/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/pthread-wmm/safe036_power.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-7bb8cbd [2020-10-15 18:40:18,803 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-15 18:40:18,806 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-15 18:40:18,848 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-15 18:40:18,848 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-15 18:40:18,856 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-15 18:40:18,859 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-15 18:40:18,862 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-15 18:40:18,864 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-15 18:40:18,867 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-15 18:40:18,868 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-15 18:40:18,868 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-15 18:40:18,869 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-15 18:40:18,871 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-15 18:40:18,873 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-15 18:40:18,874 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-15 18:40:18,876 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-15 18:40:18,876 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-15 18:40:18,878 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-15 18:40:18,887 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-15 18:40:18,889 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-15 18:40:18,890 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-15 18:40:18,890 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-15 18:40:18,891 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-15 18:40:18,902 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-10-15 18:40:18,908 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-15 18:40:18,909 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-15 18:40:18,911 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-15 18:40:18,912 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-15 18:40:18,913 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-15 18:40:18,913 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-15 18:40:18,913 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-15 18:40:18,914 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-15 18:40:18,914 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-15 18:40:18,917 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-15 18:40:18,917 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-15 18:40:18,918 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-15 18:40:18,958 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-15 18:40:18,959 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-15 18:40:18,960 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-15 18:40:18,960 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-15 18:40:18,960 INFO L138 SettingsManager]: * Use SBE=true [2020-10-15 18:40:18,960 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-15 18:40:18,961 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-15 18:40:18,961 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-15 18:40:18,961 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-15 18:40:18,961 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-15 18:40:18,961 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-15 18:40:18,962 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-15 18:40:18,962 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-15 18:40:18,963 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-15 18:40:18,963 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-15 18:40:18,963 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-15 18:40:18,964 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-15 18:40:18,964 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-15 18:40:18,965 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-15 18:40:18,965 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-15 18:40:18,965 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-15 18:40:18,966 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-15 18:40:18,966 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-15 18:40:18,966 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-15 18:40:18,966 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-15 18:40:18,966 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-15 18:40:18,967 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-15 18:40:18,967 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-15 18:40:18,971 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-15 18:40:18,971 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-10-15 18:40:19,235 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-15 18:40:19,246 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-15 18:40:19,250 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-15 18:40:19,251 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-15 18:40:19,251 INFO L275 PluginConnector]: CDTParser initialized [2020-10-15 18:40:19,252 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe036_power.opt.i [2020-10-15 18:40:19,322 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0411d3780/7c094bb304784bfaa1b174d0696eba33/FLAG3495de95b [2020-10-15 18:40:19,807 INFO L306 CDTParser]: Found 1 translation units. [2020-10-15 18:40:19,807 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe036_power.opt.i [2020-10-15 18:40:19,825 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0411d3780/7c094bb304784bfaa1b174d0696eba33/FLAG3495de95b [2020-10-15 18:40:20,123 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0411d3780/7c094bb304784bfaa1b174d0696eba33 [2020-10-15 18:40:20,131 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-15 18:40:20,132 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-10-15 18:40:20,134 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-15 18:40:20,134 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-15 18:40:20,136 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-15 18:40:20,137 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 06:40:20" (1/1) ... [2020-10-15 18:40:20,139 