/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/safe003_tso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-4f750a8 [2020-12-22 11:05:51,000 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-22 11:05:51,003 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-22 11:05:51,040 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-22 11:05:51,041 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-22 11:05:51,043 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-22 11:05:51,045 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-22 11:05:51,048 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-22 11:05:51,050 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-22 11:05:51,051 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-22 11:05:51,053 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-22 11:05:51,054 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-22 11:05:51,055 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-22 11:05:51,056 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-22 11:05:51,058 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-22 11:05:51,060 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-22 11:05:51,061 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-22 11:05:51,063 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-22 11:05:51,065 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-22 11:05:51,089 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-22 11:05:51,094 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-22 11:05:51,099 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-22 11:05:51,118 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-22 11:05:51,119 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-22 11:05:51,127 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-22 11:05:51,127 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-22 11:05:51,127 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-22 11:05:51,134 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-22 11:05:51,135 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-22 11:05:51,138 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-22 11:05:51,138 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-22 11:05:51,140 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-22 11:05:51,141 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-22 11:05:51,142 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-22 11:05:51,144 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-22 11:05:51,145 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-22 11:05:51,146 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-22 11:05:51,147 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-22 11:05:51,147 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-22 11:05:51,148 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-22 11:05:51,149 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-22 11:05:51,150 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2020-12-22 11:05:51,209 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-22 11:05:51,210 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-22 11:05:51,215 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-22 11:05:51,215 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-22 11:05:51,216 INFO L138 SettingsManager]: * Use SBE=true [2020-12-22 11:05:51,216 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-22 11:05:51,216 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-22 11:05:51,216 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-22 11:05:51,217 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-22 11:05:51,217 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-22 11:05:51,218 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-22 11:05:51,218 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-22 11:05:51,218 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-22 11:05:51,219 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-22 11:05:51,219 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-22 11:05:51,219 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-22 11:05:51,219 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-22 11:05:51,219 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-22 11:05:51,220 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-22 11:05:51,220 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-22 11:05:51,220 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-22 11:05:51,220 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-12-22 11:05:51,220 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-22 11:05:51,221 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-22 11:05:51,221 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-22 11:05:51,221 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-12-22 11:05:51,647 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-22 11:05:51,697 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-22 11:05:51,700 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-22 11:05:51,702 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-22 11:05:51,702 INFO L275 PluginConnector]: CDTParser initialized [2020-12-22 11:05:51,704 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-wmm/safe003_tso.oepc.i [2020-12-22 11:05:51,801 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cb561eeff/e341e188ef16471a96b7a8d6df2e4078/FLAG43d1642cc [2020-12-22 11:05:52,646 INFO L306 CDTParser]: Found 1 translation units. [2020-12-22 11:05:52,647 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/safe003_tso.oepc.i [2020-12-22 11:05:52,667 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cb561eeff/e341e188ef16471a96b7a8d6df2e4078/FLAG43d1642cc [2020-12-22 11:05:52,834 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cb561eeff/e341e188ef16471a96b7a8d6df2e4078 [2020-12-22 11:05:52,837 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-22 11:05:52,840 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-22 