/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc config/AutomizerReach.xml -s config/svcomp-Reach-64bit-Automizer_Default.epf -i ../sv-benchmarks/c/pthread-wmm/safe020_tso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-4f750a8 [2020-12-22 11:10:36,300 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-22 11:10:36,303 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-22 11:10:36,341 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-22 11:10:36,342 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-22 11:10:36,343 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-22 11:10:36,346 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-22 11:10:36,370 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-22 11:10:36,378 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-22 11:10:36,380 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-22 11:10:36,392 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-22 11:10:36,394 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-22 11:10:36,397 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-22 11:10:36,403 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-22 11:10:36,404 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-22 11:10:36,409 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-22 11:10:36,411 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-22 11:10:36,415 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-22 11:10:36,417 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-22 11:10:36,420 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-22 11:10:36,422 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-22 11:10:36,423 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-22 11:10:36,425 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-22 11:10:36,426 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-22 11:10:36,429 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-22 11:10:36,429 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-22 11:10:36,430 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-22 11:10:36,431 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-22 11:10:36,431 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-22 11:10:36,433 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-22 11:10:36,433 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-22 11:10:36,434 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-22 11:10:36,435 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-22 11:10:36,436 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-22 11:10:36,437 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-22 11:10:36,438 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-22 11:10:36,439 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-22 11:10:36,439 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-22 11:10:36,439 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-22 11:10:36,441 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-22 11:10:36,441 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-22 11:10:36,443 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2020-12-22 11:10:36,474 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-22 11:10:36,475 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-22 11:10:36,476 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-22 11:10:36,477 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-22 11:10:36,477 INFO L138 SettingsManager]: * Use SBE=true [2020-12-22 11:10:36,477 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-22 11:10:36,478 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-22 11:10:36,478 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-22 11:10:36,478 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-22 11:10:36,478 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-22 11:10:36,478 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-22 11:10:36,479 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-22 11:10:36,479 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-22 11:10:36,479 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-22 11:10:36,479 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-22 11:10:36,479 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-22 11:10:36,480 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-22 11:10:36,480 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-22 11:10:36,480 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-22 11:10:36,480 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-22 11:10:36,480 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-22 11:10:36,481 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-12-22 11:10:36,481 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-22 11:10:36,481 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-22 11:10:36,481 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-22 11:10:36,481 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-12-22 11:10:36,999 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-22 11:10:37,054 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-22 11:10:37,058 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-22 11:10:37,060 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-22 11:10:37,061 INFO L275 PluginConnector]: CDTParser initialized [2020-12-22 11:10:37,062 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-wmm/safe020_tso.oepc.i [2020-12-22 11:10:37,149 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e6346f2fc/a67b8987f70447e082bdfd2aa8668762/FLAGc7d8c18e9 [2020-12-22 11:10:37,897 INFO L306 CDTParser]: Found 1 translation units. [2020-12-22 11:10:37,898 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/safe020_tso.oepc.i [2020-12-22 11:10:37,926 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e6346f2fc/a67b8987f70447e082bdfd2aa8668762/FLAGc7d8c18e9 [2020-12-22 11:10:38,154 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e6346f2fc/a67b8987f70447e082bdfd2aa8668762 [2020-12-22 11:10:38,159 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-22 11:10:38,161 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-22 11:10:38,165 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-22 11:10:38,166 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-22 11:10:38,174 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-22 11:10:38,175 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 11:10:38" (1/1) ... [2020-12-22 11:10:38,177 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@77cfc7ba and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:10:38, skipping insertion in model container [2020-12-22 11:10:38,177 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 11:10:38" (1/1) ... [2020-12-22 11:10:38,190 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-22 11:10:38,267 