/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/thin001_pso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-4f750a8 [2020-12-22 11:14:38,267 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-22 11:14:38,270 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-22 11:14:38,331 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-22 11:14:38,331 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-22 11:14:38,335 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-22 11:14:38,339 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-22 11:14:38,348 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-22 11:14:38,352 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-22 11:14:38,360 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-22 11:14:38,361 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-22 11:14:38,364 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-22 11:14:38,364 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-22 11:14:38,367 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-22 11:14:38,369 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-22 11:14:38,372 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-22 11:14:38,373 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-22 11:14:38,376 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-22 11:14:38,383 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-22 11:14:38,388 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-22 11:14:38,390 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-22 11:14:38,393 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-22 11:14:38,395 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-22 11:14:38,396 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-22 11:14:38,399 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-22 11:14:38,399 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-22 11:14:38,399 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-22 11:14:38,401 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-22 11:14:38,401 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-22 11:14:38,402 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-22 11:14:38,403 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-22 11:14:38,404 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-22 11:14:38,405 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-22 11:14:38,406 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-22 11:14:38,407 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-22 11:14:38,421 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-22 11:14:38,422 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-22 11:14:38,423 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-22 11:14:38,423 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-22 11:14:38,426 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-22 11:14:38,427 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-22 11:14:38,428 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2020-12-22 11:14:38,479 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-22 11:14:38,479 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-22 11:14:38,484 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-22 11:14:38,484 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-22 11:14:38,484 INFO L138 SettingsManager]: * Use SBE=true [2020-12-22 11:14:38,485 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-22 11:14:38,485 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-22 11:14:38,485 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-22 11:14:38,485 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-22 11:14:38,486 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-22 11:14:38,487 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-22 11:14:38,487 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-22 11:14:38,487 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-22 11:14:38,488 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-22 11:14:38,488 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-22 11:14:38,488 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-22 11:14:38,488 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-22 11:14:38,488 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-22 11:14:38,489 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-22 11:14:38,489 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-22 11:14:38,489 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-22 11:14:38,489 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-12-22 11:14:38,490 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-22 11:14:38,490 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-22 11:14:38,490 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-22 11:14:38,490 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-12-22 11:14:38,961 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-22 11:14:38,996 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-22 11:14:38,999 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-22 11:14:39,001 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-22 11:14:39,002 INFO L275 PluginConnector]: CDTParser initialized [2020-12-22 11:14:39,003 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-wmm/thin001_pso.oepc.i [2020-12-22 11:14:39,090 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/738340633/79ff79e134cb4c0d9d2d904afb0b129d/FLAG6d8df83da [2020-12-22 11:14:39,930 INFO L306 CDTParser]: Found 1 translation units. [2020-12-22 11:14:39,931 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/thin001_pso.oepc.i [2020-12-22 11:14:39,955 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/738340633/79ff79e134cb4c0d9d2d904afb0b129d/FLAG6d8df83da [2020-12-22 11:14:40,125 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/738340633/79ff79e134cb4c0d9d2d904afb0b129d [2020-12-22 11:14:40,129 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-22 11:14:40,132 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-22 