/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/safe014_pso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-4f750a8 [2020-12-22 11:08:32,937 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-22 11:08:32,940 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-22 11:08:32,977 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-22 11:08:32,978 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-22 11:08:32,979 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-22 11:08:32,981 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-22 11:08:32,984 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-22 11:08:32,986 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-22 11:08:32,987 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-22 11:08:32,989 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-22 11:08:32,990 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-22 11:08:32,991 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-22 11:08:32,992 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-22 11:08:32,994 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-22 11:08:32,995 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-22 11:08:32,996 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-22 11:08:32,998 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-22 11:08:33,000 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-22 11:08:33,003 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-22 11:08:33,005 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-22 11:08:33,006 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-22 11:08:33,024 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-22 11:08:33,025 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-22 11:08:33,028 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-22 11:08:33,029 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-22 11:08:33,029 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-22 11:08:33,030 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-22 11:08:33,031 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-22 11:08:33,032 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-22 11:08:33,033 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-22 11:08:33,034 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-22 11:08:33,035 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-22 11:08:33,036 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-22 11:08:33,037 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-22 11:08:33,037 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-22 11:08:33,038 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-22 11:08:33,039 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-22 11:08:33,039 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-22 11:08:33,040 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-22 11:08:33,041 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-22 11:08:33,042 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2020-12-22 11:08:33,072 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-22 11:08:33,072 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-22 11:08:33,074 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-22 11:08:33,074 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-22 11:08:33,075 INFO L138 SettingsManager]: * Use SBE=true [2020-12-22 11:08:33,075 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-22 11:08:33,076 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-22 11:08:33,076 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-22 11:08:33,076 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-22 11:08:33,077 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-22 11:08:33,077 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-22 11:08:33,077 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-22 11:08:33,078 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-22 11:08:33,078 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-22 11:08:33,078 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-22 11:08:33,079 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-22 11:08:33,079 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-22 11:08:33,079 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-22 11:08:33,080 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-22 11:08:33,080 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-22 11:08:33,080 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-22 11:08:33,081 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-12-22 11:08:33,081 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-22 11:08:33,081 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-22 11:08:33,082 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-22 11:08:33,082 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-12-22 11:08:33,548 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-22 11:08:33,581 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-22 11:08:33,585 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-22 11:08:33,587 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-22 11:08:33,587 INFO L275 PluginConnector]: CDTParser initialized [2020-12-22 11:08:33,588 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-wmm/safe014_pso.oepc.i [2020-12-22 11:08:33,673 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dea4d007c/7e9a7b4fc56443f9a26057e700da03ec/FLAG2c6d8f486 [2020-12-22 11:08:34,381 INFO L306 CDTParser]: Found 1 translation units. [2020-12-22 11:08:34,382 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/safe014_pso.oepc.i [2020-12-22 11:08:34,403 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dea4d007c/7e9a7b4fc56443f9a26057e700da03ec/FLAG2c6d8f486 [2020-12-22 11:08:34,613 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dea4d007c/7e9a7b4fc56443f9a26057e700da03ec [2020-12-22 11:08:34,621 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-22 11:08:34,624 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-22 11:08:34,630 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-22 11:08:34,630 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-22 11:08:34,634 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-22 11:08:34,635 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 11:08:34" (1/1) ... [2020-12-22 11:08:34,637 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@96eeb7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:08:34, skipping insertion in model container [2020-12-22 11:08:34,637 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 11:08:34" (1/1) ... [2020-12-22 11:08:34,650 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-22 11:08:34,724 