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-22 11:10:38,446 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/safe020_tso.oepc.i[950,963] [2020-12-22 11:10:38,664 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-22 11:10:38,679 INFO L203 MainTranslator]: Completed pre-run [2020-12-22 11:10:38,713 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/safe020_tso.oepc.i[950,963] [2020-12-22 11:10:38,801 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-22 11:10:38,911 INFO L208 MainTranslator]: Completed translation [2020-12-22 11:10:38,912 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:10:38 WrapperNode [2020-12-22 11:10:38,912 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-22 11:10:38,914 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-22 11:10:38,915 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-22 11:10:38,918 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-22 11:10:38,929 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:10:38" (1/1) ... [2020-12-22 11:10:38,969 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:10:38" (1/1) ... [2020-12-22 11:10:39,018 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-22 11:10:39,022 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-22 11:10:39,022 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-22 11:10:39,023 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-22 11:10:39,035 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:10:38" (1/1) ... [2020-12-22 11:10:39,035 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:10:38" (1/1) ... [2020-12-22 11:10:39,054 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:10:38" (1/1) ... [2020-12-22 11:10:39,054 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:10:38" (1/1) ... [2020-12-22 11:10:39,070 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:10:38" (1/1) ... [2020-12-22 11:10:39,079 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:10:38" (1/1) ... [2020-12-22 11:10:39,084 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:10:38" (1/1) ... [2020-12-22 11:10:39,091 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-22 11:10:39,095 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-22 11:10:39,095 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-22 11:10:39,095 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-22 11:10:39,101 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:10:38" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-22 11:10:39,229 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-12-22 11:10:39,230 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-12-22 11:10:39,230 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-22 11:10:39,230 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-12-22 11:10:39,230 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-12-22 11:10:39,231 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-12-22 11:10:39,231 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-12-22 11:10:39,231 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-12-22 11:10:39,231 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-12-22 11:10:39,231 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-12-22 11:10:39,232 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-22 11:10:39,232 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-12-22 11:10:39,232 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-22 11:10:39,232 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-22 11:10:39,234 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-12-22 11:10:39,717 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-22 11:10:39,718 INFO L299 CfgBuilder]: Removed 8 assume(true) statements. [2020-12-22 11:10:39,721 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 11:10:39 BoogieIcfgContainer [2020-12-22 11:10:39,721 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-22 11:10:39,723 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-22 11:10:39,724 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-22 11:10:39,729 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-22 11:10:39,729 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.12 11:10:38" (1/3) ... [2020-12-22 11:10:39,730 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5aaf6724 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 11:10:39, skipping insertion in model container [2020-12-22 11:10:39,731 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:10:38" (2/3) ... [2020-12-22 11:10:39,731 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5aaf6724 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 11:10:39, skipping insertion in model container [2020-12-22 11:10:39,732 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 11:10:39" (3/3) ... [2020-12-22 11:10:39,734 INFO L111 eAbstractionObserver]: Analyzing ICFG safe020_tso.oepc.i [2020-12-22 11:10:39,743 WARN L142 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-12-22 11:10:39,743 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-22 11:10:39,750 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-12-22 11:10:39,751 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-12-22 11:10:39,791 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:10:39,791 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:10:39,792 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:10:39,792 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:10:39,793 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:10:39,793 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:10:39,793 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:10:39,793 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:10:39,794 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:10:39,794 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:10:39,795 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:10:39,795 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:10:39,796 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:10:39,796 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:10:39,796 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:10:39,796 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:10:39,796 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:10:39,797 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:10:39,797 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:10:39,797 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:10:39,811 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:10:39,811 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:10:39,812 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:10:39,812 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:10:39,813 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:10:39,813 