11:14:40,137 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-22 11:14:40,137 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-22 11:14:40,142 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-22 11:14:40,144 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 11:14:40" (1/1) ... [2020-12-22 11:14:40,145 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@484550c5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:14:40, skipping insertion in model container [2020-12-22 11:14:40,145 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 11:14:40" (1/1) ... [2020-12-22 11:14:40,155 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-22 11:14:40,197 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-22 11:14:40,411 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/thin001_pso.oepc.i[950,963] [2020-12-22 11:14:40,629 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-22 11:14:40,639 INFO L203 MainTranslator]: Completed pre-run [2020-12-22 11:14:40,654 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/thin001_pso.oepc.i[950,963] [2020-12-22 11:14:40,692 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-22 11:14:40,839 INFO L208 MainTranslator]: Completed translation [2020-12-22 11:14:40,840 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:14:40 WrapperNode [2020-12-22 11:14:40,840 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-22 11:14:40,841 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-22 11:14:40,842 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-22 11:14:40,842 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-22 11:14:40,852 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:14:40" (1/1) ... [2020-12-22 11:14:40,869 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:14:40" (1/1) ... [2020-12-22 11:14:40,893 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-22 11:14:40,894 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-22 11:14:40,894 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-22 11:14:40,895 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-22 11:14:40,904 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:14:40" (1/1) ... [2020-12-22 11:14:40,904 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:14:40" (1/1) ... [2020-12-22 11:14:40,908 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:14:40" (1/1) ... [2020-12-22 11:14:40,908 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:14:40" (1/1) ... [2020-12-22 11:14:40,916 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:14:40" (1/1) ... [2020-12-22 11:14:40,918 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:14:40" (1/1) ... [2020-12-22 11:14:40,921 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:14:40" (1/1) ... [2020-12-22 11:14:40,924 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-22 11:14:40,925 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-22 11:14:40,925 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-22 11:14:40,926 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-22 11:14:40,927 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:14:40" (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 11:14:41,040 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-12-22 11:14:41,041 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-12-22 11:14:41,041 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-22 11:14:41,041 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-12-22 11:14:41,041 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-12-22 11:14:41,041 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-12-22 11:14:41,042 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-12-22 11:14:41,042 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-12-22 11:14:41,042 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-12-22 11:14:41,042 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-12-22 11:14:41,042 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-22 11:14:41,042 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-12-22 11:14:41,043 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-22 11:14:41,043 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-22 11:14:41,045 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 11:14:41,726 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-22 11:14:41,726 INFO L299 CfgBuilder]: Removed 8 assume(true) statements. [2020-12-22 11:14:41,729 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 11:14:41 BoogieIcfgContainer [2020-12-22 11:14:41,730 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-22 11:14:41,731 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-22 11:14:41,732 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-22 11:14:41,735 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-22 11:14:41,736 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.12 11:14:40" (1/3) ... [2020-12-22 11:14:41,739 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5cf97b1a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 11:14:41, skipping insertion in model container [2020-12-22 11:14:41,739 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:14:40" (2/3) ... [2020-12-22 11:14:41,740 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5cf97b1a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 11:14:41, skipping insertion in model container [2020-12-22 11:14:41,740 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 11:14:41" (3/3) ... [2020-12-22 11:14:41,742 INFO L111 eAbstractionObserver]: Analyzing ICFG thin001_pso.oepc.i [2020-12-22 11:14:41,749 WARN L142 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-12-22 11:14:41,750 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-22 11:14:41,756 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-12-22 11:14:41,757 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-12-22 11:14:41,816 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:14:41,816 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:14:41,817 