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:12:27,055 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-03-15 13:12:27,055 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:12:27,055 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-03-15 13:12:27,055 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-03-15 13:12:27,056 INFO L87 Difference]: Start difference. First operand 5761 states and 19056 transitions. Second operand has 7 states, 7 states have (on average 8.428571428571429) internal successors, (59), 7 states have internal predecessors, (59), 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) [2022-03-15 13:12:27,227 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:12:27,227 INFO L93 Difference]: Finished difference Result 6811 states and 22133 transitions. [2022-03-15 13:12:27,227 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-15 13:12:27,228 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.428571428571429) internal successors, (59), 7 states have internal predecessors, (59), 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 59 [2022-03-15 13:12:27,228 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:12:27,236 INFO L225 Difference]: With dead ends: 6811 [2022-03-15 13:12:27,236 INFO L226 Difference]: Without dead ends: 2856 [2022-03-15 13:12:27,236 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182 [2022-03-15 13:12:27,238 INFO L933 BasicCegarLoop]: 113 mSDtfsCounter, 182 mSDsluCounter, 377 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 182 SdHoareTripleChecker+Valid, 480 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-15 13:12:27,238 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [182 Valid, 480 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-15 13:12:27,244 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2856 states. [2022-03-15 13:12:27,282 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2856 to 2856. [2022-03-15 13:12:27,286 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2856 states, 2855 states have (on average 3.1078809106830123) internal successors, (8873), 2855 states have internal predecessors, (8873), 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) [2022-03-15 13:12:27,292 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2856 states to 2856 states and 8873 transitions. [2022-03-15 13:12:27,292 INFO L78 Accepts]: Start accepts. Automaton has 2856 states and 8873 transitions. Word has length 59 [2022-03-15 13:12:27,292 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:12:27,292 INFO L470 AbstractCegarLoop]: Abstraction has 2856 states and 8873 transitions. [2022-03-15 13:12:27,292 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.428571428571429) internal successors, (59), 7 states have internal predecessors, (59), 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) [2022-03-15 13:12:27,292 INFO L276 IsEmpty]: Start isEmpty. Operand 2856 states and 8873 transitions. [2022-03-15 13:12:27,297 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2022-03-15 13:12:27,297 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:12:27,297 INFO L514 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, 1, 1, 1] [2022-03-15 13:12:27,297 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-03-15 13:12:27,297 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-15 13:12:27,298 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:12:27,298 INFO L85 PathProgramCache]: Analyzing trace with hash -1558244569, now seen corresponding path program 1 times [2022-03-15 13:12:27,299 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:12:27,299 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1121794566] [2022-03-15 13:12:27,299 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:12:27,299 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:12:27,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:12:27,396 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:12:27,396 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:12:27,396 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1121794566] [2022-03-15 13:12:27,396 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1121794566] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:12:27,396 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:12:27,396 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-03-15 13:12:27,396 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [932954781] [2022-03-15 13:12:27,397 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:12:27,397 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-03-15 13:12:27,397 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:12:27,397 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-03-15 13:12:27,397 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-03-15 13:12:27,397 INFO L87 Difference]: Start difference. First operand 2856 states and 8873 transitions. Second operand has 6 states, 6 states have (on average 10.166666666666666) internal successors, (61), 6 states have internal predecessors, (61), 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) [2022-03-15 13:12:27,471 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:12:27,472 INFO L93 Difference]: Finished difference Result 3425 states and 10507 transitions. [2022-03-15 13:12:27,472 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 13:12:27,472 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.166666666666666) internal successors, (61), 6 states have internal predecessors, (61), 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 61 [2022-03-15 13:12:27,472 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:12:27,479 INFO L225 Difference]: With dead ends: 3425 [2022-03-15 13:12:27,479 INFO L226 Difference]: Without dead ends: 2555 [2022-03-15 13:12:27,480 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2022-03-15 13:12:27,483 INFO L933 BasicCegarLoop]: 93 mSDtfsCounter, 140 mSDsluCounter, 265 mSDsCounter, 0 mSdLazyCounter, 54 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 140 SdHoareTripleChecker+Valid, 350 SdHoareTripleChecker+Invalid, 65 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 54 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-15 13:12:27,483 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [140 Valid, 350 Invalid, 65 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 54 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-15 13:12:27,488 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2555 states. [2022-03-15 13:12:27,521 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2555 to 2555. [2022-03-15 13:12:27,524 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2555 states, 2554 states have (on average 3.0469851213782304) internal successors, (7782), 2554 states have internal predecessors, (7782), 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) [2022-03-15 13:12:27,530 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2555 states to 2555 states and 7782 transitions. [2022-03-15 13:12:27,530 INFO L78 Accepts]: Start accepts. Automaton has 2555 states and 7782 transitions. Word has length 61 [2022-03-15 13:12:27,531 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:12:27,531 INFO L470 AbstractCegarLoop]: Abstraction has 2555 states and 7782 transitions. [2022-03-15 13:12:27,531 