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:10:39,813 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:10:39,813 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:10:39,814 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:10:39,814 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:10:39,814 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:10:39,814 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:10:39,815 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:10:39,815 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:10:39,815 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:10:39,816 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:10:39,819 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:10:39,819 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:10:39,820 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:10:39,820 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:10:39,827 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:10:39,827 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:10:39,828 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:10:39,828 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:10:39,831 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:10:39,831 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:10:39,831 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:10:39,832 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:10:39,834 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2020-12-22 11:10:39,861 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-12-22 11:10:39,893 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-22 11:10:39,893 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-22 11:10:39,893 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-22 11:10:39,893 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-22 11:10:39,894 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-22 11:10:39,894 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-22 11:10:39,894 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-22 11:10:39,894 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-22 11:10:39,911 INFO L120 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2020-12-22 11:10:39,915 INFO L135 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 81 places, 73 transitions, 161 flow [2020-12-22 11:10:39,920 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 81 places, 73 transitions, 161 flow [2020-12-22 11:10:39,924 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 81 places, 73 transitions, 161 flow [2020-12-22 11:10:39,988 INFO L129 PetriNetUnfolder]: 2/70 cut-off events. [2020-12-22 11:10:39,989 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-12-22 11:10:40,007 INFO L84 FinitePrefix]: Finished finitePrefix Result has 80 conditions, 70 events. 2/70 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 47 event pairs, 0 based on Foata normal form. 0/67 useless extension candidates. Maximal degree in co-relation 55. Up to 2 conditions per place. [2020-12-22 11:10:40,014 INFO L116 LiptonReduction]: Number of co-enabled transitions 1212 [2020-12-22 11:10:43,190 WARN L197 SmtUtils]: Spent 232.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 74 [2020-12-22 11:10:43,299 WARN L197 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 70 [2020-12-22 11:10:43,517 WARN L197 SmtUtils]: Spent 216.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 74 [2020-12-22 11:10:43,620 WARN L197 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 70 [2020-12-22 11:10:43,812 INFO L131 LiptonReduction]: Checked pairs total: 2226 [2020-12-22 11:10:43,813 INFO L133 LiptonReduction]: Total number of compositions: 66 [2020-12-22 11:10:43,820 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 30 places, 20 transitions, 55 flow [2020-12-22 11:10:43,844 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 226 states. [2020-12-22 11:10:43,847 INFO L276 IsEmpty]: Start isEmpty. Operand 226 states. [2020-12-22 11:10:43,854 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-12-22 11:10:43,855 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 11:10:43,856 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 11:10:43,856 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 11:10:43,863 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 11:10:43,863 INFO L82 PathProgramCache]: Analyzing trace with hash -938351108, now seen corresponding path program 1 times [2020-12-22 11:10:43,874 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 11:10:43,875 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1030888590] [2020-12-22 11:10:43,876 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 11:10:44,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 11:10:44,196 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 11:10:44,197 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1030888590] [2020-12-22 11:10:44,199 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 11:10:44,199 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-12-22 11:10:44,201 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [907870510] [2020-12-22 11:10:44,207 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 11:10:44,207 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 11:10:44,229 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 11:10:44,230 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 11:10:44,233 INFO L87 Difference]: Start difference. First operand 226 states. Second operand 3 states. [2020-12-22 11:10:44,312 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 11:10:44,313 INFO L93 Difference]: Finished difference Result 316 states and 835 transitions. [2020-12-22 11:10:44,314 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 11:10:44,315 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2020-12-22 11:10:44,316 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 11:10:44,342 INFO L225 Difference]: With dead ends: 316 [2020-12-22 11:10:44,344 INFO L226 Difference]: Without dead ends: 205 [2020-12-22 11:10:44,347 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 11:10:44,387 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 205 states. [2020-12-22 11:10:44,453 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 205 to 187. [2020-12-22 11:10:44,457 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 187 states. [2020-12-22 11:10:44,466 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 187 states to 187 states and 485 transitions. [2020-12-22 11:10:44,469 INFO L78 Accepts]: Start accepts. Automaton has 187 states and 485 transitions. Word has length 8 [2020-12-22 11:10:44,471 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 11:10:44,471 INFO L481 AbstractCegarLoop]: Abstraction has 187 