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-22 11:08:34,906 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/safe014_pso.oepc.i[950,963] [2020-12-22 11:08:35,147 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-22 11:08:35,157 INFO L203 MainTranslator]: Completed pre-run [2020-12-22 11:08:35,173 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/safe014_pso.oepc.i[950,963] [2020-12-22 11:08:35,207 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-22 11:08:35,299 INFO L208 MainTranslator]: Completed translation [2020-12-22 11:08:35,300 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:08:35 WrapperNode [2020-12-22 11:08:35,300 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-22 11:08:35,306 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-22 11:08:35,306 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-22 11:08:35,307 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-22 11:08:35,316 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:08:35" (1/1) ... [2020-12-22 11:08:35,359 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:08:35" (1/1) ... [2020-12-22 11:08:35,387 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-22 11:08:35,388 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-22 11:08:35,388 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-22 11:08:35,388 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-22 11:08:35,398 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:08:35" (1/1) ... [2020-12-22 11:08:35,398 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:08:35" (1/1) ... [2020-12-22 11:08:35,402 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:08:35" (1/1) ... [2020-12-22 11:08:35,402 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:08:35" (1/1) ... [2020-12-22 11:08:35,409 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:08:35" (1/1) ... [2020-12-22 11:08:35,411 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:08:35" (1/1) ... [2020-12-22 11:08:35,414 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:08:35" (1/1) ... [2020-12-22 11:08:35,417 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-22 11:08:35,418 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-22 11:08:35,419 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-22 11:08:35,419 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-22 11:08:35,420 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:08:35" (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 11:08:35,533 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-12-22 11:08:35,534 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-12-22 11:08:35,534 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-22 11:08:35,534 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-12-22 11:08:35,534 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-12-22 11:08:35,535 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-12-22 11:08:35,535 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-12-22 11:08:35,535 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-12-22 11:08:35,535 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-12-22 11:08:35,536 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-12-22 11:08:35,536 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-22 11:08:35,536 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-12-22 11:08:35,536 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-22 11:08:35,536 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-22 11:08:35,538 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 11:08:35,935 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-22 11:08:35,935 INFO L299 CfgBuilder]: Removed 8 assume(true) statements. [2020-12-22 11:08:35,937 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 11:08:35 BoogieIcfgContainer [2020-12-22 11:08:35,937 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-22 11:08:35,939 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-22 11:08:35,939 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-22 11:08:35,942 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-22 11:08:35,943 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.12 11:08:34" (1/3) ... [2020-12-22 11:08:35,944 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6024e8a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 11:08:35, skipping insertion in model container [2020-12-22 11:08:35,944 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:08:35" (2/3) ... [2020-12-22 11:08:35,944 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6024e8a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 11:08:35, skipping insertion in model container [2020-12-22 11:08:35,944 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 11:08:35" (3/3) ... [2020-12-22 11:08:35,946 INFO L111 eAbstractionObserver]: Analyzing ICFG safe014_pso.oepc.i [2020-12-22 11:08:35,954 WARN L142 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-12-22 11:08:35,954 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-22 11:08:35,959 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-12-22 11:08:35,960 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-12-22 11:08:35,993 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:08:35,993 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:08:35,993 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:08:35,994 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:08:35,994 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:08:35,994 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:08:35,994 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:08:35,995 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:08:35,995 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:08:35,996 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:08:35,996 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:08:35,996 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:08:35,997 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:08:35,997 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:08:35,997 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:08:35,997 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:08:35,998 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:08:35,998 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:08:35,998 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:08:35,998 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:08:35,999 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:08:35,999 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:08:35,999 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:08:36,000 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:08:36,000 