11:05:52,842 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-22 11:05:52,842 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-22 11:05:52,847 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-22 11:05:52,848 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 11:05:52" (1/1) ... [2020-12-22 11:05:52,851 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@75e287ce and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:05:52, skipping insertion in model container [2020-12-22 11:05:52,851 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 11:05:52" (1/1) ... [2020-12-22 11:05:52,862 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-22 11:05:52,925 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-22 11:05:53,135 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/safe003_tso.oepc.i[950,963] [2020-12-22 11:05:53,452 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-22 11:05:53,464 INFO L203 MainTranslator]: Completed pre-run [2020-12-22 11:05:53,483 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/safe003_tso.oepc.i[950,963] [2020-12-22 11:05:53,574 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-22 11:05:53,678 INFO L208 MainTranslator]: Completed translation [2020-12-22 11:05:53,679 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:05:53 WrapperNode [2020-12-22 11:05:53,679 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-22 11:05:53,682 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-22 11:05:53,682 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-22 11:05:53,682 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-22 11:05:53,690 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:05:53" (1/1) ... [2020-12-22 11:05:53,727 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:05:53" (1/1) ... [2020-12-22 11:05:53,754 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-22 11:05:53,755 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-22 11:05:53,755 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-22 11:05:53,755 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-22 11:05:53,764 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:05:53" (1/1) ... [2020-12-22 11:05:53,764 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:05:53" (1/1) ... [2020-12-22 11:05:53,767 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:05:53" (1/1) ... [2020-12-22 11:05:53,768 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:05:53" (1/1) ... [2020-12-22 11:05:53,775 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:05:53" (1/1) ... [2020-12-22 11:05:53,777 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:05:53" (1/1) ... [2020-12-22 11:05:53,780 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:05:53" (1/1) ... [2020-12-22 11:05:53,783 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-22 11:05:53,784 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-22 11:05:53,784 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-22 11:05:53,785 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-22 11:05:53,786 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:05:53" (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 11:05:53,904 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-12-22 11:05:53,905 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-12-22 11:05:53,905 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-22 11:05:53,905 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-12-22 11:05:53,905 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-12-22 11:05:53,906 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-12-22 11:05:53,906 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-12-22 11:05:53,907 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-12-22 11:05:53,907 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-12-22 11:05:53,908 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-12-22 11:05:53,908 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-22 11:05:53,911 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-12-22 11:05:53,911 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-22 11:05:53,911 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-22 11:05:53,913 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 11:05:54,548 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-22 11:05:54,549 INFO L299 CfgBuilder]: Removed 8 assume(true) statements. [2020-12-22 11:05:54,552 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 11:05:54 BoogieIcfgContainer [2020-12-22 11:05:54,553 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-22 11:05:54,555 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-22 11:05:54,555 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-22 11:05:54,560 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-22 11:05:54,560 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.12 11:05:52" (1/3) ... [2020-12-22 11:05:54,563 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@711b8426 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 11:05:54, skipping insertion in model container [2020-12-22 11:05:54,563 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:05:53" (2/3) ... [2020-12-22 11:05:54,564 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@711b8426 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 11:05:54, skipping insertion in model container [2020-12-22 11:05:54,564 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 11:05:54" (3/3) ... [2020-12-22 11:05:54,566 INFO L111 eAbstractionObserver]: Analyzing ICFG safe003_tso.oepc.i [2020-12-22 11:05:54,575 WARN L142 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-12-22 11:05:54,576 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-22 11:05:54,583 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-12-22 11:05:54,584 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-12-22 11:05:54,647 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:05:54,647 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:05:54,647 