states and 485 transitions. [2020-12-22 11:10:44,471 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 11:10:44,472 INFO L276 IsEmpty]: Start isEmpty. Operand 187 states and 485 transitions. [2020-12-22 11:10:44,474 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-12-22 11:10:44,474 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 11:10:44,475 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 11:10:44,475 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-22 11:10:44,476 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 11:10:44,479 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 11:10:44,479 INFO L82 PathProgramCache]: Analyzing trace with hash 395784729, now seen corresponding path program 1 times [2020-12-22 11:10:44,480 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 11:10:44,480 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [302491816] [2020-12-22 11:10:44,480 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 11:10:44,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 11:10:44,615 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 11:10:44,620 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [302491816] [2020-12-22 11:10:44,621 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 11:10:44,621 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-22 11:10:44,621 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [218441072] [2020-12-22 11:10:44,622 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-22 11:10:44,623 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 11:10:44,625 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-22 11:10:44,626 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-12-22 11:10:44,626 INFO L87 Difference]: Start difference. First operand 187 states and 485 transitions. Second operand 4 states. [2020-12-22 11:10:44,650 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 11:10:44,651 INFO L93 Difference]: Finished difference Result 196 states and 488 transitions. [2020-12-22 11:10:44,652 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-22 11:10:44,652 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 9 [2020-12-22 11:10:44,652 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 11:10:44,655 INFO L225 Difference]: With dead ends: 196 [2020-12-22 11:10:44,655 INFO L226 Difference]: Without dead ends: 196 [2020-12-22 11:10:44,656 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-12-22 11:10:44,658 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 196 states. [2020-12-22 11:10:44,679 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 196 to 178. [2020-12-22 11:10:44,679 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 178 states. [2020-12-22 11:10:44,682 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 178 states to 178 states and 455 transitions. [2020-12-22 11:10:44,682 INFO L78 Accepts]: Start accepts. Automaton has 178 states and 455 transitions. Word has length 9 [2020-12-22 11:10:44,683 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 11:10:44,683 INFO L481 AbstractCegarLoop]: Abstraction has 178 states and 455 transitions. [2020-12-22 11:10:44,683 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-22 11:10:44,683 INFO L276 IsEmpty]: Start isEmpty. Operand 178 states and 455 transitions. [2020-12-22 11:10:44,684 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-12-22 11:10:44,685 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 11:10:44,685 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 11:10:44,686 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-12-22 11:10:44,686 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 11:10:44,687 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 11:10:44,687 INFO L82 PathProgramCache]: Analyzing trace with hash 975885903, now seen corresponding path program 1 times [2020-12-22 11:10:44,687 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 11:10:44,688 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1706613342] [2020-12-22 11:10:44,688 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 11:10:44,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 11:10:44,878 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 11:10:44,879 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1706613342] [2020-12-22 11:10:44,879 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 11:10:44,879 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-22 11:10:44,879 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [87573898] [2020-12-22 11:10:44,880 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-22 11:10:44,880 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 11:10:44,881 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-22 11:10:44,881 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-12-22 11:10:44,882 INFO L87 Difference]: Start difference. First operand 178 states and 455 transitions. Second operand 4 states. [2020-12-22 11:10:44,902 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 11:10:44,903 INFO L93 Difference]: Finished difference Result 187 states and 464 transitions. [2020-12-22 11:10:44,903 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-22 11:10:44,904 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 9 [2020-12-22 11:10:44,904 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 11:10:44,907 INFO L225 Difference]: With dead ends: 187 [2020-12-22 11:10:44,907 INFO L226 Difference]: Without dead ends: 187 [2020-12-22 11:10:44,908 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-12-22 11:10:44,910 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 187 states. [2020-12-22 11:10:44,920 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 187 to 169. [2020-12-22 11:10:44,921 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 169 states. [2020-12-22 11:10:44,922 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 169 states to 169 states and 431 transitions. [2020-12-22 11:10:44,924 INFO L78 Accepts]: Start accepts. Automaton has 169 states and 431 transitions. Word has length 9 [2020-12-22 11:10:44,924 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 11:10:44,925 INFO L481 AbstractCegarLoop]: Abstraction has 169 states and 431 transitions. [2020-12-22 11:10:44,925 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-22 11:10:44,925 INFO L276 IsEmpty]: Start isEmpty. Operand 169 states and 431 transitions. [2020-12-22 11:10:44,926 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-12-22 11:10:44,926 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 11:10:44,927 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 11:10:44,927 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-12-22 11:10:44,927 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 11:10:44,928 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 