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.166666666666666) internal successors, (61), 6 states have internal predecessors, (61), 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) [2022-03-15 13:12:27,531 INFO L276 IsEmpty]: Start isEmpty. Operand 2555 states and 7782 transitions. [2022-03-15 13:12:27,536 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2022-03-15 13:12:27,536 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:12:27,536 INFO L514 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, 1, 1, 1, 1] [2022-03-15 13:12:27,536 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-03-15 13:12:27,536 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-15 13:12:27,537 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:12:27,537 INFO L85 PathProgramCache]: Analyzing trace with hash -726345812, now seen corresponding path program 1 times [2022-03-15 13:12:27,537 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:12:27,537 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [631271459] [2022-03-15 13:12:27,537 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:12:27,537 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:12:27,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:12:27,609 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:12:27,610 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:12:27,610 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [631271459] [2022-03-15 13:12:27,610 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [631271459] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:12:27,610 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:12:27,610 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-15 13:12:27,610 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1955449372] [2022-03-15 13:12:27,610 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:12:27,611 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-03-15 13:12:27,611 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:12:27,611 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-03-15 13:12:27,611 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-03-15 13:12:27,611 INFO L87 Difference]: Start difference. First operand 2555 states and 7782 transitions. Second operand has 7 states, 7 states have (on average 8.857142857142858) internal successors, (62), 7 states have internal predecessors, (62), 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) [2022-03-15 13:12:27,703 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:12:27,704 INFO L93 Difference]: Finished difference Result 2432 states and 7190 transitions. [2022-03-15 13:12:27,704 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-15 13:12:27,704 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.857142857142858) internal successors, (62), 7 states have internal predecessors, (62), 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 62 [2022-03-15 13:12:27,704 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:12:27,708 INFO L225 Difference]: With dead ends: 2432 [2022-03-15 13:12:27,708 INFO L226 Difference]: Without dead ends: 1745 [2022-03-15 13:12:27,709 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=49, Invalid=107, Unknown=0, NotChecked=0, Total=156 [2022-03-15 13:12:27,711 INFO L933 BasicCegarLoop]: 93 mSDtfsCounter, 210 mSDsluCounter, 321 mSDsCounter, 0 mSdLazyCounter, 67 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 210 SdHoareTripleChecker+Valid, 405 SdHoareTripleChecker+Invalid, 84 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 67 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-15 13:12:27,711 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [210 Valid, 405 Invalid, 84 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 67 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-15 13:12:27,715 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1745 states. [2022-03-15 13:12:27,736 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1745 to 1745. [2022-03-15 13:12:27,737 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1745 states, 1744 states have (on average 2.8916284403669725) internal successors, (5043), 1744 states have internal predecessors, (5043), 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) [2022-03-15 13:12:27,741 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1745 states to 1745 states and 5043 transitions. [2022-03-15 13:12:27,741 INFO L78 Accepts]: Start accepts. Automaton has 1745 states and 5043 transitions. Word has length 62 [2022-03-15 13:12:27,741 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:12:27,741 INFO L470 AbstractCegarLoop]: Abstraction has 1745 states and 5043 transitions. [2022-03-15 13:12:27,741 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.857142857142858) internal successors, (62), 7 states have internal predecessors, (62), 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) [2022-03-15 13:12:27,741 INFO L276 IsEmpty]: Start isEmpty. Operand 1745 states and 5043 transitions. [2022-03-15 13:12:27,744 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2022-03-15 13:12:27,744 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:12:27,744 INFO L514 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, 1, 1, 1, 1, 1, 1] [2022-03-15 13:12:27,744 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-03-15 13:12:27,745 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-15 13:12:27,745 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:12:27,746 INFO L85 PathProgramCache]: Analyzing trace with hash -1684131233, now seen corresponding path program 1 times [2022-03-15 13:12:27,746 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:12:27,746 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [465772736] [2022-03-15 13:12:27,746 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:12:27,746 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:12:27,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:12:27,828 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:12:27,829 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:12:27,829 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [465772736] [2022-03-15 13:12:27,829 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [465772736] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:12:27,829 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:12:27,829 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 13:12:27,829 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [973050397] [2022-03-15 13:12:27,829 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:12:27,830 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-15 13:12:27,830 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:12:27,830 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-15 13:12:27,830 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2022-03-15 13:12:27,830 INFO L87 Difference]: Start difference. First operand 1745 states and 5043 transitions. Second operand has 8 states, 8 states have (on average 8.0) internal successors, (64), 8 states have internal predecessors, (64), 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) [2022-03-15 13:12:27,887 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:12:27,887 INFO L93 Difference]: Finished difference Result 1196 states and 3357 transitions. [2022-03-15 