/usr/bin/java -Xmx8000000000 -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/automizer/mcr/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA.epf -i ../../../trunk/examples/svcomp/pthread-wmm/safe020_pso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-b09bf87 [2020-10-16 12:09:58,993 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-16 12:09:58,995 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-16 12:09:59,018 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-16 12:09:59,019 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-16 12:09:59,020 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-16 12:09:59,022 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-16 12:09:59,024 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-16 12:09:59,025 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-16 12:09:59,026 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-16 12:09:59,027 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-16 12:09:59,028 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-16 12:09:59,029 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-16 12:09:59,030 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-16 12:09:59,031 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-16 12:09:59,038 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-16 12:09:59,039 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-16 12:09:59,042 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-16 12:09:59,044 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-16 12:09:59,046 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-16 12:09:59,047 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-16 12:09:59,048 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-16 12:09:59,049 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-16 12:09:59,050 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-16 12:09:59,052 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-16 12:09:59,052 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-16 12:09:59,053 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-16 12:09:59,053 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-16 12:09:59,054 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-16 12:09:59,055 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-16 12:09:59,055 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-16 12:09:59,056 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-16 12:09:59,057 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-16 12:09:59,057 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-16 12:09:59,058 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-16 12:09:59,059 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-16 12:09:59,059 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-16 12:09:59,060 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-16 12:09:59,060 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-16 12:09:59,061 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-16 12:09:59,061 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-16 12:09:59,062 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/mcr/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA.epf [2020-10-16 12:09:59,085 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-16 12:09:59,085 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-16 12:09:59,086 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-16 12:09:59,087 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-16 12:09:59,087 INFO L138 SettingsManager]: * Use SBE=true [2020-10-16 12:09:59,087 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-16 12:09:59,087 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-16 12:09:59,087 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-16 12:09:59,088 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-16 12:09:59,088 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-16 12:09:59,088 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-16 12:09:59,088 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-16 12:09:59,088 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-16 12:09:59,089 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-16 12:09:59,089 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-16 12:09:59,089 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-16 12:09:59,089 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-16 12:09:59,089 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-16 12:09:59,090 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-16 12:09:59,090 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-16 12:09:59,090 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-16 12:09:59,090 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-16 12:09:59,090 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-16 12:09:59,091 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_NestedInterpolation [2020-10-16 12:09:59,091 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-16 12:09:59,091 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-16 12:09:59,091 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-16 12:09:59,091 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=VARIABLE_BASED_MOVER_CHECK [2020-10-16 12:09:59,092 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-16 12:09:59,394 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-16 12:09:59,409 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-16 12:09:59,414 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-16 12:09:59,417 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-16 12:09:59,419 INFO L275 PluginConnector]: CDTParser initialized [2020-10-16 12:09:59,420 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe020_pso.oepc.i [2020-10-16 12:09:59,493 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/d2ba1e031/6550408992f44fb681249b188756feb1/FLAG795971cd0 [2020-10-16 12:10:00,054 INFO L306 CDTParser]: Found 1 translation units. [2020-10-16 12:10:00,055 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/pthread-wmm/safe020_pso.oepc.i [2020-10-16 12:10:00,078 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/d2ba1e031/6550408992f44fb681249b188756feb1/FLAG795971cd0 [2020-10-16 12:10:00,334 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/d2ba1e031/6550408992f44fb681249b188756feb1 [2020-10-16 12:10:00,343 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-16 12:10:00,345 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-10-16 12:10:00,346 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-16 12:10:00,346 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-16 12:10:00,350 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-16 12:10:00,351 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 12:10:00" (1/1) ... [2020-10-16 12:10:00,354 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4c2e7388 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:10:00, skipping insertion in model container [2020-10-16 12:10:00,354 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 12:10:00" (1/1) ... [2020-10-16 12:10:00,362 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-16 12:10:00,409 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-16 12:10:00,896 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-16 12:10:00,911 INFO L203 MainTranslator]: Completed pre-run [2020-10-16 12:10:00,988 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-16 12:10:01,072 INFO L208 MainTranslator]: Completed translation [2020-10-16 12:10:01,072 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:10:01 WrapperNode [2020-10-16 12:10:01,073 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-16 12:10:01,073 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-16 12:10:01,074 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-16 12:10:01,074 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-16 12:10:01,083 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:10:01" (1/1) ... [2020-10-16 12:10:01,101 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:10:01" (1/1) ... [2020-10-16 12:10:01,123 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-16 12:10:01,124 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-16 12:10:01,124 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-16 12:10:01,124 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-16 12:10:01,132 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:10:01" (1/1) ... [2020-10-16 12:10:01,132 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:10:01" (1/1) ... [2020-10-16 12:10:01,136 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:10:01" (1/1) ... [2020-10-16 12:10:01,137 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:10:01" (1/1) ... [2020-10-16 12:10:01,144 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:10:01" (1/1) ... [2020-10-16 12:10:01,146 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:10:01" (1/1) ... [2020-10-16 12:10:01,148 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:10:01" (1/1) ... [2020-10-16 12:10:01,152 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-16 12:10:01,152 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-16 12:10:01,152 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-16 12:10:01,152 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-16 12:10:01,153 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:10:01" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/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 [2020-10-16 12:10:01,217 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-16 12:10:01,217 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-10-16 12:10:01,217 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-16 12:10:01,217 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-16 12:10:01,217 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-10-16 12:10:01,218 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-10-16 12:10:01,218 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-10-16 12:10:01,218 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-10-16 12:10:01,219 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-10-16 12:10:01,219 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-10-16 12:10:01,220 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-10-16 12:10:01,220 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-16 12:10:01,221 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-16 12:10:01,223 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-10-16 12:10:01,609 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-16 12:10:01,609 INFO L298 CfgBuilder]: Removed 8 assume(true) statements. [2020-10-16 12:10:01,612 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 12:10:01 BoogieIcfgContainer [2020-10-16 12:10:01,612 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-16 12:10:01,613 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-16 12:10:01,614 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-16 12:10:01,617 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-16 12:10:01,617 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.10 12:10:00" (1/3) ... [2020-10-16 12:10:01,618 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6e4b6a2a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 12:10:01, skipping insertion in model container [2020-10-16 12:10:01,619 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:10:01" (2/3) ... [2020-10-16 12:10:01,620 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6e4b6a2a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 12:10:01, skipping insertion in model container [2020-10-16 12:10:01,620 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 12:10:01" (3/3) ... [2020-10-16 12:10:01,622 INFO L111 eAbstractionObserver]: Analyzing ICFG safe020_pso.oepc.i [2020-10-16 12:10:01,633 WARN L153 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-10-16 12:10:01,633 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-16 12:10:01,641 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-16 12:10:01,642 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-10-16 12:10:01,669 