11:10:44,928 INFO L82 PathProgramCache]: Analyzing trace with hash -615576110, now seen corresponding path program 1 times [2020-12-22 11:10:44,928 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 11:10:44,928 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1079638126] [2020-12-22 11:10:44,928 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 11:10:44,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 11:10:45,020 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 11:10:45,021 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1079638126] [2020-12-22 11:10:45,021 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 11:10:45,022 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-22 11:10:45,023 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [425465641] [2020-12-22 11:10:45,024 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-22 11:10:45,024 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 11:10:45,027 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-22 11:10:45,028 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-22 11:10:45,028 INFO L87 Difference]: Start difference. First operand 169 states and 431 transitions. Second operand 4 states. [2020-12-22 11:10:45,090 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 11:10:45,090 INFO L93 Difference]: Finished difference Result 209 states and 515 transitions. [2020-12-22 11:10:45,091 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-22 11:10:45,091 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 10 [2020-12-22 11:10:45,091 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 11:10:45,095 INFO L225 Difference]: With dead ends: 209 [2020-12-22 11:10:45,095 INFO L226 Difference]: Without dead ends: 197 [2020-12-22 11:10:45,096 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-12-22 11:10:45,098 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 197 states. [2020-12-22 11:10:45,129 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 197 to 175. [2020-12-22 11:10:45,129 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 175 states. [2020-12-22 11:10:45,131 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 175 states to 175 states and 446 transitions. [2020-12-22 11:10:45,131 INFO L78 Accepts]: Start accepts. Automaton has 175 states and 446 transitions. Word has length 10 [2020-12-22 11:10:45,132 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 11:10:45,132 INFO L481 AbstractCegarLoop]: Abstraction has 175 states and 446 transitions. [2020-12-22 11:10:45,132 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-22 11:10:45,132 INFO L276 IsEmpty]: Start isEmpty. Operand 175 states and 446 transitions. [2020-12-22 11:10:45,135 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-12-22 11:10:45,135 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 11:10:45,135 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 11:10:45,136 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-12-22 11:10:45,139 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 11:10:45,139 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 11:10:45,140 INFO L82 PathProgramCache]: Analyzing trace with hash 187690604, now seen corresponding path program 2 times [2020-12-22 11:10:45,140 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 11:10:45,140 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1823680742] [2020-12-22 11:10:45,140 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 11:10:45,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 11:10:45,264 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 11:10:45,265 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1823680742] [2020-12-22 11:10:45,265 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 11:10:45,265 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 11:10:45,266 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [294266688] [2020-12-22 11:10:45,266 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-22 11:10:45,267 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 11:10:45,267 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-22 11:10:45,267 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-12-22 11:10:45,268 INFO L87 Difference]: Start difference. First operand 175 states and 446 transitions. Second operand 5 states. [2020-12-22 11:10:45,301 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 11:10:45,301 INFO L93 Difference]: Finished difference Result 234 states and 564 transitions. [2020-12-22 11:10:45,302 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-22 11:10:45,302 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 10 [2020-12-22 11:10:45,303 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 11:10:45,304 INFO L225 Difference]: With dead ends: 234 [2020-12-22 11:10:45,304 INFO L226 Difference]: Without dead ends: 144 [2020-12-22 11:10:45,305 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-12-22 11:10:45,306 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 144 states. [2020-12-22 11:10:45,310 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 144 to 132. [2020-12-22 11:10:45,311 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 132 states. [2020-12-22 11:10:45,312 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 132 states to 132 states and 315 transitions. [2020-12-22 11:10:45,312 INFO L78 Accepts]: Start accepts. Automaton has 132 states and 315 transitions. Word has length 10 [2020-12-22 11:10:45,312 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 11:10:45,313 INFO L481 AbstractCegarLoop]: Abstraction has 132 states and 315 transitions. [2020-12-22 11:10:45,313 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-22 11:10:45,313 INFO L276 IsEmpty]: Start isEmpty. Operand 132 states and 315 transitions. [2020-12-22 11:10:45,314 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-12-22 11:10:45,314 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 11:10:45,314 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 11:10:45,314 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-12-22 11:10:45,315 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 11:10:45,315 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 11:10:45,315 INFO L82 PathProgramCache]: Analyzing trace with hash 1342775669, now seen corresponding path program 1 times [2020-12-22 11:10:45,316 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 11:10:45,316 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [625429781] [2020-12-22 11:10:45,316 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 11:10:45,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 11:10:45,381 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 11:10:45,382 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [625429781] [2020-12-22 