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7305cb6d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 06:40:20, skipping insertion in model container [2020-10-15 18:40:20,139 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 06:40:20" (1/1) ... [2020-10-15 18:40:20,146 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-15 18:40:20,192 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-15 18:40:20,582 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-15 18:40:20,598 INFO L203 MainTranslator]: Completed pre-run [2020-10-15 18:40:20,735 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-15 18:40:20,809 INFO L208 MainTranslator]: Completed translation [2020-10-15 18:40:20,810 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 06:40:20 WrapperNode [2020-10-15 18:40:20,810 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-15 18:40:20,812 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-15 18:40:20,813 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-15 18:40:20,813 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-15 18:40:20,821 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 06:40:20" (1/1) ... [2020-10-15 18:40:20,838 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 06:40:20" (1/1) ... [2020-10-15 18:40:20,859 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-15 18:40:20,860 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-15 18:40:20,860 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-15 18:40:20,860 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-15 18:40:20,869 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 06:40:20" (1/1) ... [2020-10-15 18:40:20,869 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 06:40:20" (1/1) ... [2020-10-15 18:40:20,872 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 06:40:20" (1/1) ... [2020-10-15 18:40:20,873 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 06:40:20" (1/1) ... [2020-10-15 18:40:20,878 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 06:40:20" (1/1) ... [2020-10-15 18:40:20,880 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 06:40:20" (1/1) ... [2020-10-15 18:40:20,882 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 06:40:20" (1/1) ... [2020-10-15 18:40:20,885 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-15 18:40:20,885 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-15 18:40:20,886 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-15 18:40:20,886 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-15 18:40:20,887 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 06:40:20" (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 [2020-10-15 18:40:20,943 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-15 18:40:20,943 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-10-15 18:40:20,943 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-15 18:40:20,944 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-15 18:40:20,944 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-10-15 18:40:20,944 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-10-15 18:40:20,944 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-10-15 18:40:20,944 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-10-15 18:40:20,944 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-10-15 18:40:20,945 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-15 18:40:20,945 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-15 18:40:20,946 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-10-15 18:40:21,231 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-15 18:40:21,231 INFO L298 CfgBuilder]: Removed 8 assume(true) statements. [2020-10-15 18:40:21,234 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 06:40:21 BoogieIcfgContainer [2020-10-15 18:40:21,234 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-15 18:40:21,235 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-15 18:40:21,236 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-15 18:40:21,239 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-15 18:40:21,239 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 06:40:20" (1/3) ... [2020-10-15 18:40:21,240 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6374c06 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 06:40:21, skipping insertion in model container [2020-10-15 18:40:21,240 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 06:40:20" (2/3) ... [2020-10-15 18:40:21,240 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6374c06 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 06:40:21, skipping insertion in model container [2020-10-15 18:40:21,240 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 06:40:21" (3/3) ... [2020-10-15 18:40:21,242 INFO L111 eAbstractionObserver]: Analyzing ICFG safe036_power.opt.i [2020-10-15 18:40:21,254 WARN L153 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-10-15 18:40:21,254 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-15 18:40:21,261 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-15 18:40:21,262 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-10-15 18:40:21,289 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:40:21,290 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:40:21,290 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:40:21,290 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:40:21,291 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:40:21,291 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:40:21,292 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:40:21,292 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:40:21,292 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:40:21,292 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:40:21,293 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:40:21,293 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:40:21,297 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:40:21,297 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:40:21,298 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:40:21,298 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:40:21,303 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:40:21,303 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:40:21,304 