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:08:36,000 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:08:36,000 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:08:36,001 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:08:36,001 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:08:36,001 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:08:36,001 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:08:36,001 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:08:36,002 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:08:36,002 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:08:36,002 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:08:36,003 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:08:36,005 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:08:36,005 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:08:36,006 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:08:36,006 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:08:36,011 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:08:36,011 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:08:36,011 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:08:36,012 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:08:36,014 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:08:36,014 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:08:36,014 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:08:36,015 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:08:36,017 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2020-12-22 11:08:36,040 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-12-22 11:08:36,066 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-22 11:08:36,066 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-22 11:08:36,066 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-22 11:08:36,066 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-22 11:08:36,066 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-22 11:08:36,067 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-22 11:08:36,067 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-22 11:08:36,067 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-22 11:08:36,081 INFO L120 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2020-12-22 11:08:36,084 INFO L135 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 83 places, 75 transitions, 165 flow [2020-12-22 11:08:36,087 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 83 places, 75 transitions, 165 flow [2020-12-22 11:08:36,090 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 83 places, 75 transitions, 165 flow [2020-12-22 11:08:36,141 INFO L129 PetriNetUnfolder]: 2/72 cut-off events. [2020-12-22 11:08:36,142 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-12-22 11:08:36,153 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 11:08:36,155 INFO L116 LiptonReduction]: Number of co-enabled transitions 1296 [2020-12-22 11:08:39,151 WARN L197 SmtUtils]: Spent 228.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 76 [2020-12-22 11:08:39,270 WARN L197 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 72 [2020-12-22 11:08:39,514 WARN L197 SmtUtils]: Spent 242.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 76 [2020-12-22 11:08:39,620 WARN L197 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 72 [2020-12-22 11:08:39,625 INFO L131 LiptonReduction]: Checked pairs total: 2653 [2020-12-22 11:08:39,626 INFO L133 LiptonReduction]: Total number of compositions: 59 [2020-12-22 11:08:39,633 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 32 places, 23 transitions, 61 flow [2020-12-22 11:08:39,665 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 362 states. [2020-12-22 11:08:39,667 INFO L276 IsEmpty]: Start isEmpty. Operand 362 states. [2020-12-22 11:08:39,675 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-12-22 11:08:39,675 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 11:08:39,676 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 11:08:39,676 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 11:08:39,682 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 11:08:39,682 INFO L82 PathProgramCache]: Analyzing trace with hash -991402129, now seen corresponding path program 1 times [2020-12-22 11:08:39,693 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 11:08:39,694 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1553238424] [2020-12-22 11:08:39,694 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 11:08:39,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 11:08:39,878 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 11:08:39,878 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1553238424] [2020-12-22 11:08:39,879 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 11:08:39,880 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-22 11:08:39,880 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1472522881] [2020-12-22 11:08:39,885 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-12-22 11:08:39,886 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 11:08:39,902 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-12-22 11:08:39,903 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-12-22 11:08:39,905 INFO L87 Difference]: Start difference. First operand 362 states. Second operand 2 states. [2020-12-22 11:08:39,940 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 11:08:39,940 INFO L93 Difference]: Finished difference Result 362 states and 1072 transitions. [2020-12-22 11:08:39,940 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-12-22 11:08:39,942 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 8 [2020-12-22 11:08:39,942 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 11:08:39,960 INFO L225 Difference]: With dead ends: 362 [2020-12-22 11:08:39,960 INFO L226 Difference]: Without dead ends: 298 [2020-12-22 11:08:39,962 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 11:08:39,991 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 298 states. [2020-12-22 11:08:40,038 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 298 to 298. [2020-12-22 11:08:40,040 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 298 states. [2020-12-22 11:08:40,052 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 298 states to 298 states and 864 transitions. [2020-12-22 11:08:40,054 INFO L78 Accepts]: Start accepts. Automaton has 298 states and 864 transitions. Word has length 8 [2020-12-22 11:08:40,055 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 11:08:40,057 INFO L481 AbstractCegarLoop]: Abstraction has 298 states and 864 transitions. [2020-12-22 