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:14:41,817 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:14:41,817 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:14:41,817 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:14:41,817 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:14:41,818 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:14:41,818 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:14:41,818 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:14:41,819 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:14:41,819 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:14:41,821 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:14:41,821 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:14:41,821 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:14:41,821 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:14:41,822 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:14:41,822 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:14:41,822 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:14:41,822 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:14:41,822 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:14:41,823 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:14:41,823 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:14:41,823 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:14:41,825 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:14:41,825 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:14:41,826 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:14:41,827 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:14:41,828 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:14:41,828 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:14:41,828 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:14:41,828 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:14:41,832 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:14:41,833 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:14:41,833 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:14:41,833 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:14:41,836 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:14:41,837 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:14:41,837 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:14:41,838 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:14:41,848 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:14:41,848 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:14:41,849 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:14:41,849 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:14:41,852 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:14:41,852 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:14:41,852 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:14:41,852 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:14:41,855 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2020-12-22 11:14:41,876 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-12-22 11:14:41,901 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-22 11:14:41,901 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-22 11:14:41,901 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-22 11:14:41,901 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-22 11:14:41,902 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-22 11:14:41,902 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-22 11:14:41,902 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-22 11:14:41,902 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-22 11:14:41,923 INFO L120 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2020-12-22 11:14:41,927 INFO L135 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 84 places, 76 transitions, 167 flow [2020-12-22 11:14:41,932 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 84 places, 76 transitions, 167 flow [2020-12-22 11:14:41,935 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 84 places, 76 transitions, 167 flow [2020-12-22 11:14:41,980 INFO L129 PetriNetUnfolder]: 2/73 cut-off events. [2020-12-22 11:14:41,980 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-12-22 11:14:41,985 INFO L84 FinitePrefix]: Finished finitePrefix Result has 83 conditions, 73 events. 2/73 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 54 event pairs, 0 based on Foata normal form. 0/70 useless extension candidates. Maximal degree in co-relation 56. Up to 2 conditions per place. [2020-12-22 11:14:41,988 INFO L116 LiptonReduction]: Number of co-enabled transitions 1296 [2020-12-22 11:14:44,908 WARN L197 SmtUtils]: Spent 219.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 78 [2020-12-22 11:14:45,038 WARN L197 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 74 [2020-12-22 11:14:45,293 WARN L197 SmtUtils]: Spent 253.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 78 [2020-12-22 11:14:45,407 WARN L197 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 74 [2020-12-22 11:14:45,725 INFO L131 LiptonReduction]: Checked pairs total: 2541 [2020-12-22 11:14:45,726 INFO L133 LiptonReduction]: Total number of compositions: 64 [2020-12-22 11:14:45,734 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 31 places, 21 transitions, 57 flow [2020-12-22 11:14:45,761 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 298 states. [2020-12-22 11:14:45,763 INFO L276 IsEmpty]: Start isEmpty. Operand 298 states. [2020-12-22 11:14:45,770 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-12-22 11:14:45,771 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 11:14:45,772 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 11:14:45,772 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 11:14:45,778 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 11:14:45,778 INFO L82 PathProgramCache]: Analyzing trace with hash 995547002, now seen corresponding path program 1 times [2020-12-22 11:14:45,789 