/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/safe007_tso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-4f750a8 [2020-12-22 11:06:54,213 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-22 11:06:54,215 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-22 11:06:54,257 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-22 11:06:54,257 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-22 11:06:54,259 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-22 11:06:54,260 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-22 11:06:54,262 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-22 11:06:54,264 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-22 11:06:54,266 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-22 11:06:54,267 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-22 11:06:54,268 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-22 11:06:54,269 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-22 11:06:54,270 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-22 11:06:54,271 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-22 11:06:54,272 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-22 11:06:54,273 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-22 11:06:54,274 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-22 11:06:54,276 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-22 11:06:54,278 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-22 11:06:54,280 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-22 11:06:54,282 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-22 11:06:54,283 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-22 11:06:54,284 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-22 11:06:54,297 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-22 11:06:54,297 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-22 11:06:54,297 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-22 11:06:54,299 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-22 11:06:54,299 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-22 11:06:54,300 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-22 11:06:54,300 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-22 11:06:54,301 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-22 11:06:54,302 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-22 11:06:54,303 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-22 11:06:54,304 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-22 11:06:54,304 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-22 11:06:54,305 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-22 11:06:54,305 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-22 11:06:54,306 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-22 11:06:54,307 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-22 11:06:54,307 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-22 11:06:54,311 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2020-12-22 11:06:54,357 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-22 11:06:54,357 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-22 11:06:54,360 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-22 11:06:54,360 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-22 11:06:54,360 INFO L138 SettingsManager]: * Use SBE=true [2020-12-22 11:06:54,361 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-22 11:06:54,361 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-22 11:06:54,363 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-22 11:06:54,363 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-22 11:06:54,363 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-22 11:06:54,363 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-22 11:06:54,363 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-22 11:06:54,364 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-22 11:06:54,364 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-22 11:06:54,364 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-22 11:06:54,364 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-22 11:06:54,364 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-22 11:06:54,365 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-22 11:06:54,366 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-22 11:06:54,366 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-22 11:06:54,368 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-22 11:06:54,368 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-12-22 11:06:54,368 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-22 11:06:54,368 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-22 11:06:54,369 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-22 11:06:54,369 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-12-22 11:06:54,725 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-22 11:06:54,757 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-22 11:06:54,760 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-22 11:06:54,761 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-22 11:06:54,762 INFO L275 PluginConnector]: CDTParser initialized [2020-12-22 11:06:54,763 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-wmm/safe007_tso.oepc.i [2020-12-22 11:06:54,845 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e805e438d/3392792182c748ccbdb57cf37719b94f/FLAG009159e71 [2020-12-22 11:06:55,541 INFO L306 CDTParser]: Found 1 translation units. [2020-12-22 11:06:55,542 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/safe007_tso.oepc.i [2020-12-22 11:06:55,559 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e805e438d/3392792182c748ccbdb57cf37719b94f/FLAG009159e71 [2020-12-22 11:06:55,761 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e805e438d/3392792182c748ccbdb57cf37719b94f [2020-12-22 11:06:55,768 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-22 11:06:55,771 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-22 11:06:55,774 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-22 11:06:55,774 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-22 11:06:55,779 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-22 11:06:55,780 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 11:06:55" (1/1) ... [2020-12-22 11:06:55,784 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@d926e7b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:06:55, skipping insertion in model container [2020-12-22 11:06:55,785 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 11:06:55" (1/1) ... [2020-12-22 11:06:55,798 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-22 11:06:55,869 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-22 11:06:56,112 