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:05:54,648 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:05:54,648 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:05:54,648 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:05:54,648 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:05:54,649 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:05:54,649 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:05:54,649 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:05:54,650 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:05:54,650 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:05:54,652 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:05:54,652 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:05:54,652 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:05:54,652 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:05:54,653 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:05:54,653 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:05:54,653 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:05:54,653 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:05:54,654 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:05:54,654 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:05:54,654 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:05:54,654 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:05:54,657 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:05:54,657 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:05:54,658 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:05:54,658 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:05:54,660 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:05:54,661 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:05:54,661 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:05:54,661 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:05:54,662 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:05:54,662 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:05:54,662 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:05:54,662 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:05:54,666 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:05:54,668 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:05:54,668 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:05:54,668 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:05:54,679 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:05:54,680 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:05:54,680 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:05:54,680 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:05:54,690 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:05:54,691 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:05:54,691 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:05:54,691 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:05:54,697 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2020-12-22 11:05:54,723 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-12-22 11:05:54,766 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-22 11:05:54,766 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-22 11:05:54,767 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-22 11:05:54,767 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-22 11:05:54,767 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-22 11:05:54,767 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-22 11:05:54,767 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-22 11:05:54,767 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-22 11:05:54,789 INFO L120 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2020-12-22 11:05:54,791 INFO L135 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 83 places, 75 transitions, 165 flow [2020-12-22 11:05:54,796 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 83 places, 75 transitions, 165 flow [2020-12-22 11:05:54,799 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 83 places, 75 transitions, 165 flow [2020-12-22 11:05:54,911 INFO L129 PetriNetUnfolder]: 2/72 cut-off events. [2020-12-22 11:05:54,912 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-12-22 11:05:54,929 INFO L84 FinitePrefix]: Finished finitePrefix Result has 82 conditions, 72 events. 2/72 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 49 event pairs, 0 based on Foata normal form. 0/69 useless extension candidates. Maximal degree in co-relation 56. Up to 2 conditions per place. [2020-12-22 11:05:54,935 INFO L116 LiptonReduction]: Number of co-enabled transitions 1296 [2020-12-22 11:05:58,264 WARN L197 SmtUtils]: Spent 232.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 76 [2020-12-22 11:05:58,368 WARN L197 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 72 [2020-12-22 11:05:58,628 WARN L197 SmtUtils]: Spent 258.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 76 [2020-12-22 11:05:58,731 INFO L131 LiptonReduction]: Checked pairs total: 2653 [2020-12-22 11:05:58,732 INFO L133 LiptonReduction]: Total number of compositions: 59 [2020-12-22 11:05:58,740 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 32 places, 23 transitions, 61 flow [2020-12-22 11:05:58,773 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 362 states. [2020-12-22 11:05:58,775 INFO L276 IsEmpty]: Start isEmpty. Operand 362 states. [2020-12-22 11:05:58,784 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-12-22 11:05:58,784 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 11:05:58,785 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 11:05:58,786 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 11:05:58,793 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 11:05:58,793 INFO L82 PathProgramCache]: Analyzing trace with hash -991402129, now seen corresponding path program 1 times [2020-12-22 11:05:58,804 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 11:05:58,805 