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 11:14:45,789 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [758758631] [2020-12-22 11:14:45,790 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 11:14:45,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 11:14:46,119 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 11:14:46,120 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [758758631] [2020-12-22 11:14:46,121 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 11:14:46,122 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-12-22 11:14:46,123 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1330845822] [2020-12-22 11:14:46,129 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 11:14:46,130 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 11:14:46,150 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 11:14:46,151 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 11:14:46,154 INFO L87 Difference]: Start difference. First operand 298 states. Second operand 3 states. [2020-12-22 11:14:46,230 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 11:14:46,231 INFO L93 Difference]: Finished difference Result 360 states and 1001 transitions. [2020-12-22 11:14:46,231 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 11:14:46,233 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2020-12-22 11:14:46,234 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 11:14:46,255 INFO L225 Difference]: With dead ends: 360 [2020-12-22 11:14:46,255 INFO L226 Difference]: Without dead ends: 233 [2020-12-22 11:14:46,257 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 11:14:46,286 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 233 states. [2020-12-22 11:14:46,326 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 233 to 233. [2020-12-22 11:14:46,328 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 233 states. [2020-12-22 11:14:46,334 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 233 states to 233 states and 652 transitions. [2020-12-22 11:14:46,335 INFO L78 Accepts]: Start accepts. Automaton has 233 states and 652 transitions. Word has length 8 [2020-12-22 11:14:46,336 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 11:14:46,337 INFO L481 AbstractCegarLoop]: Abstraction has 233 states and 652 transitions. [2020-12-22 11:14:46,337 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 11:14:46,337 INFO L276 IsEmpty]: Start isEmpty. Operand 233 states and 652 transitions. [2020-12-22 11:14:46,338 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-12-22 11:14:46,339 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 11:14:46,339 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 11:14:46,339 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-22 11:14:46,339 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 11:14:46,340 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 11:14:46,340 INFO L82 PathProgramCache]: Analyzing trace with hash 755699245, now seen corresponding path program 1 times [2020-12-22 11:14:46,340 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 11:14:46,341 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [367256783] [2020-12-22 11:14:46,341 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 11:14:46,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 11:14:46,476 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 11:14:46,477 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [367256783] [2020-12-22 11:14:46,477 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 11:14:46,477 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-22 11:14:46,477 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [601357045] [2020-12-22 11:14:46,479 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-22 11:14:46,479 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 11:14:46,480 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-22 11:14:46,480 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-22 11:14:46,481 INFO L87 Difference]: Start difference. First operand 233 states and 652 transitions. Second operand 4 states. [2020-12-22 11:14:46,528 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 11:14:46,528 INFO L93 Difference]: Finished difference Result 383 states and 1016 transitions. [2020-12-22 11:14:46,528 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-22 11:14:46,529 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 9 [2020-12-22 11:14:46,529 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 11:14:46,533 INFO L225 Difference]: With dead ends: 383 [2020-12-22 11:14:46,533 INFO L226 Difference]: Without dead ends: 329 [2020-12-22 11:14:46,534 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 11:14:46,539 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 329 states. [2020-12-22 11:14:46,585 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 329 to 284. [2020-12-22 11:14:46,585 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 284 states. [2020-12-22 11:14:46,592 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 284 states to 284 states and 779 transitions. [2020-12-22 11:14:46,593 INFO L78 Accepts]: Start accepts. Automaton has 284 states and 779 transitions. Word has length 9 [2020-12-22 11:14:46,593 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 11:14:46,593 INFO L481 AbstractCegarLoop]: Abstraction has 284 states and 779 transitions. [2020-12-22 11:14:46,593 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-22 11:14:46,594 INFO L276 IsEmpty]: Start isEmpty. Operand 284 states and 779 transitions. [2020-12-22 11:14:46,598 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-12-22 11:14:46,598 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 11:14:46,599 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 11:14:46,599 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-12-22 11:14:46,600 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 11:14:46,600 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 11:14:46,600 