11:08:40,058 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-12-22 11:08:40,058 INFO L276 IsEmpty]: Start isEmpty. Operand 298 states and 864 transitions. [2020-12-22 11:08:40,059 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-12-22 11:08:40,059 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 11:08:40,060 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 11:08:40,062 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-22 11:08:40,062 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 11:08:40,063 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 11:08:40,063 INFO L82 PathProgramCache]: Analyzing trace with hash -668714259, now seen corresponding path program 1 times [2020-12-22 11:08:40,064 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 11:08:40,064 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [680185695] [2020-12-22 11:08:40,064 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 11:08:40,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 11:08:40,321 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 11:08:40,322 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [680185695] [2020-12-22 11:08:40,322 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 11:08:40,322 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-22 11:08:40,323 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1243768282] [2020-12-22 11:08:40,325 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-22 11:08:40,326 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 11:08:40,327 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-22 11:08:40,328 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-22 11:08:40,328 INFO L87 Difference]: Start difference. First operand 298 states and 864 transitions. Second operand 4 states. [2020-12-22 11:08:40,381 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 11:08:40,381 INFO L93 Difference]: Finished difference Result 330 states and 912 transitions. [2020-12-22 11:08:40,382 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-22 11:08:40,382 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 9 [2020-12-22 11:08:40,382 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 11:08:40,389 INFO L225 Difference]: With dead ends: 330 [2020-12-22 11:08:40,389 INFO L226 Difference]: Without dead ends: 266 [2020-12-22 11:08:40,390 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 11:08:40,396 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 266 states. [2020-12-22 11:08:40,419 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 266 to 266. [2020-12-22 11:08:40,419 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 266 states. [2020-12-22 11:08:40,421 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 266 states to 266 states and 752 transitions. [2020-12-22 11:08:40,422 INFO L78 Accepts]: Start accepts. Automaton has 266 states and 752 transitions. Word has length 9 [2020-12-22 11:08:40,422 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 11:08:40,422 INFO L481 AbstractCegarLoop]: Abstraction has 266 states and 752 transitions. [2020-12-22 11:08:40,422 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-22 11:08:40,422 INFO L276 IsEmpty]: Start isEmpty. Operand 266 states and 752 transitions. [2020-12-22 11:08:40,424 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-12-22 11:08:40,424 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 11:08:40,424 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 11:08:40,424 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-12-22 11:08:40,425 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 11:08:40,425 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 11:08:40,425 INFO L82 PathProgramCache]: Analyzing trace with hash 744680885, now seen corresponding path program 1 times [2020-12-22 11:08:40,426 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 11:08:40,426 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [214148419] [2020-12-22 11:08:40,426 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 11:08:40,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 11:08:40,514 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 11:08:40,515 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [214148419] [2020-12-22 11:08:40,515 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 11:08:40,515 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 11:08:40,515 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [529235415] [2020-12-22 11:08:40,516 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-22 11:08:40,516 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 11:08:40,517 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-22 11:08:40,517 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-22 11:08:40,517 INFO L87 Difference]: Start difference. First operand 266 states and 752 transitions. Second operand 5 states. [2020-12-22 11:08:40,597 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 11:08:40,597 INFO L93 Difference]: Finished difference Result 362 states and 1008 transitions. [2020-12-22 11:08:40,598 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-12-22 11:08:40,598 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 10 [2020-12-22 11:08:40,598 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 11:08:40,600 INFO L225 Difference]: With dead ends: 362 [2020-12-22 11:08:40,600 INFO L226 Difference]: Without dead ends: 218 [2020-12-22 11:08:40,601 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-12-22 11:08:40,602 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 218 states. [2020-12-22 11:08:40,610 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 218 to 218. [2020-12-22 11:08:40,611 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 218 states. [2020-12-22 11:08:40,612 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 218 states to 218 states and 592 transitions. [2020-12-22 11:08:40,612 INFO L78 Accepts]: Start accepts. Automaton has 218 states and 592 transitions. Word has length 10 [2020-12-22 11:08:40,613 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 11:08:40,613 INFO L481 AbstractCegarLoop]: Abstraction has 218 states and 592 transitions. [2020-12-22 11:08:40,613 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-22 11:08:40,613 INFO L276 IsEmpty]: Start isEmpty. Operand 218 states and 592 transitions. [2020-12-22 11:08:40,614 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-12-22 11:08:40,615 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 11:08:40,615 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 11:08:40,615 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-12-22 11:08:40,615 