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:40:21,304 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:40:21,320 INFO L253 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2020-10-15 18:40:21,336 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-15 18:40:21,336 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-15 18:40:21,337 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-15 18:40:21,337 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-15 18:40:21,337 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-15 18:40:21,337 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-15 18:40:21,337 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-15 18:40:21,337 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-15 18:40:21,348 INFO L129 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2020-10-15 18:40:21,351 INFO L144 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 61 places, 56 transitions, 122 flow [2020-10-15 18:40:21,354 INFO L111 LiptonReduction]: Starting Lipton reduction on Petri net that has 61 places, 56 transitions, 122 flow [2020-10-15 18:40:21,355 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 61 places, 56 transitions, 122 flow [2020-10-15 18:40:21,393 INFO L129 PetriNetUnfolder]: 2/54 cut-off events. [2020-10-15 18:40:21,394 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-10-15 18:40:21,398 INFO L80 FinitePrefix]: Finished finitePrefix Result has 61 conditions, 54 events. 2/54 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 34 event pairs, 0 based on Foata normal form. 0/51 useless extension candidates. Maximal degree in co-relation 41. Up to 2 conditions per place. [2020-10-15 18:40:21,400 INFO L117 LiptonReduction]: Number of co-enabled transitions 672 [2020-10-15 18:40:22,655 INFO L132 LiptonReduction]: Checked pairs total: 1338 [2020-10-15 18:40:22,655 INFO L134 LiptonReduction]: Total number of compositions: 51 [2020-10-15 18:40:22,662 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 22 places, 15 transitions, 40 flow [2020-10-15 18:40:22,674 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 74 states. [2020-10-15 18:40:22,676 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states. [2020-10-15 18:40:22,682 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2020-10-15 18:40:22,683 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 18:40:22,684 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2020-10-15 18:40:22,684 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 18:40:22,689 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 18:40:22,690 INFO L82 PathProgramCache]: Analyzing trace with hash 1873752150, now seen corresponding path program 1 times [2020-10-15 18:40:22,699 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 18:40:22,700 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [936523692] [2020-10-15 18:40:22,700 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 18:40:22,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 18:40:22,912 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 18:40:22,913 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [936523692] [2020-10-15 18:40:22,913 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 18:40:22,914 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-15 18:40:22,914 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [920755369] [2020-10-15 18:40:22,918 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-15 18:40:22,919 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 18:40:22,933 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-15 18:40:22,934 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-15 18:40:22,936 INFO L87 Difference]: Start difference. First operand 74 states. Second operand 4 states. [2020-10-15 18:40:22,991 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 18:40:22,992 INFO L93 Difference]: Finished difference Result 63 states and 112 transitions. [2020-10-15 18:40:22,992 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-15 18:40:22,994 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 6 [2020-10-15 18:40:22,994 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 18:40:23,003 INFO L225 Difference]: With dead ends: 63 [2020-10-15 18:40:23,004 INFO L226 Difference]: Without dead ends: 40 [2020-10-15 18:40:23,005 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 [2020-10-15 18:40:23,023 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2020-10-15 18:40:23,038 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 40. [2020-10-15 18:40:23,040 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 40 states. [2020-10-15 18:40:23,041 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 66 transitions. [2020-10-15 18:40:23,042 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 66 transitions. Word has length 6 [2020-10-15 18:40:23,043 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 18:40:23,043 INFO L481 AbstractCegarLoop]: Abstraction has 40 states and 66 transitions. [2020-10-15 18:40:23,043 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-15 18:40:23,043 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 66 transitions. [2020-10-15 18:40:23,044 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-10-15 18:40:23,044 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 18:40:23,044 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 18:40:23,044 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-15 18:40:23,045 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 18:40:23,045 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 18:40:23,045 INFO L82 PathProgramCache]: Analyzing trace with hash -771561330, now seen corresponding path program 1 times [2020-10-15 18:40:23,045 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 18:40:23,046 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1002695346] [2020-10-15 18:40:23,046 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 18:40:23,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 18:40:23,132 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 18:40:23,133 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1002695346] [2020-10-15 18:40:23,134 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 18:40:23,134 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-15 