11:10:45,382 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 11:10:45,382 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-22 11:10:45,382 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [655177490] [2020-12-22 11:10:45,383 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-22 11:10:45,383 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 11:10:45,383 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-22 11:10:45,384 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-22 11:10:45,384 INFO L87 Difference]: Start difference. First operand 132 states and 315 transitions. Second operand 4 states. [2020-12-22 11:10:45,422 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 11:10:45,422 INFO L93 Difference]: Finished difference Result 155 states and 339 transitions. [2020-12-22 11:10:45,423 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-22 11:10:45,423 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2020-12-22 11:10:45,423 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 11:10:45,424 INFO L225 Difference]: With dead ends: 155 [2020-12-22 11:10:45,424 INFO L226 Difference]: Without dead ends: 115 [2020-12-22 11:10:45,425 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-12-22 11:10:45,426 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115 states. [2020-12-22 11:10:45,429 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 115 to 115. [2020-12-22 11:10:45,429 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 115 states. [2020-12-22 11:10:45,430 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115 states to 115 states and 251 transitions. [2020-12-22 11:10:45,430 INFO L78 Accepts]: Start accepts. Automaton has 115 states and 251 transitions. Word has length 11 [2020-12-22 11:10:45,430 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 11:10:45,430 INFO L481 AbstractCegarLoop]: Abstraction has 115 states and 251 transitions. [2020-12-22 11:10:45,430 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-22 11:10:45,431 INFO L276 IsEmpty]: Start isEmpty. Operand 115 states and 251 transitions. [2020-12-22 11:10:45,431 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-12-22 11:10:45,431 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 11:10:45,432 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 11:10:45,432 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-12-22 11:10:45,432 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 11:10:45,432 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 11:10:45,433 INFO L82 PathProgramCache]: Analyzing trace with hash -1283997363, now seen corresponding path program 1 times [2020-12-22 11:10:45,433 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 11:10:45,433 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1383867175] [2020-12-22 11:10:45,433 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 11:10:45,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 11:10:45,517 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 11:10:45,517 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1383867175] [2020-12-22 11:10:45,518 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 11:10:45,518 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 11:10:45,518 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [274235647] [2020-12-22 11:10:45,519 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-22 11:10:45,519 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 11:10:45,525 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-22 11:10:45,525 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-12-22 11:10:45,525 INFO L87 Difference]: Start difference. First operand 115 states and 251 transitions. Second operand 5 states. [2020-12-22 11:10:45,579 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 11:10:45,579 INFO L93 Difference]: Finished difference Result 116 states and 234 transitions. [2020-12-22 11:10:45,580 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-12-22 11:10:45,580 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 12 [2020-12-22 11:10:45,580 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 11:10:45,581 INFO L225 Difference]: With dead ends: 116 [2020-12-22 11:10:45,581 INFO L226 Difference]: Without dead ends: 89 [2020-12-22 11:10:45,582 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-12-22 11:10:45,582 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89 states. [2020-12-22 11:10:45,585 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89 to 89. [2020-12-22 11:10:45,585 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 89 states. [2020-12-22 11:10:45,586 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89 states to 89 states and 176 transitions. [2020-12-22 11:10:45,586 INFO L78 Accepts]: Start accepts. Automaton has 89 states and 176 transitions. Word has length 12 [2020-12-22 11:10:45,586 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 11:10:45,586 INFO L481 AbstractCegarLoop]: Abstraction has 89 states and 176 transitions. [2020-12-22 11:10:45,586 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-22 11:10:45,586 INFO L276 IsEmpty]: Start isEmpty. Operand 89 states and 176 transitions. [2020-12-22 11:10:45,587 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-12-22 11:10:45,587 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 11:10:45,587 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 11:10:45,588 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-12-22 11:10:45,588 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 11:10:45,588 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 11:10:45,589 INFO L82 PathProgramCache]: Analyzing trace with hash -1633997476, now seen corresponding path program 1 times [2020-12-22 11:10:45,589 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 11:10:45,589 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [919731071] [2020-12-22 11:10:45,589 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 11:10:45,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 11:10:45,657 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 11:10:45,658 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [919731071] [2020-12-22 11:10:45,658 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 11:10:45,658 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-22 11:10:45,659 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [403790744] [2020-12-22 11:10:45,659 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-22 11:10:45,659 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 11:10:45,660 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-22 11:10:45,660 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-12-22 11:10:45,661 INFO L87 Difference]: Start difference. First operand 89 states and 176 transitions. Second