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/safe007_tso.oepc.i[950,963] [2020-12-22 11:06:56,347 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-22 11:06:56,355 INFO L203 MainTranslator]: Completed pre-run [2020-12-22 11:06:56,369 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/safe007_tso.oepc.i[950,963] [2020-12-22 11:06:56,398 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-22 11:06:56,488 INFO L208 MainTranslator]: Completed translation [2020-12-22 11:06:56,488 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:06:56 WrapperNode [2020-12-22 11:06:56,489 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-22 11:06:56,490 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-22 11:06:56,490 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-22 11:06:56,490 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-22 11:06:56,499 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:06:56" (1/1) ... [2020-12-22 11:06:56,515 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:06:56" (1/1) ... [2020-12-22 11:06:56,538 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-22 11:06:56,539 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-22 11:06:56,540 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-22 11:06:56,540 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-22 11:06:56,549 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:06:56" (1/1) ... [2020-12-22 11:06:56,549 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:06:56" (1/1) ... [2020-12-22 11:06:56,553 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:06:56" (1/1) ... [2020-12-22 11:06:56,553 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:06:56" (1/1) ... [2020-12-22 11:06:56,560 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:06:56" (1/1) ... [2020-12-22 11:06:56,562 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:06:56" (1/1) ... [2020-12-22 11:06:56,565 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:06:56" (1/1) ... [2020-12-22 11:06:56,568 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-22 11:06:56,569 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-22 11:06:56,569 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-22 11:06:56,569 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-22 11:06:56,570 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:06:56" (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 11:06:56,680 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-12-22 11:06:56,681 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-12-22 11:06:56,681 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-22 11:06:56,681 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-12-22 11:06:56,682 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-12-22 11:06:56,682 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-12-22 11:06:56,682 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-12-22 11:06:56,682 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-12-22 11:06:56,682 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-12-22 11:06:56,683 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-12-22 11:06:56,683 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-22 11:06:56,683 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-12-22 11:06:56,683 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-22 11:06:56,684 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-22 11:06:56,685 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 11:06:57,124 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-22 11:06:57,125 INFO L299 CfgBuilder]: Removed 8 assume(true) statements. [2020-12-22 11:06:57,128 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 11:06:57 BoogieIcfgContainer [2020-12-22 11:06:57,128 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-22 11:06:57,132 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-22 11:06:57,132 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-22 11:06:57,136 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-22 11:06:57,136 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.12 11:06:55" (1/3) ... [2020-12-22 11:06:57,138 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3b6310c0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 11:06:57, skipping insertion in model container [2020-12-22 11:06:57,138 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:06:56" (2/3) ... [2020-12-22 11:06:57,139 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3b6310c0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 11:06:57, skipping insertion in model container [2020-12-22 11:06:57,139 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 11:06:57" (3/3) ... [2020-12-22 11:06:57,140 INFO L111 eAbstractionObserver]: Analyzing ICFG safe007_tso.oepc.i [2020-12-22 11:06:57,154 WARN L142 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-12-22 11:06:57,154 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-22 11:06:57,160 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-12-22 11:06:57,161 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-12-22 11:06:57,207 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:06:57,207 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:06:57,207 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:06:57,208 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:06:57,208 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:06:57,208 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:06:57,208 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:06:57,209 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:06:57,209 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:06:57,209 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:06:57,210 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:06:57,210 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:06:57,212 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:06:57,212 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:06:57,212 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:06:57,213 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:06:57,213 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:06:57,213 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:06:57,213 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:06:57,214 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:06:57,214 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:06:57,214 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:06:57,215 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:06:57,215 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:06:57,217 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:06:57,218 