INFO L82 PathProgramCache]: Analyzing trace with hash 797195438, now seen corresponding path program 1 times [2020-12-22 11:14:46,601 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 11:14:46,601 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [436567062] [2020-12-22 11:14:46,601 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 11:14:46,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 11:14:46,710 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 11:14:46,711 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [436567062] [2020-12-22 11:14:46,711 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 11:14:46,711 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-22 11:14:46,712 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1656997646] [2020-12-22 11:14:46,712 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-22 11:14:46,712 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 11:14:46,713 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-22 11:14:46,713 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-12-22 11:14:46,713 INFO L87 Difference]: Start difference. First operand 284 states and 779 transitions. Second operand 4 states. [2020-12-22 11:14:46,731 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 11:14:46,731 INFO L93 Difference]: Finished difference Result 269 states and 727 transitions. [2020-12-22 11:14:46,732 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 11:14:46,732 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 9 [2020-12-22 11:14:46,732 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 11:14:46,735 INFO L225 Difference]: With dead ends: 269 [2020-12-22 11:14:46,735 INFO L226 Difference]: Without dead ends: 269 [2020-12-22 11:14:46,735 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 11:14:46,738 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 269 states. [2020-12-22 11:14:46,752 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 269 to 269. [2020-12-22 11:14:46,753 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 269 states. [2020-12-22 11:14:46,755 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 269 states to 269 states and 727 transitions. [2020-12-22 11:14:46,755 INFO L78 Accepts]: Start accepts. Automaton has 269 states and 727 transitions. Word has length 9 [2020-12-22 11:14:46,755 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 11:14:46,756 INFO L481 AbstractCegarLoop]: Abstraction has 269 states and 727 transitions. [2020-12-22 11:14:46,756 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-22 11:14:46,756 INFO L276 IsEmpty]: Start isEmpty. Operand 269 states and 727 transitions. [2020-12-22 11:14:46,758 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-12-22 11:14:46,758 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 11:14:46,758 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 11:14:46,758 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-12-22 11:14:46,758 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 11:14:46,759 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 11:14:46,759 INFO L82 PathProgramCache]: Analyzing trace with hash 1951849563, now seen corresponding path program 1 times [2020-12-22 11:14:46,759 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 11:14:46,760 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2058421958] [2020-12-22 11:14:46,760 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 11:14:46,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 11:14:46,810 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 11:14:46,811 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2058421958] [2020-12-22 11:14:46,811 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 11:14:46,811 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-22 11:14:46,812 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1060523829] [2020-12-22 11:14:46,812 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-22 11:14:46,812 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 11:14:46,813 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-22 11:14:46,813 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-22 11:14:46,814 INFO L87 Difference]: Start difference. First operand 269 states and 727 transitions. Second operand 4 states. [2020-12-22 11:14:46,831 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 11:14:46,831 INFO L93 Difference]: Finished difference Result 290 states and 749 transitions. [2020-12-22 11:14:46,832 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-22 11:14:46,832 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 10 [2020-12-22 11:14:46,832 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 11:14:46,834 INFO L225 Difference]: With dead ends: 290 [2020-12-22 11:14:46,834 INFO L226 Difference]: Without dead ends: 176 [2020-12-22 11:14:46,834 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 11:14:46,835 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 176 states. [2020-12-22 11:14:46,841 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 176 to 140. [2020-12-22 11:14:46,841 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 140 states. [2020-12-22 11:14:46,842 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 140 states to 140 states and 339 transitions. [2020-12-22 11:14:46,843 INFO L78 Accepts]: Start accepts. Automaton has 140 states and 339 transitions. Word has length 10 [2020-12-22 11:14:46,843 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 11:14:46,843 INFO L481 AbstractCegarLoop]: Abstraction has 140 states and 339 transitions. [2020-12-22 11:14:46,843 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-22 11:14:46,843 INFO L276 IsEmpty]: Start isEmpty. Operand 140 states and 339 transitions. [2020-12-22 11:14:46,844 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-12-22 11:14:46,845 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 11:14:46,845 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 11:14:46,845 