operand 6 states. [2020-12-22 11:10:45,710 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 11:10:45,710 INFO L93 Difference]: Finished difference Result 85 states and 166 transitions. [2020-12-22 11:10:45,713 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-12-22 11:10:45,713 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 14 [2020-12-22 11:10:45,714 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 11:10:45,714 INFO L225 Difference]: With dead ends: 85 [2020-12-22 11:10:45,714 INFO L226 Difference]: Without dead ends: 50 [2020-12-22 11:10:45,715 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2020-12-22 11:10:45,715 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2020-12-22 11:10:45,717 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 46. [2020-12-22 11:10:45,717 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 46 states. [2020-12-22 11:10:45,717 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 83 transitions. [2020-12-22 11:10:45,717 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 83 transitions. Word has length 14 [2020-12-22 11:10:45,718 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 11:10:45,718 INFO L481 AbstractCegarLoop]: Abstraction has 46 states and 83 transitions. [2020-12-22 11:10:45,718 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-12-22 11:10:45,718 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 83 transitions. [2020-12-22 11:10:45,718 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-12-22 11:10:45,719 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 11:10:45,719 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 11:10:45,719 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-12-22 11:10:45,719 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 11:10:45,720 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 11:10:45,720 INFO L82 PathProgramCache]: Analyzing trace with hash -1390745954, now seen corresponding path program 1 times [2020-12-22 11:10:45,720 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 11:10:45,720 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [213473738] [2020-12-22 11:10:45,721 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 11:10:45,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 11:10:45,788 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 11:10:45,789 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [213473738] [2020-12-22 11:10:45,789 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 11:10:45,790 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-22 11:10:45,790 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [652303916] [2020-12-22 11:10:45,790 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 11:10:45,790 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 11:10:45,791 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 11:10:45,791 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 11:10:45,791 INFO L87 Difference]: Start difference. First operand 46 states and 83 transitions. Second operand 3 states. [2020-12-22 11:10:45,799 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 11:10:45,799 INFO L93 Difference]: Finished difference Result 59 states and 104 transitions. [2020-12-22 11:10:45,800 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 11:10:45,800 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 16 [2020-12-22 11:10:45,801 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 11:10:45,801 INFO L225 Difference]: With dead ends: 59 [2020-12-22 11:10:45,801 INFO L226 Difference]: Without dead ends: 33 [2020-12-22 11:10:45,802 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 11:10:45,802 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2020-12-22 11:10:45,803 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 33. [2020-12-22 11:10:45,804 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33 states. [2020-12-22 11:10:45,804 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 51 transitions. [2020-12-22 11:10:45,805 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 51 transitions. Word has length 16 [2020-12-22 11:10:45,805 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 11:10:45,805 INFO L481 AbstractCegarLoop]: Abstraction has 33 states and 51 transitions. [2020-12-22 11:10:45,805 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 11:10:45,805 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 51 transitions. [2020-12-22 11:10:45,806 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-12-22 11:10:45,806 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 11:10:45,806 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 11:10:45,806 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-12-22 11:10:45,806 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 11:10:45,807 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 11:10:45,807 INFO L82 PathProgramCache]: Analyzing trace with hash -1414383408, now seen corresponding path program 2 times [2020-12-22 11:10:45,807 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 11:10:45,807 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [573394883] [2020-12-22 11:10:45,808 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 11:10:45,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 11:10:45,907 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 11:10:45,907 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [573394883] [2020-12-22 11:10:45,908 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 11:10:45,908 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 11:10:45,908 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2003260824] [2020-12-22 11:10:45,908 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-22 11:10:45,909 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 11:10:45,909 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-22 11:10:45,909 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-22 11:10:45,910 INFO L87 Difference]: Start difference. First operand 33 states and 51 transitions. Second operand 4 states. [2020-12-22 11:10:45,924 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 11:10:45,925 INFO L93 Difference]: Finished difference Result 32 states and 50 transitions. [2020-12-22 11:10:45,925 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-22 11:10:45,925 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 16 [2020-12-22 11:10:45,925 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 11:10:45,925 INFO L225 Difference]: With dead ends: 32 [2020-12-22 11:10:45,926 INFO L226 Difference]: Without dead ends: 0 [2020-12-22 11:10:45,926 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-12-22 11:10:45,926 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-12-22 11:10:45,926 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-12-22 