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1015582993] [2020-12-22 11:05:58,805 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 11:05:58,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 11:05:59,042 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 11:05:59,043 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1015582993] [2020-12-22 11:05:59,045 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 11:05:59,045 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-22 11:05:59,046 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2063500669] [2020-12-22 11:05:59,053 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-12-22 11:05:59,054 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 11:05:59,085 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-12-22 11:05:59,086 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-12-22 11:05:59,088 INFO L87 Difference]: Start difference. First operand 362 states. Second operand 2 states. [2020-12-22 11:05:59,148 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 11:05:59,151 INFO L93 Difference]: Finished difference Result 362 states and 1072 transitions. [2020-12-22 11:05:59,151 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-12-22 11:05:59,153 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 8 [2020-12-22 11:05:59,154 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 11:05:59,186 INFO L225 Difference]: With dead ends: 362 [2020-12-22 11:05:59,186 INFO L226 Difference]: Without dead ends: 298 [2020-12-22 11:05:59,188 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-12-22 11:05:59,228 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 298 states. [2020-12-22 11:05:59,284 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 298 to 298. [2020-12-22 11:05:59,285 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 298 states. [2020-12-22 11:05:59,289 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 298 states to 298 states and 864 transitions. [2020-12-22 11:05:59,291 INFO L78 Accepts]: Start accepts. Automaton has 298 states and 864 transitions. Word has length 8 [2020-12-22 11:05:59,292 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 11:05:59,292 INFO L481 AbstractCegarLoop]: Abstraction has 298 states and 864 transitions. [2020-12-22 11:05:59,292 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-12-22 11:05:59,293 INFO L276 IsEmpty]: Start isEmpty. Operand 298 states and 864 transitions. [2020-12-22 11:05:59,294 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-12-22 11:05:59,295 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 11:05:59,295 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 11:05:59,295 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-22 11:05:59,295 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 11:05:59,296 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 11:05:59,296 INFO L82 PathProgramCache]: Analyzing trace with hash -668714259, now seen corresponding path program 1 times [2020-12-22 11:05:59,297 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 11:05:59,297 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1414063849] [2020-12-22 11:05:59,297 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 11:05:59,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 11:05:59,544 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 11:05:59,545 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1414063849] [2020-12-22 11:05:59,545 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 11:05:59,545 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-22 11:05:59,545 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1531428201] [2020-12-22 11:05:59,549 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-22 11:05:59,550 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 11:05:59,550 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-22 11:05:59,551 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-22 11:05:59,551 INFO L87 Difference]: Start difference. First operand 298 states and 864 transitions. Second operand 4 states. [2020-12-22 11:05:59,634 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 11:05:59,634 INFO L93 Difference]: Finished difference Result 591 states and 1623 transitions. [2020-12-22 11:05:59,634 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-22 11:05:59,635 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 9 [2020-12-22 11:05:59,635 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 11:05:59,641 INFO L225 Difference]: With dead ends: 591 [2020-12-22 11:05:59,642 INFO L226 Difference]: Without dead ends: 404 [2020-12-22 11:05:59,643 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 11:05:59,648 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 404 states. [2020-12-22 11:05:59,695 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 404 to 314. [2020-12-22 11:05:59,695 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 314 states. [2020-12-22 11:05:59,697 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 314 states to 314 states and 830 transitions. [2020-12-22 11:05:59,698 INFO L78 Accepts]: Start accepts. Automaton has 314 states and 830 transitions. Word has length 9 [2020-12-22 11:05:59,698 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 11:05:59,698 INFO L481 AbstractCegarLoop]: Abstraction has 314 states and 830 transitions. [2020-12-22 11:05:59,698 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-22 11:05:59,698 INFO L276 IsEmpty]: Start isEmpty. Operand 314 states and 830 transitions. [2020-12-22 11:05:59,700 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-12-22 11:05:59,700 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 11:05:59,700 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 11:05:59,701 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-12-22 11:05:59,701 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 11:05:59,701 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 11:05:59,701 INFO L82 PathProgramCache]: Analyzing