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:10:01,670 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:10:01,670 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:10:01,670 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:10:01,671 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:10:01,671 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:10:01,672 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:10:01,672 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:10:01,672 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:10:01,673 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:10:01,673 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:10:01,673 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:10:01,674 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:10:01,674 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:10:01,674 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:10:01,675 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:10:01,675 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:10:01,675 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:10:01,679 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:10:01,680 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:10:01,680 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:10:01,680 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:10:01,687 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:10:01,687 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:10:01,688 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:10:01,688 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:10:01,691 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:10:01,691 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:10:01,691 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:10:01,691 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:10:01,693 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2020-10-16 12:10:01,708 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-10-16 12:10:01,729 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-16 12:10:01,729 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-16 12:10:01,729 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-16 12:10:01,730 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-16 12:10:01,730 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-16 12:10:01,730 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-16 12:10:01,730 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-16 12:10:01,730 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-16 12:10:01,743 INFO L137 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2020-10-16 12:10:01,744 INFO L144 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 76 places, 68 transitions, 151 flow [2020-10-16 12:10:01,747 INFO L111 LiptonReduction]: Starting Lipton reduction on Petri net that has 76 places, 68 transitions, 151 flow [2020-10-16 12:10:01,749 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 76 places, 68 transitions, 151 flow [2020-10-16 12:10:01,800 INFO L129 PetriNetUnfolder]: 2/65 cut-off events. [2020-10-16 12:10:01,800 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-10-16 12:10:01,804 INFO L80 FinitePrefix]: Finished finitePrefix Result has 75 conditions, 65 events. 2/65 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 45 event pairs, 0 based on Foata normal form. 0/62 useless extension candidates. Maximal degree in co-relation 54. Up to 2 conditions per place. [2020-10-16 12:10:01,807 INFO L117 LiptonReduction]: Number of co-enabled transitions 1178 [2020-10-16 12:10:03,009 INFO L132 LiptonReduction]: Checked pairs total: 2372 [2020-10-16 12:10:03,010 INFO L134 LiptonReduction]: Total number of compositions: 57 [2020-10-16 12:10:03,017 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 31 places, 22 transitions, 59 flow [2020-10-16 12:10:03,044 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 274 states. [2020-10-16 12:10:03,046 INFO L276 IsEmpty]: Start isEmpty. Operand 274 states. [2020-10-16 12:10:03,055 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-10-16 12:10:03,055 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 12:10:03,056 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 12:10:03,057 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 12:10:03,062 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 12:10:03,063 INFO L82 PathProgramCache]: Analyzing trace with hash 278619754, now seen corresponding path program 1 times [2020-10-16 12:10:03,086 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 12:10:03,086 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [22971374] [2020-10-16 12:10:03,087 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 12:10:03,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 12:10:03,264 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 12:10:03,265 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [22971374] [2020-10-16 12:10:03,266 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 12:10:03,266 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-16 12:10:03,267 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1839559260] [2020-10-16 12:10:03,279 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-10-16 12:10:03,279 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 12:10:03,294 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-10-16 12:10:03,294 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-10-16 12:10:03,297 INFO L87 Difference]: Start difference. First operand 274 states. Second operand 2 states. [2020-10-16 12:10:03,327 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 12:10:03,328 INFO L93 Difference]: Finished difference Result 274 states and 786 transitions. [2020-10-16 12:10:03,328 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-10-16 12:10:03,329 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 8 [2020-10-16 12:10:03,330 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 12:10:03,346 INFO L225 Difference]: With dead ends: 274 [2020-10-16 12:10:03,347 