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 11:08:40,616 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 11:08:40,616 INFO L82 PathProgramCache]: Analyzing trace with hash -1281410722, now seen corresponding path program 1 times [2020-12-22 11:08:40,616 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 11:08:40,616 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1112813979] [2020-12-22 11:08:40,617 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 11:08:40,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 11:08:40,724 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 11:08:40,725 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1112813979] [2020-12-22 11:08:40,725 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 11:08:40,725 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-22 11:08:40,726 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [540527251] [2020-12-22 11:08:40,726 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-22 11:08:40,726 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 11:08:40,727 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-22 11:08:40,730 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-22 11:08:40,731 INFO L87 Difference]: Start difference. First operand 218 states and 592 transitions. Second operand 5 states. [2020-12-22 11:08:40,805 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 11:08:40,805 INFO L93 Difference]: Finished difference Result 278 states and 737 transitions. [2020-12-22 11:08:40,806 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-12-22 11:08:40,806 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 11 [2020-12-22 11:08:40,806 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 11:08:40,807 INFO L225 Difference]: With dead ends: 278 [2020-12-22 11:08:40,808 INFO L226 Difference]: Without dead ends: 170 [2020-12-22 11:08:40,808 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-12-22 11:08:40,810 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 170 states. [2020-12-22 11:08:40,814 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 170 to 170. [2020-12-22 11:08:40,815 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 170 states. [2020-12-22 11:08:40,816 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 170 states to 170 states and 432 transitions. [2020-12-22 11:08:40,816 INFO L78 Accepts]: Start accepts. Automaton has 170 states and 432 transitions. Word has length 11 [2020-12-22 11:08:40,816 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 11:08:40,816 INFO L481 AbstractCegarLoop]: Abstraction has 170 states and 432 transitions. [2020-12-22 11:08:40,816 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-22 11:08:40,817 INFO L276 IsEmpty]: Start isEmpty. Operand 170 states and 432 transitions. [2020-12-22 11:08:40,818 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-12-22 11:08:40,818 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 11:08:40,818 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 11:08:40,818 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-12-22 11:08:40,819 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 11:08:40,819 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 11:08:40,819 INFO L82 PathProgramCache]: Analyzing trace with hash -663598862, now seen corresponding path program 1 times [2020-12-22 11:08:40,820 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 11:08:40,820 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1635617515] [2020-12-22 11:08:40,820 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 11:08:40,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 11:08:40,936 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 11:08:40,937 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1635617515] [2020-12-22 11:08:40,937 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 11:08:40,937 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-22 11:08:40,937 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1902498551] [2020-12-22 11:08:40,938 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-22 11:08:40,938 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 11:08:40,939 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-22 11:08:40,941 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-22 11:08:40,941 INFO L87 Difference]: Start difference. First operand 170 states and 432 transitions. Second operand 4 states. [2020-12-22 11:08:40,968 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 11:08:40,969 INFO L93 Difference]: Finished difference Result 182 states and 446 transitions. [2020-12-22 11:08:40,969 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-22 11:08:40,969 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 12 [2020-12-22 11:08:40,970 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 11:08:40,971 INFO L225 Difference]: With dead ends: 182 [2020-12-22 11:08:40,971 INFO L226 Difference]: Without dead ends: 158 [2020-12-22 11:08:40,971 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 11:08:40,972 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 158 states. [2020-12-22 11:08:40,977 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 158 to 158. [2020-12-22 11:08:40,977 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 158 states. [2020-12-22 11:08:40,978 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 158 states to 158 states and 394 transitions. [2020-12-22 11:08:40,980 INFO L78 Accepts]: Start accepts. Automaton has 158 states and 394 transitions. Word has length 12 [2020-12-22 11:08:40,980 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 11:08:40,980 INFO L481 AbstractCegarLoop]: Abstraction has 158 states and 394 transitions. [2020-12-22 11:08:40,981 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-22 11:08:40,981 INFO L276 IsEmpty]: Start isEmpty. Operand 158 states and 394 transitions. [2020-12-22 11:08:40,986 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-12-22 11:08:40,986 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 11:08:40,986 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 11:08:40,986 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-12-22 11:08:40,987 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 11:08:40,987 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 11:08:40,987 INFO L82 PathProgramCache]: Analyzing trace with hash 1497460825, now seen corresponding path program 1 times [2020-12-22 11:08:40,987 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 11:08:40,988 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1604403283] [2020-12-22 11:08:40,989 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 11:08:41,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 