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-12-22 11:14:46,845 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 11:14:46,846 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 11:14:46,846 INFO L82 PathProgramCache]: Analyzing trace with hash -1183830127, now seen corresponding path program 1 times [2020-12-22 11:14:46,846 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 11:14:46,846 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1949896917] [2020-12-22 11:14:46,847 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 11:14:46,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 11:14:46,951 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 11:14:46,952 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1949896917] [2020-12-22 11:14:46,952 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 11:14:46,952 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 11:14:46,953 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1207677813] [2020-12-22 11:14:46,953 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-22 11:14:46,953 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 11:14:46,954 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-22 11:14:46,954 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-12-22 11:14:46,955 INFO L87 Difference]: Start difference. First operand 140 states and 339 transitions. Second operand 5 states. [2020-12-22 11:14:46,972 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 11:14:46,973 INFO L93 Difference]: Finished difference Result 158 states and 372 transitions. [2020-12-22 11:14:46,973 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-22 11:14:46,973 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 12 [2020-12-22 11:14:46,973 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 11:14:46,974 INFO L225 Difference]: With dead ends: 158 [2020-12-22 11:14:46,974 INFO L226 Difference]: Without dead ends: 68 [2020-12-22 11:14:46,975 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 11:14:46,975 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states. [2020-12-22 11:14:46,978 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 68. [2020-12-22 11:14:46,978 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 68 states. [2020-12-22 11:14:46,978 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 144 transitions. [2020-12-22 11:14:46,979 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 144 transitions. Word has length 12 [2020-12-22 11:14:46,979 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 11:14:46,979 INFO L481 AbstractCegarLoop]: Abstraction has 68 states and 144 transitions. [2020-12-22 11:14:46,979 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-22 11:14:46,979 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 144 transitions. [2020-12-22 11:14:46,980 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-12-22 11:14:46,980 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 11:14:46,980 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 11:14:46,980 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-12-22 11:14:46,981 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 11:14:46,981 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 11:14:46,981 INFO L82 PathProgramCache]: Analyzing trace with hash -936336033, now seen corresponding path program 1 times [2020-12-22 11:14:46,982 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 11:14:46,982 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1061946484] [2020-12-22 11:14:46,982 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 11:14:47,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 11:14:47,039 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 11:14:47,040 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1061946484] [2020-12-22 11:14:47,040 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 11:14:47,040 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 11:14:47,041 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [373182844] [2020-12-22 11:14:47,041 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-22 11:14:47,041 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 11:14:47,042 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-22 11:14:47,042 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-12-22 11:14:47,043 INFO L87 Difference]: Start difference. First operand 68 states and 144 transitions. Second operand 5 states. [2020-12-22 11:14:47,054 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 11:14:47,054 INFO L93 Difference]: Finished difference Result 56 states and 112 transitions. [2020-12-22 11:14:47,055 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-22 11:14:47,055 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 13 [2020-12-22 11:14:47,055 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 11:14:47,056 INFO L225 Difference]: With dead ends: 56 [2020-12-22 11:14:47,056 INFO L226 Difference]: Without dead ends: 0 [2020-12-22 11:14:47,056 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 11:14:47,056 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-12-22 11:14:47,057 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-12-22 11:14:47,057 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-12-22 11:14:47,057 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-12-22 11:14:47,057 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 13 [2020-12-22 11:14:47,057 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 11:14:47,057 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-12-22 11:14:47,058 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-22 11:14:47,058 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-12-22 11:14:47,058 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-12-22 11:14:47,058 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-12-22 11:14:47,062 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.12 11:14:47 BasicIcfg [2020-12-22 11:14:47,062 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-12-22 