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:06:57,218 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:06:57,218 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:06:57,220 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:06:57,220 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:06:57,220 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:06:57,221 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:06:57,222 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:06:57,222 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:06:57,222 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:06:57,223 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:06:57,227 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:06:57,228 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:06:57,229 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:06:57,229 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:06:57,241 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:06:57,242 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:06:57,242 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:06:57,243 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:06:57,245 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:06:57,246 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:06:57,246 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:06:57,246 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:06:57,253 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2020-12-22 11:06:57,273 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-12-22 11:06:57,309 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-22 11:06:57,310 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-22 11:06:57,310 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-22 11:06:57,310 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-22 11:06:57,310 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-22 11:06:57,310 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-22 11:06:57,311 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-22 11:06:57,311 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-22 11:06:57,327 INFO L120 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2020-12-22 11:06:57,329 INFO L135 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 84 places, 76 transitions, 167 flow [2020-12-22 11:06:57,333 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 84 places, 76 transitions, 167 flow [2020-12-22 11:06:57,335 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 84 places, 76 transitions, 167 flow [2020-12-22 11:06:57,409 INFO L129 PetriNetUnfolder]: 2/73 cut-off events. [2020-12-22 11:06:57,409 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-12-22 11:06:57,414 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 11:06:57,418 INFO L116 LiptonReduction]: Number of co-enabled transitions 1296 [2020-12-22 11:07:00,300 WARN L197 SmtUtils]: Spent 249.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 78 [2020-12-22 11:07:00,415 WARN L197 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 74 [2020-12-22 11:07:00,649 WARN L197 SmtUtils]: Spent 232.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 78 [2020-12-22 11:07:00,764 WARN L197 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 74 [2020-12-22 11:07:01,072 INFO L131 LiptonReduction]: Checked pairs total: 2541 [2020-12-22 11:07:01,072 INFO L133 LiptonReduction]: Total number of compositions: 64 [2020-12-22 11:07:01,078 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 31 places, 21 transitions, 57 flow [2020-12-22 11:07:01,105 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 298 states. [2020-12-22 11:07:01,107 INFO L276 IsEmpty]: Start isEmpty. Operand 298 states. [2020-12-22 11:07:01,114 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-12-22 11:07:01,115 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 11:07:01,115 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 11:07:01,116 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 11:07:01,121 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 11:07:01,122 INFO L82 PathProgramCache]: Analyzing trace with hash 995547002, now seen corresponding path program 1 times [2020-12-22 11:07:01,132 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 11:07:01,132 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1164031158] [2020-12-22 11:07:01,133 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 11:07:01,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 11:07:01,445 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 11:07:01,446 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1164031158] [2020-12-22 11:07:01,447 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 11:07:01,447 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-12-22 11:07:01,448 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1742566453] [2020-12-22 11:07:01,455 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 11:07:01,455 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 11:07:01,472 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 11:07:01,473 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 11:07:01,475 INFO L87 Difference]: Start difference. First operand 298 states. Second operand 3 states. [2020-12-22 11:07:01,525 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 11:07:01,525 INFO L93 Difference]: Finished difference Result 360 states and 1001 transitions. [2020-12-22 11:07:01,526 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 11:07:01,528 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2020-12-22 11:07:01,528 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 11:07:01,544 INFO L225 Difference]: With dead ends: 360 [2020-12-22 11:07:01,544 INFO L226 Difference]: Without dead ends: 233 [2020-12-22 11:07:01,547 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 11:07:01,580 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 233 states. [2020-12-22 11:07:01,641 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 233 to 233. [2020-12-22 11:07:01,643 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 233 states. [2020-12-22 11:07:01,655 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 233 states to 233 states and 652 transitions. [2020-12-22 11:07:01,660 INFO L78 Accepts]: Start accepts. Automaton has 233 states and 652 transitions. Word has length 8 [2020-12-22 11:07:01,661 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 11:07:01,662 INFO L481 AbstractCegarLoop]: Abstraction has 233 states and 652 transitions. [2020-12-22 11:07:01,662 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 11:07:01,663 INFO L276 IsEmpty]: Start isEmpty. Operand 233 states and 652 transitions. [2020-12-22 11:07:01,665 