18:40:23,134 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1577003893] [2020-10-15 18:40:23,136 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-15 18:40:23,136 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 18:40:23,136 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-15 18:40:23,137 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-15 18:40:23,137 INFO L87 Difference]: Start difference. First operand 40 states and 66 transitions. Second operand 5 states. [2020-10-15 18:40:23,186 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 18:40:23,187 INFO L93 Difference]: Finished difference Result 35 states and 54 transitions. [2020-10-15 18:40:23,187 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-15 18:40:23,187 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 9 [2020-10-15 18:40:23,188 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 18:40:23,188 INFO L225 Difference]: With dead ends: 35 [2020-10-15 18:40:23,188 INFO L226 Difference]: Without dead ends: 28 [2020-10-15 18:40:23,189 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-10-15 18:40:23,190 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2020-10-15 18:40:23,195 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 28. [2020-10-15 18:40:23,195 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2020-10-15 18:40:23,196 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 42 transitions. [2020-10-15 18:40:23,197 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 42 transitions. Word has length 9 [2020-10-15 18:40:23,197 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 18:40:23,197 INFO L481 AbstractCegarLoop]: Abstraction has 28 states and 42 transitions. [2020-10-15 18:40:23,198 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-15 18:40:23,198 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 42 transitions. [2020-10-15 18:40:23,199 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-10-15 18:40:23,199 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 18:40:23,199 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 18:40:23,199 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-15 18:40:23,199 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 18:40:23,200 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 18:40:23,200 INFO L82 PathProgramCache]: Analyzing trace with hash 1059449318, now seen corresponding path program 1 times [2020-10-15 18:40:23,200 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 18:40:23,200 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [846520554] [2020-10-15 18:40:23,200 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 18:40:23,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 18:40:23,299 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 18:40:23,299 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [846520554] [2020-10-15 18:40:23,300 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 18:40:23,300 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-15 18:40:23,300 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [787338209] [2020-10-15 18:40:23,300 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-15 18:40:23,301 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 18:40:23,301 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-15 18:40:23,301 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-15 18:40:23,301 INFO L87 Difference]: Start difference. First operand 28 states and 42 transitions. Second operand 4 states. [2020-10-15 18:40:23,317 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 18:40:23,317 INFO L93 Difference]: Finished difference Result 35 states and 50 transitions. [2020-10-15 18:40:23,318 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-15 18:40:23,318 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 12 [2020-10-15 18:40:23,318 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 18:40:23,319 INFO L225 Difference]: With dead ends: 35 [2020-10-15 18:40:23,319 INFO L226 Difference]: Without dead ends: 22 [2020-10-15 18:40:23,319 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 [2020-10-15 18:40:23,320 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2020-10-15 18:40:23,322 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 22. [2020-10-15 18:40:23,322 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2020-10-15 18:40:23,323 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 30 transitions. [2020-10-15 18:40:23,323 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 30 transitions. Word has length 12 [2020-10-15 18:40:23,323 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 18:40:23,323 INFO L481 AbstractCegarLoop]: Abstraction has 22 states and 30 transitions. [2020-10-15 18:40:23,323 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-15 18:40:23,323 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 30 transitions. [2020-10-15 18:40:23,324 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-10-15 18:40:23,324 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 18:40:23,324 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 18:40:23,324 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-15 18:40:23,325 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 18:40:23,325 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 18:40:23,325 INFO L82 PathProgramCache]: Analyzing trace with hash 1252547174, now seen corresponding path program 2 times [2020-10-15 18:40:23,325 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 18:40:23,325 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [180294146] [2020-10-15 18:40:23,326 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 18:40:23,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 18:40:23,366 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 18:40:23,367 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [180294146] [2020-10-15 18:40:23,367 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 18:40:23,367 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-15 18:40:23,367 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [912318958] [2020-10-15 18:40:23,368 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-15 18:40:23,368 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 18:40:23,368 