11:10:45,927 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-12-22 11:10:45,927 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-12-22 11:10:45,927 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 16 [2020-12-22 11:10:45,927 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 11:10:45,927 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-12-22 11:10:45,928 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-22 11:10:45,928 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-12-22 11:10:45,928 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-12-22 11:10:45,928 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-12-22 11:10:45,933 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.12 11:10:45 BasicIcfg [2020-12-22 11:10:45,933 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-12-22 11:10:45,934 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-22 11:10:45,934 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-22 11:10:45,934 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-22 11:10:45,935 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 11:10:39" (3/4) ... [2020-12-22 11:10:45,941 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-12-22 11:10:45,952 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2020-12-22 11:10:45,952 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2020-12-22 11:10:45,952 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P2 [2020-12-22 11:10:45,960 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 14 nodes and edges [2020-12-22 11:10:45,961 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2020-12-22 11:10:45,961 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-12-22 11:10:45,961 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-12-22 11:10:46,037 INFO L141 WitnessManager]: Wrote witness to /storage/repos/svcomp/c/pthread-wmm/safe020_tso.oepc.i-witness.graphml [2020-12-22 11:10:46,037 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-22 11:10:46,039 INFO L168 Benchmark]: Toolchain (without parser) took 7877.86 ms. Allocated memory was 166.7 MB in the beginning and 255.9 MB in the end (delta: 89.1 MB). Free memory was 146.0 MB in the beginning and 114.5 MB in the end (delta: 31.5 MB). Peak memory consumption was 119.9 MB. Max. memory is 8.0 GB. [2020-12-22 11:10:46,039 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 166.7 MB. Free memory is still 138.1 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-12-22 11:10:46,045 INFO L168 Benchmark]: CACSL2BoogieTranslator took 747.43 ms. Allocated memory is still 166.7 MB. Free memory was 145.7 MB in the beginning and 130.0 MB in the end (delta: 15.7 MB). Peak memory consumption was 16.7 MB. Max. memory is 8.0 GB. [2020-12-22 11:10:46,048 INFO L168 Benchmark]: Boogie Procedure Inliner took 106.55 ms. Allocated memory is still 166.7 MB. Free memory was 130.0 MB in the beginning and 127.9 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2020-12-22 11:10:46,049 INFO L168 Benchmark]: Boogie Preprocessor took 70.11 ms. Allocated memory is still 166.7 MB. Free memory was 127.9 MB in the beginning and 126.8 MB in the end (delta: 1.1 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2020-12-22 11:10:46,049 INFO L168 Benchmark]: RCFGBuilder took 626.61 ms. Allocated memory is still 166.7 MB. Free memory was 126.5 MB in the beginning and 104.8 MB in the end (delta: 21.7 MB). Peak memory consumption was 22.0 MB. Max. memory is 8.0 GB. [2020-12-22 11:10:46,050 INFO L168 Benchmark]: TraceAbstraction took 6209.71 ms. Allocated memory was 166.7 MB in the beginning and 255.9 MB in the end (delta: 89.1 MB). Free memory was 104.5 MB in the beginning and 117.1 MB in the end (delta: -12.6 MB). Peak memory consumption was 78.0 MB. Max. memory is 8.0 GB. [2020-12-22 11:10:46,051 INFO L168 Benchmark]: Witness Printer took 103.51 ms. Allocated memory is still 255.9 MB. Free memory was 117.1 MB in the beginning and 114.5 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2020-12-22 11:10:46,060 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 166.7 MB. Free memory is still 138.1 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 747.43 ms. Allocated memory is still 166.7 MB. Free memory was 145.7 MB in the beginning and 130.0 MB in the end (delta: 15.7 MB). Peak memory consumption was 16.7 MB. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 106.55 ms. Allocated memory is still 166.7 MB. Free memory was 130.0 MB in the beginning and 127.9 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 70.11 ms. Allocated memory is still 166.7 MB. Free memory was 127.9 MB in the beginning and 126.8 MB in the end (delta: 1.1 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 626.61 ms. Allocated memory is still 166.7 MB. Free memory was 126.5 MB in the beginning and 104.8 MB in the end (delta: 21.7 MB). Peak memory consumption was 22.0 MB. Max. memory is 8.0 GB. * TraceAbstraction took 6209.71 ms. Allocated memory was 166.7 MB in the beginning and 255.9 MB in the end (delta: 89.1 MB). Free memory was 104.5 MB in the beginning and 117.1 MB in the end (delta: -12.6 MB). Peak memory consumption was 78.0 MB. Max. memory is 8.0 GB. * Witness Printer took 103.51 ms. Allocated memory is still 255.9 MB. Free memory was 117.1 MB in the beginning and 114.5 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 727 VarBasedMoverChecksPositive, 30 VarBasedMoverChecksNegative, 4 SemBasedMoverChecksPositive, 26 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.4s, 40 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 3.8s, 81 PlacesBefore, 30 PlacesAfterwards, 73 TransitionsBefore, 20 TransitionsAfterwards, 1212 CoEnabledTransitionPairs, 6 FixpointIterations, 17 TrivialSequentialCompositions, 41 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 6 ConcurrentYvCompositions, 2 ChoiceCompositions, 66 TotalNumberOfCompositions, 2226 MoverChecksTotal - PositiveResult [Line: 18]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 72 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 6.0s, OverallIterations: 10, TraceHistogramMax: 1, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 3.9s, HoareTripleCheckerStatistics: 166 SDtfs, 180 SDslu, 215 SDs, 0 SdLazy, 126 SolverSat, 35 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 30 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=226occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 10 MinimizatonAttempts, 92 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 115 NumberOfCodeBlocks, 115 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 105 ConstructedInterpolants, 0 QuantifiedInterpolants, 4619 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 10 InterpolantComputations, 10 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...