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-12-22 11:07:01,665 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 11:07:01,665 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 11:07:01,666 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-22 11:07:01,666 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 11:07:01,669 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 11:07:01,669 INFO L82 PathProgramCache]: Analyzing trace with hash 755699245, now seen corresponding path program 1 times [2020-12-22 11:07:01,669 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 11:07:01,670 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [942847689] [2020-12-22 11:07:01,671 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 11:07:01,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 11:07:01,831 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 11:07:01,832 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [942847689] [2020-12-22 11:07:01,832 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 11:07:01,832 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-22 11:07:01,833 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [96799319] [2020-12-22 11:07:01,834 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-22 11:07:01,834 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 11:07:01,835 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-22 11:07:01,835 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-22 11:07:01,835 INFO L87 Difference]: Start difference. First operand 233 states and 652 transitions. Second operand 4 states. [2020-12-22 11:07:01,882 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 11:07:01,882 INFO L93 Difference]: Finished difference Result 383 states and 1016 transitions. [2020-12-22 11:07:01,891 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-22 11:07:01,891 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 9 [2020-12-22 11:07:01,891 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 11:07:01,895 INFO L225 Difference]: With dead ends: 383 [2020-12-22 11:07:01,895 INFO L226 Difference]: Without dead ends: 329 [2020-12-22 11:07:01,896 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 11:07:01,899 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 329 states. [2020-12-22 11:07:01,921 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 329 to 284. [2020-12-22 11:07:01,922 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 284 states. [2020-12-22 11:07:01,924 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 284 states to 284 states and 779 transitions. [2020-12-22 11:07:01,924 INFO L78 Accepts]: Start accepts. Automaton has 284 states and 779 transitions. Word has length 9 [2020-12-22 11:07:01,924 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 11:07:01,924 INFO L481 AbstractCegarLoop]: Abstraction has 284 states and 779 transitions. [2020-12-22 11:07:01,925 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-22 11:07:01,925 INFO L276 IsEmpty]: Start isEmpty. Operand 284 states and 779 transitions. [2020-12-22 11:07:01,926 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-12-22 11:07:01,926 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 11:07:01,926 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 11:07:01,926 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-12-22 11:07:01,927 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 11:07:01,927 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 11:07:01,927 INFO L82 PathProgramCache]: Analyzing trace with hash 797195438, now seen corresponding path program 1 times [2020-12-22 11:07:01,928 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 11:07:01,928 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1124125186] [2020-12-22 11:07:01,928 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 11:07:01,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 11:07:01,984 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 11:07:01,984 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1124125186] [2020-12-22 11:07:01,984 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 11:07:01,985 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-22 11:07:01,985 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1636797061] [2020-12-22 11:07:01,985 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-22 11:07:01,986 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 11:07:01,986 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-22 11:07:01,986 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-12-22 11:07:01,987 INFO L87 Difference]: Start difference. First operand 284 states and 779 transitions. Second operand 4 states. [2020-12-22 11:07:02,004 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 11:07:02,004 INFO L93 Difference]: Finished difference Result 269 states and 727 transitions. [2020-12-22 11:07:02,005 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 11:07:02,005 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 9 [2020-12-22 11:07:02,005 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 11:07:02,008 INFO L225 Difference]: With dead ends: 269 [2020-12-22 11:07:02,008 INFO L226 Difference]: Without dead ends: 269 [2020-12-22 11:07:02,009 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 11:07:02,010 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 269 states. [2020-12-22 11:07:02,034 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 269 to 269. [2020-12-22 11:07:02,035 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 269 states. [2020-12-22 11:07:02,038 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 269 states to 269 states and 727 transitions. [2020-12-22 11:07:02,038 INFO L78 Accepts]: Start accepts. Automaton has 269 states and 727 transitions. Word has length 9 [2020-12-22 11:07:02,038 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 11:07:02,038 INFO L481 AbstractCegarLoop]: Abstraction has 269 states and 727 transitions. [2020-12-22 11:07:02,038 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-22 11:07:02,039 INFO L276 IsEmpty]: Start isEmpty. Operand 269 states and 727 transitions. [2020-12-22 11:07:02,043 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-12-22 11:07:02,043 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 11:07:02,043 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 11:07:02,044 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-12-22 11:07:02,044 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 11:07:02,046 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 11:07:02,047 INFO L82 PathProgramCache]: Analyzing trace with hash 1951849563, now seen corresponding path program 1 times [2020-12-22 11:07:02,048 