11:08:41,120 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 11:08:41,120 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1604403283] [2020-12-22 11:08:41,121 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 11:08:41,121 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 11:08:41,121 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [195018421] [2020-12-22 11:08:41,122 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-22 11:08:41,122 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 11:08:41,123 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-22 11:08:41,123 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-22 11:08:41,123 INFO L87 Difference]: Start difference. First operand 158 states and 394 transitions. Second operand 5 states. [2020-12-22 11:08:41,181 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 11:08:41,182 INFO L93 Difference]: Finished difference Result 188 states and 459 transitions. [2020-12-22 11:08:41,183 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-12-22 11:08:41,183 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 13 [2020-12-22 11:08:41,183 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 11:08:41,186 INFO L225 Difference]: With dead ends: 188 [2020-12-22 11:08:41,186 INFO L226 Difference]: Without dead ends: 80 [2020-12-22 11:08:41,188 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-12-22 11:08:41,189 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80 states. [2020-12-22 11:08:41,195 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80 to 80. [2020-12-22 11:08:41,195 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 80 states. [2020-12-22 11:08:41,196 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 176 transitions. [2020-12-22 11:08:41,196 INFO L78 Accepts]: Start accepts. Automaton has 80 states and 176 transitions. Word has length 13 [2020-12-22 11:08:41,197 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 11:08:41,197 INFO L481 AbstractCegarLoop]: Abstraction has 80 states and 176 transitions. [2020-12-22 11:08:41,197 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-22 11:08:41,197 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 176 transitions. [2020-12-22 11:08:41,198 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-12-22 11:08:41,198 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 11:08:41,198 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 11:08:41,198 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-12-22 11:08:41,199 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 11:08:41,200 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 11:08:41,200 INFO L82 PathProgramCache]: Analyzing trace with hash -2064800307, now seen corresponding path program 1 times [2020-12-22 11:08:41,200 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 11:08:41,201 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [6299044] [2020-12-22 11:08:41,201 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 11:08:41,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 11:08:41,299 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 11:08:41,299 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [6299044] [2020-12-22 11:08:41,300 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 11:08:41,300 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 11:08:41,300 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1622619662] [2020-12-22 11:08:41,301 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-22 11:08:41,301 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 11:08:41,312 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-22 11:08:41,313 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-22 11:08:41,314 INFO L87 Difference]: Start difference. First operand 80 states and 176 transitions. Second operand 4 states. [2020-12-22 11:08:41,349 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 11:08:41,349 INFO L93 Difference]: Finished difference Result 91 states and 181 transitions. [2020-12-22 11:08:41,350 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-22 11:08:41,350 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 14 [2020-12-22 11:08:41,350 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 11:08:41,351 INFO L225 Difference]: With dead ends: 91 [2020-12-22 11:08:41,351 INFO L226 Difference]: Without dead ends: 69 [2020-12-22 11:08:41,351 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-12-22 11:08:41,352 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69 states. [2020-12-22 11:08:41,353 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69 to 69. [2020-12-22 11:08:41,353 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 69 states. [2020-12-22 11:08:41,354 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 69 states and 138 transitions. [2020-12-22 11:08:41,354 INFO L78 Accepts]: Start accepts. Automaton has 69 states and 138 transitions. Word has length 14 [2020-12-22 11:08:41,354 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 11:08:41,354 INFO L481 AbstractCegarLoop]: Abstraction has 69 states and 138 transitions. [2020-12-22 11:08:41,354 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-22 11:08:41,355 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 138 transitions. [2020-12-22 11:08:41,355 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-12-22 11:08:41,355 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 11:08:41,355 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 11:08:41,355 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-12-22 11:08:41,356 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 11:08:41,356 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 11:08:41,356 INFO L82 PathProgramCache]: Analyzing trace with hash 182443752, now seen corresponding path program 1 times [2020-12-22 11:08:41,356 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 11:08:41,357 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1190495992] [2020-12-22 11:08:41,357 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 11:08:41,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 11:08:41,409 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 11:08:41,410 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1190495992] [2020-12-22 11:08:41,410 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 11:08:41,410 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-22 11:08:41,410 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1834716211] [2020-12-22 11:08:41,411 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-22 11:08:41,411 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 11:08:41,411 