trace with hash 39953638, now seen corresponding path program 1 times [2020-12-22 11:05:59,702 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 11:05:59,702 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1928357969] [2020-12-22 11:05:59,702 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 11:05:59,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 11:05:59,832 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 11:05:59,833 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1928357969] [2020-12-22 11:05:59,833 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 11:05:59,834 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-22 11:05:59,834 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [75611572] [2020-12-22 11:05:59,834 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-22 11:05:59,834 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 11:05:59,835 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-22 11:05:59,836 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-22 11:05:59,836 INFO L87 Difference]: Start difference. First operand 314 states and 830 transitions. Second operand 4 states. [2020-12-22 11:05:59,862 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 11:05:59,862 INFO L93 Difference]: Finished difference Result 314 states and 785 transitions. [2020-12-22 11:05:59,863 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-22 11:05:59,863 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 10 [2020-12-22 11:05:59,863 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 11:05:59,865 INFO L225 Difference]: With dead ends: 314 [2020-12-22 11:05:59,866 INFO L226 Difference]: Without dead ends: 200 [2020-12-22 11:05:59,866 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 11:05:59,868 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 200 states. [2020-12-22 11:05:59,873 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 200 to 192. [2020-12-22 11:05:59,873 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 192 states. [2020-12-22 11:05:59,874 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 192 states to 192 states and 474 transitions. [2020-12-22 11:05:59,875 INFO L78 Accepts]: Start accepts. Automaton has 192 states and 474 transitions. Word has length 10 [2020-12-22 11:05:59,875 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 11:05:59,875 INFO L481 AbstractCegarLoop]: Abstraction has 192 states and 474 transitions. [2020-12-22 11:05:59,875 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-22 11:05:59,875 INFO L276 IsEmpty]: Start isEmpty. Operand 192 states and 474 transitions. [2020-12-22 11:05:59,877 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-12-22 11:05:59,877 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 11:05:59,877 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 11:05:59,878 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-12-22 11:05:59,878 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 11:05:59,878 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 11:05:59,879 INFO L82 PathProgramCache]: Analyzing trace with hash -1622661680, now seen corresponding path program 1 times [2020-12-22 11:05:59,879 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 11:05:59,879 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [338568423] [2020-12-22 11:05:59,879 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 11:05:59,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 11:05:59,958 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 11:05:59,959 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [338568423] [2020-12-22 11:05:59,959 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 11:05:59,960 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 11:05:59,960 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [908551864] [2020-12-22 11:05:59,960 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-22 11:05:59,961 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 11:05:59,961 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-22 11:05:59,962 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-22 11:05:59,962 INFO L87 Difference]: Start difference. First operand 192 states and 474 transitions. Second operand 5 states. [2020-12-22 11:06:00,025 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 11:06:00,026 INFO L93 Difference]: Finished difference Result 242 states and 579 transitions. [2020-12-22 11:06:00,026 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-12-22 11:06:00,026 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 12 [2020-12-22 11:06:00,027 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 11:06:00,028 INFO L225 Difference]: With dead ends: 242 [2020-12-22 11:06:00,028 INFO L226 Difference]: Without dead ends: 144 [2020-12-22 11:06:00,029 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-12-22 11:06:00,030 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 144 states. [2020-12-22 11:06:00,033 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 144 to 144. [2020-12-22 11:06:00,033 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 144 states. [2020-12-22 11:06:00,034 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 144 states to 144 states and 330 transitions. [2020-12-22 11:06:00,034 INFO L78 Accepts]: Start accepts. Automaton has 144 states and 330 transitions. Word has length 12 [2020-12-22 11:06:00,035 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 11:06:00,035 INFO L481 AbstractCegarLoop]: Abstraction has 144 states and 330 transitions. [2020-12-22 11:06:00,035 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-22 11:06:00,035 INFO L276 IsEmpty]: Start isEmpty. Operand 144 states and 330 transitions. [2020-12-22 11:06:00,036 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-12-22 11:06:00,036 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 11:06:00,037 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 11:06:00,037 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-12-22 