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 11:07:02,048 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1849341634] [2020-12-22 11:07:02,048 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 11:07:02,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 11:07:02,121 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 11:07:02,122 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1849341634] [2020-12-22 11:07:02,122 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 11:07:02,122 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-22 11:07:02,122 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [563807264] [2020-12-22 11:07:02,123 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-22 11:07:02,123 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 11:07:02,123 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-22 11:07:02,124 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-22 11:07:02,124 INFO L87 Difference]: Start difference. First operand 269 states and 727 transitions. Second operand 4 states. [2020-12-22 11:07:02,144 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 11:07:02,144 INFO L93 Difference]: Finished difference Result 290 states and 749 transitions. [2020-12-22 11:07:02,145 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-22 11:07:02,145 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 10 [2020-12-22 11:07:02,145 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 11:07:02,147 INFO L225 Difference]: With dead ends: 290 [2020-12-22 11:07:02,147 INFO L226 Difference]: Without dead ends: 176 [2020-12-22 11:07:02,147 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 11:07:02,148 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 176 states. [2020-12-22 11:07:02,152 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 176 to 140. [2020-12-22 11:07:02,152 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 140 states. [2020-12-22 11:07:02,153 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 140 states to 140 states and 339 transitions. [2020-12-22 11:07:02,153 INFO L78 Accepts]: Start accepts. Automaton has 140 states and 339 transitions. Word has length 10 [2020-12-22 11:07:02,154 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 11:07:02,154 INFO L481 AbstractCegarLoop]: Abstraction has 140 states and 339 transitions. [2020-12-22 11:07:02,154 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-22 11:07:02,154 INFO L276 IsEmpty]: Start isEmpty. Operand 140 states and 339 transitions. [2020-12-22 11:07:02,155 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-12-22 11:07:02,155 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 11:07:02,155 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 11:07:02,155 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-12-22 11:07:02,156 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 11:07:02,156 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 11:07:02,156 INFO L82 PathProgramCache]: Analyzing trace with hash -1183830127, now seen corresponding path program 1 times [2020-12-22 11:07:02,156 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 11:07:02,157 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [228434455] [2020-12-22 11:07:02,157 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 11:07:02,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 11:07:02,215 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 11:07:02,215 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [228434455] [2020-12-22 11:07:02,216 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 11:07:02,216 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 11:07:02,216 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1381996805] [2020-12-22 11:07:02,216 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-22 11:07:02,217 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 11:07:02,217 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-22 11:07:02,217 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-12-22 11:07:02,218 INFO L87 Difference]: Start difference. First operand 140 states and 339 transitions. Second operand 5 states. [2020-12-22 11:07:02,240 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 11:07:02,240 INFO L93 Difference]: Finished difference Result 158 states and 372 transitions. [2020-12-22 11:07:02,240 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-22 11:07:02,240 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 12 [2020-12-22 11:07:02,241 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 11:07:02,241 INFO L225 Difference]: With dead ends: 158 [2020-12-22 11:07:02,241 INFO L226 Difference]: Without dead ends: 68 [2020-12-22 11:07:02,242 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 11:07:02,242 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states. [2020-12-22 11:07:02,244 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 68. [2020-12-22 11:07:02,244 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 68 states. [2020-12-22 11:07:02,245 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 144 transitions. [2020-12-22 11:07:02,245 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 144 transitions. Word has length 12 [2020-12-22 11:07:02,245 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 11:07:02,245 INFO L481 AbstractCegarLoop]: Abstraction has 68 states and 144 transitions. [2020-12-22 11:07:02,245 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-22 11:07:02,245 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 144 transitions. [2020-12-22 11:07:02,246 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-12-22 11:07:02,246 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 11:07:02,246 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 11:07:02,246 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-12-22 11:07:02,246 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 11:07:02,247 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 11:07:02,247 INFO L82 PathProgramCache]: Analyzing trace with hash -936336033, now seen corresponding path program 1 times [2020-12-22 11:07:02,247 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 11:07:02,248 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [83629875] [2020-12-22 11:07:02,248 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 11:07:02,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 11:07:02,301 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 11:07:02,301 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [83629875] [2020-12-22 11:07:02,301 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 11:07:02,301 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 11:07:02,302 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2005554204] [2020-12-22 