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-22 11:08:41,412 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-12-22 11:08:41,412 INFO L87 Difference]: Start difference. First operand 69 states and 138 transitions. Second operand 5 states. [2020-12-22 11:08:41,451 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 11:08:41,452 INFO L93 Difference]: Finished difference Result 65 states and 113 transitions. [2020-12-22 11:08:41,452 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-12-22 11:08:41,452 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 15 [2020-12-22 11:08:41,453 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 11:08:41,453 INFO L225 Difference]: With dead ends: 65 [2020-12-22 11:08:41,453 INFO L226 Difference]: Without dead ends: 50 [2020-12-22 11:08:41,454 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-12-22 11:08:41,454 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2020-12-22 11:08:41,456 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 50. [2020-12-22 11:08:41,456 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 50 states. [2020-12-22 11:08:41,456 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 83 transitions. [2020-12-22 11:08:41,456 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 83 transitions. Word has length 15 [2020-12-22 11:08:41,457 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 11:08:41,457 INFO L481 AbstractCegarLoop]: Abstraction has 50 states and 83 transitions. [2020-12-22 11:08:41,457 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-22 11:08:41,457 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 83 transitions. [2020-12-22 11:08:41,457 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-12-22 11:08:41,457 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 11:08:41,458 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 11:08:41,458 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-12-22 11:08:41,458 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 11:08:41,458 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 11:08:41,458 INFO L82 PathProgramCache]: Analyzing trace with hash 1015325315, now seen corresponding path program 1 times [2020-12-22 11:08:41,459 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 11:08:41,459 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1104539950] [2020-12-22 11:08:41,459 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 11:08:41,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 11:08:41,517 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 11:08:41,517 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1104539950] [2020-12-22 11:08:41,518 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 11:08:41,518 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-22 11:08:41,518 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1909494392] [2020-12-22 11:08:41,518 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-22 11:08:41,519 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 11:08:41,519 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-22 11:08:41,519 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-12-22 11:08:41,519 INFO L87 Difference]: Start difference. First operand 50 states and 83 transitions. Second operand 6 states. [2020-12-22 11:08:41,569 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 11:08:41,569 INFO L93 Difference]: Finished difference Result 43 states and 67 transitions. [2020-12-22 11:08:41,570 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-12-22 11:08:41,570 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 16 [2020-12-22 11:08:41,570 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 11:08:41,571 INFO L225 Difference]: With dead ends: 43 [2020-12-22 11:08:41,571 INFO L226 Difference]: Without dead ends: 37 [2020-12-22 11:08:41,571 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2020-12-22 11:08:41,572 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2020-12-22 11:08:41,572 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 37. [2020-12-22 11:08:41,573 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37 states. [2020-12-22 11:08:41,573 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 57 transitions. [2020-12-22 11:08:41,573 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 57 transitions. Word has length 16 [2020-12-22 11:08:41,573 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 11:08:41,573 INFO L481 AbstractCegarLoop]: Abstraction has 37 states and 57 transitions. [2020-12-22 11:08:41,574 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-12-22 11:08:41,574 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 57 transitions. [2020-12-22 11:08:41,574 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-12-22 11:08:41,574 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 11:08:41,574 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 11:08:41,575 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-12-22 11:08:41,575 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 11:08:41,575 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 11:08:41,575 INFO L82 PathProgramCache]: Analyzing trace with hash 719368643, now seen corresponding path program 1 times [2020-12-22 11:08:41,576 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 11:08:41,576 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [51628402] [2020-12-22 11:08:41,576 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 11:08:41,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 11:08:41,671 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 11:08:41,671 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [51628402] [2020-12-22 11:08:41,672 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 11:08:41,672 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-22 11:08:41,672 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1132004296] [2020-12-22 11:08:41,672 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-22 11:08:41,673 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 11:08:41,673 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-22 11:08:41,673 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-22 11:08:41,674 INFO L87 Difference]: Start difference. First operand 37 states and 57 transitions. Second operand 5 states. [2020-12-22 11:08:41,750 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 11:08:41,751 INFO L93 Difference]: Finished difference Result 36 states and 56 transitions. [2020-12-22 11:08:41,751 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-12-22 11:08:41,751 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 18 [2020-12-22 11:08:41,751 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 