11:06:00,037 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 11:06:00,038 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 11:06:00,038 INFO L82 PathProgramCache]: Analyzing trace with hash 538399929, now seen corresponding path program 1 times [2020-12-22 11:06:00,038 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 11:06:00,038 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1472831048] [2020-12-22 11:06:00,039 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 11:06:00,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 11:06:00,171 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 11:06:00,172 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1472831048] [2020-12-22 11:06:00,172 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 11:06:00,173 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-22 11:06:00,173 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [246846606] [2020-12-22 11:06:00,174 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-22 11:06:00,175 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 11:06:00,175 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-22 11:06:00,177 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-12-22 11:06:00,177 INFO L87 Difference]: Start difference. First operand 144 states and 330 transitions. Second operand 6 states. [2020-12-22 11:06:00,290 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 11:06:00,290 INFO L93 Difference]: Finished difference Result 158 states and 347 transitions. [2020-12-22 11:06:00,290 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-12-22 11:06:00,291 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 13 [2020-12-22 11:06:00,291 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 11:06:00,292 INFO L225 Difference]: With dead ends: 158 [2020-12-22 11:06:00,292 INFO L226 Difference]: Without dead ends: 86 [2020-12-22 11:06:00,293 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2020-12-22 11:06:00,293 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86 states. [2020-12-22 11:06:00,296 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86 to 84. [2020-12-22 11:06:00,296 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 84 states. [2020-12-22 11:06:00,297 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 84 states and 186 transitions. [2020-12-22 11:06:00,297 INFO L78 Accepts]: Start accepts. Automaton has 84 states and 186 transitions. Word has length 13 [2020-12-22 11:06:00,297 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 11:06:00,297 INFO L481 AbstractCegarLoop]: Abstraction has 84 states and 186 transitions. [2020-12-22 11:06:00,297 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-12-22 11:06:00,297 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 186 transitions. [2020-12-22 11:06:00,298 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-12-22 11:06:00,298 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 11:06:00,299 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 11:06:00,299 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-12-22 11:06:00,299 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 11:06:00,300 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 11:06:00,300 INFO L82 PathProgramCache]: Analyzing trace with hash -2064800307, now seen corresponding path program 1 times [2020-12-22 11:06:00,300 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 11:06:00,300 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1828045662] [2020-12-22 11:06:00,300 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 11:06:00,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 11:06:00,396 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 11:06:00,397 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1828045662] [2020-12-22 11:06:00,397 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 11:06:00,397 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-22 11:06:00,397 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1874848656] [2020-12-22 11:06:00,398 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-22 11:06:00,398 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 11:06:00,399 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-22 11:06:00,399 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-12-22 11:06:00,400 INFO L87 Difference]: Start difference. First operand 84 states and 186 transitions. Second operand 6 states. [2020-12-22 11:06:00,447 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 11:06:00,448 INFO L93 Difference]: Finished difference Result 72 states and 154 transitions. [2020-12-22 11:06:00,448 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-12-22 11:06:00,449 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 14 [2020-12-22 11:06:00,449 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 11:06:00,449 INFO L225 Difference]: With dead ends: 72 [2020-12-22 11:06:00,449 INFO L226 Difference]: Without dead ends: 0 [2020-12-22 11:06:00,450 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2020-12-22 11:06:00,450 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-12-22 11:06:00,450 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-12-22 11:06:00,451 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-12-22 11:06:00,451 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-12-22 11:06:00,451 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 14 [2020-12-22 11:06:00,451 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 11:06:00,451 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-12-22 11:06:00,452 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-12-22 11:06:00,452 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-12-22 11:06:00,452 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-12-22 11:06:00,452 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-12-22 11:06:00,457 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.12 11:06:00 BasicIcfg [2020-12-22 11:06:00,457 