11:07:02,302 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-22 11:07:02,302 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 11:07:02,303 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-22 11:07:02,303 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-12-22 11:07:02,303 INFO L87 Difference]: Start difference. First operand 68 states and 144 transitions. Second operand 5 states. [2020-12-22 11:07:02,317 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 11:07:02,317 INFO L93 Difference]: Finished difference Result 56 states and 112 transitions. [2020-12-22 11:07:02,317 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-22 11:07:02,317 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 13 [2020-12-22 11:07:02,318 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 11:07:02,318 INFO L225 Difference]: With dead ends: 56 [2020-12-22 11:07:02,318 INFO L226 Difference]: Without dead ends: 0 [2020-12-22 11:07:02,318 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 11:07:02,319 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-12-22 11:07:02,319 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-12-22 11:07:02,319 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-12-22 11:07:02,319 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-12-22 11:07:02,319 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 13 [2020-12-22 11:07:02,319 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 11:07:02,319 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-12-22 11:07:02,320 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-22 11:07:02,320 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-12-22 11:07:02,320 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-12-22 11:07:02,320 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-12-22 11:07:02,324 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.12 11:07:02 BasicIcfg [2020-12-22 11:07:02,324 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-12-22 11:07:02,324 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-22 11:07:02,324 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-22 11:07:02,325 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-22 11:07:02,325 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 11:06:57" (3/4) ... [2020-12-22 11:07:02,328 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-12-22 11:07:02,335 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2020-12-22 11:07:02,335 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2020-12-22 11:07:02,335 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P2 [2020-12-22 11:07:02,339 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 14 nodes and edges [2020-12-22 11:07:02,340 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2020-12-22 11:07:02,340 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-12-22 11:07:02,340 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-12-22 11:07:02,384 INFO L141 WitnessManager]: Wrote witness to /storage/repos/svcomp/c/pthread-wmm/safe007_tso.oepc.i-witness.graphml [2020-12-22 11:07:02,385 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-22 11:07:02,386 INFO L168 Benchmark]: Toolchain (without parser) took 6615.00 ms. Allocated memory was 152.0 MB in the beginning and 219.2 MB in the end (delta: 67.1 MB). Free memory was 126.0 MB in the beginning and 102.8 MB in the end (delta: 23.1 MB). Peak memory consumption was 90.8 MB. Max. memory is 8.0 GB. [2020-12-22 11:07:02,387 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 152.0 MB. Free memory is still 125.0 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-12-22 11:07:02,387 INFO L168 Benchmark]: CACSL2BoogieTranslator took 715.42 ms. Allocated memory is still 152.0 MB. Free memory was 125.7 MB in the beginning and 95.0 MB in the end (delta: 30.7 MB). Peak memory consumption was 30.4 MB. Max. memory is 8.0 GB. [2020-12-22 11:07:02,388 INFO L168 Benchmark]: Boogie Procedure Inliner took 49.01 ms. Allocated memory is still 152.0 MB. Free memory was 95.0 MB in the beginning and 92.9 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2020-12-22 11:07:02,388 INFO L168 Benchmark]: Boogie Preprocessor took 28.77 ms. Allocated memory is still 152.0 MB. Free memory was 92.9 MB in the beginning and 91.6 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2020-12-22 11:07:02,389 INFO L168 Benchmark]: RCFGBuilder took 559.32 ms. Allocated memory is still 152.0 MB. Free memory was 91.6 MB in the beginning and 121.3 MB in the end (delta: -29.7 MB). Peak memory consumption was 13.6 MB. Max. memory is 8.0 GB. [2020-12-22 11:07:02,390 INFO L168 Benchmark]: TraceAbstraction took 5191.84 ms. Allocated memory was 152.0 MB in the beginning and 219.2 MB in the end (delta: 67.1 MB). Free memory was 120.8 MB in the beginning and 105.4 MB in the end (delta: 15.3 MB). Peak memory consumption was 82.4 MB. Max. memory is 8.0 GB. [2020-12-22 11:07:02,390 INFO L168 Benchmark]: Witness Printer took 60.42 ms. Allocated memory is still 219.2 MB. Free memory was 105.4 MB in the beginning and 102.8 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2020-12-22 11:07:02,394 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 152.0 MB. Free memory is still 125.0 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 715.42 ms. Allocated memory is still 152.0 MB. Free memory was 125.7 MB in the beginning and 95.0 MB in the end (delta: 30.7 MB). Peak memory consumption was 30.4 MB. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 49.01 ms. Allocated memory is still 152.0 MB. Free memory was 95.0 MB in the beginning and 92.9 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 28.77 ms. Allocated memory is still 152.0 MB. Free memory was 92.9 MB in the beginning and 91.6 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 559.32 ms. Allocated memory is still 152.0 MB. Free memory was 91.6 MB in the beginning and 121.3 MB in the end (delta: -29.7 MB). Peak memory consumption was 13.6 MB. Max. memory is 8.0 GB. * TraceAbstraction took 5191.84 ms. Allocated memory was 152.0 MB in the beginning and 219.2 MB in the end (delta: 67.1 MB). Free memory was 120.8 MB in the beginning and 105.4 MB in the end (delta: 15.3 MB). Peak memory consumption was 82.4 MB. Max. memory is 8.0 GB. * Witness Printer took 60.42 ms. Allocated memory is still 219.2 MB. Free memory was 105.4 MB in the beginning and 102.8 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: 0.3s, 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: 5.0s, OverallIterations: 6, TraceHistogramMax: 1, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 3.7s, 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, 0.0s 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...