11:08:41,751 INFO L225 Difference]: With dead ends: 36 [2020-12-22 11:08:41,752 INFO L226 Difference]: Without dead ends: 0 [2020-12-22 11:08:41,752 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-12-22 11:08:41,752 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-12-22 11:08:41,753 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-12-22 11:08:41,753 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-12-22 11:08:41,753 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-12-22 11:08:41,753 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 18 [2020-12-22 11:08:41,753 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 11:08:41,753 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-12-22 11:08:41,753 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-22 11:08:41,754 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-12-22 11:08:41,754 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-12-22 11:08:41,754 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-12-22 11:08:41,758 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.12 11:08:41 BasicIcfg [2020-12-22 11:08:41,758 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-12-22 11:08:41,759 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-22 11:08:41,759 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-22 11:08:41,759 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-22 11:08:41,760 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 11:08:35" (3/4) ... [2020-12-22 11:08:41,766 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-12-22 11:08:41,774 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2020-12-22 11:08:41,774 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2020-12-22 11:08:41,774 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P2 [2020-12-22 11:08:41,782 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 14 nodes and edges [2020-12-22 11:08:41,783 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2020-12-22 11:08:41,783 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-12-22 11:08:41,783 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-12-22 11:08:41,857 INFO L141 WitnessManager]: Wrote witness to /storage/repos/svcomp/c/pthread-wmm/safe014_pso.oepc.i-witness.graphml [2020-12-22 11:08:41,857 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-22 11:08:41,862 INFO L168 Benchmark]: Toolchain (without parser) took 7238.56 ms. Allocated memory was 151.0 MB in the beginning and 235.9 MB in the end (delta: 84.9 MB). Free memory was 125.4 MB in the beginning and 196.5 MB in the end (delta: -71.1 MB). Peak memory consumption was 14.3 MB. Max. memory is 8.0 GB. [2020-12-22 11:08:41,863 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 151.0 MB. Free memory is still 124.3 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-12-22 11:08:41,863 INFO L168 Benchmark]: CACSL2BoogieTranslator took 670.77 ms. Allocated memory is still 151.0 MB. Free memory was 125.4 MB in the beginning and 94.4 MB in the end (delta: 30.9 MB). Peak memory consumption was 30.4 MB. Max. memory is 8.0 GB. [2020-12-22 11:08:41,866 INFO L168 Benchmark]: Boogie Procedure Inliner took 80.65 ms. Allocated memory is still 151.0 MB. Free memory was 94.4 MB in the beginning and 92.6 MB in the end (delta: 1.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2020-12-22 11:08:41,866 INFO L168 Benchmark]: Boogie Preprocessor took 29.90 ms. Allocated memory is still 151.0 MB. Free memory was 92.3 MB in the beginning and 91.0 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2020-12-22 11:08:41,872 INFO L168 Benchmark]: RCFGBuilder took 519.09 ms. Allocated memory is still 151.0 MB. Free memory was 91.0 MB in the beginning and 123.8 MB in the end (delta: -32.8 MB). Peak memory consumption was 14.7 MB. Max. memory is 8.0 GB. [2020-12-22 11:08:41,873 INFO L168 Benchmark]: TraceAbstraction took 5819.65 ms. Allocated memory was 151.0 MB in the beginning and 235.9 MB in the end (delta: 84.9 MB). Free memory was 123.3 MB in the beginning and 199.1 MB in the end (delta: -75.8 MB). Peak memory consumption was 10.2 MB. Max. memory is 8.0 GB. [2020-12-22 11:08:41,873 INFO L168 Benchmark]: Witness Printer took 101.94 ms. Allocated memory is still 235.9 MB. Free memory was 199.1 MB in the beginning and 196.5 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2020-12-22 11:08:41,882 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 151.0 MB. Free memory is still 124.3 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 670.77 ms. Allocated memory is still 151.0 MB. Free memory was 125.4 MB in the beginning and 94.4 MB in the end (delta: 30.9 MB). Peak memory consumption was 30.4 MB. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 80.65 ms. Allocated memory is still 151.0 MB. Free memory was 94.4 MB in the beginning and 92.6 MB in the end (delta: 1.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 29.90 ms. Allocated memory is still 151.0 MB. Free memory was 92.3 MB in the beginning and 91.0 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 519.09 ms. Allocated memory is still 151.0 MB. Free memory was 91.0 MB in the beginning and 123.8 MB in the end (delta: -32.8 MB). Peak memory consumption was 14.7 MB. Max. memory is 8.0 GB. * TraceAbstraction took 5819.65 ms. Allocated memory was 151.0 MB in the beginning and 235.9 MB in the end (delta: 84.9 MB). Free memory was 123.3 MB in the beginning and 199.1 MB in the end (delta: -75.8 MB). Peak memory consumption was 10.2 MB. Max. memory is 8.0 GB. * Witness Printer took 101.94 ms. Allocated memory is still 235.9 MB. Free memory was 199.1 MB in the beginning and 196.5 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 734 VarBasedMoverChecksPositive, 36 VarBasedMoverChecksNegative, 6 SemBasedMoverChecksPositive, 30 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.3s, 58 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 3.5s, 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: 10, TraceHistogramMax: 1, AutomataDifference: 0.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 3.5s, HoareTripleCheckerStatistics: 215 SDtfs, 211 SDslu, 316 SDs, 0 SdLazy, 160 SolverSat, 24 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 48 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.4s 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, 10 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 126 NumberOfCodeBlocks, 126 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 116 ConstructedInterpolants, 0 QuantifiedInterpolants, 5825 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 10 InterpolantComputations, 10 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...