INFO L226 Difference]: Without dead ends: 226 [2020-10-16 12:10:03,348 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 [2020-10-16 12:10:03,373 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 226 states. [2020-10-16 12:10:03,411 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 226 to 226. [2020-10-16 12:10:03,413 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 226 states. [2020-10-16 12:10:03,418 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 226 states to 226 states and 634 transitions. [2020-10-16 12:10:03,419 INFO L78 Accepts]: Start accepts. Automaton has 226 states and 634 transitions. Word has length 8 [2020-10-16 12:10:03,421 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 12:10:03,421 INFO L481 AbstractCegarLoop]: Abstraction has 226 states and 634 transitions. [2020-10-16 12:10:03,421 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-10-16 12:10:03,421 INFO L276 IsEmpty]: Start isEmpty. Operand 226 states and 634 transitions. [2020-10-16 12:10:03,423 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-10-16 12:10:03,423 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 12:10:03,423 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 12:10:03,423 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-16 12:10:03,424 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 12:10:03,424 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 12:10:03,424 INFO L82 PathProgramCache]: Analyzing trace with hash 47263938, now seen corresponding path program 1 times [2020-10-16 12:10:03,424 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 12:10:03,425 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [589522556] [2020-10-16 12:10:03,425 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 12:10:03,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 12:10:03,569 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 12:10:03,569 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [589522556] [2020-10-16 12:10:03,569 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 12:10:03,570 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-16 12:10:03,570 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [882901061] [2020-10-16 12:10:03,571 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-16 12:10:03,572 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 12:10:03,572 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-16 12:10:03,572 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-16 12:10:03,573 INFO L87 Difference]: Start difference. First operand 226 states and 634 transitions. Second operand 4 states. [2020-10-16 12:10:03,607 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 12:10:03,608 INFO L93 Difference]: Finished difference Result 262 states and 700 transitions. [2020-10-16 12:10:03,608 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-16 12:10:03,608 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 9 [2020-10-16 12:10:03,609 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 12:10:03,611 INFO L225 Difference]: With dead ends: 262 [2020-10-16 12:10:03,611 INFO L226 Difference]: Without dead ends: 214 [2020-10-16 12:10:03,612 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 [2020-10-16 12:10:03,617 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 214 states. [2020-10-16 12:10:03,630 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 214 to 214. [2020-10-16 12:10:03,631 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 214 states. [2020-10-16 12:10:03,633 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 214 states to 214 states and 590 transitions. [2020-10-16 12:10:03,633 INFO L78 Accepts]: Start accepts. Automaton has 214 states and 590 transitions. Word has length 9 [2020-10-16 12:10:03,633 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 12:10:03,634 INFO L481 AbstractCegarLoop]: Abstraction has 214 states and 590 transitions. [2020-10-16 12:10:03,634 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-16 12:10:03,634 INFO L276 IsEmpty]: Start isEmpty. Operand 214 states and 590 transitions. [2020-10-16 12:10:03,635 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-10-16 12:10:03,635 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 12:10:03,636 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 12:10:03,636 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-16 12:10:03,636 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 12:10:03,636 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 12:10:03,637 INFO L82 PathProgramCache]: Analyzing trace with hash 984763373, now seen corresponding path program 1 times [2020-10-16 12:10:03,637 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 12:10:03,637 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [143474722] [2020-10-16 12:10:03,637 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 12:10:03,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 12:10:03,747 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 12:10:03,748 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [143474722] [2020-10-16 12:10:03,748 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 12:10:03,748 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-16 12:10:03,748 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2001176773] [2020-10-16 12:10:03,749 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-16 12:10:03,749 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 12:10:03,749 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-16 12:10:03,750 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-16 12:10:03,750 INFO L87 Difference]: Start difference. First operand 214 states and 590 transitions. Second operand 5 states. [2020-10-16 12:10:03,816 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 12:10:03,816 INFO L93 Difference]: Finished difference Result 232 states and 614 transitions. [2020-10-16 12:10:03,817 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-16 12:10:03,817 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 10 [2020-10-16 12:10:03,817 