11:14:47,063 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-22 11:14:47,063 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-22 11:14:47,064 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-22 11:14:47,064 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 11:14:41" (3/4) ... [2020-12-22 11:14:47,068 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-12-22 11:14:47,077 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2020-12-22 11:14:47,077 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2020-12-22 11:14:47,077 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P2 [2020-12-22 11:14:47,083 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 14 nodes and edges [2020-12-22 11:14:47,083 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2020-12-22 11:14:47,083 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-12-22 11:14:47,083 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-12-22 11:14:47,137 INFO L141 WitnessManager]: Wrote witness to /storage/repos/svcomp/c/pthread-wmm/thin001_pso.oepc.i-witness.graphml [2020-12-22 11:14:47,138 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-22 11:14:47,139 INFO L168 Benchmark]: Toolchain (without parser) took 7007.07 ms. Allocated memory was 166.7 MB in the beginning and 216.0 MB in the end (delta: 49.3 MB). Free memory was 140.6 MB in the beginning and 132.7 MB in the end (delta: 7.9 MB). Peak memory consumption was 57.6 MB. Max. memory is 8.0 GB. [2020-12-22 11:14:47,140 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 166.7 MB. Free memory was 141.2 MB in the beginning and 141.1 MB in the end (delta: 84.5 kB). There was no memory consumed. Max. memory is 8.0 GB. [2020-12-22 11:14:47,140 INFO L168 Benchmark]: CACSL2BoogieTranslator took 703.77 ms. Allocated memory is still 166.7 MB. Free memory was 140.5 MB in the beginning and 145.0 MB in the end (delta: -4.5 MB). Peak memory consumption was 30.1 MB. Max. memory is 8.0 GB. [2020-12-22 11:14:47,141 INFO L168 Benchmark]: Boogie Procedure Inliner took 52.10 ms. Allocated memory is still 166.7 MB. Free memory was 145.0 MB in the beginning and 142.9 MB in the end (delta: 2.1 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2020-12-22 11:14:47,142 INFO L168 Benchmark]: Boogie Preprocessor took 30.22 ms. Allocated memory is still 166.7 MB. Free memory was 142.9 MB in the beginning and 141.4 MB in the end (delta: 1.6 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2020-12-22 11:14:47,143 INFO L168 Benchmark]: RCFGBuilder took 804.58 ms. Allocated memory is still 166.7 MB. Free memory was 141.4 MB in the beginning and 119.3 MB in the end (delta: 22.0 MB). Peak memory consumption was 22.0 MB. Max. memory is 8.0 GB. [2020-12-22 11:14:47,145 INFO L168 Benchmark]: TraceAbstraction took 5331.13 ms. Allocated memory was 166.7 MB in the beginning and 216.0 MB in the end (delta: 49.3 MB). Free memory was 118.8 MB in the beginning and 135.9 MB in the end (delta: -17.0 MB). Peak memory consumption was 32.8 MB. Max. memory is 8.0 GB. [2020-12-22 11:14:47,147 INFO L168 Benchmark]: Witness Printer took 74.64 ms. Allocated memory is still 216.0 MB. Free memory was 135.3 MB in the beginning and 132.7 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2020-12-22 11:14:47,154 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 166.7 MB. Free memory was 141.2 MB in the beginning and 141.1 MB in the end (delta: 84.5 kB). There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 703.77 ms. Allocated memory is still 166.7 MB. Free memory was 140.5 MB in the beginning and 145.0 MB in the end (delta: -4.5 MB). Peak memory consumption was 30.1 MB. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 52.10 ms. Allocated memory is still 166.7 MB. Free memory was 145.0 MB in the beginning and 142.9 MB in the end (delta: 2.1 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 30.22 ms. Allocated memory is still 166.7 MB. Free memory was 142.9 MB in the beginning and 141.4 MB in the end (delta: 1.6 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 804.58 ms. Allocated memory is still 166.7 MB. Free memory was 141.4 MB in the beginning and 119.3 MB in the end (delta: 22.0 MB). Peak memory consumption was 22.0 MB. Max. memory is 8.0 GB. * TraceAbstraction took 5331.13 ms. Allocated memory was 166.7 MB in the beginning and 216.0 MB in the end (delta: 49.3 MB). Free memory was 118.8 MB in the beginning and 135.9 MB in the end (delta: -17.0 MB). Peak memory consumption was 32.8 MB. Max. memory is 8.0 GB. * Witness Printer took 74.64 ms. Allocated memory is still 216.0 MB. Free memory was 135.3 MB in the beginning and 132.7 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 856 VarBasedMoverChecksPositive, 38 VarBasedMoverChecksNegative, 9 SemBasedMoverChecksPositive, 29 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.4s, 64 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 3.7s, 84 PlacesBefore, 31 PlacesAfterwards, 76 TransitionsBefore, 21 TransitionsAfterwards, 1296 CoEnabledTransitionPairs, 6 FixpointIterations, 19 TrivialSequentialCompositions, 37 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 6 ConcurrentYvCompositions, 2 ChoiceCompositions, 64 TotalNumberOfCompositions, 2541 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, 75 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 5.1s, OverallIterations: 6, TraceHistogramMax: 1, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 3.8s, HoareTripleCheckerStatistics: 107 SDtfs, 128 SDslu, 96 SDs, 0 SdLazy, 33 SolverSat, 12 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 17 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=298occurred 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, 6 MinimizatonAttempts, 81 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 61 NumberOfCodeBlocks, 61 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 55 ConstructedInterpolants, 0 QuantifiedInterpolants, 2929 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...