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-15 18:40:23,369 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-15 18:40:23,369 INFO L87 Difference]: Start difference. First operand 22 states and 30 transitions. Second operand 4 states. [2020-10-15 18:40:23,380 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 18:40:23,380 INFO L93 Difference]: Finished difference Result 21 states and 29 transitions. [2020-10-15 18:40:23,380 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-15 18:40:23,380 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 12 [2020-10-15 18:40:23,381 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 18:40:23,381 INFO L225 Difference]: With dead ends: 21 [2020-10-15 18:40:23,381 INFO L226 Difference]: Without dead ends: 0 [2020-10-15 18:40:23,382 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 [2020-10-15 18:40:23,382 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-15 18:40:23,382 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-15 18:40:23,382 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-15 18:40:23,383 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-15 18:40:23,383 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 12 [2020-10-15 18:40:23,383 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 18:40:23,383 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-15 18:40:23,383 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-15 18:40:23,383 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-15 18:40:23,384 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-15 18:40:23,384 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-15 18:40:23,387 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.10 06:40:23 BasicIcfg [2020-10-15 18:40:23,388 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-15 18:40:23,390 INFO L168 Benchmark]: Toolchain (without parser) took 3256.99 ms. Allocated memory was 254.3 MB in the beginning and 361.2 MB in the end (delta: 107.0 MB). Free memory was 208.0 MB in the beginning and 175.5 MB in the end (delta: 32.4 MB). Peak memory consumption was 139.4 MB. Max. memory is 14.2 GB. [2020-10-15 18:40:23,391 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 254.3 MB. Free memory is still 230.7 MB. There was no memory consumed. Max. memory is 14.2 GB. [2020-10-15 18:40:23,392 INFO L168 Benchmark]: CACSL2BoogieTranslator took 677.79 ms. Allocated memory was 254.3 MB in the beginning and 324.0 MB in the end (delta: 69.7 MB). Free memory was 208.0 MB in the beginning and 279.1 MB in the end (delta: -71.1 MB). Peak memory consumption was 33.3 MB. Max. memory is 14.2 GB. [2020-10-15 18:40:23,393 INFO L168 Benchmark]: Boogie Procedure Inliner took 47.25 ms. Allocated memory is still 324.0 MB. Free memory was 279.1 MB in the beginning and 276.6 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 14.2 GB. [2020-10-15 18:40:23,393 INFO L168 Benchmark]: Boogie Preprocessor took 25.26 ms. Allocated memory is still 324.0 MB. Free memory is still 276.6 MB. There was no memory consumed. Max. memory is 14.2 GB. [2020-10-15 18:40:23,394 INFO L168 Benchmark]: RCFGBuilder took 348.72 ms. Allocated memory is still 324.0 MB. Free memory was 276.6 MB in the beginning and 254.7 MB in the end (delta: 21.8 MB). Peak memory consumption was 21.8 MB. Max. memory is 14.2 GB. [2020-10-15 18:40:23,395 INFO L168 Benchmark]: TraceAbstraction took 2152.32 ms. Allocated memory was 324.0 MB in the beginning and 361.2 MB in the end (delta: 37.2 MB). Free memory was 254.7 MB in the beginning and 175.5 MB in the end (delta: 79.2 MB). Peak memory consumption was 116.4 MB. Max. memory is 14.2 GB. [2020-10-15 18:40:23,399 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 254.3 MB. Free memory is still 230.7 MB. There was no memory consumed. Max. memory is 14.2 GB. * CACSL2BoogieTranslator took 677.79 ms. Allocated memory was 254.3 MB in the beginning and 324.0 MB in the end (delta: 69.7 MB). Free memory was 208.0 MB in the beginning and 279.1 MB in the end (delta: -71.1 MB). Peak memory consumption was 33.3 MB. Max. memory is 14.2 GB. * Boogie Procedure Inliner took 47.25 ms. Allocated memory is still 324.0 MB. Free memory was 279.1 MB in the beginning and 276.6 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 14.2 GB. * Boogie Preprocessor took 25.26 ms. Allocated memory is still 324.0 MB. Free memory is still 276.6 MB. There was no memory consumed. Max. memory is 14.2 GB. * RCFGBuilder took 348.72 ms. Allocated memory is still 324.0 MB. Free memory was 276.6 MB in the beginning and 254.7 MB in the end (delta: 21.8 MB). Peak memory consumption was 21.8 MB. Max. memory is 14.2 GB. * TraceAbstraction took 2152.32 ms. Allocated memory was 324.0 MB in the beginning and 361.2 MB in the end (delta: 37.2 MB). Free memory was 254.7 MB in the beginning and 175.5 MB in the end (delta: 79.2 MB). Peak memory consumption was 116.4 MB. Max. memory is 14.2 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 469 VarBasedMoverChecksPositive, 28 VarBasedMoverChecksNegative, 2 SemBasedMoverChecksPositive, 26 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.1s, 33 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 1.3s, 61 PlacesBefore, 22 PlacesAfterwards, 56 TransitionsBefore, 15 TransitionsAfterwards, 672 CoEnabledTransitionPairs, 5 FixpointIterations, 13 TrivialSequentialCompositions, 28 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 8 ConcurrentYvCompositions, 2 ChoiceCompositions, 51 TotalNumberOfCompositions, 1338 MoverChecksTotal - PositiveResult [Line: 7]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 55 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 2.0s, OverallIterations: 4, TraceHistogramMax: 1, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.3s, HoareTripleCheckerStatistics: 56 SDtfs, 47 SDslu, 68 SDs, 0 SdLazy, 43 SolverSat, 8 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=74occurred 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: 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 39 NumberOfCodeBlocks, 39 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 35 ConstructedInterpolants, 0 QuantifiedInterpolants, 817 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 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...