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-12-22 11:06:00,458 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-22 11:06:00,459 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-22 11:06:00,459 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-22 11:06:00,460 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 11:05:54" (3/4) ... [2020-12-22 11:06:00,465 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-12-22 11:06:00,473 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2020-12-22 11:06:00,473 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2020-12-22 11:06:00,473 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P2 [2020-12-22 11:06:00,482 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 14 nodes and edges [2020-12-22 11:06:00,482 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2020-12-22 11:06:00,482 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-12-22 11:06:00,483 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-12-22 11:06:00,575 INFO L141 WitnessManager]: Wrote witness to /storage/repos/svcomp/c/pthread-wmm/safe003_tso.oepc.i-witness.graphml [2020-12-22 11:06:00,575 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-22 11:06:00,577 INFO L168 Benchmark]: Toolchain (without parser) took 7737.11 ms. Allocated memory was 166.7 MB in the beginning and 200.3 MB in the end (delta: 33.6 MB). Free memory was 120.8 MB in the beginning and 180.5 MB in the end (delta: -59.7 MB). Peak memory consumption was 90.8 MB. Max. memory is 8.0 GB. [2020-12-22 11:06:00,578 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 166.7 MB. Free memory is still 139.1 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-12-22 11:06:00,579 INFO L168 Benchmark]: CACSL2BoogieTranslator took 838.64 ms. Allocated memory is still 166.7 MB. Free memory was 120.5 MB in the beginning and 129.7 MB in the end (delta: -9.1 MB). Peak memory consumption was 17.8 MB. Max. memory is 8.0 GB. [2020-12-22 11:06:00,581 INFO L168 Benchmark]: Boogie Procedure Inliner took 72.35 ms. Allocated memory is still 166.7 MB. Free memory was 129.7 MB in the beginning and 127.7 MB in the end (delta: 2.0 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. [2020-12-22 11:06:00,582 INFO L168 Benchmark]: Boogie Preprocessor took 28.72 ms. Allocated memory is still 166.7 MB. Free memory was 127.7 MB in the beginning and 126.6 MB in the end (delta: 1.0 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2020-12-22 11:06:00,584 INFO L168 Benchmark]: RCFGBuilder took 768.87 ms. Allocated memory is still 166.7 MB. Free memory was 126.6 MB in the beginning and 104.0 MB in the end (delta: 22.6 MB). Peak memory consumption was 22.0 MB. Max. memory is 8.0 GB. [2020-12-22 11:06:00,584 INFO L168 Benchmark]: TraceAbstraction took 5901.85 ms. Allocated memory was 166.7 MB in the beginning and 200.3 MB in the end (delta: 33.6 MB). Free memory was 103.6 MB in the beginning and 67.9 MB in the end (delta: 35.6 MB). Peak memory consumption was 69.6 MB. Max. memory is 8.0 GB. [2020-12-22 11:06:00,588 INFO L168 Benchmark]: Witness Printer took 116.89 ms. Allocated memory is still 200.3 MB. Free memory was 67.9 MB in the beginning and 180.5 MB in the end (delta: -112.6 MB). Peak memory consumption was 3.3 MB. Max. memory is 8.0 GB. [2020-12-22 11:06:00,595 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 166.7 MB. Free memory is still 139.1 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 838.64 ms. Allocated memory is still 166.7 MB. Free memory was 120.5 MB in the beginning and 129.7 MB in the end (delta: -9.1 MB). Peak memory consumption was 17.8 MB. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 72.35 ms. Allocated memory is still 166.7 MB. Free memory was 129.7 MB in the beginning and 127.7 MB in the end (delta: 2.0 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 28.72 ms. Allocated memory is still 166.7 MB. Free memory was 127.7 MB in the beginning and 126.6 MB in the end (delta: 1.0 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 768.87 ms. Allocated memory is still 166.7 MB. Free memory was 126.6 MB in the beginning and 104.0 MB in the end (delta: 22.6 MB). Peak memory consumption was 22.0 MB. Max. memory is 8.0 GB. * TraceAbstraction took 5901.85 ms. Allocated memory was 166.7 MB in the beginning and 200.3 MB in the end (delta: 33.6 MB). Free memory was 103.6 MB in the beginning and 67.9 MB in the end (delta: 35.6 MB). Peak memory consumption was 69.6 MB. Max. memory is 8.0 GB. * Witness Printer took 116.89 ms. Allocated memory is still 200.3 MB. Free memory was 67.9 MB in the beginning and 180.5 MB in the end (delta: -112.6 MB). Peak memory consumption was 3.3 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 743 VarBasedMoverChecksPositive, 37 VarBasedMoverChecksNegative, 6 SemBasedMoverChecksPositive, 31 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.4s, 65 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 3.9s, 83 PlacesBefore, 32 PlacesAfterwards, 75 TransitionsBefore, 23 TransitionsAfterwards, 1296 CoEnabledTransitionPairs, 6 FixpointIterations, 18 TrivialSequentialCompositions, 38 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 2 ConcurrentYvCompositions, 1 ChoiceCompositions, 59 TotalNumberOfCompositions, 2653 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, 74 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 5.6s, OverallIterations: 6, TraceHistogramMax: 1, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 4.0s, HoareTripleCheckerStatistics: 150 SDtfs, 152 SDslu, 197 SDs, 0 SdLazy, 72 SolverSat, 21 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 30 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=362occurred 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, 100 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 66 NumberOfCodeBlocks, 66 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 60 ConstructedInterpolants, 0 QuantifiedInterpolants, 3407 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...