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 12:10:03,819 INFO L225 Difference]: With dead ends: 232 [2020-10-16 12:10:03,819 INFO L226 Difference]: Without dead ends: 196 [2020-10-16 12:10:03,820 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-10-16 12:10:03,822 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 196 states. [2020-10-16 12:10:03,832 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 196 to 196. [2020-10-16 12:10:03,833 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 196 states. [2020-10-16 12:10:03,834 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 196 states to 196 states and 530 transitions. [2020-10-16 12:10:03,835 INFO L78 Accepts]: Start accepts. Automaton has 196 states and 530 transitions. Word has length 10 [2020-10-16 12:10:03,835 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 12:10:03,835 INFO L481 AbstractCegarLoop]: Abstraction has 196 states and 530 transitions. [2020-10-16 12:10:03,835 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-16 12:10:03,835 INFO L276 IsEmpty]: Start isEmpty. Operand 196 states and 530 transitions. [2020-10-16 12:10:03,837 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-10-16 12:10:03,837 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 12:10:03,837 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 12:10:03,837 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-16 12:10:03,837 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 12:10:03,838 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 12:10:03,838 INFO L82 PathProgramCache]: Analyzing trace with hash 462854661, now seen corresponding path program 1 times [2020-10-16 12:10:03,838 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 12:10:03,838 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [919775048] [2020-10-16 12:10:03,839 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 12:10:03,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 12:10:03,926 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 12:10:03,927 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [919775048] [2020-10-16 12:10:03,927 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 12:10:03,927 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-16 12:10:03,928 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [290418788] [2020-10-16 12:10:03,928 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-16 12:10:03,928 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 12:10:03,929 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-16 12:10:03,929 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-10-16 12:10:03,930 INFO L87 Difference]: Start difference. First operand 196 states and 530 transitions. Second operand 6 states. [2020-10-16 12:10:04,050 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 12:10:04,050 INFO L93 Difference]: Finished difference Result 255 states and 672 transitions. [2020-10-16 12:10:04,050 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-16 12:10:04,051 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 11 [2020-10-16 12:10:04,051 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 12:10:04,052 INFO L225 Difference]: With dead ends: 255 [2020-10-16 12:10:04,052 INFO L226 Difference]: Without dead ends: 150 [2020-10-16 12:10:04,053 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=41, Invalid=69, Unknown=0, NotChecked=0, Total=110 [2020-10-16 12:10:04,054 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 150 states. [2020-10-16 12:10:04,060 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 150 to 150. [2020-10-16 12:10:04,060 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 150 states. [2020-10-16 12:10:04,061 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 150 states to 150 states and 378 transitions. [2020-10-16 12:10:04,062 INFO L78 Accepts]: Start accepts. Automaton has 150 states and 378 transitions. Word has length 11 [2020-10-16 12:10:04,062 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 12:10:04,062 INFO L481 AbstractCegarLoop]: Abstraction has 150 states and 378 transitions. [2020-10-16 12:10:04,062 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-16 12:10:04,062 INFO L276 IsEmpty]: Start isEmpty. Operand 150 states and 378 transitions. [2020-10-16 12:10:04,064 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-10-16 12:10:04,064 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 12:10:04,064 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 12:10:04,064 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-16 12:10:04,065 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 12:10:04,065 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 12:10:04,065 INFO L82 PathProgramCache]: Analyzing trace with hash 266026162, now seen corresponding path program 1 times [2020-10-16 12:10:04,065 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 12:10:04,066 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1733680236] [2020-10-16 12:10:04,066 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 12:10:04,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 12:10:04,175 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 12:10:04,175 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1733680236] [2020-10-16 12:10:04,176 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 12:10:04,176 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-16 12:10:04,176 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1808112886] [2020-10-16 12:10:04,176 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-16 12:10:04,177 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 12:10:04,177 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-16 12:10:04,177 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-16 12:10:04,178 INFO L87 Difference]: Start difference. First operand 150 states and 378 transitions. Second operand 4 states. [2020-10-16 12:10:04,210 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 12:10:04,211 INFO L93 Difference]: Finished difference Result 164 states and 376 transitions. [2020-10-16 