13:12:27,887 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-15 13:12:27,887 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 8.0) internal successors, (64), 8 states have internal predecessors, (64), 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 64 [2022-03-15 13:12:27,888 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:12:27,888 INFO L225 Difference]: With dead ends: 1196 [2022-03-15 13:12:27,888 INFO L226 Difference]: Without dead ends: 0 [2022-03-15 13:12:27,888 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2022-03-15 13:12:27,888 INFO L933 BasicCegarLoop]: 74 mSDtfsCounter, 254 mSDsluCounter, 242 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 254 SdHoareTripleChecker+Valid, 307 SdHoareTripleChecker+Invalid, 56 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-15 13:12:27,889 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [254 Valid, 307 Invalid, 56 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-15 13:12:27,889 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-03-15 13:12:27,889 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-03-15 13:12:27,889 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) [2022-03-15 13:12:27,889 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-03-15 13:12:27,889 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 64 [2022-03-15 13:12:27,890 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:12:27,890 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-03-15 13:12:27,890 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 8.0) internal successors, (64), 8 states have internal predecessors, (64), 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) [2022-03-15 13:12:27,890 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-03-15 13:12:27,890 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-03-15 13:12:27,892 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 4 remaining) [2022-03-15 13:12:27,892 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATION (2 of 4 remaining) [2022-03-15 13:12:27,892 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATION (1 of 4 remaining) [2022-03-15 13:12:27,892 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATION (0 of 4 remaining) [2022-03-15 13:12:27,892 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-03-15 13:12:27,894 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:12:27,896 INFO L230 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-03-15 13:12:27,896 INFO L180 ceAbstractionStarter]: Computing trace abstraction results [2022-03-15 13:12:27,897 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.03 01:12:27 BasicIcfg [2022-03-15 13:12:27,897 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-03-15 13:12:27,898 INFO L158 Benchmark]: Toolchain (without parser) took 5181.43ms. Allocated memory was 183.5MB in the beginning and 792.7MB in the end (delta: 609.2MB). Free memory was 126.0MB in the beginning and 400.4MB in the end (delta: -274.4MB). Peak memory consumption was 334.0MB. Max. memory is 8.0GB. [2022-03-15 13:12:27,898 INFO L158 Benchmark]: CDTParser took 0.09ms. Allocated memory is still 183.5MB. Free memory is still 143.6MB. There was no memory consumed. Max. memory is 8.0GB. [2022-03-15 13:12:27,898 INFO L158 Benchmark]: CACSL2BoogieTranslator took 379.77ms. Allocated memory was 183.5MB in the beginning and 254.8MB in the end (delta: 71.3MB). Free memory was 125.8MB in the beginning and 216.5MB in the end (delta: -90.8MB). Peak memory consumption was 10.3MB. Max. memory is 8.0GB. [2022-03-15 13:12:27,898 INFO L158 Benchmark]: Boogie Procedure Inliner took 28.93ms. Allocated memory is still 254.8MB. Free memory was 216.2MB in the beginning and 214.5MB in the end (delta: 1.7MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-03-15 13:12:27,899 INFO L158 Benchmark]: Boogie Preprocessor took 13.93ms. Allocated memory is still 254.8MB. Free memory was 214.4MB in the beginning and 213.1MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-03-15 13:12:27,899 INFO L158 Benchmark]: RCFGBuilder took 305.22ms. Allocated memory is still 254.8MB. Free memory was 213.1MB in the beginning and 200.5MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. [2022-03-15 13:12:27,899 INFO L158 Benchmark]: TraceAbstraction took 4449.49ms. Allocated memory was 254.8MB in the beginning and 792.7MB in the end (delta: 537.9MB). Free memory was 200.2MB in the beginning and 400.4MB in the end (delta: -200.2MB). Peak memory consumption was 338.4MB. Max. memory is 8.0GB. [2022-03-15 13:12:27,900 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.09ms. Allocated memory is still 183.5MB. Free memory is still 143.6MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 379.77ms. Allocated memory was 183.5MB in the beginning and 254.8MB in the end (delta: 71.3MB). Free memory was 125.8MB in the beginning and 216.5MB in the end (delta: -90.8MB). Peak memory consumption was 10.3MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 28.93ms. Allocated memory is still 254.8MB. Free memory was 216.2MB in the beginning and 214.5MB in the end (delta: 1.7MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * Boogie Preprocessor took 13.93ms. Allocated memory is still 254.8MB. Free memory was 214.4MB in the beginning and 213.1MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 305.22ms. Allocated memory is still 254.8MB. Free memory was 213.1MB in the beginning and 200.5MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. * TraceAbstraction took 4449.49ms. Allocated memory was 254.8MB in the beginning and 792.7MB in the end (delta: 537.9MB). Free memory was 200.2MB in the beginning and 400.4MB in the end (delta: -200.2MB). Peak memory consumption was 338.4MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 18]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 114 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 4.4s, OverallIterations: 8, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.1s, AutomataDifference: 1.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.2s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1499 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1499 mSDsluCounter, 3894 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 3086 mSDsCounter, 64 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 432 IncrementalHoareTripleChecker+Invalid, 496 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 64 mSolverCounterUnsat, 892 mSDtfsCounter, 432 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 107 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 91 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 124 ImplicationChecksByTransitivity, 0.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=7291occurred in iteration=1, InterpolantAutomatonStates: 85, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 1.1s AutomataMinimizationTime, 8 MinimizatonAttempts, 6236 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.8s InterpolantComputationTime, 470 NumberOfCodeBlocks, 470 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 462 ConstructedInterpolants, 0 QuantifiedInterpolants, 2082 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 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! [2022-03-15 13:12:27,925 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...