12:10:04,211 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-16 12:10:04,212 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 12 [2020-10-16 12:10:04,212 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 12:10:04,213 INFO L225 Difference]: With dead ends: 164 [2020-10-16 12:10:04,213 INFO L226 Difference]: Without dead ends: 128 [2020-10-16 12:10:04,214 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 [2020-10-16 12:10:04,215 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 128 states. [2020-10-16 12:10:04,219 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 128 to 128. [2020-10-16 12:10:04,219 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 128 states. [2020-10-16 12:10:04,220 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 128 states to 128 states and 293 transitions. [2020-10-16 12:10:04,220 INFO L78 Accepts]: Start accepts. Automaton has 128 states and 293 transitions. Word has length 12 [2020-10-16 12:10:04,220 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 12:10:04,220 INFO L481 AbstractCegarLoop]: Abstraction has 128 states and 293 transitions. [2020-10-16 12:10:04,221 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-16 12:10:04,221 INFO L276 IsEmpty]: Start isEmpty. Operand 128 states and 293 transitions. [2020-10-16 12:10:04,222 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-10-16 12:10:04,222 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 12:10:04,222 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 12:10:04,222 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-16 12:10:04,223 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 12:10:04,223 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 12:10:04,223 INFO L82 PathProgramCache]: Analyzing trace with hash -1292455845, now seen corresponding path program 1 times [2020-10-16 12:10:04,223 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 12:10:04,224 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [738458712] [2020-10-16 12:10:04,224 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 12:10:04,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 12:10:04,277 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 12:10:04,277 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [738458712] [2020-10-16 12:10:04,278 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 12:10:04,278 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-16 12:10:04,278 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [106217077] [2020-10-16 12:10:04,278 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-16 12:10:04,279 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 12:10:04,279 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-16 12:10:04,279 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-16 12:10:04,279 INFO L87 Difference]: Start difference. First operand 128 states and 293 transitions. Second operand 5 states. [2020-10-16 12:10:04,320 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 12:10:04,321 INFO L93 Difference]: Finished difference Result 116 states and 240 transitions. [2020-10-16 12:10:04,321 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-16 12:10:04,321 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 13 [2020-10-16 12:10:04,322 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 12:10:04,322 INFO L225 Difference]: With dead ends: 116 [2020-10-16 12:10:04,323 INFO L226 Difference]: Without dead ends: 92 [2020-10-16 12:10:04,323 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 [2020-10-16 12:10:04,324 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 92 states. [2020-10-16 12:10:04,326 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 92 to 92. [2020-10-16 12:10:04,326 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 92 states. [2020-10-16 12:10:04,327 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92 states to 92 states and 186 transitions. [2020-10-16 12:10:04,327 INFO L78 Accepts]: Start accepts. Automaton has 92 states and 186 transitions. Word has length 13 [2020-10-16 12:10:04,327 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 12:10:04,328 INFO L481 AbstractCegarLoop]: Abstraction has 92 states and 186 transitions. [2020-10-16 12:10:04,328 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-16 12:10:04,328 INFO L276 IsEmpty]: Start isEmpty. Operand 92 states and 186 transitions. [2020-10-16 12:10:04,329 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-10-16 12:10:04,329 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 12:10:04,329 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 12:10:04,330 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-16 12:10:04,330 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 12:10:04,330 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 12:10:04,330 INFO L82 PathProgramCache]: Analyzing trace with hash -228576461, now seen corresponding path program 1 times [2020-10-16 12:10:04,330 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 12:10:04,331 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1354906865] [2020-10-16 12:10:04,331 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 12:10:04,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 12:10:04,370 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 12:10:04,370 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1354906865] [2020-10-16 12:10:04,370 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 12:10:04,371 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-16 12:10:04,371 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1731647699] [2020-10-16 12:10:04,371 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-16 12:10:04,372 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 12:10:04,372 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-16 12:10:04,372 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-16 12:10:04,372 INFO L87 Difference]: Start difference. First operand 92 states and 186 transitions. Second operand 4 states. [2020-10-16 12:10:04,391 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 12:10:04,391 INFO L93 Difference]: Finished difference Result 120 states and 228 transitions. [2020-10-16 12:10:04,392 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-16 12:10:04,392 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 14 [2020-10-16 12:10:04,392 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 12:10:04,393 INFO L225 Difference]: With dead ends: 120 [2020-10-16 12:10:04,393 INFO L226 Difference]: Without dead ends: 94 [2020-10-16 12:10:04,394 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-16 12:10:04,394 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 94 states. [2020-10-16 12:10:04,396 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 94 to 90. [2020-10-16 12:10:04,397 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 90 states. [2020-10-16 12:10:04,397 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 90 states and 175 transitions. [2020-10-16 12:10:04,397 INFO L78 Accepts]: Start accepts. Automaton has 90 states and 175 transitions. Word has length 14 [2020-10-16 12:10:04,398 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 12:10:04,398 INFO L481 AbstractCegarLoop]: Abstraction has 90 states and 175 transitions. [2020-10-16 12:10:04,398 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-16 12:10:04,398 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 175 transitions. [2020-10-16 12:10:04,399 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-10-16 12:10:04,399 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 12:10:04,399 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 12:10:04,399 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-16 12:10:04,400 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 12:10:04,400 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 12:10:04,400 INFO L82 PathProgramCache]: Analyzing trace with hash -1357686433, now seen corresponding path program 1 times [2020-10-16 12:10:04,400 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 12:10:04,400 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2113300106] [2020-10-16 12:10:04,401 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 12:10:04,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 12:10:04,451 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 12:10:04,451 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2113300106] [2020-10-16 12:10:04,451 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 12:10:04,452 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-16 12:10:04,452 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [583525474] [2020-10-16 12:10:04,452 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-16 12:10:04,452 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 12:10:04,453 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-16 12:10:04,453 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-16 12:10:04,454 INFO L87 Difference]: Start difference. First operand 90 states and 175 transitions. Second operand 5 states. [2020-10-16 12:10:04,488 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 12:10:04,488 INFO L93 Difference]: Finished difference Result 113 states and 209 transitions. [2020-10-16 12:10:04,489 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-16 12:10:04,489 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 15 [2020-10-16 12:10:04,489 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 12:10:04,490 INFO L225 Difference]: With dead ends: 113 [2020-10-16 12:10:04,490 INFO L226 Difference]: Without dead ends: 70 [2020-10-16 12:10:04,490 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-10-16 12:10:04,491 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70 states. [2020-10-16 12:10:04,492 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70 to 68. [2020-10-16 12:10:04,493 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 68 states. [2020-10-16 12:10:04,493 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 115 transitions. [2020-10-16 12:10:04,493 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 115 transitions. Word has length 15 [2020-10-16 12:10:04,494 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 12:10:04,494 INFO L481 AbstractCegarLoop]: Abstraction has 68 states and 115 transitions. [2020-10-16 12:10:04,494 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-16 12:10:04,494 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 115 transitions. [2020-10-16 12:10:04,495 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-10-16 12:10:04,495 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 12:10:04,495 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 12:10:04,495 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-16 12:10:04,495 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 12:10:04,496 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 12:10:04,496 INFO L82 PathProgramCache]: Analyzing trace with hash 1504039886, now seen corresponding path program 1 times [2020-10-16 12:10:04,496 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 12:10:04,496 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1384182931] [2020-10-16 12:10:04,497 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 12:10:04,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 12:10:04,572 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 12:10:04,573 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1384182931] [2020-10-16 12:10:04,573 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 12:10:04,574 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-16 12:10:04,574 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1769101283] [2020-10-16 12:10:04,574 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-16 12:10:04,575 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 12:10:04,575 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-16 12:10:04,575 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-10-16 12:10:04,575 INFO L87 Difference]: Start difference. First operand 68 states and 115 transitions. Second operand 6 states. [2020-10-16 12:10:04,601 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 12:10:04,601 INFO L93 Difference]: Finished difference Result 58 states and 100 transitions. [2020-10-16 12:10:04,602 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-16 12:10:04,602 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 15 [2020-10-16 12:10:04,602 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 12:10:04,602 INFO L225 Difference]: With dead ends: 58 [2020-10-16 12:10:04,602 INFO L226 Difference]: Without dead ends: 0 [2020-10-16 12:10:04,603 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 [2020-10-16 12:10:04,603 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-16 12:10:04,603 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-16 12:10:04,603 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-16 12:10:04,604 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-16 12:10:04,604 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 15 [2020-10-16 12:10:04,604 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 12:10:04,604 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-16 12:10:04,604 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-16 12:10:04,604 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-16 12:10:04,605 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-16 12:10:04,605 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-16 12:10:04,608 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.10 12:10:04 BasicIcfg [2020-10-16 12:10:04,608 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-16 12:10:04,611 INFO L168 Benchmark]: Toolchain (without parser) took 4265.84 ms. Allocated memory was 138.4 MB in the beginning and 251.1 MB in the end (delta: 112.7 MB). Free memory was 99.5 MB in the beginning and 204.8 MB in the end (delta: -105.3 MB). Peak memory consumption was 7.4 MB. Max. memory is 7.1 GB. [2020-10-16 12:10:04,612 INFO L168 Benchmark]: CDTParser took 0.45 ms. Allocated memory is still 138.4 MB. Free memory was 120.0 MB in the beginning and 119.7 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. [2020-10-16 12:10:04,613 INFO L168 Benchmark]: CACSL2BoogieTranslator took 726.92 ms. Allocated memory was 138.4 MB in the beginning and 200.3 MB in the end (delta: 61.9 MB). Free memory was 99.3 MB in the beginning and 157.9 MB in the end (delta: -58.6 MB). Peak memory consumption was 26.4 MB. Max. memory is 7.1 GB. [2020-10-16 12:10:04,614 INFO L168 Benchmark]: Boogie Procedure Inliner took 49.84 ms. Allocated memory is still 200.3 MB. Free memory was 157.9 MB in the beginning and 155.8 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. [2020-10-16 12:10:04,615 INFO L168 Benchmark]: Boogie Preprocessor took 28.28 ms. Allocated memory is still 200.3 MB. Free memory was 155.8 MB in the beginning and 154.5 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. [2020-10-16 12:10:04,616 INFO L168 Benchmark]: RCFGBuilder took 459.94 ms. Allocated memory is still 200.3 MB. Free memory was 153.8 MB in the beginning and 132.4 MB in the end (delta: 21.5 MB). Peak memory consumption was 21.5 MB. Max. memory is 7.1 GB. [2020-10-16 12:10:04,616 INFO L168 Benchmark]: TraceAbstraction took 2995.19 ms. Allocated memory was 200.3 MB in the beginning and 251.1 MB in the end (delta: 50.9 MB). Free memory was 131.7 MB in the beginning and 204.8 MB in the end (delta: -73.1 MB). There was no memory consumed. Max. memory is 7.1 GB. [2020-10-16 12:10:04,620 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.45 ms. Allocated memory is still 138.4 MB. Free memory was 120.0 MB in the beginning and 119.7 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 726.92 ms. Allocated memory was 138.4 MB in the beginning and 200.3 MB in the end (delta: 61.9 MB). Free memory was 99.3 MB in the beginning and 157.9 MB in the end (delta: -58.6 MB). Peak memory consumption was 26.4 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 49.84 ms. Allocated memory is still 200.3 MB. Free memory was 157.9 MB in the beginning and 155.8 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 28.28 ms. Allocated memory is still 200.3 MB. Free memory was 155.8 MB in the beginning and 154.5 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 459.94 ms. Allocated memory is still 200.3 MB. Free memory was 153.8 MB in the beginning and 132.4 MB in the end (delta: 21.5 MB). Peak memory consumption was 21.5 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2995.19 ms. Allocated memory was 200.3 MB in the beginning and 251.1 MB in the end (delta: 50.9 MB). Free memory was 131.7 MB in the beginning and 204.8 MB in the end (delta: -73.1 MB). There was no memory consumed. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 601 VarBasedMoverChecksPositive, 20 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 0 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 25 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 1.2s, 76 PlacesBefore, 31 PlacesAfterwards, 68 TransitionsBefore, 22 TransitionsAfterwards, 1178 CoEnabledTransitionPairs, 6 FixpointIterations, 13 TrivialSequentialCompositions, 35 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 8 ConcurrentYvCompositions, 1 ChoiceCompositions, 57 TotalNumberOfCompositions, 2372 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 4 procedures, 67 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 2.8s, OverallIterations: 9, TraceHistogramMax: 1, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.3s, HoareTripleCheckerStatistics: 179 SDtfs, 204 SDslu, 302 SDs, 0 SdLazy, 161 SolverSat, 30 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 45 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=274occurred 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, 9 MinimizatonAttempts, 6 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 107 NumberOfCodeBlocks, 107 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 98 ConstructedInterpolants, 0 QuantifiedInterpolants, 3457 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 9 InterpolantComputations, 9 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...